Battery cell, battery, and electrical equipment
AssigneeContemporary Amperex Technology (Hong Kong) Limited
InventorsYuyong Lei, Zhijun Guo, Chuan Li, Han Yan, Shaobin Huang
Life of this patent
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Abstract
Provided are a battery cell, battery, and an electrical equipment. The battery cell includes a housing and a first insulating member. The housing provides a welding mark region. The first insulating member is arranged on an outer surface of the housing, and the first insulating member provides a first thickened region, wherein the first thickened region covers at least a portion of the welding mark region. This reduces the risk of the welding mark region piercing through the first insulating member, which could cause insulation failure of the battery cell. Thus, the insulation performance of the battery cell is improved.
Claims19
A battery cell, comprising
- a housing providing a welding mark region;
- and
- a first member arranged on an outer surface of the housing, wherein the first insulator provides a first thickened region, and the first thickened region covers at least a portion of the welding mark region,
- wherein openings are formed at opposite ends of the housing;
- the battery cell further comprises end covers, each of the end covers corresponding to an opening, with the end covers sealing the openings;
- the housing comprises multiple wall portions and multiple corner portions, and in the circumferential direction of the housing, each corner portion connects two adjacent wall portions;
- the welding mark region is located on the wall portion;
- and
- the welding mark region is located on a center region of the wall portion, covering a full straight line between the opposite ends of the housing, between two adjacent corner portions in the circumferential direction of the wall portion.
Dependencies are inferred from the claim text.