MISC

2003年7月

Preparation of negative electrodes for lithium-ion rechargeable battery by pressure-pulsed chemical vapor infiltration of pyrolytic carbon into electro-conductive forms

JOURNAL OF POWER SOURCES
  • Y Ohzawa
  • ,
  • M Mitani
  • ,
  • T Suzuki
  • ,
  • Gupta, V
  • ,
  • T Nakajima

122
2
開始ページ
153
終了ページ
161
記述言語
英語
掲載種別
DOI
10.1016/S0378-7753(03)00394-X
出版者・発行元
ELSEVIER SCIENCE BV

The plate-type negative electrodes for lithium-ion rechargeable battery were prepared by pressure-pulsed chemical vapor infiltration of pyrolytic carbon (pyrocarbon) into two sorts of conductive porous forms, that is, the carbonized paper (A) and the TiN-coated paper (B), as the conductive fillers and/or current collectors. The electrodes had the three-dimensionally continuous current paths in the pyrocarbon-based anodes without the organic binders and the additional conductive filters. The pyrocarbon in sample (A) had the relatively high crystallinity, whereas the pyrocarbon in sample (B) was disordered. Sample (B) possessed higher surface area and larger pore volume with mesopores per mass of of 1.5-10 nm. especially below 3 nm, than that of sample (A). The capacity of pyrocarbon in sample (B) was 460 mA h g(-1) pyrocarbon at a current density of 25 mA g(-1), reflecting the disordered microstructure of pyrocarbon film. And 80% of the capacity was maintained even at 1000 mA g(-1). The capacity of pyrocarbon in sample (A) was estimated at similar to300 mA h g(-1), which was lower than that of sample (B). However, sample (A) showed higher Coulombic efficiency at first cycle (i.e. 85%) than that of sample (B), which would result from the high crystallinity, laminar microstructure and low surface area of pyrocarbon in sample (A). (C) 2003 Elsevier Science B.V. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/S0378-7753(03)00394-X
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000184364400006&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/S0378-7753(03)00394-X
  • ISSN : 0378-7753
  • Web of Science ID : WOS:000184364400006

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