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1. WO2020114708 - DEEP POUCH CELL AND METHOD OF MANUFACTURING SAME

Publication Number WO/2020/114708
Publication Date 11.06.2020
International Application No. PCT/EP2019/080545
International Filing Date 07.11.2019
IPC
H01M 2/02 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
02Cases, jackets or wrappings
B21D 22/20 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
22Shaping without cutting, by stamping, spinning, or deep-drawing
20Deep-drawing
B29C 43/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
43Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
H01M 10/04 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
04Construction or manufacture in general
H01M 10/0585 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
058Construction or manufacture
0585of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
CPC
B21D 22/203
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
22Shaping without cutting, by stamping, spinning, or deep-drawing
20Deep-drawing
203of compound articles
B29C 43/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
43Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
H01M 10/0436
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
0436Small-sized flat cells or batteries for portable equipment
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/0585
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
058Construction or manufacture
0585of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 2/0202
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
02Cases, jackets or wrappings
0202for small-sized cells or batteries, e.g. miniature battery or power cells, batteries or cells for portable equipment
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • LEVIN, Eugene
Priority Data
16/212,20306.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DEEP POUCH CELL AND METHOD OF MANUFACTURING SAME
(FR) CELLULE EN FORME DE POCHE PROFONDE ET SON PROCÉDÉ DE FABRICATION
Abstract
(EN)
An electrochemical pouch cell includes a pouch cell housing and an electrode assembly disposed in the housing. The housing is formed of a single blank that is progressively drawn to form first and second recesses in the sheet, where the first recess coincides with a portion of the second recess. The blank is then folded so that the recesses are aligned and open facing each other. The electrode assembly is disposed in the space defined within and between the recesses, and flange portions of the material surrounding the recesses are sealed together to form a sealed electrochemical cell in which one side of the cell is free of the flange. The progressive drawing process along with the configuration of the recesses allows the cell housing to have an increased depth relative to some conventional pouch cell housings.
(FR)
L'invention concerne une cellule en forme de poche électrochimique comprenant un boîtier de cellule en forme de poche et un ensemble d'électrodes disposé dans le boîtier. Le boîtier est formé d'une seule ébauche qui est progressivement étirée pour former des premier et second évidements dans la feuille, le premier évidement coïncidant avec une partie du second évidement. L'ébauche est ensuite pliée de telle sorte que les évidements sont alignés et ouverts les uns en face des autres. L'ensemble d'électrodes est disposé dans l'espace défini à l'intérieur et entre les évidements, et des parties de bride du matériau entourant les évidements sont scellées ensemble pour former une cellule électrochimique scellée dans laquelle un coté de la cellule est libre de la bride. Le processus d'étirage progressif conjointement avec la configuration des évidements permet au boîtier de cellules d'avoir une profondeur accrue par rapport à certains boîtiers de cellules de poche classiques.
Also published as
Latest bibliographic data on file with the International Bureau