Optimizing pyrolysis of resin carbon for anode of lithium ion batteries

来源期刊：中南大学学报(英文版)2006年第1期

论文作者：郭华军 李新海 张新明 王志兴 彭文杰 张宝

文章页码：58 - 62

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

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%.

基金信息：the National Natural Science Foundation of China