| CPC H01M 50/559 (2021.01) [H01M 10/0525 (2013.01); H01M 50/109 (2021.01)] | 20 Claims |

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1. A secondary battery comprising:
an electrode assembly;
an exterior body that houses the electrode assembly; and
a metal plate joined to the exterior body via an insulating material interposed therebetween,
wherein
the exterior body has a cavity,
one or both of a peripheral edge of the cavity and an outer edge of the metal plate is bent so as to be separated from the insulating material, and
wherein the metal plate does not have any portion bent toward the insulating material.
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