| 发明名称 |
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY |
| 摘要 |
Provided is a nonaqueous electrolyte secondary battery including a bottomed cylindrical positive electrode casing and a negative electrode casing which is fixed to an opening of the positive electrode casing through a gasket. The opening of the positive electrode casing is caulked to the negative electrode casing side to seal the accommodation space. A shortest distance L1 between a caulking tip end and the negative electrode casing in the opening of the positive electrode casing is equal to or less than 70% of an average sheet thickness of the positive electrode casing, a shortest distance L2 between a tip end of the negative electrode casing and the positive electrode casing is equal to or less than 60% of the average sheet thickness of the positive electrode casing, and a distance L3 between the tip end of the negative electrode casing and the bottom of the positive electrode casing is equal to or less than 110% of the average sheet thickness of the positive electrode casing. |
| 申请公布号 |
US2015207113(A1) |
申请公布日期 |
2015.07.23 |
| 申请号 |
US201514599231 |
申请日期 |
2015.01.16 |
| 申请人 |
Seiko Instruments Inc. |
发明人 |
MIURA Ken;SAWAYAMA Takumi;SUZUKI Tadahito;MITSUZUKA Akira;KOBAYASHI Tomomi |
| 分类号 |
H01M2/02;H01M2/08;H01M4/485;H01M10/052;H01M10/0569;H01M2/16;H01M10/04;H01M2/04;H01M4/50 |
主分类号 |
H01M2/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A nonaqueous electrolyte secondary battery, comprising:
a bottomed cylindrical positive electrode casing; and a negative electrode casing which is fixed to an opening of the positive electrode casing through a gasket, and forms an accommodation space between the positive electrode casing and the negative electrode casing, wherein the opening of the positive electrode casing is caulked to the negative electrode casing side to seal the accommodation space, a shortest distance L1 between a caulking tip end of the positive electrode casing and the negative electrode casing in the opening of the positive electrode casing is equal to or less than 70% of an average sheet thickness of the positive electrode casing, a shortest distance L2 between a tip end of the negative electrode casing and the positive electrode casing is equal to or less than 60% of the average sheet thickness of the positive electrode casing, and a distance L3 between the tip end of the negative electrode casing and the bottom of the positive electrode casing is equal to or less than 110% of the average sheet thickness of the positive electrode casing. |
| 地址 |
Chiba-shi JP |
