CN107146878A - A kind of nickel system battery pole piece, nickel system battery and preparation method thereof - Google Patents
A kind of nickel system battery pole piece, nickel system battery and preparation method thereof Download PDFInfo
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- CN107146878A CN107146878A CN201710353078.5A CN201710353078A CN107146878A CN 107146878 A CN107146878 A CN 107146878A CN 201710353078 A CN201710353078 A CN 201710353078A CN 107146878 A CN107146878 A CN 107146878A
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/26—Processes of manufacture
- H01M4/28—Precipitating active material on the carrier
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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
- H01M10/28—Construction or manufacture
- H01M10/286—Cells or batteries with wound or folded electrodes
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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
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/26—Processes of manufacture
- H01M4/30—Pressing
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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
- 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
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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
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Abstract
The invention discloses a kind of preparation method of nickel system battery, comprise the following steps：S1, prepares anode pole piece：Anode sizing agent is made in the positive active material and conductive agent, additive and binding agent that certain particle size is distributed；Anode sizing agent is coated uniformly on the positive electrode substrate surface that thickness is 10~30 μm, after drying, anode pole piece of the thickness between 0.05~0.15mm is made in roll-forming；S2, prepares cathode pole piece：Cathode size is made in the negative electrode active material and conductive agent, additive and binding agent that certain particle size is distributed；Cathode size is coated uniformly on the negative pole matrix surface that thickness is 5~20 μm, after drying, cathode pole piece of the thickness between 0.05~0.10mm is made in roll-forming；S3, anode pole piece, thickness are laminated in 0.04~0.08mm barrier film, cathode pole piece and are wound into battery core.Nickel system battery super-high rate discharging performance produced by the present invention is good, discharge power is high.
Description
【Technical field】
The present invention relates to nickel system battery, the preparation method of the nickel system battery of more particularly to a kind of ultra-high magnifications.
【Background technology】
In recent years, it is hybrid vehicle, electronic with the improvement of people's environmental awareness, the development of green novel energy source industry
The consuming devices such as instrument, electric bicycle, startup power supply are more and more, and the cooperating therewith battery types used are also rapid therewith
Increase.At present, battery is extensively and profoundly in the every field of people's Working Life, with the rapid expansion of Battery Market, people
Requirement to its performance also more and more higher.Currently there is the Battery Market of special heavy-current discharge requirement more and more, and it is current
Ni-MH battery prepared by technique can not carry out ultra-high magnifications electric discharge, and its discharge performance can not meet the requirement in market.
【The content of the invention】
The technical problems to be solved by the invention are：Above-mentioned the deficiencies in the prior art are made up, a kind of nickel system battery pole is proposed
Piece, nickel system battery and preparation method thereof, obtained nickel system battery super-high rate discharging performance is good, discharge power is high.
The technical problem of the present invention is solved by following technical scheme：
A kind of preparation method of nickel system battery, comprises the following steps：S1, prepares anode pole piece：By positive active material with
Anode sizing agent is made in conductive agent, additive and binding agent, wherein, the size distribution of the positive active material is：- 500 mesh grain
Mass percent >=99%, D50 particle diameter of level is 8.0 ± 2.0 μm；It is 10~30 that the anode sizing agent is coated uniformly on into thickness
μm positive electrode substrate surface, after drying, anode pole piece of the thickness between 0.05~0.15mm is made in roll-forming；S2, is prepared
Cathode pole piece：Cathode size is made in negative electrode active material and conductive agent, additive and binding agent, wherein, the negative electrode active
The size distribution of material is：Mass percent >=100% of -400 mesh grades, mass percent >=90% of -500 mesh grades, -
Mass percent >=50%, D50 particle diameter of 600 mesh grades is 20.0 ± 5.0 μm；The cathode size is coated uniformly on thickness
For 5~20 μm of negative pole matrix surface, after drying, cathode pole piece of the thickness between 0.05~0.10mm is made in roll-forming；
S3, the anode pole piece, thickness are laminated in 0.04-0.08mm barrier film, the cathode pole piece and are wound into battery core.
Nickel system battery made from a kind of preparation method of basis nickel system battery as described above.
A kind of preparation method of nickel system battery pole piece, positive active material is made with conductive agent, additive and binding agent
Anode sizing agent, wherein, the size distribution of the positive active material is：Mass percent >=99%, D50 grain of -500 mesh grades
Footpath is 8.0 ± 2.0 μm；The anode sizing agent is coated uniformly on the positive electrode substrate surface that thickness is 10~30 μm, after drying, roller
It is molded, anode pole piece of the thickness between 0.05~0.15mm is made；Or, by negative electrode active material and conductive agent, addition
Cathode size is made with binding agent in agent, wherein, the size distribution of the negative electrode active material is：The quality percentage of -400 mesh grades
Than mass percent >=90% of >=100%, -500 mesh grade, mass percent >=50%, D50 particle diameter of -600 mesh grades is
20.0±5.0μm；The cathode size is coated uniformly on the negative pole matrix surface that thickness is 5~20 μm, after drying, is rolled into
Type, is made cathode pole piece of the thickness between 0.05~0.10mm.
A kind of nickel system battery pole piece according to made from preparation method as described above.
The beneficial effect that the present invention is compared with the prior art is：
The preparation method of the nickel system battery of the present invention, using the appropriate active material of particle size range and the base of thinner thickness
Body, active material be made the form of slurry coating after pole piece is made after roll-in again thickness (0.05~0.15mm, 0.05~
0.10mm) relatively thin pole piece.Battery is made in the barrier film of thinner thickness together with the pole piece of the thinner thickness, because pole piece compared with
Thin, then the active material in conducting base unit area is less, and electric conductivity is preferable；Coordinate barrier film relatively thin, good air permeability, favorably
The H produced in charge and discharge process2、O2Pass through, the internal pressure of battery during reduction high current charge-discharge, so that comprehensive improve
High-rate discharge ability.Simultaneously as the granularity of active material is thinner on pole piece, therefore, although pole piece is thinning, but not occur
The defect of barrier film is pierced through, is not in the thinning rear fraction defective of pole piece and the problem of short-circuit hidden danger in conventional art.The present invention is provided
It is a kind of can the output of more high magnification technique, solve for a long time nickel series battery can not ultra-high magnifications discharge defect, can meet
The requirement in market, improves the occupation rate of market of Ni-MH battery.At present, the Ni-MH battery city of heavy-current discharge is met in the prior art
Field or blank out, the present invention can fill up this vacancy.
【Brief description of the drawings】
Fig. 1 is that the 10C electric discharges of battery made from the embodiment of the specific embodiment of the invention and the obtained battery of comparative example are put down
Platform test comparison figure；
Fig. 2 is the discharge curve of the 50C discharge platforms of battery made from the embodiment of the specific embodiment of the invention.
【Embodiment】
With reference to embodiment and compare accompanying drawing the present invention is described in further details.
Idea of the invention is that：At present, the nickel system battery (Ni-MH battery, nickel-cadmium cell, nickel-zinc cell) of big multiplying power discharging
Commercially belong to blank.With market development, the nickel system battery that big multiplying power discharging is directed in recent years just starts starting.By
In the limitation of the conventional fabrication process of the nickel system battery in industry, the pole piece made is general thicker, temporarily without extremely thin pole
Piece.In currently existing scheme, anode pole piece thickness takes the application of relatively thin pole piece in 0.5~1.0mm scope in the range of this
Fewer, because the limitation of the thickness of conducting base, uniformity when pole piece is thin is poor, the qualification rate of production is relatively low；Existing
In some schemes, negative plate thickness 0.3~0.5mm scope, should in the range of take the application of relatively thin pole piece also fewer, pole
Uniformity when piece is thin is poor, and the pole piece of making is also easy to produce Lou powder and needs the granularity of active material particle larger, but big particle diameter
Particle can cause percentage of batteries punctured during discharge and recharge barrier film so that trigger battery occur low pressure, short circuit the problem of.
Improved in the present invention by technologic, the granularity adjustment of active material in compounding ingredient, the pole piece for being made relatively thin improves battery
Discharge-rate, while solving the shortcoming and hidden danger on common process.
Present embodiment provides a kind of preparation method of nickel system battery, comprises the following steps：
S1, prepares anode pole piece：Anode sizing agent is made in positive active material and conductive agent, additive and binding agent, its
In, the size distribution of the positive active material is：Mass percent >=99%, D50 particle diameter of -500 mesh grades be 8.0 ±
2.0μm；The anode sizing agent is coated uniformly on the positive electrode substrate surface that thickness is 10~30 μm, after drying, roll-forming, system
Obtain anode pole piece of the thickness between 0.05~0.15mm.
Wherein, the implication of -500 mesh grade percentages be can be by the mass ratio of the particle in 500 mesh sieve holes in sample.It is as follows
The implication of each grade percentage is similar with the implication, subsequently repeats no more.
In the step, the size distribution of positive active material is：Mass percent >=99%, D50 grain of -500 mesh grades
Footpath is 8.0 ± 2.0 μm, and on the one hand the particle size range is uniformly coated suitable for anode sizing agent is made；On the other hand, granularity is relative
In prior art scheme be thinner category so that it is coated be rolled into after pole piece can avoid active material particle pierce through barrier film
Cause the hidden danger of micro-short circuit.Above-mentioned grain class distribution percentage and 8.0 ± 2.0 μm of scope are true after continuous testing and debugging
The specification limit of fixed most suitable coating, too small to influence paintability, too conference pierces through barrier film, causes the hidden danger of micro-short circuit.
Slurrying, coating and rolling process are used in the preparation process of pole piece, is made up so as to realize of the matrix of thinner thickness
The pole piece that thinner thickness and active material are evenly distributed.Preferably, during coating, it can be coated using printing coating processes by printing
Machine realizes that surface is coated.During work, by computer control printing coating machine, so that the coating machine can be adopted according to technological requirement
With the length in the material area of the printing model of similar inkjet printer control coating, width, thickness, surface density, the gap of empty foil,
Pole piece drying rate and material retractable speed, possess automatic deviation rectifying function while having.The battery pole sheet stock area size essence being coated with out
Standard, uniform coating thickness is fine and close, and the coating more general coating machine of drying rate is higher by more than one times.
In above-mentioned steps, exemplified by preparing Ni-MH battery, positive active material preferably can be hickelous nydroxide, and binding agent can
For one or more mixing in sodium carboxymethylcellulose (CMC), polytetrafluoroethylene (PTFE) (PTFE), positive electrode substrate is nickel foil.When
When preparing other nickel system batteries, the material of positive active material, binding agent and conducting base etc. can be accordingly adjusted.
In the step, the thinner positive active material particle of the matrix and granularity of thinner thickness is employed, by pole after coating
Piece obtains the anode pole piece of thinner thickness by roll pressing.
S2, prepares cathode pole piece：Cathode size is made in negative electrode active material and conductive agent, additive and binding agent, its
In, the size distribution of the negative electrode active material is：Mass percent >=100% of -400 mesh grades, the matter of -500 mesh grades
Percentage >=90% is measured, mass percent >=50%, D50 particle diameter of -600 mesh grades is 20.0 ± 5.0 μm；The negative pole is starched
Material is coated uniformly on the negative pole matrix surface that thickness is 5~20 μm, after drying, roll-forming, and thickness is made in 0.05~0.1mm
Between cathode pole piece.
In the step, the size distribution of the negative electrode active material of selection exists：- mass percent of 400 mesh grades >=
100%, mass percent >=90% of -500 mesh grades, mass percent >=50%, D50 particle diameter of -600 mesh grades is 20.0
±5.0μm.Similarly, on the one hand the particle size range is uniformly coated suitable for cathode size is made；On the other hand, granularity is relative
In prior art scheme be thinner category so that it is coated be rolled into after pole piece can avoid active material particle pierce through barrier film
Cause the hidden danger of micro-short circuit.Similarly, above-mentioned grain class distribution percentage and 20.0 ± 5.0 μm of scope are also by constantly test
The specification limit of the most suitable coating determined after adjustment.
Preferably, during coating, it can be realized surface coating using printing coating processes by printing coating machine and coated
Drying course afterwards.Exemplified by preparing Ni-MH battery, negative electrode active material is preferably hydrogen storing alloy powder.Binding agent can for CMC,
One or more mixing in PAAS, SBR, HPMC.Negative pole matrix is copper foil.The electric conductivity of copper foil is outstanding, the battery being made
Internal resistance is small, and in ductility and also ideal in price, is preferred negative pole matrix material.It is electric when preparing other nickel systems
Chi Shi, can accordingly adjust the material of negative electrode active material, binding agent and conducting base etc..
In the step, the thinner anode active material particles of the matrix and granularity of thinner thickness are employed, by pole after coating
Piece obtains the cathode pole piece of thinner thickness by roll pressing.
S3, the anode pole piece, thickness are laminated in 0.04~0.08mm barrier film, the cathode pole piece and are wound into electricity
Core.The material of barrier film may be selected from：Nylon fiber barrier film (PA), poly- fibrids barrier film (PP), polyvinyl (Pioloform, polyvinyl acetal,
PVA) and composite diaphragm (PP/PE) etc., wherein, preferably PP barrier films.Through multiple authentication, PP barrier films and above-mentioned relatively thin both positive and negative polarity
It is wound into after battery, the combination property such as chemical stability, mechanical strength and alkali absorption of barrier film is optimal.
Nickel system battery is prepared into by battery core obtained above encapsulation.In obtained battery, pole piece, the thinner thickness of barrier film,
And the granularity of active material particle is thinner, from prepared by battery conductive preferably, with high-rate discharge ability.
It is as follows, the discharge performance of battery made from present embodiment is verified by specific embodiment and comparative example.
Embodiment：
The preparation of anode pole piece：
1) it is with slurry：Cobalt ball-type hickelous nydroxide, conductive agent, additive and binding agent (CMC, PTFE) will be covered and be fabricated to slurry
Material；
Wherein, the spherical hickelous nydroxide size distribution of cobalt is covered as follows：
| - 500 mesh grades | Percentage (wt.%) >=99% |
| (D50 μm) particle diameter | 8.0±2.0 |
2) it is coated with：Matrix (thickness is done using nickel foil：10-30 μm), anode sizing agent surface is coated in nickel foil surface；
3) dry：It will coat drying；
4) roll-in：Roll-forming, the molding thickness of anode pole piece is between 0.05~0.15mm.
5) cut；
6) post-processing.
The preparation of cathode pole piece：
1) it is with slurry：By hydrogen storing alloy powder, conductive agent, additive and binding agent (one kind in CMC, PAAS, SBR, HPMC or
A variety of mixing) it is fabricated to slurry；
The size distribution of wherein hydrogen storing alloy powder is as follows：
| - 400 mesh grades | Percentage (wt.%) >=100% |
| - 500 mesh grades | Percentage (wt.%) >=90% |
| - 600 mesh grades | Percentage (wt.%) >=50% |
| D50 particle diameters (μm) | 20.0±5.0 |
2) it is coated with：Matrix is done using copper foil (5~20 μm), cathode size surface is coated in copper foil surface；
3) dry：Slurry is drying；
4) roll-in：Roll-forming, the molding thickness of cathode pole piece is general between 0.05~0.10mm；
5) cut；
6) post-processing.
Barrier film：The non-woven fabrics of PP materials thick 0.04~0.08mm.
Above-mentioned anode pole piece, barrier film, cathode pole piece stacking are wound into battery core, battery is made in encapsulation.
Comparative example：
The preparation of anode pole piece：
1) it is with slurry：Cover cobalt ball-type hickelous nydroxide, conductive agent, additive and binding agent (CMC, PTFE) and be fabricated to slurry；
Wherein, the spherical hickelous nydroxide size distribution of cobalt is covered as follows：
| - 300 mesh grades | Percentage (wt.%) >=99% |
| (D50 μm) particle diameter | 13.0±3.0 |
2) precompressed：Matrix (1.0~2.0mm of thickness) is done using Foamed Nickel, precompressed is carried out to Foamed Nickel；
3) slurry：Foamed Nickel is passed through into the slurry storage tank equipped with anode sizing agent, after starching mould；
The precompressed thickness of Foamed Nickel, the gap of starching mould are adjusted according to the molding thickness of pole piece；
4) dry：Slurry is drying；
5) roll-in：Roll-forming, the molding thickness of anode pole piece is between 0.50~1.0mm.
6) cut, post-processing.
The preparation of cathode pole piece：
1) it is with slurry：By hydrogen storing alloy powder, conductive agent, additive and binding agent (one kind in CMC, PAAS, SBR, HPMC or
A variety of mixing) it is fabricated to slurry；
The size distribution of wherein hydrogen storing alloy powder is as follows：
| - 100 mesh grades | Percentage (wt.%) >=100% |
| - 200 mesh grades | Percentage (wt.%) >=90% |
| - 300 mesh grades | Percentage (wt.%) >=60% |
| - 400 mesh grades | Percentage (wt.%) >=40% |
| D50 particle diameters (μm) | 40.0±5.0 |
2) slurry：Matrix is done using nickel plating Punching steel strip, the stock chest equipped with cathode size is passed through after starching mould；
The gap of starching mould will be adjusted according to the molding thickness of pole piece；
3) dry：Slurry is drying；
4) roll-in：Roll-forming, the molding thickness of cathode pole piece is between 0.30~0.50mm；
5) cut, post-processing.
Barrier film：PP non-woven fabrics thick 0.10~0.25mm.
Above-mentioned anode pole piece, barrier film, cathode pole piece stacking are wound into battery core, battery is made in encapsulation.
Performance comparison：
The 1500mAh for taking the 1500mAh that comparative example makes to be made with embodiment does the contrast of 10C discharge platforms, and 10C platforms are
Refer to current discharge of the battery with 10 times of capacity, belong to big multiplying power discharging.Test result is as shown in figure 1, the curve shown in A is corresponding
The discharge curve of the battery of embodiment, the discharge curve of the battery of the curve correspondence comparative example shown in B.Data display in figure, together
Battery etc. model uses identical 10C current discharges, and same time, the voltage meadow of embodiment is higher, represents embodiment
Battery discharge power it is higher so that the present invention have ultra-high magnifications.
The 1500mAh for taking the 1500mAh that comparative example makes to be made with embodiment does the contrast of 50C discharge platforms.Comparative example
Ni-MH battery can not carry out 50A discharge platform tests, and the 50A discharge platform curves of the battery of embodiment are as shown in Figure 2.From the number
According to understanding, the battery of comparative example can not meet 50A heavy-current discharge, it is impossible to carry out ultra-high magnifications electric discharge, and the electricity of embodiment
What pond can stablize realizes that 50A discharges, and discharge performance is good, discharge power is high.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
Some replacements or substantially modification are made on the premise of not departing from present inventive concept, and performance or purposes are identical, should all be considered as
Belong to protection scope of the present invention.
Claims (10)
1. a kind of preparation method of nickel system battery, it is characterised in that：Comprise the following steps：S1, prepares anode pole piece：Positive pole is lived
Property material and conductive agent, additive and binding agent anode sizing agent is made, wherein, the size distribution of the positive active material is：-
Mass percent >=99%, D50 particle diameter of 500 mesh grades is 8.0 ± 2.0 μm；The anode sizing agent is coated uniformly on thickness
For 10~30 μm of positive electrode substrate surface, after drying, positive pole pole of the thickness between 0.05~0.15mm is made in roll-forming
Piece；S2, prepares cathode pole piece：Cathode size is made in negative electrode active material and conductive agent, additive and binding agent, wherein, institute
The size distribution for stating negative electrode active material is：Mass percent >=100% of -400 mesh grades, the quality percentage of -500 mesh grades
Mass percent >=50%, D50 particle diameter than >=90%, -600 mesh grade is 20.0 ± 5.0 μm；The cathode size is uniform
The negative pole matrix surface that thickness is 5~20 μm is coated in, after drying, thickness is made between 0.05~0.10mm in roll-forming
Cathode pole piece；S3, the anode pole piece, thickness are laminated and are wound into 0.04~0.08mm barrier film, the cathode pole piece
Battery core.
2. the preparation method of nickel system according to claim 1 battery, it is characterised in that：In step S1 and/or step S2, lead to
Cross printing coating machine and realize the matrix drying course after the coating and coating of slurry.
3. the preparation method of nickel system according to claim 1 battery, it is characterised in that：In step S1, the positive-active
Material is hickelous nydroxide, it is preferable that the hickelous nydroxide is to cover cobalt spherical hickelous nydroxide；In step S2, the negative pole
Active material is hydrogen storing alloy powder.
4. the preparation method of nickel system according to claim 1 battery, it is characterised in that：In step S1, the binding agent is
One or more mixing in CMC, PTFE；The positive electrode substrate is nickel foil.
5. the preparation method of nickel system according to claim 1 battery, it is characterised in that：In step S2, the binding agent is
One or more mixing in CMC, PAAS, SBR, HPMC；The negative pole matrix is copper foil.
6. the preparation method of nickel system according to claim 1 battery, it is characterised in that：In step S3, the barrier film is PP
The barrier film of material.
7. the preparation method of nickel system according to claim 1 battery, it is characterised in that：Nickel system battery is ni-mh electricity
Pond.
8. nickel system battery made from a kind of preparation method of nickel system according to claim 1 battery.
9. a kind of preparation method of nickel system battery pole piece, it is characterised in that：By positive active material and conductive agent, additive with gluing
Anode sizing agent is made in knot agent, wherein, the size distribution of the positive active material is：- mass percent of 500 mesh grades >=
99%, D50 particle diameter are 8.0 ± 2.0 μm；The anode sizing agent is coated uniformly on the positive electrode substrate table that thickness is 10~30 μm
Face, after drying, anode pole piece of the thickness between 0.05~0.15mm is made in roll-forming；Or, by negative electrode active material with
Cathode size is made in conductive agent, additive and binding agent, wherein, the size distribution of the negative electrode active material is：- 400 mesh grain
Mass percent >=100% of level, mass percent >=90% of -500 mesh grades, the mass percents of -600 mesh grades >=
50%, D50 particle diameter are 20.0 ± 5.0 μm；The cathode size is coated uniformly on the negative pole matrix table that thickness is 5~20 μm
Face, after drying, cathode pole piece of the thickness between 0.05~0.10mm is made in roll-forming.
10. nickel system battery pole piece made from a kind of preparation method according to claim 9.
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| CN201710353078.5A CN107146878B (en) | 2017-05-18 | 2017-05-18 | Nickel battery pole piece, nickel battery and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710353078.5A CN107146878B (en) | 2017-05-18 | 2017-05-18 | Nickel battery pole piece, nickel battery and preparation method thereof |
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| CN107146878B CN107146878B (en) | 2020-01-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860512A (en) * | 2019-02-20 | 2019-06-07 | 湖南科霸汽车动力电池有限责任公司 | Technique is closed in the refining of anode of nickel-metal hydride battery slurry |
| CN112368861A (en) * | 2018-06-25 | 2021-02-12 | 凸版印刷株式会社 | Negative electrode composition for alkaline secondary battery and negative electrode for alkaline secondary battery |
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| CN112368861A (en) * | 2018-06-25 | 2021-02-12 | 凸版印刷株式会社 | Negative electrode composition for alkaline secondary battery and negative electrode for alkaline secondary battery |
| CN112368861B (en) * | 2018-06-25 | 2024-09-20 | 凸版印刷株式会社 | Negative electrode composition for alkaline secondary battery and negative electrode for alkaline secondary battery |
| CN109860512A (en) * | 2019-02-20 | 2019-06-07 | 湖南科霸汽车动力电池有限责任公司 | Technique is closed in the refining of anode of nickel-metal hydride battery slurry |
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| CN107146878B (en) | 2020-01-14 |
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