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:
Apr. 11, 2023

Filed:

Sep. 16, 2019
Applicant:

Mitsubishi Chemical Corporation, Chiyoda-ku, JP;

Inventors:

Tomohiro Kawai, Chiyoda-ku, JP;

Yoko Watanabe, Chiyoda-ku, JP;

Iwao Soga, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/6557 (2014.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/6568 (2014.01); H01M 50/209 (2021.01);
U.S. Cl.
CPC ...
H01M 10/6557 (2015.04); H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/6568 (2015.04); H01M 50/209 (2021.01); H01M 2220/20 (2013.01);
Abstract

A partition member has a thickness direction and a surface direction perpendicular to the thickness direction, and which separates single cells that make up an assembled battery in the thickness direction, or a single cell that makes up the assembled battery in the thickness direction and a member other than the single cells. The partition member includes, in the interior thereof, a fluid having a boiling point at normal pressure of 80° C. to 250° C., and a flow channel of the fluid extending along the surface direction. The fluid is held in a fluid holding part, and the fluid holding part is hermetically sealed by a packaging material.


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