Journal
JOURNAL OF POWER SOURCES
Volume 92, Issue 1-2, Pages 255-259Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-7753(00)00546-2
Keywords
polymer electrolytes; lithium battery; PEO; photocuring; acrylate
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A solid polymer electrolyte (SPE) based on polyethylene oxide (PEO) is prepared by photocuring of polyethylene glycol acrylates. The conductivity is greatly enhanced by adding low molecular weight poly(ethylene glycol) dimethylether (PEGDME). The maximum conducticity is 5.1 x 10(-4) S cm(-1) at 30 degreesC, These electrolytes display oxidation stability up to 4.5 V against a lithium reference electrode. Reversible electrochemical plating/stripping of lithium is observed on a stainless steel electrode. Li/SPE/LiMn(2)O(4) as well as C(Li)/SPE/LiCoO(2) cells have been fabricated and tested to demonstrate the applicability of the resulting polymer electrolytes in lithium-polymer batteries. (C) 2001 Elsevier Science B.V. All rights reserved.
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