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. 06, 2016

Filed:

Sep. 24, 2014
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Ju-Hyun Kang, Daejeon, KR;

Dal-Hoon Lee, Daejeon, KR;

Sang-Hoon Lee, Daejeon, KR;

Dong-Keun Kwon, Daejeon, KR;

Yasuhito Eguchi, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); B60L 11/18 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
B60L 11/1851 (2013.01); H02J 7/0021 (2013.01); H01M 2010/4271 (2013.01); H02J 2007/0096 (2013.01);
Abstract

The present disclosure discloses a battery management system that uses a small number of opto-couplers to reduce a production cost. The battery management system is controlled to maintain a turn-off state in a normal condition. Also, switches are connected in series, and the switches are connected such that when any one switch turns on, switches connected subsequent to the turned-on switch turn on in sequential order. The turn-on of the last connected switch causes a switch turning on an opto-coupler to be turned on. As a result, when the opto-coupler turns on, a battery management device may transmit information to an external device.


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