CN102694149B - Manufacturing equipment and manufacturing method for electrode of power type lithium ion battery - Google Patents
Manufacturing equipment and manufacturing method for electrode of power type lithium ion battery Download PDFInfo
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- CN102694149B CN102694149B CN201210186100.9A CN201210186100A CN102694149B CN 102694149 B CN102694149 B CN 102694149B CN 201210186100 A CN201210186100 A CN 201210186100A CN 102694149 B CN102694149 B CN 102694149B
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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
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- 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
Abstract
The invention discloses manufacturing equipment and a manufacturing method for an electrode of a power type lithium ion battery. The manufacturing equipment comprises a vibration disk, a foam metal die, an electrode solid-state filler powder box and foam metal, wherein the foam metal die is arranged on the vibrating disk; the electrode solid-state filler powder box is arranged above the foam metal die; and the foam metal is arranged in the foam metal die. The foam metal with the characteristics of high electric conductivity, high thermal conductivity, large specific surface area, uniform and small through holes and the like is adopted as a current collector, and a skeleton structure of the foam metal is inserted into powdery active substances for pressurization to obtain an electrode plate with strong binding force, so that the active substances difficultly fall, the electric conductivity of the active substances of the electrode is effectively improved, internal resistance is lowered, heat produced by the battery is reduced, radiation is facilitated, and the service life of the battery is prolonged; and in addition, a solid-state active substance is used for directly filling the foam metal without an aqueous solution or a non-aqueous solvent, so that the obtained electrode plate is not required to be baked to remove the solvent, the manufacture period of the battery is shortened, energy consumption is reduced, and production cost is saved.
Description
Technical field
The present invention is manufacturing equipment and the manufacture method thereof of electrode for a kind of power-type lithium ion battery, belongs to the manufacturing equipment of electrode and the renovation technique of manufacture method thereof for power-type lithium ion battery.
Background technology
The problem of environmental pollution that oil shortage and burning fossil energy are brought has strengthened countries in the world the exploitation of the new-energy automobiles such as electric automobile and industrialization is advanced to dynamics.Battery-driven electric automobile and hybrid vehicle, can utilize nuclear power, wind-powered electricity generation and photovoltaic electric power, also can utilize conventional electric power charging at night.This is to reducing automobile to the depending on unduly of fossil fuel, and balancing electric power demand is all significant.The power battery technology that the lithium ion battery of take is representative receives the researchers' of mechanism such as national governments, enterprise, university concern, becomes one of most critical technology of electric vehicle industrialization process.
At present, for capacity, power, the life-span of further raising power-type lithium ion battery, and the problem various countries such as reduce costs and all done large quantity research.The manufacture method of electrode and concrete technology condition are key and the core procedures in lithium ion battery manufacturing technology, not only have influence on the chemical property of battery, also determine the manufacturing cost of battery.The manufacture method of lithium ion cell electrode is that active material is coated to aluminium foil or Copper Foil collection liquid surface at present, then through baking, compressing tablet, section, makes electrode slice.This technology and technique, for compact battery,, for lithium ion battery for the relatively low 3C electric appliances of power stage demand (computer, communication, consumer electronics product), are particularly a kind of efficient modes of production.But the power lithium-ion battery higher for power requirement, life requirements is longer, if still continue to use the mode of production of above-mentioned manufacture pole piece, will there will be following problem: (1) is owing to lacking three-dimensional mechanical fixation between paper tinsel shape collector and cell active materials, such battery in use will occur on pole plate between active material and the deterioration electrically contacting between active material and metal collector very soon, even cause active material to come off, the capacitance loss that causes battery, reduces useful life.(2) adopt coating technique, in active material, need to add the non-electrochemical active component such as conductive agent, adhesive, solvent of larger amt, reduced active material ratio in unit volume electrode slice, the existence of simultaneously a large amount of adhesives has also increased internal resistance, is unfavorable for the performance of battery material and whole battery capacity and power-performance.The caloric value when increase of the internal resistance of cell also directly affects battery charging and discharging, and unfavorable to dispelling the heat, cause that battery temperature is too high and internal temperature of battery is unbalanced, can make the part battery premature failure in motive-power battery heap, cause the violent increase of battery pile maintenance and dead battery replacement cost.(3) due to adhesive, close slurry with having water or nonaqueous solvents in solvent, must be removed through high-temperature baking technique, and along with battery plus-negative plate active material nanometer, porous development trend are more and clearer and more definite, it is more and more difficult that the removal of solvent will become.Therefore wet method film-making technique is more and more higher to the requirement of operational environment, and the energy expending is increasing, and the manufacturing cost of battery also rises straight line.
Owing to there is above problem, significantly improve the pole piece manufacturing process of power-type lithium ion battery, very urgent and necessary.In electrode, the Main Function of collector is to concentrate conduction electron, evenly distributing electric current.Traditional electrode current collecting body is aluminium foil and Copper Foil, has aforementioned disadvantage during for the manufacture of power lithium ion battery electrode sheet.Wherein adopt the foam-metal current collector body of three-dimensional structure to replace aluminium foil and Copper Foil, realize the electrode slice manufacture craft that energy consumption is lower has development potentiality very much.Chinese Patent Application No. be in 200610154100.5 patent application, disclose a kind of by foam metal the collector for lithium rechargeable battery, but continue to use traditional technique full-filling collectors such as slurry, battery plus-negative plate material body of paste is mixed to get in solvent by active material, conductive agent and binding agent etc.Obviously this invention still can not solve above-mentioned wet processing and manufacture three problems that power-type lithium ion battery pole piece faces.
Summary of the invention
The object of the invention is to consider the problems referred to above and provide a kind of reasonable in design, the manufacturing equipment of electrode for convenient and practical power-type lithium ion battery.With the electrode of manufacture of the present invention, can effectively improve the conductivity of electrode active material, reduce internal resistance, reduce battery heat production and be conducive to heat radiation, prolongation power-type lithium ion battery useful life.
Another object of the present invention is to provide a kind of simple for production, the power-type lithium ion battery that production efficiency the is high manufacture method of electrode.The present invention not only shortens the manufacturing cycle of battery, greatly falls low-energy-consumption, and saves the production cost of battery.
Technical scheme of the present invention is: the manufacturing equipment of electrode for power-type lithium ion battery of the present invention, include vibrating disk, foam metal mould, the solid-state inserts powder of electrode case, foam metal, wherein foam metal mould is placed on vibrating disk, the solid-state inserts powder of electrode case is placed in the top of foam metal mould, and foam metal is placed in foam metal mould.
Foam metal after above-mentioned filling is positioned on objective table, and strikes off by scraping blade; Foam metal after above-mentioned striking off is positioned over can be by the sheet mould of the even compacting of foam metal after filling.
Above-mentioned scraping blade is plastics scraping blades, or metal scraping blade, or alloy scraping blade.
The moulding pressure of above-mentioned mould is 80-600 tons/square centimeters.It is upper and lower vibrator that the bottom of above-mentioned vibrating disc is provided with vibrations direction; The material of the solid-state inserts powder of above-mentioned electrode case is plastics, or metal, or metal alloy.
The bottom surface of the solid-state inserts powder of above-mentioned electrode case has through hole, have through hole bottom surface be provided with below the baffle plate of controlling the whereabouts of powder in active material powder case by folding.
The through hole that the bottom surface of the solid-state inserts powder of above-mentioned electrode case has is circular hole, and the spacing between Kong Yukong is 1-5mm, and the diameter of circular hole is 0.5mm-10mm.
The manufacture method of electrode for power-type lithium ion battery of the present invention, comprises the steps:
1) determine the solid state electrode amount of active mass of battery electrode and the current collector sizes of foam metal: according to the Practical manufacturing requirement of electrokinetic cell, determine the consumption of solid state electrode active material and the gauge of foam metal of battery;
2) the solid-state inserts of preparation battery electrode, cutting foam metal: the negative or positive electrode material of battery electrode is solid state electrode active material, solid state electrode active material is uniform and smooth powder, the average grain diameter of powder particle is 5nm-200 μ m, in powder particle, add solid-state conductive agent and solid-state adhesive, and stir and evenly mix the solid-state inserts of composition electrode; Cutting foam metal is to required size, and the length and width size of foam metal determines by the size of foam metal mould, and the length and width size of foam metal, than the little 1-5mm of the size of foam metal mould, guarantees to put into completely wherein;
3) in foam metal, fill the solid-state inserts of electrode: the foam metal of well cutting is placed in to foam metal mould; the solid-state inserts of the above-mentioned electrode of getting ready is packed in the solid-state inserts powder of electrode case; open vibrating disk; open the solid-state inserts powder of electrode case baffle plate; powder spills through bottom surface with holes; vibrating disc keeps vibrations, until the solid-state inserts powder of electrode is filled complete;
4) scrape off unnecessary powder: the foam metal that is filled with the solid-state inserts of electrode is taken out from foam metal mould, be placed on objective table, with scraping blade, the unnecessary powder in foam metal surface after filling is scraped off;
5) compressing: the foam metal after filling is positioned in mould, and the moulding pressure of being arranged to mould according to needed pole piece thickness is 80-600 tons/square centimeters, the foam metal after filling is evenly compacted into thin slice;
6) get sheet and cut into electrode plates: above-mentioned thin slice is taken out from mould, according to actual electrokinetic cell parameter, need to determine pole piece size, by thin slice crosscut with cut into piece, reserved lug position during crosscut.
The specification of above-mentioned foam metal is: PPI:5-80, porosity: 50%-98%.
The solid state electrode active material that the positive pole of above-mentioned battery adopts comprises LiFePO4 (LiFePO
4), ternary (Co, Ni, Mn), LiMn2O4 (LiMnO
2, LiMn
2o
4), phosphoric acid vanadium lithium (Li
3v
2(PO
4)
3), lithium nickelate (LiNiO
2), lithium vanadate (LiV
3o
8) in any one or a few combination, the solid state electrode active material that the negative pole of battery adopts comprises graphite, lithium titanate (Li
4ti
5o
12), any one or a few the combination in silicon based anode material, tin base cathode material.
The present invention adopts foam metal as battery afflux liquid, solid-state inserts is filled and is wherein adopted pressing technology to manufacture power-type lithium ion battery pole piece, have the following advantages: (1) three-dimensional framework structure is interspersed in solid-state inserts powder, there is persistence three-dimensional machinery and bond stress, active material difficult drop-off, for causing the positive and negative pole material (as tinbase and silicon based anode material) of volume gross distortion because removal lithium embedded causes material structure expansion-shrinkage phenomenon during discharging and recharging, have and suppress and rectification deformation effect, thereby the life-span of larger prolongation power-type lithium ion battery.(2) foam metal fibrous bone shelf structure specific area is huge, electricity heat conduction conductance is high, through hole uniform and delicate, active material is filled wherein, and the internal surface area being in contact with it reaches maximization, has significantly shortened the transmission range of electronics, reduced internal resistance, greatly strengthened the large current discharging capability of power-type lithium ion battery, the heat having produced while having reduced heavy-current discharge, also has very great help for rapid heat radiation.(3) network configuration of foam metal uniqueness allows to adopt solid dry powder to fill, the solid-state inserts of electrode is comprised of battery active material, solid conduction agent and solid binder, without adding solvent, therefore directly make pole piece without the baking stage through pressing technology, use, greatly reduce energy consumption.(4) the careful network configuration of above-mentioned foam metal is dispersed throughout in active material, the three-dimensional machinery that adds upper skeleton bonds stress, conductive capability and cohesiveness between active material particle have been improved greatly, reduced the dependence of active material to conductive agent and binding agent, therefore add a small amount of conductive agent and binding agent just can meet the demands.So, do not changing under the prerequisite of cell volume, increasing the available capacity of active material in electrode plates, thereby improving the energy density of battery.
Above-mentioned silica-based high because of theoretical capacity with tin-based material, embedding lithium current potential low and be considered to have great development potentiality lithium ion battery negative material, but owing to taking off, in the cyclic process of embedding lithium, experience serious change in volume (silica-base material volume change: 280%～300%, tin-based material volume change: 100%～300%), producing very large internal stress makes silica-based and macroscopical mechanical stress tin-based material itself be not enough to resist, thereby cause material structure to destroy and mechanical efflorescence, between material granule and particle, between material granule and collector, lose and electrically contact, cause battery capacity to decay rapidly.The present invention uses foam metal as power-type lithium ion battery electrode current collecting body, its three-dimensional careful skeleton structure has strong to electrode material and the macroscopic view of permanence bonds stress, the electrode active material being filled in is wherein had to fixation, and the volume deformation that aforementioned active material is occurred in charge and discharge process has inhibition and cushioning effect.The present invention provides feasibility for silica-based with the enforcement of tin base cathode material in power-type lithium ion battery practical engineering application.
The present invention can effectively improve the conductivity of electrode active material, reduces internal resistance, reduces battery heat production and is conducive to heat radiation, prolongation power-type lithium ion battery useful life; In addition, the present invention has not only shortened the manufacturing cycle of battery, more greatly reduces energy consumption, has saved battery production cost.The present invention is that a kind of design is ingenious, function admirable, manufacturing equipment and the manufacture method thereof of electrode for convenient and practical power-type lithium ion battery.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the solid-state inserts of the foam metal filled electrode of the present invention;
Fig. 2 is the schematic bottom view of the solid-state inserts powder of electrode of the present invention case;
Fig. 3 is the schematic diagram of the solid-state inserts powder of electrode of the present invention case case bottom baffle;
Fig. 4 is the schematic diagram that scraping blade of the present invention scrapes off the unnecessary powder in foam metal surface;
Fig. 5 is the schematic diagram of electrode slice forming of the present invention.
In figure: vibrating disk 1; Foam metal mould 2; The solid-state inserts powder of electrode case 3; The bottom surface 31 of the solid-state inserts powder of electrode case; The solid-state inserts powder of electrode case baffle plate 32; Foam metal 4; Objective table 5; Scraping blade 6; Mould 7.
Embodiment
Embodiment:
The manufacturing equipment of electrode for power-type lithium ion battery of the present invention, include vibrating disk 1, foam metal mould 2, the solid-state inserts powder of electrode case 3, foam metal 4, wherein foam metal mould 2 is placed on vibrating disk 1, the solid-state inserts powder of electrode case 3 is placed in the top of foam metal mould 2, and foam metal 4 is placed in foam metal mould 2.
Foam metal 4 after above-mentioned filling is positioned on objective table 5, and strikes off by scraping blade 6; Foam metal 4 after above-mentioned striking off is positioned over can be by the sheet mould 7 of the even compacting of foam metal 4 after filling.
Above-mentioned scraping blade 6 is plastics scraping blades, or metal scraping blade, or alloy scraping blade.
The moulding pressure of above-mentioned mould 7 is 80-600 tons/square centimeters.It is upper and lower vibrator that the bottom of above-mentioned vibrating disc 1 is provided with vibrations direction; The material of the solid-state inserts powder of above-mentioned electrode case 3 is plastics, or metal, or metal alloy.
The bottom surface 31 of the solid-state inserts powder of above-mentioned electrode case 3 has through hole, have through hole bottom surface 31 be provided with below the baffle plate 32 of controlling the whereabouts of active material powder case 3 interior powder by folding.
The through hole that the bottom surface 31 of the solid-state inserts powder of above-mentioned electrode case 3 has is circular hole, and the spacing between Kong Yukong is 1-5mm, and the diameter of circular hole is 0.5mm-10mm.
Above-mentioned foam metal 4 can be any one in foamed aluminium, foam aluminium alloy, nickel foam, nickel foam alloy, foam copper, foam copper alloy, or foam metal 4 be in metal surface, aluminize, copper facing, nickel plating etc.
The manufacture process embodiment of power type lithium-ion battery anode pole piece and cathode pole piece as follows:
1. the manufacture of power type lithium-ion battery anode pole piece
(1) LiFePO4 (LiFePO
4) positive electrode pole piece
The anodal solid-state inserts composition proportion of table 1
| Project | Active material | Conductive agent | Binding agent |
| Composition | LiFePO 4 | Acetylene black | PVDF |
| Mass ratio | 9.2～10 | 0～0.7 | 0～0.1 |
LiFePO4 (the LiFePO that the average grain diameter of take is 500nm
4) be active material, according to battery capacity requirement, determine active compound lithium iron phosphate (LiFePO
4) consumption and the size of foam metal 4, in the present embodiment, foam metal 4 is foamed aluminium or the surface foam metal of aluminizing.At LiFePO
4in powder, add a little conductive agent and binding agent, form the solid-state inserts of electrode, as shown in table 1, mechanical mixture is even, standby.The foam metal of aluminizing according to length and width size cutting foamed aluminium or the surface of foam metal mould 2, after well cutting, is positioned in foam metal mould 2.Solid-state inserts powder case case bottom baffle 32 closes, solid-state inserts powder is proceeded in solid-state inserts powder case 3, open vibrating disc 1, regulate as required its vibrations power, open baffle plate 32, powder spills and inserts in foamed aluminium or surperficial foam metal 4 of aluminizing through solid-state inserts powder case bottom surface 31, through the up-down vibration of vibrating disk 1, can guarantee the density of filling.End to be filled, solid-state inserts powder case baffle plate 32 closes, taking-up is filled with the foamed aluminium of solid-state inserts or the foam metal 4 of aluminizing in surface, is positioned on objective table 5, with scraping blade 6, wipes gently foamed aluminium or surperficial foam metal of the aluminizing 4 unnecessary powder in surface off.Then put into mould 7 and carry out extrusion forming, the moulding pressure of mould 7 is 80-600 tons/square centimeters, is pressed into 18-22
the thin slice of m.After extrusion forming, take out electrode thin slice, according to the manufacturing specification of power battery electrode pole piece, the pole piece suppressing is carried out to crosscut and cuts, during crosscut, note accurately reserving lug position, should avoid as far as possible pole piece burr phenomenon simultaneously, in case burr punctures barrier film, cause battery short circuit.
(2) LiMn2O4 (LiMn
2o
4) positive electrode pole piece
The anodal solid-state inserts composition proportion of table 2
| Project | Active material | Conductive agent | Binding agent |
| Composition | LiMn 2O 4 | Acetylene black | PVDF |
| Mass ratio | 9.2～10 | 0～0.7 | 0～0.1 |
Take the LiMn2O4 (LiMn of average grain diameter as 5 μ m
2o
4) be active material, according to battery capacity requirement, determine active material LiMn2O4 (LiMn
2o
4) consumption and and the size of foam metal 4, in the present embodiment, foam metal 4 is foam metals of aluminizing in foamed aluminium or surface.At LiMn
2o
4in powder, add a little conductive agent and binding agent, form the solid-state inserts of electrode, as shown in table 2, mechanical mixture is even, standby.Size according to the length and width size cutting foam metal 4 of foam metal mould 2, after well cutting, is positioned in foam metal mould 2.Solid-state inserts powder case case bottom baffle 32 closes, solid-state inserts powder is proceeded in solid-state inserts powder case 3, open vibrating disc 1, regulate as required its vibrations power, open baffle plate 32, powder spills and inserts in foamed aluminium or surperficial foam metal 4 of aluminizing through solid-state inserts powder case bottom surface 31, through the up-down vibration of vibrating disk 1, can guarantee the density of filling.End to be filled, solid-state inserts powder case baffle plate 32 closes, taking-up is filled with the foamed aluminium of solid-state inserts or the foam metal 4 of aluminizing in surface, is positioned on objective table 5, with scraping blade 6, wipes gently foamed aluminium or surperficial foam metal of the aluminizing 4 unnecessary powder in surface off.Then put into mould 7 and carry out extrusion forming, the moulding pressure of mould 7 is 80-600 tons/square centimeters, is pressed into 18-22
the thin slice of m.After extrusion forming, take out electrode thin slice, according to the manufacturing specification of power battery electrode pole piece, the pole piece suppressing is carried out to crosscut and cuts, during crosscut, note accurately reserving lug position, should avoid as far as possible pole piece burr phenomenon simultaneously, in case burr punctures barrier film, cause battery short circuit.
(3) nickle cobalt lithium manganate (LiNi
1/3co
1/3mn
1/3o
2) positive electrode pole piece
The anodal solid-state inserts composition proportion of table 3
| Project | Active material | Conductive agent | Binding agent |
| Composition | LiNi 1/3Co 1/3Mn 1/3O 2 | Acetylene black | PVDF |
| Mass ratio | 9.2～10 | 0～0.7 | 0～0.1 |
Take the nickle cobalt lithium manganate (LiNi of average grain diameter as 15 μ m
1/3co
1/3mn
1/3o
2) be active material, according to battery capacity requirement, determine active material nickle cobalt lithium manganate (LiNi
1/3co
1/3mn
1/3o
2) consumption and the size of foam metal 4, in the present embodiment, foam metal 4 is foamed aluminium or the surface foam metal of aluminizing.At LiNi
1/3co
1/3mn
1/3o
2in powder, add a little conductive agent and binding agent, form the solid-state inserts of electrode, as shown in table 3, mechanical mixture is even, standby.Length and width size cutting foamed aluminium (or foam aluminium alloy) according to foam metal mould 2, after well cutting, is positioned in foam metal mould 2.Solid-state inserts powder case case bottom baffle 32 closes, solid-state inserts powder is proceeded in solid-state inserts powder case 3, open vibrating disc 1, regulate as required its vibrations power, open baffle plate 32, powder spills and inserts in foamed aluminium or foam aluminium alloy through solid-state inserts powder case bottom surface 31, through the up-down vibration of vibrating disk 1, can guarantee the density of filling.End to be filled, the solid-state inserts powder case baffle plate 32 that closes, takes out the foamed aluminium or the foam aluminium alloy that are filled with solid-state inserts, is positioned on objective table 5, with scraping blade 6, wipes gently the unnecessary powder of foamed aluminium or foam aluminium alloy surface off.Then put into mould 7 and carry out extrusion forming, the moulding pressure of mould 7 is 80-600 tons/square centimeters, is pressed into 18-22
the thin slice of m.After extrusion forming, take out electrode thin slice, according to the manufacturing specification of power battery electrode pole piece, the pole piece suppressing is carried out to crosscut and cuts, during crosscut, note accurately reserving lug position, should avoid as far as possible pole piece burr phenomenon simultaneously, in case burr punctures barrier film, cause battery short circuit.
2. the manufacture of a power-type lithium ion battery cathode pole piece
(1) graphite cathode material pole piece
The solid-state inserts composition proportion of table 4 negative pole
| Project | Active material | Binding agent |
| Composition | Graphite | PTFE |
| Mass ratio | 9.8～10 | 0～0.15 |
The graphite (C) that the average grain diameter of take is 300nm is active material, according to battery capacity requirement, determines the size of the consumption of active material C and the foam metal of foam copper or copper coating.In powdered graphite, add a little binding agent, as shown in table 4, because the conductivity of graphite own is good, so without adding with conductive agent, then mechanical mixture is even, form the solid-state inserts of negative pole, standby.According to the length and width size cutting of foam metal mould 2 and the size of foam metal 4, in the present embodiment, foam metal 4 is foam metals of foam copper or copper coating, after well cutting, is placed in foam metal mould 2.Solid-state inserts powder case case bottom baffle 32 closes, solid-state inserts powder is proceeded in solid-state inserts powder case 3, open vibrating disc 1, regulate as required its vibrations power, open baffle plate 32, powder, in the bottom surface 31 of solid-state inserts powder case 3 spills the foam metal 4 of inserting foam copper or copper coating, through the up-down vibration of vibrating disk 1, is guaranteed the density of filling.After end to be filled, active material powder case baffle plate 32 closes, taking-up is filled with the foam copper of active material or the foam metal of copper coating 4, is positioned on objective table 5, wipes the foam metal 4 unnecessary powder in surface of foam copper or copper coating with scraping blade 6 off.Then put into mould 7 and carry out extrusion forming, the moulding pressure of mould 7 is 80-600 tons/square centimeters, is pressed into 8-12
the thin slice of m.After extrusion forming, take out electrode thin slice, according to the manufacturing specification of power-type lithium ion battery electrode plates, the pole piece suppressing is carried out to crosscut and cuts, during crosscut, note accurately reserving lug position, should avoid as far as possible pole piece burr phenomenon simultaneously, in case burr punctures barrier film, cause battery short circuit.
(2) lithium titanate (Li
4ti
5o
12) negative material pole piece
The solid-state inserts composition proportion of table 5 negative pole
| Project | Active material | Conductive agent | Binding agent |
| Composition | Li 4Ti 5O 12 | Super P | PVDF |
| Mass ratio | 9.2～10 | 0～0.7 | 0～0.1 |
Lithium titanate (the Li that the average grain diameter of take is 500nm
4ti
5o
12) be active material, according to battery capacity requirement, determine active material Li
4ti
5o
12consumption and the size of foam copper (or foam metal of copper coating).At Li
4ti
5o
12a little conductive agent of middle interpolation and binding agent, as shown in table 5, then mechanical mixture is even, forms the solid-state inserts of negative pole, standby.According to the size of the length and width size cutting foam metal 4 of foam metal mould 2, in the present embodiment, foam metal 4 is foam metals of foam copper or copper coating, after well cutting, is placed in foam metal mould 2.Solid-state inserts powder case case bottom baffle 32 closes, solid-state inserts powder is proceeded in solid-state inserts powder case 3, open vibrating disc 1, regulate as required its vibrations power, open baffle plate 32, powder, in the bottom surface 31 of solid-state inserts powder case 3 spills the foam metal 4 of inserting foam copper or copper coating, through the up-down vibration of vibrating disk 1, is guaranteed the density of filling.After end to be filled, active material powder case baffle plate 32 closes, taking-up is filled with the foam copper of active material or the foam metal of copper coating 4, is positioned on objective table 5, wipes the foam metal 4 unnecessary powder in surface of foam copper or copper coating with scraping blade 6 off.Then put into mould 7 and carry out extrusion forming, the moulding pressure of mould 7 is 80-600 tons/square centimeters, is pressed into 8-12
the thin slice of m.After extrusion forming, take out electrode thin slice, according to the manufacturing specification of power-type lithium ion battery electrode plates, the pole piece suppressing is carried out to crosscut and cuts, during crosscut, note accurately reserving lug position, should avoid as far as possible pole piece burr phenomenon simultaneously, in case burr punctures barrier film, cause battery short circuit.
(3) silicon based anode material pole piece
The solid-state inserts composition proportion of table 6 negative pole
| Project | Active material | Conductive agent | Binding agent |
| Composition | SiO 2 | Acetylene black | PVDF |
| Mass ratio | 9.2～10 | 0～0.7 | 0～0.1 |
The silicon based anode material that the average grain diameter of take is 500nm is active material, according to battery capacity requirement, determines active material SiO
2consumption and the size of foam copper (or foam copper alloy).At SiO
2a little conductive agent of middle interpolation and binding agent, as shown in table 6, then mechanical mixture is even, forms the solid-state inserts of negative pole, standby.According to the size of the length and width size cutting foam metal 4 of foam metal mould 2, in the present embodiment, foam metal 4 is foam copper or foam copper alloy, after well cutting, is placed in foam metal mould 2.Solid-state inserts powder case case bottom baffle 32 closes, solid-state inserts powder is proceeded in solid-state inserts powder case 3, open vibrating disc 1, regulate as required its vibrations power, open baffle plate 32, powder spills and inserts in foam copper or foam copper alloy through the bottom surface 31 of solid-state inserts powder case 3, through the up-down vibration of vibrating disk 1, guarantees the density of filling.After end to be filled, the active material powder case baffle plate 32 that closes, takes out the foam copper or the foam copper alloy 4 that are filled with active material, is positioned on objective table 5, with scraping blade 6, wipes foam copper or the unnecessary powder of foam copper alloy surface off.Then put into mould 7 and carry out extrusion forming, the moulding pressure of mould 7 is 80-600 tons/square centimeters, is pressed into 8-12
the thin slice of m.After extrusion forming, take out electrode thin slice, according to the manufacturing specification of power-type lithium ion battery electrode plates, the pole piece suppressing is carried out to crosscut and cuts, during crosscut, note accurately reserving lug position, should avoid as far as possible pole piece burr phenomenon simultaneously, in case burr punctures barrier film, cause battery short circuit.
Claims (10)
1. the manufacturing equipment of electrode for a power-type lithium ion battery, it is characterized in that including vibrating disk (1), foam metal mould (2), the solid-state inserts powder of electrode case (3), foam metal (4), objective table (5), scraping blade (6), mould (7), wherein foam metal mould (2) is placed on vibrating disk (1), the solid-state inserts powder of electrode case (3) is placed in the top of foam metal mould (2), foam metal (4) is placed in foam metal mould (2), the length and width size of above-mentioned foam metal (4) is determined by the size of foam metal mould (2), it is upper and lower vibrator that the bottom of vibrating disk (1) is provided with vibrations direction, the bottom surface (31) of the solid-state inserts powder of electrode case (3) has through hole.
2. the manufacturing equipment with electrode according to the power-type lithium ion battery described in claim 1, is characterized in that above-mentioned scraping blade (6) is placed in the side of foam metal (4), can strike off the filler in foam metal (4); Mould (7) can evenly be compacted into thin slice by the filler in above-mentioned foam metal (4).
3. the manufacturing equipment with electrode according to the power-type lithium ion battery described in claim 2, is characterized in that above-mentioned scraping blade (6) is plastics scraping blades, or metal scraping blade.
4. the manufacturing equipment with electrode according to the power-type lithium ion battery described in claim 2, is characterized in that the moulding pressure of above-mentioned mould (7) is 80-600 tons/square centimeters.
5. the manufacturing equipment with electrode according to the power-type lithium ion battery described in claim 1 to 4 any one, is characterized in that the material of the solid-state inserts powder of above-mentioned electrode case (3) is plastics, or metal.
6. the manufacturing equipment with electrode according to power-type lithium ion battery described in claim 5, is characterized in that being provided with by the baffle plate (32) of the whereabouts of the interior powder of the solid-state inserts powder of folding control electrode case (3) of the above-mentioned bottom surface (31) that has a through hole below.
7. according to the power-type lithium ion battery described in claim 5, use the manufacturing equipment of electrode, it is characterized in that the through hole that the bottom surface (31) of the solid-state inserts powder of above-mentioned electrode case (3) has is circular hole, spacing between Kong Yukong is 1-5mm, and the diameter of circular hole is 0.5mm-10mm.
8. the using method with the manufacturing equipment of electrode according to the power-type lithium ion battery described in claim 1, is characterized in that comprising the steps:
1) determine solid state electrode amount of active mass and the current collector sizes of battery electrode: the consumption that requires the solid state electrode active material of definite battery according to the Practical manufacturing of electrokinetic cell, and definite collector employing foam metal (4), and according to the gauge of the definite foam metal (4) of Practical manufacturing requirement of electrokinetic cell;
2) the solid-state inserts of preparation battery electrode, cutting foam metal (4): the negative or positive electrode material of battery electrode is solid state electrode active material, solid state electrode active material is uniform and smooth powder, the average grain diameter of powder particle is 5nm-200 μ m, in powder particle, add solid-state conductive agent and solid-state adhesive, and stir and evenly mix the solid-state inserts of composition electrode; Cutting foam metal
(4) to required size, the length and width size of foam metal (4) is by the size decision of foam metal mould (2), and the length and width size of foam metal (4), than the little 1-5mm of size of foam metal mould (2), guarantees to put into completely wherein;
3) in foam metal (4), fill the solid-state inserts of electrode: the foam metal of well cutting (4) is placed in to foam metal mould (2); the solid-state inserts of the above-mentioned electrode of getting ready is packed in the solid-state inserts powder of electrode case (3); open vibrating disk (1); open the solid-state inserts powder of electrode case baffle plate (32); powder spills through bottom surface with holes (31); vibrating disk (1) keeps vibrations, until the solid-state inserts powder of electrode is filled complete;
4) scrape off unnecessary powder: the foam metal (4) that is filled with the solid-state inserts of electrode is taken out from foam metal mould (2), be placed in objective table (5) upper, with scraping blade (6), the surperficial unnecessary powder of foam metal (4) after filling is scraped off;
5) compressing: the foam metal (4) after filling is positioned in mould (7), the moulding pressure of being arranged to mould (7) according to needed pole piece thickness is 80-600 tons/square centimeters, and the foam metal (4) after filling is evenly compacted into thin slice;
6) get sheet and cut into electrode plates: above-mentioned thin slice is taken out from mould (7), according to actual electrokinetic cell parameter, need to determine pole piece size, by thin slice crosscut with cut into piece, reserved lug position during crosscut.
9. the using method of the manufacturing equipment of electrode for described power-type lithium ion battery according to Claim 8, is characterized in that the specification of above-mentioned foam metal (4) is: PPI:5-80, porosity: 50%-98%.
10. the using method of the manufacturing equipment of electrode for described power-type lithium ion battery according to Claim 8, is characterized in that the solid state electrode active material that the positive pole of above-mentioned battery adopts comprises LiFePO4 LiFePO
4, ternary material LiMn
1/3ni
1/3co
1/3o
2, LiMn2O4 LiMnO
2or LiMn
2o
4, phosphoric acid vanadium lithium Li
3v
2(PO
4)
3, lithium nickelate LiNiO
2, lithium vanadate LiV
3o
8in any one or a few combination, the solid state electrode active material that the negative pole of battery adopts comprises graphite, lithium titanate Li
4ti
5o
12, any one or a few the combination in silicon based anode material, tin base cathode material.
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| CN104241599B (en) * | 2013-06-18 | 2016-08-17 | 山东润峰集团新能源科技有限公司 | A kind of method using dry method feeding rolling techniques to make monomer lithium ion battery |
| CN106885472B (en) * | 2017-03-02 | 2018-12-04 | 北京中能德源能源科技有限公司 | A kind of mechanical anode material of lithium battery dress alms bowl blocking devices |
| CN110492106A (en) * | 2018-05-15 | 2019-11-22 | 深圳市佳得设备科技有限公司 | A kind of three-dimensional porous substrate and its application in dry coating technique |
| CN109647955B (en) * | 2018-12-29 | 2021-05-11 | 长江师范学院 | Sodium ion battery pole piece tabletting equipment |
| CN114008817A (en) * | 2019-06-28 | 2022-02-01 | 富士胶片株式会社 | Method for producing molded body for electrode |
| CN112687830A (en) * | 2020-12-14 | 2021-04-20 | 双登集团股份有限公司 | Method for manufacturing lithium ion battery pole plate |
| CN112952043A (en) * | 2021-03-08 | 2021-06-11 | 上海兰钧新能源科技有限公司 | Preparation method of dry powder pressed brick of lithium ion battery pole piece |
| CN113117976B (en) * | 2021-04-13 | 2022-05-24 | 浙江蔚蓝航盾精密陶瓷科技有限公司 | Manufacturing method of metallized ceramic substrate |
| CN113130844A (en) * | 2021-04-16 | 2021-07-16 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Preparation method of lithium ion battery cell, lithium ion battery and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707831A (en) * | 2005-05-24 | 2005-12-14 | 中国地质大学（武汉） | Lithium cell utilizing foamed nickel material as current-collecting body and producing method thereof |
| CN1921190A (en) * | 2006-09-22 | 2007-02-28 | 任晓平 | Secondary lithium ion battery or group employing foam metal as fluid collector |
| CN102332561A (en) * | 2011-09-21 | 2012-01-25 | 东莞新能源科技有限公司 | Manufacturing method for lithium ion battery pole piece |
| CN202616338U (en) * | 2012-06-07 | 2012-12-19 | 广东工业大学 | Manufacturing device of electrodes for power lithium-ion batteries |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5226435A (en) * | 1975-08-23 | 1977-02-28 | Kogyo Gijutsuin | Battery plate |
-
2012
- 2012-06-07 CN CN201210186100.9A patent/CN102694149B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707831A (en) * | 2005-05-24 | 2005-12-14 | 中国地质大学（武汉） | Lithium cell utilizing foamed nickel material as current-collecting body and producing method thereof |
| CN1921190A (en) * | 2006-09-22 | 2007-02-28 | 任晓平 | Secondary lithium ion battery or group employing foam metal as fluid collector |
| CN102332561A (en) * | 2011-09-21 | 2012-01-25 | 东莞新能源科技有限公司 | Manufacturing method for lithium ion battery pole piece |
| CN202616338U (en) * | 2012-06-07 | 2012-12-19 | 广东工业大学 | Manufacturing device of electrodes for power lithium-ion batteries |
Non-Patent Citations (1)
| Title |
|---|
| JP昭57-12264B2 1982.03.10 * |
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