公开(公告)号：US20150089800A1

公开(公告)日：2015-04-02

申请号：US14533817

申请日：2014-11-05

Applicant: LG CHEM, LTD.

Inventor： Jeoung Hwan KIM ,  Jung Kyu WOO ,  Min Su KIM

IPC: H01M10/04

CPC classification number: H01M10/04 ,  H01M10/0481 ,  H01M10/049 ,  H01M10/052 ,  H01M10/058 ,  Y10T29/4911

Abstract: 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.

Abstract translation: 提供一种制造二次电池的方法，其中在进行脱气处理时防止电解质的散射，以防止由于电解质的散射而使产品被污染。 二次电池的制造方法包括对包含死区的电池单元进行形成处理，以在电池单元内产生气体，封闭气体去除装置的穿孔工具，在死空间内形成贯通孔，从而放电 通过穿刺工具在电池单元内的气体，在气体排出之后关闭气体去除装置的密封工具，以将与电池单元内的电极组件相邻的死空间的内部部分热粘合，打开穿孔 在密封工具关闭的状态下工具，并且在穿孔工具打开之后打开密封工具。