Aluminum shell structure of laminated lithium battery and manufacturing method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 昆山斯格威电子科技有限公司
- Publication Date
- 2017-11-21
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Abstract
Description
technical field
[0001] The invention relates to the technical field of lithium battery packaging, in particular to a laminated lithium battery aluminum casing structure and a manufacturing method thereof. Background technique
[0002] At present, there are mainly two structural forms of aluminum casings for encapsulating laminated lithium batteries on the market. One is that the shell bottom and the shell wall are integrated. This kind of aluminum shell is manufactured by stamping. The thickness of the aluminum plate used is small, generally less than 0.6mm. The volume of the aluminum shell is also relatively small. It is mainly used for Smaller volume and capacity batteries such as mobile phone batteries. Another aluminum shell structure is welded by a separate straight cylindrical shell wall (rectangular cross-sectional shape) and a plate-shaped shell bottom. The thickness of the shell wall and shell bottom material used is relatively large, generally above 1.0mm. The we...