电源技术2017，Vol.41Issue(6)：837-839,3.
膨胀石墨作为锂离子电池负极材料的研究
Research on expanded graphite as anode material for lithium-ion battery
刁玉琦 1宗军 1丁飞1
作者信息
- 1. 中国电子科技集团公司第十八研究所,天津300384
- 折叠
摘要
Abstract
A super-low temperature method for synthesizing expanded graphite as anode material for lithium-ion battery was reported.The phase,morphology and structure of the expanded graphite were characterized by X-ray diffraction (XRD),scanning electron microscope (SEM) and Brunauer-Emmett-Teller (BET) measurements;the electrochemical performance was tested by the galvanostatic charge/discharge process.The results show that the acquired graphite with comb-like porosity structure has specific area of 54 m2/g.The expanded graphite has good performance for lithium-ion insertion/extraction.At the current density of 100 mA/g,the initial specific capacity can reach 410 mAh/g,and the capacity (about 400 mAh/g) retention is up to 95％ after 220 cycles.It is a promising anode material for lithium-ion battery.关键词
超低温/膨胀石墨/负极/锂离子电池/电化学性能Key words
super-low temperature/expanded graphite/anode/lithium-ion battery/electrochemical performance分类
信息技术与安全科学引用本文复制引用
刁玉琦,宗军,丁飞..膨胀石墨作为锂离子电池负极材料的研究[J].电源技术,2017,41(6):837-839,3.
