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:
Jun. 16, 2026
Filed:
Apr. 21, 2023
GM Global Technology Operations Llc, Detroit, MI (US);
Michael P. Balogh, Novi, MI (US);
Andrew J. Galant, Shelby Township, MI (US);
William Osad, Macomb, MI (US);
Ratandeep Singh Kukreja, Auburn Hills, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A dilatometer for measuring battery dilation includes a battery cell, a magnet, and a magnetic force sensor. One of the magnet and the magnetic force sensor moves in response to expansion of the battery cell during dilation of the battery cell and the other of the magnet and the magnetic force sensor is stationary relative to the battery cell. The magnetic force sensor is configured to sense a change in magnetic force strength between the magnet and the magnetic force sensor. A sensor is configured to sense one of temperature and strain. A controller is configured to measure dilation of the battery cell based on the change in the magnetic force strength between the magnet and the magnetic force sensor and to compensate the dilation of the battery cell in response to the one of the temperature and the strain.