CPC H01M 50/242 (2021.01) [H01M 2220/20 (2013.01)] | 17 Claims |
1. A battery unit, comprising:
a housing;
at least one cell, accommodated in the housing; and
a buffer, accommodated in the housing and disposed corresponding to a side wall of the cell,
wherein the buffer is provided with an accommodating cavity, a periphery of the accommodating cavity comprises at least one packaging structure, the packaging structure comprises at least one level of packaging region with a predetermined length, and when pressure in the accommodating cavity exceeds packaging strength of the packaging structure, the packaging region is opened to form a buffer space that communicates with the accommodating cavity.
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