新型炭材料2022，Vol.37Issue(6)：1163-1171,9.DOI:10.1016/S1872-5805(21)60057-4
无烟煤基石墨的制备及储锂性能
Preparation and lithium storage of anthracite-based graphite anode materials
摘要
Abstract
Several graphite samples with different microstructures were prepared from anthracite using industrial silicon powders as catalyst.The mechanism of the catalytic reaction and the electrochemical properties of the prepared coal-based graphite in lithium anodes were investigated.The correlation between the microstructure and the properties of the graphite is discussed.Results show that the sample with 5％silicon(G-2800-5％)has the best lithium storage.It has the well-developed graphitic structure with a degree of graphitization of 91.5％as determined from the interlayer spacing.When used as an anode material,a high reversible capacity of 369.0 mAh g-1 was achieved at 0.1 A g-and its reversible capacity was 209.0 mAh g-1 at a current density of 1 A g-1.It also exhib-its good cycling stability with a capacity retention of 92.2％after 200 cycles at 0.2 A g-1.The highly developed graphite structure,which is favorable for the formation of a stable SEI and therefore reduces lithium ion loss,is responsible for the superior electro-chemical performance.关键词
无烟煤/催化石墨化/锂离子电池/负极材料Key words
Anthracite/Catalytic graphitization/Lithium ion battery/Anode materials分类
化学化工引用本文复制引用
李圆,田晓冬,宋燕,杨桃,武世杰,刘占军..无烟煤基石墨的制备及储锂性能[J].新型炭材料,2022,37(6):1163-1171,9.基金项目
National Natural Science Foundation of China(52072383,U1610252),Natural Science Foundation of Shanxi Province(201801D221371)and the Out-standing PhD.Program of Shanxi Province(SQ2019001). 基金项目:国家自然科学基金(52072383,U1610252),山西省自然科学基金(201801D221371),山西省优秀博士引进资助(SQ2019001). （52072383,U1610252）
