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:
Mar. 11, 2025
Filed:
Oct. 21, 2021
Murata Manufacturing Co., Ltd., Kyoto, JP;
Naoto Akizuki, Kyoto, JP;
Masahiro Otsuka, Kyoto, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
Provided is a secondary battery including an electrode assembly and an electrolyte enclosed in an exterior case. The electrode assembly includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The secondary battery includes a spacer positioned between the electrode assembly and the exterior case. The electrode assembly includes a positive electrode current collecting tab and a negative electrode current collecting tab protruding from the electrode assembly. The spacer includes a first recess for the positive electrode current collecting tab and a second recess for the negative electrode current collecting tab at an outer edge in plain view, and the first recess and the second recess are provided with a separation portion interposed therebetween.