| CPC H01M 50/567 (2021.01) [H01M 50/148 (2021.01); H01M 50/188 (2021.01); H01M 50/193 (2021.01); H01M 50/543 (2021.01)] | 10 Claims |

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1. A battery cover, comprising a top cover plate, an electrode post and a connecting member, wherein an attached part is arranged on the top cover plate, a middle portion of the attached part is hollowed out to form a hollowed-out portion, a reinforcing hole is formed in the attached part, the attached part is wrapped with a connecting member, the connecting member comprises an upper connecting layer, a reinforcing rod and a lower connecting layer, the upper connecting layer and the lower connecting layer are located on front and back sides of the attached part respectively, the reinforcing rod penetrates through the reinforcing hole and connects the upper connecting layer and the lower connecting layer, a flange is arranged on an inner wall of the connecting member, the electrode post is located in the hollowed-out portion of the attached part, a groove is formed in a side wall of the electrode post, the connecting member wraps around the side wall of the electrode post, and the flange is located in the groove;
a receiving portion is formed in a surface of the attached part, the receiving portion is lower than an upper surface of the top cover plate, the upper connecting layer of the connecting member is received in the receiving portion, and an upper surface of the upper connecting layer is not higher than the upper surface of the top cover plate; and
the upper connecting layer has an outer circumferential wall fitted within an inner circumferential wall of the receiving portion.
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