Lithium-ion Battery Electrolytes Capable of Extended Operational Temperature Ranges

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-04-C-2489
Agency Tracking Number: F031-0972
Amount: $750,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: AF03-162
Solicitation Number: 2003.1
Small Business Information
COVALENT ASSOC., INC.
10 State Street, Woburn, MA, 01801
DUNS: 040191686
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Victor Koch
 (781) 938-1140
 koch@covalentassociates.com
Business Contact
 Linda Morrison
Phone: (781) 938-1140
Email: morrison@covalentassociates.com
Research Institution
N/A
Abstract
The U.S. Air Force requires lithium-ion batteries operating at the extremes of a thermal envelope that cannot be met with commercially available electrolyte technology. Based upon our Phase I results several novel electrolyte formulations were developed that were shown to enable Li-ion cell cycling at temperatures as low as -50°C to as high as 80°C with good capacity retention. During Phase II, the new electrolyte formulations will be demonstrated in spiral wound Li-ion cell hardware. The spiral wound cells will be subjected to cycling at various rates and temperatures, and will also be evaluated under conditions of abuse.

* information listed above is at the time of submission.

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