presentation on paper batteries

1. presented by
VASUKI.B

2.  WHAT IS A PAPER BATTERY
 WHY PAPER BATTERY
 IMPROVEMENTS
 WORKING
 DURABILITY
 APPLICATIONS
 FUTURE POWER OF PAPER BATTERY
 CONCLUSION

3. A paper battery is a flexible, ultra-thin energy storage and production
device formed by combining carbon nanotube with a conventional sheet of
cellulose-based paper.
A paper battery acts as both a high-energy battery and super-capacitor ,
combining two components that are separate in traditional electronics .
WHAT IS A PAPER BATTERY?

4.  Generally Li-ion re-chargeable batteries are used in mobiles,laptops and
most of the electronic devices.
 3 primary functional component of Li-ion battery are:
1. -ve electrode(graphite)
2. +ve electrode(cobalt oxide)
3.electrolyte( lithium salt in organic solvent)
 During discharge and charging, lithium ions Li+ carry the current from the
negative to the positive electrode and vice-versa respectively, through the
non-aqueous electrolyte .

5. • EXPENSIVE -- 40% more than NiCd.
• DELICATE -- battery temp must be
monitored from within (which raises the
price), and sealed particularly well.
• REGULATIONS -- when shipping Li-Ion
batteries in bulk (which also raises the
price).
Class 9 miscellaneous hazardous material

6.  Ultra-thin size & flexible structure.
 Exhibits property of super-capacitor(22F-36F per gram)
 Operating temper ature(-75 to 100 degree celsius)
 provide both long-term, steady power production and
bursts of energy.
 Cost-effective.

7.  CNT thin films were coated onto stainless steel (SS) substrates with a
solution based process.
 The concentration of CNT is 1.7 mg/mL.
 A dried film with a thickness of 2 micrometer was formed after drying the
CNT ink on the SS substrate at 80 °C for 5 min.This film is then peeled off
from substrate.
 These films act as electrodes of paper battery.
 one film is pasted to electrolyte LTO (Li4Ti5O12) and the other film is
pasted to electrolyte LCO (LiCoO2).
 Paper is sandwiched between two electrolytes LTO and LCO with
PVDF(poly vinylidene fluoride) acting as glue.

11. • The flexible battery can function even if it is rolled up,
folded or cut.
•We can get 2.5 volts of electricity from a sample the
size of a postage stamp.
• "If we stack 500 sheets together in a ream, that's 500
times the voltage. If we rip the paper in half we cut power
by 50%. So we can control the power and voltage issue."
• Because the battery consists mainly of paper and
carbon, it could be used to power pacemakers within the
body where conventional batteries pose a toxic threat.

12.  While a conventional battery contains a number of
separate components, the paper battery integrates all of the
battery components in a single structure, making it more
energy efficient.
 Traditional Batteries produce electrons through a chemical
reaction between electrolyte and metal.
 paper battery produces electrons due to the interaction of
electrolytes LTO & LCO.
 Electrons collect on the negative terminal of the battery
and flow along a connected wire to the positive terminal
during discharging.
 Electrons must flow from the negative to the positive
terminal for the chemical reaction to continue.

14. Paper battery offers future power
The black piece of paper can power a small light.
 Flexible paper batteries could meet the energy demands of
the next generation of gadgets.
The ambition is to produce reams of paper that could one day
power a car.
The paper battery was a glimpse into the future of power storage.

15. .