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Solid electrolytes

Patent ·
OSTI ID:868816
 [1];  [2]
  1. Needham, MA
  2. Dedham, MA
+ Show Author Affiliations
This invention pertains to Li ion (Li.sup.+) conductive solid polymer electrolytes composed of solvates of Li salts immobilized (encapsulated) in a solid organic polymer matrix. In particular, this invention relates to solid polymer electrolytes derived by immobilizing complexes (solvates) formed between a Li salt such as LiAsF.sub.6, LiCF.sub.3 SO.sub.3 or LiClO.sub.4 and a mixture of aprotic organic solvents having high dielectric constants such as ethylene carbonate (EC) (dielectric constant=89.6) and propylene carbonate (PC) (dielectric constant=64.4) in a polymer matrix such as polyacrylonitrile, poly(tetraethylene glycol diacrylate), or poly(vinyl pyrrolidinone).
Research Organization:
ADVANCED FUEL RESEARCH INC
DOE Contract Number:
AC01-89ER80813
Assignee:
EIC Laboratories, Inc. (Norwood, MA)
Patent Number(s):
US 5219679
Application Number:
07/642,605
OSTI ID:
868816
Country of Publication:
United States
Language:
English

References (4)

Electrochemical characterization of a class of low temperature conducting polymer electrolytes journal May 1989
Ionic conductivity of hybrid films composed of polyacrylonitrile, ethylene carbonate, and LiClO4 journal June 1983
Polyphosphazene solid electrolytes journal October 1984
Performance of polymer electrolyte cells at +25 to +100°C journal January 1988

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