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:
Dec. 23, 2025
Filed:
Sep. 20, 2022
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Wonhee Michael Kim, Royal Oak, MI (US);
Hanho Yun, Oakland Township, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/264 (2021.01); H01M 50/204 (2021.01); H01M 50/291 (2021.01);
U.S. Cl.
CPC ...
H01M 50/264 (2021.01); H01M 50/204 (2021.01); H01M 50/291 (2021.01); H01M 2220/20 (2013.01);
Abstract
A battery includes a housing defining a sealed chamber, a battery pack positioned within the sealed chamber, and a shape memory alloy member that is adapted to axially compress the volume within the sealed chamber to pressurize the sealed chamber to an optimal pressure, and to automatically allow axial expansion of the volume of the sealed chamber in response to an increase of the pressure within the sealed chamber to maintain the pressure within the sealed chamber at the optimal pressure.