| 发明名称 |
METHOD OF MANUFACTURING SECONDARY BATTERY |
| 摘要 |
Provided is a method of manufacturing a secondary battery, in which scattering of an electrolyte is prevented while a degassing process is performed to prevent a product from being contaminated due to the scattering of the electrolyte. The method of manufacturing the secondary battery includes performing a formation process on a battery cell including a dead space to generate a gas within the battery cell, closing a piercing tool of a gas removing device to form a through hole in the dead space, thereby discharging the gas within the battery cell through the piercing tool, closing a sealing tool of the gas removing device after the gas is discharged to thermally bond an inner portion of the dead space that is adjacent to an electrode assembly within the battery cell, opening the piercing tool in the state where the sealing tool is closed, and opening the sealing tool after the piercing tool is opened. |
| 申请公布号 |
US2015089800(A1) |
申请公布日期 |
2015.04.02 |
| 申请号 |
US201414533817 |
申请日期 |
2014.11.05 |
| 申请人 |
LG CHEM, LTD. |
发明人 |
KIM Jeoung Hwan;WOO Jung Kyu;KIM Min Su |
| 分类号 |
H01M10/04 |
主分类号 |
H01M10/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of manufacturing a secondary battery, the method comprising:
performing a formation process on a battery cell comprising a dead space to generate a gas within the battery cell; closing a piercing tool of a gas removing device to form a through hole in the dead space, thereby discharging the gas within the battery cell through the piercing tool; closing a sealing tool of the gas removing device after the gas is discharged to thermally bond an inner portion of the dead space that is adjacent to an electrode assembly within the battery cell; opening the piercing tool in the state where the sealing tool is closed; and opening the sealing tool after the piercing tool is opened. |
| 地址 |
Seoul KR |
