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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.:

US 10340714 B1

PDFFull Text
Date of Patent:
Jul. 02, 2019

Filed:

Nov. 14, 2016

System for controlling output parameter of secondary battery, and method therefor

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Sun-Young Cha, Daejeon, KR;

Won-Tae Joe, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Paul Dinh

Int. Cl.
CPC ...
H02J 7/00 (2006.01); G01R 31/3842 (2019.01); G01R 31/36 (2019.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); G01K 1/02 (2006.01); B60L 53/00 (2019.01); B60L 58/12 (2019.01);
U.S. Cl.
CPC ...
H02J 7/0063 (2013.01); G01K 1/024 (2013.01); G01R 31/36 (2013.01); G01R 31/3648 (2013.01); G01R 31/3842 (2019.01); H01M 10/42 (2013.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H02J 7/007 (2013.01); H02J 7/0029 (2013.01); H02J 7/0068 (2013.01); B60L 53/00 (2019.02); B60L 58/12 (2019.02); G01K 1/022 (2013.01); H02J 2007/005 (2013.01); H02J 2007/0067 (2013.01);
Abstract

The present disclosure discloses a system and method of adjusting an output parameter of a secondary battery. The system according to the present disclosure determines a voltage, a current, and a temperature of the secondary battery, determines a state of charge of the secondary battery using the current, determines a deration target current value calculated from a maximum value of a predefined resistance change rate, which corresponds to the state of charge and the temperature, and an output maintaining time, when the voltage of the secondary battery decreases to a preset threshold voltage or lower, and provides an output parameter including at least one of the deration target current value and a deration target output value determined therefrom to a control system of a load device supplied with power from the secondary battery.

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