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发明名称
正极活性物质-石墨烯复合体粒子及锂离子电池用正极材料;POSITIVE ACTIVE MATERIAL-GRAPHENE COMPOSITE PARTICLE AND POSITIVE MATERIAL FOR LITHIUM ION BATTERY
摘要
本发明的目的在于提供一种对于电子传导性低的锂离子电池的正极活性物质,不仅抑制了阻碍锂离子于活性物质粒子中的脱插入的情况,而且亦提高电子传导性的正极活性物质-石墨烯复合体粒子,以及由上述复合体粒子组成的锂离子电池用正极材料。本发明是一种正极活性物质-石墨烯复合体粒子,其为正极活性物质粒子、与含有石墨烯的基质复合化而成的复合体粒子状的锂离子电池用正极材料,并且将藉由X射线光电子测定而测定的材料表面的碳元素比例(%)除以材料整体的碳元素比例(%)而得的値为1.5以上、7以下。
申请公布号
TW201444164
申请公布日期
2014.11.16
申请号
TW103102275
申请日期
2014.01.22
申请人
东丽股份有限公司
发明人
川村博昭;久保田泰生;玉木栄一郎;松下未幸;杨含霄
分类号
H01M4/58(2010.01)
主分类号
H01M4/58(2010.01)
代理机构
代理人
<name>詹铭文</name><name>叶璟宗</name>
主权项
地址
日本
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