Accession Number:

ADA027959

Title:

Sealed Primary Lithium-Inorganic Electrolyte Cell.

Descriptive Note:

Quarterly rept. no. 8, 1 Dec 75-29 Feb 76,

Corporate Author:

MALLORY (P R) AND CO INC BURLINGTON MASS LAB FOR PHYSICAL SCIENCE

Personal Author(s):

• Dey,A. N.

Report Date:

1976-08-01

Pagination or Media Count:

34.0

Abstract:

The main objective of this program is to develop an all-inorganic electrolyte primary D cell which is storable and operable in the temperature range of -40 to 160F and is capable of delivering in excess of 150 WHrslb at thirty hours rate and peak power density of 50 wattslb. The authors showed earlier that the hermetic LiSOCl2 D cell developed by them met all the above objectives. However, the cells suffered from two deficiencies a explosion hazards and b voltage-delay problem. The authors investigated the explosion hazard problem in some detail earlier. At present they are concentrating on the voltage-delay problem. It was demonstrated that the voltage-delay problem was due to a Li anode film formed when Li comes in contact with the LiAlCl4-SOCl2 electrolyte. The Li film growth was studied in the above inorganic electrolyte having various salt concentrations and other additives using Scanning Electron Microscopic SEM Technique. It was found that the Li anode film grows in thickness with an increasing storage temperature and an increasing storage duration.

Descriptors:

• *PRIMARY BATTERIES
• ALUMINUM COMPOUNDS
• FILMS
• VOLTAGE
• CHLORIDES
• STORAGE
• ELECTROLYTES
• LIFE TESTS
• RELIABILITY(ELECTRONICS)
• BATTERY COMPONENTS
• LITHIUM COMPOUNDS
• THIONYL CHLORIDE
• ANODES

Subject Categories:

• Electrochemical Energy Storage

Distribution Statement:

APPROVED FOR PUBLIC RELEASE