CN103762374B - The preparation method of high-energy environment-friendlybattery battery electrolyte and equipment thereof - Google Patents
The preparation method of high-energy environment-friendlybattery battery electrolyte and equipment thereof Download PDFInfo
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- CN103762374B CN103762374B CN201410011417.8A CN201410011417A CN103762374B CN 103762374 B CN103762374 B CN 103762374B CN 201410011417 A CN201410011417 A CN 201410011417A CN 103762374 B CN103762374 B CN 103762374B
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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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/045—Cells with aqueous electrolyte characterised by aqueous electrolyte
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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
- H01M10/04—Construction or manufacture in general
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
A kind of preparation method of high-energy environment-friendlybattery battery electrolyte and equipment thereof, wherein, preparation method comprises the following steps: first day, zinc chloride and ammonium chloride are put into the Plastic Drum being added with deionized water be stirred to and dissolve completely, after it cools naturally, in this Plastic Drum, add hydrogen peroxide and stir, hold over night, second day, with water pump, the solution stirred is extracted into an inner chamber and is covered with the cotton filter core layer of PP from down to up successively, in first filtering container of active carbon layer and quartz sand layer, carry out first time to filter, and then, the filtrate of filtering through first time being sent into an inner chamber is covered with in the second filtering container of the cotton filter core layer of PP and mixed layer from down to up successively, carry out second time to filter, subsequently the filtrate of filtering specifically is sent in a plastics vat, add water debugging Baume degrees, through boiling rolled tin, colorimetric methods etc. detect filtrate, high-energy environment-friendlybattery battery electrolyte is obtained after qualified.The present invention consuming time short, occupied ground is less, economize on the use of funds and energy consumption.
Description
Technical field:
The present invention relates to a kind of preparation method and equipment thereof of high-energy environment-friendlybattery battery electrolyte.
Background technology:
Electrolyte is one of the four large factors forming battery, and it is ion conductor, for battery positive pole breading, beat battery core.Prior art adopts following two kinds of methods to prepare electrolyte usually:
1, cold treatment: Zinc chloride solid is poured in reaction pot to add water and hangs clean zinc angle again, every day is with Steam Heating 4-5 hour, to replace heavy metal ion, reaction pot 7-10 days takes the dish out of the pot once, the corrosion condition at zinc angle is observed before taking the dish out of the pot, as zinc angle keeps certain brightness, then can enter next link and adjust Baume degrees, if zinc angle blackout, change clean zinc angle and continue reaction.Baume degrees adds ammonium chloride after debugging in proportion, solution with water pump is got in high-order lautertuns after dissolving by ammonium to be chlorinated, two layers of flannelette and one deck plain cloth is used to filter the solution in this lautertuns subsequently, just high-energy environment-friendlybattery battery electrolyte is obtained after filtration, finally by over-cooking rolled tin, whether colorimetric method is qualified to the high-energy environment-friendlybattery battery electrolyte detecting this and handle well, about 15 days consuming time of front and back;
2, heat treatment: the zinc chloride of solid and ammonium chloride are put into be stirred in the large Plastic Drum being added with deionized water and dissolve completely, after naturally cooling, add hydrogen peroxide stir evenly, hold over night, solution is filtered in second Plastic Drum, with pump, the solution after filtration is squeezed in a reactor, add the zinc powder of 1kg in a kettle., heating reactor to 80 is spent, and be incubated 2 hours, electrolyte in reactor is poured in the 3rd Plastic Drum and be cooled to normal temperature, by cooled electrolyte filtering in the 4th Plastic Drum, add water tune Baume degrees, stir and be filtered in the 5th Plastic Drum, the high-energy environment-friendlybattery battery electrolyte of having filtered must through over-cooking rolled tin, colorimetric method detects, qualifiedly just can to use afterwards, about 3 days consuming time of front and back.
Although above-mentioned two kinds of methods all can prepare high-energy environment-friendlybattery battery electrolyte, three defects below but these two kinds of methods still exist in actual application: 1, consuming time long, general high-energy environment-friendlybattery battery electrolyte needs more than 3 days time from making subsequent treatment; Usually all need very large place when 2, preparing high-energy environment-friendlybattery battery electrolyte because realize equipment that these two kinds of methods adopt and container many, corresponding shared place is also just larger; 3, the material used in the process of preparation high-energy environment-friendlybattery battery electrolyte is all disposable, and not reproducible use, compares waste.
Summary of the invention:
The technical problem to be solved in the present invention is, provide a kind of consuming time short, occupied ground is less, economize on the use of funds, the preparation method of the high-energy environment-friendlybattery battery electrolyte of energy efficient and equipment thereof.
For solving the problems of the technologies described above, the invention provides a kind of preparation method of high-energy environment-friendlybattery battery electrolyte, comprising the following steps:
First day, Zinc chloride solid and ammonium chloride are put into the Plastic Drum being added with deionized water and is stirred to and dissolves completely, with relief, it cools naturally;
After temperature cooling, in this Plastic Drum, add hydrogen peroxide and stir, hold over night;
Second day, with water pump, the above-mentioned solution stirred being extracted into an inner chamber is covered with in the first filtering container of the cotton filter core layer of PP, active carbon layer and quartz sand layer from down to up successively, carry out first time by natural pressure to filter, in the process, the thickness of active carbon layer will between 10cm ~ 20cm, in active carbon layer, the diameter of each activated carbon granule will between 2mm ~ 5mm, and in quartz sand layer, the diameter of each quartz sand particle will between 0.5mm ~ 1.2mm;
And then, the filtrate of filtering through first time being sent into an inner chamber is covered with in the second filtering container of the cotton filter core layer of PP and mixed layer from down to up successively, this mixed layer is 65% ~ 85% quartz sand and mass percent by mass percent is that 15% ~ 35% high thin zinc powder mixes, and its thickness will between 20cm ~ 40cm, carry out second time by natural pressure to filter, subsequently the filtrate of filtering specifically is sent in a clean plastics vat;
Add water the filtrate in plastics vat debugging Baume degrees;
Through over-cooking rolled tin, colorimetric method etc., the filtrate in plastics vat being detected, after qualified, just obtaining high-energy environment-friendlybattery battery electrolyte, 2 days consuming time of front and back.
In addition, the present invention also provides a kind of equipment for making high-energy environment-friendlybattery battery electrolyte: comprise Plastic Drum, first filtering container, second filtering container and plastics vat, the water pump for being pumped into by the solution in Plastic Drum in the first filtering container is provided with between Plastic Drum and the first filtering container, first filtering container inner chamber is covered with the cotton filter core layer of a PP from down to up successively, active carbon layer and quartz sand layer, the thickness of active carbon layer is 10cm ~ 20cm, in active carbon layer, the diameter of each activated carbon granule is 2mm ~ 5mm, in quartz sand layer, the diameter of each quartz sand particle is 0.5mm ~ 1.2mm, second filtering container inner chamber is covered with the cotton filter core layer of the 2nd PP and mixed layer from down to up successively, this mixed layer is 65% ~ 85% quartz sand and mass percent by mass percent is that 15% ~ 35% high thin zinc powder mixes, and its thickness is 20cm ~ 40cm, first filtering container is positioned at above plastics vat, second filtering container is between the first filtering container and plastics vat, communicate with being all connected by pipeline between plastics vat top bottom first filtering container with bottom the second filter cartridge top and the second filtering container, Plastic Drum is contained in cement platform, water pump, first filtering container and the second filtering container are all contained in wall side or frame by fixed mesa.
The preparation method of high-energy environment-friendlybattery battery electrolyte of the present invention has the following advantages:
1, consuming time short, only need two days from the subsequent treatment of making of high-energy environment-friendlybattery battery electrolyte it is enough;
2, the equipment needed when preparing high-energy environment-friendlybattery battery electrolyte with existing method and container more, cause and take very large place difference, the preparation method of high-energy environment-friendlybattery battery electrolyte of the present invention has effectively saved place, a Plastic Drum, a water pump, the first filtering container, second filtering container and a plastics vat is only needed when preparing high-energy environment-friendlybattery battery electrolyte, eliminate a large amount of container, save place, save fund;
The material used in the preparation method of 3, high-energy environment-friendlybattery battery electrolyte of the present invention has the cotton filter core of active carbon, quartz sand, PP and high thin zinc powder, and wherein, the specific area of active carbon is large, and there is a large amount of micropores on surface, has powerful adsorption capacity; Quartz sand adopts natural quartz ore deposit to be raw material, has mechanical strength high, and retaining power is strong, and the life-span is long; The cotton filter core of PP is a kind of various granule foreigns can effectively removed in institute's filter liquide, and filtering traffic is large, and pressure reduction is little; These three kinds of equal acid corrosion-resistants of material, and the life-span is long, the cotton filter core of quartz sand, active carbon and PP can Reusability, in addition, mixed layer is 65% ~ 85% quartz sand and mass percent by mass percent is that 15% ~ 35% high thin zinc powder mixes, and quartz sand and the thin zinc powder Homogeneous phase mixing of height are that high thin zinc powder specific area is large in order to prevent high thin zinc powder caking, repeatedly can react, thus substantially increase the utilance of high thin zinc powder.
Accompanying drawing illustrates:
Fig. 1 is that the present invention is for making the main TV structure schematic diagram of the equipment of high-energy environment-friendlybattery battery electrolyte;
Fig. 2 is the flow chart of the preparation method of high-energy environment-friendlybattery battery electrolyte of the present invention.
Specific embodiment:
Below in conjunction with specific embodiment, the preparation method of high-energy environment-friendlybattery battery electrolyte of the present invention and equipment thereof are described in further detail:
Embodiment 1
The preparation method of high-energy environment-friendlybattery battery electrolyte of the present invention comprises the following steps:
Composition graphs 2, first day, Zinc chloride solid and ammonium chloride are put into the Plastic Drum being added with deionized water and is stirred to and dissolves completely, with relief, it cools naturally, after temperature cooling, adds hydrogen peroxide and stirs, hold over night in this Plastic Drum, second day, with water pump, the above-mentioned solution stirred is extracted into an inner chamber and is covered with the cotton filter core layer of PP from down to up successively, in first filtering container of active carbon layer and quartz sand layer, carry out first time by natural pressure to filter, in the process, the thickness of active carbon layer will at 10cm, in active carbon layer, the diameter of each activated carbon granule will at 2mm, in quartz sand layer, the diameter of each quartz sand particle will at 0.5mm, and then, the filtrate of filtering through first time being sent into an inner chamber is covered with in the second filtering container of the cotton filter core layer of PP and mixed layer from down to up successively, this mixed layer is 65% quartz sand and mass percent by mass percent is that 15% high thin zinc powder mixes, and its thickness will at 20cm, carry out second time by natural pressure to filter, subsequently the filtrate of filtering specifically is sent in a clean plastics vat, add water the filtrate in plastics vat debugging Baume degrees, through over-cooking rolled tin, colorimetric methods etc. detect the filtrate in plastics vat, just high-energy environment-friendlybattery battery electrolyte is obtained after qualified, two days consuming time of front and back.
See Fig. 1, the present invention comprises Plastic Drum 3 for the equipment making high-energy environment-friendlybattery battery electrolyte, first filtering container 12, second filtering container 8 and plastics vat 5, the water pump 1 for being pumped into by the solution in Plastic Drum 3 in first filtering container 12 is provided with between Plastic Drum 3 and the first filtering container 12, first filtering container 12 inner chamber is covered with the cotton filter core layer 9 of a PP from down to up successively, active carbon layer 10 and quartz sand layer 11, the thickness of active carbon layer 10 is 10cm, in active carbon layer 10, the diameter of each activated carbon granule is 2mm, in quartz sand layer 11, the diameter of each quartz sand particle is 0.5mm, second filtering container 8 inner chamber is covered with the cotton filter core layer 6 of the 2nd PP and mixed layer 7 from down to up successively, this mixed layer 7 is 65% quartz sand and mass percent by mass percent is that 15% high thin zinc powder mixes, and its thickness is 20cm, first filtering container 12 is positioned at above plastics vat 5, second filtering container 8 is between the first filtering container 12 and plastics vat 5, communicate with being all connected by pipeline between plastics vat 5 top bottom first filtering container 12 with bottom the second filtering container 8 top and the second filtering container 8, Plastic Drum 3 is contained in cement platform 4, plastics vat 5 is placed on the ground, water pump 1, first filtering container 12 and the second filtering container 8 are all contained in wall side (not shown) or frame (not shown) by fixed mesa 2.
Embodiment 2
The preparation method of high-energy environment-friendlybattery battery electrolyte of the present invention comprises the following steps:
Composition graphs 2, first day, Zinc chloride solid and ammonium chloride are put into the Plastic Drum being added with deionized water and is stirred to and dissolves completely, with relief, it cools naturally, after temperature cooling, adds hydrogen peroxide and stirs, hold over night in this Plastic Drum, second day, with water pump, the above-mentioned solution stirred is extracted into an inner chamber and is covered with the cotton filter core layer of PP from down to up successively, in first filtering container of active carbon layer and quartz sand layer, carry out first time by natural pressure to filter, in the process, the thickness of active carbon layer will at 15cm, in active carbon layer, the diameter of each activated carbon granule will at 3.5mm, in quartz sand layer, the diameter of each quartz sand particle will at 0.9mm, and then, the filtrate of filtering through first time being sent into an inner chamber is covered with in the second filtering container of the cotton filter core layer of PP and mixed layer from down to up successively, this mixed layer is 75% quartz sand and mass percent by mass percent is that 25% high thin zinc powder mixes, and its thickness will at 30cm, carry out second time by natural pressure to filter, subsequently the filtrate of filtering specifically is sent in a clean plastics vat, add water the filtrate in plastics vat debugging Baume degrees, through over-cooking rolled tin, colorimetric methods etc. detect the filtrate in plastics vat, just high-energy environment-friendlybattery battery electrolyte is obtained after qualified, two days consuming time of front and back.
See Fig. 1, the present invention comprises Plastic Drum 3 for the equipment making high-energy environment-friendlybattery battery electrolyte, first filtering container 12, second filtering container 8 and plastics vat 5, the water pump 1 for being pumped into by the solution in Plastic Drum 3 in first filtering container 12 is provided with between Plastic Drum 3 and the first filtering container 12, first filtering container 12 inner chamber is covered with the cotton filter core layer 9 of a PP from down to up successively, active carbon layer 10 and quartz sand layer 11, the thickness of active carbon layer 10 is 15cm, in active carbon layer 10, the diameter of each activated carbon granule is 3.5mm, in quartz sand layer 11, the diameter of each quartz sand particle is 0.9mm, second filtering container 8 inner chamber is covered with the cotton filter core layer 6 of the 2nd PP and mixed layer 7 from down to up successively, this mixed layer 7 is 75% quartz sand and mass percent by mass percent is that 25% high thin zinc powder mixes, and its thickness is 30cm, first filtering container 12 is positioned at above plastics vat 5, second filtering container 8 is between the first filtering container 12 and plastics vat 5, communicate with being all connected by pipeline between plastics vat 5 top bottom first filtering container 12 with bottom the second filtering container 8 top and the second filtering container 8, Plastic Drum 3 is contained in cement platform 4, plastics vat 5 is placed on the ground, water pump 1, first filtering container 12 and the second filtering container 8 are all contained in wall side (not shown) or frame (not shown) by fixed mesa 2.
Embodiment 3
The preparation method of high-energy environment-friendlybattery battery electrolyte of the present invention comprises the following steps:
Composition graphs 2, first day, Zinc chloride solid and ammonium chloride are put into the Plastic Drum being added with deionized water and is stirred to and dissolves completely, with relief, it cools naturally, after temperature cooling, adds hydrogen peroxide and stirs, hold over night in this Plastic Drum, second day, with water pump, the above-mentioned solution stirred is extracted into an inner chamber and is covered with the cotton filter core layer of PP from down to up successively, in first filtering container of active carbon layer and quartz sand layer, carry out first time by natural pressure to filter, in the process, the thickness of active carbon layer will at 20cm, in active carbon layer, the diameter of each activated carbon granule will at 5mm, in quartz sand layer, the diameter of each quartz sand particle will at 1.2mm, and then, the filtrate of filtering through first time being sent into an inner chamber is covered with in the second filtering container of the cotton filter core layer of PP and mixed layer from down to up successively, this mixed layer is 85% quartz sand and mass percent by mass percent is that 35% high thin zinc powder mixes, and its thickness will at 40cm, carry out second time by natural pressure to filter, subsequently the filtrate of filtering specifically is sent in a clean plastics vat, add water the filtrate in plastics vat debugging Baume degrees, through over-cooking rolled tin, colorimetric methods etc. detect the filtrate in plastics vat, just high-energy environment-friendlybattery battery electrolyte is obtained after qualified, two days consuming time of front and back.
See Fig. 1, the present invention comprises Plastic Drum 3 for the equipment making high-energy environment-friendlybattery battery electrolyte, first filtering container 12, second filtering container 8 and plastics vat 5, the water pump 1 for being pumped into by the solution in Plastic Drum 3 in first filtering container 12 is provided with between Plastic Drum 3 and the first filtering container 12, first filtering container 12 inner chamber is covered with the cotton filter core layer 9 of a PP from down to up successively, active carbon layer 10 and quartz sand layer 11, the thickness of active carbon layer 10 is 20cm, in active carbon layer 10, the diameter of each activated carbon granule is 5mm, in quartz sand layer 11, the diameter of each quartz sand particle is 1.2mm, second filtering container 8 inner chamber is covered with the cotton filter core layer 6 of the 2nd PP and mixed layer 7 from down to up successively, this mixed layer 7 is 85% quartz sand and mass percent by mass percent is that 35% high thin zinc powder mixes, and its thickness is 40cm, first filtering container 12 is positioned at above plastics vat 5, second filtering container 8 is between the first filtering container 12 and plastics vat 5, communicate with being all connected by pipeline between plastics vat 5 top bottom first filtering container 12 with bottom the second filtering container 8 top and the second filtering container 8, Plastic Drum 3 is contained in cement platform 4, plastics vat 5 is placed on the ground, water pump 1, first filtering container 12 and the second filtering container 8 are all contained in wall side (not shown) or frame (not shown) by fixed mesa 2.
In above-mentioned three embodiments, the first described filtering container 12 and the length of the second filtering container 8 are 100cm*150cm*100cm, water pump 1, Plastic Drum 3, first filtering container 12, quartz sand, active carbon, a PP cotton filter core layer 9, second filtering container 8, high thin zinc powder, the cotton filter core layer 6 of the 2nd PP and plastics vat 5 are commercially available prod, first filtering container 12 and the second filtering container 8 are also made up of plastic material, this plastic material is conventional prior art, therefore does not repeat at this.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various improvement that those of ordinary skill in the art make technical scheme of the present invention, all should fall in protection range that claims of the present invention determines.
Claims (2)
1. a preparation method for high-energy environment-friendlybattery battery electrolyte, is characterized in that: comprise the following steps:
First day, Zinc chloride solid and ammonium chloride are put into the Plastic Drum being added with deionized water and is stirred to and dissolves completely, with relief, it cools naturally;
After temperature cooling, in this Plastic Drum, add hydrogen peroxide and stir, hold over night;
Second day, with water pump, the above-mentioned solution stirred being extracted into an inner chamber is covered with in the first filtering container of the cotton filter core layer of PP, active carbon layer and quartz sand layer from down to up successively, carry out first time by natural pressure to filter, in the process, the thickness of active carbon layer will between 10cm ~ 20cm, in active carbon layer, the diameter of each activated carbon granule will between 2mm ~ 5mm, and in quartz sand layer, the diameter of each quartz sand particle will between 0.5mm ~ 1.2mm;
And then, the filtrate of filtering through first time being sent into an inner chamber is covered with in the second filtering container of the cotton filter core layer of PP and mixed layer from down to up successively, this mixed layer is 65% ~ 85% quartz sand and mass percent by mass percent is that 15% ~ 35% high thin zinc powder mixes, and its thickness will between 20cm ~ 40cm, carry out second time by natural pressure to filter, subsequently the filtrate of filtering specifically is sent in a clean plastics vat;
Add water the filtrate in plastics vat debugging Baume degrees;
Through over-cooking rolled tin, colorimetric method detects the filtrate in plastics vat, just obtains high-energy environment-friendlybattery battery electrolyte after qualified, in preparation method institute in steps before and after two days consuming time.
2. one kind for making the equipment of high-energy environment-friendlybattery battery electrolyte, it is characterized in that: comprise Plastic Drum (3), first filtering container (12), second filtering container (8) and plastics vat (5), the water pump (1) for being pumped into by the solution in Plastic Drum (3) in the first filtering container (12) is provided with between described Plastic Drum (3) and the first filtering container (12), described first filtering container (12) inner chamber is covered with cotton filter core layer (9) of a PP from down to up successively, active carbon layer (10) and quartz sand layer (11), the thickness of active carbon layer (10) is 10cm ~ 20cm, in active carbon layer (10), the diameter of each activated carbon granule is 2mm ~ 5mm, in quartz sand layer (11), the diameter of each quartz sand particle is 0.5mm ~ 1.2mm, described second filtering container (8) inner chamber is covered with cotton filter core layer (6) of the 2nd PP and mixed layer (7) from down to up successively, this mixed layer (7) is 65% ~ 85% quartz sand and mass percent by mass percent is that 15% ~ 35% high thin zinc powder mixes, and its thickness is 20cm ~ 40cm, described first filtering container (12) is positioned at plastics vat (5) top, second filtering container (8) is positioned between the first filtering container (12) and plastics vat (5), described first filtering container (12) bottom is communicated with being all connected by pipeline between plastics vat (5) top with bottom the second filtering container (8) top and the second filtering container (8), described Plastic Drum (3) is contained in cement platform (4), described water pump (1), first filtering container (12) and the second filtering container (8) are all contained in wall side or frame by fixed mesa (2).
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| CN201410011417.8A CN103762374B (en) | 2014-01-10 | 2014-01-10 | The preparation method of high-energy environment-friendlybattery battery electrolyte and equipment thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122521A (en) * | 1994-11-04 | 1996-05-15 | 郝进生 | Rapid purification process for zinc-manganese dry-cell celectrolyte |
| EP0782972A2 (en) * | 1996-01-08 | 1997-07-09 | Mitsui Mining & Smelting Co., Ltd. | Electrolytic manganese dioxide, process for preparing the same, and manganese dry cell |
| CN1203460A (en) * | 1997-06-20 | 1998-12-30 | 肖红 | Zinc-manganese dry cell electrolyte and compounding process |
| CN102054994A (en) * | 2010-12-10 | 2011-05-11 | 株洲江海环保实业有限公司 | Non-corrosive composite electrolyte for zinc manganese dry battery and preparation method thereof |
-
2014
- 2014-01-10 CN CN201410011417.8A patent/CN103762374B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122521A (en) * | 1994-11-04 | 1996-05-15 | 郝进生 | Rapid purification process for zinc-manganese dry-cell celectrolyte |
| EP0782972A2 (en) * | 1996-01-08 | 1997-07-09 | Mitsui Mining & Smelting Co., Ltd. | Electrolytic manganese dioxide, process for preparing the same, and manganese dry cell |
| CN1203460A (en) * | 1997-06-20 | 1998-12-30 | 肖红 | Zinc-manganese dry cell electrolyte and compounding process |
| CN102054994A (en) * | 2010-12-10 | 2011-05-11 | 株洲江海环保实业有限公司 | Non-corrosive composite electrolyte for zinc manganese dry battery and preparation method thereof |
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