CN102306793B - Cylindrical alkaline zinc-manganese battery positive electrode additive and preparation method thereof - Google Patents
Cylindrical alkaline zinc-manganese battery positive electrode additive and preparation method thereof Download PDFInfo
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- CN102306793B CN102306793B CN201110247759.6A CN201110247759A CN102306793B CN 102306793 B CN102306793 B CN 102306793B CN 201110247759 A CN201110247759 A CN 201110247759A CN 102306793 B CN102306793 B CN 102306793B
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- positive electrode
- alkaline zinc
- manganese dioxide
- cylindrical alkaline
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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 invention provides a cylindrical alkaline zinc-manganese dioxide battery positive electrode additive and a preparation method thereof, wherein the cylindrical alkaline zinc-manganese dioxide battery positive electrode additive is composed of the following raw materials in parts by weight: 80-90 parts of electrolytic manganese dioxide; 1-10 parts of graphite powder; 0.5-1 part of calcium stearate; 1-5 parts of barium sulfate. The invention has low cost of raw materials and simple preparation process, can increase the porosity of the cathode ring, improve the ionic conductivity and the discharge performance of large current, and is particularly suitable for large-current electrical appliances such as digital cameras and the like.
Description
Technical Field
The invention belongs to the field of fine chemical materials, and particularly relates to a cylindrical alkaline zinc-manganese battery positive electrode additive and a preparation method thereof.
Background
The alkaline zinc-manganese battery is a primary battery which takes manganese dioxide as a positive electrode, zinc as a negative electrode and potassium hydroxide solution as electrolyte, and is called an alkaline battery for short. The alkaline zinc-manganese dioxide cell can discharge heavy load and heavy current, has large capacitance, has high cost performance relative to the common dry cell, is widely applied to civil use and industry, and is particularly suitable for instruments and equipment such as flash cameras, miniature radio recorders, video cameras, interphones, shavers, palm-type color televisions and game machines, toys, remote detectors, alarms, calculators, hearing aids, flashlights, electric clocks and the like. However, the porosity of the cathode ring of the common alkaline zinc-manganese dioxide cell is not large enough, the ionic conductivity is not high enough, and the discharge performance of large current is not good enough, so that the cathode ring is used on large-current electrical appliances such as a digital camera, the working time is not long enough, and the requirement of people for long-time shooting can not be met.
Disclosure of Invention
In order to solve the technical problems, the invention provides a cylindrical alkaline zinc-manganese dioxide battery positive electrode additive and a preparation method thereof.
The anode additive for the cylindrical alkaline zinc-manganese dioxide battery is characterized by comprising the following raw materials in parts by weight: 70-100 parts of electrolytic manganese dioxide; 1-15 parts of graphite powder; 0.5-2 parts of calcium stearate; 1-10 parts of barium sulfate.
The additive is characterized by comprising the following raw materials in parts by weight: 80-90 parts of electrolytic manganese dioxide; 1-10 parts of graphite powder; 0.5-1 part of calcium stearate; 1-5 parts of barium sulfate.
The preparation method of the additive comprises the following steps:
1) Mixing the raw materials, and mixing for 5 minutes at normal temperature in a mixer;
2) Adding electrolyte, and wet-mixing for 5 minutes;
3) Rolling, granulating and screening.
The method, characterized in that the electrolyte in step 2) is 40% by weight of a potassium hydroxide solution.
The method is characterized in that the particle size obtained by screening in the step 3) is 20-80 meshes.
The anode additive of the cylindrical alkaline zinc-manganese dioxide battery and the preparation method thereof have the advantages of low raw material cost and simple preparation process, can increase the porosity of the cathode ring, improve the ionic conductivity and improve the high-current discharge performance, and are particularly suitable for high-current electrical appliances such as digital cameras and the like.
Detailed Description
The present invention will be further described with reference to the following examples in order to better practice the present invention, but the present invention is not limited to the scope of the examples cited by the present inventors.
Example 1 preparation method of positive electrode additive for cylindrical alkaline zinc-manganese dioxide battery according to the invention
Weighing 40Kg of electrolytic manganese dioxide, 3Kg of graphite powder, 0.1Kg of calcium stearate and 2Kg of barium sulfate. The production steps are as follows: mixing in a mixer at room temperature for 5 min, adding 2.5Kg of potassium hydroxide (40 wt%), wet-stirring for 5 min, flaking, granulating, and sieving to obtain positive electrode powder with particle size of 20-80 mesh, and storing for later use.
Compared with the conventional production method, 1-5 parts of barium sulfate is added into the positive electrode component, so that the pores among particles are increased, and the ionic conductivity is improved.
Experimental example 1 comparative experiment of process and original process of positive electrode additive for cylindrical alkaline zinc-manganese dioxide battery according to the invention
| Continuous discharge of 10 omega to 0.9V | Continuous discharge of 3.9 omega to 0.9V | 1.8 omega pulse to 0.9V | 1000mA pulse to 0.9V | Continuous discharge of 3.9 omega to 0.8V | |
| New formula process | 19.29 hours | 379.2 min | 645.3 times | 395 times | 428.7 minutes |
| Original formula process | 19.04 hours | 368.1 min | 611.3 times | 353 times (k) | 393.5 minutes |
TABLE 1 comparative experiment of the process of the positive electrode additive for cylindrical alkaline zinc-manganese dioxide battery of the invention and the original process
Through the experiments in table 1, it can be found that the new formula process of the invention can improve the discharge performance of large current, and the discharge time and the discharge times are obviously increased compared with the original process.
The present invention is only exemplified by the above embodiments, and various changes or modifications of the present invention can be made by those skilled in the art after reading the above teaching of the present invention, and these equivalents also fall within the scope of the present invention defined by the appended claims.
Claims (2)
1. The anode of the cylindrical alkaline zinc-manganese battery is characterized by comprising the following raw materials in parts by weight: 80 parts of electrolytic manganese dioxide; 6 parts of graphite powder; 0.2 part of calcium stearate; and 4 parts of barium sulfate.
2. The method for preparing a positive electrode according to claim 1, comprising the steps of:
1) Mixing the raw materials, and mixing for 5 minutes at normal temperature in a mixer;
2) Adding 40% by weight of a potassium hydroxide solution as an electrolyte, and wet-stirring for 5 minutes;
3) Rolling, granulating and screening, wherein the grain diameter obtained by screening is 20-80 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110247759.6A CN102306793B (en) | 2011-08-26 | 2011-08-26 | Cylindrical alkaline zinc-manganese battery positive electrode additive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110247759.6A CN102306793B (en) | 2011-08-26 | 2011-08-26 | Cylindrical alkaline zinc-manganese battery positive electrode additive and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102306793A CN102306793A (en) | 2012-01-04 |
| CN102306793B true CN102306793B (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110247759.6A Expired - Fee Related CN102306793B (en) | 2011-08-26 | 2011-08-26 | Cylindrical alkaline zinc-manganese battery positive electrode additive and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102306793B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078117B (en) * | 2012-12-28 | 2016-05-18 | 中银（宁波）电池有限公司 | Additive for positive electrode of alkaline battery |
| CN106129430B (en) * | 2016-08-30 | 2019-03-12 | 江门金刚电源制品有限公司 | Positive electrode body of alkaline battery, alkaline battery and preparation method of alkaline battery |
| CN106159292B (en) * | 2016-08-30 | 2019-03-12 | 江门金刚电源制品有限公司 | Alkaline battery and method for manufacturing the same |
| CN108598363A (en) * | 2018-02-08 | 2018-09-28 | 中银（宁波）电池有限公司 | The preparation method of alkaline cell anode |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109641A (en) * | 1993-04-20 | 1995-10-04 | 蓄电池技术股份有限公司 | Manganese dioxide positive electrode for rechargeable alkaline cells, and cells containing the same |
| CN1635651A (en) * | 2003-12-26 | 2005-07-06 | 钱敦勇 | Additive for battery and adding method |
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2011
- 2011-08-26 CN CN201110247759.6A patent/CN102306793B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109641A (en) * | 1993-04-20 | 1995-10-04 | 蓄电池技术股份有限公司 | Manganese dioxide positive electrode for rechargeable alkaline cells, and cells containing the same |
| CN1635651A (en) * | 2003-12-26 | 2005-07-06 | 钱敦勇 | Additive for battery and adding method |
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| CN102306793A (en) | 2012-01-04 |
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