| 发明名称 |
LITHIUM ION SECONDARY BATTERY |
| 摘要 |
Provided is a lithium ion secondary battery that includes a package housing a positive electrode, a negative electrode, a separator, and an electrolyte solution. In the lithium ion secondary battery: the package including a stack including a metal base material, an acid modified polypropylene layer, and a polypropylene layer stacked sequentially; the polypropylene layer forms an inner surface of the package; the package includes a heat-sealed portion and a non-sealed portion; and the thickness of one acid modified polypropylene layer included in the heat-sealed portion is smaller than a half of the thickness of the polypropylene layer included in the heat-sealed portion. |
| 申请公布号 |
US2016351949(A1) |
申请公布日期 |
2016.12.01 |
| 申请号 |
US201615156398 |
申请日期 |
2016.05.17 |
| 申请人 |
Automotive Energy Supply Corporation |
发明人 |
TAGUCHI Hiromoto;KIMURA Aika;MIZUTA Masatomo;TANJO Yuji |
| 分类号 |
H01M10/0525;H01M2/02;H01M2/18;H01M2/16;H01M10/0585;H01M10/02 |
主分类号 |
H01M10/0525 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A lithium ion secondary battery comprising
a package housing a positive electrode, a negative electrode, a separator, and an electrolyte solution, wherein the package includes a stack including a metal base material, an acid modified polypropylene layer, and a polypropylene layer stacked sequentially, the polypropylene layer forms an inner surface of the package, the package includes a heat-sealed portion and a non-sealed portion, and the thickness of one acid modified polypropylene layer included in the heat-sealed portion is smaller than a half of the thickness of the polypropylene layer included in the heat-sealed portion. |
| 地址 |
Zama-Shi JP |
