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1. (WO2017152575) SECONDARY BATTERY TAB AND SECONDARY BATTERY

Pub. No.:    WO/2017/152575    International Application No.:    PCT/CN2016/092775
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Aug 03 01:59:59 CEST 2016
IPC: H01M 2/26
Applicants: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
宁德时代新能源科技股份有限公司
Inventors: GONG, Yitao
巩毅涛
WU, Tiefeng
吴铁峰
WU, Chunlong
武春龙
LIN, Jingbin
林景斌
GUO, Chao
郭超
ZHANG, Xuewen
张学文
Title: SECONDARY BATTERY TAB AND SECONDARY BATTERY
Abstract:
A secondary battery tab (2) and a secondary battery, relating to the field of energy storage devices. Strip-shaped reinforcing grooves (3) are formed on the tab (2). The secondary battery comprises a positive plate, a negative plate, a positive tab, and a negative tab. The positive tab is electrically connected to the positive plate. The negative tab is electrically connected to the negative plate. The positive tab and/or negative tab is the secondary battery tab (2). By forming the strip-shaped reinforcing grooves (3) on the tab (2) by means of stamping, the strength of the tab (2) is improved, such that the battery would not easily be bent, folded, or torn even when a collision occurs to the tab (2) during the battery winding process, thereby guaranteeing the battery quality and improving the yield rate.