CYLINDRICAL SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR

• Main Authors: KIM DONG-MYUNG, YOON SUNG-PIL, SUNG JOO-HWAN
• Format: Patent
• Language: Chinese; English
• Published: 26.11.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A cylindrical secondary battery according to one embodiment of the present invention relates to a secondary battery in which an electrode assembly having a cathode/separation film/anode structure is embedded in a cylindrical battery can, the secondary battery comprising: a first insulating layer which is mounted at the top of the electrode assembly and which has a first through-hole through which an electrode tab passes; and a second insulating layer which is mounted at the top of the first insulating layer and which has a second through-hole formed to correspond to a center location of the electrode assembly. 根据本公开内容的一个实施方式，提供了一种圆柱形二次电池，在该圆柱形二次电池中具有正极/隔膜/负极结构的电极组件内置在圆柱形电池罐中，该圆柱形二次电池包括：第一绝缘层，第一绝缘层安装在电极组件的上端部处并且具有供电极接片穿过的第一通孔；和第二绝缘层，第二绝缘层安装在第一绝缘层的上端处并且具有与电极组件的中心位置对应形成的第二通孔。