Journal
JOURNAL OF POWER SOURCES
Volume 119, Issue -, Pages 448-453Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-7753(03)00189-7
Keywords
polymer electrolytes; lithium battery; PEO; polysiloxane; acrylate
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Poly(siloxanes-g-oligo(ethylene oxide)) with acrylate groups at the terminal position were prepared and examined for the solid polymer electrolyte (SPE) by curing them. Poly(ethylene glycol) dimethyl ether (PEGDME) was added as a plasticizer. Conductivity of the resulting polymer electrolytes was greatly enhanced with increasing amounts of low molecular weight PEGDME. Maximum conductivity was found to be 8 x 10(-4) S/cm at 30 degreesC with an [EO]/[Li] ratio of about 8. These electrolytes showed oxidation stability up to 4.95 V against the lithium reference electrode. Reversible electrochemical plating/stripping of lithium was observed on the nickel electrode. The plating/stripping efficiency of lithium on nickel was measured to be about 53%. (C) 2003 Elsevier Science B.V All rights reserved.
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