树脂复合对天然石墨电化学性能的影响  

Effect of phenol formaldehyde resin composite on electrochemical preformance of the natural graphite

作　　者：马铁[1] 王成扬[1] 陈静远[1] 时志强[1] 

机构地区：[1]天津大学化工学院绿色合成与转化教育部重点实验室,天津300072

出　　处：《电源技术》2006年第6期492-495,共4页Chinese Journal of Power Sources

摘　　要：在球形石墨上采用氧化—浸渍—固化—炭化的方法沉积一层酚醛树脂热解炭,制备成包覆石墨,对包覆石墨电化学性能进行了研究。通过对不同包覆量的复合材料的表观形貌、结构及其电化学性能的研究,对比包覆氧化石墨和未氧化石墨的电化学性能,得到结论:树脂炭对于氧化后的球形石墨具有较好的包覆作用,提高了球形石墨的球形度,有利于锂离子的嵌入/脱出,改善了电化学性能。The coated graphite were treated with phenol resin as coating agent to prepare composite anode material, which oxides in H2O2,involves liquid-phenol-impregnation and carbonization steps. According to research for the morphology, structure and charge-discharge performance and the electrochemical performance between the oxidized and no-oxidized natural graphite ,the conclusion show that the pyrolysis of resin could coat graphite satisfactorily, and improve the surface of graphite, which helps to improve lithium ion insertion/deinsertion performance of natural graphite.

关 键 词：酚醛树脂 碳复合 锂离子蓄电池 天然石墨 

分 类 号：TM912[电气工程—电力电子与电力传动]