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Title: High temperature lithium cells with solid polymer electrolytes

Electrochemical cells that use electrolytes made from new polymer compositions based on poly(2,6-dimethyl-1,4-phenylene oxide) and other high-softening-temperature polymers are disclosed. These materials have a microphase domain structure that has an ionically-conductive phase and a phase with good mechanical strength and a high softening temperature. In one arrangement, the structural block has a softening temperature of about 210.degree. C. These materials can be made with either homopolymers or with block copolymers. Such electrochemical cells can operate safely at higher temperatures than have been possible before, especially in lithium cells. The ionic conductivity of the electrolytes increases with increasing temperature.
Authors:
; ;
Publication Date:
OSTI Identifier:
1346001
Report Number(s):
9,590,268
13/698,665
DOE Contract Number:
OE0000223
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 May 19
Research Org:
Seeo, Inc., Hayward, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE