Technology Insight Report                                                                        GRAPHENE                 ...
OverviewIntroduction to GrapheneGraphene is an allotrope of carbon, whose structure is one-atom-thickplanar sheets of sp2-...
Benefits of GrapheneResearch and development around graphene is moving ahead yielding newforms, new applications and new m...
Graphene– Insights from PatentsOverviewPatent filings around Graphene hold great insights into the innovation,research and...
By Properties        Chemical Properties        Electrical Properties        Mechanical Properties        Optical Prop...
The Search StrategyThe first step is to create and define a patent set that will serve as the basis of our analysis.Using ...
Publication TrendWhat has been the IP publication trend for Graphene?Patents related to Graphene can be traced back to bef...
Top Assignees and their trendsWho have been the top assignees or the key players within this industry?  11.   SIEMENS AG  ...
Assignee TrendsConsidering cumulative patent filing trends Siemens AG has the most remarkable figures for IPpublications f...
Assignee - Key StatisticsHere we summarize key parameters of Top 15 Assignees such as filing trend, Avg. number of Forward...
© 2011 Gridlogics. All Rights Reserved.       Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd.Feedb...
How we did it?First we generated clusters using the auto cluster option provided in the software. These clusters were then...
Inventor - Key StatisticsHere we summarize key parameters of Top 15 Inventors such as filing trend, average number offorwa...
How we did it?In order to compress all the information into a single report, we used the 360 ° series of reports available...
Graphene – Properties vs. Application AreasWhat properties of Graphene are used across different application areas? In the...
How we did it?We used the categories created and using the co-occurrence analyzer, we selected the categories and theassig...
Assignee Portfolios spread across different propertiesWhat Graphene properties are used by key Assignees? The chart reveal...
How we did it?We first generated a matrix for the US Classes along with the class definitions using the co-occurrence anal...
Assignee Portfolios spread across different Application AreasWhich assignees hold the maximum inventions across different ...
Concepts identified across various Electronic DevicesThe graphs below highlight key concepts within Electronic devices.We ...
Lithium-ion Batteries – Related concepts                       (Please refer to Appendix C, Page 31 for Patent Details)   ...
Batteries – Related concepts                  Resistance                      Reactor                       Engine        ...
Integrated Circuits – Related concepts                          Value                     Thickness                     St...
Fuel Cell – Related Concepts                  Glycol               Capacity                 Portion       Weight percentEl...
Solar Cells – Related Concepts                                 Stacks                               Solvent               ...
Memory Device – Related Concepts           Semiconductor device                              Matrix                       ...
Appendix A: Key Assignee Normalization TableSIEMENS AGSIEMENS AGAB AND M GMBHMASCHINEN GMBHSAMSUNG GROUPSAMSUNG GROUPTHE U...
WOLF AURELBEHNKEN GESAHITZBLECK JULIAMEUER STEFANMEYER HELMUTZENTEL RUDOLFDERN GESAFUSSANGEL CHRISTELVOGEL STEPHANIEMITSUB...
Appendix B: Search Strings Used for CategorizationCategorization: Application Areas1. Automobiles                         ...
(abst to spec) contains transistor*                       78 results(abst to spec) contains ("electric double-layer       ...
Appendix C: Graphene Application Area Patents                                             Lithium-ion Batteries PatentsPat...
The invention relates to a lithium ion battery                                                                            ...
A carbonaceous particle is provided which comprises                                                                       ...
To provide a negative electrode active material for an                                                                    ...
An electrode material for a secondary battery has a                                                                       ...
A composite composition for electrochemical cell                                                                          ...
A process for producing solid nanocomposite                                                                               ...
This invention provides a mixed nano-filament                                                                             ...
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
Technology Insight Report   Graphene
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Technology Insight Report Graphene

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This report covers patent analysis on the use and application of graphene, its research momentum and key intellectual property indicators. Owing to their specialized structures and minute diameter, it can be utilized as a sensor device, semiconductor, or for components of integrated circuits. Patent data reveals various organizations have focused their research across different categories and application areas of graphene. It provides scope for researches that can chance the path of quantum physics. This report focuses on how Patent data can help uncover the trends, gaps and opportunities that exist around this area. You will find the information on the research activity, application areas, the companies most active in this research area, the filings spread, key comparisons etc. This report was prepared by mining patent data using Patent iNSIGHT Pro, a comprehensive patent analysis platform that helps one accelerate time-to-decision from patent analysis activities.

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  • Thanks for the report. The patent landscape on Graphene and key research entity information was very useful. We are a research lab doing some fundamental level research on Graphene and so we are able to appreciate the information in the report.
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Technology Insight Report Graphene

  1. 1. Technology Insight Report GRAPHENE Graphene with the unique combination of bonded carbon atom structures with its myriad and complex physical properties is poised to have a big impact on the future of material sciences, electronics and nanotechnology. Owing to their specialized structures and minute diameter, it can be utilized as a sensor device, semiconductor, or for components of integrated circuits. The reported properties and applications of this two-dimensional form of carbon structure have opened up new opportunities for the future devices and systems.Disclaimer: This report should not be construed as business advice and the insights are not to be used as the basis forinvestment or business decisions of any kind without your own research and validation. Gridlogics Technologies Pvt. Ltd.disclaims all warranties whether express, implied or statutory, of reliability, accuracy or completeness of results, with regards tothe information contained in this report. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  2. 2. OverviewIntroduction to GrapheneGraphene is an allotrope of carbon, whose structure is one-atom-thickplanar sheets of sp2-bonded carbon atoms that are densely packed in ahoneycomb crystal lattice. The term graphene was coined as acombination of graphite and the suffix -ene by Hanns-Peter Boehm, whodescribed single-layer carbon foils in 1962. Graphene is most easilyvisualized as an atomic-scale chicken wire made of carbon atoms and theirbonds. The crystalline or "flake" form of graphite consists of manygraphene sheets stacked together.The carbon-carbon bond length in graphene is about 0.142 nanometers.Graphene sheets stack to form graphite with an interplanar spacing of0.335 nm, which means that a stack of 3 million sheets would be only onemillimeter thick. Graphene is the basic structural element of some carbonallotropes including graphite, charcoal, carbon nanotubes and fullerenes. Itcan also be considered as an indefinitely large aromatic molecule, thelimiting case of the family of flat polycyclic aromatic hydrocarbons. TheNobel Prize in Physics for 2010 was awarded to Andre Geim andKonstantin Novoselov "for groundbreaking experiments regarding the two-dimensional material graphene". © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  3. 3. Benefits of GrapheneResearch and development around graphene is moving ahead yielding newforms, new applications and new material based on this unique structureand we take a look into this breakthrough in science and the innovationthat surrounds it as it promises to be a large part or small devices of thefuture. Transistors made using these graphenes can work faster than those made of silicon, in electronics. Computer chips should be very much thin in order to work faster and also to use less electricity. As a result, the distance to be travelled by the electrons will be reduced. This can in turn improve the speed of the computer. Since graphene transistors will be small in size, it can be of much use for this purpose. Graphene electrodes can now be flexible and transparent. It is possible to produce computer monitors which are having thickness as like a paper and are transparent. Image Source: Graphene is being used to conduct researches for knowing more http://www.nature.com/news/2009 about two dimensional materials having special features. /090114/full/news.2009.28.html Graphene provides scope for researches that can chance the path of quantum physics. When mixed with graphene, plastic also turns as conductor for electricity. At the same time, it would also tolerate heat. Based on this fact, harder mixed materials can be produced in future. Along with having thin shape, they also have quality of expanding. These mixed materials may be used extensively in the making of satellites, air planes, solar panels, cars and others. Graphene will be 98% transparent and at the same time will absorb electricity well. Based on this feature, transparent touch screens, light panels and mobile phones can be made. Graphene is used in LEDs for brake Because of special structure of graphene, sensitive sensors can lights, stoplights, flashlights be manufactured. They can detect pollution even at the smallest Image Source: range. http://products.cvdequipment.com/ applications/4/ © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  4. 4. Graphene– Insights from PatentsOverviewPatent filings around Graphene hold great insights into the innovation,research and development within the space. With the help of PatentiNSIGHT Pro, we will analyze the full coronary stent patent data to findanswers to the following:  What does the IP publication trend for Graphene look like and how has activity around filings evolved?  Who are the top assignees or key players in graphene?  What Graphene properties are used across different application areas?  What Graphene properties are used by key Assignees?  How is Assignee portfolio spread across different application areas of graphene?To get a more accurate and all round perspective on these the patent sethas been classified into these two categories.By Application Areas  Automobiles  Chemical Sensors  Composite Materials  Electronics a) Batteries b) Fuel Cells c) Integrated Circuits d) Light Emitting Diode e) Liquid Crystal Devices f) Lithium-ion Batteries g) Memory Devices h) Solar Cells i) Thin Film Transistor j) Touch Screen Sensors k) Transistors l) Ultracapacitors  Graphene Nanoribbons  Light Polarization  Medical Device a) Graphene Biodevices/ DNA Sequencing  Molecular Sensors  Spintronics  Thermoplastics © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  5. 5. By Properties  Chemical Properties  Electrical Properties  Mechanical Properties  Optical Properties  Physical Properties  Structural Properties  Thermal Properties The illustration below shows the different categories prepared and the number of records in each. The categorization involved defining a search strategy for each topic and then conducting the search using the Advanced Search capability in Patent iNSIGHT Pro. Details of search strings used for each category are given in Appendix B. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  6. 6. The Search StrategyThe first step is to create and define a patent set that will serve as the basis of our analysis.Using the commercial patent database PatBase as our data source we used the following search queryto create our patent set. (TAC=graphene* or grafeno or graphène or graphén or grapheen)The query was directed to search through the full text and a patent set of1862 records with one publication per family were generated.The publications included in the report are updated as of 19th February, 2011. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  7. 7. Publication TrendWhat has been the IP publication trend for Graphene?Patents related to Graphene can be traced back to before 1950, although the number of filingsremained relatively low all the way up till the year 2000. Noticeably there was a very large spike inpublications for 2010 which saw more than 600 patents published during the year.Just a month and a half into 2011 and we are already seeing around 100 patents. It’s clear that thistechnology picked up slowly, grew consistently and has now reached new heights and is evidently onan upward trend.How we did it?Once the patents were populated in Patent iNSIGHT Pro, the publication trend chart was generated on a singleclick using the dashboard tool. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  8. 8. Top Assignees and their trendsWho have been the top assignees or the key players within this industry? 11. SIEMENS AG 1. THE REGENTS OF THE UNIVERSITY OF 12. JANG BOR Z CALIFORNIA 13. ZHAMU ARUNA 2. TOYOTA GROUP 14. SAMSUNG GROUP 3. ALCATEL-LUCENT INC. 15. IBM CORP 4. HEWLETT-PACKARD CO 16. SANDISK CORP 5. TEIJIN LTD. 17. FUJITSU LTD. 6. XEROX CORP 18. HITACHI LTD. 7. COMMISSARIAT A LENERGIE 19. CANON INC. ATOMIQUE 20. GENERAL ELECTRIC CO 8. GSI CREOS CORP 9. CASIO COMPUTER CO LTD. 10. PANASONIC CORPHow we did it?Once the patents were populated in Patent iNSIGHT Pro, the assignee clean‐up tools were used to normalize thenames. Different cleanup tools were leveraged:• To locate assignees for unassigned records• To clean up records having multiple assignees• To locate the correct assignee names for US records using the US assignments database• To merge assignees that resulted from a merger or acquisition or name change.Please refer Appendix A for more details on Assignee merging.Once the Assignee names were cleaned up, the dashboard tool within Patent iNSIGHT Pro was used to find thetop 20 assignees within the given patent set. A visual graph was created based on the results of the topassignees with the number of patents alongside each one.The full Assignee table is available here:http://www.patentinsightpro.com/techreports/0311/List%20of%20Assignees.xls © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  9. 9. Assignee TrendsConsidering cumulative patent filing trends Siemens AG has the most remarkable figures for IPpublications for graphene. Interestingly, inventors like Jang Bor Z and Zhamu Aruna also show anincrease in terms of IP publications.Sandisk Corp has also made consistent advances in growing their IP portfolio with graphene patents.How we did it?We applied filters on the filing years using the option provided in the Report Dashboard in Patent iNSIGHT Pro,The graph showing the cumulative filings of top 15 assignees with respect to time was created. The output wascreated in the form of a line graph to get a visual insight which could display comparisons across the assignees. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  10. 10. Assignee - Key StatisticsHere we summarize key parameters of Top 15 Assignees such as filing trend, Avg. number of Forward citationsper record, Top inventors in each Assignee, Top Co-Assignees and Coverage, unique and new technologies ofunderlying patent familiesUnique technologies refer to those concepts unique within the selected records only.New technologies refer to the new keywords in recent 3 years, i.e., from 2009 - 2011 © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  11. 11. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd.Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  12. 12. How we did it?First we generated clusters using the auto cluster option provided in the software. These clusters were thenused in the Assignee 360° report option to generate new and unique clusters for the top 15 assignees. Thegenerated report was then exported to Excel using the option provided for the same. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  13. 13. Inventor - Key StatisticsHere we summarize key parameters of Top 15 Inventors such as filing trend, average number offorward citations per record, key associated companies and top 5 co-inventors. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  14. 14. How we did it?In order to compress all the information into a single report, we used the 360 ° series of reports available in thesoftware. From the Inventor 360° report options, we selected the different pieces of information we wanted toinclude in the singular display and then ran the report. The generated report as then exported to Excel using theoption provided for the same. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  15. 15. Graphene – Properties vs. Application AreasWhat properties of Graphene are used across different application areas? In the table below,properties with higher number of patent filings have been highlighted with stronger shades of orange.One can see that many patents target the Electrical and Structural properties.We can see that mechanical and optical properties haven’t been used in any of the Automobileapplications. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  16. 16. How we did it?We used the categories created and using the co-occurrence analyzer, we selected the categories and theassignees to be included and then ran the report. The generated report was then exported to Excel using theoption provided. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  17. 17. Assignee Portfolios spread across different propertiesWhat Graphene properties are used by key Assignees? The chart reveals which of the key playershold patents assigned for which of the main properties within the patent set. For example, JangBor Z and Zhamu Aruna collectively hold maximum records for Chemical Properties. When itcomes to innovations around Electrical properties, Sandisk Corp leads the way with 24 out of atotal 186 patents for this category, closely followed by IBM Corp. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  18. 18. How we did it?We first generated a matrix for the US Classes along with the class definitions using the co-occurrence analyzer.The generated matrix was exported to Excel using the option provided. We classified the results by manualresearch into various properties. Then by using a combination of semantic analysis tools such as the clusteringtools and searching tools available in Patent iNSIGHT Pro, patents were categorized under the differentproperties. Using the co-occurrence analyzer, we selected the categories and the assignees to be included andthen ran the report. The generated report was then exported to Excel using the option provided. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  19. 19. Assignee Portfolios spread across different Application AreasWhich assignees hold the maximum inventions across different application areas of Graphene?In the matrix below leading patent holdings within each application areas of graphene have beenhighlighted with stronger shades of green for larger number of patents within that category. SandiskCorp dominates patent holdings for “Memory Devices” with 31 out of 56 patent records classifiedunder this application area.Significantly, inventors, Jang Bor Z and Zhamu Aruna jointly head “Composite Materials” with 17 outof 158 records.How we did it?First the various application areas of graphene were identified by manual research. Then by using a combinationof semantic analysis tools such as the clustering tools and searching tools available in Patent iNSIGHT Pro,patents were categorized under the different application areas. Finally a co- occurrence matrix was generated tomap the application areas with the assignees to identify which assignees hold the strongest portfolios in whichapplication areas. The generated report was then exported to Excel using the option provided. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  20. 20. Concepts identified across various Electronic DevicesThe graphs below highlight key concepts within Electronic devices.We created groups of technologies and using clustering tools key sub topics were generated. These were thenexported to Excel and the number of records gathered for each sub topic was then displayed using a bar chart. Transistors – Related concepts (Please refer to Appendix C, Page 49 for Patent Details) Transistors on a silicon or SOI substrate Carbon-based Detection Process of forming device Source and drain regions Film Power Phase Particles Parallel Lattice Catalytic Implant Mesa Reactive Radiation Predetermined Functional groups Electrical resistance Contact resistance Interface Interactions Exfoliating Point Etching Face Switching Working surface Modulation Thin-film Network Digital Amplifier Gate conductor Programming a nonvolatile memory Graphene-based device is formed Exposed Threshold voltage Heating Nanoribbons Interconnects Quantum Logic circuit Silicon carbide Crystalline substrate Oxide Single layer Forming a trench Silicide layer Nanoscale devices Thin Molecular Graphene sheet Lines Graphitic material Impedance matching Epitaxial graphene Single crystal 0 1 2 3 4 5 Number of Records © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  21. 21. Lithium-ion Batteries – Related concepts (Please refer to Appendix C, Page 31 for Patent Details) Energy storage Organic material Rate Flake Doped Design Multi-layer Electron emission Synthetic Ionic Display LiFePO4 Hybrid Degrees centigrade Electron-emitting Alcohol-water solution High yield Aqueous solution Application prospectsProtective matrix material reinforced Surface area Nano-filament composition Electrochemical cell electrode Plate Vapor grown carbon Hexagonal carbon layers Solid nanocomposite Prelithiated anode active material Conductive agent Negative electrode active Carbonaceous material Conductive additive 0 1 2 3 4 Number of Records © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  22. 22. Batteries – Related concepts Resistance Reactor Engine STORE Efficiency Raw material Ultrasonic Specified Reactive Nanoscale Interact Hydride Alkaline Laminated Intermediate Capacitors Nanofibers Carbon-based Water soluble Redox reaction Catalyst Preparing a pristine NGP… Secondary Crystalline Conversion Capacitive Membrane Electrolyte contains Bipolar plate Aqueous solution Alkali metal Molecular Mesoporous Carbonaceous Hybrid nano‐filament… Laminar graphite material Electrochemical device Mass Intercalation compound Carbon nanostructures Organic solventRegarding the solar battery Solid nanocomposite Fluid Exfoliated graphite Hexagonal carbon Power Matrix material 0 1 2 3 4 Number of Records © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  23. 23. Integrated Circuits – Related concepts Value Thickness Standards Plastic Modulation Manufacturing Specified Organic Cost Processor Input Band gap Patterned Body Printing Micro Chemical Active Single crystal Thin film DetectionPyrolytic carbon or graphene Nano Medium Analyte Gate dielectric Power Field-effect transistors Silicon carbide Logic circuit 0 1 2 3 Number of records © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  24. 24. Fuel Cell – Related Concepts Glycol Capacity Portion Weight percentElectrode applicationsPrecursor composition Platinum Flexible graphite Substrates Hydrophilic Carbon-based Specific Thermal Molecular Two clad layers Oxygen reduction Lithium ion Current collector Atomic ratio Supercapacitors Removal Electrooxidation Planar outer surface Curing or solidifying Methanol fuel Sheet and the bottom Liquid medium Carbon nano wall Surface area Carbon nanofiber Hydrogen storage Fuel cell vehicle Expanded graphite Electrical power 0 1 2 3 4 Number of records © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  25. 25. Solar Cells – Related Concepts Stacks Solvent Pressure N-type Organic-inorganic SCALE Plane Medium Source Mixture Electrolyte Intensity level PowderElement a semiconductor compound Replace expensive indium-tin oxide Sheet resistance Low sheet Incident light Conversion efficiency Active layer Dispersible and electrically Laminar graphite material Thermal interface material Dye Wavelength Nanofiber Intercalation compound 0 1 2 3 Number of records © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  26. 26. Memory Device – Related Concepts Semiconductor device Matrix Portion Stack Substantially Damascene Electrical contact Forming memory cells High resistance Dielectric Access Processor Drain Card Energy Configured Fabricating Transmission Absolute value Memory device Nano Flow Programming a nonvolatile… Modules Code Bit line Microelectronic structure Pressure Triple or quadruple exposure Pillar shaped First spacer pattern Silicide layer Carbon films Resistivity switching storage Reversible resistance-switching Hard mask layer 0 1 2 3 4 Number of RecordsPlease refer Appendix C for patent details on ‘Lithium-ion Batteries’ and ‘Transistor’ © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  27. 27. Appendix A: Key Assignee Normalization TableSIEMENS AGSIEMENS AGAB AND M GMBHMASCHINEN GMBHSAMSUNG GROUPSAMSUNG GROUPTHE UNIVERSITY OF MARYLAND COLLEGE PARKFUJITSU LTD.FUJITSU LTD.HITACHI LTD.HASHIZUME TOMIHIROHEIKE SEIJIHITACHI LTD.ISHIBASHI MASAYOSHIKATO MIDORIOKAI MAKOTOTOYOTA GROUPTOYOTA GROUPHIRAMATSU MINEOHORI MASARUBASF GROUPBASF GROUPAUSTERMANN DORISDORNBUSCH MICHAELNARJES HENDRIKBENZ ROLFBRUNNER MARTINKRISTIANSEN PER MAGNUSROTZINGER BRUNOANDERLIK RAINERBENTEN REBEKKA VONHOEFLI KURTVOELKEL MARKWEBER MARTINBLACKBURN JOHN STUARTHEAVENS STEPHENHUBER GUENTHERJONES IVOR WYNNSCHIERLE ARNDT KERSTINSTACKPOOL FRANCISSTEFAN MADALINA ANDREEABAYER MATERIALSCIENCE AGBAYER MATERIALSCIENCE AGBIERDEL MICHAELBUCHHOLZ SIGURDMICHELE VOLKERMLECZKO LESLAWRUDOLF REINER © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  28. 28. WOLF AURELBEHNKEN GESAHITZBLECK JULIAMEUER STEFANMEYER HELMUTZENTEL RUDOLFDERN GESAFUSSANGEL CHRISTELVOGEL STEPHANIEMITSUBISHI GROUPFRONTIER CARBON CORPMITSUBISHI GROUPVORBECK MATERIALS CORPVORBECK MATERIALS CORPCRAIN JOHN MLETTOW JOHN SREDMOND KATEKRISHNAIAH GAUTHAMVARMA VIPINSCHEFFER DANGINNEMAN JR CARL R © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  29. 29. Appendix B: Search Strings Used for CategorizationCategorization: Application Areas1. Automobiles Automobiles(abst to spec) contains (aircraft or aeroplane or 18 resultsaerospace or aviation or automobile* orvehicle*) and graphene2. Chemical Sensors Chemical Sensors(abst to spec) contains (chemi* w/3 sensor*) 7 results3. Composite Materials Composite Materials(abst to spec) contains (composite* or 158 results(composite w/2 material*)) and graphene4. Electronics Electronics(abst to spec) contains (lithium or batter*) 53 results(abst to spec) contains (lithium w/2 (metal* or 8 resultscompound*) and batter* or cell*)(abst to spec) contains (fuel w/2 (cell* or 47 resultsbatter*))(abst to spec) contains (integrate* w/3 circuit*) 35 resultsor IC(abst to spec) contains ("light emitting diode" 17 resultsor LED)(abst to spec) contains ("liquid crystal display" 13 resultsor LCD)(abst to spec) contains (("lithium-ion" or 54 results"lithium ion" or "Li-ion" or rechargeable orsecondary) w/2 batter* or cell*) or LIB(abst to spec) contains (memory w/2 (device* 56 resultsor chip* or disk* or drive* or cell*))(abst to spec) contains (solar or photovoltaic* 38 resultsor photoelectric*) w/3 cell*(abst to spec) contains (("thin film" w/2 2 resultstransistor*) or TFT)(abst to spec) contains ("touch-screen" or 12 results"touch screen" or "touchscreen") © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  30. 30. (abst to spec) contains transistor* 78 results(abst to spec) contains ("electric double-layer 24 resultscapacitor" or EDLC or supercapacitor* orsupercondenser* or pseudocapacitor* or"electrochemical double layer capacitor" orultracapacitor*)5. Graphene Nanoribbons Graphene Nanoribbons(abst to spec) contains (graphene w/2 12 resultsnanoribbon* or "nano-graphene ribbon" orGNR or "graphene ribbon")6. Light Polarization Light Polarization(abst to spec) contains (light w/2 polar*) 4 results7. Medical Device Medical Deviceaclm contains ("DNA sequence") 1 result8. Molecular Sensors Molecular Sensors(abst to spec) contains ("molecular sensor" or 1 resultchemosensor or "chemo sensor")9. Spintronics Spintronics(abst to spec) contains (spintronic* or 2 resultsmagnetoelectronic*)10. Thermoplastics Thermoplastics(abst to spec) contains(thermoplastic or 31 results"thermosoftening plastic") and graphene © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  31. 31. Appendix C: Graphene Application Area Patents Lithium-ion Batteries PatentsPatent Number Title Assignees Filing Date Abstract HIGH The present invention is directed to lithium-ion PERFORMANCE batteries in general and more particularly to lithium- BATTERIES WITH ion batteries based on aligned graphene ribbon CARBON anodes V2O5 graphene ribbon composite cathodes NANOMATERIALS ADA and ionic liquid electrolytes. The lithium-ion batteries AND IONIC TECHNOLOGIES have excellent performance metrics of cell voltagesUS20090246625 LIQUIDS INC. 2009-03-26 energy densities and power densities. Provided are electrode layers for use in rechargeable batteries such as lithium ion batteries and related fabrication techniques. These electrode layers have interconnected hollow nanostructures that contain high capacity electrochemically active materials such as silicon tin and germanium. In certain embodiments a fabrication technique involves forming a nanoscale coating around multiple template structures and at least partially removing and/or shrinking these structures to form hollow cavities. These cavities provide space for the active materials of the nanostructures to swell into during battery INTERCONNECTE cycling. This design helps to reduce the risk of D HOLLOW pulverization and to maintain electrical contacts NANOSTRUCTUR among the nanostructures. It also provides a very ES CONTAINING high surface area available ionic communication with HIGH CAPACITY the electrolyte. The nanostructures have nanoscale ACTIVE shells but may be substantially larger in other MATERIALS FOR dimensions. Nanostructures can be interconnected USE IN during forming the nanoscale coating when the RECHARGEABLE coating formed around two nearby templateUS20100330423 BATTERIES AMPRIUS INC. 2010-05-25 structures overlap. METHOD OF DEPOSITING SILICON ON A method of modifying the surface of carbon CARBON materials such as vapor grown carbon nanofibers is MATERIALS AND provided in which silicon is deposited on vapor grown FORMING AN carbon nanofibers using a chemical vapor deposition ANODE FOR USE process. The resulting silicon-carbon alloy may be IN LITHIUM ION APPLIED used as an anode in a rechargeable lithium ionUS20080261116 BATTERIES SCIENCES INC. 2008-04-22 battery. Nanocomposite materials comprising a metal oxide bonded to at least one graphene material. The Nanocomposite of nanocomposite materials exhibit a specific capacity of graphene and BATTELLE at least twice that of the metal oxide material without metal oxide MEMORIAL the graphene at a charge/discharge rate greater thanUS20100081057 materials INSTITUTE 2009-07-27 about 10C. Nanocomposite materials having at least two layers each layer consisting of one metal oxide bonded to at Self assembled least one graphene layer were developed. The multi-layer nanocomposite materials will typically have many nanocomposite of alternating layers of metal oxides and graphene graphene and BATTELLE layers bonded in a sandwich type construction and metal oxide MEMORIAL will be incorporated into an electrochemical or energyUS20110033746 materials INSTITUTE 2009-08-10 storage device. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  32. 32. The invention relates to a lithium ion battery conducting material and a preparation method and application thereof. A graphene lithium ion battery conducting material is prepared by adopting a graphite oxide rapid heat expansion method and has high aspect ratio which is beneficial to shortening the migration distance of lithium ions and improving the wetting quality of an electrolyte thereby the rate performance of an electrode is improved; the graphene lithium ion battery conducting material also has high conductivity and can ensure that an electrode active substance has higher utilization ratio and excellent cyclical stability. Compared with a common acetylene black conductive agent under the same using amount the specific capacity of a lithium ion battery cathode constructed by the conducting Lithium ion battery material is improved by 25-40 percent and the conducting material BEIJING coulomb efficiency is improved by 10-15 percent. In and preparation UNIVERSITY OF addition the method has low cost simple process method and CHEMICAL high security and low energy consumption and isCN101728535 application thereof TECHNOLOGY 10/30/2009 suitable for large-scale production. Nanocomposits of conductive nanoparticulate polymer and electronically active material in particular PEDOT and LiFePO4 were found to be significantly better compared to bare and carbon coated LiFePO4 in carbon black and graphite filled non conducting binder. The conductive polymer containing composite outperformed the other two samples. The performance of PEDOT composite was especially better in the high current regime with capacity retention of 82 percent after 200 cycles. Hence an electrode based on composite made of conductive nanoparticulate polymer and Open porous electronically active material in particular LiFePO4 electrically and PEDOT nanostubs with its higher energy density conductive BELENOS and increased resistance to harsh charging regimes nanocomposite CLEAN POWER proved to dramatically extend the high powerUS20100233538 material HOLDING AG 2010-03-11 applicability of materials such as LiFePO4. Disclosed is a method for producing colloidal graphene dispersions comprising the steps of (i) dispersing graphite oxide in a dispersion medium to form a colloidal graphene oxide or multi-graphene oxide dispersion (ii) thermally reducing the graphene oxide or multi-graphene oxide in dispersion. STABLE Dependent on the method used for the preparation of DISPERSIONS OF the starting dispersion a graphene or a multi- SINGLE AND graphene dispersion is obtained that can be further MULTIPLE processed to multi-graphene with larger inter-planar GRAPHENE BELENOS distances than graphite. Such dispersions and multi- LAYERS IN CLEAN POWER graphenes are for example suitable materials in theUS20100301279 SOLUTION HOLDING AG 2010-05-26 manufacturing of rechargeable lithium ion batteries. The method described allows the selection and/or design of anode and cathode materials by n- or p- NEW ELECTRODE doping semiconductor material. Such doped MATERIALS IN materials are suitable for use in electrodes of lithium PARTICULAR FOR ion batteries. As one advantage the anode and the RECHARGEABLE BELENOS cathode may be produced using anodes and LITHIUM ION CLEAN POWER cathodes that are derived from the sameUS20110020706 BATTERIES HOLDING AG 2010-07-22 semiconductor material. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  33. 33. A carbonaceous particle is provided which comprises a hexagonal flake formed of an aggregate of a plurality of nanocarbons and having a side length of 0.1 to 100 mm and a thickness of 10 nm to 1 mm. Thereby a carbonaceous particle is provided which Flaky has an excellent electron emission performance has carbonaceous a high electron conductivity shows excellent particle and characteristics particularly when used for a secondary production method battery and can suitably be applied to variousUS7442358 thereof CANON INC. 2005-04-25 devices other than a secondary battery as well. A method of making an electron-emitting device has the steps of disposing a film containing metal on a substrate arranging a plurality of catalytic particles on the film containing metal and heat-treating the substrate on which the plurality of catalytic particles are arranged under circumstance including Electronic device hydrocarbon gas and hydrogen to form a plurality of having catalyst carbon fibers. Catalytic particles contain Pd and at used to form least one element selected from the group consisting carbon fiber of Fe Co Ni Y Rh Pt La Ce Pr Nd Gd Tb Dy according to Ho Er and Lu and 2080 atm percent (atomic Raman spectrum percentage) or more of the at least one element isUS7819718 characteristics CANON INC. 2005-12-13 contained in the catalytic particles relative to Pd. The invention discloses an electrode plate for a lithium ion battery and a manufacturing method thereof and particularly relates to the electrode plate for the lithium ion battery taking multi-layer graphene as a conductive agent and a manufacturing method thereof. The electrode plate of the invention consists of a positive electrode or negative electrode active substance the conductive agent and an adhesive. The method comprises the steps of: using the positive electrode or negative electrode active substance the conductive agent and the adhesive as raw materials to obtain electrode slurry through stirring and dispersing and then obtaining the electrode plate through coating drying and tabletting. The conductive agent adopted by the invention has the advantages of high dispersivity high electric conductivity good filling effect and the like; and the method has the advantages of simplicity low production cost and convenient popularization and application. The method can remarkably improve the electric conductivity electrochemical capacity and Electrode plate for enhance charge-discharge capability of electrode lithium ion battery materials by multiples so the method can be widely and manufacturing CHONGQING applied to the preparation of electrode plates ofCN101710619 method thereof UNIVERSITY 2009-12-14 lithium ion batteries. The invention relates to a method for preparing poly organic polysulfide/graphene conductive composite material which is characterized by taking water- soluble sulfonated graphene as a carrier and Method for adopting an in-situ oxidation polymerization method preparing poly to deposit poly organic polysulfide on the surface of organic the grapheme so as to prepare the poly organic polysulfide/sulfonat EAST CHINA polysulfide/graphene conductive composite material. ed graphene UNIVERSITY OF The composite material has high conductivity and conductive SCIENCE AND excellent electrochemical properties and can be usedCN101728534 composite material TECHNOLOGY 2009-12-24 as anode material of lithium secondary batteries. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  34. 34. To provide a negative electrode active material for an electricity storage device which has considerably enhanced low-temperature characteristic increased energy density and increased output power. A NEGATIVE negative electrode active material is made of a ELECTRODE carbon composite containing carbon particles as a ACTIVE core and a fibrous carbon having a graphene MATERIAL FOR structure which is formed on the surfaces and/or the AN ELECTRICITY inside of the carbon particles wherein the carbon STORAGE composite has a volume of all mesopores within DEVICE AND 0.005 to 1.0 cm3/g and a volume of the mesopores METHOD FOR FUJI HEAVY each with a pore diameter ranging from 100 to 400 MANUFACTURING INDUSTRIES Sof not less than 25 percent of the volume of allUS20080220329 THE SAME LTD. 2007-08-31 mesopores. According to this method a polyelectrolyte solution appropriate for the formation of the hair-like structure on the surface of the carbon particles is prepared by dissolving 0.1 to 10 g of the polyelectrolyte chosen from proteins cellulose derivatives gums or mixtures thereof in 1L of deionised water under moderate stirring at a temperature of 30 to 100 DEG C; and then 1 to 10 g carbon particles comprising graphenic layers said particles of having dimensions of 1 to 50 mu m and a specific surface of 2 to 50 m- 2g-1 are mixed under stirring into 1L of the above- obtained solution preheated to about room temperature kept for 2 to 30 minutes and modified to a pH value of 7 to 9 followed by the filtration through a Nutsch filter; and coating the black cake from the Nutsch filter on a copper sheet and further processing A METHOD FOR in a conventional manner into an anode for lithium ion PREPARING A GABER and batteries. the novel method avoids the use of CARBON ANODE SCARON,KEMIJS conventional binders and yields carbon anodes FOR LITHIUM ION KI IN and possessing superior properties for the use in lithiumWO0129916 BATTERIES SCARON 2000-10-06 ion batteries. An intercalation electrode includes an electron current collector and graphene planes deposited normal to the surface of the current collector substrate. The graphene planes are deposited on the current collector substrate from a carbon-precursor gas using for example chemical vapor deposition. In an embodiment of an anode for a lithium-ion battery the graphene planes are intercalated with lithium atoms. A lithium-ion battery may include this anode a Intercalation GM GLOBAL cathode and a non-aqueous electrolyte. In repeated Electrode Based on TECHNOLOGY charging and discharging of the anode lithium atoms Ordered Graphene OPERATIONS and ions are readily transported between theUS20090325071 Planes INC. 2008-05-20 graphene planes of the anode and the electrolyte. The invention relates to a graphene composite lithium ion battery anode material lithium iron phosphate and a preparation method thereof. The composite material of lithium iron phosphate and graphene is connected by interface of chemical bonding. The Graphite composite invention also provides the method for preparing the lithium ion battery graphene composite lithium ion battery anode anode material material lithium iron phosphate in an in-situ symbiosis lithium iron reaction mode and the obtained anode material has phosphate and high tap density and good magnifying performance preparation method and is suitable to be used as a anode material of aCN101562248 thereof GONG SIYUAN 2009-06-03 lithium ion power battery. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  35. 35. An electrode material for a secondary battery has a carbon fiber. This carbon fiber has a coaxial stacking morphology of truncated conical tubular graphene layers wherein each of the truncated conical tubular graphene layers includes a hexagonal carbon layer and has a large ring end at one end and a small ring end at the other end in an axial direction. The Electrode material hexagonal carbon layers are exposed on at least a for lithium part of the large ring ends. Such an electrode secondary battery material for a secondary battery excels in lifetime and lithium performance has a large electric energy density secondary battery GSI CREOS enables an increase in capacity and excels inUS20020182505 using the same CORP 2002-03-18 conductivity and electrode reinforcement. A carbon fiber has a coaxial stacking morphology of truncated conical tubular graphene layers wherein each of the truncated conical tubular graphene layers includes a hexagonal carbon layer and has a large ring end at one end and a small ring end at the other end in an axial direction. The hexagonal carbon layers are exposed on at least a part of the large ring ends. Part of carbon atoms of the hexagonal carbon layers are replaced with boron atoms whereby Carbon fiber projections with the boron atoms at the top are electrode material formed. An electrode material for a secondary battery for lithium using the carbon fiber excels in lifetime performance secondary battery has a large electric energy density enables an and lithium GSI CREOS increase in capacity and excels in conductivity andUS6881521 secondary battery CORP 2002-03-18 electrode reinforcement. A lithium secondary battery comprising a positive electrode a negative electrode comprising a carbonaceous material which is capable of absorbing and desorbing lithium ions and a non-aqueous electrolyte disposed between the negative electrode and the positive electrode. The carbonaceous material comprises a graphite crystal structure having an interplanar spacing d002 of at least 0.400 nm (preferably at least 0.55 nm) as determined from a (002) reflection peak in powder X-ray diffraction. This GUO larger interplanar spacing implies a larger interstitial JIUSHENG,JANG space between two graphene planes to Carbon anode BOR Z,SHI accommodate a greater amount of lithium. The compositions for JINJUN,ZHAMU battery exhibits an exceptional specific capacityUS20090047579 lithium ion batteries ARUNA 2007-08-17 excellent reversible capacity and long cycle life. The invention relates to a lithium manganese phosphate/carbon nanocomposite as cathode material for rechargeable electrochemical cells with the general formula LixMnyM1-y(PO4)z/C where M is at least one other metal such as Fe Ni Co Cr V Mg LITHIUM Ca Al B Zn Cu Nb Ti Zr La Ce Y x 0.8-1.1 y MANGANESE 0.5-1.0 0.9z1.1 with a carbon content of 0.5 to 20 PHOSPHATE/CAR percent by weight characterized by the fact that it is BON obtained by milling of suitable precursors of NANOCOMPOSIT LixMnyM1-y(PO4)Z with electro-conductive carbon ES AS CATHODE black having a specific surface area of at least 80 ACTIVE m2/g or with graphite having a specific surface area MATERIALS FOR of at least 9.5 m2/g or with activated carbon having a SECONDARY specific surface area of at least 200 m2/g. The LITHIUM HIGH POWER invention also concerns a process for manufacturingUS20110012067 BATTERIES LITHIUM S.A. 2009-04-14 said nanocomposite. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  36. 36. A composite composition for electrochemical cell electrode applications the composition comprising multiple solid particles wherein (a) a solid particle is composed of graphene platelets dispersed in or bonded by a first matrix or binder material wherein the graphene platelets are not obtained from graphitization of the first binder or matrix material; (b) the graphene platelets have a length or width in the range of 10 nm to 10 mum; (c) the multiple solid particles are bonded by a second binder material; and (d) the first or second binder material is selected from a polymer polymeric carbon amorphous carbon metal glass ceramic oxide organic material or a combination thereof. For a lithium ion battery anode application the first binder or matrix material is preferably amorphous carbon or polymeric carbon. Such a composite composition provides a high anode Graphene capacity and good cycling response. For a nanocomposites for JANG BOR Z,SHI supercapacitor electrode application the solid electrochemical cell JINJUN,ZHAMU particles preferably have meso-scale pores therein toUS20100021819 electrodes ARUNA 2008-07-28 accommodate electrolyte. A solid nanocomposite particle composition for lithium metal or lithium ion battery electrode applications. The composition comprises: (A) an electrode active material in a form of fine particles rods wires fibers or tubes with a dimension smaller than 1 micro m; (B) nano graphene platelets (NGPs); and (C) a protective matrix material reinforced by the NGPs; wherein the graphene platelets and the electrode active material are dispersed in the matrix material and the NGPs occupy a weight fraction wg of 1 percent to 90 percent of the total nanocomposite weight the electrode active material occupies a weight fraction wa of 1 percent to 90 percent of the total nanocomposite weight and the matrix material occupies a weight fraction wm of at least 2 percent of the total nanocomposite weight with wg+wa+wm 1. For a lithium ion battery anode application the matrix material is preferably amorphous carbon polymeric Nano graphene carbon or meso-phase carbon. Such a solid reinforced nanocomposite composition provides a high anode nanocomposite JANG BOR Z,SHI capacity and good cycling stability. For a cathode particles for lithium JINJUN,ZHAMU application the resulting lithium metal or lithium ionUS20100143798 battery electrodes ARUNA 2008-12-04 battery exhibits an exceptionally high cycle life. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  37. 37. A process for producing solid nanocomposite particles for lithium metal or lithium ion battery electrode applications is provided. In one preferred embodiment the process comprises: (A) Preparing an electrode active material in a form of fine particles rods wires fibers or tubes with a dimension smaller than 1 micro m; (B) Preparing separated or isolated nano graphene platelets with a thickness less than 50 nm; (C) Dispersing the nano graphene platelets and the electrode active material in a precursor fluid medium to form a suspension wherein the fluid medium contains a precursor matrix material dispersed or dissolved therein; and (D) Converting the suspension to the solid nanocomposite particles wherein the precursor matrix material is converted into a protective matrix material reinforced by the nano graphene platelets and the electrode active material is substantially dispersed in the protective matrix material. For a lithium ion battery anode Process for application the matrix material is preferably producing nano amorphous carbon polymeric carbon or meso-phase graphene carbon. Such solid nanocomposite particles provide a reinforced high anode capacity and good cycling stability. For a composite particles JANG BOR Z,SHI cathode application the resulting lithium metal or for lithium battery JINJUN,ZHAMU lithium ion battery exhibits an exceptionally high cycleUS20100176337 electrodes ARUNA 2009-01-13 life. This invention provides a process for producing a lithium secondary battery. The process comprises: (a) providing a positive electrode; (b) providing a negative electrode comprising a carbonaceous material capable of absorbing and desorbing lithium ions wherein the carbonaceous material is obtained by chemically or electrochemically treating a laminar graphite material to form a graphite crystal structure having an interplanar spacing d002 of at least 0.400 nm as determined from a (002) reflection peak in powder X-ray diffraction; and (c) providing a non- aqueous electrolyte disposed between the negative electrode and the positive electrode to form the battery structure. This larger interplanar spacing (greater than 0.400 nm preferably no less than 0.55 Process for nm) implies a larger interstitial space between two producing carbon graphene planes to accommodate a greater amount anode of lithium. The resulting battery exhibits an compositions for JANG BOR exceptionally high specific capacity an excellentUS20090090640 lithium ion batteries Z,ZHAMU ARUNA 2007-10-05 reversible capacity and a long cycle life. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com
  38. 38. This invention provides a mixed nano-filament composition for use as an electrochemical cell electrode. The composition comprises: (a) an aggregate of nanometer-scaled electrically conductive filaments that are substantially interconnected intersected or percolated to form a porous electrically conductive filament network wherein the filaments have a length and a diameter or thickness with the diameter/thickness less than 500 nm (preferably 100 nm) and a length-to-diameter or length-to-thickness aspect ratio greater than 10; and (b) Multiple nanometer-scaled electro-active filaments comprising an electro-active material capable of absorbing and desorbing lithium ions wherein the electro-active filaments have a diameter or thickness less than 500 nm (preferably 100 nm). The electro-active filaments (e.g. nanowires) and the electrically conductive filaments (e.g. carbon nano fibers) are mixed to form a mat- web- or porous paper-like structure in which at least an electro-active filament is in electrical contact with at least an electrically conductive filament. Also provided is a Mixed nano- lithium ion battery comprising such an electrode as filament electrode an anode or cathode or both. The battery exhibits an materials for lithium JANG BOR exceptionally high specific capacity an excellentUS20090176159 ion batteries Z,ZHAMU ARUNA 2008-01-09 reversible capacity and a long cycle life. This invention provides a hybrid nano-filament composition for use as a cathode active material. The composition comprises (a) an aggregate of nanometer-scaled electrically conductive filaments that are substantially interconnected intersected or percolated to form a porous electrically conductive filament network wherein the filaments have a length and a diameter or thickness with the diameter or thickness being less than 500 nm; and (b) micron- or nanometer-scaled coating that is deposited on a surface of the filaments wherein the coating comprises a cathode active material capable of absorbing and desorbing lithium ions and the coating has a thickness less than 10 mum preferably less than 1 mum and more preferably less than 500 nm. Also provided is a lithium metal battery or lithium ion battery that comprises such a cathode. Preferably Hybrid nano- the battery includes an anode that is manufactured filament cathode according to a similar hybrid nano filament approach. compositions for The battery exhibits an exceptionally high specific lithium metal or JANG BOR capacity an excellent reversible capacity and a longUS20090186276 lithium ion batteries Z,ZHAMU ARUNA 2008-01-18 cycle life. A method of producing a lithium-ion battery anode comprising: (a) providing an anode active material; (b) intercalating or absorbing a desired amount of lithium into this anode active material to produce a prelithiated anode active material; (c) comminuting the prelithiated anode active material into fine particles with an average size less than 10 micro m (preferably sub-micron and more preferably 200 nm); and (d) combining multiple fine particles of Method of prelithiated anode active material with a conductive producing additive and/or a binder material to form the anode. prelithiated anodes The battery featuring such an anode exhibits an for secondary JANG BOR exceptionally high specific capacity an excellentUS20100120179 lithium ion batteries Z,ZHAMU ARUNA 2008-11-13 reversible capacity and a long cycle life. © 2011 Gridlogics. All Rights Reserved. Patent iNSIGHT Pro™ is a trademark of Gridlogics Technologies Pvt. Ltd. Feedbacks and Comments on this report can be sent to feedback_tr@patentinsightpro.com

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