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High Energy Density Rechargeable Lithium Sulfur Battery
with Novel Solid Electrolyte--US Nanocorp, Inc, 74 Batterson Park Road,
Farmington, CT 06032-2500; 860-678-7561,
www.inframat.com
Dr. John Broadhead, Principal Investigator,
jbroadhead@usnanocorp.com
Dr. David E. Reisner, Business Official, dreisner@usnanocorp.com
DOE Grant No. DE-FG02-03ER83814
Amount: $100,000
Batteries for electric vehicles (EVs) require very
high-energy-density capability while hybrid electric vehicles (HEVs) require
devices that can deliver high power pulses.
Both types of batteries must be capable of accepting high power recharge
pulses from regenerative braking. To
attain these requirements, batteries with energy densities of 200 Wh/kg and
power densities of 400 W/kg are needed. This
project will develop a lithium sulfur system to provide the high energy density
required for vehicle traction. To
attain this high energy density, high conductivity thio-LISICON (2.2 x 10-3
S/cm, a lithium ion conducting solid electrolyte) will be plasma sprayed with a
thin film sulfur/carbon/thio-LISICON cathode composite and a thin film lithium
anode. In Phase I, plasma sprayed
thio-LISICON will be fabricated on a sulfur/carbon/thio-LISICON cathode, and a
lithium anode will be used to complete the cell.
A 0.2 Ah cell will be constructed in a flexible cell package for
performance evaluation, life tests will be conducted, and a sample will be
provided to DOE.
Commercial
Applications and Other Benefits as described by awardee:
In addition to the application for electric and
hybrid electric vehicles, other applications for the technology could include
ultrawideband (UWB) short range transmission, watchphones, micro-aerial vehicles
(MAVs), and biosensors for Homeland Security.