Title二元共聚物热解碳包覆的石墨负极材料
Other TitlesPyrolytic Carbon Coated Graphite Anode for Lithium Ion Battery
Authors陈继涛
周恒辉
常文保
慈云祥
Affiliation北京大学化学与分子工程学院,北京,100871
Keywords锂离子电池
负极材料
包覆天然石墨
苯萘共聚物
lithium ion battery
anode material
coated natural graphite
benzene-naphthalene copolymer
Issue Date2002
Publisher物理化学学报
Citation物理化学学报.2002,18,(2),180-182.
Abstract以苯萘二元共聚物包覆天然石墨后进行热处理,用所制备的包覆石墨作为锂离子电池的负极材料,与包覆前石墨材料相比较,可逆容量提高了10%,不可逆容量降低了7%,循环性能也得到了大的改善.X射线分析表明,改性后该石墨晶体中三方石墨的含量增高.
Carbon-coated natural graphite has been prepared by mixing graphite particles with benzene-naphthalene copolymer and thermaly treating the mixture under a nitrogen gas flow. The coated natural graphite showed about 10% higher reversible capacity and about 7% lower irreversible capacity as an anode material for lithium ion battery with pristine graphite. The cycling behavior of graphite was also improved after being coated. The X-ray diffraction (XRD) results showed that the rhombohedral phase fraction of natural graphite increased after being coated.
URIhttp://hdl.handle.net/20.500.11897/78383
ISSN1000-6818
DOI10.3866/PKU.WHXB20020218
IndexedSCI(E)
中文核心期刊要目总览(PKU)
中国科技核心期刊(ISTIC)
中国科学引文数据库(CSCD)
Appears in Collections:化学与分子工程学院

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