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:
Nov. 19, 2019
Filed:
Aug. 31, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
Wayne Cai, Troy, MI (US);
Debejyo Chakraborty, Novi, MI (US);
Teresa J. Rinker, Royal Oak, MI (US);
Megan E. McGovern, Royal Oak, MI (US);
Ryan C. Sekol, Grosse Pointe Woods, MI (US);
Diana M. Wegner, Broomfiled Hills, MI (US);
Kevin B. Rober, Washinghton, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method and an apparatus for evaluating a battery cell. The battery cell may include a hermetically sealed outer casing, a plurality of electrically conductive components enclosed within the outer casing, an electrically conductive terminal having a proximal end that extends within the outer casing and a distal end that extends in a longitudinal direction relative to the battery cell outside the outer casing, and a solid electrical and mechanical joint formed between one or more of the electrically conductive components and the proximal end of the electrically conductive terminal. Evaluation of the battery cell may include measuring the impedance of the battery cell while applying a longitudinal pulling force or a transverse bending force to the electrically conductive terminal and the solid electrical and mechanical joint.