High temperature lithium cells with solid polymer electrolytes

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.

Inventors:: Yang, Jin; Eitouni, Hany Basam; Singh, Mohit

Issue Date:: 2017-03-07

OSTI Identifier:: 1346001

Assignee:: Seeo, Inc. NETL

Patent Number(s):: 9,590,268

Application Number:: 13/698,665

Contract Number:: OE0000223

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

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