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:
Mar. 31, 2026

Filed:

Jun. 11, 2025
Applicant:

Element Energy, Inc., Menlo Park, CA (US);

Inventors:

Nathan Thomas Brinkerhoff, Santa Clara, CA (US);

Corrado Cammi, Mountain View, CA (US);

Arnaud Devie, Menlo Park, CA (US);

Assignee:

Element Energy, Inc., Menlo Park, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 25/18 (2006.01); G01R 31/3835 (2019.01); H01M 10/48 (2006.01); H01M 10/633 (2014.01);
U.S. Cl.
CPC ...
G01N 25/18 (2013.01); G01R 31/3835 (2019.01); H01M 10/482 (2013.01); H01M 10/633 (2015.04);
Abstract

A method for determining respective thermal characteristics of a plurality of electrochemical cell assemblies in an energy storage system includes (1) sensing open circuit voltage of each electrochemical cell assembly of the plurality of electrochemical cell assemblies over a measurement time period, (2) controlling temperature control equipment of the energy storage system to change a temperature setpoint of a heat transfer fluid during the measurement time period, (3) generating a respective voltage profile for each electrochemical cell assembly, (4) determining a respective electrical time constant for each electrochemical cell assembly from the respective voltage profile for the electrochemical cell assembly, and (5) determining a respective thermal characteristic for each electrochemical cell assembly at least partially based on the respective electrical time constant for the electrochemical cell assembly.


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