文献类型：会议论文

英文题名：Effect of Fluorine Content on the Electrochemical Properties of Pvdf-Derived Carbons for Lithium Ion Battery

作者：Shi, Lu[3];Miao, Chaolin[3];Chen, Gairong[3];Xu, Bin[1];Chen, Shi[2]

第一作者：史璐

通讯作者：Xu, B[1];Chen, S[2]

机构：[1]Res Inst Chem Def, Beijing 100191, Peoples R China;[2]Beijing Inst Technol, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China;[3]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 453000, Henan, Peoples R China

第一机构：Res Inst Chem Def, Beijing 100191, Peoples R China

通讯机构：[1]corresponding author), Res Inst Chem Def, Beijing 100191, Peoples R China;[2]corresponding author), Beijing Inst Technol, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China.

会议论文集：2nd International Conference on Advanced Material Research (ICAMR 2012)

会议日期：JAN 07-08, 2012

会议地点：Chengdu, PEOPLES R CHINA

语种：英文

外文关键词：PVDF-derived carbons; fluorine content; lithium ion battery; specific capacity; coulombic efficiency

摘要：The carbon materials prepared by PVDF carbonization at different temperatures have similar BET surface area and pores volume. The content of fluorine in the carbons decreased with the carbonization temperature from 1.46% (atm %) at 600 degrees C to 0.18 %(atm %) at 1000 degrees C. The first cycle specific capacity and the initial coulombic efficiency decreases with the decrease of fluorine content in the samples. The first cycle discharge capacity decreased from 982 mAh/g at 600 degrees C to 752 mAh/g at 1000 degrees C and the initial coulombic efficiency decreased from 31.8% at 600 degrees C to 24% at 1000 degrees C. It is believed that fluorine contained in the carbon materials has a positive effect to improve the electrochemical properties as anode materials for Li-ion batteries.