引用本文:
周恒辉, 陈继涛, 慈云祥, 刘昌炎. 判断聚对苯基热解碳嵌锂容量的简单方法[J]. 物理化学学报,
1998, 14(05): 477-480.
doi:
10.3866/PKU.WHXB19980519
Citation: Zhou Heng-Hui, Chen Ji-Tao, Ci Yun-Xiang, Liu Chang-Yan. A Simple Method to Evaluate Lithium Insertion Capacity of PPP-based Carbon[J]. Acta Physico-Chimica Sinica, 1998, 14(05): 477-480. doi: 10.3866/PKU.WHXB19980519
Citation: Zhou Heng-Hui, Chen Ji-Tao, Ci Yun-Xiang, Liu Chang-Yan. A Simple Method to Evaluate Lithium Insertion Capacity of PPP-based Carbon[J]. Acta Physico-Chimica Sinica, 1998, 14(05): 477-480. doi: 10.3866/PKU.WHXB19980519
English
A Simple Method to Evaluate Lithium Insertion Capacity of PPP-based Carbon
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.
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Key words:
-
PPP-dericed carbon
- / Lithium ion cell
- / Reversible lithium insertion capacity
- / FTIR
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