CN105140574B - A kind of Ni-MH power cell and preparation method thereof - Google Patents

A kind of Ni-MH power cell and preparation method thereof Download PDF

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Publication number
CN105140574B
CN105140574B CN201510434308.1A CN201510434308A CN105140574B CN 105140574 B CN105140574 B CN 105140574B CN 201510434308 A CN201510434308 A CN 201510434308A CN 105140574 B CN105140574 B CN 105140574B
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positive electrode
electrolyte
positive
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cobalt
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CN105140574A (en
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吴勇波
邓志荣
曾应平
何利辉
邓志华
祝东贵
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DONGGUAN LANGTAITONG INDUSTRIAL Co.,Ltd.
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SHENZHEN LANGTAITONG ELECTRONIC CO Ltd
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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
    • H01M10/24—Alkaline accumulators
    • H01M10/30—Nickel accumulators
    • 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
    • H01M10/24—Alkaline accumulators
    • H01M10/28—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/32—Nickel oxide or hydroxide electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

The present invention provides a kind of Ni-MH power cell and preparation method thereof, it is made up of ni-mh compound anelectrode, hydrogen bearing alloy negative electrode and alkaline electrolyte, positive electrode active materials are nickel hydroxide crystal 70.19 74.57%, nickel hydroxide surface cladding cobalt content is 14.23 15.31%, zinc 4.0 %4.50%, cobalt 0.7 1.5%, positive electrode active materials add ultralow temperature activating agent 6.5 8.5%, negative pole matrix is using superconducting copper mesh, copper mesh is three dimensional structure, by Mm34.5 nickel 53.0, cobalt 6.5, manganese 5.0 aluminum 1.0 and 0.5 part of additive form negative-electrode hydrogen-storage alloy powder.

Description

A kind of Ni-MH power cell and preparation method thereof
Technical field
The present invention relates to electrode, particularly a kind of Ni-MH battery and preparation method thereof, belong to electrochemical field.
Background technology
At present, disclosure satisfy that the power accumulator type of needs is mainly lithium ion battery, Ni-MH battery and fuel cell.
However, the safety issue of lithium ion battery exists always, power-type lithium ion battery also exist overcharge resistance performance with The problems such as heat stability difference, fuel cell is still in developmental stage.Ni-MH battery is right because electrode material does not contain cadmium, lead, hydrargyrum etc. Environment causes the heavy metal element of high risks to be known as " environment-friendly battery ", and its energy density is high, output power, so in city Than nickel-cadmium cell more competitive superiority on.From the nineties in last century, the developed countries and regions such as Japanese, American-European just forbid this Ground produce nickel-cadmium cell, the developed countries and regions also nonimportation nickel-cadmium cell such as in recent years Japanese, American-European, nickel-cadmium cell progressively by Low-capacity nickel-hydrogen battery replaces.Ni-MH power cell (Ni/MH battery) with its high-energy-density, high-specific-power, have extended cycle life, anti- Overcharge the excellent combination properties such as exoergic power is strong and pollution is little, be suitable for heavy-current discharge, charge soon and safety is good, Er Qie electricity Pond manufacturing technology also relative maturity, the adaptability that EV and HEV is travelled with feature is also higher, compares other type cell ni-mhs and moves Power battery develops the best power source power supply of medium-term goal by becoming EV and HEV.
The positive electrode of Ni-MH power cell is all that electrode capacity is less just starting, because the oxygen nickel oxide heap being used Long-pending density is relatively low.Researcher all over the world is actively probed into high-bulk-density, is had answering of superior cycle life stability Oxidisability positive electrode is it is desirable to obtain Novel nickek-hydrogen power battery.Just prepare nanometer hydrogen-oxygen early in age scientist Change nickel and add the chemical modifiers such as zinc, cobalt, copper in ball-type, the chemical property of oxygen nickel oxide is improved with this.Preparation More complicated with studying, its preparation condition is also very complicated, because extremely unstable in alkali liquor, experimentation is shown to be to be prepared One of journey Jie's stable state.For stable crystal structure in preparation process, general interpolation some element ions such as zinc, cobalt, manganese. Meanwhile, current nano oxygen nickel oxide research and preparation are subject to everybody common concern, and experimentation is pointed out and general micron Level nickel hydroxide compares, and nanometer hydroxide town shows preferable chemical property, and proton migration rate is improved, reduces Electrode internal resistance, improves active rate and polarization phenomena weakens.
Common Ni-MH battery is cylinder, and the shell of battery is nickel plating box hat, positive electrode active materials be nickel hydroxide and A small amount of additive, negative active core-shell material is hydrogen-storage alloy, and electrolyte is potassium hydroxide solution.Nickel-cadmium cell outstanding feature is just It is cheap, and equivalent capability Ni-MH battery will replace nickel-cadmium cell, also have to comply with cheap requirement.Ni-MH battery Gram specific energy or gram specific capacity are of a relatively high, and, nickel-cadmium cell belongs to normal capacity taking AA600 battery as a example, i.e. active substance or electricity Pole pole group can adequately fill up inside battery space；And Ni-MH battery belongs to ultra-low volume category, active substance or electrode pole group are filled out Fill the basic half less than inside battery space, thus produce series of problems:If leaving battery container remaining space inside Excessive, the amount of active substance or electrode pole group assembling elasticity too small, be unfavorable for active substance chemical reaction and because assembling Elasticity is too small and causes qualification rate low and danger that pole group is rocked in housing；And if full inside battery space will be filled, The amount of active substance and barrier film certainly will again be wasted, increased cost. domestic manufacturer is typically to increase both positive and negative polarity carrier and barrier film Measure and to improve assembling elasticity, this undoubtedly increased cost.The filling of ni-mh low-capacity batteries active substance is relatively fewer, and profile Size is by International standardization.Under the conditions of equivalent capability, big more than 2 times of the internal space ratio NI-CD battery of NI-MH battery, Do low-capacity batteries and need to design battery assembling ratio, therefore inside battery space needs to fill, otherwise battery elasticity is too little, performance Difference.Traditional handicraft diaphragm paper is filled with, relatively costly.But existing nickel-hydrogen chargeable cell has self-discharge of battery again Greatly, charged keep poor, user to need before use first to charge, be unable to long term storage after battery charging, the shortcomings of electric quantity loss is fast.
Content of the invention
Present invention solves the technical problem that being achieved through the following technical solutions：There is provided a kind of Ni-MH power cell, its feature It is, it is made up of ni-mh compound anelectrode, hydrogen bearing alloy negative electrode and alkaline electrolyte, positive electrode active materials are hydrogen-oxygen Change nickel crystal 70.19-74.57 part, nickel hydroxide surface cladding cobalt content is 14.23-15.31 part, zinc 4.0-%4.50 part, cobalt 0.7-1.5 part, positive electrode active materials add ultralow temperature activating agent 6.5-8.5 part, and ultralow temperature activating agent is cobalt hydroxide, oxidation Ytterbium, and cobalt hydroxide：Ytterbium oxide is 5-6:0.5-1, positive electrode substrate is Foamed Nickel, and negative pole matrix is using superconducting copper mesh, copper Net is three dimensional structure, and negative-electrode hydrogen-storage alloy powder is by 53.0 parts of 34.5 parts of nickel of molybdenum, 6.5 parts of cobalt, 1.0 parts of 5.0 parts of aluminum of manganese and additive 0.5 part of composition, described additive is cerium：Praseodymium：Superconductive carbon black is 0.5-1：0.5 composition；
Electrolyte comprises 6%KOH solution, 22%NaOH solution, 2%NaLiOH solution.
Preferably,
Positive pole size：18*70*0.66mm negative pole size：18*104*0.29mm, or
Positive pole size：20*80*0.63mm negative pole size：20.2*114*0.26mm
By the application of pole piece size adjusting, fine formula and various specialist additive, solve battery in extremely low temperature Problem of passivation under environment, makes battery can use (- 40～+70 DEG C) in wide temperature range.
Preferably,
Superconductive carbon black surface area is in (2000 ± 200)/g.
Preferably,
Add yttrium oxide or one of three Erbias and cobalt hydroxide or two or more of 1-3% in positive electrode Combination as stabilizer thus the requirement that reaches a high temperature.
Preferably,
Positive pole chip size：47.5 (high) × 550 (length) × 0.46 (thick) mm
Negative pole size：49×620.0×0.26
Diaphragm size：51±0.2×1200±1.0×0.22
The present invention also provides the preparation method of Ni-MH battery, rolls including positive pole making step, negative pole making step, barrier film Step, electrolyte implantation step and sealing step it is characterised in that
Described positive pole making step includes following sub-step：
a1：Prepared by positive electrode：By positive electrode active materials, additive mix homogeneously, prepared positive electrode；
a2：Positive electrode is coated with：The positive electrode being obtained in step a1 is uniformly coated in positive electrode substrate；Described positive pole Matrix is Foamed Nickel；
a3：Positive pole tabletting：It is coated with the positive electrode substrate of positive electrode, prepared positive plate in pressing step a2；Described positive pole The length of piece is 110～115mm, and the width of described positive plate is 44～45mm, the thickness of described positive plate is 0.65～ 0.7mm；
Described negative pole making step includes following sub-step：
b1：Negative material is coated with：Alloyed powder is uniformly coated on and superconducts on copper mesh；
b2：Negative pole tabletting：Be coated with alloyed powder in pressing step b1 superconducts copper mesh, prepared negative plate；
The length of described negative plate is 140～150mm, and the width of described negative plate is 44～45mm, described negative plate Thickness is 0.25～0.3mm；
Described electrolyte implantation step includes following sub-step：
c1：Electrolyte quota：Alkaline electrolyte is dissolved in solvent, prepared electrolyte；
c2：Electrolyte injects：By the electrolyte being obtained in step c1 injection inside the shell, the consumption of electrolyte is 2.6～ 2.8g.
Ball-type covers the specific surface area 10.81 of cobalt nickel hydroxide, and the SC3000mAh battery specific capacity that it makes is It is 1.12V that 231.6mAh/g, 10C are discharged to 0.8V mean voltage, and 10C cycle life is 300 weeks.Ball-type covers cobalt nickel hydroxide Specific capacity improves to 240.1mAh/g from 224.2mAh/g with the increase of specific surface area in 6-13/g range.Ball-type covers cobalt The life-span of nickel hydroxide increases with the increase of Zn (w%) content, and Zn (w%) content increases to 4.50%, 10C from 3.59% and follows The ring life-span increased to 300 weeks from 216 weeks.The main cause that life-span increases is the combination of Zn, Co, and it is collaborative to there is certain consumption Effect is it is suppressed that ball-type covers expansion in charge and discharge process for the cobalt nickel hydroxide.
Implement Ni-MH battery of the present invention and obtain following beneficial effect：It is found through experiments, deposited metal chemical combination in positive pole After thing, with the rising of temperature, the discharge capacity of the battery of the yttrium that adulterates exceeds much than plain discharge capacity, typically exists More than 25%.When 60 degree, its discharge capacity exceeds nearly 30% than conventional.C, optimize electrolyte constituent with Improve oxygen evolution potential；D, alloy surface are processed to improve the antioxidative ability of vestige；E, improve the compound of negative terminal surface oxygen Ability and realize.Enable battery normal discharge and recharge under the conditions of 90 DEG C, common batteries only adapt to 45 DEG C used below.
Specific embodiment
Embodiment 1.
Positive electrode active materials are nickel hydroxide crystal 70.19g, and nickel hydroxide surface cladding cobalt content is 15.31g, zinc 4.50g, cobalt 1.5g, cobalt hydroxide 5.6g, ytterbium oxide 0.9g, positive electrode substrate is Foamed Nickel,
Using superconducting copper mesh, copper mesh is three dimensional structure to negative pole matrix, and negative-electrode hydrogen-storage alloy powder is by molybdenum 34.5g nickel 53.0g, cobalt 6.5g, manganese 5.0g aluminum 1.0g and additive 0.5g composition, described additive is cerium：Praseodymium：Superconductive carbon black is 0.5- 1：0.5 composition；
Electrolyte comprises 6%KOH solution, 22%NaOH solution, 2%NaLiOH solution.
Described positive pole making step includes following sub-step：
a1：Prepared by positive electrode：By positive electrode active materials, additive mix homogeneously, prepared positive electrode；
a2：Positive electrode is coated with：The positive electrode being obtained in step a1 is uniformly coated in positive electrode substrate；Described positive pole Matrix is Foamed Nickel；
a3：Positive pole tabletting：It is coated with the positive electrode substrate of positive electrode, prepared positive plate in pressing step a2；Positive pole size： 18*70*0.66mm
Described negative pole making step includes following sub-step：
b1：Negative material is coated with：Alloyed powder is uniformly coated on and superconducts on copper mesh；
b2：Negative pole tabletting：Be coated with alloyed powder in pressing step b1 superconducts copper mesh, prepared negative plate；
Negative pole size：18*104*0.29mm
Described electrolyte implantation step includes following sub-step：
c1：Electrolyte quota：Alkaline electrolyte is dissolved in solvent, prepared electrolyte；
c2：Electrolyte injects：By the electrolyte being obtained in step c1 injection inside the shell, the consumption of electrolyte is 2.6～ 2.8g.
Battery charging and discharging cycle life is pressed IEC standard and is tested >=1000 times.Electrical property is remarkable.Number using this battery Phase function takes a picture about 510, can be taken pictures agreement that contracts a film or TV play to an actor or actress 110 using alkaline battery.The electrical property of this battery is higher than alkaline battery Go out about 5 times.Good low temperature serviceability.Battery can release more than the 90% of room temperature capacity at -20 DEG C.
Embodiment 2
Positive electrode active materials are nickel hydroxide crystal 74.57g, and nickel hydroxide surface cladding cobalt content is 14.23g, zinc 4.0g, cobalt 0.7g, positive electrode active materials add ultralow temperature activating agent 8.5g, and ultralow temperature activating agent is cobalt hydroxide, ytterbium oxide, and And cobalt hydroxide：Ytterbium oxide is 5-6:0.5-1, positive electrode substrate is Foamed Nickel,
Using superconducting copper mesh, copper mesh is three dimensional structure to negative pole matrix, and negative-electrode hydrogen-storage alloy powder is by molybdenum 34.5g nickel 53.0g, cobalt 6.5g, manganese 5.0g aluminum 1.0g and additive 0.5g composition, described additive is cerium：Praseodymium：Superconductive carbon black is 0.5- 1：0.5 composition；
Electrolyte comprises 6%KOH solution, 22%NaOH solution, 2%NaLiOH solution.
Described positive pole making step includes following sub-step：
a1：Prepared by positive electrode：By positive electrode active materials, additive mix homogeneously, prepared positive electrode；
a2：Positive electrode is coated with：The positive electrode being obtained in step a1 is uniformly coated in positive electrode substrate；Described positive pole Matrix is Foamed Nickel；
a3：Positive pole tabletting：It is coated with the positive electrode substrate of positive electrode, prepared positive plate in pressing step a2；Positive pole size： 18*70*0.66mm
Described negative pole making step includes following sub-step：
b1：Negative material is coated with：Alloyed powder is uniformly coated on and superconducts on copper mesh；
b2：Negative pole tabletting：Be coated with alloyed powder in pressing step b1 superconducts copper mesh, prepared negative plate；
Negative pole size：18*104*0.29mm
Described electrolyte implantation step includes following sub-step：
c1：Electrolyte quota：Alkaline electrolyte is dissolved in solvent, prepared electrolyte；
c2：Electrolyte injects：By the electrolyte being obtained in step c1 injection inside the shell, the consumption of electrolyte is 2.6～ 2.8g.
Anode：
Ni(OH)2+OH-===NiOOH+H2O+e (1)
Battery cathode：
M+H2O+e===MH+OH-(2)
Battery overall reaction：
M+Ni(OH)2===NiOOH+MH (3)
In formula, M is hydrogen bearing alloy；MH is the hydrogen bearing alloy having adsorbed hydrogen atom.
The filling of ni-mh low-capacity batteries active substance is relatively fewer, and overall dimensions are by International standardization.Hold equal Under the conditions of amount, big more than 2 times of the internal space ratio NI-CD battery of NI-MH battery, does low-capacity batteries and need to design battery assembling Than, therefore inside battery space needs to fill, otherwise battery elasticity is too little, poor performance.Traditional handicraft diaphragm paper is filled with, and becomes This is higher.The present invention puts into plastic column a size of in box hat bottom：￠ 13.2mm × H20.0mm is filled with, required barrier film chi Very little it is：Length × wide=197mm × 20.0mm, pole after winding is assembled in box hat.By to box hat inside filled plastics post, dropping Low box hat inner space, reduces cost, for the purpose of improving qualification rate.
Cost comparisons：
Note：This project battery is than conventional batteries cost savings：0.26 yuan/only. (barrier film unit price：56 yuan every square metre)
In a preferred embodiment, increase the conductive area of positive pole, positive plate upper end exposed 3～5mm Foamed Nickel is not Upper powder, before winding molding assembly, tail end is cut out and is gone the prevention of 45mm Foamed Nickel and the short circuit of tail circle cathode contact, then by exposed Foamed Nickel Compacting, welds anode collection disk, so that the electric current moment of whole positive pole is concentrated.
, follow-on anode pole piece conducting surface width is taking A1000 electrokinetic cell as a example：115mm, and plain edition is 2* 4mm (the wide pure nickel lug of 2 4mm)=8mm.The frame mode that positive pole welds current collecting plates makes the length of whole positive plate equal and afflux Body contacts, and greatly reduces the structure internal resistance of whole battery, so that the path of electric current output is shortened simultaneously, accelerates the speed of afflux Degree, makes whole power performance be improved.
In another preferred embodiment, negative pole adopts copper mesh as conductive base, and copper mesh has high conduction performance, Copper mesh flanging has sawtooth simultaneously, is easy to contact with box hat bottom.For improving negative pole currect collecting effect, the bottom within box hat further Portion's pad one block size is equal to the Foamed Nickel of box hat internal diameter, and after making winding, prominent negative pole copper mesh spine is pressed in Foamed Nickel after entering shell On, increased the area of battery bottom contact on the basis of original electrokinetic cell.Negative pole piece of battery conductive area width is：
20 (pole piece height) × 50.24 (winding tail circle length)+8 × 8 × 3.14 (pole group bottom areas)= 1205.76mm2
And negative pole leans on the frame mode at bottom so that the length of whole negative plate is all contacted with box hat, makes the road of electric current output simultaneously Footpath shortens, and greatly reduces the structure internal resistance of whole battery, accelerates the speed of afflux, so that whole power performance is improved.
Above-mentioned detailed description is illustrating for one of them possible embodiments of the present invention, and this embodiment is simultaneously not used to Limit the scope of the claims of the present invention, all equivalence enforcements done without departing from the present invention or change, be intended to be limited solely by the technology of the present invention In the range of scheme.

Claims (5)

1. a kind of Ni-MH power cell is it is characterised in that it is by ni-mh compound anelectrode, hydrogen bearing alloy negative electrode and alkalescence Electrolyte forms, and wherein, according to the gauge of material, positive electrode active materials are nickel hydroxide crystal 70.19-74.57 part, hydroxide Nickel surface cladding cobalt content is 14.23-15.31 part, zinc 4.0-4.50 part, cobalt 0.7-1.5 part, and positive electrode active materials add ultralow Warm activating agent 6.5-8.5 part, ultralow temperature activating agent is cobalt hydroxide, ytterbium oxide, and cobalt hydroxide：Ytterbium oxide is 5-6:0.5- 1, positive electrode substrate is Foamed Nickel, and using superconducting copper mesh, copper mesh is three dimensional structure to negative pole matrix, and negative-electrode hydrogen-storage alloy powder is by molybdenum 34.5 parts, 53.0 parts of nickel, 6.5 parts of cobalt, 5.0 parts of manganese, 1.0 parts of aluminum and 0.5 part of composition of additive；
Described additive is cerium：Praseodymium：Superconductive carbon black is 0.5：1：0.5 composition；
Electrolyte comprises the solution of 6%KOH, 22%NaOH and 2%LiOH.
2. Ni-MH power cell as claimed in claim 1 it is characterised in that
Positive pole size：18*70*0.66mm negative pole size：18*104*0.29mm, or positive pole size：20*80*0.63mm negative pole chi Very little：20.2*114*0.26mm.
3. Ni-MH power cell as claimed in claim 1 is it is characterised in that superconductive carbon black surface area is in (2000 ± 200) ㎡/g.
4. Ni-MH power cell as claimed in claim 1 is it is characterised in that add three oxidations two of 1-3% in positive electrode The combination of one of yttrium or three Erbias and cobalt hydroxide or two kinds is as stabilizer.
5. the preparation method of Ni-MH power cell as claimed in claim 1, including positive pole making step, negative pole making step, Barrier film rolls step, electrolyte implantation step and sealing step it is characterised in that described positive pole making step includes following sub-step Suddenly：
a1：Prepared by positive electrode：By the ultralow temperature activating agent mix homogeneously of positive electrode active materials, interpolation, prepared positive electrode；
a2：Positive electrode is coated with：The positive electrode being obtained in step a1 is uniformly coated in positive electrode substrate；a3：Positive pole tabletting： It is coated with the positive electrode substrate of positive electrode, prepared positive plate in pressing step a2；The length of described positive plate is 110～115mm, The width of described positive plate is 44～45mm, and the thickness of described positive plate is 0.65～0.7mm；
Described negative pole making step includes following sub-step：
b1：Negative material is coated with：Alloyed powder is uniformly coated on and superconducts on copper mesh；
b2：Negative pole tabletting：Be coated with alloyed powder in pressing step b1 superconducts copper mesh, prepared negative plate；
The length of described negative plate is 140～150mm, and the width of described negative plate is 44～45mm, the thickness of described negative plate For 0.25～0.3mm；
Described electrolyte implantation step includes following sub-step：
c1：Electrolyte quota：Alkaline electrolyte is dissolved in solvent, prepared electrolyte；
c2：Electrolyte injects：By the electrolyte being obtained in step c1 injection inside the shell, the consumption of electrolyte is 2.6～2.8g.
CN201510434308.1A 2015-07-22 2015-07-22 A kind of Ni-MH power cell and preparation method thereof Active CN105140574B (en)

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CN101297432A (en) * 2005-10-28 2008-10-29 三洋电机株式会社 Nickel-metal hydride battery
CN103477471A (en) * 2011-04-18 2013-12-25 朴力美电动车辆活力株式会社 Alkaline storage battery anode, method for producing alkaline storage battery anode, alkaline storage battery, method for producing alkaline storage battery, anode active material for alkaline storage battery, method for producing anode active material for alkaline storage battery

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Publication number Priority date Publication date Assignee Title
CN1142251A (en) * 1994-11-07 1997-02-05 三德金属工业株式会社 Age-precipitating rare earth metal-nickel alloy, its manufacture and negative electrode for nickel-hydrogen secondary cell
CN101297432A (en) * 2005-10-28 2008-10-29 三洋电机株式会社 Nickel-metal hydride battery
CN101154726A (en) * 2006-09-29 2008-04-02 比亚迪股份有限公司 Anode active substance and its preparing method and anode and battery
CN103477471A (en) * 2011-04-18 2013-12-25 朴力美电动车辆活力株式会社 Alkaline storage battery anode, method for producing alkaline storage battery anode, alkaline storage battery, method for producing alkaline storage battery, anode active material for alkaline storage battery, method for producing anode active material for alkaline storage battery

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