Non-welded secondary battery
Patent Information
- Authority / Receiving Office
- CN ยท China
- Current Assignee / Owner
- LEXEL BATTERYSHENZHEN
- Publication Date
- 2013-07-24
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Abstract
Description
technical field
[0001] The present invention relates to a non-welded secondary battery. Background technique
[0002] At present, the pole piece and the positive and negative terminals (especially the positive pole) of the secondary battery are generally connected by tabs, and the connection between the tab and the positive and negative terminals and the pole piece is generally realized by spot welding or laser welding. On the one hand, some parts that are not effectively welded during mass production will produce high internal resistance, which will affect the consistency of the battery; The internal resistance of the battery is greatly increased, and at the same time, the heat conduction speed of the internal heat of the battery is reduced, especially when charging and discharging with a large current. The tabs inside the battery are connected to the positive and negative terminals by welding, such as spot welding, wire welding, surface welding or laser welding. Due to t...