The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2024
Filed:
Oct. 04, 2021
Nippon Steel Corporation, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A novel battery container that can be obtained by welding plated steel sheets, has sufficient sealing ability over a long period of time, and is able to keep the base material of the plated steel sheets from being exposed and eluting into the electrolyte solution is provided. That is, a battery case comprised of a container body and a container lid, wherein the container body and the container lid are each comprised of a plated steel sheet, a joint part between the container and the container lid is comprised of a plating welded part containing a main constituent component of the plating of the plated steel sheet in 60 mass % or more and a steel sheet welded part containing the main constituent component of the plating in less than 60 mass %, and the plating welded part has a length of 0.5 μm or more and less than 1.0 mm in a joint longitudinal direction.