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:
Feb. 18, 2025
Filed:
Mar. 06, 2020
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Atsushi Kaiduka, Osaka, JP;
Noriko Sugii, Tokushima, JP;
Abstract
The purpose of the present disclosure is to provide a non-aqueous electrolyte secondary battery capable of suppressing an internal short circuit of a battery due to an external impact in both a fully charged state and a non-fully charged state. The non-aqueous electrolyte secondary battery according to one embodiment of the present disclosure is characterized by: comprising a wound electrode body in which a positive electrode and a negative electrode are wound thereon via a separator, and a battery case that houses the electrode body; the positive electrode having a positive electrode current collector and a positive electrode mixture layer formed on at least one surface of the positive electrode current collector; and the separator having a normal part and a plastically deformed part having a higher puncture strength than the normal part.