CN114171721A - Zinc electrode in high-power zinc-silver reserve battery and preparation method thereof - Google Patents
Zinc electrode in high-power zinc-silver reserve battery and preparation method thereof Download PDFInfo
- Publication number
- CN114171721A CN114171721A CN202111329312.3A CN202111329312A CN114171721A CN 114171721 A CN114171721 A CN 114171721A CN 202111329312 A CN202111329312 A CN 202111329312A CN 114171721 A CN114171721 A CN 114171721A
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- China
- Prior art keywords
- zinc
- electrode
- zinc powder
- powder
- power
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- 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.)
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 38
- 239000011701 zinc Substances 0.000 title claims abstract description 38
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title abstract description 12
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 33
- 238000002156 mixing Methods 0.000 claims description 17
- 239000011787 zinc oxide Substances 0.000 claims description 17
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 239000002562 thickening agent Substances 0.000 claims description 13
- 239000013543 active substance Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 235000014692 zinc oxide Nutrition 0.000 description 14
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- 239000006071 cream Substances 0.000 description 2
- 229940105847 calamine Drugs 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052864 hemimorphite Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- CPYIZQLXMGRKSW-UHFFFAOYSA-N zinc;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+3].[Fe+3].[Zn+2] CPYIZQLXMGRKSW-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/24—Alkaline accumulators
- H01M10/32—Silver accumulators
-
- 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
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/244—Zinc electrodes
-
- 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
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
-
- 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
Abstract
The invention belongs to the technical field of zinc electrode preparation, and particularly relates to a zinc electrode in a high-power zinc-silver reserve battery and a preparation method thereof.
Description
Technical Field
The invention belongs to the technical field of zinc electrode preparation, and particularly relates to a zinc electrode in a high-power zinc-silver reserve battery and a preparation method thereof.
Background
The zinc-silver battery is widely applied to the fields of national defense, military and the like due to the advantages of high specific energy, high specific power, stable discharge voltage, high-rate discharge performance and the like.
At present, the design of a large pulse discharge type zinc-silver battery is that a silver electrode is excessive, and the silver content in the silver electrode is increased as much as possible after charging. The zinc electrode active material is mainly prepared from zinc oxide: zinc powder 3: 1, adding a thickening agent into the mixed zinc powder to form paste, putting the conductor framework into a sheet-making die, coating the mixed zinc paste, performing compression molding, assembling the mixed zinc paste, silver electrodes and a diaphragm in a staggered manner, and filling the mixed zinc paste into a chemical tank for charging. The mixed zinc powder is applied to a zinc plate of a large-pulse discharge type zinc-silver battery, and the high content of the zinc oxide powder causes high internal resistance of the battery and lower output voltage, thereby influencing the power output capability of the battery.
Disclosure of Invention
The invention provides a zinc electrode in a high-power zinc-silver reserve battery and a preparation method thereof, aiming at the defects of the prior art.
The method is realized by the following technical scheme:
the active substance of the zinc electrode is formed by mixing zinc oxide, metal zinc powder and nano zinc powder, wherein the mass ratio of the zinc oxide to the metal zinc powder is 1: 1.
The dosage of the nano zinc powder is 2-5% of the total mass of the active substances.
The particle size of the nano zinc powder is 100-300 nm.
The preparation method of the zinc electrode in the high-power zinc-silver reserve battery comprises the following steps:
1) preparing mixed zinc powder: weighing zinc oxide and metal zinc powder with equal mass, then uniformly mixing, adding nano zinc powder, and uniformly mixing to obtain mixed zinc powder;
2) preparing mixed zinc paste: adding a thickening agent into the mixed zinc powder and stirring to form a paste;
3) preparing a zinc electrode: and putting the conductor framework into a sheet making mold, coating the mixed zinc paste, and then pressing and molding.
The dosage of the thickening agent is 30-40ml/100g of mixed zinc powder.
The coating thickness of the mixed calamine cream is calculated according to the contained cream amount (apparent density) in unit volume.
The high-power zinc-silver reserve battery calculates the charging time and voltage according to the theoretical capacity of the anode and the cathode, and ensures 100 percent conversion of zinc oxide.
Has the advantages that:
the invention improves the conductivity of the negative plate by changing the proportion of the active substance in the negative electrode, can reduce the internal voltage drop of the battery under the same load condition, improves the output voltage capability, greatly improves the power output capability and specific power of the zinc-silver reserve battery, and reduces the weight and volume of the battery.
The invention directly improves the conductivity by improving the zinc powder content in the mixed zinc powder, effectively reduces the ohmic internal resistance of the battery, and adopts the nano zinc powder to enable the nano zinc powder to permeate into the porous zinc electrode, thereby further enhancing the conductivity of the zinc electrode.
Detailed Description
The following is a detailed description of the embodiments of the present invention, but the present invention is not limited to these embodiments, and any modifications or substitutions in the basic spirit of the embodiments are included in the scope of the present invention as claimed in the claims.
Example 1
A zinc electrode in a high-power zinc-silver reserve battery is characterized in that the active substance of the zinc electrode is formed by mixing 48.5% of zinc oxide, 48.5% of metal zinc powder and 3% of nano zinc powder according to mass percentage; the particle size of the nano zinc powder is 100 nm;
the preparation method of the zinc electrode in the high-power zinc-silver reserve battery comprises the following steps:
1) preparing mixed zinc powder: weighing zinc oxide and metal zinc powder with equal mass, then uniformly mixing, adding nano zinc powder, and uniformly mixing to obtain mixed zinc powder;
2) preparing mixed zinc paste: adding a proper amount of thickening agent into the mixed zinc powder, and stirring to form a paste; wherein, 30ml of thickening agent is used for every 100g of mixed zinc powder;
3) preparing a zinc electrode: and putting the conductor framework into a sheet making mold, coating the mixed zinc paste, and then pressing and molding.
Example 2
A zinc electrode in a high-power zinc-silver reserve battery is characterized in that the active substance of the zinc electrode is formed by mixing 47.5% of zinc oxide, 47.5% of metal zinc powder and 5% of nano zinc powder according to mass percentage; the particle size of the nano zinc powder is 300 nm;
the preparation method of the zinc electrode in the high-power zinc-silver reserve battery comprises the following steps:
1) preparing mixed zinc powder: weighing zinc oxide and metal zinc powder with equal mass, then uniformly mixing, adding nano zinc powder, and uniformly mixing to obtain mixed zinc powder;
2) preparing mixed zinc paste: adding a proper amount of thickening agent into the mixed zinc powder, and stirring to form a paste; wherein 40ml of thickening agent is used for every 100g of mixed zinc powder;
3) preparing a zinc electrode: and putting the conductor framework into a sheet making mold, coating the mixed zinc paste, and then pressing and molding.
Example 3
A zinc electrode in a high-power zinc-silver reserve battery is characterized in that the active substance of the zinc electrode is formed by mixing 49% of zinc oxide, 49% of metal zinc powder and 2% of nano zinc powder according to mass percentage; the particle size of the nano zinc powder is 200 nm;
the preparation method of the zinc electrode in the high-power zinc-silver reserve battery comprises the following steps:
1) preparing mixed zinc powder: weighing zinc oxide and metal zinc powder with equal mass, then uniformly mixing, adding nano zinc powder, and uniformly mixing to obtain mixed zinc powder;
2) preparing mixed zinc paste: adding a proper amount of thickening agent into the mixed zinc powder, and stirring to form a paste; wherein 35ml of thickening agent is used for every 100g of mixed zinc powder;
3) preparing a zinc electrode: and putting the conductor framework into a sheet making mold, coating the mixed zinc paste, and then pressing and molding.
Example 4
A zinc electrode in a high-power zinc-silver reserve battery is characterized in that the active substance of the zinc electrode is formed by mixing 48% of zinc oxide, 48% of metal zinc powder and 4% of nano zinc powder according to mass percentage; the particle size of the nano zinc powder is 100 nm;
the preparation method of the zinc electrode in the high-power zinc-silver reserve battery comprises the following steps:
1) preparing mixed zinc powder: weighing zinc oxide and metal zinc powder with equal mass, then uniformly mixing, adding nano zinc powder, and uniformly mixing to obtain mixed zinc powder;
2) preparing mixed zinc paste: adding a proper amount of thickening agent into the mixed zinc powder, and stirring to form a paste; wherein 35ml of thickening agent is used for every 100g of mixed zinc powder;
3) preparing a zinc electrode: and putting the conductor framework into a sheet making mold, coating the mixed zinc paste, and then pressing and molding.
Experimental example 1
The zinc cathode of example 1 and a silver electrode were assembled into a single cell, 30% KOH electrolyte was added for 30 seconds, and 200mA/cm was used2The discharge current density of the discharge is increased by 4.8 percent, and the discharge voltage of the single body is increased from 1.24V to 1.30V.
Connecting 20 single batteries in series to form a battery pack, and controlling the voltage at 200mA/cm at normal temperature2Discharging at the discharge current density, wherein the output voltage of the battery pack is not lower than 26.0V.
Claims (5)
1. A zinc electrode in a high-power zinc-silver reserve battery is characterized in that the active substance of the zinc electrode is made of zinc oxide, metallic zinc powder and nano zinc powder; wherein the zinc oxide and the metal zinc powder are in equal mass ratio.
2. The zinc electrode in the high-power zinc-silver reserve battery of claim 1, wherein the amount of the nano zinc powder is 2-5% of the mass fraction of the active substance.
3. The zinc electrode in the high-power zinc-silver reserve battery as claimed in claim 1 or 2, wherein the particle size of the nano zinc powder is 100-300 nm.
4. The method for preparing the zinc electrode in the high-power zinc-silver reserve battery according to claim 1, which is characterized by comprising the following steps:
1) preparing mixed zinc powder: weighing zinc oxide and metal zinc powder with equal mass, then uniformly mixing, adding nano zinc powder, and uniformly mixing to obtain mixed zinc powder;
2) preparing mixed zinc paste: adding a thickening agent into the mixed zinc powder and stirring to form a paste;
3) preparing a zinc electrode: and putting the conductor framework into a sheet making mold, coating the mixed zinc paste, and then pressing and molding.
5. The method for preparing a zinc electrode in a high-power zinc-silver reserve battery of claim 4, wherein the amount of the thickening agent is 30-40ml per 100g of the blended zinc powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111329312.3A CN114171721A (en) | 2021-11-10 | 2021-11-10 | Zinc electrode in high-power zinc-silver reserve battery and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111329312.3A CN114171721A (en) | 2021-11-10 | 2021-11-10 | Zinc electrode in high-power zinc-silver reserve battery and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114171721A true CN114171721A (en) | 2022-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111329312.3A Pending CN114171721A (en) | 2021-11-10 | 2021-11-10 | Zinc electrode in high-power zinc-silver reserve battery and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114171721A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115832480A (en) * | 2022-11-28 | 2023-03-21 | 贵州梅岭电源有限公司 | Charging control method for high-power zinc-silver storage battery |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197635A (en) * | 1978-05-01 | 1980-04-15 | Yardney Electric Corporation | Method of making a zinc electrode |
| CN101453015A (en) * | 2007-11-28 | 2009-06-10 | 梅岭化工厂 | Zincium electrode production method for zinc-nickel battery |
| CN101685859A (en) * | 2008-09-26 | 2010-03-31 | 深圳市正信通科技有限公司 | Active slurry for zinc cathode of alkaline secondary battery |
| CN102496698A (en) * | 2011-11-29 | 2012-06-13 | 中国电子科技集团公司第十八研究所 | Active substance granulation method used for zinc electrode |
| CN103165861A (en) * | 2013-03-25 | 2013-06-19 | 河南新太行电源有限公司 | Preparation method for negative plate of zinc-silver reserve cell |
| CN106207105A (en) * | 2016-09-21 | 2016-12-07 | 贵州梅岭电源有限公司 | A kind of high-performance zinc-silver oxide cell |
| CN106941177A (en) * | 2017-04-15 | 2017-07-11 | 陈学琴 | Pouring-in star air electrode zinc-air battery |
| CN107026298A (en) * | 2017-04-15 | 2017-08-08 | 陈学琴 | Injection type zinc air cell |
| CN107221687A (en) * | 2017-06-19 | 2017-09-29 | 广州鹏辉能源科技股份有限公司 | A kind of mercury-free zinc paste composition and the mercury-free zinc and air cell with said composition |
| CN112713273A (en) * | 2020-12-18 | 2021-04-27 | 浙江金鹰瓦力新能源科技有限公司 | Preparation method of battery zinc cathode material |
-
2021
- 2021-11-10 CN CN202111329312.3A patent/CN114171721A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197635A (en) * | 1978-05-01 | 1980-04-15 | Yardney Electric Corporation | Method of making a zinc electrode |
| CN101453015A (en) * | 2007-11-28 | 2009-06-10 | 梅岭化工厂 | Zincium electrode production method for zinc-nickel battery |
| CN101685859A (en) * | 2008-09-26 | 2010-03-31 | 深圳市正信通科技有限公司 | Active slurry for zinc cathode of alkaline secondary battery |
| CN102496698A (en) * | 2011-11-29 | 2012-06-13 | 中国电子科技集团公司第十八研究所 | Active substance granulation method used for zinc electrode |
| CN103165861A (en) * | 2013-03-25 | 2013-06-19 | 河南新太行电源有限公司 | Preparation method for negative plate of zinc-silver reserve cell |
| CN106207105A (en) * | 2016-09-21 | 2016-12-07 | 贵州梅岭电源有限公司 | A kind of high-performance zinc-silver oxide cell |
| CN106941177A (en) * | 2017-04-15 | 2017-07-11 | 陈学琴 | Pouring-in star air electrode zinc-air battery |
| CN107026298A (en) * | 2017-04-15 | 2017-08-08 | 陈学琴 | Injection type zinc air cell |
| CN107221687A (en) * | 2017-06-19 | 2017-09-29 | 广州鹏辉能源科技股份有限公司 | A kind of mercury-free zinc paste composition and the mercury-free zinc and air cell with said composition |
| CN112713273A (en) * | 2020-12-18 | 2021-04-27 | 浙江金鹰瓦力新能源科技有限公司 | Preparation method of battery zinc cathode material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115832480A (en) * | 2022-11-28 | 2023-03-21 | 贵州梅岭电源有限公司 | Charging control method for high-power zinc-silver storage battery |
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