Battery module and insulation inspecting method of battery module

摘要

A battery module includes a metal casing and a battery cell accommodated in the casing. The casing is provided on its outer surface with an insulation layer and a conductive portion.

主权项

1. A battery module, comprising:
a casing comprising a metal and provided on an outer surface of the casing with an insulation layer and a conductive portion; a battery cell accommodated in the casing, the battery cell generating electricity; and an insulation sheet disposed between an inner surface of the casing and the battery cell, wherein the conductive portion comprises a metal member that penetrates the casing and includes a calked portion at an inner end of the conductive portion, and wherein the casing includes a recess, at which an inner surface of the casing is dented outwardly, and the calked portion of the metal member is accommodated in the recess such that the calked portion does not project inward from the recess.