Accession Number:

ADA179925

Title:

Studies of the Fundamentals of Solid-State Batteries.

Descriptive Note:

Final rept.,

Corporate Author:

EIC LABS INC NORWOOD MA

Report Date:

1987-04-05

Pagination or Media Count:

53.0

Abstract:

Studies of lithiumTitanium Sulfide cells utilizing polybismethoxyethoxyethoxide phosphazene MEEP based polymer electrolytes have demonstrated the excellent potential of this inorganic polymer electrolyte for use in solid-state rechargeable Li batteries of applications at or near room temperature. A major drawback of the MEEP electrolyte has been its lack of dimensional stability, manifested in its tendency to flow. This flow property prevented the preparation of thin film solid electrolytes. A solution to this problem has been found in this program by blending MEEP with polyethylene oxide, PEO, which resulted in novel mixed polymer electrolytes exhibiting superior mechanical stability and high conductivity. We have also developed a technique to fabricate solid-state cells with the pure MEEP electrolyte by supporting it on a thin, porous matrix comprising a fiberglass separator.

Subject Categories:

  • Electrochemical Energy Storage
  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE