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:
Sep. 09, 2025
Filed:
Nov. 02, 2023
Partition member, assembled battery and method for controlling heat transfer in an assembled battery
Applicant:
Mitsubishi Chemical Corporation, Tokyo, JP;
Inventors:
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/617 (2014.01); H01M 10/625 (2014.01); H01M 10/627 (2014.01); H01M 10/651 (2014.01); H01M 10/6555 (2014.01); H01M 10/658 (2014.01); H01M 50/204 (2021.01); H01M 50/291 (2021.01);
U.S. Cl.
CPC ...
H01M 10/617 (2015.04); H01M 10/625 (2015.04); H01M 10/627 (2015.04); H01M 10/651 (2015.04); H01M 10/6555 (2015.04); H01M 10/658 (2015.04); H01M 50/204 (2021.01); H01M 50/291 (2021.01); H01M 2220/10 (2013.01); H01M 2220/20 (2013.01);
Abstract
A partition member has two surfaces in a thickness direction, and separates single cells that make up an assembled battery. When the average temperature of one of the two surfaces exceeds 180° C., a thermal resistance per unit area (θ) in the thickness direction satisfies Expression 1 below, and when the average temperatures of both of the two surfaces do not exceed 80° C., a thermal resistance per unit area (θ) in the thickness direction satisfies Expression 2 below.θ≥5.0×10(m·K/W) (Expression 1), andθ≤4.0×10(m·K/W) (Expression 2).