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:
Sep. 27, 2016

Filed:

Dec. 21, 2012
Applicant:

Saft, Bagnolet, FR;

Inventors:

Alain Patin, Le Taillan Médoc, FR;

Patrice Fleureau, Le Taillan Médoc, FR;

Philippe Desprez, Le Taillan Médoc, FR;

Loïc Reboussin, Eysines, FR;

Assignee:

SAFT, Bagnolet, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/416 (2006.01); G01R 31/36 (2006.01); G01R 23/16 (2006.01); G01N 37/00 (2006.01); G01R 27/02 (2006.01); G01R 27/28 (2006.01); G01R 31/00 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3606 (2013.01); G01R 27/02 (2013.01); G01R 27/28 (2013.01); G01R 31/001 (2013.01); G01R 31/3662 (2013.01); G01R 31/3679 (2013.01); H01M 10/42 (2013.01);
Abstract

A method is provided for determining a state variable such as aging of an electrochemical cell comprising an electrode plate group, that includes analyzing at least a portion of a response spectrum of the electrochemical cell to application of an electromagnetic wave in a frequency ranging from 10 kHz to 10 GHz, so as to determine an indicator of the value of the state variable.


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