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.

Date of Patent:
Nov. 11, 2025

Filed:

Mar. 24, 2022
Applicant:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Inventors:

Yoshiichi Horikoshi, Kyoto, JP;

Taichi Katsumoto, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/109 (2021.01); H01M 50/181 (2021.01);
U.S. Cl.
CPC ...
H01M 50/109 (2021.01); H01M 50/181 (2021.01);
Abstract

A flat secondary battery includes an outer package member, a battery device, and an electrode terminal. The outer package member has a flat and columnar shape, and includes a pair of bottom parts and a sidewall part. The bottom parts are opposed to each other. The sidewall part lies between the bottom parts. At least a portion of a surface of the sidewall part is a curved surface. The battery device is contained inside the outer package member and includes a positive electrode and a negative electrode. The electrode terminal is provided to be exposed at the sidewall part and is coupled to one of the positive electrode and the negative electrode.


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