CN102437382A - Electrolyte of silver-zinc storage battery with long wet charged life and preparation method thereof - Google Patents
Electrolyte of silver-zinc storage battery with long wet charged life and preparation method thereof Download PDFInfo
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- CN102437382A CN102437382A CN2011104247512A CN201110424751A CN102437382A CN 102437382 A CN102437382 A CN 102437382A CN 2011104247512 A CN2011104247512 A CN 2011104247512A CN 201110424751 A CN201110424751 A CN 201110424751A CN 102437382 A CN102437382 A CN 102437382A
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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 discloses an electrolyte of a silver-zinc storage battery with long wet charged life and a preparation method thereof. The electrolyte comprises the following components in percentage by weight 25%-50% potassium hydroxide (KOH), 0.1%-0.5% of lithium hydroxide (LiOH) and 2%-18% of zinc oxide (ZnO), and the balance of deionized water. In the invention, the dissolving problem of zinc electrode and degradation problem of membrane during long time of charged storage process are solved by using the electrolyte additives (LiO and ZnO), so that the electrical performance and insulation performance of the battery are effectively ensured after the battery is wet charged ten months.
Description
Technical field
The invention belongs to the zinc-silver storage battery designing technique, be specifically related to a kind of electrolyte of growing wet charged life-span zinc-silver storage battery and preparation method thereof.
Background technology
Advantages such as zinc-silver storage battery has discharging voltage balance, specific energy is big, specific power is high and safe and reliable are widely used among the various spacecrafts of China.Along with the development of Chinese Space technology, the time that various spacecrafts will stop in space is more and more longer, and its power mode also is tending towards diversification, to the various power-supply systems supporting with it require increasingly high.The wet charged life-span of zinc-silver storage battery generally about 3 months, satisfied the demand that spacecraft stays the rail operation for a long time at present, must prolong the wet charged life-span of the supporting zinc-silver storage battery of spacecraft, generally requires the wet charged time of zinc-silver storage battery to be greater than 10 months.And wet for a long time charged storage back zinc-silver storage battery the zinc electrode dissolving can occur and thereby the barrier film degraded causes battery electrical property and insulation resistance to descend, and finally causes battery failure.Through electrolysis additive composition and ratio are suitably adjusted, improve zinc-silver storage battery in long-time charged zinc electrode problems of dissolution and the barrier film degradation problem of depositing in the process, thus the wet charged life-span of zinc-silver storage battery.
Summary of the invention
Thereby the technical problem that the present invention will solve wet charged the storages back zinc-silver storage battery that is existing zinc-silver storage battery the zinc electrode dissolving can occur and degrade with barrier film and cause battery electrical property and insulation resistance decline; The present invention is through adjusting electrolysis additive composition and ratio; Improve zinc-silver storage battery in long-time charged zinc electrode problems of dissolution and the barrier film degradation problem of depositing in the process, thus the wet charged life-span of zinc-silver storage battery.
A kind of electrolysis additive technology is provided, adopts the electrolyte of the said electrolysis additive technology of this patent preparation, zinc-silver storage battery still can guarantee operate as normal after wet charged 10 months.
The technical scheme that the present invention adopts: a kind of electrolyte of growing wet charged life-span zinc-silver storage battery, the mass ratio of its composition:
KOH 25%～50%
LiOH 0.1%～0.5%
ZnO 2%～18%
All the other are deionized water.
A kind of electrolyte of growing wet charged life-span zinc-silver storage battery of the present invention, LiOH and ZnO are pure for analyzing.
A kind of preparation method who grows the electrolyte of wet charged life-span zinc-silver storage battery of the present invention; At first take by weighing and take by weighing potassium hydroxide by above-mentioned mass percent and place beaker; And beaker placed electric jacket; Under 60 ℃ of temperature, add deionized water, utilize the abundant agitating solution of electric mixer all to dissolve until potassium hydroxide; Take by weighing LiOH by above-mentioned mass percent then, and slowly be dissolved in the KOH solution of being prepared, evenly stir and dissolve fully until pressed powder; Take by weighing ZnO by above-mentioned mass percent at last, slowly join among the above-mentioned KOH solution, evenly stirring makes the whole dissolvings of ZnO become the water white transparency shape until solution, and after natural cooling filtered, electrolyte quota was accomplished.
The beneficial effect that the present invention reaches:The present invention is through selecting certain proportion of additive; Can solve in the long-time charged degradation problem of depositing zinc electrode problems of dissolution and barrier film in the process; The electrolyte for preparing is added the injection cell; Can fully improve the wet charged time of cell, effectively guarantee electrical property and the insulation property of battery after wet charged 10 months.Process the 6Ah zinc-silver storage battery by above-mentioned requirements, behind the above-mentioned electrolyte of annotating, discharge with the 1A discharging current; Discharge capacity of the cell is 8.16Ah before charged; Annotate behind the above-mentioned electrolyte, at room temperature place 10 months after, discharge capacity is 7.85Ah; The capacity moon, loss late was 0.4%, and this capacity belongs to normal capacitance loss during zinc-silver oxide cell charged.
The present invention compared with prior art, effect is obvious, and is simple to operate, cost is low.
Embodiment:
Long wet charged life-span zinc-silver oxide cell mainly is made up of negative collector bar, positive collector bar, insulating tape, barrier film, negative electrode, electrolyte, positive electrode, pouch etc.; Barrier film can be one or more of regenerated cellulose film or non-braiding synthetic fibers nylon or polypropylene and non-braiding staple fibre felt, and the height of barrier film will exceed positive electrode and negative electrode.
Said electrolyte is the electrolyte of long wet charged life-span zinc-silver storage battery.
Embodiment 1:
The electrolyte of the wet charged life-span zinc-silver storage battery of length of the present invention, the mass ratio of its composition:
Analyze pure KOH 45%
Analyze pure LiOH 0.1%
ZnO 7%
All the other are deionized water.
A kind of preparation method who grows the electrolyte of wet charged life-span zinc-silver storage battery of the present invention; At first take by weighing and take by weighing potassium hydroxide by above-mentioned mass percent and place beaker; And beaker placed electric jacket; Under 60 ℃ of temperature, add deionized water, utilize the abundant agitating solution of electric mixer all to dissolve until potassium hydroxide; Take by weighing LiOH by above-mentioned mass percent then, and slowly be dissolved in the KOH solution of being prepared, evenly stir and dissolve fully until pressed powder; Take by weighing ZnO by above-mentioned mass percent at last, slowly join among the above-mentioned KOH solution, evenly stirring makes the whole dissolvings of ZnO become the water white transparency shape until solution, and after natural cooling filtered, electrolyte quota was accomplished.
Process the 6Ah zinc-silver storage battery by above-mentioned requirements, behind the above-mentioned electrolyte of annotating, discharge with the 1A discharging current, charged discharge capacity of the cell in the past is 8.16Ah; Annotate behind the above-mentioned electrolyte, at room temperature place 10 months after, discharge capacity is 7.85Ah, the capacity moon loss late be 0.4%, this capacity belongs to normal capacitance loss during zinc-silver oxide cell charged.
Process the 16Ah zinc-silver storage battery by above-mentioned requirements, behind the above-mentioned electrolyte of annotating, discharge with the 2A discharging current, charged discharge capacity of the cell in the past is 18.3Ah; Annotate behind the above-mentioned electrolyte, at room temperature place 10 months after, discharge capacity is 17.5Ah, the capacity moon loss late be 0.44%, this capacity belongs to normal capacitance loss during zinc-silver oxide cell charged.
Process the 160Ah zinc-silver storage battery by above-mentioned requirements, behind the above-mentioned electrolyte of annotating, discharge with the 10A discharging current, charged discharge capacity of the cell in the past is 180Ah; Annotate behind the above-mentioned electrolyte, at room temperature place 10 months after, discharge capacity is 171Ah, the capacity moon loss late be 0.5%, this capacity belongs to normal capacitance loss during zinc-silver oxide cell charged.
Claims (3)
1. the electrolyte of one kind long wet charged life-span zinc-silver storage battery is characterized in that: the mass ratio of its composition:
KOH 25%～50%
LiOH 0.1%～0.5%
ZnO 2%～18%
All the other are deionized water.
2. a kind of electrolyte of growing wet charged life-span zinc-silver storage battery according to claim 1 is characterized in that: LiOH and ZnO are pure for analyzing.
3. a kind of preparation method who grows the electrolyte of wet charged life-span zinc-silver storage battery as claimed in claim 1; It is characterized in that: at first take by weighing potassium hydroxide and place beaker by above-mentioned mass percent; And beaker placed electric jacket; Under 60 ℃ of conditions, add deionized water, utilize the abundant agitating solution of electric mixer all to dissolve until potassium hydroxide; Take by weighing LiOH by above-mentioned mass percent then, and slowly be dissolved in the KOH solution of being prepared, evenly stir and dissolve fully until pressed powder; Take by weighing ZnO by above-mentioned mass percent at last, slowly join among the above-mentioned KOH solution, evenly stirring makes the whole dissolvings of ZnO become the water white transparency shape until solution, and after natural cooling filtered, electrolyte quota was accomplished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104247512A CN102437382A (en) | 2011-12-19 | 2011-12-19 | Electrolyte of silver-zinc storage battery with long wet charged life and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104247512A CN102437382A (en) | 2011-12-19 | 2011-12-19 | Electrolyte of silver-zinc storage battery with long wet charged life and preparation method thereof |
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| CN102437382A true CN102437382A (en) | 2012-05-02 |
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| CN2011104247512A Pending CN102437382A (en) | 2011-12-19 | 2011-12-19 | Electrolyte of silver-zinc storage battery with long wet charged life and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790239A (en) * | 2012-08-30 | 2012-11-21 | 上海锦众信息科技有限公司 | Zinc-silver battery electrolyte preparation method |
| CN106601980A (en) * | 2016-11-29 | 2017-04-26 | 中国电子科技集团公司第十八研究所 | Preparation method of thin zinc electrode for zinc-silver battery |
| CN109244496A (en) * | 2018-10-10 | 2019-01-18 | 嘉兴华荣电池有限公司 | Electrolyte of alkaline battery |
| CN111463500A (en) * | 2020-03-18 | 2020-07-28 | 山东合泰新能源有限公司 | Electrolyte for zinc anode alkaline secondary battery |
| CN114284578A (en) * | 2021-12-28 | 2022-04-05 | 贵州梅岭电源有限公司 | Long-wet-life zinc-silver storage battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139824A (en) * | 1995-10-10 | 1997-01-08 | 刘建政 | High energy and capacity zinc negative pole basic accumulator and dry battery |
| CN1734813A (en) * | 2004-08-09 | 2006-02-15 | 日立麦克赛尔株式会社 | Electrolyte of alkaline cell and its manufacturing method and alkaline cell |
| CN101521280A (en) * | 2008-02-27 | 2009-09-02 | 曹鹏 | Carbon calamine cream for alkaline cell " |
| CN101533908A (en) * | 2009-04-02 | 2009-09-16 | 浙江理工大学 | Alkaline zinc-based secondary battery cathode material and preparation method thereof |
-
2011
- 2011-12-19 CN CN2011104247512A patent/CN102437382A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139824A (en) * | 1995-10-10 | 1997-01-08 | 刘建政 | High energy and capacity zinc negative pole basic accumulator and dry battery |
| CN1734813A (en) * | 2004-08-09 | 2006-02-15 | 日立麦克赛尔株式会社 | Electrolyte of alkaline cell and its manufacturing method and alkaline cell |
| CN101521280A (en) * | 2008-02-27 | 2009-09-02 | 曹鹏 | Carbon calamine cream for alkaline cell " |
| CN101533908A (en) * | 2009-04-02 | 2009-09-16 | 浙江理工大学 | Alkaline zinc-based secondary battery cathode material and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790239A (en) * | 2012-08-30 | 2012-11-21 | 上海锦众信息科技有限公司 | Zinc-silver battery electrolyte preparation method |
| CN106601980A (en) * | 2016-11-29 | 2017-04-26 | 中国电子科技集团公司第十八研究所 | Preparation method of thin zinc electrode for zinc-silver battery |
| CN109244496A (en) * | 2018-10-10 | 2019-01-18 | 嘉兴华荣电池有限公司 | Electrolyte of alkaline battery |
| CN111463500A (en) * | 2020-03-18 | 2020-07-28 | 山东合泰新能源有限公司 | Electrolyte for zinc anode alkaline secondary battery |
| CN111463500B (en) * | 2020-03-18 | 2021-06-22 | 山东合泰新能源有限公司 | Preparation method of electrolyte for zinc anode alkaline secondary battery |
| CN114284578A (en) * | 2021-12-28 | 2022-04-05 | 贵州梅岭电源有限公司 | Long-wet-life zinc-silver storage battery |
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Application publication date: 20120502 |