CN102800899A - Preparation method of electrolyte of nickel hydrogen battery - Google Patents
Preparation method of electrolyte of nickel hydrogen battery Download PDFInfo
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- CN102800899A CN102800899A CN2012103158662A CN201210315866A CN102800899A CN 102800899 A CN102800899 A CN 102800899A CN 2012103158662 A CN2012103158662 A CN 2012103158662A CN 201210315866 A CN201210315866 A CN 201210315866A CN 102800899 A CN102800899 A CN 102800899A
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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
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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
The invention discloses a preparation method of an electrolyte of a nickel hydrogen battery. The preparation method comprises the steps as follows: preparing components of an alkaline solution based on mixture: preparing potassium hydroxide, sodium hydroxide, lithium hydrate and a mixture thereof by which Mn2+ can reach saturated MnSO4 based on mass ratio of 2 to 3: 1 to 2: 0.5 to 1: 0.3 to 0.6; dissolving with solvent water along with agitating at 40 to 50 DEG C, so as to obtain a solution with molality of 8 to 10mol/L, wherein the additives of the electrolyte include lithium nitrate, sodium formate, ethylene glycol and nickel nitrate. Compared with other electrolytes of the nickel hydrogen battery in the market, the electrolyte provided by the invention greatly improves the discharging performance of the nickel hydrogen battery, and effectively prolongs the service life of the nickel hydrogen battery after being tried by battery manufacturers.
Description
Technical field
The present invention relates to a kind of preparation method of battery electrolyte, relate in particular to a kind of Ni-MH battery preparation method of electrolyte.
Background technology
Ni-MH battery can be used for military affairs, Aero-Space, navigation, oil, coal, geological prospecting and operation, reaches fields such as mountain-climbing sports items, antarctic investigation on ice.At present, existing industrial manufacturing Ni-MH battery, used electrolyte are mainly the mixed electrolytic solution of potassium hydroxide aqueous solution or potassium hydroxide, NaOH and lithium hydroxide.Research is thought: electrolyte is very big to the battery performance influence, and this is that the conductivity of electrolyte and the invertibity of electrode reaction directly affect discharge capacity of the cell and middle threshold voltage because bath composition and concentration and its conductivity and electrode reaction are closely related.Therefore, the electrolyte of Ni-MH battery is for having crucial effects in the discharge capability of Ni-MH battery and useful life etc.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of electrolyte of Ni-MH battery uses the Ni-MH battery of the electrolyte of this method preparation to have that discharge capability is strong, the advantage of long service life.
To achieve these goals, the preparation method of the electrolyte of Ni-MH battery provided by the invention comprises the steps:
Step 1, the preparation alkaline solution:
With mass ratio is 2-3: 1-2: 0.5-1: 0.3-0.6 potassium hydroxide, NaOH, lithium hydroxide and can make Mn
2+The MnSO that reaches capacity
4Mixture, under 40-50 ℃ and stirring condition,, be made into Mn with the aqueous solvent dissolving
2+Molar concentration is the solution of 8-10mol/L;
Step 2, prepare electrolysis additive:
Electrolysis additive is pressed following mass ratio:
Step 3 is mixed alkaline solution and electrolysis additive, preparation Ni-MH battery electrolyte:
Under 40-50 ℃ and stirring condition, be that the electrolysis additive of the 1-1.5% of alkaline solution joins in the aqueous slkali that the first step prepares with mass ratio, dissolving continues to stir 5-10 minute, promptly makes Ni-MH battery electrolyte.
Wherein, said aqueous solvent is redistilled water or deionized water.
Wherein, said carboxylic acid sodium is sodium formate or sodium acetate.
Wherein, said polyalcohol is dihydroxylic alcohols and/or trihydroxy alcohol.
Wherein, said dihydroxylic alcohols is ethylene glycol and/or propane diols.
Wherein, said trihydroxy alcohol is a glycerine.
Adopt the Ni-MH battery electrolyte of manufacturing approach preparation of the present invention, through trying out of battery producer, compare with other electrolyte on the market, discharge capability greatly improves, and effectively prolonged useful life.
Embodiment
Embodiment one
The preparation alkaline solution
With mass ratio is 2: 1: 0.5:0.3 potassium hydroxide, NaOH, lithium hydroxide and can make Mn
2+The MnSO that reaches capacity
4Three's mixture is dissolved in glass container in redistilled water and the deionized water, puts into the heated and stirred container then, under 40 ℃ of temperature, with 1000 rev/mins speed, stirs 5 minutes, is made into Mn
2+Molar concentration is the solution of 8mol/L.
Prepare electrolysis additive
Electrolysis additive is pressed following mass ratio:
Four kinds of materials of above-mentioned mass parts are fully mixed.
Alkaline solution and electrolysis additive are mixed preparation Ni-MH battery electrolyte
With mixed electrolysis additive, be added in the alkaline solution in the above-mentioned heated and stirred container, its mass ratio is 1% of an alkaline solution, dissolving continues under the mixing speed of changeing at 40 ℃ and 1000, to stir 5 minutes, promptly makes Ni-MH battery electrolyte.
Embodiment two
The preparation alkaline solution
With mass ratio is 3: 2: 1:0.6 potassium hydroxide, NaOH, lithium hydroxide and can make Mn
2+The MnSO that reaches capacity
4Three's mixture is dissolved in glass container in redistilled water and the deionized water, puts into the heated and stirred container then, under 50 ℃ of temperature, with 1500 rev/mins speed, stirs 10 minutes, is made into
2+Molar concentration is the solution of 10mol/L.
Prepare electrolysis additive
Electrolysis additive is pressed following proportion by weight:
Four kinds of materials of above-mentioned mass parts are fully mixed.
Alkaline solution and electrolysis additive are mixed preparation Ni-MH battery electrolyte
With mixed electrolysis additive, be added in the alkaline solution in the above-mentioned heated and stirred container, its mass ratio is 1.5% of an alkaline solution, dissolving continues under the mixing speed of changeing at 50 ℃ and 1500, to stir 10 minutes, promptly makes Ni-MH battery electrolyte.
The Performance Detection that electrolyte that embodiment 1 and 2 prepares and common electrolyte (Comparative Examples) are used for Ni-MH battery is following:
| Common electrolyte | Embodiment 1 | Embodiment 2 | |
| The normal temperature charge/discharge capacity | 1500mAh | 1600mAh | 1650mAh |
| Useful life | 2-3 | 3-4 | 3-4 |
More than specific embodiment of the present invention is described in detail, but it is just as example, the present invention is not restricted to the specific embodiment of above description.To those skilled in the art, any equivalent modifications that the present invention is carried out with substitute also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of being done under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (6)
1. the preparation method of the electrolyte of a Ni-MH battery is characterized in that, comprises the steps:
Step 1, the preparation alkaline solution:
With mass ratio is 2-3: 1-2: 0.5-1:0.3-0.6 potassium hydroxide, NaOH, lithium hydroxide and can make Mn
2+The MnSO that reaches capacity
4Mixture, under 40-50 ℃ and stirring condition,, be made into Mn with the aqueous solvent dissolving
2+Molar concentration is the solution of 8-10mol/L;
Step 2, prepare electrolysis additive:
Electrolysis additive is pressed following mass ratio:
Lithium nitrate 5-10
Carboxylic acid sodium 2-3
Polyalcohol 10-15
Nickel nitrate 1-2
Step 3 is mixed alkaline solution and electrolysis additive, preparation Ni-MH battery electrolyte:
Under 40-50 ℃ and stirring condition, be that the electrolysis additive of the 1-1.5% of alkaline solution joins in the aqueous slkali that the first step prepares with mass ratio, dissolving continues to stir 5-10 minutes, promptly makes Ni-MH battery electrolyte.
2. the preparation method of a Ni-MH battery electrolyte as claimed in claim 1, wherein, said aqueous solvent is redistilled water or deionized water.
3. the preparation method of a Ni-MH battery electrolyte as claimed in claim 1, wherein, said carboxylic acid sodium is sodium formate or sodium acetate.
4. the preparation method of a Ni-MH battery electrolyte as claimed in claim 1, wherein, said polyalcohol is dihydroxylic alcohols and/or trihydroxy alcohol.
5. the preparation method of a Ni-MH battery electrolyte as claimed in claim 4, wherein, said dihydroxylic alcohols is ethylene glycol and/or propane diols.
6. the preparation method of a Ni-MH battery electrolyte as claimed in claim 4, wherein, said trihydroxy alcohol is a glycerine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210315866.2A CN102800899B (en) | 2012-08-30 | 2012-08-30 | A kind of preparation method of electrolyte of nickel hydrogen battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210315866.2A CN102800899B (en) | 2012-08-30 | 2012-08-30 | A kind of preparation method of electrolyte of nickel hydrogen battery |
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| Publication Number | Publication Date |
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| CN102800899A true CN102800899A (en) | 2012-11-28 |
| CN102800899B CN102800899B (en) | 2016-11-09 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369672A (en) * | 2008-10-07 | 2009-02-18 | 湖南科力远新能源股份有限公司 | Special electrolytic solution for alkaline nickel-hydrogen battery |
| CN101871060A (en) * | 2010-06-21 | 2010-10-27 | 桂林电子科技大学 | Nickel-hydrogen battery negative electrode hydrogen storage material capable of being used at low temperature and matched electrolytic solution thereof |
| CN101924253A (en) * | 2009-06-15 | 2010-12-22 | 浙江师范大学 | Electrolyte additive of novel nickel-metal hydride secondary battery |
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2012
- 2012-08-30 CN CN201210315866.2A patent/CN102800899B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369672A (en) * | 2008-10-07 | 2009-02-18 | 湖南科力远新能源股份有限公司 | Special electrolytic solution for alkaline nickel-hydrogen battery |
| CN101924253A (en) * | 2009-06-15 | 2010-12-22 | 浙江师范大学 | Electrolyte additive of novel nickel-metal hydride secondary battery |
| CN101871060A (en) * | 2010-06-21 | 2010-10-27 | 桂林电子科技大学 | Nickel-hydrogen battery negative electrode hydrogen storage material capable of being used at low temperature and matched electrolytic solution thereof |
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| CN102800899B (en) | 2016-11-09 |
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Inventor after: Lu Hongxian Inventor before: Jiang Bo |
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Effective date of registration: 20171218 Address after: 535000 the Guangxi Zhuang Autonomous Region, Qinzhou, Qinnan District Building Street, No. 9 Patentee after: Qinzhou Industry Research Institute Address before: 201203 Shanghai Guo Shou Jing Road, Zhangjiang High Tech Park of Pudong New Area No. 351 Building No. 2 room 662-16 Patentee before: Shanghai Jinzhong Information Technology Co., Ltd. |
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Granted publication date: 20161109 Termination date: 20180830 |
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