Nonflammable Lithium-ion Battery Electrolytes Capable of Extended Operational Temperature Ranges

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: F33615-03-M-2378
Agency Tracking Number: F031-0972
Amount: $99,999.00
Phase: Phase I
Program: SBIR
Awards Year: 2003
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
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
Business Contact
 Linda Morrison
Title: Organization Manager
Phone: (781) 938-1140
Research Institution
The U.S. Air Force requires that rechargeable lithium ion (Li-ion) batteries operate at the extremes of a thermal envelope that cannot be met with present-day battery technology. Based on some new materials developed by us and some preliminary resultsobtained with them, we believe that a new family of non-flammable electrolytes may be formulated so as to allow Li-ion battery cycling at temperatures as low as -50¿C and as high as 80¿C with good capacity retention. During Phase I we will synthesize anumber of new salts and formulate them with various solvents. The resulting electrolytes will be characterized in respect to ionic conductivity at various temperatures, electrochemical stability, and flammability. Our best non-flammable electrolyteformulations will be subjected to cycling in Li-ion cells at the aforementioned temperature extremes. The development of a new family of non-flammable electrolytes that allow Li-ion batteries to cycle with good capacity over a 130¿C thermal window willfulfill a broad spectrum of military and civilian power source requirements. In addition to powering weapons systems under climatic extremes, such advanced electrolytes would also enable the development of safer Li-ion batteries for consumer electronicsand hybrid electric vehicle applications.

* information listed above is at the time of submission.

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