Patent ID: 11909055
Assignee: PANASONIC HOLDINGS CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A secondary battery comprising:
an electrode body that includes a positive electrode plate and a negative electrode plate;
a battery case that has an opening and in which the electrode body is accommodated;
a sealing body that seals the opening;
an internal terminal that is disposed on an inner side of the sealing body and connected to the positive electrode plate or the negative electrode plate; and
an external terminal that is disposed on an outer side of the sealing body and connected to the internal terminal,
wherein the external terminal includes a rivet that is formed in such a manner as to extend through the sealing body,
wherein the internal ter final includes a first portion made of a first metal and a second portion made of a second metal, and
wherein the external terminal is made of the second metal, and the rivet of the external terminal is joined to the second portion of the internal terminal.