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Patent Searching and Data


Title:
BATTERY BALANCING DEVICE AND BATTERY PACK INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2020/141772
Kind Code:
A1
Abstract:
A battery balancing device according to one embodiment of the present invention comprises: a first selection unit for selectively connecting each of a plurality of batteries, which are included in a first battery group, between a first node and a second node; a resistance adjustment unit for connecting a first resistance element, a second resistance element, serial circuits of the first and second resistance elements or parallel circuits of the first and second resistance elements between the first node and the second node; and a control unit. The control unit determines, as a first balancing target, at least one of the plurality of batteries on the basis of a first voltage signal for indicating the voltage of each battery. The first selection unit connects the first balancing target between the first node and the second node. The control unit controls the resistance adjustment unit on the basis of the voltage difference between the voltage of the first balancing target and a reference voltage.

Inventors:
YOON HO-BYUNG (KR)
Application Number:
PCT/KR2019/018143
Publication Date:
July 09, 2020
Filing Date:
December 19, 2019
Export Citation:
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Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H02J7/00; H01M10/42
Foreign References:
KR20140135427A2014-11-26
KR20100040804A2010-04-21
US20090009133A12009-01-08
US20080094042A12008-04-24
KR20110004245A2011-01-13
KR20190000896A2019-01-03
KR20150089627A2015-08-05
Other References:
See also references of EP 3806271A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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