Patent ID: 11881550
Assignee: PANASONIC HOLDINGS CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A battery comprising:
a battery can having a cylindrical portion, a bottom wall closing one end of the cylindrical portion, and an open rim continuous with the other end of the cylindrical portion; an electrode body housed in the cylindrical portion; and a sealing body fixed to the open rim so as to seal an opening defined by the open rim, and
an endmost portion of the open rim, which includes an end surface of the open rim, extends in a direction forming an angle of less than 5° with an axial direction of the battery can, the end surface being the uppermost surface of the open rim in the axial direction of the battery,
the sealing body including a sealing plate and a gasket disposed at a peripheral portion of the sealing plate,
the gasket having at least one protruding portion configured to restrict the sealing body from being inserted entirely into the open rim, the protruding portion protruding outward in a radial direction and being disposed on the end surface of the open rim.