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Acta Phys. -Chim. Sin.  1998, Vol. 14 Issue (05): 477-480    DOI: 10.3866/PKU.WHXB19980519
Note     
A Simple Method to Evaluate Lithium Insertion Capacity of PPP-based Carbon
Zhou Heng-Hui, Chen Ji-Tao, Ci Yun-Xiang, Liu Chang-Yan
College of Chemistry Molecular Engineering,Peking University,Beijing 100871
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Abstract  

 The method to evaluate the reversible lithium insertion capacity (Qre) has been studied using poly (p-phenylence) (PPP) heat-treated at 550 1000 ℃ in inert gas atomsphere by H/C atomic ratio and FTIR measures. The H/C atomic ratio and Qre decreased with increasing heat-treament temperature. The absorption ratio of 1020cm-1 band to the 1440cm-1 band (Ra) is directly related to the Qre of carbon samples. The samples with R. >1-1 and without 807cm-1 peak tend to have high Qre (>372 mA.h-g-1). The reversible capacity for Li+ ion insertion decrease as Ra decreases.



Key wordsPPP-dericed carbon      Lithium ion cell      Reversible lithium insertion capacity      FTIR     
Received: 26 September 1997      Published: 15 May 1998
Corresponding Authors: Ci Yun-Xiang   
Cite this article:

Zhou Heng-Hui, Chen Ji-Tao, Ci Yun-Xiang, Liu Chang-Yan. A Simple Method to Evaluate Lithium Insertion Capacity of PPP-based Carbon. Acta Phys. -Chim. Sin., 1998, 14(05): 477-480.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB19980519     OR     http://www.whxb.pku.edu.cn/Y1998/V14/I05/477

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