发明名称 |
LITHIUM ION BATTERY AND ELECTRODE WOUND BODY FOR LITHIUM ION BATTERY |
摘要 |
In a lithium ion battery, including: a battery case; and a wound electrode body formed by attaching an unwinding prevention tape to a circumference of a wound electrode structure which is formed by winding a laminate of a tape-form negative electrode and a tape-form positive electrode together with a tape-form separator interposed therebetween, and a non-aqueous electrolytic solution, sealed up together within the battery case; the unwinding prevention tape is formed of a composite material of a vinylidene fluoride resin and an aromatic polyester resin. As a result, it is possible to provide a lithium ion battery which can stably prevent the unwinding of the wound electrode structure and a decrease of power even under a high-temperature service condition as encountered in a large-power use, and also such a wound electrode body for the lithium ion battery. |
申请公布号 |
EP2276097(A4) |
申请公布日期 |
2012.12.19 |
申请号 |
EP20090746594 |
申请日期 |
2009.05.12 |
申请人 |
KUREHA CORPORATION |
发明人 |
SUZUKI, KAZUYUKI;SUGAHARA, MAYUMI;YAMAMOTO, JUNYA;KITAMURA, HIDEKI;TERAMOTO, YOSHIKICHI |
分类号 |
H01M10/05;H01M2/02;H01M2/08;H01M10/0587;H01M10/38 |
主分类号 |
H01M10/05 |
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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