CN105789567B - A kind of nickel positive pole preparation method, nickel positive pole and its application - Google Patents
A kind of nickel positive pole preparation method, nickel positive pole and its application Download PDFInfo
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- CN105789567B CN105789567B CN201410820616.3A CN201410820616A CN105789567B CN 105789567 B CN105789567 B CN 105789567B CN 201410820616 A CN201410820616 A CN 201410820616A CN 105789567 B CN105789567 B CN 105789567B
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- nickel
- positive pole
- presoma
- sizing agent
- anode sizing
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 177
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 88
- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 claims abstract description 80
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 72
- 238000004513 sizing Methods 0.000 claims abstract description 71
- 239000002562 thickening agent Substances 0.000 claims abstract description 37
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 27
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 26
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 26
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 26
- 238000001035 drying Methods 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 239000002904 solvent Substances 0.000 claims abstract description 13
- 239000002253 acid Substances 0.000 claims abstract description 9
- 229920001577 copolymer Polymers 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 8
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 8
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 8
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 7
- 150000001336 alkenes Chemical class 0.000 claims abstract description 5
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims abstract description 5
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 230000008719 thickening Effects 0.000 claims description 8
- 229910052987 metal hydride Inorganic materials 0.000 claims description 5
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 125000002843 carboxylic acid group Chemical group 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 239000004743 Polypropylene Substances 0.000 claims 1
- 238000005187 foaming Methods 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 238000004062 sedimentation Methods 0.000 abstract description 36
- 239000002002 slurry Substances 0.000 abstract description 33
- 238000003756 stirring Methods 0.000 abstract description 30
- 239000000126 substance Substances 0.000 abstract description 25
- 239000007864 aqueous solution Substances 0.000 description 28
- 229920002125 Sokalan® Polymers 0.000 description 26
- 239000004584 polyacrylic acid Substances 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 16
- 238000003466 welding Methods 0.000 description 15
- 206010013786 Dry skin Diseases 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 14
- 239000012530 fluid Substances 0.000 description 14
- 238000002347 injection Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 14
- 238000007789 sealing Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 239000003513 alkali Substances 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 150000002815 nickel Chemical class 0.000 description 2
- 229910000480 nickel oxide Inorganic materials 0.000 description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- MUZDXNQOSGWMJJ-UHFFFAOYSA-N 2-methylprop-2-enoic acid;prop-2-enoic acid Chemical compound OC(=O)C=C.CC(=C)C(O)=O MUZDXNQOSGWMJJ-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical group [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 150000005837 radical ions Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
When to overcome preparation method in the prior art to prepare nickel positive pole; slurry usually will appear the problem of obvious sedimentation; the present invention provides a kind of nickel positive pole preparation methods; include the following steps: S1, mix nickel hydroxide with solvent, thickener and presoma; and stir evenly, obtain anode sizing agent；The thickener is selected from one of carboxymethyl cellulose, hydroxypropyl methyl cellulose, polyvinyl alcohol or a variety of；The presoma is olefin(e) acid copolymer；S2, anode sizing agent is coated on positive carrier, obtains the anode after drying, rolling, cut-parts.Meanwhile the present invention also provides the nickel positive pole being prepared by this method and its applications.The slurry of nickel positive pole preparation method preparation provided by the invention can greatly reduce the sedimentation of ball-shape nickel hydroxide in slurry, guarantee the workability of slurry and the chemical property of battery.
Description
Technical field
The present invention relates to a kind of positive preparation method of nickel power supply, nickel positive pole and its applications.
Background technique
Direction with various electrical equipments towards miniaturization, portability is developed, and battery has obtained more and more extensive answer
With.Battery can be divided into one-shot battery and secondary cell, and one-shot battery can not be recharged after being discharged, can only be discarded.It is secondary
Battery is also known as rechargeable battery, after being discharged, can charge again, is recycled.So in electric tool, electricity
In movable toy, secondary cell is generallyd use.Therefore, the demand for the nickel-base alkaline secondary cell that can be recycled for multiple times is also increasingly
Greatly.
Nickel-base alkaline secondary cell includes metal-hydrogen nickel battery (hereinafter referred to as nickel-metal hydride battery), ickel-cadmium cell, iron nickel
Battery, zinc-nickel cell etc., they use nickel hydroxide as positive electrode.Wherein, nickel-metal hydride battery is a kind of novel high-energy
Secondary cell, with energy density height, overcharge resistance performance energy is good, high current charge-discharge ability is strong, and use cost is low, and is easy close
Envelope, memory-less effect and the excellent performances such as Environmental compatibility is good.
During preparing nickel positive pole, need to the material mixings such as ball-shape nickel hydroxide and thickener be formed slurry and be applied
It is overlying on Foamed Nickel, drying, rolling, cut-parts, point welding electrode ear obtain positive plate.Wherein, thickener effect is raising slurry viscosity,
It avoids ball-shape nickel hydroxide from settling, guarantees the workability of slurry.
But existing nickel positive pole preparation method, when preparing nickel positive pole, slurry usually will appear obvious sedimentation,
The battery performance for influencing workability and being finally prepared.
Summary of the invention
When the technical problem to be solved by the present invention is to prepare nickel positive pole for preparation method in the prior art, slurry
The problem of material usually will appear obvious sedimentation, provide a kind of nickel positive pole preparation method.
It is as follows that the present invention solves technical solution used by above-mentioned technical problem:
A kind of nickel positive pole preparation method is provided, is included the following steps:
S1, nickel hydroxide is mixed with solvent, thickener and presoma, and stirred evenly, obtain anode sizing agent；The increasing
Thick dose is selected from one of carboxymethyl cellulose, hydroxypropyl methyl cellulose, polyvinyl alcohol or a variety of；The presoma is olefin(e) acid
Copolymer；
S2, anode sizing agent is coated on positive carrier, obtains the anode after drying, rolling, cut-parts.
Meanwhile the present invention also provides the nickel positive poles being prepared using the above method.
In addition, the present invention also provides above-mentioned nickel positive poles in supercapacitor, nickel-metal hydride battery, nickel-cadmium cell, nickel zinc
Application in battery or nickel iron cell.
In the preparation process of nickel positive pole slurry, even if addition thickener, obtained nickel positive pole slurry are still deposited
In largely settlement issues.By largely testing, inventors have found that preparing nickel positive pole material spherical hydroxide
During nickel, since nickel hydroxide crystal accumulation is not very fine and close, there are holes, and alkali (such as sodium hydroxide) is made to remain in spherical hydrogen
It inside nickel oxide, after washing, still has part alkali and stays in ball-shape nickel hydroxide, preparing nickel positive pole slurry
During material, when ball-shape nickel hydroxide and water, thickener mixing, the alkali remained in ball-shape nickel hydroxide can be dissolved out,
Hydroxide ion is formed, there is destruction to the strand of thickener, influence the thickening effect of thickener, slurry is made to sink
Drop keeps preparation process difficult.
In the present invention, when preparing nickel positive pole slurry, while above-mentioned thickener and above-mentioned presoma are added, a side
Face is reacted by above-mentioned specific presoma with the hydroxide ion of precipitation, is consumed the hydroxide ion in slurry, is avoided hydrogen-oxygen
Destruction of the radical ion to thickener；On the other hand, the above-mentioned specific presoma used in the present invention is reacted with hydroxide ion
The substance obtained afterwards can be used as thickener and play a role, and then guarantee that slurry will not settle, while can reduce the use of thickener
Amount, reduces cost.
Also, inventors have found that on the one hand can effectively ensure that slurry due to adding above-mentioned thickener and above-mentioned presoma simultaneously
Material does not settle, avoid due to forerunner's precursor reactant obtains caused by individually adding presoma amounts of thickener it is insufficient caused by starch
Material sedimentation；On the other hand, due to existing simultaneously presoma and thickener in slurry, presoma and thickener can be with the hydrogen of precipitation
The contact of oxygen radical ion, if only adding thickener as existing, due to the effect of hydroxide ion, thickener can be gradually by hydroxyl
Ion damaged causes slurry viscosity to reduce and settle；And if only add presoma, presoma can gradually with forerunner's precursor reactant
Thickener is obtained, slurry viscosity is gradually increased, subsequent construction performance and chemical property is caused to decline；And pass through in the present invention
Above-mentioned presoma and above-mentioned thickener are added simultaneously, while thickener is destroyed and be consumed by hydroxide ion, presoma
It can be reacted with hydroxide ion and re-form the substance with thickening power, to guarantee the viscosity stabilization of slurry, will not both gone out
It now settles, slurry viscosity will not be caused excessively high, ensure that the workability of slurry and the electrochemistry of nickel positive pole significantly
Energy.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain
The present invention is not intended to limit the present invention.
Nickel positive pole preparation method provided by the invention includes the following steps:
S1, nickel hydroxide is mixed with solvent, thickener and presoma, and stirred evenly, obtain anode sizing agent；The increasing
Thick dose is selected from one of carboxymethyl cellulose, hydroxypropyl methyl cellulose, polyvinyl alcohol or a variety of；The presoma is olefin(e) acid
Copolymer；
S2, anode sizing agent is coated on positive carrier, obtains the anode after drying, rolling, cut-parts.
Wherein, the nickel hydroxide specifically used in the above method leads to for nickel positive pole material commonly used in this field
It is often spherical shape, therefore also referred to as spherical nickel.The nickel hydroxide of above-mentioned spherical shape can be bought by market, can also be used and voluntarily be prepared.
Wherein, spherical nickel hydroxide the preparation method comprises the following steps: according to nickel ion and hydroxide ion ratio to be that 1:2 is carried out for nickel salt and alkali anti-
It answers, generates spherical nickel hydroxide.Wherein, nickel salt is nickel sulfate, nickel nitrate or nickel chloride, and alkali is sodium hydroxide or hydroxide
Potassium.
In the present invention, above-mentioned solvent is the usually used solvent in this field, for example, the solvent is water.In step S1,
When mixing, the additive amount of solvent can change in a big way, under preferable case, in the anode sizing agent of required formation, with described
On the basis of the content of nickel hydroxide, the content of the solvent is 10-30wt%.
According to the present invention, the thickener is selected from carboxymethyl cellulose (CMC), hydroxypropyl methyl cellulose (HPMC), gathers
One of vinyl alcohol (PVA) is a variety of.Above-mentioned various thickeners can be commercially available by conventional.
In the present invention, under preferable case, in the anode sizing agent of required formation, on the basis of the content of the nickel hydroxide,
The content of the thickener is 0.01-0.2wt%, more preferably 0.06-0.12wt%.
The presoma is olefin(e) acid copolymer.Specifically, the presoma is selected from polyacrylic acid, acrylic resin, propylene
One of acid esters-methacrylate copolymer is a variety of.Above-mentioned acrylate-methacrylate copolymer is in acid
Property, neutralization reaction can occur with hydroxide ion and generate the substance with thickening effect.For example, acrylate-metering system
Acid ester copolymer can be the acrylate-methacrylate copolymerization of the AT-70 model of Changzhou Jia Site Chemical Co., Ltd.
Made of cross-linked type macromolecule polymer.
Thickening effect cannot be generated since above-mentioned presoma is mixed with water, and in acidity, when above-mentioned presoma and spherical shape
It is spherical after ball-shape nickel hydroxide is mixed with water due to containing hydroxide ion in ball-shape nickel hydroxide after nickel hydroxide mixing
Hydroxide ion in nickel hydroxide can dissolve out in water, and neutralization reaction can occur with hydroxide ion for above-mentioned presoma,
Thickening material is generated, and the substance has the effect of thickening, to play the role of thickening.
In the present invention, the viscous of the slurry being prepared can preferably be controlled by being used in conjunction with by above-mentioned thickener and presoma
Degree.But inventors have found that thickener and presoma additive amount deficiency are unfavorable for the improvement to anti-settling performance, and additive amount
Chemical property will excessively be produced bigger effect.Particularly with presoma, when individually addition presoma, have to guarantee to realize
The anti-settling effect of effect, need to largely add, so as to sufficiently react with hydroxide ion.But a large amount of existing presomas
Larger negative effect will be caused to chemical property.The present invention is used in conjunction with by thickener and presoma, on the one hand can be most
The usage amount of the reduction presoma and thickener of limits, on the other hand effectively can avoid slurry from settling.
For above-mentioned presoma, to avoid influence of the presoma being excessively added to chemical property, specific additive amount
It need to be determined according to the hydroxide ion content in slurry.It according to the present invention, further include by 100g hydrogen before the step S1
Nickel oxide is immersed in 1L water, and the pH value for testing solution is x, then calculates the amount of required presoma according to the following formula
Y:
Y=n × m × 1014-x；
Wherein, m is the molecular weight of each unit containing carboxylic acid group in presoma；N is selected from 1-3.
It can determine the amount of the specific required presoma added under preferable case, through the above steps to guarantee optimal synthesis
Performance.
Meanwhile to improve industrial production efficiency, the property of raw material in conjunction with employed in actual production, for common original
Expect, under preferable case, on the basis of the content of the nickel hydroxide, the content of the presoma is 0.01-0.5wt%, more excellent
It is selected as 0.05-0.1wt%.
It is especially water in above-mentioned solvent, and its content is 10-30wt%, when amount of thickener is 0.01-0.2wt%,
The content of presoma is that 0.01-0.5wt% can realize better comprehensive performance.
In the case of, according to the invention it is preferred to, in the step S1, first nickel hydroxide is mixed with solvent, and stirs evenly
To no clustering phenomena, thickener and presoma are then added, and is evenly stirred until and can not see presoma white emulsion, slurry
Gloss, good fluidity.
In the present invention, after forming above-mentioned anode sizing agent, anode sizing agent is coated on positive carrier, drying, rolling, cut-parts
After obtain the anode.
Specifically, the above-mentioned method that anode sizing agent is coated on positive carrier, drying, rolling, cut-parts method be
It is existing, it is not particularly limited in the present invention.For example, in the step S2, the method for drying are as follows: done at 40 DEG C -270 DEG C
It is dry.
It wherein, is soft fluffy state due to being coated with after the positive carrier drying of anode sizing agent, the hole between particle is big, leads
It is electrically poor, it is compressed it by rolling, reduces the hole between particle, make anode that there is preferable electric conductivity.
For above-mentioned positive carrier, conventional material specifically can be used, such as it is Foamed Nickel, steel band that positive carrier, which can be used,
Or steel mesh.
Meanwhile the present invention also provides nickel positive poles prepared by the preparation method.When by the nickel power supply just
When pole is applied to the anode of battery, the internal resistance of battery is small, and electrical property is preferable.
The prepared nickel positive pole of the production method of above-mentioned nickel positive pole can be in supercapacitor, ni-mh electricity
Application in pond, nickel-cadmium cell, nickel-zinc cell or nickel iron cell can make above-mentioned supercapacitor, nickel-metal hydride battery, ni-Cd electricity
Pond, nickel-zinc cell or nickel iron cell all have preferable electrical property.
The present invention is further detailed by the following examples.
Embodiment 1
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and CMC are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, CMC is 100:0.01:0.01, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 2
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and CMC are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, CMC is 100:0.01:0.1, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 3
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and CMC are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, CMC is 100:0.01:0.2, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 4
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and CMC are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, CMC is 100:0.1:0.01, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 5
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and CMC are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, CMC is 100:0.1:0.1, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 6
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and CMC are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, CMC is 100:0.1:0.2, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 7
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and CMC are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, CMC is 100:0.5:0.01, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 8
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and CMC are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, CMC is 100:0.5:0.1, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 9
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and CMC are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, CMC is 100:0.5:0.2, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 10
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and HPMC are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, HPMC is 100:0.1:0.1, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 11
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid and PVA are added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly,
In, the mass ratio of ball-shape nickel hydroxide and polyacrylic acid, PVA is 100:0.1:0.1, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Embodiment 12
The present embodiment is for illustrating nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) AT-70 and CMC is added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly, wherein ball
The mass ratio of shape nickel hydroxide and AT-70, CMC are 100:0.1:0.1, obtain anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test electric current the following in 1C charge and discharge of the battery
Ring service life, test data are shown in Table 1.
Comparative example 1
This comparative example is used for comparative illustration nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) CMC is added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly, wherein spherical hydrogen-oxygen
The mass ratio for changing nickel and CMC is 100:0.3, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test internal resistance, electric current the putting in 5C of the battery
In the cycle life of 1C charge and discharge, test data is shown in Table 1 for level platform and electric current.
Comparative example 2
This comparative example is used for comparative illustration nickel positive pole preparation method disclosed by the invention.
(1) ball-shape nickel hydroxide and water are placed in a beaker for 100:20 according to mass ratio, mix, stirs evenly, obtain
The aqueous solution of ball-shape nickel hydroxide.
(2) polyacrylic acid is added in the aqueous solution of the ball-shape nickel hydroxide in step (1), stirs evenly, wherein is spherical
The mass ratio of nickel hydroxide and polyacrylic acid is 100:1.5, obtains anode sizing agent.
(3) anode sizing agent is coated on Foamed Nickel, through 40 DEG C of dryings, rolling obtains electrode slice.
By anode sizing agent obtained in step (2) store observe, record anode sizing agent start sedimentation time, sedimentation when
Between be shown in Table 1.The electrode slice that step (3) is obtained is as positive plate, clipped, spot welding nickel tab, with negative electrode tab, one roll set of diaphragm
Around being then successively fabricated to AAA700 battery through fluid injection, sealing and chemical conversion, test internal resistance, electric current the putting in 5C of the battery
In the cycle life of 1C charge and discharge, test data is shown in Table 1 for level platform and electric current.
Performance test
The test result that the performance test carried out in above-described embodiment 1- embodiment 12, comparative example 1 and comparative example 2 obtains is such as
Table 1.
Table 1
It can be seen that the increase of thickener and presoma content to avoiding the slurry sedimentation from having one from the test result of table 1
Fixed effect, but also result in chemical property and be decreased obviously.It is being not added with for example, the test result of comparative example 1 can be seen that
In the case where presoma, although thickener is excessively added can improve the settlement issues of slurry to a certain extent, lead to electrification
Performance is learned to be decreased obviously.
And when only adding polyacrylic acid, additive amount is larger, but slurry still obviously settles, and simultaneous electrochemical performance is also obvious
Decline.
The slurry that method provided by the invention is prepared has effect to slurry sedimentation is improved, especially works as thickener
Content is 0.06-0.12wt%, when presoma content is within the scope of 0.01-0.5, can effectively avoid slurry sedimentation, keeps simultaneously
Preferable chemical property.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of nickel positive pole preparation method, which comprises the steps of:
S1,100g nickel hydroxide is immersed in 1L solvent, is mixed and stirred for uniformly testing the pH value of solution to no clustering phenomena
For x, the amount y of required presoma is then calculated according to the following formula:
Y=n × m × 1014-x；
Wherein, the presoma is olefin(e) acid copolymer；M is the molecular weight of each unit containing carboxylic acid group in presoma；N choosing
From 1-3；
Thickener and presoma is added into the solution again, and is evenly stirred until and can not see presoma white emulsion, obtains
Anode sizing agent；The thickener is selected from one of carboxymethyl cellulose, hydroxypropyl methyl cellulose, polyvinyl alcohol or a variety of；
In the anode sizing agent, on the basis of the content of the nickel hydroxide, the content of the solvent is 10-30wt%, the thickening
The content of agent is 0.01-0.2wt%, and the content of the presoma is 0.01-0.5wt%；
S2, anode sizing agent is coated on positive carrier, obtains the anode after drying, rolling, cut-parts.
2. nickel positive pole preparation method according to claim 1, which is characterized in that the presoma is selected from polypropylene
One of acid, acrylic resin, acrylate-methacrylate copolymer are a variety of.
3. nickel positive pole preparation method according to claim 2, which is characterized in that the content of the presoma is
0.05-0.1wt%.
4. nickel positive pole preparation method according to claim 1 or 2, which is characterized in that in the step S2, drying
Method are as follows: dry at 40 DEG C -270 DEG C.
5. nickel positive pole preparation method according to claim 1 or 2, which is characterized in that the anode carrier is foaming
Nickel, steel band or steel mesh.
6. nickel positive pole preparation method according to claim 1 or 2, which is characterized in that the solvent is water.
7. a kind of nickel positive pole, which is characterized in that be prepared by the method as described in any one of claim 1-6
It arrives.
8. nickel positive pole as claimed in claim 7 is in supercapacitor, nickel-metal hydride battery, nickel-cadmium cell, nickel-zinc cell or nickel
Application in iron cell.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082302A (en) * | 2009-11-27 | 2011-06-01 | 比亚迪股份有限公司 | Nickel hydrogen secondary battery |
| CN103762341A (en) * | 2014-01-10 | 2014-04-30 | 深圳市豪鹏科技有限公司 | Electrode plate, production method of electrode plate and application of electrode plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082302A (en) * | 2009-11-27 | 2011-06-01 | 比亚迪股份有限公司 | Nickel hydrogen secondary battery |
| CN103762341A (en) * | 2014-01-10 | 2014-04-30 | 深圳市豪鹏科技有限公司 | Electrode plate, production method of electrode plate and application of electrode plate |
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