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2
EV Battery
Technology,
part 3
EV-210c
This course is presented as part of
Evannex University—a free, open
learning envir...
A look back
the basic elements of an EV battery
the battery production process
the metrics by which we compare one batt...
Is it reasonable to expect lower cost?
Technical advances in the
design and fabrication of
anodes, cathodes and
electroly...
The Battery Landscape
5
Source: Electric
Vehicle Integration
into Modern Power
Networks,
Electric Vehicle
Battery Technolo...
Batteries vs. Gasoline
6
Source: McKinsey&Co from DoE data,
http://www.mckinsey.com/insights/energy_resources_materials/ba...
Battery Research—Components
Graphene and carbon nanotubes for supercapacitors that
would reduce charging time to minutes,...
Battery Research—Chemistry
Lithium-Vanadium-Phosphate (LVP)—faster charging and
longer life expectancy than Li-Ion.
Lith...
Supercapacitors
two carbon electrodes sandwich and electrolyte to
for the super capacitor
thin film, with high power den...
Summary
battery components form cells, organized into modules,
and built as a pack
building higher capacity batteries is...
11
… a free study guide for
all EVU mini-courses is
available for download
from our website …
For a complete list of mini-...
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Electric Vehicle University - 210c EV BATTERY TECHNOLOGY

THE CENTRAL QUESTION ...
Since the battery is pivotal to my EV, what are the core issues that will allow me to understand battery technology?

COURSE ABSTRACT
A discussion of battery components and fabrication approach, the reasons that building higher capacity batteries are constrained by geometry and technological factors, the key characteristics to assess when comparing battery chemistries, and new battery tech that may lead to significant improvements in those characteristics. To obtain a copy of the EVU study guide for this and other available EVU courses, please complete the form on this page.

Course level: Intermediate

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Electric Vehicle University - 210c EV BATTERY TECHNOLOGY

  1. 1. 1
  2. 2. 2 EV Battery Technology, part 3 EV-210c This course is presented as part of Evannex University—a free, open learning environment that presents concise, video-based mini-courses for those who have interest in electric vehicles (EVs) …
  3. 3. A look back the basic elements of an EV battery the battery production process the metrics by which we compare one battery chemistry to another the cost drivers for EV batteries 3
  4. 4. Is it reasonable to expect lower cost? Technical advances in the design and fabrication of anodes, cathodes and electrolytes are likely cell capacity improvements of 40% overall increase in battery capacity by 80 to 110 percent 4 Source: http://theconversation.com/affordable- batteries-for-green-energy-are-closer-than-we-think- 28772
  5. 5. The Battery Landscape 5 Source: Electric Vehicle Integration into Modern Power Networks, Electric Vehicle Battery Technologies (Ch. 2), Young, K. et al, Springer, 2013
  6. 6. Batteries vs. Gasoline 6 Source: McKinsey&Co from DoE data, http://www.mckinsey.com/insights/energy_resources_materials/battery_ technology_charges_ahead
  7. 7. Battery Research—Components Graphene and carbon nanotubes for supercapacitors that would reduce charging time to minutes, rather than hours problem: fabrication and cost problem: relatively low energy density lithium rather than graphite electrodes have the potential to increase capacity by 100 - 300% problem: left cycle and safety concerns super-thin batteries can be spread over then entire vehicle surface problem: early stages 7 Graphene photomicrograph
  8. 8. Battery Research—Chemistry Lithium-Vanadium-Phosphate (LVP)—faster charging and longer life expectancy than Li-Ion. Lithium sulphur—increase energy density by a factor of 4 Lithium air—potential to achieve energy density of gasoline, but is not suitable for the heavy loads of automotive applications, possibly could supplement a Li- Ion battery 8
  9. 9. Supercapacitors two carbon electrodes sandwich and electrolyte to for the super capacitor thin film, with high power density, but lower specific energy able to charge very quickly, very thin (body panel applications) supplement EV battery—does not replace it provides burst of power for acceleration, allowing battery to provide steady state power 9 Source: IEEE Spectrum, http://spectrum.ieee.org/nanoclast/tra nsportation/advanced- cars/graphenebased-supercapacitors- take-another-crack-at-allelectric- vehicles
  10. 10. Summary battery components form cells, organized into modules, and built as a pack building higher capacity batteries is constrained by geometry, weight, and technology six characteristics must be considered when evaluating a battery pack—specific energy, specific power, life span, cost, safety and performance new technology may enable improvements in all six characteristics 10
  11. 11. 11 … a free study guide for all EVU mini-courses is available for download from our website … For a complete list of mini- courses and the study guide, visit: www.evannex.com

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