BATTERY PROTECTION CIRCUIT AND BATTERY PACK COMPRISING SAME

Title:

BATTERY PROTECTION CIRCUIT AND BATTERY PACK COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2019/035523

Kind Code:

A1

Abstract:

A battery protection circuit comprises: a charging control switch serially connected to a high current path between a battery module composed of a plurality of serially connected cells and a plurality of pack terminals; a battery controller for controlling the charging control switch on the basis of a cell voltage of each of the plurality of cells; and a plurality of first protection circuits, each being connected to each of the plurality of cells on the high current path, for cutting off or connecting an electric current flowing through a corresponding cell on the basis of the cell voltage of the corresponding cell of the plurality of cells, wherein the plurality of first protection circuits may comprise: at least one switch serially connected between neighboring cells or between any one of the plurality of cells and a first pack terminal of the plurality of pack terminals; and a cell controller for controlling the at least one switch according to the cell voltage of the corresponding cell.

Inventors:

HAN JONG-CHAN (KR)
LEE WOOJIN (KR)

Application Number:

PCT/KR2018/002841

Publication Date:

February 21, 2019

Filing Date:

March 09, 2018

Export Citation:

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Assignee:

SAMSUNG SDI CO LTD (KR)

International Classes:

H02J7/00

Foreign References:

KR20140048737A	2014-04-24
KR20170053886A	2017-05-17
KR20080082869A	2008-09-12
KR20090014897A	2009-02-11
US20080116851A1	2008-05-22

Other References: