Stable charge/discharge of Li at a graphitized carbon fiber electrode in apure PC electrolyte and the initial charging loss

Citation
K. Yamaguchi et al., Stable charge/discharge of Li at a graphitized carbon fiber electrode in apure PC electrolyte and the initial charging loss, J POWER SOU, 97-8, 2001, pp. 159-164
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics","Environmental Engineering & Energy
Journal title
JOURNAL OF POWER SOURCES
ISSN journal
0378-7753 → ACNP
Volume
97-8
Year of publication
2001
Pages
159 - 164
Database
ISI
SICI code
0378-7753(200107)97-8:<159:SCOLAA>2.0.ZU;2-4
Abstract
Highly graphitized carbon is the most widely utilized anode material for Li -ion secondary batteries because of its high reversibility and reliability. However, it has so far been believed that well graphitized carbon material gives no stable Li charge/discharge performance in a pure propylene carbon ate (PC)-based electrolyte, since PC decomposes vigorously at the surface o f the graphite during the charging process. Surprisingly, we found that a s ingle graphitized carbon fiber revealed a sufficiently stable performance i n pure PC containing 1 M LiClO4. The initial irreversible charging capacity not only in PC but in an EC-base d electrolyte was found strongly dependent on the conductivity homogeneity of the electrode. (C) 2001 Published by Elsevier Science B.V.