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1. (WO1997016861) CORE BODY FOR ELECTRODE BASE OF SECONDARY CELL, PROCESS FOR MANUFACTURING THE CORE BODY, ELECTRODE BASE OF SECONDARY CELL, PROCESS FOR MANUFACTURING THE ELECTRODE BASE, AND ELECTRODE AND BATTERY USING THEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/016861 International Application No.: PCT/JP1996/003220
Publication Date: 09.05.1997 International Filing Date: 01.11.1996
Chapter 2 Demand Filed: 14.05.1997
IPC:
C25D 3/56 (2006.01) ,C25D 5/12 (2006.01) ,H01M 4/66 (2006.01) ,H01M 4/70 (2006.01) ,H01M 4/80 (2006.01) ,H01M 6/10 (2006.01) ,H01M 10/30 (2006.01)
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
D
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
3
Electroplating; Baths therefor
02
from solutions
56
of alloys
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
D
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
5
Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
10
Electroplating with more than one layer of the same or of different metals
12
at least one layer being of nickel or chromium
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
64
Carriers or collectors
66
Selection of materials
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
64
Carriers or collectors
70
characterised by shape or form
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
64
Carriers or collectors
70
characterised by shape or form
80
Porous plates, e.g. sintered carriers
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
6
Primary cells; Manufacture thereof
04
Cells with aqueous electrolyte
06
Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
10
with wound or folded electrodes
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
24
Alkaline accumulators
30
Nickel accumulators
Applicants:
TOYO KOHAN CO., LTD. [JP/JP]; 4-3, Kasumigaseki 1-chome Chiyoda-ku Tokyo 100, JP (AllExceptUS)
MATSUO, Satoru [JP/JP]; JP (UsOnly)
OOMURA, Hitoshi [JP/JP]; JP (UsOnly)
TASHIRO, Hirohumi [JP/JP]; JP (UsOnly)
YAZAKI, Katsuhito [JP/JP]; JP (UsOnly)
Inventors:
MATSUO, Satoru; JP
OOMURA, Hitoshi; JP
TASHIRO, Hirohumi; JP
YAZAKI, Katsuhito; JP
Agent:
OHTA, Akio; Toyo Kohan Co., Ltd. 4-3, Kasumigaseki 1-chome Chiyoda-ku Tokyo 100, JP
Priority Data:
7/30985802.11.1995JP
Title (EN) CORE BODY FOR ELECTRODE BASE OF SECONDARY CELL, PROCESS FOR MANUFACTURING THE CORE BODY, ELECTRODE BASE OF SECONDARY CELL, PROCESS FOR MANUFACTURING THE ELECTRODE BASE, AND ELECTRODE AND BATTERY USING THEM
(FR) NOYAU POUR BASE D'ELECTRODE D'ACCUMULATEUR, PROCEDE DE FABRICATION DU NOYAU, BASE D'ELECTRODE D'ACCUMULATEUR, PROCEDE DE FABRICATION DE LA BASE D'ELECTRODE, ET ELECTRODE ET PILE LES UTILISANT
Abstract:
(EN) A substrate for secondary cells which is produced by forming a porous metal layer on a metal base by sintering and has such an excellent adhesion to the base that the sintered porous metal body does not separate nor come off from the base when the substrate is wound into a cylindrical battery. A metal layer having a melting point lower than that of the base is formed on at least one side of the base and a metal powder layer which has a melting point higher than that of the metal layer is formed on the metal layer, and then, sintering the metal powder at a temperature higher than the melting point of the metal layer and lower than the melting points of the base and the metal powder. Alternatively, at least one side of the base is boronized and a layer of powder of metal which forms an eutectic alloy with boron is formed on the boronized surface. Next the metal powder is sintered at a temperature higher than the melting point of the eutectic alloy and lower than the melting points of the base body and metal powder, thus forming a porous layer.
(FR) On produit un substrat destiné à des accumulateurs en formant par frittage une couche de métal poreux sur une base métallique. Le substrat adhère suffisamment bien à la base pour que le noyau en métal poreux fritté ne s'en sépare ou ne s'en décolle pas quand on enroule le substrat pour constituer une pile cylindrique. On forme une couche métallique ayant un point de fusion inférieur à celui de la base sur au moins un côté de la base et on forme une couche de poudre métallique ayant un point de fusion supérieur à celui de la couche métallique sur la couche métallique, puis on fritte la poudre métallique à une température supérieure au point de fusion de la couche métallique et inférieure aux points de fusion de la base et de la poudre métallique. Dans une variante on peut enduire de bore au moins un côté de la base et former une couche de poudre métallique qui constitue une alliage eutectique avec le bore de la surface enduite de bore. Puis on fritte la poudre métallique à une température supérieure au point de fusion de l'alliage eutectique et inférieure aux points de fusion de la base et de la poudre métallique, ce qui donne une couche poreuse.
Designated States: AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KR, KZ, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
SG52018EP0859419US6245463JP3537828CN1201553CA2236421
KR1019990067287AU1996073398