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1. WO1996041386 - SEPARATOR FOR ALKALINE ELECTROCHEMICAL CELLS

Publication Number WO/1996/041386
Publication Date 19.12.1996
International Application No. PCT/US1996/009713
International Filing Date 07.06.1996
Chapter 2 Demand Filed 23.12.1996
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
H01M 2/16 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
14Separators; Membranes; Diaphragms; Spacing elements
16characterised by the material
H01M 2/18 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
14Separators; Membranes; Diaphragms; Spacing elements
18characterised by the shape
H01M 6/08 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
6Primary cells; Manufacture thereof
04Cells with aqueous electrolyte
06Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
08with cup-shaped electrodes
CPC
H01M 2/0235
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
022Cases of cylindrical or round shape
0225with cup-shaped terminals
023with one cup-shaped terminal
0235with a collector centrally disposed in the active mass, e.g. Leclanch cells
H01M 2/1606
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
14Separators; Membranes; Diaphragms; Spacing elements
16characterised by the material
1606comprising fibrous material
H01M 2/1626
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
14Separators; Membranes; Diaphragms; Spacing elements
16characterised by the material
1606comprising fibrous material
162Organic fibrous material
1626Natural fibres, e.g. cotton, cellulose
H01M 2/1653
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
14Separators; Membranes; Diaphragms; Spacing elements
16characterised by the material
164comprising non-fibrous material
1653Organic non-fibrous material
H01M 2/1666
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
14Separators; Membranes; Diaphragms; Spacing elements
16characterised by the material
1666comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M 2/18
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
14Separators; Membranes; Diaphragms; Spacing elements
18characterised by the shape
Applicants
  • EVEREADY BATTERY COMPANY, INC. [US]/[US]
Inventors
  • URRY, Lewis, Frederick
Agents
  • WELSH, Robert, W.
  • FRASER, Stewart, A.
Priority Data
08/477,01607.06.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SEPARATOR FOR ALKALINE ELECTROCHEMICAL CELLS
(FR) SEPARATEUR POUR PILES ELECTROCHIMIQUES ALCALINES
Abstract
(EN)
An electrochemical cell (10) includes a first active electrode material (18) having a tubular shape closed at one end and open at the other, a second active electrode material (20) disposed within the cavity of the tubular shaped first active electrode material, a scrolled separator (24) disposed between the sidewalls of the cavity and the second active electrode material, and an insulator disc (26) disposed between the closed end of the cavity and the second active electrode material. The scrolled separator and insulator disc cooperate to provide a liner which provides a continuous electrical and physical barrier between the cavity walls and the second active electrode material disposed within the cavity. The cell utilizes a simple design which minimizes space occupied by the separator and insulator disc, while maximizing the available area for ion mass transfer between the electrodes, whereby greater cell efficiency and improved performance characteristics are achieved.
(FR)
Cette pile électrochimique (10) comprend une première électrode active (18), de forme tubulaire, fermée à une de ses extrémités et ouverte à l'autre, une seconde électrode active (20) disposée dans la cavité formée par cette première électrode, un séparateur enroulé (24) placé entre les parois latérales de la cavité et la seconde électrode active, ainsi qu'un disque isolant (26) disposé entre l'extrémité fermée de la cavité et la seconde électrode active. Le séparateur enroulé et le disque isolant coopèrent afin de constituer une chemise, laquelle forme une barrière continue électrique et physique entre les parois de la cavité et la seconde électrode active placée dans la cavité. La conception simple de cette pile permet de réduire au minimum l'espace occupé par le séparateur et le disque isolant, tout en maximalisant la surface disponible pour le transfert de masse d'ions entre les électrodes; on obtient ainsi une pile présentant des caractéristiques d'efficacité supérieure et de performances améliorées.
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