发明名称 |
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, VEHICLE, AND DEVICE USING BATTERY |
摘要 |
Disclosed is a nonaqueous electrolyte secondary battery (100) which comprises a flat wound electrode body (120) wherein a positive electrode plate (121), which comprises a positive electrode collector foil (122) and a positive electrode active material layer (123), and a negative electrode plate (131), which comprises a negative electrode collector foil (132) and a negative electrode active material layer (133), are wound up with a separator (141) being interposed therebetween. The positive electrode plate (121) has a collector portion covering layer (125) that has electrical insulation properties and covers at least a part of a counter collector portion (121m1) in the longitudinal direction in a positive electrode collector portion (121m). The collector portion covering layer (125) covers at least a counter collector innermost half-cylinder portion (121m1ar) which forms the innermost part of the counter collector portion (121m1) and has a half-cylindrical shape. |
申请公布号 |
EP2573857(A1) |
申请公布日期 |
2013.03.27 |
申请号 |
EP20100851745 |
申请日期 |
2010.05.18 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
SAITO, TAIRA;SUZUKI, SATORU |
分类号 |
H01M2/26;H01M2/34;H01M4/13;H01M10/04;H01M10/052;H01M10/0525;H01M10/0587;H01M10/42 |
主分类号 |
H01M2/26 |
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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