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. 29, 2015

Filed:

Dec. 28, 2011
Applicants:

Christopher James Chuah, Schenectady, NY (US);

Roger Bull, Burton Upon Trent, GB;

James Sudworth, Burton Upon Trent, GB;

Vincent Boccanfuso, Schenectady, NY (US);

David James, Schenectady, NY (US);

Inventors:

Christopher James Chuah, Schenectady, NY (US);

Roger Bull, Burton Upon Trent, GB;

James Sudworth, Burton Upon Trent, GB;

Vincent Boccanfuso, Schenectady, NY (US);

David James, Schenectady, NY (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); G01R 31/36 (2006.01);
U.S. Cl.
CPC ...
H01M 10/44 (2013.01); H01M 10/443 (2013.01); H01M 10/448 (2013.01); H01M 10/48 (2013.01); H01M 10/486 (2013.01); G01R 31/3624 (2013.01); G01R 31/3679 (2013.01);
Abstract

A system and method of use including a controller responsive to a deviation in absolute value or relative slope and operable to terminate a discharge operation in an energy storage device is provided. The absolute value or relative slope is determined at sampling frequency based upon a combination of measured operating parameters, for example, potential and current. Any deviation in the absolute value or relative slope indicates that a threshold limit in the available energy of the system has been reached, for example when active materials in the device are at a point of depletion, indicating a need to cease the discharge operation. The system and method operate on a real-time basis, providing instantaneous SOH information with regard to the device.


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