Journal
JOURNAL OF POWER SOURCES
Volume 112, Issue 2, Pages 577-582Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-7753(02)00465-2
Keywords
Li-ion polymer battery; gel electrolyte; poly(acrylonitrile); thermal stability; lithium nickel dioxide; mesocarbon microbeads
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The practical performances and thermal stability of Li-ion polymer batteries with LiNi0.8Co0.2O2, mesocarbon microbead-based graphite, and poly(acrylonitrile) (PAN)-based gel electrolytes are reported. The gel electrolyte, which shows a fire-retardance by itself as well as good chemical stability effectively improved thermal stability of the Li-ion polymer battery up to 170 degreesC. We also found that the mesocarbon microbead-based graphite showed better coulombic efficiency even though the gel electrolyte contained PC and GBL. An evaluation of cell performances showed that the electrodes and the gel electrolyte were promising material for a next-generation Li-ion polymer battery. (C) 2002 Elsevier Science B.V. All rights reserved.
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