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1. WO2007142428 - HIGH CAPACITY BATTERY CELL EMPLOYED WITH TWO OR MORE UNIT CELLS

Publication Number WO/2007/142428
Publication Date 13.12.2007
International Application No. PCT/KR2007/002653
International Filing Date 31.05.2007
IPC
H01M 2/10 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
CPC
H01M 2/1016
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
1016Cabinets, cases, fixing devices, adapters, racks or battery packs
H01M 2/1022
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
1016Cabinets, cases, fixing devices, adapters, racks or battery packs
1022for miniature batteries or batteries for portable equipment
H01M 2/1072
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
1016Cabinets, cases, fixing devices, adapters, racks or battery packs
1072for starting, lighting or ignition batteries; Vehicle traction batteries; Stationary or load leading batteries
H01M 2/202
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
20Current conducting connections for cells
202Interconnectors for or interconnection of the terminals of adjacent or distinct batteries or cells
H01M 2/24
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
20Current conducting connections for cells
22Fixed connections, i.e. not intended for disconnection
24Intercell connections through partitions, e.g. in a battery case
H01M 6/42
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
6Primary cells; Manufacture thereof
42Grouping of primary cells into batteries
Applicants
  • LG CHEM, LTD. [KR]/[KR] (AllExceptUS)
  • YOO, Kwangho [KR]/[KR] (UsOnly)
  • RYU, Ji Heon [KR]/[KR] (UsOnly)
  • PARK, Hyunwoo [KR]/[KR] (UsOnly)
Inventors
  • YOO, Kwangho
  • RYU, Ji Heon
  • PARK, Hyunwoo
Agents
  • SOHN, Chang Kyu
Priority Data
10-2006-005014305.06.2006KR
Publication Language English (EN)
Filing Language Korean (KO)
Designated States
Title
(EN) HIGH CAPACITY BATTERY CELL EMPLOYED WITH TWO OR MORE UNIT CELLS
(FR) CELLULE DE BATTERIE HAUTE CAPACITÉ EMPLOYÉE AVEC DEUX CELLULES UNITAIRES OU PLUS
Abstract
(EN)
Disclosed herein is a secondary battery including two or more stacking-folding type cells ('unit cells') manufactured by winding small-sized electrode assemblies ('bicells') constructed in a stacking type structure in which electrodes having the same polarity are located at opposite sides of each electrode assembly and small-sized electrode assemblies ('full cells') constructed in a stacking type structure in which electrodes having different polarities are located at opposite sides of each electrode assembly using a long separator sheet, wherein the unit cells are mounted in a battery case, each unit cell has one or more electrode terminals protruding from each end of each unit cell, and the unit cells are mounted in a receiving part of the battery case such that the unit cells are arranged in a stacking arrangement structure or a plane arrangement structure while the electrode terminals of the unit cells are connected with each other. According to the present invention, the electrical and physical coupling force between the unit cells is increased. Consequently, the high-capacity secondary battery according to the present invention exhibits an improved structural stability. In addition, it is possible to greatly increase the capacity of the secondary battery according to the present invention through a simple assembly process.
(FR)
La présente invention décrit une batterie secondaire comprenant au moins deux cellules à empilement-pliage (« cellules unitaires ») fabriquées en enroulant des ensembles d'électrodes de petite dimension (« bicellules ») et en empilant lesdits ensembles d'électrodes de petite dimension (« bicellules ») en une structure dans laquelle des électrodes de même polarité sont placées sur des côtés opposés de chaque ensemble d'électrodes et des ensembles d'électrodes de petite dimension (« cellules pleines ») empilées en une structure dans laquelle des électrodes de polarités différentes sont placés sur des côtés opposés de chaque ensemble d'électrodes et séparés par une longue feuille séparatrice, les cellules unitaires étant montées dans un boîtier de batterie, chaque cellule unitaire ayant une ou plusieurs bornes d'électrode saillant de chaque extrémité de chaque cellule unitaire, et les cellules unitaires étant montées dans une partie du boîtier de batterie prévue à cet effet, de telle sorte que les cellules unitaires sont disposées dans une structure d'empilement ou d'arrangement plane, alors que les bornes d'électrode des cellules unitaires sont connectées les unes aux autres. Selon la présente invention, la force de couplage électrique et physique entre les cellules unitaires est augmentée. En conséquence, la batterie secondaire haute capacité présente une meilleure stabilité structurale. De plus, un procédé d'assemblage simple permet d'augmenter fortement la capacité de la batterie secondaire.
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