发明名称 NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
摘要 Provided is a negative electrode for a non-aqueous electrolyte secondary battery, the negative electrode being unlikely to cause changes in thickness even when subjected repeated charge/discharge over a long period of time. The negative electrode includes a core material, and a negative electrode material mixture layer adhering to the core material. The negative electrode material mixture layer includes a particulate carbon material. The particulate carbon material has a breaking strength of 100 MPa or more. The particulate carbon material has a surface roughness Ra of 0.2 to 0.8μm. The negative electrode material mixture layer has a packing density of 1.4 to 1.6 g/cm3. In a diffraction pattern of the negative electrode material mixture layer measured by wide-angle X-ray diffractometry, the ratio of I(101) to I(100) satisfies 1.0<I(101)/I(100)<3.0, and the ratio of I(110) to I(004) satisfies 0.25≰I(110)/I(004)≰0.45.
申请公布号 KR20120046253(A) 申请公布日期 2012.05.09
申请号 KR20127003768 申请日期 2011.03.25
申请人 PANASONIC CORPORATION 发明人 TAKAHASHI KEIICHI
分类号 H01M4/587;H01M4/133;H01M4/1393;H01M10/0587 主分类号 H01M4/587
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