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|1. (WO2017152575) SECONDARY BATTERY TAB AND SECONDARY BATTERY|
|Applicants:||CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
|Title:||SECONDARY BATTERY TAB AND SECONDARY BATTERY|
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.