Processing

Please wait...

Settings

Settings

Goto Application

1. WO2006122628 - ALLOYED ZINC POWDERS WITH PIERCED PARTICLES FOR ALKALINE BATTERIES

Publication Number WO/2006/122628
Publication Date 23.11.2006
International Application No. PCT/EP2006/003657
International Filing Date 21.04.2006
IPC
H01M 4/42 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
38of elements or alloys
42Alloys based on zinc
H01M 4/24 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
24Electrodes for alkaline accumulators
B22F 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition
C22C 18/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
18Alloys based on zinc
CPC
B22F 1/0014
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
0003Metallic powders per se; Mixtures of metallic powders; Metallic powders mixed with a lubricating or binding agent
0007Metallic powder characterised by its shape or structure, e.g. fibre structure
0011Metallic powder characterised by size or surface area only
0014by size mixtures or distribution
B22F 2009/086
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
9Making metallic powder or suspensions thereof
02using physical processes
06starting from liquid material
08by casting, e.g. through sieves or in water, by atomising or spraying
082atomising using a fluid
086Cooling after atomisation
B22F 2998/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
2998Supplementary information concerning processes or compositions relating to powder metallurgy
B22F 2999/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
2999Aspects linked to processes or compositions used in powder metallurgy
B22F 9/08
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
9Making metallic powder or suspensions thereof
02using physical processes
06starting from liquid material
08by casting, e.g. through sieves or in water, by atomising or spraying
B22F 9/10
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
9Making metallic powder or suspensions thereof
02using physical processes
06starting from liquid material
08by casting, e.g. through sieves or in water, by atomising or spraying
10using centrifugal force
Applicants
  • UMICORE [BE]/[BE] (AllExceptUS)
  • HENNINOT, Christophe [BE]/[BE] (UsOnly)
  • STRAUVEN, Yvan [BE]/[BE] (UsOnly)
Inventors
  • HENNINOT, Christophe
  • STRAUVEN, Yvan
Priority Data
05076173.319.05.2005EP
60/683,31723.05.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ALLOYED ZINC POWDERS WITH PIERCED PARTICLES FOR ALKALINE BATTERIES
(FR) POUDRES DE ZINC EN ALLIAGE DESTINEES AUX BATTERIES ALCALINES AVEC DES PARTICULES PERCEES AVEC AU MOINS UN TROU
Abstract
(EN)
The invention concerns alloyed zinc powders for alkaline batteries and a method to manufacture such powders . The powders are characterised by the presence of particles pierced with at least one hole. This appears to benefit the high drain discharge capacity while preserving the process ability of the powder, and the shelf life and the gassing behaviour of the batteries . The invented powders can be manufactured using centrifugal atomisation in a cooled, oxygen-depleted atmosphere.
(FR)
L'invention concerne des poudres de zinc en alliage, destinées aux batteries alcalines, et un procédé pour fabriquer ces poudres. Les poudres sont caractérisées par la présence de particules percées avec au moins un trou. Cela apporte visiblement l'avantage d'une capacité élevée de décharge de drain tout en préservant la capacité de traiter la poudre, et la durée de conservation ainsi que le comportement de gazage des batteries. Les poudres de l'invention peuvent être fabriquées par atomisation à centrifuge dans une atmosphère refroidie appauvrie en oxygène.
Latest bibliographic data on file with the International Bureau