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
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- 巻
- 122
- 号
- 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
- ID情報
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- DOI : 10.1016/S0378-7753(03)00394-X
- ISSN : 0378-7753
- Web of Science ID : WOS:000184364400006