Fiscal Year:
2007
Title:
Advanced Neutrally Buoyant Rechargeable Batteries Based on Ceramic Electrolyte Separators
Agency / Branch:
DOD / NAVY
Contract:
N00014-07-M-0298
Award Amount:
$69,746.00
Abstract:
A pressure tolerant, neutrally buoyant, high-energy density battery is proposed that utilizes a Li+ conducting, solid-electrolyte separator, LiSICON. The LiSICON ceramic is fabricated using state of the art tape casting methods which allows composite structures of porous and dense layers ~100mm thick. The layered structure increase mechanical strength and decrease interfacial and bulk resistances. The high-energy cathode material, amorphous MnO2 or nano-crystalline LiMn1/3Ni1/3Co1/3O2, allow a predicted energy density >400 Whr/kg for the overall battery. The use of a lightweight lithium metal anode results in a battery with an estimated specific gravity approaching 1. The pressure tolerant battery design allows the case to preferentially deform to compensate for increasing pressure and also accounts for the internal volume change during battery discharge. The solid electrolyte separator prevents lithium dendrites from shorting the battery during recharge significantly increasing the safety margin, inherent in alkali metal batteries.
Small Business Information at Submission:
CERAMATEC, INC.
2425 South 900 West Salt Lake City, UT 84119
EIN/Tax ID:
870322278
DUNS:
N/A
Number of Employees:
Woman-Owned:
No
Minority-Owned:
No
HUBZone-Owned:
No
Research Institution Information:
RUTGERS UNIV.
Dept. of Materials Science
and Engineering
Piscataway,, NJ 8854
Contact:
Jun J. Xu
Contact Phone:
(732) 445-5606
RI Type:
Nonprofit college or university