CN111653788A - Alkaline battery negative electrode material - Google Patents
Alkaline battery negative electrode material Download PDFInfo
- Publication number
- CN111653788A CN111653788A CN202010674823.8A CN202010674823A CN111653788A CN 111653788 A CN111653788 A CN 111653788A CN 202010674823 A CN202010674823 A CN 202010674823A CN 111653788 A CN111653788 A CN 111653788A
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- Prior art keywords
- percent
- negative electrode
- electrode material
- alkaline battery
- nano
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
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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
- H01M4/36—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
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses an alkaline battery cathode material, which belongs to the field of alkaline batteries and comprises the following components in percentage by weight: 66.5 to 67.0 percent of zinc powder, 0.17 to 0.2 percent of polyacrylic acid, 0.35 to 0.4 percent of sodium polyacrylate, 0.1 to 0.3 percent of corrosion inhibitor, 31 to 33 percent of potassium hydroxide solution and 0.1 to 0.3 percent of adhesive.
Description
Technical Field
The invention relates to the field of alkaline batteries, in particular to an alkaline battery cathode material.
Background
The alkaline battery is also called an alkaline dry battery, an alkaline zinc-manganese battery and an alkaline manganese battery, and is a variety with the best performance in a zinc-manganese battery series. Is suitable for long-term use with large discharge capacity. The battery has lower internal resistance, so the generated current is larger than that of the common carbon battery, and the battery does not contain mercury, so the battery can be treated with the household garbage and does not need to be recycled intentionally.
The alkaline battery takes manganese dioxide as a positive electrode, zinc as a negative electrode and potassium hydroxide as an electrolyte, has better characteristics than a carbon zinc battery, has higher capacity and lower internal resistance, can provide more stable working voltage and longer working time for electric equipment or appliances than a common zinc manganese battery, and is suitable for serving as a matched power supply of equipment such as a remote controller, a notebook computer, a pager and the like.
At present, when the alkaline zinc-manganese battery is used, due to some protrusions on a zinc cylinder, the protrusions can serve as charge centers in the working process of the battery, so that charges are accumulated to cause dendritic growth, the surface of the zinc cylinder can become uneven to cause zinc to form dendritic crystals, and the increase of the dendritic crystals can influence the charging and discharging performance of the battery.
Disclosure of Invention
The invention aims to provide an alkaline battery negative electrode material which can reduce side reaction on a zinc electrode and inhibit growth of dendritic crystals so as to improve the comprehensive performance of a battery.
The technical purpose of the invention is realized by the following technical scheme:
an alkaline battery negative electrode material comprises the following components in percentage by weight: 66.5 to 67.0 percent of zinc powder, 0.17 to 0.2 percent of polyacrylic acid, 0.35 to 0.4 percent of sodium polyacrylate, 0.1 to 0.3 percent of corrosion inhibitor, 31 to 33 percent of potassium hydroxide solution and 0.1 to 0.3 percent of adhesive.
Further, the binder is a mixture of nano-microfibrillar cellulose and carbon black, and the ratio of nano-microfibrillar cellulose to carbon black is 1.
Further, the mixture of the nano microfibrillar cellulose and the carbon black is prepared by mixing the nano microfibrillar cellulose and the carbon black by taking water as a solvent, and then stirring for 4 hours to form the adhesive.
Further, the nano-microfibril cellulose is derived from wood, soybean straw, wheat straw, corn stem and cotton stem.
Further, the corrosion inhibitor is one or a mixture of more of laurinol polyoxyethylene ether, coconut oil polyoxyethylene ether, an emulsifier TX-10 and 1-butyl-3-methylimidazole tetrafluoroborate ionic liquid.
In conclusion, the invention has the following beneficial effects:
1. the adhesive is added into the components, the adhesive contains carbon black and nano microfibril cellulose, the carbon black has good conductive effect, large surface area and high chemical stability, and can act with the nano microfibril cellulose with better hydrophilicity.
2. The corrosion inhibitor is added into the components, the organic corrosion inhibitor and the imidazole water-soluble ionic liquid are mixed for use, and the corrosion inhibitor compounded by the organic corrosion inhibitor and the imidazole water-soluble ionic liquid generates a synergistic effect, so that the corrosion inhibition efficiency is higher.
Detailed Description
Example 1:
an alkaline battery negative electrode material comprises the following components in percentage by weight: 66.9 percent of zinc powder, 0.2 percent of polyacrylic acid, 0.4 percent of sodium polyacrylate, 0.2 percent of corrosion inhibitor, 32 percent of potassium hydroxide solution and 0.2 percent of adhesive.
Wherein, the adhesive is a mixture of nano-microfibrillar cellulose and carbon black, and the ratio of the nano-microfibrillar cellulose to the carbon black is 1. The nano-microfibril cellulose is derived from soybean straws, the length of the nano-microfibril cellulose is concentrated in a range of 100-200nm, and the average length-diameter ratio is 10. Mixing the nano-microfibril cellulose with the carbon black according to a mass ratio of 1. Mixing zinc powder, polyacrylic acid, sodium polyacrylate, corrosion inhibitor, sodium hydroxide solution and adhesive to prepare the zinc paste. Wherein the corrosion inhibitor is a mixture of coconut oil polyoxyethylene ether, an emulsifier TX-10, and 1-butyl-3-methylimidazole tetrafluoroborate ionic liquid according to a mass ratio of 1.
Example 2:
an alkaline battery negative electrode material comprises the following components in percentage by weight: 66.9 percent of zinc powder, 0.2 percent of polyacrylic acid, 0.4 percent of sodium polyacrylate, 0.3 percent of corrosion inhibitor, 32 percent of potassium hydroxide solution and 0.2 percent of adhesive. The ratio of nano-microfibrillar cellulose to carbon black in the binder is 2. The other conditions were the same as in example 1.
Example 3:
an alkaline battery negative electrode material comprises the following components in percentage by weight: 66.9 percent of zinc powder, 0.2 percent of polyacrylic acid, 0.4 percent of sodium polyacrylate, 0.2 percent of corrosion inhibitor, 32 percent of potassium hydroxide solution and 0.3 percent of adhesive. The ratio of nano-microfibrillar cellulose to carbon black in the binder was 3. The other conditions were the same as in example 1.
Example 4:
an alkaline battery negative electrode material comprises the following components in percentage by weight: 67% of zinc powder, 0.18% of polyacrylic acid, 0.38% of sodium polyacrylate, 0.14% of corrosion inhibitor, 32% of potassium hydroxide solution and 0.3% of adhesive. The ratio of the nano microfibrillar cellulose to the carbon black in the binder is 1. The other conditions were the same as in example 1.
Example 5:
an alkaline battery negative electrode material comprises the following components in percentage by weight: 67% of zinc powder, 0.2% of polyacrylic acid, 0.4% of sodium polyacrylate, 0.18% of corrosion inhibitor, 32% of potassium hydroxide solution and 0.22% of adhesive. The ratio of the nano microfibrillar cellulose to the carbon black in the binder is 1. The other conditions were the same as in example 1.
Example 6:
an alkaline battery negative electrode material comprises the following components in percentage by weight: 67% of zinc powder, 0.2% of polyacrylic acid, 0.4% of sodium polyacrylate, 0.18% of corrosion inhibitor and 32% of potassium hydroxide solution. As a comparative example, no binder was added. The other conditions were the same as in example 1.
As shown in table 1, the batteries of examples 1 to 5 correspond to the numbers 1# -5#, the battery of example 6 is a comparative example, fresh electricity: the discharge performance of the directly prepared battery; the stored electricity is: discharge performance of the battery after storage at 70 ℃ for 7 days. The battery index detection results are as follows:
TABLE 1 test results for cell indices
As can be seen from the data in table 1, as the amount of the nano-microfibrillar cellulose in the binder increases, the nano-microfibrillar cellulose effectively connects the carbon black molecules to each other, and a good conductive effect is achieved, so that the discharge time from the 1# to 3# new battery and the high-temperature storage tends to increase, and the internal resistance of the battery tends to decrease. The 4# and 5# batteries adjust the dosage of the corrosion inhibitor, the discharging performance of the battery is found to be reduced compared with that of the 1# to 3# batteries, and the comprehensive data shows that the 3# battery has better comprehensive performance.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (5)
1. The negative electrode material of the alkaline battery is characterized by comprising the following components in percentage by weight: 66.5 to 67.0 percent of zinc powder, 0.17 to 0.2 percent of polyacrylic acid, 0.35 to 0.4 percent of sodium polyacrylate, 0.1 to 0.3 percent of corrosion inhibitor, 31 to 33 percent of potassium hydroxide solution and 0.1 to 0.3 percent of adhesive.
2. The alkaline battery negative electrode material according to claim 1, characterized in that: the adhesive is a mixture of nano-microfibrillar cellulose and carbon black, and the ratio of the nano-microfibrillar cellulose to the carbon black is 1.
3. The alkaline battery negative electrode material according to claim 2, characterized in that: the preparation method of the mixture of the nano microfibrillar cellulose and the carbon black comprises the steps of mixing the nano microfibrillar cellulose and the carbon black by taking water as a solvent, and stirring for 4 hours to form the adhesive.
4. The alkaline battery negative electrode material according to claim 2, characterized in that: the nanometer microfibril cellulose is derived from wood, soybean straw, wheat straw, corn stem and cotton stem.
5. The alkaline battery negative electrode material according to claim 1, characterized in that: the corrosion inhibitor is one or a mixture of a plurality of laurinol polyoxyethylene ether, coconut oil polyoxyethylene ether, an emulsifier TX-10 and 1-butyl-3-methylimidazole tetrafluoroborate ionic liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010674823.8A CN111653788A (en) | 2020-07-14 | 2020-07-14 | Alkaline battery negative electrode material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010674823.8A CN111653788A (en) | 2020-07-14 | 2020-07-14 | Alkaline battery negative electrode material |
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| CN111653788A true CN111653788A (en) | 2020-09-11 |
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| CN202010674823.8A Pending CN111653788A (en) | 2020-07-14 | 2020-07-14 | Alkaline battery negative electrode material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07105939A (en) * | 1993-10-01 | 1995-04-21 | Matsushita Electric Ind Co Ltd | Manganese dry cell |
| CN1627554A (en) * | 2003-12-11 | 2005-06-15 | 北京瑞源通动力电池技术有限公司 | Electrolyte of zinc-bromine battery as non-cyclic electrolyte |
| CN102903917A (en) * | 2012-10-09 | 2013-01-30 | 清华大学 | Aqueous electrolyte rechargeable zinc ion battery |
| CN109390581A (en) * | 2018-10-10 | 2019-02-26 | 嘉兴华荣电池有限公司 | Alkaline battery negative paste |
-
2020
- 2020-07-14 CN CN202010674823.8A patent/CN111653788A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07105939A (en) * | 1993-10-01 | 1995-04-21 | Matsushita Electric Ind Co Ltd | Manganese dry cell |
| CN1627554A (en) * | 2003-12-11 | 2005-06-15 | 北京瑞源通动力电池技术有限公司 | Electrolyte of zinc-bromine battery as non-cyclic electrolyte |
| CN102903917A (en) * | 2012-10-09 | 2013-01-30 | 清华大学 | Aqueous electrolyte rechargeable zinc ion battery |
| CN109390581A (en) * | 2018-10-10 | 2019-02-26 | 嘉兴华荣电池有限公司 | Alkaline battery negative paste |
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Application publication date: 20200911 |