CN103531744A - Battery plate and electrode manufacturing method - Google Patents

Battery plate and electrode manufacturing method Download PDF

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Publication number
CN103531744A
CN103531744A CN201210231601.4A CN201210231601A CN103531744A CN 103531744 A CN103531744 A CN 103531744A CN 201210231601 A CN201210231601 A CN 201210231601A CN 103531744 A CN103531744 A CN 103531744A
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orders
base material
manufacture method
slurry
battery
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陈璞
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Positec Power Tools Suzhou Co Ltd
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Positec Power Tools Suzhou 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
    • 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
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses a method for manufacturing a battery plate. The battery comprises electrolyte which takes water or an alcoholic solution as a solvent. The method for manufacturing the battery plate comprises the following steps: mixing water, a conductive agent, an adhesive and an active material in which an embedded ion can be separated according to a preset weight ratio so as to form slurry; immersing a current collector base material into the slurry, so that the slurry is adhered to the current collector base material; drying the current collector base material adhered with the slurry; rolling according to a preset rolling gap; and cutting according to a set size. The provided method for manufacturing the battery plate is suitable for industrial production and has high production efficiency and low production cost. In addition, the invention also provides a method for manufacturing a battery electrode.

Description

The manufacture method of battery pole plates and electrode
Technical field
The invention belongs to electrochemical energy storage field, be specifically related to a kind of manufacture method of battery pole plates.
The invention still further relates to a kind of manufacture method of battery electrode.
Background technology
In recent years, along with scientific and technological development, more and more outstanding to the demand of the especially renewable green energy resource of the energy, battery is just being brought into play irreplaceable effect as storage and the conversion equipment of energy.
Adopting the aqueous solution as the battery of electrolyte, have preferably chemical property, and have larger battery capacity, is the ideal chose of energy storage.But, adopt at present the aqueous solution also to only limit to make in laboratory as the battery of electrolyte, cannot carry out large-scale industrial production.
Therefore, prior art is necessary further raising in fact.
Summary of the invention
The present invention aims to provide a kind of manufacture method of being convenient to the battery pole plates of suitability for industrialized production.
The invention provides a kind of manufacture method of battery pole plates, described battery comprises take the electrolyte that water or alcoholic solution be solvent, and the manufacture method of described battery pole plates comprises the following steps: the active material of water, conductive agent, binding agent and can deviate from-embedded ion is mixed to form to slurry according to predetermined weight ratio; Collector base material is immersed in slurry, slurry is sticked on collector base material; To adhering to the collector base material of slurry, dry; According to being scheduled to roll gap, roll; According to preliminary dimension, cut out.
Preferably, to account for the part by weight scope of described slurry be 10-50% to described water.
Preferably, to account for the part by weight scope of described slurry be 30-85% to described active material.
Preferably, to account for the part by weight scope of described slurry be 1-20% to described conductive agent.
Preferably, to account for the part by weight scope of described slurry be 1-20% to described binding agent.
Preferably, described collector base material is selected from a kind of in carbon-based material, metal or alloy, wherein said carbon-based material is selected from a kind of in vitreous carbon, graphite foil, foamy carbon, carbon felt, carbon fiber, wherein said metal is selected from Al, Fe, Cu, Pb, Ti, Cr, Mo, Co, Ag or a kind of through in the above-mentioned metal of Passivation Treatment, and wherein said alloy is selected from stainless steel, Al alloy, Ni alloy, Ti alloy, Cu alloy, Co alloy, Ti-Pt alloy, Pt-Rh alloy or a kind of through in the above-mentioned alloy of Passivation Treatment.
Preferably, described collector substrate surface has activated carbon coating.
Preferably, described collector base material is stainless steel foil or stainless (steel) wire, and the specification of described stainless (steel) wire is selected from 50 orders, 60 orders, 70 orders, 80 orders, 90 orders, 100 orders, 110 orders, 120 orders, 150 orders, 160 orders, 180 orders, 200 orders, 250 orders, 270 orders or 300 orders.
Preferably, described collector base material is stainless steel foil or stainless (steel) wire through Passivation Treatment.
Preferably, described collector base material thickness scope is 5-200 μ m.
Preferably, in the step of drying, bake out temperature scope is 50-150 ℃.
Preferably, in the process rolling, rolling interstice coverage is 0.2-3.0mm.
The present invention also provides a kind of manufacture method of battery electrode, and described battery comprises take the electrolyte that water or alcoholic solution be solvent, and the manufacture method of battery electrode comprises the pole plate soldering polar ear that the manufacture method of above-mentioned battery pole plates is made.
The manufacture method of battery pole plates provided by the invention and battery electrode, is applicable to industrial production, has very high production efficiency, has lower production cost simultaneously.
Accompanying drawing explanation
The process schematic diagram of the battery pole plates manufacture method that Fig. 1 provides for embodiment of the present invention.
Embodiment
The invention provides a kind of manufacture method of battery pole plates, this manufacture method can be made anode plate and the negative plates of water system ion battery, or makes the anode plate of water system hybrid ionic battery.
Water system ion battery, comprises positive pole, negative pole, is arranged at electrolyte and barrier film between positive pole and negative pole.The solvent of electrolyte is water or alcoholic solution, and alcoholic solution includes but are not limited to ethanol or methyl alcohol.In electrolyte, be included in positive pole, negative pole can the reversible ion of deviating from-embedding.Battery charging principle is: during charging, ion is deviate from from positive electrode active materials, via electrolyte, is embedded in negative active core-shell material; Battery discharge principle is the inverse process of charging.
Water system hybrid ionic battery comprises positive pole, negative pole, is arranged at electrolyte and barrier film between positive pole and negative pole.The electrolyte of water system hybrid ionic battery comprises the solvent that at least one can dissolve electrolyte and make electrolyte ionization, electrolyte can ionize out at least one charge and discharge process and reduce at negative pole-deposit and be oxidized-and the active ion that dissolves.Solvent comprises at least one in the aqueous solution or alcoholic solution, and alcoholic solution includes but are not limited to ethanol or methyl alcohol.The charge-discharge principle of water system hybrid ionic battery is: during charging, in positive electrode active materials, deviates from the reversible ion of deviating from-embedding, follows the interior variable valency metal of positive electrode active materials oxidized simultaneously, and ejected electron; Electronics arrives battery cathode via external circuit, and the active ion in while electrolyte obtains electronics at negative pole and is reduced, and is deposited on negative pole.Discharge process is the inverse process of charging.
Refer to Fig. 1, the manufacture method of this battery pole plates comprises the following steps.
Steps A: the active material of water, conductive agent, binding agent and can deviate from-embedded ion is mixed to form to slurry 10 according to predetermined weight ratio.
Corresponding to anode plate and the negative plates of making water system ion battery, and the anode plate of water system hybrid ionic battery, the predetermined ratio of active material weight in slurry of water, conductive agent, binding agent and can deviate from-embedded ion is as following table one.
Table one
Conductive agent comprises at least one being selected from conducting polymer, carbon nano-tube, activated carbon, Graphene, carbon black, carbon fiber.Carbon black includes but are not limited to acetylene black, section's qin carbon black (Ketjen black, KB) and super-p carbon black.Conductive agent is section's qin carbon black in the present embodiment.
Binding agent is mainly macromolecular compound, and its enhanced activity material contacts with the electronics between collector with conductive agent and active material, better the performance of stabilized electrodes.Binding agent is selected from least one in polytetrafluoroethylene (PTFE), Kynoar (PVDF), sodium carboxymethylcellulose (CMC), sodium carboxymethylcellulose derivative (CMC derivation), butadiene-styrene rubber (SBR), butadiene-styrene rubber derivative (SBR derivation).Butadiene-styrene rubber derivative has hydrophilic butadiene-styrene rubber (PSBR100) as what obtain by chemical modification.In the present embodiment, binding agent comprises Kynoar (PVDF).
The active material of can deviate from-embedded ion participates in electrochemical reaction, and can be reversible deviates from-embedded ion or functional group.
Corresponding to the anode plate of manufacturing water system ion battery, the active material of can deviate from-embedded ion is positive electrode active materials.
Positive electrode active materials can be to meet general formula Li 1+xmn ym zo kcan the reversible compound of deviating from-embed the spinel structure of lithium ion, wherein ,-1≤x≤0.5,1≤y≤2.5,0≤z≤0.5,3≤k≤6, M is selected from least one in Na, Li, Co, Mg, Ti, Cr, V, Zn, Zr, Si, Al.Be exemplified as, positive electrode active materials contains LiMn 2o 4, further, positive electrode active materials contains the LiMn through overdoping or coated modification 2o 4.
Positive electrode active materials can be to meet general formula Li<sub TranNum="97">1+x</sub>m<sub TranNum="98">y</sub>m '<sub TranNum="99">z</sub>m "<sub TranNum="100">c</sub>o<sub TranNum="101">2+n</sub>can the reversible compound of deviating from-embed the layer structure of lithium ion, wherein ,-1<x≤0.5,0≤y≤1,0≤z≤1,0≤c≤1 ,-0.2≤n≤0.2, M, M ', M " be selected from respectively Ni, Mn, Co, Mg, Ti, Cr, V, Zn, Zr, Si or Al at least one.Be exemplified as, positive electrode active materials contains LiCoO<sub TranNum="102">2</sub>.
Positive electrode active materials can be to meet general formula Li<sub TranNum="104">x</sub>m<sub TranNum="105">1-y</sub>m '<sub TranNum="106">y</sub>(XO<sub TranNum="107">4</sub>)<sub TranNum="108">n</sub>can the reversible compound of deviating from-embed the olivine structural of lithium ion, wherein, 0<x≤2,0≤y≤0.6,1≤n≤1.5, M is selected from Fe, Mn, V or Co, M ' be selected from Mg, Ti, Cr, V or Al at least one, X is selected from least one in S, P or Si.Be exemplified as, positive electrode active materials contains LiFePO<sub TranNum="109">4</sub>.
Positive electrode active materials can be through overdoping, the modification such as coated.Doping, it is complicated that the means such as coated modification cause the chemical general formula of material to express, as LiMn 2o 4can not represent the general formula of now widely used " LiMn2O4 ", and should be with general formula Li 1+xmn ym zo kbe as the criterion, comprise widely the LiMn through various modifications 2o 4positive electrode active materials.Same, LiFePO 4and LiCoO 2also should be interpreted as widely to comprise through various doping, the modification such as coated, general formula meets respectively Li xm 1-ym ' y(XO 4) nand Li 1+xm ym ' zm " co 2+npositive electrode active materials.
Positive electrode active materials is lithium ion while deviating from-embedding compound, can select as LiMn<sub TranNum="132">2</sub>o<sub TranNum="133">4</sub>, LiFePO<sub TranNum="134">4</sub>, LiCoO<sub TranNum="135">2</sub>, LiM<sub TranNum="136">x</sub>pO<sub TranNum="137">4</sub>, LiM<sub TranNum="138">x</sub>siO<sub TranNum="139">y</sub>compounds such as (wherein M are a kind of variable valency metal).In addition, positive electrode active materials can also be the compound N aVPO that can deviate from-embed sodium ion<sub TranNum="140">4</sub>f, can deviate from-embed the compound Mg M of magnesium ion<sub TranNum="141">x</sub>o<sub TranNum="142">y</sub>(wherein M is a kind of metal, 0.5<x<3,2<y<6) and there is similar functions.
Corresponding to the negative plates of manufacturing water system ion battery, the active material of can deviate from-embedded ion is negative active core-shell material.
Negative active core-shell material participates in electrochemical reaction, and it includes but are not limited to Mn oxide, barium oxide and phosphoric acid salt compound.Mn oxide is mainly the compound that a class contains Li-Mn-O, as Li 0.36mn 2o 4, Li 2mn 4o 9, Li 4mn 5o 12the compound of the defective spinel structure of tool, its unique three-dimensional structure is conducive to the embedding of lithium ion and deviates from.Barium oxide includes but are not limited to V 2o 5, LiV 3o 8and through modifying the V of (carbon is coated) 2o 5, LiV 3o 8.Phosphoric acid salt compound includes but are not limited to TiP 2o 7, LiTi 2(PO 4) 3.
Corresponding to the anode plate of manufacturing water system hybrid ionic battery, the active material of can deviate from-embedded ion is positive electrode active materials.The selection of positive electrode active materials is identical with water system ion battery.
In the present embodiment, take that to make the positive plate that water system mixes lithium ion battery be example, the active material of can deviate from-embedded ion is LiMn 2o 4.Jiang Shui, section's qin carbon black, Kynoar and LiMn 2o 4according to predetermined weight ratio, mix, repeatedly stir and form slurry 10.
Step B: collector base material 12 immerses in slurry 10, and slurry 10 is sticked on collector base material 12.
Collector base material 12 is used to form collector, and collector is mainly as conduction and collects the carrier of electronics in battery, and the material of collector comprises a kind of in carbon-based material, metal or alloy.
Carbon-based material is selected from a kind of in vitreous carbon, graphite foil, foamy carbon, carbon felt, carbon fiber.Preferably, collector is graphite foil, and as the paper tinsel of business-like graphite compacting, wherein the shared part by weight scope of graphite is 90-100%.Metal is wire netting or metal forming, and metal comprises Al, Fe, Cu, Pb, Ti, Cr, Mo, Co, Ag or a kind of through in the above-mentioned metal of Passivation Treatment.Preferably, collector is selected from the aluminium foil of Passivation Treatment.The main purpose of metal being carried out to Passivation Treatment is to make metallic surface form one deck passivating film, thereby in battery charge and discharge process, can play stable collection and the effect of conduction electron, and can not participate in electrode reaction, guarantees battery performance.Alloy comprises stainless steel, Al alloy, Ni alloy, Ti alloy, Cu alloy, Co alloy, Ti-Pt alloy, Pt-Rh alloy or a kind of through in the above-mentioned metal of Passivation Treatment.Stainless steel comprises stainless (steel) wire, stainless steel foil.Stainless model includes but are not limited to a kind of in stainless steel 304 or Stainless steel 316 or Stainless steel 316 L.Further, also can activated carbon coating be set at collection liquid surface, make collector there is better electric conductivity.
In the present embodiment, collector base material 12 adopts the stainless (steel) wire that model is 304.The specification limit of stainless (steel) wire is selected from 50 orders, 60 orders, 70 orders, 80 orders, 90 orders, 100 orders, 110 orders, 120 orders, 150 orders, 160 orders, 180 orders, 200 orders, 250 orders, 270 orders or 300 orders, in the present embodiment, the specification of stainless (steel) wire is 150 orders, the active material of can deviate from-embedded ion can be stable be coated in collection liquid surface, be conducive to the carrying out of electrode reaction.
For playing of making that stainless steel can be stable collected and the effect of conduction electron, and can not participate in electrode reaction, assurance battery performance, has carried out Passivation Treatment to stainless (steel) wire.In the present embodiment, the stainless detailed process of passivation is: at 50 ℃, stainless steel is inserted to half an hour in 20% nitric acid, make stainless steel surfaces form one deck passivating film, and then stainless steel is used as collector 12.Equally, if adopt stainless steel foil as collector, also can adopt the method to carry out Passivation Treatment to stainless steel foil.
The thickness of collector can affect the chemical property of battery, and the thickness of collector is too thin, can cause the mechanical strength of collector poor; The thickness of collector is too thick, after manufacturing electrode, can increase the weight of electrode, reduces the energy density of electrode.The thickness range of collector base material 12 is 5-200 μ m, thereby the thickness range of the collector forming is also 5-200 μ m, and now collector has preferably mechanical strength, simultaneously less on the energy density impact of electrode, in the present embodiment, the thickness of collector base material 12 is 50 μ m.
In the present embodiment, utilize tensile pulp machine 14 that slurry 10 is sticked on collector base material 12.Tensile pulp machine 14 inside have the slurry tank 16 of accommodating slurry 10, collector base material 12 is guided and is entered slurry tank 16 inside by deflector roll, collector base material 12 is immersed in slurry 10, owing to thering is binding agent in slurry 10, slurry 10 is sticked on collector base material 12.Further, in present embodiment, collector base material 12 is continuous stainless (steel) wire, and is wrapped in a rotating shaft 18, and so collector base material 12 can be continuous enters the interior immersion slurry 10 of tensile pulp machine 14, thereby has higher production efficiency.
On tensile pulp machine 14, be provided with thickness control device 20, for controlling the thickness of collector base material 12 spreading masses 10.In the present embodiment, thickness control device 20 is scraper.Scraper is arranged on slurry tank 16 tops, after collector base material 12 leaves slurry 10, scraper is wiped slurry unnecessary on collector base material 12 10 off according to predetermined thickness, thereby realizes the thickness of controlling collector base material 12 spreading masses 10, and makes the slurry 10 on collector base material 12 surfaces more even.
Certainly, can also be provided with the first buffer unit 22 being wound around between the rotating shaft 18 of collector base material 12 and tensile pulp machine 14, make collector base material 12 all the time in relatively suitable tensioning degree, avoid that collector base material 12 tensioning degrees are too low to be caused damaging with ground friction, also avoid that collector base material 12 tensioning degrees are too high causes distortion.Further, between rotating shaft 18 and the first buffer unit 22, the first draw-gear 24 can be set, by the first draw-gear 24, can drive rotating shaft 18 rotations at the uniform velocity discharge collector base material 12, the first draw-gear 24 coordinates and maintains collector base material 12 all the time in tensioning state with the first buffer unit 22 simultaneously.In the present embodiment, the first buffer unit 22 comprises housing 23, roller 25a, roller 25b and roller 25c.Housing 23 provides spacing and supports for roller 25a, roller 25b and roller 25c as framework.Roller 25a and roller 25b are pivoted on housing 23, and the pivotal axis of the two fixes with respect to the position of housing 23, and roller 25c is between roller 25a and roller 25b, and the position of roller 25c can be with respect to moving under housing 23 in the vertical directions.In the course of the work, collector base material 12 is during through the first buffer unit 22, and collector base material 12 is rolling friction with roller 25a, roller 25b and roller 25c, thereby can collector base material 12 not formed and be destroyed.Further, when the tensioning degree of collector base material 12 is lower, roller 25c can move downward to increase the distance between roller 25c and roller 25a and roller 25b, and now nationality is moved downward the tensioning degree that has improved collector base material 12 by roller 25c; At collector base material 12 tensioning degrees, when higher, roller 25c can move upward and shorten the distance of roller 25c and roller 25a and roller 25b, to reduce the tensioning degree of collector base material 12.
Further, between the first draw-gear 24 and the first buffer unit 22, be provided with the device 26 of taping.The device 26 of taping is taped for the position of soldering polar ear on collector, avoids described position to enter tensile pulp machine 14 binding paste 10 afterwards.
The manufacture method of battery electrode provided by the invention, adopts the mode that collector base material 12 immerses slurry 10 that slurry 10 is bonded in to collector base material 12 surfaces, is applicable to industry and produces continuously pole plate, has very high production efficiency.Further, due to the mode that adopts collector base material 12 to immerse slurry 10, the thickness of the slurry 10 on collector base material 12 surfaces is relatively thick, therefore this manufacturing method of battery electrode is highly suitable for the making of the battery pole plates of water system ion battery and water system hybrid ionic battery.Water system ion battery and water system hybrid ionic battery adopt the aqueous solution or alcoholic solution as electrolyte, because the aqueous solution has high ionic conductivity compared to organic solution, in battery charge and discharge process, negative or positive electrode and electrolyte intermediate ion exchange velocity are fast, thereby under high current charge-discharge condition, have stable performance at battery.
Step C: dry adhering to the collector base material 12 of slurry 10.
To adhering to the collector base material 12 of slurry 10, dry, slurry 10 is set on collector base material 12, realize and on collector base material 12 surfaces, form the coating that the active material by conductive agent, binding agent and can deviate from-embedded ion forms.To adhering to the collector base material 12 of slurry 10, carry out in drying course, bake out temperature scope is 50-150 ℃, in the present embodiment, by 28 pairs of collector base materials 12 that adhere to slurry 10 of baking oven, dries, and bake out temperature is 90 ℃.
Certainly, in the process of drying, also different bake out temperatures can be set, so that slurry 10 is when different conditions, bake out temperature is different, makes drying course more flexible, avoids slurry dry degree not or dry excessively.Be exemplified as, baking oven is divided into four sections of (not shown)s, is respectively the first drying section, the second drying section, the 3rd drying section and the 4th drying section.The bake out temperature of four drying sections arranges difference, such as bake out temperature that can the first drying section be set to the highest, if the bake out temperature of the first drying section is 150 ℃.Follow-up three drying sections reduce bake out temperature successively, and if the bake out temperature of the second drying section is 130 ℃, the bake out temperature of the 3rd drying section is 110 ℃, and the bake out temperature of the 4th drying section is 50 ℃.Make the collector base material 12 that adheres to slurry first enter the first drying section, because the bake out temperature of the first drying section is higher, slurry can be solidified fast, avoid pulp flow to cause the slurry on collector base material 12 surfaces inhomogeneous.The bake out temperature of the second drying section, the 3rd drying section and the 4th drying section reduces successively, avoids the slurry on collector base material 12 surfaces to be dried and excessively causes slurry dry and cracked.
The corresponding adhesive tape that bondd on collector base material 12, between thickness control device 20 and baking oven 28, be provided with adhesive tape tearing device 30, make to be bonded in the surface that the adhesive tape on collector base material 12 is removed to expose collector base material 12, so by tape device 26 and adhesive tape tearing device 30, make collector reserve certain area soldering polar ear, for follow-up making electrode has brought facility.
Step D: roll according to being scheduled to roll gap.
According to predetermined, roll gap and roll forming cated collector base material 12, thereby make the coating layer thickness on collector base material 12 surfaces more even, and the close and firm more of the combination between coating and collector base material 12.Being scheduled to roll interstice coverage is 0.2-3.0mm, in the present embodiment, adopts the cated collector base material 12 of 32 pairs of tools of roller to roll, and being scheduled to roll gap is 2mm.
Further, 32 pairs of collector base materials 12 of roller provide tractive effort, pull collector base material 12 to move, and collector base material 12 is discharged from rotating shaft 18, and the step of carrying out binding paste 10 and drying.In pole plate manufacturing process, to the hauling speed scope of collector base material 12, be 80-100m/h, preferably, hauling speed is 90m/h.
Certainly, independently the second draw-gear (not shown) also can be set between baking oven 28 and roller 32, by the second draw-gear, drive collector base material 12 to move, between the second draw-gear and roller 32, the second buffer unit (not shown) can also be set, make collector base material 12 all the time in suitable tensioning degree, and coordinate collector base material 12 hauling speeds.In whole manufacture method, the first draw-gear 24 and the second draw-gear can be set simultaneously, also the first draw-gear 24 can be only set and the second draw-gear is not set, or the second draw-gear is only set and the first draw-gear 24 is not set, further, also can only by roller 32, tractive effort be provided and the first draw-gear 24 and the second draw-gear are not set.So make the technological process of pole plate manufacture method simpler.
Step e: cut out according to preliminary dimension.
The cated collector base material 12 of tool, through after rolling, is cut out formation pole plate according to preliminary dimension.In the present embodiment, by cutter 34, the cated collector base material 12 of tool is cut into the pole plate that length and width are 10cm, the collector base material 12 after simultaneously cutting out has just formed collector.Certainly, the size of pole plate is not limited to above-mentioned numerical value, and the length of pole plate and width can also be 20cm*10cm or 30cm*20cm.
Further, the present invention also provides a kind of manufacture method of battery electrode, and the manufacture method of described battery electrode, on the basis of abovementioned steps, also comprises:
Step F: soldering polar ear.
Thereby soldering polar ear forms electrode on pole plate.The mode of soldering polar ear can adopt laser welding or ultrasonic bonding etc.In the present embodiment, adopt laser welding by tab welding to pole plate.
Corresponding to reserved the region of soldering polar ear on collector base material 12, such as being provided with tape device 26 and adhesive tape tearing device 30, the direct region to the reserved soldering polar ear of collector base material 12 by tab welding.If the region of reserved soldering polar ear,, before soldering polar ear, need to will not prepare the coating removal in the region of soldering polar ear on pole plate, such as coating polishing being fallen or being wiped off etc.
Certainly; the region of reserved soldering polar ear; the tape method of device and adhesive tape tearing device of the utilization that is not limited to disclose in present embodiment; those skilled in the art are under the enlightenment of the technology of the present invention marrow; also may do and come from his change; but as long as its function and effect and the present invention are same or similar, all should be covered by protection range of the present invention.
Although inventor has done more detailed elaboration and has enumerated technical scheme of the present invention, be to be understood that, to those skilled in the art, above-mentioned execution mode is made modification and/or accommodation or adopted the replacement scheme being equal to is obvious, all can not depart from the essence of spirit of the present invention, the term occurring in the present invention, for to the elaboration of technical solution of the present invention and understanding, can not be construed as limiting the invention.

Claims (13)

1. a manufacture method for battery pole plates, described battery comprises take the electrolyte that water or alcoholic solution be solvent, it is characterized in that, and the manufacture method of described battery pole plates comprises the following steps:
The active material of water, conductive agent, binding agent and can deviate from-embedded ion is mixed to form to slurry according to predetermined weight ratio;
Collector base material is immersed in slurry, slurry is sticked on collector base material;
To adhering to the collector base material of slurry, dry;
According to being scheduled to roll gap, roll;
According to preliminary dimension, cut out.
2. the manufacture method of battery pole plates according to claim 1, is characterized in that: the part by weight scope that described water accounts for described slurry is 10-50%.
3. the manufacture method of electrode pad according to claim 1, is characterized in that: the part by weight scope that described active material accounts for described slurry is 30-85%.
4. the manufacture method of battery pole plates according to claim 1, is characterized in that: the part by weight scope that described conductive agent accounts for described slurry is 1-20%.
5. the manufacture method of battery pole plates according to claim 1, is characterized in that: the part by weight scope that described binding agent accounts for described slurry is 1-20%.
6. the manufacture method of battery pole plates according to claim 1, it is characterized in that: described collector base material is selected from carbon-based material, a kind of in metal or alloy, wherein said carbon-based material is selected from vitreous carbon, graphite foil, foamy carbon, carbon felt, a kind of in carbon fiber, wherein said metal is selected from Al, Fe, Cu, Pb, Ti, Cr, Mo, Co, Ag or a kind of through in the above-mentioned metal of Passivation Treatment, wherein said alloy is selected from stainless steel, Al alloy, Ni alloy, Ti alloy, Cu alloy, Co alloy, Ti-Pt alloy, Pt-Rh alloy or a kind of through in the above-mentioned alloy of Passivation Treatment.
7. the manufacture method of battery pole plates according to claim 6, is characterized in that: described collector substrate surface has activated carbon coating.
8. the manufacture method of battery pole plates according to claim 6, it is characterized in that: described collector base material is stainless steel foil or stainless (steel) wire, the specification of described stainless (steel) wire is selected from 50 orders, 60 orders, 70 orders, 80 orders, 90 orders, 100 orders, 110 orders, 120 orders, 150 orders, 160 orders, 180 orders, 200 orders, 250 orders, 270 orders or 300 orders.
9. the manufacture method of battery pole plates according to claim 8, is characterized in that: described collector base material is stainless steel foil or stainless (steel) wire through Passivation Treatment.
10. the manufacture method of battery pole plates according to claim 9, is characterized in that: described collector base material thickness scope is 5-200 μ m.
11. manufacture methods of battery pole plates according to claim 1, is characterized in that: in the step of drying, bake out temperature scope is 50-150 ℃.
12. manufacture methods of battery pole plates according to claim 1, is characterized in that: in the process rolling, rolling interstice coverage is 0.2-3.0mm.
The manufacture method of 13. 1 kinds of battery electrodes, described battery comprises take the electrolyte that water or alcoholic solution be solvent, it is characterized in that: the manufacture method of battery electrode comprises the pole plate soldering polar ear that the manufacture method of arbitrary battery pole plates in claim 1 to 12 is made.
CN201210231601.4A 2012-07-05 2012-07-05 Battery plate and electrode manufacturing method Pending CN103531744A (en)

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CN108550787A (en) * 2018-04-26 2018-09-18 北京石墨烯研究院 Lithium ion cell positive and lithium ion battery comprising it
CN111171518A (en) * 2020-01-21 2020-05-19 西安理工大学 Preparation method of carbon fiber composite electrode plate with thickness of 1mm

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CN1716681A (en) * 2004-06-30 2006-01-04 三星Sdi株式会社 Lithium secondary battery
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CN1716681A (en) * 2004-06-30 2006-01-04 三星Sdi株式会社 Lithium secondary battery
CN101262056A (en) * 2007-03-08 2008-09-10 复旦大学 A water solution chargeable lithium ion battery
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Publication number Priority date Publication date Assignee Title
CN107046133A (en) * 2017-03-16 2017-08-15 成都新柯力化工科技有限公司 A kind of lithium battery anode body and preparation method using aluminum phosphate foam glass as collector
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CN111171518A (en) * 2020-01-21 2020-05-19 西安理工大学 Preparation method of carbon fiber composite electrode plate with thickness of 1mm
CN111171518B (en) * 2020-01-21 2022-08-05 西安理工大学 Preparation method of carbon fiber composite electrode plate with thickness of 1mm

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