发明名称 |
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY |
摘要 |
Provided is a nonaqueous electrolyte secondary battery including a flat wound electrode body (20). The flat wound electrode body (20) has a flat portion (P), a first R portion (R 1 ), and a second R portion (R 2 ). The second R portion (R 2 ) is provided on a bottom side of a battery case (10) when a nonaqueous electrolytic solution is put into the battery case (10) at least in a battery construction step. Opposite end portions (27) of the second R portion (R 2 ) in the winding axial direction are squashed in a thickness direction of the electrode body to a larger extent than opposite end portions of the first R portion (R 1 ) in the winding axial direction. |
申请公布号 |
EP3048661(A1) |
申请公布日期 |
2016.07.27 |
申请号 |
EP20150193749 |
申请日期 |
2015.11.09 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
HARAYAMA, TAKASHI |
分类号 |
H01M10/0587;H01M2/02;H01M10/052 |
主分类号 |
H01M10/0587 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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