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1. WO2020141772 - BATTERY BALANCING DEVICE AND BATTERY PACK INCLUDING SAME

Publication Number WO/2020/141772
Publication Date 09.07.2020
International Application No. PCT/KR2019/018143
International Filing Date 19.12.2019
IPC
H02J 7/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H01M 10/42 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
CPC
H01M 10/42
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/4257
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
4257Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
H01M 2010/4271
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
4271Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
H02J 7/00
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/0019
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
0013acting upon several batteries simultaneously or sequentially
0014Circuits for equalisation of charge between batteries
0019using switched or multiplexed charge circuits
H02J 7/0024
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
0013acting upon several batteries simultaneously or sequentially
0024Parallel/serial switching of connection of batteries to charge or load circuit
Applicants
  • 주식회사 엘지화학 LG CHEM, LTD. [KR]/[KR]
Inventors
  • 윤호병 YOON, Ho-Byung
Agents
  • 특허법인 필앤온지 PHIL & ONZI INT'L PATENT & LAW FIRM
Priority Data
10-2019-000089603.01.2019KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) BATTERY BALANCING DEVICE AND BATTERY PACK INCLUDING SAME
(FR) DISPOSITIF D'ÉQUILIBRAGE DE BATTERIE ET BLOC-BATTERIE COMPORTANT CELUI-CI
(KO) 배터리 밸런싱 장치 및 그것을 포함하는 배터리 팩
Abstract
(EN)
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.
(FR)
Un mode de réalisation de la présente invention concerne un dispositif d'équilibrage de batterie comprenant : une première unité de sélection pour connecter sélectivement chaque batterie d'une pluralité de batteries, qui sont incluses dans un premier groupe de batteries, entre un premier noeud et un second noeud ; une unité de réglage de résistance pour connecter un premier élément de résistance, un second élément de résistance, des circuits série des premier et second éléments de résistance ou des circuits parallèles des premier et second éléments de résistance entre le premier noeud et le second noeud ; et une unité de commande. L'unité de commande détermine, en tant que première cible d'équilibrage, au moins une batterie de la pluralité de batteries sur la base d'un premier signal de tension pour indiquer la tension de chaque batterie. La première unité de sélection connecte la première cible d'équilibrage entre le premier noeud et le second noeud. L'unité de commande commande l'unité de réglage de résistance sur la base de la différence de tension entre la tension de la première cible d'équilibrage et une tension de référence.
(KO)
본 발명의 일 실시예에 따른 배터리 밸런싱 장치는, 제1 배터리 그룹에 포함되는 상기 복수의 배터리 각각을 제1 노드와 제2 노드의 사이에 선택적으로 연결하는 제1 선택부; 제1 저항 소자, 제2 저항 소자, 상기 제1 및 제2 저항 소자의 직렬 회로 또는 상기 제1 및 제2 저항 소자의 병렬 회로를 상기 제1 노드와 상기 제2 노드의 사이에 연결하는 저항 조절부; 및 제어부를 포함한다. 상기 제어부는, 각각의 상기 배터리의 전압을 나타내는 제1 전압 신호를 기초로, 상기 복수의 배터리 중 적어도 하나를 제1 밸런싱 대상으로 결정한다. 상기 제1 선택부는, 상기 제1 밸런싱 대상을 상기 제1 노드 및 상기 제2 노드의 사이에에 결한다. 상기 제어부는, 상기 제1 밸런싱 대상의 전압과 기준 전압 간의 전압차를 기초로, 상기 저항 조절부를 제어한다.
Also published as
JP2020560974
EP2019907938
Latest bibliographic data on file with the International Bureau