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:
Oct. 14, 2025

Filed:

Jan. 09, 2024
Applicant:

Southwest Research Institute, San Antonio, TX (US);

Inventors:

Jayant Vitthal Sarlashkar, San Antonio, TX (US);

Venkata Rajesh Chundru, San Antonio, TX (US);

Bapiraju Surampudi, San Antonio, TX (US);

Assignee:

SOUTHWEST RESEARCH INSTITUTE, San Antonio, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/36 (2020.01); G01R 31/378 (2019.01); G01R 31/3842 (2019.01); G01R 31/392 (2019.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/3646 (2019.01); G01R 31/378 (2019.01); G01R 31/3842 (2019.01); G01R 31/392 (2019.01); H01M 10/0525 (2013.01);
Abstract

Battery testing and monitoring by determining battery characteristics such as an increase thickness of the battery SEI layer, extent of lithium-ion plating, loss of cyclable lithium, dendrite growth (and extent), and/or other characteristics that may impact the performance and/or safety of a lithium-ion battery. The battery characteristics may be determined at perioding intervals using test data that includes voltage and current at various charging levels and state of charge, thus providing impedance profiles that can be compared to modelled and/or known thresholds of battery conditions.


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