自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 13    No. 1    February 2006

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Optimizing pyrolysis of resin carbon for anode of lithium ion batteries
GUO Hua-jun(郭华军)1, LI Xin-hai(李新海) 1, ZHANG Xin-ming(张新明)2,
WANG Zhi-xing(王志兴) 1, PENG Wen-jie(彭文杰) 1, ZHANG Bao(张 宝)

1. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China;
2. School of Materials Science and Engineering, Central South University, Changsha 410083, China

Abstract:Pyrolytic resin carbon anode for lithoum ion batteries was prepared from thermosetting phenolic resin.Pyrolysis of the primary phenolic resin and the dewatered one was studied by thermal gravimetric analysis. Structures and characteristics of the carbon materials were determined by X-ray diffraction, Brunauer-Emmer-Teller surface area analysis and electrochemical measurements. With the increase of pyrolyzing temperature and soaking time,the resin carbon material has larger crystallite sizes ofLcandLa, lower specific surface area, smaller irreversible capacity and higher initial coulombic efficiency. The pyrolyzing temperature and soaking time are optimized to be 1 050 ℃and 2 h. The resin carbon anode obtained under the optimum conditions shows good electrochemical performances with reversible capacity of 387 mA·h/g and initial coulombic efficiency of 69.1%.

 

Key words: lithium ion battery; carbon; phenolic resin; anode

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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