CN103094626A - Method for forming nickel-hydrogen storage battery - Google Patents
Method for forming nickel-hydrogen storage battery Download PDFInfo
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- CN103094626A CN103094626A CN2012104097435A CN201210409743A CN103094626A CN 103094626 A CN103094626 A CN 103094626A CN 2012104097435 A CN2012104097435 A CN 2012104097435A CN 201210409743 A CN201210409743 A CN 201210409743A CN 103094626 A CN103094626 A CN 103094626A
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- hydrogen storage
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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 method for forming a nickel-hydrogen storage battery. The method comprises the following steps of: 1. filling electrolyte into a nickel-hydrogen storage battery which has been prepared and then sealing the nickel-hydrogen storage battery; 2. overdischarging the sealed nickel-hydrogen storage battery via 0.1-1C current and putting the nickel-hydrogen storage battery aside for 0-72 hours at 10-70 DEG C after overdischarging; and 3. carrying out charge-discharge forming on the battery one-five times according to the charge-discharge forming method after putting the battery aside, so that the increment of the battery capacity is not more than 2%, thus completing the forming process, wherein the overdischarge capacity is 2-50% of the battery design capacity. The method has the beneficial effects that not only are the battery capacity and the heavy current discharge capacity improved, but also the battery forming times and time are reduced and the cost of the battery is lowered; and the method can be widely applied to all kinds of nickel metal hydride batteries.
Description
Technical field
The present invention relates to a kind of chemical synthesizing method of nickel-hydrogen accumulator.
Background technology
What present nickel-hydrogen battery negative pole adopted is Rare-earth-based Hydrogen Storage Alloys, in the production and manufacturing process of packing, accumulating and the battery of alloy, alloy surface is as easy as rolling off a log oxidized, generate layer oxide film, this layer oxide-film not only increased the polarization resistance in the battery charge and discharge process, and hinder electrolyte to the impouring of active material particle inside, reduced the heavy-current discharge performance of active material utilization, battery and increased the interior pressure of battery.Present Ni-MH battery chemical synthesizing method is mainly after battery is annotated the electrolyte sealing, discharge and recharge with small electric stream, continuous circulation repeatedly, until battery performance reaches requirement, this method Main Problems is that to change into speed slow, in battery, active material utilization is low, and inner pressure of battery is unstable or higher.
Summary of the invention
The invention provides a kind of chemical synthesizing method of nickel-hydrogen accumulator, it has not only improved capacity and the large current discharging capability of battery, and shortened battery change into number of times and time, reduced the cost of battery, can be widely used in various types of metal hydride nickel storage batteries.
The present invention has adopted following technical scheme: a kind of chemical synthesizing method of nickel-hydrogen accumulator, and it comprises the following steps: step 1, can electrolyte in the nickel-hydrogen accumulator that completes is then through the row sealing; Step 2, then the electric current by 0.1-1C carries out overdischarge to the nickel-hydrogen accumulator after sealing, and the overdischarge capacity is the 2-50% of battery design capacity, is shelving 0-72 hour at 10-70 ℃ of temperature after overdischarge; Step 3 carries out making after 1-5 time discharge and recharge changes into the recruitment of battery capacity≤2% according to discharging and recharging the method that changes into to battery after shelving, formation process finishes.
The electric current that carries out overdischarge in step 2 of the present invention is 0.1C, and the time of overdischarge is 2 hours.The temperature of shelving after the overcurrent discharge in step 2 of the present invention is 55 ℃,, the time of shelving is 24 hours.Discharging and recharging the procedure that changes in step 3 of the present invention is: shelve after finishing current charges with 0.2C to 120% of battery design capacity, shelve again 30min, then discharge into 1.0V with 0.2C, shelve 30min, continuous circulation 1-5 time is until till the recruitment of battery capacity battery capacity≤2% according to the method described above.
the present invention has following beneficial effect: the present invention completes at battery and at first carries out overdischarge, the positive and negative electrode of battery all can produce a small amount of gas, the impact of gas cracks the active material particle surface, be beneficial to entering of electrolyte, and increased the specific area of active material, especially the unsalted surface that has greater activity, carrying out heat shelves again, make the oxide layer dissolving of electrode material surface, thereby make already oxidised surface become " fresh ", owing to charging, metallic cobalt in positive electrode is not converted into conductive network, therefore do not affect electrode performance, the variation on active material particle surface makes the battery forming current to increase, reduced and changed into number of times and change into the time, electrode active surface improves simultaneously, reduce inner pressure of battery and improved active material utilization, capacity and the large current discharging capability of battery have been improved, can be widely used in various types of metal hydride nickel storage batteries.
Embodiment
Embodiment one, and the anode of nickel-metal hydride battery plate is made in the following way.Nickel hydroxide powder, additive etc. are joined in water and adhesive, mix the formation lotion, lotion is filled in the Foamed Nickel porous body, drying, roll, cut etc. is made into battery positive plate; Negative plate is made in the following way.Add a certain amount of thickener, conductive agent in hydrogen-storage alloy, it fully is mixed and made into lotion.Then, identical with positive plate, be filled in the Foamed Nickel porous body, drying, roll, cut etc. is made into battery positive plate; Above-mentioned positive plate negative plate and barrier film etc. are made into battery, perfusion electrolyte, sealing.Adopt respectively three kinds of different chemical synthesizing methods to change into.Then battery is carried out capacity, interior pressure and power-performance and detect, battery Theoretical Design capacity is 20Ah.The invention discloses a kind of chemical synthesizing method of nickel-hydrogen accumulator, it comprises the following steps: step 1, and can electrolyte, then seal in the nickel-hydrogen accumulator that completes; Step 2, then the electric current by 0.1C carried out overdischarge 2 hours to the nickel-hydrogen accumulator after sealing, and the overdischarge capacity is the 2-50% of battery design capacity, is shelving 24 hours at 55 ℃ of temperature after overdischarge; Step 3, shelve finish after with the current charges of 0.2C to 120% of battery design capacity, then shelve 30min, then discharge into 1.0V with 0.2C, shelve 30min, according to above-mentioned charging/discharging thereof continuous circulation 5 times until till the recruitment of battery capacity battery capacity≤2%.
The present invention is in order to further illustrate the chemical synthesizing method of nickel-hydrogen accumulator of the present invention:
Contrast chemical synthesizing method 1:: after the sealing of battery perfusion electrolyte, to 120% of design capacity, shelve 30min with the 0.1C current charges, then with the 0.2C current discharge to 1.0V, shelve 30min.Continuous circulation is until the battery capacity increase is no more than till 2%; Contrast chemical synthesizing method 2: after the sealing of battery perfusion electrolyte, shelve 24h at 55 ℃ of temperature, then carry out charge and discharge cycles by the method that changes into system 1, until the battery capacity increase is no more than till 2%.
The below chemical synthesizing method 2 compare after draws following result with contrast chemical synthesizing method 1 with contrasting with the chemical synthesizing method of nickel-hydrogen accumulator of the present invention:
| ? | Contrast chemical synthesizing method 1 | Contrast chemical synthesizing method 2 | The chemical synthesizing method of nickel-hydrogen accumulator of the present invention |
| The charge and discharge cycles number of times | 5 | 4 | 3 |
| Detect average size Ah | 20.56 | 21.32 | 23.45 |
| Average size increases percentage %(and chemical synthesizing method 1 compares) | / | 3.70 | 14.06 |
| The highest interior pressure of battery (atm) | 9.6 | 7.3 | 5.2 |
| 5C discharge capacity Ah | 18.73 | 20.12 | 20.56 |
| 5C discharge average voltage V | 1.142 | 1.153 | 1.172 |
From the table as can be known, the battery that the method for employing chemical synthesizing method 3 changes into, battery capacity obviously improves, capacity than conventional chemical synthesizing method (method 1 and method 2) is high more than 10%, and the large current discharging capability of battery obviously improves, the highest interior pressure of battery obviously reduces, and has shortened and change into number of times.
Claims (4)
1. the chemical synthesizing method of a nickel-hydrogen accumulator, it comprises the following steps:
Step 1, can electrolyte in the nickel-hydrogen accumulator that completes is then through the row sealing;
Step 2, then the electric current by 0.1-1C carries out overdischarge to the nickel-hydrogen accumulator after sealing, and the overdischarge capacity is the 2-50% of battery design capacity, is shelving 0-72 hour at 10-70 ℃ of temperature after overdischarge;
Step 3 carries out making after 1-5 time discharge and recharge changes into the recruitment of battery capacity≤2% according to discharging and recharging the method that changes into to battery after shelving, formation process finishes.
2. the chemical synthesizing method of nickel-hydrogen accumulator according to claim 1, the electric current that it is characterized in that carrying out in step 2 overdischarge is 0.1C, the time of overdischarge is 2 hours.
3. the chemical synthesizing method of nickel-hydrogen accumulator according to claim 1, is characterized in that the temperature of shelving after the overcurrent discharge in step 2 is 55 ℃,, the time of shelving is 24 hours.
4. the chemical synthesizing method of nickel-hydrogen accumulator according to claim 1, it is characterized in that discharging and recharging the procedure that changes in step 3 is: shelve after finishing current charges with 0.2C to 120% of battery design capacity, shelve again 30min, then discharge into 1.0V with 0.2C, shelve 30min, at last according to above-mentioned method continuous circulation 1-5 time that changes into of discharging and recharging until till the recruitment of battery capacity battery capacity≤2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210409743.5A CN103094626B (en) | 2011-10-25 | 2012-10-24 | A kind of chemical synthesizing method of nickel-hydrogen accumulator |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103262182 | 2011-10-25 | ||
| CN201110326218 | 2011-10-25 | ||
| CN201110326218.2 | 2011-10-25 | ||
| CN201210409743.5A CN103094626B (en) | 2011-10-25 | 2012-10-24 | A kind of chemical synthesizing method of nickel-hydrogen accumulator |
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| Publication Number | Publication Date |
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| CN103094626A true CN103094626A (en) | 2013-05-08 |
| CN103094626B CN103094626B (en) | 2016-08-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218265A (en) * | 2014-09-23 | 2014-12-17 | 益阳科力远电池有限责任公司 | Forming method of nickel-metal hydride battery |
| CN106532141A (en) * | 2016-12-27 | 2017-03-22 | 中科泰能高铭科技发展有限公司 | Formation method of battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002298905A (en) * | 2001-03-29 | 2002-10-11 | Toshiba Battery Co Ltd | Method of manufacturing nickel-hydrogen secondary battery |
| US20030137282A1 (en) * | 2002-01-23 | 2003-07-24 | Kainthla Ramesh C. | Formation procedure for alkaline nickel-zinc cells |
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2012
- 2012-10-24 CN CN201210409743.5A patent/CN103094626B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002298905A (en) * | 2001-03-29 | 2002-10-11 | Toshiba Battery Co Ltd | Method of manufacturing nickel-hydrogen secondary battery |
| US20030137282A1 (en) * | 2002-01-23 | 2003-07-24 | Kainthla Ramesh C. | Formation procedure for alkaline nickel-zinc cells |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218265A (en) * | 2014-09-23 | 2014-12-17 | 益阳科力远电池有限责任公司 | Forming method of nickel-metal hydride battery |
| CN106532141A (en) * | 2016-12-27 | 2017-03-22 | 中科泰能高铭科技发展有限公司 | Formation method of battery |
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| Publication number | Publication date |
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| CN103094626B (en) | 2016-08-10 |
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