CA1037295A - Zinc powders for electrochemical batteries - Google Patents
Zinc powders for electrochemical batteriesInfo
- Publication number
- CA1037295A CA1037295A CA206,960A CA206960A CA1037295A CA 1037295 A CA1037295 A CA 1037295A CA 206960 A CA206960 A CA 206960A CA 1037295 A CA1037295 A CA 1037295A
- Authority
- CA
- Canada
- Prior art keywords
- zinc
- mercury
- powder
- electrochemical batteries
- zinc powders
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/42—Alloys based on zinc
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
ABSTRACT.
A process for the production of zinc powder for electrochemical batteries which require the presence of mercury, in which at least part of the mercury required in the battery is introduced into molten zinc, and the molten alloy is homogenized and transformed into powder by pulverization (atomization).
A process for the production of zinc powder for electrochemical batteries which require the presence of mercury, in which at least part of the mercury required in the battery is introduced into molten zinc, and the molten alloy is homogenized and transformed into powder by pulverization (atomization).
Description
103~Z95 The present invention relates to a new process for the preparation of zinc powder intended for the manufacture of electrochemical batteries, the said zinc powder being for instance in the form of electrodes obtained by compression.
It is known that in the batteries comprising electrodes made of zinc powder, alloyed or not, when the battery does not deliver current a prejudicial escape of gas (hydrogen) occurs with reduces the electrical capacity available and creates problems, namely construction problems.
It is known to avoid such gaseous escape by the well known practice of amalgamating the powder. However, the amounts of mercury to be used in this process of the kn~wn art are relatively important and the amalgamation constitutes ;~ in itself an expensive and delicate operation. Moreover, ~- this process has the drawback of a non-homogeneous distribution of the mercury.
`~ The present invention avoids the above mentioned draw~acks.
~~ The invention rela~e~ to a process ior the manufacture ~ of zinc powder for electrochemical batteries which .
require the presence of mercury, characterized in that all or part of the mercury required in the battery, is introduced ; into molten zinc, alloyed or not, æaid molten alloy being ~ homogenized a~d transformed lnto powder by pulverization " ; , ; - latomization).
The powder obtained by the process of the inventiohl is characterized in that the mercury contained in the powder, , ., ~ forms an homogeneous alloy with the zinc. As a consequence, ``` mercury will be available in each grain of powder in an equal and predeterminated amount un~l complete exhaustio~ of the n metal.
' . , .
It is known that in the batteries comprising electrodes made of zinc powder, alloyed or not, when the battery does not deliver current a prejudicial escape of gas (hydrogen) occurs with reduces the electrical capacity available and creates problems, namely construction problems.
It is known to avoid such gaseous escape by the well known practice of amalgamating the powder. However, the amounts of mercury to be used in this process of the kn~wn art are relatively important and the amalgamation constitutes ;~ in itself an expensive and delicate operation. Moreover, ~- this process has the drawback of a non-homogeneous distribution of the mercury.
`~ The present invention avoids the above mentioned draw~acks.
~~ The invention rela~e~ to a process ior the manufacture ~ of zinc powder for electrochemical batteries which .
require the presence of mercury, characterized in that all or part of the mercury required in the battery, is introduced ; into molten zinc, alloyed or not, æaid molten alloy being ~ homogenized a~d transformed lnto powder by pulverization " ; , ; - latomization).
The powder obtained by the process of the inventiohl is characterized in that the mercury contained in the powder, , ., ~ forms an homogeneous alloy with the zinc. As a consequence, ``` mercury will be available in each grain of powder in an equal and predeterminated amount un~l complete exhaustio~ of the n metal.
' . , .
Claims (2)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A process for the production of zinc powder con-taining mercury suitable for electrodes of electrochemical batteries, comprising introducing mercury into molten zinc and converting the molten zinc/mercury alloy obtained into powder form by atomisation.
2. Zinc powder for electrochemical batteries in which each grain consists of the same homogenous zinc-mercury alloy, as produced in accordance with the process of claim 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU68452A LU68452A1 (en) | 1973-09-19 | 1973-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1037295A true CA1037295A (en) | 1978-08-29 |
Family
ID=19727472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA206,960A Expired CA1037295A (en) | 1973-09-19 | 1974-08-13 | Zinc powders for electrochemical batteries |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5056536A (en) |
| BE (1) | BE819926A (en) |
| CA (1) | CA1037295A (en) |
| DE (1) | DE2441356C2 (en) |
| FR (1) | FR2244272B1 (en) |
| GB (1) | GB1473424A (en) |
| IT (1) | IT1021318B (en) |
| LU (1) | LU68452A1 (en) |
| NL (1) | NL7411786A (en) |
| NO (1) | NO142656C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3238240A1 (en) * | 1982-10-15 | 1984-04-19 | Grillo-Werke Ag, 4100 Duisburg | Method of producing zinc powder for alkaline batteries by atomisation |
| LU85322A1 (en) * | 1984-04-17 | 1985-11-27 | Metallurg Hoboken Overpelt A | PROCESS FOR PREPARING ZINC POWDER FOR ALKALINE BATTERIES |
| US6472103B1 (en) | 1997-08-01 | 2002-10-29 | The Gillette Company | Zinc-based electrode particle form |
| US6284410B1 (en) | 1997-08-01 | 2001-09-04 | Duracell Inc. | Zinc electrode particle form |
| US6521378B2 (en) | 1997-08-01 | 2003-02-18 | Duracell Inc. | Electrode having multi-modal distribution of zinc-based particles |
| CN114709409A (en) * | 2022-04-01 | 2022-07-05 | 三峡大学 | Preparation method and application of zinc-mercury alloy cathode of water-based zinc ion battery |
-
1973
- 1973-09-19 LU LU68452A patent/LU68452A1/xx unknown
-
1974
- 1974-08-13 GB GB3563074A patent/GB1473424A/en not_active Expired
- 1974-08-13 CA CA206,960A patent/CA1037295A/en not_active Expired
- 1974-08-26 FR FR7429154A patent/FR2244272B1/fr not_active Expired
- 1974-08-29 DE DE2441356A patent/DE2441356C2/en not_active Expired
- 1974-08-30 NO NO743119A patent/NO142656C/en unknown
- 1974-09-05 NL NL7411786A patent/NL7411786A/en not_active Application Discontinuation
- 1974-09-12 IT IT27220/74A patent/IT1021318B/en active
- 1974-09-16 BE BE148534A patent/BE819926A/en not_active IP Right Cessation
- 1974-09-19 JP JP49108268A patent/JPS5056536A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| LU68452A1 (en) | 1975-05-21 |
| AU7250074A (en) | 1976-02-19 |
| NO743119L (en) | 1975-04-14 |
| IT1021318B (en) | 1978-01-30 |
| NO142656B (en) | 1980-06-16 |
| FR2244272B1 (en) | 1978-09-15 |
| GB1473424A (en) | 1977-05-11 |
| DE2441356A1 (en) | 1975-03-20 |
| BE819926A (en) | 1975-03-17 |
| FR2244272A1 (en) | 1975-04-11 |
| DE2441356C2 (en) | 1984-04-05 |
| NL7411786A (en) | 1975-03-21 |
| JPS5056536A (en) | 1975-05-17 |
| NO142656C (en) | 1980-09-24 |
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