Patent ID: 11876245
Assignee: PANASONIC ENERGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A sealed battery comprising:
a battery case including a bottomed tubular exterior can, and a sealing assembly sealing an opening of the exterior can;
a gasket arranged between the exterior can and the sealing assembly; and
an electrode assembly including an electrode lead and housed in the battery case, wherein
the sealing assembly includes
a metal plate including an annular part that the electrode lead is electrically connected to, and a separation part that is to be separated from the annular part when an internal pressure of the battery case exceeds a predetermined threshold,
a vent member that is arranged more on an outside of the battery case than the metal plate and is connected to the separation part, and
an insulating plate that is arranged between the metal plate and the vent member and insulates the metal plate and the vent member from each other except for a connection portion between them, and
an elastic deformation part that is to deform in a direction toward the vent member when the separation part of the metal plate is separated from the annular part and is provided in the insulating plate or the gasket.