CN104465126B - A kind of anti-corrosion electric conducting composite current collector high and its manufacture method - Google Patents
A kind of anti-corrosion electric conducting composite current collector high and its manufacture method Download PDFInfo
- Publication number
- CN104465126B CN104465126B CN201410637410.7A CN201410637410A CN104465126B CN 104465126 B CN104465126 B CN 104465126B CN 201410637410 A CN201410637410 A CN 201410637410A CN 104465126 B CN104465126 B CN 104465126B
- Authority
- CN
- China
- Prior art keywords
- coating
- current collector
- conductive
- composite current
- base material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- Y02E60/13—Energy storage using capacitors
Abstract
The present invention relates to a kind of capacitor assembly, more particularly to a kind of anti-corrosion electric conducting composite current collector high and its manufacture method.A kind of anti-corrosion electric conducting composite current collector high, the main body of the composite current collector is base material, and the surface of base material coats conductive bond transition zone and conductive anticorrosive coat successively；Described base material is made up of metal material, and structure is the one kind in metal foil, wire netting, metal grid, punching net, mesh grid, and its thickness is 0.01mm ~ 2mm.Above-mentioned metal material is generally copper or aluminium.Manufacture is containing only a pair of battery cores of pole piece, the coating of base material one side；Internal series-connection of the manufacture containing multipair pole piece or battery core in parallel, base material need dual coating.The collector pliability is good, can 180 ° bending, overcome the shortcoming that graphite cake is frangible, be easily etched；With the electric conductivity higher than conductive plastics；Preparation process is continuous, process is simple, production efficiency are high.
Description
Technical field
The present invention relates to a kind of capacitor assembly, more particularly to a kind of anti-corrosion electric conducting composite current collector high and its system
Make method.
Background technology
With global warming, resource shortage, new environmental type is all being researched and developed in various countries worldwide and area
The energy, and ultracapacitor production material used is commonly environmental protection.Before ultracapacitor is due to having a wide range of applications
Scape and huge potential market and turn into the study hotspot in international energy field.Because ultracapacitor has charge/discharge rates
Hurry up, it is environmentally safe, the advantages of have extended cycle life, promise to be this century new green energy resource.Just because of super electricity
Many significant advantages of container, in automobile (particularly electric automobile, fuel combination automobile and exceptional load vehicle), electric power, iron
The aspects such as road, communication, national defence, consumption electronic products have huge application value and market potential, thus by countries in the world
Institute's extensive concern.Effect of the ultracapacitor played in car with mixed energy source is particularly significant.Have many in energy mix technology
Using alternative energy source, such as solar energy, wind energy or fuel cell will be used.But due to the energy source characteristic of itself, certainly
Having determined the mode of these generatings often has inhomogeneities, and electric energy output is susceptible to change.This is accomplished by being buffered using a kind of
Device carrys out storage energy.In the automobile of above-mentioned use alternative energy source technology, ultracapacitor is a kind of new critical component.
Using in fuel cell-powered automobile, if being used in combination ultracapacitor, then fuel cell just can be with
Meet continued power demand, and not exclusively peak value is powered.In addition to it disclosure satisfy that the demand that peak value is powered, ultracapacitor is also
With the other elements incomparable response time.The powerful performance and fuel cell of ultracapacitor are combined, can be with
Obtain smaller, the weight more less expensive fuel cell system of light, price.
Ultracapacitor can also enable to be in the hydrogen fuel cell of development with hydrogen fuel cell perfect adaptation
It is applied to multiple fields.Such as hydrogen cell automobile, will height when at the uniform velocity being travelled due to the energy ratio needed in accelerator
Much.If without energy accumulator, hydrogen fuel cell will be made it is very big, to meet highest peak energy demand, its into
Originally being so great that to stand.By by superfluous energy stores in energy accumulator, it is possible in a short time by depositing
Reservoir provides required peak energy.
Effect of the ultracapacitor in electric motor coach is particularly huge.In view of " visual pollution " of trolleybus trolley line with
And " mobility is poor ", " planning is difficult " Three Difficult Issues, cause trolleybus increasingly to be met with China unfrequented.But because oil is nervous
The energy crisis and problem of environmental pollution brought with motor vehicle exhaust emission increasingly show especially, using automobile also non-ideal selection, cause
The development of urban public transport has been absorbed in awkward awkward condition.And the appearance of super capacity public transport electric car, efficiently solve this
One problem.Ultracapacitor has turned into the traditional electric car defect of improvement, the advantages of play its zero-emission, energy-conservation, low cost, low noise
A kind of advanced energy storage device.Super capacity public transport electric car is the novel energy-conserving electric car with ultracapacitor as electrical source of power,
Vehicle maintains the advantage of trolleybus, does not have any discharge, while trackless is wireless, has fully met modernization environmental protection public
The need for friendship.
New-energy automobile is the field that Global Auto industry is paid close attention to, and super capacitor is its vitals.
Ultracapacitor is broadly divided into electric double layer type ultracapacitor and oxidation-reduction type ultracapacitor.Using electric double layer
The super capacitor energy density of electric capacity is too small.The fake capacitance that high power capacity is obtained by the electrochemical process of material surface is super
Capacitor is substantially also to rely on electrochemical process energy storage, substantially similar to battery (such as lithium ion battery), so base
High specific power and long-life battery are can be considered in the ultracapacitor of fake capacitance.The generation shape of current existing fake capacitance
Formula has：(1) the surface chemistry adsorption desorption of electrode and deficient potential are deposited；(2) electrode surface sull such as RuO2, IrO2,
The redox reaction of Cr3O4；(3) doping and dedoping of conducting polymer；(4) the surface insertion-abjection of lithium ion.But it is existing
There are all types of fake capacitance ultracapacitors to be respectively present cycle life poor, the problems such as expensive, can not still meet practical
Requirement.
The mode that fake capacitance is obtained based on thin liquid layer redox couple that this patent is related to, is a kind of new function admirable
Ultracapacitor.The Novel super capacitor is given and accepted using the redox couple in liquid phase (solution) on inert solid electrode
The Faradaic processes of electronics, its active material is solvable oxidation-reduction pair in the thin liquid layer in inert electrode surface.Before discharge and recharge
Afterwards there is no chemical change and physical change in electrode solid phase.On the one hand, the ultracapacitor not only has conventional Super capacitor
The characteristics of high-specific-power, long circulation life and high security, while more competitive in price；On the other hand, due to adopting
There is specific capacity higher with liquid phase energy storage mode, thus again than existing ultra-capacitor with specific energy higher.
The characteristics of Novel super capacitor, shows as high power high current charge-discharge, therefore it is required that having high electrical conductivity
Current collector material be used for collect redox reaction generation electric current.At present, collector typically selects graphite cake, graphite cake to lead
Electrically it is good, can high current charge-discharge, but graphite cake is easily etched, and especially under conditions of overcharging, is easily etched electrochemically,
Graphite cake positive electrode surface is corroded, and forms pit, is etched electrochemically when serious and penetrated, and causes positive and negative electrode electrolyte string liquid, this
The service life of ultracapacitor is had a strong impact on, while graphite cake price, fragility are big, these shortcomings have had a strong impact on graphite cake
Application in the Novel super capacitor.Additionally, some high concentration redox couple electrolyte have highly acid, strong oxygen at present
Change reproducibility, general conductance metal material high such as Cu is not appropriate for for highly acid, strong oxidizing property electrolyte, and corrosion resistant
The conductive material of erosion such as conductive plastics, its electric conductivity is well below metal material and graphite cake, it is impossible to meet novel super electric capacity
The need for device high current charge-discharge.The collector of electrode plays a supportive role and CURRENT DISTRIBUTION effect to electrode, is the important of electrode
Part.During electrochmical power source use, corrosion of the electrolyte to collector is one of the reason for electrochmical power source fails.Cause
It is most important for the Novel super capacitor that this develops corrosion-resistant, high conductivity current collector material.Chinese patent
CN101192669A uses the metal foil that will scribble conducting resinl to be clipped in and is folded in half between the conductive film of " V " type, by hot pressing
The method of compound or vacuum coated is needed in one layer of method of anti-corrosion electric conducting thin-film material of metal collector Surface coating, the method
Conducting resinl, base material cutting are applied by base material, conductive film cuts, conductive film is rolled over " V ", base material and is clipped between " V " type film
The operations such as hot pressing, complex process and pad pasting process are discontinuously changed, and production efficiency is not high.
The content of the invention
The present invention provides a kind of anti-corrosion electric conducting composite current collector high, and the collector pliability is good, can 180 ° of bendings,
Overcome the shortcoming that graphite cake is frangible, be easily etched；With the electric conductivity higher than conductive plastics；Preparation process is continuous, technique is simple
Single, production efficiency is high.
The present invention also provides a kind of manufacture method of anti-corrosion electric conducting composite current collector high, and the method can be realized described
The serialization of composite current collector, high efficiency manufacture production.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of anti-corrosion electric conducting composite current collector high, the main body of the composite current collector is base material, the surface of base material according to
Secondary coating conductive bond transition zone and conductive anticorrosive coat；Described base material is made up of metal material, and structure is metal foil, metal
One kind in net, metal grid, punching net, mesh grid, its thickness is 0.01mm~2mm.Above-mentioned metal material is generally copper
Or aluminium.Manufacture is containing only a pair of battery cores of pole piece, the coating of base material one side；Internal series-connection or simultaneously of the manufacture containing multipair pole piece
Connection battery core, base material needs dual coating.
Preferably, described conductive bond transition zone is formed by conductive component, adhesion component and dispersant, lead
Electric protection layer is that the blending conducting polymer coating mixed by conductive component and antiseptic ingredient is formed.Conductive component：Bond
Component：The weight ratio of dispersant is 20~30:40~60:40~60；Conductive component：The weight ratio of antiseptic ingredient is 50~90:
10~50.
Preferably, conductive component be selected from activated carbon, NACF, carbon chopped strand, carbon fiber powder, CNT,
In graphite, acetylene black, Graphene, Fullerene C20, carbon black, polyaniline, polypyrrole, poly- (3,4- ethene dioxythiophenes) PEDOT
The combination of one or more；Adhesion component is epoxy resin, phenolic resin, acrylic resin, acetic acid-vinyl acetate resin, poly-
The combination of one or more in urethane；Dispersant be benzene,toluene,xylene, dichloromethane, n-methlpyrrolidone NMP,
One or several combination in polystyrolsulfon acid；Antiseptic ingredient is ethylene-vinyl acetate copolymer, polyethylene, poly- third
The combination of one or more in alkene, polymethyl methacrylate, polystyrene or derivatives thereof.
Preferably, the forming method of described conductive anticorrosive coat is at 80~130 DEG C by antiseptic ingredient pentyl acetate
Lower dissolving, adds conductive component, and electroconductive glue materials are obtained after stirring, and the electroconductive glue materials are coated to having been coated with conductive bond
Property transition zone substrate outer surface, form conductive anticorrosive coat.
Be coated on for good conductivity, adhesion strength caking property transition zone high using the method for coating, printing led by the present invention
Electrical good, intensity substrate surface high, then electroconductive glue materials well prepared in advance are applied to are coated with conductive bond transition zone
Substrate surface, dry after hot-rolling pressure, obtain the conductive anticorrosive coat of good conductivity, resistance to strong acid, powerful oxidation corrosion resistance reproducibility.
For highly acid, strong oxidizing property electrolyte, the present invention coats high conductivity base material and is protected using conductive anticorrosive coat
Shield, conductive anticorrosive coat is first to dissolve macromolecular material in a solvent, adds high conductive material and is made glue in a heated condition
Material, is then applied to be coated with the good conductivity of conductive bond transition zone, intensity substrate surface high, after drying, roll-in
It is made composite current collector.
A kind of manufacture method of described composite current collector, the method comprises the following steps：
A, substrate surface coating conductive bond transition zone：Uniform conductive bond mistake is prepared under the conditions of high speed shear
A layer slurry is crossed, adjustment slurry viscosity is 2000~8000mPaS, by transfer coated, blade coating, extrusion coated or screen printing
Slurry is coated to substrate surface by the mode of brush, is dried at 40~200 DEG C, obtains the coating that thickness is 2~50 μm, and the coating is
Conductive bond transition zone；
Conductive bond transition zone is primarily to be conducive to the bonding of conductive anticorrosive coat and base material, collector reserves pole
Ear.If simply making one group of electric capacity of positive and negative electrode, the coating of base material one side can be only done, if making multi-group electrode string simultaneously
The electric capacity of connection is, it is necessary to do the dual coating of base material.
B, electroconductive glue materials are prepared, antiseptic ingredient pentyl acetate are dissolved at 80~130 DEG C, add conductive component,
Electroconductive glue materials are obtained after stirring, the viscosity of electroconductive glue materials is adjusted, the electroconductive glue materials is applied to and is had been coated with conductive bond
The substrate outer surface of transition zone, is dried, and collector band is obtained after hot-rolling pressure；
The good conductive anticorrosive coat of electric conductivity is made, that is, prevents highly acid, strong oxidizing property electrolyte and base material direct
The thin layer of contact, it is desirable to existing good electric conductivity, electrochemicaUy inert again, it has chemically stable to electrode activity solution
Property, conductive anticorrosive coat is made thin layer by coating-rolling methods.This has the conductive anticorrosive coat of cementation equal on thickness
It is even, it is easy to the implementation of thermal bonding process；Compactness is enough, to prevent acid, corruption of the strong oxidizing property active electrolyte to base material
Erosion.
C, with cutting die by collector band be washed into needed for size and shape obtain product.
Preferably, the viscosity of described electroconductive glue materials is 5000~15000mPaS.The viscosity control mesh of electroconductive glue materials
Be for the ease of sizing material film forming in coating process.Viscosity is too low, is unable to film forming, and viscosity too Gao Zeyi blocks coating die orifice, no
Can coating.
Preferably, electroconductive glue materials are to be applied to have been coated with leading with the mode of transfer coated or blade coating or extrusion coated
On the base material of electric caking property transition zone, coating temperature is controlled at 80~120 DEG C, and coating thickness scope is 0.1~1mm, coating speed
Degree control range is 0.001~2m/s.Coating temperature is low, and sizing material solidifies quickly, the solvent in coating temperature then sizing material high is rapid
Volatilization, viscosity increase, and then coating die orifice is blocked, coating can not be smoothed out.Coating speed is too low, easily causes sizing material in base
Piled up on material, coating speed is too high, sizing material has little time to flow out film forming from die orifice, easily causes holiday.
It is that the solvent volatilization in electroconductive glue materials is clean preferably, dried after coating, drying temperature scope is 130~
150℃；The clean pole piece of solvent volatilization, thickness and precision is controlled at 2~8 μm, and with the multiple roll-in of pole piece roller compression machine, roller temperature control exists
Between 60~150 DEG C, roll-in number of times 1~5 time, 2~10 μm of each roll-in thickness thinning.
Preferably, the edge of composite current collector that obtains of step c by coat thermosetting resin be heating and curing edge sealing or
Person uses hot melt adhesive edge.Thermosetting resin is selected from corrosion resistance epoxy resin or phenolic resin；PUR is selected from ethyl vinyl acetate second
Alkene copolymer plastics, polyethylene, polypropylene.
A kind of counterfeit electric-type ultracapacitor containing described composite current collector.Involved ultracapacitor is by porous
The redox reaction of the electroactive substance in thin liquid layer near electrode surfaces externally and internally is the storage mode of main energetic.
Composite current collector of the invention, has strong acid primarily directed to current some high concentration redox couple electrolyte
The characteristics of property, Strong oxdiative reproducibility, general conductance metal material high such as Cu is not appropriate for for highly acid, strong oxidizing property
Electrolyte, and the electric conductivity of the material such as corrosion resistant conductive material such as graphite cake or conductive plastics is well below metal material, no
The need for Novel super capacitor high current charge-discharge can be met, therefore develop corrosion-resistant, high conductivity composite current collector
Material.
The present invention on base material coat conductive bond transition zone, conductive anticorrosive coat be first by macromolecular material in a solvent
Dissolving, adds high conductive material and is made sizing material in a heated condition, is then applied to be coated with conductive bond transition zone
Good conductivity, intensity substrate surface high, are made after drying, roll-in, it is easy to the realization of large-scale industrial production.It is of the invention
Composite current collector, process is simple, production serialization, efficiently, it is easy to mass produce.
Specific embodiment
Below by specific embodiment, technical scheme is described in further detail.It should be appreciated that this hair
Bright implementation is not limited to the following examples, and any formal accommodation and/or change made to the present invention will all fall
Enter the scope of the present invention.
In the present invention, if not refering in particular to, all of part, percentage are unit of weight, equipment and raw material for being used etc.
It is commercially available or commonly used in the art.Method in following embodiments, unless otherwise instructed, is the normal of this area
Rule method.
A kind of anti-corrosion electric conducting composite current collector high, the main body of the composite current collector is base material, the surface of base material according to
Secondary coating conductive bond transition zone and conductive anticorrosive coat；Described base material is made up of metal material, and structure is metal foil, metal
One kind in net, metal grid, punching net, mesh grid, its thickness is 0.01mm~2mm.Above-mentioned metal material is generally copper
Or aluminium.
Embodiment 1
A kind of manufacture method of composite current collector, comprises the following steps：
A, substrate surface coating conductive bond transition zone：Uniform conductive bond mistake is prepared under the conditions of high speed shear
A layer slurry is crossed, adjustment slurry viscosity is 2000~8000mPaS, by transfer coated, blade coating, extrusion coated or screen printing
Slurry is coated to substrate surface by the mode of brush, is dried at 40~200 DEG C, obtains the coating that thickness is 2~50 μm, and the coating is
Conductive bond transition zone；
B, electroconductive glue materials are prepared, antiseptic ingredient pentyl acetate are dissolved at 80~130 DEG C, add conductive component,
Electroconductive glue materials are obtained after stirring, the viscosity of electroconductive glue materials is adjusted to 10000mPaS, the electroconductive glue materials is applied to and has been applied
The substrate outer surface of conductive bond transition zone is covered, is dried, collector band is obtained after hot-rolling pressure；
Electroconductive glue materials are to be applied to have been coated with conductive bond with the mode of transfer coated or blade coating or extrusion coated
On the base material of transition zone, coating temperature is controlled at 85 DEG C, and coating thickness scope is 0.1~1mm, and coating speed control range is
0.1~2m/s.Dried after coating, drying temperature scope is 130~150 DEG C；The clean pole piece of solvent volatilization, thickness and precision control
At 2~8 μm, with the multiple roll-in of pole piece roller compression machine, roller temperature is controlled between 60~150 DEG C, roll-in number of times 1~5 time, each roll-in
2~10 μm of thickness thinning.
C, with cutting die by collector band be washed into needed for size and shape obtain product.
D, composite current collector edge by coat thermosetting resin be heating and curing edge sealing or with hot melt adhesive edge.
Each layer raw material of the composite current collector of table 1 and proportioning (unit：g)
Embodiment 6
A kind of manufacture method of composite current collector, comprises the following steps：
A, substrate surface coating conductive bond transition zone：Uniform conductive bond mistake is prepared under the conditions of high speed shear
A layer slurry is crossed, adjustment slurry viscosity is 2000~8000mPaS, by transfer coated, blade coating, extrusion coated or screen printing
Slurry is coated to substrate surface by the mode of brush, is dried at 40~200 DEG C, obtains the coating that thickness is 2~50 μm, and the coating is
Conductive bond transition zone；
B, electroconductive glue materials are prepared, antiseptic ingredient pentyl acetate are dissolved at 80~130 DEG C, add conductive component,
Electroconductive glue materials are obtained after stirring, the viscosity of electroconductive glue materials is adjusted to 6000mPaS, the electroconductive glue materials is applied to and has been applied
The substrate outer surface of conductive bond transition zone is covered, is dried, collector band is obtained after hot-rolling pressure；
Electroconductive glue materials are to be applied to have been coated with conductive bond with the mode of transfer coated or blade coating or extrusion coated
On the base material of transition zone, coating temperature is controlled at 115 DEG C, and coating thickness scope is 0.1~1mm, and coating speed control range is
0.1~2m/s.Dried after coating, drying temperature scope is 130~150 DEG C；The clean pole piece of solvent volatilization, thickness and precision control
At 2~8 μm, with the multiple roll-in of pole piece roller compression machine, roller temperature is controlled between 60~150 DEG C, roll-in number of times 1~5 time, each roll-in
2~10 μm of thickness thinning.
C, with cutting die by collector band be washed into needed for size and shape obtain product.
D, composite current collector edge by coat thermosetting resin be heating and curing edge sealing or with hot melt adhesive edge.
Embodiment 7
A kind of manufacture method of composite current collector, comprises the following steps：
A, substrate surface coating conductive bond transition zone：Uniform conductive bond mistake is prepared under the conditions of high speed shear
A layer slurry is crossed, adjustment slurry viscosity is 2000~8000mPaS, by transfer coated, blade coating, extrusion coated or screen printing
Slurry is coated to substrate surface by the mode of brush, is dried at 40~200 DEG C, obtains the coating that thickness is 2~50 μm, and the coating is
Conductive bond transition zone；
B, electroconductive glue materials are prepared, antiseptic ingredient pentyl acetate are dissolved at 80~130 DEG C, add conductive component,
Electroconductive glue materials are obtained after stirring, the viscosity of electroconductive glue materials is adjusted to 15000mPaS, the electroconductive glue materials is applied to and has been applied
The substrate outer surface of conductive bond transition zone is covered, is dried, collector band is obtained after hot-rolling pressure；
Electroconductive glue materials are to be applied to have been coated with conductive bond with the mode of transfer coated or blade coating or extrusion coated
On the base material of transition zone, coating temperature is controlled at 115 DEG C, and coating thickness scope is 0.1~1mm, and coating speed control range is
0.1~2m/s.Dried after coating, drying temperature scope is 130~150 DEG C；The clean pole piece of solvent volatilization, thickness and precision control
At 2~8 μm, with the multiple roll-in of pole piece roller compression machine, roller temperature is controlled between 60~150 DEG C, roll-in number of times 1~5 time, each roll-in
2~10 μm of thickness thinning.
C, with cutting die by collector band be washed into needed for size and shape obtain product.
D, composite current collector edge by coat thermosetting resin be heating and curing edge sealing or with hot melt adhesive edge.
The composite current collector that the above method is made has the architectural feature shown in table 2, and its performance parameter is shown in Table 3.
Each thickness degree of the composite current collector of table 2
Wherein in embodiment 1~3, base material is one side coating conductive bond transition zone and conductive anticorrosive coat, embodiment 4~
7 is dual coating.Manufacture is containing only a pair of battery cores of pole piece, the coating of base material one side；Go here and there inside of the manufacture containing multipair pole piece
Connection or battery core in parallel, base material need dual coating.
The present invention uses for reference coating, roll-in, the punching technique of lithium battery pole slice manufacture, technology maturation, process is simple, continuous
Change, efficiently, be the preferred technique route for manufacturing counterfeit electric-type ultracapacitor composite current collector.
Composite current collector antiseptic property test of the invention：
The composite current collector that side will be sealed is immersed in the salpeter solution of 2mol/L, and after 60 days, the constant indigo plant of salpeter solution will
Collector pulls cleaning out, does not find hot spot, and antiseptic property is preferable.
Conducting performance test：The sheet resistance for using four probe method to measure conductive anticorrosive coat is 102~105Ω/square。
Conductive anticorrosive coat electrical conductivity test：Conductive anticorrosive coat is peeled off from base material with blade, cuts a conduction of 1cm wide
Anti-corrosion film (conductive anticorrosive coat), two lines are drawn as two contact points of test pencil of universal meter being separated by 1cm.Then by conduction
The logical 100mA constant-current sources of anti-corrosion film, it is U to survey its voltage with universal meter, byCalculate resistance, then byD is thickness, and unit m) calculates conductive anti-corrosion film conductivity, ρ=0.7-1.0 Ω .m.
Table 3
The composite current collector of the present invention assembling capacity for using 5cm × 9cm is the ultracapacitor list battery core of 75mAh, internal resistance
It is 20~40m Ω, cycle life is up to more than 10000 times.
Embodiment described above is a kind of preferably scheme of the invention, not makees any formal to the present invention
Limitation, also has other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (5)
1. a kind of anti-corrosion electric conducting composite current collector high, it is characterised in that：The main body of the composite current collector is base material, base material
Surface coat conductive bond transition zone and conductive anticorrosive coat successively；Described base material is made up of metal material, and structure is gold
One kind in category paper tinsel, wire netting, metal grid, its thickness is 0.01mm ~ 2mm；Described conductive bond transition zone is by conduction
Component, adhesion component and dispersant are formed, and conductive anticorrosive coat is the blending mixed by conductive component and antiseptic ingredient
Conducting polymer coating is formed；
Anti-corrosion electric conducting composite current collector high is obtained by the following method：
A, substrate surface coating conductive bond transition zone：Uniform conductive bond transition zone is prepared under the conditions of high speed shear
Slurry, adjustment slurry viscosity is 2000 ~ 8000mPaS, by the side of transfer coated, blade coating, extrusion coated or silk-screen printing
Slurry is coated to substrate surface by formula, is dried at 40 ~ 200 DEG C, obtains the coating that thickness is 2 ~ 50 μm, and the coating is conductive bond
Property transition zone；
B, electroconductive glue materials are prepared, antiseptic ingredient pentyl acetate is dissolved at 80 ~ 130 DEG C, add conductive component, stirring is equal
Electroconductive glue materials are obtained after even, the viscosity of electroconductive glue materials is adjusted, by transfer coated, blade coating, extrusion coated or silk-screen printing
The electroconductive glue materials are applied to mode the substrate outer surface for having been coated with conductive bond transition zone, are dried, and are collected after hot-rolling pressure
Fluid band, electroconductive glue materials coating temperature is controlled at 80 ~ 120 DEG C, and coating thickness scope is 0.1 ~ 1mm, coating speed control range
It is 0.001 ~ 2m/s；Drying temperature scope after coating is 130 ~ 150 DEG C；The clean collector of solvent volatilization, thickness and precision control
At 2 ~ 8 μm, with the multiple roll-in of pole piece roller compression machine, roller temperature is controlled between 60 ~ 150 DEG C system, roll-in number of times 1 ~ 5 time, each roll-in
2 ~ 10 μm of thickness thinning；
C, with cutting die by collector band be washed into needed for size and shape composite current collector after, composite current collector edge is passed through
Coating thermosetting resin be heating and curing edge sealing or with heat adhesive edge.
2. composite current collector according to claim 1, it is characterised in that：Conductive component be selected from activated carbon, NACF,
Carbon chopped strand, carbon fiber powder, CNT, graphite, acetylene black, Graphene, Fullerene C20, carbon black, polyaniline, polypyrrole,
It is poly-（3,4- ethene dioxythiophenes）The combination of one or more in PEDOT；Adhesion component is epoxy resin, phenolic resin, third
The combination of one or more in olefin(e) acid resin, acetic acid-vinyl acetate resin, polyurethane；Dispersant be benzene,toluene,xylene,
One or several combination in dichloromethane, n-methlpyrrolidone NMP, polystyrolsulfon acid；
Antiseptic ingredient be ethylene-vinyl acetate copolymer, polyethylene, polypropylene, polymethyl methacrylate, polystyrene or its
The combination of one or more in derivative.
3. composite current collector according to claim 1, it is characterised in that：The forming method of described conductive anticorrosive coat be by
Antiseptic ingredient pentyl acetate is dissolved at 80 ~ 130 DEG C, adds conductive component, and electroconductive glue materials are obtained after stirring, by this
Electroconductive glue materials are coated to the substrate outer surface for having been coated with conductive bond transition zone, form conductive anticorrosive coat.
4. composite current collector according to claim 1, it is characterised in that：The viscosity of described electroconductive glue materials be 5000 ~
15000mPa·S。
5. the counterfeit electric-type ultracapacitor of a kind of composite current collector containing described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637410.7A CN104465126B (en) | 2014-11-13 | 2014-11-13 | A kind of anti-corrosion electric conducting composite current collector high and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637410.7A CN104465126B (en) | 2014-11-13 | 2014-11-13 | A kind of anti-corrosion electric conducting composite current collector high and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104465126A CN104465126A (en) | 2015-03-25 |
| CN104465126B true CN104465126B (en) | 2017-06-06 |
Family
ID=52911025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410637410.7A Active CN104465126B (en) | 2014-11-13 | 2014-11-13 | A kind of anti-corrosion electric conducting composite current collector high and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104465126B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375035B (en) * | 2015-12-21 | 2018-03-20 | 东莞新能源科技有限公司 | A kind of collector, its preparation method and the lithium ion battery containing the collector |
| CN105762366A (en) * | 2016-05-04 | 2016-07-13 | 江苏深苏电子科技有限公司 | Composite current collector of lithium ion battery and manufacturing method of composite current collector |
| CN106255381B (en) * | 2016-07-18 | 2018-07-20 | 广东科云辰航计算科技有限责任公司 | A kind of server cabinet |
| CN108428954B (en) * | 2018-03-31 | 2020-07-24 | 重庆市紫建电子股份有限公司 | Device capable of rapidly researching electrochemical behavior of lithium ion battery |
| CN113150723A (en) * | 2020-12-29 | 2021-07-23 | 江苏卓高新材料科技有限公司 | Conductive adhesive, and composite current collector, battery and object with conductive adhesive |
| CN113451541B (en) * | 2021-05-28 | 2023-02-03 | 上海空间电源研究所 | High-voltage lithium ion positive electrode piece, battery and manufacturing method thereof |
| CN114361569A (en) * | 2022-01-06 | 2022-04-15 | 广州小鹏汽车科技有限公司 | Cylindrical battery, preparation method thereof and vehicle |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890766A (en) * | 2003-12-26 | 2007-01-03 | Tdk株式会社 | Electrode for capacitor |
| CN101192669A (en) * | 2006-12-01 | 2008-06-04 | 中国人民解放军63971部队 | Corrosion resistant composite current collector and its manufacture method |
| CN101899233A (en) * | 2010-07-29 | 2010-12-01 | 上海翰博实业有限公司 | Supercapacitor electrode corrosion-resistant conductive coating |
| CN102496484A (en) * | 2011-11-30 | 2012-06-13 | 江苏富朗特新能源有限公司 | Method for manufacturing organic supercapacitor electrode plate |
| CN202474091U (en) * | 2011-10-31 | 2012-10-03 | 珠海光宇电池有限公司 | Lithium ion battery pole piece and lithium ion battery |
| CN102832392A (en) * | 2012-06-27 | 2012-12-19 | 长沙业翔能源科技有限公司 | Current collector carbon coated aluminum foil and its preparation method |
| CN103219521A (en) * | 2012-01-20 | 2013-07-24 | 北京好风光储能技术有限公司 | Bipolarity current collector and preparation method |
| CN103329331A (en) * | 2010-11-12 | 2013-09-25 | 利登能源股份有限公司 | High performance lithium or lithium ion cell |
| CN203367417U (en) * | 2012-07-10 | 2013-12-25 | 张宝生 | Metal foil provided with electric conduction protective coating |
| CN103839694A (en) * | 2012-11-27 | 2014-06-04 | 海洋王照明科技股份有限公司 | Graphene/metal current collector preparing method |
| CN104078633A (en) * | 2013-03-28 | 2014-10-01 | 比亚迪股份有限公司 | Diaphragm, preparing method of diaphragm and lithium ion battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5834483B2 (en) * | 2011-05-12 | 2015-12-24 | 凸版印刷株式会社 | Power storage device exterior materials |
-
2014
- 2014-11-13 CN CN201410637410.7A patent/CN104465126B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890766A (en) * | 2003-12-26 | 2007-01-03 | Tdk株式会社 | Electrode for capacitor |
| CN101192669A (en) * | 2006-12-01 | 2008-06-04 | 中国人民解放军63971部队 | Corrosion resistant composite current collector and its manufacture method |
| CN101899233A (en) * | 2010-07-29 | 2010-12-01 | 上海翰博实业有限公司 | Supercapacitor electrode corrosion-resistant conductive coating |
| CN103329331A (en) * | 2010-11-12 | 2013-09-25 | 利登能源股份有限公司 | High performance lithium or lithium ion cell |
| CN202474091U (en) * | 2011-10-31 | 2012-10-03 | 珠海光宇电池有限公司 | Lithium ion battery pole piece and lithium ion battery |
| CN102496484A (en) * | 2011-11-30 | 2012-06-13 | 江苏富朗特新能源有限公司 | Method for manufacturing organic supercapacitor electrode plate |
| CN103219521A (en) * | 2012-01-20 | 2013-07-24 | 北京好风光储能技术有限公司 | Bipolarity current collector and preparation method |
| CN102832392A (en) * | 2012-06-27 | 2012-12-19 | 长沙业翔能源科技有限公司 | Current collector carbon coated aluminum foil and its preparation method |
| CN203367417U (en) * | 2012-07-10 | 2013-12-25 | 张宝生 | Metal foil provided with electric conduction protective coating |
| CN103839694A (en) * | 2012-11-27 | 2014-06-04 | 海洋王照明科技股份有限公司 | Graphene/metal current collector preparing method |
| CN104078633A (en) * | 2013-03-28 | 2014-10-01 | 比亚迪股份有限公司 | Diaphragm, preparing method of diaphragm and lithium ion battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104465126A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104465126B (en) | A kind of anti-corrosion electric conducting composite current collector high and its manufacture method | |
| CN102208598B (en) | Electrode plate of graphene coating modified lithium secondary battery and manufacturing method thereof | |
| CN101292310B (en) | Lithium ion capacitor | |
| CN103715394B (en) | A kind of lithium ion cell positive and preparation method thereof | |
| CN104051734B (en) | A kind of polyoxometallate carbon nanotube lithium battery electrode materials and its preparation method | |
| CN104600251A (en) | Lithium-sulfur battery positive electrode and preparation method thereof | |
| CN107240721A (en) | The preparation method of bipolar electrode and lithium ion battery and lithium ion battery | |
| CN104466134B (en) | The preparation method of self-supporting graphene/carbon nano-tube hybrid foam support amino anthraquinones base polymer | |
| CN105206430B (en) | Polyaniline nanotube array/graphene composite material electrode and its preparation method and application | |
| CN103035409A (en) | Graphene composite electrode and preparation method and application | |
| CN104425134A (en) | High-porosity and high-conductivity porous electrode, batch manufacturing process of porous electrode and super pseudo-capacitor using porous electrode | |
| CN108054019A (en) | Laminated construction NiCo2S4@NixCo(1-x)(OH)2The preparation method and application of composite material | |
| CN104882614A (en) | Lead-acid battery plate with high energy density | |
| CN105609703B (en) | Integrated electrode and manufacture method | |
| CN108539190A (en) | The molybdenum trioxide of a kind of oxygen-containing vacancy and using it as the water system aluminium ion battery of negative electrode active material and their preparation method | |
| CN111613769A (en) | Positive electrode and preparation method and application thereof | |
| CN106981374B (en) | Functional graphene oxide modified polymer gel electrolyte and its preparation method and application | |
| CN104795534B (en) | A kind of electrochemical cathode electrode, energy storage device comprising the cathode electrode and preparation method thereof | |
| CN101227015A (en) | Cylinder type lithium ion battery with high power rate and high safety performance | |
| CN104051717B (en) | A kind of polyoxometallic acid lithium salts polymer Li-ion battery electrode material and preparation method thereof | |
| CN110993375B (en) | Method for preparing compact-structure RGO/MXene-sulfuric acid supercapacitor flexible electrode in one step and application thereof | |
| Li et al. | High-performance supercapacitor carbon electrode fabricated by large-scale roll-to-roll micro-gravure printing | |
| CN106710885A (en) | Nickel selenide/carbon nanotube composite nanometer material and preparation and application thereof | |
| CN112421017B (en) | Preparation method of binder-free water-based zinc ion battery positive electrode composite material | |
| CN104377044B (en) | Counterfeit electric-type ultracapacitor composite current collector and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313100 Zhejiang city of Huzhou province Changxing County pheasant emerging urban industrial park Patentee after: Chaowei Power Group Co., Ltd Address before: 313100 Zhejiang city of Huzhou province Changxing County pheasant emerging urban industrial park Patentee before: Chilwee Power Supply Co., Ltd. |