Novel Electrolytes for -100°C Lithium Battery Applications

Award Information
Agency:
National Aeronautics and Space Administration
Amount:
$70,000.00
Program:
SBIR
Contract:
NNJ06JD72C
Solitcitation Year:
2005
Solicitation Number:
N/A
Branch:
N/A
Award Year:
2006
Phase:
Phase I
Agency Tracking Number:
053376
Solicitation Topic Code:
X3.02
Small Business Information
Covalent Assoc., Inc.
10 State St, Woburn, MA, 08101-6820
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
040191686
Principal Investigator
 Konstantin Tikhonov
 Principal Investigator
 (781) 938-1140
 tikhonov@covalentassociates.com
Business Contact
 Linda Morrison
Title: Business Official
Phone: (781) 938-1140
Email: morrison@covalentassociates.com
Research Institution
N/A
Abstract
NASA requires advanced high power primary lithium batteries for ultra low temperature applications. The key component that limits the performance at low temperature is the battery electrolyte. Proof-of-concept experiments have shown that Covalent's new non-aqueous electrolyte formulations greatly enhance low temperature primary battery performance while preserving its long shelf life. At temperatures as low as -100oC, our new electrolyte demonstrates superior transport properties due to minimal triple ion formation. Accelerated storage tests revealed no voltage delay indicative of a stable passive film formed on the lithium anode. When coupled with a high energy density cathode material such as carbon monofluoride (CFx), our new electrolyte formulations will enable primary lithium primary performance over a broad spectrum of ultra low temperature applications. Specifically, Li/CFx batteries incorporating the new Covalent electrolytes will deliver more than 30% of their room temperature capacity at temperatures as low as -100oC at practical discharge rates.

* information listed above is at the time of submission.

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