发明名称 |
SECONDARY BATTERY |
摘要 |
A secondary battery includes: a positive electrode; a negative electrode; a porous electron-insulating layer adhered to a surface of at least one selected from the group consisting of the positive electrode and the negative electrode; and an electrolyte. The porous electron-insulating layer comprises a particulate filler and a resin binder, and the particulate filler comprises an indefinite-shape particle comprising a plurality of primary particles that are joined to one another. A neck is preferably formed between the primary particles. Since the porous electron-insulating layer has high porosity, it is possible to obtain a secondary battery that exhibits excellent low-temperature characteristics, which are particularly important in actual use, and that is capable of discharging at a large current. |
申请公布号 |
EP1734600(B1) |
申请公布日期 |
2008.11.26 |
申请号 |
EP20050709814 |
申请日期 |
2005.02.07 |
申请人 |
PANASONIC CORPORATION |
发明人 |
OHATA, TSUMORU;NAKAJIMA,JUNJI;HAYASHI, TETSUYA;IKUTA, SHIGEO;FUKUMOTO, YUSUKE |
分类号 |
H01M4/62;H01M2/16;H01M4/13;H01M4/36;H01M10/0525;H01M10/36 |
主分类号 |
H01M4/62 |
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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