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. 16, 2025
Filed:
Dec. 19, 2023
GM Global Technology Operations Llc, Detroit, MI (US);
Nathan Thompson, Sterling Heights, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A dilatometer configured to measure dilation of an electrode in a battery. The dilatometer including a controller configured to: receive calibration force readings from a magnetic force sensor, the calibration force readings including magnetic force strength between a magnet of the dilatometer and a magnetic spacer of the battery at different calibration distances resulting from movement of the magnet relative to the magnetic spacer across a distance range during calibration; assign a position value to each one of the calibration force readings, the position value is a distance between the magnet and the magnetic spacer of the battery; and predict magnetic force strength between the magnet and the magnetic spacer across an entirety of the distance range based on the position values of the calibration force readings.