CN110828910A - Method for reducing voltage high wave of zinc-silver reserve battery - Google Patents
Method for reducing voltage high wave of zinc-silver reserve battery Download PDFInfo
- Publication number
- CN110828910A CN110828910A CN201911082638.3A CN201911082638A CN110828910A CN 110828910 A CN110828910 A CN 110828910A CN 201911082638 A CN201911082638 A CN 201911082638A CN 110828910 A CN110828910 A CN 110828910A
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- Prior art keywords
- zinc
- positive electrode
- silver
- reserve battery
- silver reserve
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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
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/26—Processes of manufacture
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- 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 scheme discloses a method for reducing voltage high wave of a zinc-silver reserve battery in the technical field of batteries, which comprises a positive electrode of the zinc-silver reserve battery, silver powder and a metal net provided with a metal wire; the silver powder is evenly coated on the metal mesh, and is pressed into a positive electrode pressing sheet in a special positive electrode pressing sheet die at proper pressure, and then the prepared positive electrode is placed in high temperature for more than 8 hours. The scheme in the scheme can reduce the voltage high wave of the zinc-silver reserve battery so as to improve the reliability of the zinc-silver reserve battery.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a method for reducing voltage high waves of a zinc-silver reserve battery.
Background
The zinc-silver reserve battery is used as a main chemical power supply and is mainly applied to the field of special equipment, one of the main advantages is high working voltage precision, the allowable range of the working voltage tolerance of a 28V battery is usually 5V (upper tolerance +3V, lower tolerance-2V) namely 26-31V, and the aim of controlling the working voltage precision of the battery can be achieved by adopting the number of single batteries or adopting the measure of strictly controlling the generation of divalent silver oxide under the general condition. However, a large pulse current exists in most zinc-silver reserve batteries, the number of the single batteries is usually fixed, the batteries are limited by the quality and the external dimensions of the batteries, the aim of controlling the working voltage precision of the batteries cannot be achieved by increasing or decreasing the number of the single batteries, and the aim of controlling the working voltage precision of the batteries cannot be achieved by independently controlling all monovalent silver oxide generated by positive electrodes during formation of the single batteries.
Disclosure of Invention
The invention aims to provide a method for reducing the voltage high wave of a zinc-silver reserve battery so as to improve the working voltage of the zinc-silver reserve battery.
The method for reducing the voltage high wave of the zinc-silver reserve battery comprises a positive electrode of the zinc-silver reserve battery, silver powder and a metal net provided with a metal wire; the method is characterized in that: the silver powder is evenly coated on the metal net, the positive electrode and the metal net are pressed into a positive electrode pressing piece in a special positive electrode pressing piece die at proper pressure, and the prepared positive electrode is placed in high temperature for more than 8 hours.
The beneficial effect of this scheme: the invention is characterized in that the positive electrode tablet produced by the prior art is bundled and fastened by a metal mold and then is placed in high temperature for more than 8 hours, so that the active substance on the surface layer of the positive electrode is converted from bivalent silver oxide into monovalent silver oxide, and the chemical equationFormula (II): 4AgO → 2Ag2O+O2And ℃,. monovalent silver oxide has higher resistivity than divalent silver oxide, so the internal resistance of the battery is also higher, and the discharge working voltage is lower, thereby realizing the purpose of reducing the voltage high wave of the zinc-silver reserve battery. Compared with the prior art, the method has the obvious function of reducing the voltage high wave of the zinc-silver reserve battery, and the method is convenient to operate, simple and easy to implement. Through tests, the electrodes in the single battery in the prior art are subjected to high-temperature treatment, and the zero-second load voltage of the single battery is averagely reduced by 0.07V-0.10V. The voltage of the zinc-silver reserve battery produced by the invention is averagely 1.4V-2.0V lower than that of the zinc-silver reserve battery produced by the prior art, and the problem of high discharge voltage of the zinc-silver reserve battery is solved. The method has a remarkable effect of eliminating high waves for the battery with low working current density at the initial discharge stage, so that the working voltage precision of the zinc-silver reserve battery can meet the requirement, and the working reliability of the zinc-silver reserve battery can be improved.
And further comprising a zinc oxide negative electrode, wrapping the positive electrode pressing sheets one by using a diaphragm, overlapping the wrapped positive electrode pressing sheets and the zinc oxide negative electrode in a crossed manner, putting the overlapped positive and negative electrodes into a device for formation, adding electrolyte for formation charging, washing to be neutral after charging is finished, and drying to obtain the prepared positive and negative electrodes.
Further, the prepared positive electrode is bundled and fastened by a metal mold and is placed in an environment temperature of 180-220 ℃.
Further, it was left at the above temperature for 9 to 10 hours.
Drawings
FIG. 1 is a discharge curve of a battery I assembled by a positive electrode prepared by a method for reducing the voltage high wave of a zinc-silver reserve battery and a negative electrode produced in the prior art in a paired mode and a battery II assembled by the positive electrode and the negative electrode prepared in the prior art under the same working load condition.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
example (b):
a method for reducing the voltage high wave of a zinc-silver reserve battery comprises a positive electrode of the zinc-silver reserve battery, silver powder, a zinc oxide negative electrode and a metal net provided with a metal wire; uniformly coating silver powder on a metal net, pressing the silver powder into positive electrode pressing sheets in a special positive electrode pressing sheet die at proper pressure, wrapping the positive electrode pressing sheets one by using diaphragms, overlapping the wrapped positive electrode pressing sheets and zinc oxide negative electrodes in a crossed manner, then putting the overlapped positive and negative electrodes into an appliance for formation, injecting electrolyte for formation charging, washing the positive and negative electrodes to be neutral after the charging is finished, and drying the positive and negative electrodes to obtain prepared positive and negative electrodes; and then placing the prepared positive electrode in an environment temperature of 200 ℃ for 9 hours, naturally cooling to room temperature, and then matching with the negative electrode produced by the prior art to assemble the battery. The battery is formed by connecting 20 single batteries in series, the discharge current is constant current 15A, the working voltage requirement is not more than 31V, the requirement is met, and the working voltage of the battery which is produced by directly matching and assembling the positive electrode and the negative electrode in the prior art exceeds 31V and does not meet the requirement.
The invention comprises the following components:
(1) the purity of the silver powder is not less than 98%, and specific indexes are shown in table 1;
(2) the temperature of a positive electrode treatment environment is 200 ℃;
(3) the positive electrode was held at high temperature for 9 h.
TABLE 1 reactive silver powder specifications
| Serial number | Item | Silver powder |
| 1 | Silver content | ＞98％ |
| 2 | Copper content | ＜0.005％ |
| 3 | Iron content | ＜0.005％ |
| 4 | Nitrate radical content | ＜0.05％ |
| 5 | Water content | / |
| 6 | Apparent specific gravity | 1.30～1.80 |
| 7 | Activity (availability) | ＞60％ |
The positive electrode produced by the prior art is tightly bound by a mould and kept at the ambient temperature of 200 ℃ for 1 hour, so that the active substance on the surface layer of the positive electrode is converted from bivalent silver oxide into monovalent silver oxide, the internal resistance of the positive electrode is changed, and the discharge voltage of the zinc-silver storage battery is changed. The theory of reducing the voltage high wave of the zinc-silver reserve battery is as follows: the surface composition of the positive electrode of the zinc-silver reserve battery is changed by high-temperature treatment, namely, the divalent silver oxide of the active substance on the surface layer is decomposed into monovalent silver oxide (see a chemical reaction equation in detail), and the resistivity of the monovalent silver oxide is higher than that of the divalent silver oxide, so that the internal resistance of the battery is also higher, and the discharge working voltage is lower, thereby realizing the purpose of reducing the voltage high wave of the zinc-silver reserve battery.
4AgO→2Ag2O+O2↑
The invention discloses a method for reducing high-wave voltage of a zinc-silver reserve battery. In the invention, the positive electrode produced according to the prior art is tightly bound by a mould, kept at 200 ℃ for 9 hours and naturally cooled to room temperature. The invention determines the processing technology of the positive electrode of the zinc-silver reserve battery, and the processed positive electrode can effectively reduce the voltage high wave when the battery discharges, thereby ensuring that the working voltage precision of the zinc-silver reserve battery meets the requirement and improving the working reliability of the zinc-silver reserve battery. The method has the advantages of simple requirement on equipment, simple and easy operation, high safety, no pollution in the process and good application prospect.
Claims (4)
1. A method for reducing the voltage high wave of a zinc-silver reserve battery comprises a positive electrode of the zinc-silver reserve battery, silver powder and a metal net provided with a metal wire; the method is characterized in that: the silver powder is evenly coated on the metal net, the positive electrode and the metal net are pressed into a positive electrode pressing piece in a special positive electrode pressing piece die at proper pressure, and the prepared positive electrode is placed in high temperature for more than 8 hours.
2. The method for reducing the voltage high wave of the zinc-silver reserve battery according to claim 1, which is characterized in that: the positive electrode pressing sheets are wrapped by using diaphragms one by one, the wrapped positive electrode pressing sheets and the zinc oxide negative electrodes are overlapped in a crossed mode, the overlapped positive and negative electrodes are placed into a forming device, electrolyte is filled into the forming device for forming charging, and the positive and negative electrodes are washed to be neutral and dried after charging is completed to obtain the prepared positive and negative electrodes.
3. The method for reducing the voltage high wave of the zinc-silver reserve battery according to claim 2, characterized in that: the prepared positive electrode is bundled and fastened by a metal mold and is placed in an environment temperature of 180-220 ℃.
4. The method for reducing the voltage high wave of the zinc-silver reserve battery according to claim 3, characterized in that: it is left at the above temperature for 9 to 10 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911082638.3A CN110828910A (en) | 2019-11-07 | 2019-11-07 | Method for reducing voltage high wave of zinc-silver reserve battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911082638.3A CN110828910A (en) | 2019-11-07 | 2019-11-07 | Method for reducing voltage high wave of zinc-silver reserve battery |
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| CN110828910A true CN110828910A (en) | 2020-02-21 |
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| CN201911082638.3A Pending CN110828910A (en) | 2019-11-07 | 2019-11-07 | Method for reducing voltage high wave of zinc-silver reserve battery |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323723A (en) * | 2020-03-27 | 2020-06-23 | 惠州亿纬集能有限公司 | Method for improving lithium battery capacity tolerance judgment precision |
| CN113871738A (en) * | 2021-09-24 | 2021-12-31 | 贵州梅岭电源有限公司 | Electrode charging method for improving capacity of zinc-silver reserve battery |
| CN114335411A (en) * | 2021-12-21 | 2022-04-12 | 贵州梅岭电源有限公司 | Preparation method of positive plate for improving voltage of zinc-silver storage battery |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5741188B2 (en) * | 1976-10-01 | 1982-09-01 | ||
| JPS58665B2 (en) * | 1976-07-16 | 1983-01-07 | 日立マクセル株式会社 | silver oxide battery |
| CN106169563A (en) * | 2016-09-12 | 2016-11-30 | 贵州梅岭电源有限公司 | A kind of zinc-silver cell possessing stabilized electrodes voltage |
-
2019
- 2019-11-07 CN CN201911082638.3A patent/CN110828910A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58665B2 (en) * | 1976-07-16 | 1983-01-07 | 日立マクセル株式会社 | silver oxide battery |
| JPS5741188B2 (en) * | 1976-10-01 | 1982-09-01 | ||
| CN106169563A (en) * | 2016-09-12 | 2016-11-30 | 贵州梅岭电源有限公司 | A kind of zinc-silver cell possessing stabilized electrodes voltage |
Non-Patent Citations (5)
| Title |
|---|
| 张永光: "贮备式锌—银电池氧化银电极的电化学性能研究", 《 CNKI优秀硕士学位论文全文库 工程科技Ⅰ辑》 * |
| 张瑞阁等: "锌银电池银电极的性能特点和研究现状", 《电源技术》 * |
| 张辉: "用于锌银蓄电池氧化银电极的研究进展", 《稀有金属材料与工程》 * |
| 徐刚: "锌银电池消除高坪阶电压后大电流密度放电的研究", 《万方学位论文》 * |
| 王武: "扣式过氧化银电池的制法", 《电池》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323723A (en) * | 2020-03-27 | 2020-06-23 | 惠州亿纬集能有限公司 | Method for improving lithium battery capacity tolerance judgment precision |
| CN111323723B (en) * | 2020-03-27 | 2022-05-13 | 惠州亿纬集能有限公司 | Method for improving lithium battery capacity tolerance judgment precision |
| CN113871738A (en) * | 2021-09-24 | 2021-12-31 | 贵州梅岭电源有限公司 | Electrode charging method for improving capacity of zinc-silver reserve battery |
| CN113871738B (en) * | 2021-09-24 | 2023-09-26 | 贵州梅岭电源有限公司 | Electrode charging method for improving capacity of zinc-silver reserve battery |
| CN114335411A (en) * | 2021-12-21 | 2022-04-12 | 贵州梅岭电源有限公司 | Preparation method of positive plate for improving voltage of zinc-silver storage battery |
| CN114335411B (en) * | 2021-12-21 | 2024-01-30 | 贵州梅岭电源有限公司 | Preparation method of positive plate for improving voltage of zinc-silver storage battery |
| 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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