| CPC H01M 50/533 (2021.01) [H01M 50/152 (2021.01); H01M 50/543 (2021.01); H01M 50/591 (2021.01); H01M 50/645 (2021.01); H01M 2220/20 (2013.01)] | 13 Claims |
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1. A battery, comprising:
an electrode assembly;
an end cover having an electrode terminal and an injection hole;
a connection member, comprising:
a first connection portion configured to be electrically connected with the electrode assembly,
a second connection portion configured to be electrically connected with the first connection portion, and
a third connection portion configured to be electrically connected with the second connection portion and the electrode terminal,
wherein a first crease is located between the first connection portion and the second connection portion, and a second crease is located between the second connection portion and the third connection portion,
wherein two first notches are located at two ends of the first crease, wherein the two first notches extend into the first connection portion and the second connection portion,
wherein when the connection member is folded from the expanded state, the second connection portion is folded at the first crease to become substantially parallel to the first connection portion, and the third connection portion is folded at the second crease to become substantially parallel to the second connection portion;
and
a first insulating member arranged at a side of the end cover of the battery adjacent to the electrode assembly, the first insulating member comprises an insulating body and a limiting ring, and the limiting ring protrudes toward a direction close to the electrode assembly relative to the insulating body, and is arranged on a periphery of the connection member, so as to prevent the connection member from contacting with a case of the battery,
wherein the limiting ring is an unclosed circular ring, and an extending opening is arranged between two free ends of the limiting ring, to allow the second connection portion of the expanded connection member to extend outside.
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