CN101771172A - Intelligent formation process of nickel-metal hydride battery and battery prepared hereby - Google Patents
Intelligent formation process of nickel-metal hydride battery and battery prepared hereby Download PDFInfo
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- CN101771172A CN101771172A CN200810242779A CN200810242779A CN101771172A CN 101771172 A CN101771172 A CN 101771172A CN 200810242779 A CN200810242779 A CN 200810242779A CN 200810242779 A CN200810242779 A CN 200810242779A CN 101771172 A CN101771172 A CN 101771172A
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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 an intelligent formation process of a nickel-metal hydride battery and a battery prepared hereby. When in charging formation for the first time, the nickel-metal hydride battery is charged for 0.1-2 h by the current of 0.01C-0.2C multiplying power, is laid aside for 10-60h under the high temperature of 40-70 DEG C and is charged under constant power to the voltage of 1.35-1.4V under the condition of 0.3-0.5W; then the battery is charged to the current of 10-200mA under constant voltage, is discharged to 1.0V with the current of 0.1-0.5C after being laid aside and finally discharged to 1.0V with the current of 0.05C-0.1C. The anode material uses spherical nickel hydroxide, Co-coated spherical nickel hydroxide is used as anode active material, wherein Co, Zn, Cd and Y are added to the spherical nickel hydroxide, and Co(OH)2 or CoOOH is coated on the surface of the spherical nickel hydroxide. The nickel-metal hydride battery has the advantages of good cycle life and good capacitance consistency after cycle.
Description
Technical field:
The present invention relates to the chemical synthesizing method of Ni-MH battery and the battery of preparation.
Background technology
Ni-MH power cell has high-energy-density as the substitute electric power of nickel-cadmium cell, good high rate capability and low temperature performance, advantages such as long circulation life.Ni-H 2 power mostly is used in combination in use, and seldom single-unit uses, and just the coherence request to the capacity of battery, circulation, internal resistance is very high for this.Change into the performance impact of battery greatlyyer, changing into mainly is that CoO with in the pole piece is oxidized to CoOOH, forms the conductive network of CoOOH, reduces the ohmic internal resistance of battery, improves the chemical property of battery.
Summary of the invention
The object of the present invention is to provide a kind of Ni-MH battery cycle life of making good, the intelligent chemical synthesizing method of the Ni-MH battery of circulation back good capacitance consistency and the battery for preparing with this chemical synthesizing method.
The characteristics of intelligence chemical synthesizing method are that charging for the first time is divided into constant current charge, high temperature ageing, the charging of permanent power, four steps of constant voltage charge.Discharge is divided into two steps of constant-current discharge twice, and twice discharge-rate is different.
The Ni-MH battery that adopts the present invention's intelligence chemical synthesizing method to change into compares with the Ni-MH battery that conventional chemical synthesizing method changes into that to have cycle life good, the characteristics of circulation back good capacitance consistency.
Technology path provided by the present invention be Ni-MH battery when primary charging earlier with little pre-charge sub-fraction electric weight, owing in the primary charging process, CoO is oxidized and be coated on Ni (OH) with the form of β-CoOOH in alkaline solution
2Around the particle and Ni (OH)
2Between particle and the foaming Ni substrate, form the network of a high conductivity, thereby improved Ni (OH)
2Utilance.CoOOH is when just forming nucleus, and structure is also unstable, says high temperature ageing after a while, makes the Stability Analysis of Structures of nucleus, and on this basis, the mode with permanent power charging forms constitutionally stable CoOOH network, favourable formation β-NiOOH.Constant voltage charge can reduce inner pressure of battery effectively, improves the consistency of circulation back battery capacity.
According to the Ni-MH battery that intelligent chemical synthesizing method provided by the present invention changes into, the purpose division that can reach is as follows:
(1) solved because the capacity attenuation that β-the CoOOH structural instability causes.Since β-CoOOH structural instability causes the destruction of conductive network to cause between the positive active material particle and active material particle and foaming Ni substrate between the conductivity variation, consequence is that significantly decline takes place positive electrode capacity.Generally speaking, this decline is irreversible, even also can not get eliminating through the charge and discharge cycles of certain number of times.
(2) improved the consistency of battery capacity after the circulation.Ni-MH power cell mostly is used in combination in use, and seldom single-unit uses, and just the coherence request to the capacity of battery, circulation, internal resistance is very high for this.
The intelligent chemical synthesizing method of Ni-MH battery provided by the present invention comprises:
(1) little pre-charge: 0.01C-0.2C multiplying power current charges 0.1-2h,
(2) high temperature ageing: under 40-70 ℃ of hot conditions, shelve 10-60h,
(3) permanent power charging: under the 0.3-0.5W condition, permanent power charges to voltage 1.35-1.45V again,
(4) constant voltage charge: at 1.35-1.45V constant voltage charge to electric current is 10-200mA,
(5) constant-current discharge: use the 0.1-0.5C current discharge to 1.0V,
(6) low discharging current: the 0.05C-0.1C current discharge is to 1.0V.
Embodiment
Embodiment: pre-charge current and time
With a certain amount of hydrogen-storage alloy powder (AB
5) with after additive mixes, add a certain amount of binding agent and mix, mix according to 100: 4, add appropriate amount of deionized water and stir, adopt slurry technology, the alloyed powder slurry is coated on the nickel plating perforated steel ribbon equably, coated face density is 1900g/m
2With a certain amount of β-Ni (OH)
2Powder and CoO add proper amount of deionized water and account for Ni (OH) by 100: 5 mechanical mixture
21.5% ptfe emulsion stirs, and is coated in the nickel foam base band, and last powder amount is 1800g/m
2Drying, roll, cut into specification is: 250 * 30 * 0.6mm just very, and negative pole is 300 * 32 * 0.5mm, electrolyte is 30%KOH solution, through reeling, dress shell, slot rolling, fluid injection, sealing and be assembled into the 2.6Ah Ni-MH battery.
The following 4 kinds of condition presettings of battery process:
1. be precharged as 260mA constant current 1h;
2. the preliminary filling electric current is 1300mA constant current 0.2h;
3. the preliminary filling electric current is 1300mA constant current 1h;
4. be precharged as 260mA constant current 2h;
Shelve 48h behind the preliminary filling under 45 ℃ of conditions, the permanent power of 0.4W charges to voltage 1.4V, and constant voltage charge to electric current is 50mA under the 1.4V condition, shelves 0.5h, and the 1300mA constant-current discharge is to 1.0V, and the 260mA constant-current discharge is to 1.0V.
More than change into the battery that changes under the condition and respectively get 100, process 10C discharge cycles 100 times, test capacity, the result is as follows.
| Test event | Condition 1 | Condition 2 | Condition 3 | Condition 4 |
| Average size (mAh) | ??2478 | ??2450 | ??2445 | ??2465 |
| Range of capacity (mAh) | ??2468～2489 | ??2422～2469 | ??2419～2458 | ??2445～2478 |
Claims (4)
1. the intelligent chemical synthesizing method of a Ni-MH battery, it is characterized in that: Ni-MH battery charges for the first time and uses 0.01C-0.2C multiplying power current charges 0.1-2h when changing into earlier, under 40-70 ℃ of hot conditions, shelve 10-60h, again under the 0.3-0.5W condition, permanent power charges to voltage 1.35-1.45V, constant voltage charge to electric current is 10-200mA with this understanding, shelves the back and uses the 0.1-0.5C current discharge to 1.0V, uses the 0.05C-0.1C current discharge to 1.0V again.
2. battery with the intelligent chemical synthesizing method preparation of Ni-MH battery, it is characterized in that: positive electrode with spherical hickelous nydroxide, cover the cobalt spherical hickelous nydroxide as positive active material, wherein add Co, Zn, Cd, Y in the spherical hickelous nydroxide, cover the cobalt spherical hickelous nydroxide and coat Co (OH) on above-mentioned spherical hickelous nydroxide surface
2Or CoOOH.
3. the battery for preparing with the intelligent chemical synthesizing method of Ni-MH battery according to claim 2, it is characterized in that: negative pole adopts hydrogen-storage alloy powder.
4. the battery for preparing with the intelligent chemical synthesizing method of Ni-MH battery according to claim 2, it is characterized in that: plus plate current-collecting body adopts nickel foam, and negative current collector adopts nickel plated steel strip, and shell is the nickel plating box hat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810242779A CN101771172A (en) | 2008-12-30 | 2008-12-30 | Intelligent formation process of nickel-metal hydride battery and battery prepared hereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810242779A CN101771172A (en) | 2008-12-30 | 2008-12-30 | Intelligent formation process of nickel-metal hydride battery and battery prepared hereby |
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| CN101771172A true CN101771172A (en) | 2010-07-07 |
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| CN200810242779A Pending CN101771172A (en) | 2008-12-30 | 2008-12-30 | Intelligent formation process of nickel-metal hydride battery and battery prepared hereby |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956893A (en) * | 2012-11-01 | 2013-03-06 | 浙江天能能源科技有限公司 | Low-temperature nickel-hydrogen battery and preparation method thereof |
| CN103138021A (en) * | 2013-03-07 | 2013-06-05 | 清华大学 | Battery charging method |
| CN103198936A (en) * | 2013-03-07 | 2013-07-10 | 淄博国利新电源科技有限公司 | Capacitor battery grouping formation method |
| CN103682472A (en) * | 2012-09-05 | 2014-03-26 | 湖南格瑞普新能源有限公司 | Method for forming nickel-hydrogen battery |
| 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 |
| CN104316877A (en) * | 2014-01-09 | 2015-01-28 | 中航锂电（洛阳）有限公司 | Self-discharge detection method of lithium iron phosphate 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 |
| CN108808127A (en) * | 2018-06-14 | 2018-11-13 | 衡阳电科电源有限公司 | A kind of long-life high temperature battery formation method |
| CN109818087A (en) * | 2019-01-31 | 2019-05-28 | 浙江霖润新能源科技有限公司 | A kind of chemical synthesizing method of nickel-metal hydride battery |
| CN114975896A (en) * | 2021-02-25 | 2022-08-30 | 朴力美电动车辆活力株式会社 | Method for manufacturing nickel-metal hydride storage battery |
-
2008
- 2008-12-30 CN CN200810242779A patent/CN101771172A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682472A (en) * | 2012-09-05 | 2014-03-26 | 湖南格瑞普新能源有限公司 | Method for forming nickel-hydrogen battery |
| CN102956893B (en) * | 2012-11-01 | 2015-02-25 | 浙江天能能源科技有限公司 | Low-temperature nickel-hydrogen battery and preparation method thereof |
| CN102956893A (en) * | 2012-11-01 | 2013-03-06 | 浙江天能能源科技有限公司 | Low-temperature nickel-hydrogen battery and preparation method thereof |
| CN103138021B (en) * | 2013-03-07 | 2015-06-24 | 清华大学 | Battery charging method |
| CN103138021A (en) * | 2013-03-07 | 2013-06-05 | 清华大学 | Battery charging method |
| CN103198936B (en) * | 2013-03-07 | 2016-03-23 | 淄博君行电源技术有限公司 | The chemical synthesizing method in groups of capacitor batteries |
| CN103198936A (en) * | 2013-03-07 | 2013-07-10 | 淄博国利新电源科技有限公司 | Capacitor battery grouping formation method |
| CN104316877A (en) * | 2014-01-09 | 2015-01-28 | 中航锂电（洛阳）有限公司 | Self-discharge detection method of lithium iron phosphate battery |
| CN104316877B (en) * | 2014-01-09 | 2017-12-05 | 中航锂电（江苏）有限公司 | A kind of self discharge detection method of ferric phosphate lithium cell |
| 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 |
| CN108808127A (en) * | 2018-06-14 | 2018-11-13 | 衡阳电科电源有限公司 | A kind of long-life high temperature battery formation method |
| CN109818087A (en) * | 2019-01-31 | 2019-05-28 | 浙江霖润新能源科技有限公司 | A kind of chemical synthesizing method of nickel-metal hydride battery |
| CN109818087B (en) * | 2019-01-31 | 2022-04-22 | 浙江霖润新能源科技有限公司 | Formation method of nickel-metal hydride battery |
| CN114975896A (en) * | 2021-02-25 | 2022-08-30 | 朴力美电动车辆活力株式会社 | Method for manufacturing nickel-metal hydride storage battery |
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Application publication date: 20100707 |