Characteristics of heat treated polyparaphenylene for lithium-ion secondary batteries'

被引：2
|
作者：
Osawa, K
Oshida, K
Nakazawa, T
Nishizawa, T
Ikeda, T
Narita, M
Saito, N
Ito, T
Endo, M
Bonnamy, S
机构：
[1] Nagano Natl Coll Technol, Nagano 3818550, Japan
[2] Shinshu Univ, Nagano 3808553, Japan
[3] Ind Res Inst Nagoya Prefecture, Nagano 3800928, Japan
[4] Univ Orleans, CNRS, Ctr Rech Mat Divisee, F-45071 Orleans 02, France
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2004年 / 65卷 / 2-3期
关键词：
thermogravimetric analysis; electrical properties;
D O I：
10.1016/j.jpcs.2003.11.030
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In order to clarify the mechanism of Li-ions insertion/deinsertion into/from polyparaphenylene (PPP)-based carbons, the PPP carbonization has been analyzed. The weight loss of the PPP carbonized samples increased at a faster rate in the temperature range 600-680 degreesC. Hydrocarbons such as benzene and biphenyl were mainly detected by gas chromotography-mass spectrometry at a temperature of 710 degreesC during thermo-gravimetric analysis of PPP. The microtexture and the structure of heat treated PPP samples were characterized by high resolution transmission electron microscopy and investigated by image processing. The resistivity measurements of heat treated PPP showed a drastic decrease in the 680-730 degreesC HTT range. We related the microtexture evolution, the hydrocarbons release and the resistivity decrease of PPP carbonized samples to Li-ion battery capacity. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：253 / 256
页数：4
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