CN108598516A - Alkaline zinc-manganese battery - Google Patents
Alkaline zinc-manganese battery Download PDFInfo
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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
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Abstract
The invention relates to the field of alkaline zinc-manganese batteries, in particular to an alkaline zinc-manganese battery which comprises an anode cap (1), an anode ring (2), a steel shell (3), a current collector copper nail (4), a cathode zinc paste (5), diaphragm paper (6), a sealing ring (7), a support ring (8) and a cathode bottom (9), wherein the anode ring (2) consists of electrolytic manganese dioxide, a conductive agent graphite and electrolyte, and the cathode zinc paste (5) comprises zinc powder, a binder, an expanding agent, an electrolyte potassium hydroxide solution and polyethylene glycol 2000. The method does not influence or even slightly improve the discharge performance of the alkaline manganese battery, effectively solves the problem of zinc paste expansion, obviously reduces the hydrogen evolution amount of the battery, and greatly reduces the leakage risk of the battery. Therefore, the discharge performance of the battery is effectively improved, the storage life of the battery is prolonged, and the safety performance of the battery is obviously improved.
Description
Technical Field
The invention relates to the field of alkaline zinc-manganese batteries, in particular to an alkaline zinc-manganese battery.
Background
In the existing primary battery energy system, the alkaline zinc-manganese battery (alkaline manganese battery) is widely applied by virtue of a series of advantages of higher energy density, low price, good portability and the like. With the emergence of various high-power and high-current discharging electric appliances, the market demand is continuously improved, more strict challenges are provided for the performances of the battery in all aspects, the performances of the existing battery far cannot meet the market demands, and the development of the alkaline zinc-manganese battery faces huge challenges.
In order to respond to the challenge, various novel alkaline manganese battery formulas are developed and applied, the performances of the battery in the aspects of high power, large current and the like are continuously developed and broken through, and the development of the alkaline manganese battery is greatly promoted while the market demand is met. However, the alkaline manganese battery still has many problems to be solved, such as the deterioration of the storage performance of the battery caused by the expansion of the zinc paste, the damage of the electrical appliance caused by the leakage of the liquid, the safety accident, etc. The prior general solution is to search a novel mercury-replacing corrosion inhibitor to solve the problems of gas generation and liquid leakage of the battery and to search a better binder and a dispersant to solve the problem of zinc paste expansion. Although a certain effect is achieved, the addition of the mercury-substitute corrosion inhibitor generally brings about the harm of reduced electrical properties, and the introduction of the excellent dispersant generally means the increase of cost.
Disclosure of Invention
The invention aims to provide an alkaline zinc-manganese battery, which solves the problems that the existing battery calamine cream has large hydrogen evolution amount, is easy to expand, has frequent liquid leakage phenomenon and finally shortens the service life of the battery.
In order to solve the technical problems, the invention adopts the following technical scheme:
an alkaline zinc-manganese dioxide battery comprises an anode cap, an anode ring, a steel shell, a current collector copper nail, a cathode calamine cream, diaphragm paper, a sealing ring, a support ring and an anode bottom, wherein the anode ring consists of electrolytic manganese dioxide, conductive agent graphite and electrolyte, and the cathode calamine cream comprises zinc powder, a binder, an expanding agent, electrolyte potassium hydroxide solution and polyethylene glycol 2000.
Furthermore, in the positive electrode ring, the electrolytic manganese dioxide contains copper, nickel, iron, mercury and other elements with the content of less than or equal to 0.03% and the moisture content of less than or equal to 3%, and the conductive agent is one or more of graphite, porous graphite, expanded graphite, graphene and other carbon materials.
Furthermore, in the cathode zinc paste, the zinc powder is alloy zinc powder, and the cathode also contains 0.01-0.035 wt% of indium and bismuth respectively.
Furthermore, in the negative electrode zinc paste, the content of polyethylene glycol 2000 is 0.01-0.5 wt%.
Furthermore, in the negative electrode, the additive also contains one or more of 0.01-0.3 wt% of sodium silicate, sodium polyacrylate, indium oxide and hydroxide, barium oxide and hydroxide, perfluoro active agent and dodecyl benzene sulfonic acid.
Further, the concentration range of potassium hydroxide in the electrolyte is 25% -40%, and the concentration range of the electrolyte in the zinc paste of the diaphragm and the negative electrode is 30% -40%.
Furthermore, the electrolyte contains 0.003-0.004% of zinc oxide by weight ratio.
The preparation method of the negative electrode zinc paste comprises the following steps:
mechanically mixing a certain amount of zinc powder, zinc oxide, a binder and an expanding agent, and stirring in vacuum to obtain dry powder; dissolving a certain amount of zinc oxide in a potassium hydroxide solution to prepare a zinc paste electrolyte; the zinc paste electrolyte and the dry powder are mixed and stirred for 4 hours in vacuum.
Furthermore, the zinc powder content is 90-96 wt%, the zinc oxide content is 4-4.7 wt%, the binder content is 0.21-0.3 wt%, and the expanding agent content is 0.5-0.6 wt%.
Further, the preparation method of the zinc paste of the negative electrode comprises the following steps:
after a certain proportion of zinc powder, a binder and an expanding agent are mechanically mixed and dry-mixed, the mixture is transferred into a vacuum mixer, electrolyte is added while stirring, then the mixture is vacuum-stirred for half an hour to prepare the calamine cream, and the functional additive polyethylene glycol 2000 is also added in the dry-mixing process.
Compared with the prior art, the invention has the beneficial effects that: the discharge performance of the alkaline manganese battery is not influenced or even slightly improved, the problem of zinc paste expansion is effectively solved, the hydrogen evolution quantity of the battery is obviously reduced, and the leakage risk of the battery is greatly reduced. Therefore, the discharge performance of the battery is effectively improved, the storage life of the battery is prolonged, and the safety performance of the battery is obviously improved.
The invention aims to provide a multifunctional alkaline manganese battery additive and application thereof in reducing zinc paste expansion and internal gas generation of an alkaline manganese battery and prolonging the storage life of the alkaline manganese battery.
The invention also aims to provide a formula process of the alkaline manganese battery containing the novel multifunctional additive polyethylene glycol 2000 (PEG 2000), the formula process fully exerts the dispersion and film forming effects of the additive, and utilizes the effective functional groups of the additive to form a uniform protective film on the surface of active substance zinc powder, so that the zinc powder is dispersed more uniformly in electrolysis, the occurrence of zinc paste expansion is effectively inhibited, meanwhile, the direct contact area of zinc and alkali liquor is reduced through the effect of the protective film, the occurrence of self-discharge reaction of the zinc powder is inhibited, the utilization rate of the zinc powder is improved, and the gas yield of the battery is obviously reduced.
Drawings
FIG. 1 is a schematic structural diagram of an alkaline zinc-manganese dioxide battery according to the present invention.
FIG. 2 is a discharge diagram of the control group I and the embodiment I, II, IV, and VII in the 1000mA,10s/min,1h/d discharge mode.
FIG. 3 is a discharge diagram of the control group II and the examples III, V, VI and VIII discharged to different voltages in the 3.9. Omega. And 24h/d discharge mode.
FIG. 4 is a graph comparing the results of the nine-zincate expansion experiments of the control group three and the example.
FIG. 5 is a graph comparing the gas production of the cells after discharge in the control group II and the embodiments I, II, V and eight.
FIG. 6 is a comparison of leakage of control group IV and control group IV, eleven stored at 60 deg.C for three weeks.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Figure 1 shows an embodiment of an alkaline zinc-manganese battery of the invention: the alkaline zinc-manganese dioxide battery comprises an anode cap 1, an anode ring 2, a steel shell 3, a current collector copper nail 4, a cathode calamine cream 5, diaphragm paper 6, a sealing ring 7, a support ring 8 and a cathode bottom 9, wherein the anode ring 2 consists of electrolytic manganese dioxide, conductive agent graphite and electrolyte, and the cathode calamine cream 5 comprises zinc powder, a binder, an expanding agent, electrolyte potassium hydroxide solution and polyethylene glycol 2000.
According to another embodiment of the alkaline zinc-manganese dioxide battery of the present invention, the content of copper, nickel, iron, mercury, and other elements contained in the electrolytic manganese dioxide in the positive electrode ring 2 is less than or equal to 0.03%, and the content of moisture is less than or equal to 3%, respectively, and the conductive agent is one or more of graphite, porous graphite, expanded graphite, graphene, and other carbon materials.
According to another embodiment of the alkaline zinc-manganese dioxide cell of the present invention, the zinc powder in the negative electrode zinc paste 5 is an alloy zinc powder, and the negative electrode further contains indium and bismuth in an amount of 0.01-0.035 wt%, respectively.
According to another embodiment of the alkaline zinc-manganese dioxide battery, the content of the polyethylene glycol 2000 in the negative electrode zinc paste 5 is 0.01-0.5 wt%.
According to another embodiment of the alkaline zinc-manganese dioxide battery of the present invention, the additive in the negative electrode further comprises one or more of sodium silicate, sodium polyacrylate, indium oxide and hydroxide, barium oxide and hydroxide, perfluoro-active agent and dodecylbenzene sulfonic acid in an amount of 0.01-0.3 wt%.
According to another embodiment of the alkaline zinc-manganese dioxide battery, the concentration of potassium hydroxide in the electrolyte is in the range of 25% -40%, and the concentration of the electrolyte in the zinc paste of the separator and the negative electrode is in the range of 30% -40%.
According to another embodiment of the alkaline zinc-manganese battery of the present invention, the electrolyte contains 0.003-0.004% by weight of zinc oxide.
According to another embodiment of the alkaline zinc-manganese dioxide battery of the invention, the manufacturing method of the zinc paste of the negative electrode comprises the following steps: mechanically mixing a certain amount of zinc powder, zinc oxide, a binder and an expanding agent, and stirring in vacuum to obtain dry powder; dissolving a certain amount of zinc oxide in a potassium hydroxide solution to prepare a zinc paste electrolyte; and mixing the electro-hydraulic zinc paste and the dry powder, and stirring for 4 hours in vacuum.
According to another embodiment of the invention an alkaline zinc-manganese cell is provided, said zinc powder being present in an amount of 90-96% wt, zinc oxide in an amount of 4-4.7% wt, binder in an amount of 0.21-0.3% wt and expansion agent in an amount of 0.5-0.6% wt.
Preferably, the zinc powder content is 94.8% by weight, the zinc oxide content is 4.4% by weight, the binder content is 0.26% by weight, and the swelling agent content is 0.54% by weight.
Several different fabrication examples are described below:
example one
Preparing the alkaline manganese battery containing the multifunctional additive:
(1) The negative electrode zinc paste is prepared according to the preparation method of the negative electrode formula containing additive polyethylene glycol 2000 (PEG 2000). The addition amount of the novel multifunctional additive is 0.05 wt% of the cathode zinc paste.
(2) Preparing accessories of each part of the battery according to a normal production process, wherein the production process is unchanged.
(3) The battery anode and the electrolyte formula are consistent with those of the control group.
(4) And assembling and producing a finished battery on an LR06 type alkaline manganese battery production line.
The tests below were carried out with LR06 type cells, it being noted that the invention is not limited to LR06 type alkaline manganese cells. The invention can obtain the positive effect consistent with the invention on other types of alkaline manganese batteries.
The operation of the inventive calamine cream expansion experiment is as follows:
(1) The experimental zinc paste containing the multifunctional additive is prepared according to the preparation steps of the cathode formula.
(2) And (3) putting a certain amount of the experimental zinc cream into a clean measuring cup, and performing jolt ramming until no bubbles exist in the zinc cream.
(3) 5ml of liquid paraffin is put on the upper layer of the zinc cream for liquid seal. The mixture was allowed to stand at room temperature, observed and data were recorded.
The gas production is measured by an experimental device, the device comprises a gas collection part and a scale display part, and the gas collection part consists of a gas collection funnel and a sealed glass tube with scales. The specific operation steps are as follows:
(1) An experimental battery pack containing the novel multifunctional additive is prepared according to the preparation method of the cathode formula.
(2) The discharge test was performed according to the relevant standard.
(3) And taking the discharged experimental battery packs, respectively disassembling, collecting the gas in the batteries by using a gas collecting device, reading and recording data.
The battery leakage testing steps are as follows:
and assembling the finished battery according to the battery production process, taking a certain number of samples of the experimental group, placing the samples in a high-temperature box at 60 ℃, placing the samples at constant temperature, and observing the leakage condition of the battery.
FIG. 1 shows the discharge behavior of the alkali-manganese cell, which was measured by the instrument after discharge in the discharge mode of 1000mA,10s/min and 1 h/d. And the data is sorted.
And carrying out a gas production measurement experiment on the discharged battery.
Example two
The negative electrode zinc paste containing the novel multifunctional additive is prepared by the same method as in the first embodiment, the production process is the same as in the first embodiment, and the gas production test of the battery is the same as in the first embodiment. Except that the addition amount of the novel multifunctional additive polyethylene glycol 2000 is 0.5 percent by weight. Gas production experiments were performed after the batteries were discharged.
EXAMPLE III
The negative electrode zinc paste containing the novel multifunctional additive of the invention was prepared by the same method as in example one, and the production process was the same as in example one, except that the amount of the novel multifunctional additive of the invention, polyethylene glycol 2000, was 0.5 wt%. And discharged in a 3.9 omega, 24h/d discharge mode. And recording the data.
Example four
The same method as that of the first embodiment is adopted to prepare the negative electrode zinc paste containing the multifunctional additive, the production process is the same as that of the first embodiment, and the difference is that the addition amount of the novel multifunctional additive polyethylene glycol 2000 is 0.01 wt%.
EXAMPLE five
The negative electrode zinc paste containing the novel multifunctional additive is prepared by adopting the same method as the three phases of the embodiment, the discharge mode is the same as the third embodiment, the production process is the same as the first embodiment, and the test of the gas production rate of the battery is the same as the first embodiment. The difference is that the addition amount of the novel multifunctional additive polyethylene glycol 2000 is 0.2 percent by weight. And discharged in a 3.9 omega, 24h/d discharge mode. And recording the data.
EXAMPLE six
The negative electrode calamine cream containing the novel multifunctional additive is prepared by adopting the same method as the three phases of the embodiment, the discharge mode is the same as the third embodiment, the production process is the same as the first embodiment, and the difference is that the addition amount of the novel multifunctional additive polyethylene glycol 2000 is 0.06 wt%.
EXAMPLE seven
The cathode calamine cream containing the novel multifunctional additive is prepared by adopting the same method as the first embodiment, the discharge mode and the production process are the same as the first embodiment, except that the addition amount of the novel multifunctional additive polyethylene glycol 2000 is 0.09 wt%.
Example eight
The negative electrode calamine cream containing the novel multifunctional additive is prepared by adopting the same method as the three phases of the embodiment, the discharge mode is the same as the third embodiment, the production process is the same as the first embodiment, and the difference is that the adding amount of the multifunctional additive polyethylene glycol 2000 is 0.3 wt%.
Practice nine
The negative electrode calamine cream containing the novel multifunctional additive is prepared by adopting the same formula as in the first embodiment, and 30ml of calamine cream is placed in a measuring cup and vibrated to be solid until no bubble exists in the calamine cream.
5ml of liquid paraffin is used for liquid sealing, so that the zinc paste is ensured to be isolated from the air. The change in liquid level was recorded every 24 hours and allowed to stand for two weeks.
Example ten
The finished batteries are prepared by the same method as the embodiment, 100 batteries are randomly selected and placed in a thermostat at 60 ℃, the battery is kept stand for three weeks, and the leakage condition of the batteries is observed.
EXAMPLE eleven
The finished battery is prepared by the method similar to the embodiment, 100 batteries are randomly selected and placed in a constant temperature box at 60 ℃, except that in the process of preparing the cathode calamine cream, the addition amount of the novel multifunctional additive polyethylene glycol 2000 is 0.5 wt%. And standing for three weeks, and observing the leakage condition of the battery.
Comparative examples
The preparation steps of the cathode zinc paste are as follows:
(1) The corresponding active substances of zinc powder, zinc oxide, binder and expanding agent are accurately weighed according to the proportion of the formula.
(2) The zinc powder, the zinc oxide, the binder and the expanding agent are mechanically mixed and stirred in vacuum.
(3) Dissolving a certain amount of zinc oxide in a potassium hydroxide solution to prepare the zinc paste electrolyte.
(4) And (3) weighing the zinc paste electrolyte according to the formula, mixing the zinc paste electrolyte with the dry powder in the step (2), and stirring for 4 hours in vacuum.
The manufacturing process of the control group of alkaline manganese batteries is completely consistent with that of the first embodiment, and the gas measuring device and the experimental method, the zinc paste expansion experimental method and the experimental instrument, and the high-temperature leakage experimental device and the experimental steps are all consistent with those of the first embodiment.
Control group one
The same discharge was carried out at 1000mA,10s/min,1h/d discharge mode as in example one, and the data was recorded for comparative analysis with examples one, two, four and seven.
Control group two
Discharge was carried out in a 3.9 Ω,24h/d discharge mode in accordance with the three phases of the examples, and data were recorded for comparative analysis with the three, five, six and eight examples. And taking the discharged battery for disassembly, measuring the gas production of the battery, and comparing and analyzing the obtained experimental data with the experimental data of the first, second, fifth and eighth embodiments.
Control group III
The negative electrode calamine cream is prepared by adopting the same formula as the control group I, 30ml of calamine cream is placed in a measuring cup and is tamped until no air bubbles are left in the calamine cream, and the data is analyzed in comparison with the nine embodiments.
Control group IV
Producing common finished batteries according to a normal production process.
By adopting the same experimental scheme and the same sampling means as the experimental scheme of the eleventh example, 100 common batteries are taken to carry out a high-temperature storage experiment at 60 ℃, the leakage situation is observed, and the obtained data are compared and analyzed with the tenth example and the eleventh example.
The case implementation effects all strongly support the beneficial effects of the invention, and the effect examples are provided as follows for evaluating the product performance provided by the embodiments of the invention.
FIG. 2 is a discharge diagram of the control group I and the example I, II, IV, and VII in the 1000mA,10s/min,1h/d discharge mode. It can be seen from the figure that the discharge performance of the examples is better than that of the control group under the same discharge mode, and the difference is obvious. The discharge time of the control group is 426min on average when the discharge reaches 0.9V, and the discharge time of the embodiment is 527min on average, so that the multifunctional additive can effectively improve the dispersion condition of active substances in the zinc paste, thereby improving the activity of the zinc powder, improving the utilization rate of the zinc powder under the same cut-off voltage, and having better electrical performance than that of the control group.
FIG. 3 is a discharge diagram of the control group II and the examples III, V, VI, and VIII discharged to different voltages in the 3.9 Ω,24h/d discharge mode. It can be seen from the figure that, in accordance with the conclusion of the first control group, the discharge performance of the examples is better than that of the control group under the same discharge mode. The experimental conclusion proves that the novel multifunctional additive can effectively improve the utilization rate of active substances, so that the discharge performance of the alkaline manganese battery is improved.
FIG. 4 is a graph comparing the results of the nine-zincate expansion experiments of the control group three and the example. As can be seen from the figure, after one week of storage, the control group has obvious liquid level rise, the zinc cream expands to cause fault, the crack phenomenon is obvious, the crack is continuously increased along with the increase of storage time, the fault is continuously raised, and the liquid level rises excessively after two weeks of storage, so that the liquid paraffin overflows the measuring cup. In contrast, the zincate pastes prepared in example nine, which contain the novel multifunctional additive of the present invention, were stored with a slowly rising liquid level, were consistent with the initial state, and showed no adverse phenomena such as cracking and splitting. The multifunctional additive can effectively disperse the zinc paste and improve the existing state of the zinc paste, which is attributed to that the hydrophilic groups in the polyethylene glycol can be firmly combined with the electrolyte, so that the contact between the active substance and the electrolyte is more uniform, the material properties such as density, viscosity and the like of the zinc paste have better consistency, and the expansion of the zinc paste in the storage process is inhibited, thereby greatly improving the storage performance of the battery.
FIG. 5 is a graph comparing the gas production of the cells after discharge in the control group II and the embodiments I, II, V and eight. The result shows that the gas production of the battery of the comparison group is 2.5 ml/cell, the average gas production of the battery in the corresponding embodiment is 0.7 ml/cell, and the gas production of the embodiment is less than 1/3 of that of the comparison group, which shows that the multifunctional additive can greatly inhibit the hydrogen evolution reaction in the battery, and through the chemical reaction of the additive, a uniform protective film is formed on the surface of the active substance, so that the hydrogen evolution reaction sites of the active substance are reduced, the self-discharge process of the zinc powder in the battery is inhibited, the gas production of the battery is greatly reduced, the liquid leakage risk of the battery is obviously reduced, and the safety performance of the battery is improved.
Fig. 6 is a comparative graph of a four control versus a ten, eleven example leaky battery stored at 60 c for three weeks. Through a 60 ℃ high-temperature storage experiment of 100 batteries, the result shows that a leakage battery appears in a control group, and as can be seen from the figure, the battery shell is corroded due to electrolyte leakage, so that great potential safety hazards exist. The multifunctional additive can effectively inhibit the self-discharge reaction of active substance zinc powder and reduce the gas production in the battery, thereby improving the safety performance of the battery from the source.
Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (10)
1. The utility model provides an alkaline zinc-manganese dioxide battery, includes at the bottom of positive cap (1), anodal ring (2), steel casing (3), mass flow body copper nail (4), negative pole calamine cream (5), diaphragm paper (6), sealing washer (7), support ring (8) and the negative pole (9), its characterized in that: the anode ring (2) is composed of electrolytic manganese dioxide, conductive agent graphite and electrolyte, and the cathode zinc paste (5) comprises zinc powder, a binder, an expanding agent, electrolyte potassium hydroxide solution and polyethylene glycol 2000.
2. The alkaline zinc-manganese dioxide cell of claim 1, wherein: in the positive electrode, the content of elements such as copper, nickel, iron, mercury and the like contained in the electrolytic manganese dioxide is respectively less than or equal to 0.03%, the content of water is less than or equal to 3%, and the conductive agent is one or more of carbon materials such as graphite, porous graphite, expanded graphite, graphene and the like.
3. The alkaline zinc-manganese dioxide cell of claim 1, wherein: in the negative electrode zinc paste (5), the zinc powder is alloy zinc powder, and the negative electrode also contains 0.01-0.035 wt% of indium and bismuth respectively.
4. The alkaline zinc-manganese dioxide cell of claim 1, wherein: in the negative electrode zinc paste (5), the content of polyethylene glycol 2000 is 0.01-0.5 wt%.
5. The alkaline zinc-manganese dioxide cell of claim 1, wherein: in the negative electrode, the additive also contains one or more of 0.01-0.3 wt% of sodium silicate, sodium polyacrylate, indium oxide and hydroxide, barium oxide and hydroxide, perfluoro active agent and dodecyl benzene sulfonic acid.
6. The alkaline zinc-manganese dioxide cell of claim 1, wherein: the concentration range of potassium hydroxide in the electrolyte is 25-40%, and the concentration range of the electrolyte in the zinc paste of the diaphragm and the negative electrode is 30-40%.
7. The alkaline zinc-manganese dioxide cell of claim 6, wherein: according to the weight ratio, the electrolyte contains 0.003-0.004% of zinc oxide.
8. The alkaline zinc-manganese dioxide cell of claim 1, wherein: the preparation method of the zinc paste of the negative electrode comprises the following steps:
mechanically mixing a certain amount of zinc powder, zinc oxide, a binder and an expanding agent, and stirring in vacuum to obtain dry powder; dissolving a certain amount of zinc oxide in a potassium hydroxide solution to prepare a zinc paste electrolyte; the zinc paste electrolyte and the dry powder are mixed and stirred for 4 hours in vacuum.
9. The alkaline zinc-manganese dioxide cell of claim 1, wherein: the zinc powder content is 90-96 wt%, the zinc oxide content is 4-4.7 wt%, the binder content is 0.21-0.3 wt%, and the expanding agent content is 0.5-0.6 wt%.
10. The alkaline zinc-manganese dioxide cell of claim 9, wherein: 94.8 wt% zinc powder, 4.4 wt% zinc oxide, 0.26 wt% binder and 0.54 wt% swelling agent.
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| CN109786774A (en) * | 2018-12-28 | 2019-05-21 | 福建南平南孚电池有限公司 | Alkaline zinc-manganese battery |
| CN110289413A (en) * | 2019-05-14 | 2019-09-27 | 福建南平南孚电池有限公司 | Negative electrode zinc paste and alkaline battery with same |
| CN110416486A (en) * | 2019-07-25 | 2019-11-05 | 福建南平南孚电池有限公司 | Method for mixing, anode and the alkaline battery of the positive electrode of alkaline battery |
| CN110707371A (en) * | 2019-10-14 | 2020-01-17 | 吉凯阳科技(杭州)有限公司 | Alkaline zinc-manganese rechargeable battery |
| CN110783560A (en) * | 2019-09-24 | 2020-02-11 | 宁波泰意德过滤技术有限公司 | Alkaline zinc-manganese battery containing modified nano zinc powder and preparation method thereof |
| CN111082086A (en) * | 2019-12-24 | 2020-04-28 | 中银（宁波）电池有限公司 | High-voltage zinc-manganese battery and preparation method thereof |
| CN112652782A (en) * | 2020-12-09 | 2021-04-13 | 广东至道先进土木工程材料技术研究有限公司 | Environment-friendly geopolymer battery and preparation method thereof |
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| CN110783560A (en) * | 2019-09-24 | 2020-02-11 | 宁波泰意德过滤技术有限公司 | Alkaline zinc-manganese battery containing modified nano zinc powder and preparation method thereof |
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| CN111082086A (en) * | 2019-12-24 | 2020-04-28 | 中银（宁波）电池有限公司 | High-voltage zinc-manganese battery and preparation method thereof |
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| CN112652782A (en) * | 2020-12-09 | 2021-04-13 | 广东至道先进土木工程材料技术研究有限公司 | Environment-friendly geopolymer battery and preparation method thereof |
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