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The nonaqueous electrolyte secondary battery 发明申请

2023-06-03 3560 167K 0

专利信息

申请日期 2025-07-11 申请号 JP2016537735
公开(公告)号 JPWO2016017093A1 公开(公告)日 2017-04-27
公开国别 JP 申请人省市代码 全国
申请人 三洋電機株式会社
简介 There is provided a positive electrode active material for a nonaqueous electrolyte secondary battery capable of suppressing an increase in DCR during cycles. There is provided a positive electrode active material for a nonaqueous electrolyte secondary battery that includes a secondary particle formed by aggregation of primary particles formed of a lithium transition metal oxide. A rare-earth compound secondary particle formed by aggregation of particles formed of a rare-earth compound adheres to a recess formed between primary particles adjacent to each other on a surface of the secondary particle, and the rare-earth compound secondary particle adheres to both the primary particles adjacent to each other in the recess. A tungsten-containing compound adheres to an interface of primary particles inside the secondary particle formed of the lithium transition metal oxide.


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