发明名称 POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME
摘要 The present invention has an object to provide a non-aqueous electrolyte secondary battery having a high capacity and favorable charge/discharge characteristics at a high current density. In order to achieve this object, the positive electrode for a non-aqueous electrolyte secondary battery in accordance with the present invention includes a current collector and an active material layer, the active material layer has a first active material layer including dendritic active material particle, and the dendritic active material particles branch out into a plurality of branch portions from a bottom portion of the current collector side toward a surface side of the first active material layer. In the first active material layer, it is preferable that an active material density of the bottom portion side is larger than an active material density of the surface side.
申请公布号 EP2214228(A1) 申请公布日期 2010.08.04
申请号 EP20090766414 申请日期 2009.06.16
申请人 PANASONIC CORPORATION 发明人 NAGATA, KAORU
分类号 H01M4/02;H01M4/04 主分类号 H01M4/02
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