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Novel Elastomeric Membranes Developed for Polymer Electrolytes in Lithium BatteriesLithium-based polymer batteries for aerospace applications need to be highly conductive from -70 to 70 C. State-of-the-art polymer electrolytes are based on polyethylene oxide (PEO) because of the ability of its ether linkages to solvate lithium ions. Unfortunately, PEO has a tendency to form crystalline regions below 60 C, dramatically lowering conductivity below this temperature. PEO has acceptable ionic conductivities (10(exp -4) to 10(exp -3) S/cm) above 60 C, but it is not mechanically strong. The room-temperature conductivity of PEO can be increased by adding solvent or plasticizers, but this comes at the expense of thermal and mechanical stability. One of NASA Glenn Research Center s objectives in the Polymer Rechargeable System program (PERS) is to develop novel polymer electrolytes that are highly conductive at and below room temperature without added solvents or plasticizers.
Document ID
Document Type
Tigelaar, Dean M.
(NASA Glenn Research Center Cleveland, OH, United States)
Meador, Maryann B.
(NASA Glenn Research Center Cleveland, OH, United States)
Kinder, James D.
(NASA Glenn Research Center Cleveland, OH, United States)
Bennett, William R.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
June 1, 2005
Publication Information
Publication: Research and Technology 2004
Subject Category
Energy Production And Conversion
Distribution Limits
Work of the US Gov. Public Use Permitted.
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