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THERMALLY STABLE ELECTROLYTES FOR RECHARGEABLE LITHIUM BATTERIES

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
1762
Program Year/Program:
1986 / SBIR
Agency Tracking Number:
1762
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
COVALENT ASSOC., INC.
541 NW 11th Street Corvallis, OR 97330 6018
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1986
Title: THERMALLY STABLE ELECTROLYTES FOR RECHARGEABLE LITHIUM BATTERIES
Agency: NASA
Contract: N/A
Award Amount: $499,264.00
 

Abstract:

THE KEY PROBLEM INHIBITING THE DEVELOPMENT OF HIGH ENERGY RECHARGEABLE LI BATTERIES IS THE POOR CYCLEABILITY OF THE LI ELECTRODE. ALTHOUGH MAJOR ADVANCES IN THIS TECHNOLOGY HAVE BEEN MADE OVER THE LAST FIVE YEARS, SIGNIFICANT IMPROVEMENTS IN CONTROLLING LI-ELECTROLYTE REACTIVITY ARE STILL REQUIRED. SOLVENTS SUCH AS 2-METHYLTETRAHYDROFURAN, 2-METHYLFURAN, AND 3-METHYLSULFOLAN, ARE KNOWN TO BE STABLE TOWARD LI. HOWEVER, ALL OF THESE SOLVENTS MUST EMPLOY LIASF6 AS A SUPPORTING ELECTROLYTE TO ACHIEVE LI ELECTRODE CYCLING EFFICIENCIES IN EXCESS OF 98%. THIS SALT IS THERMALLY UNSTABLE IN PROTOTYPE BATTERIES, WHICH GREATLY LIMITS THE APPLICABILITY OF RECHARGEABLE LI TECHNOLOGY. THIS PROBLEM WILL BE ADDRESSED BY SYNTHESIZING AND PURIFYING SEVERAL NEW LI SALTS FOR EVALUATION IN SEVERAL ORGANIC SOLVENTS. THESE NEW ELECTROLYTES WILL UNDERGO A VARIETY OF PHYSICAL, CHEMICAL, AND ELECTROCHEMICAL TESTS SO AS TO ASSESS THE FEASIBILITY OF THEIR USE IN RECHARGEABLE LI BATTERIES.

Principal Investigator:

Victor R. Koch
Investigator
0

Business Contact:

Small Business Information at Submission:

Covalent Associates Inc.
52 Dragon Court Woburn, MA 01801

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No