CN109248836A - A kind of infra-red radiation lithium battery pole slice coating drying device - Google Patents
A kind of infra-red radiation lithium battery pole slice coating drying device Download PDFInfo
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- CN109248836A CN109248836A CN201710573612.3A CN201710573612A CN109248836A CN 109248836 A CN109248836 A CN 109248836A CN 201710573612 A CN201710573612 A CN 201710573612A CN 109248836 A CN109248836 A CN 109248836A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
- B05D3/0263—After-treatment with IR heaters
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Abstract
The invention discloses a kind of infra-red radiation lithium battery pole slice coating drying devices to be mainly made of top infra-red radiation film, lower section infra-red radiation film, pole piece carrying roller, heat insulating case, adsorption and dehumidification runner, air-introduced machine, electric heater；Compared with existing lithium battery pole slice coating dry technology, convective heat transfer mode is improved, using infrared radiation heat transfer, infrared radiation heat transfer has higher heat exchange efficiency.The Wind Volume circulation for overcoming convective heat transfer mode at the same time forms coating surface layer " skinning " phenomenon with pole coating surface heat exchanging, and use infrared radiation heat transfer mode, the deep layer of lithium battery pole slice coating and surface layer can synchronous formation fuel factor, the effect of deep layer wet part of evaporation synchronous with surface layer, the deep layer of this coating and surface layer synchronize the fuel factor that is formed evaporate the characteristic of wet part, the problem of being avoided that coating pole piece " wet inside and dry outside " and coating surface layer " skinning " plays beneficial effect to performance of lithium ion battery is improved.
Description
Technical field
The present invention relates to the dry dresses of a kind of lithium ion battery manufacturing equipment, especially infra-red radiation lithium battery pole slice coating
It sets.
Background technique
Lithium ion cell electrode, is lithium ion battery key building block, will in lithium ion cell electrode preparation process
What positive and negative electrode micro-nano granules material and adhesive, solvent formed contains liquid slurry, is uniformly coated in copper foil of affluxion body, aluminium
Foil surface forms one layer of solvent-laden coating, then brushes coating surface by hot wind, change coating surface with hot air convection
Heat makes the solvent of coating by thermal evaporation, passes through the moisture or N- methyl pyrrole being heated in evaporative removal wet coating by heat convection
Pyrrolidone organic solvent achievees the purpose that keep coating dry.
But in drying process, hot wind brushes the surface of coating, the solvent of coating surface preferentially with advection heat air heat-exchange,
Preferential evaporation, the solvent of coating surface preferentially evaporate, and the volume total amount of coating surface layer reduces, that is, cause coating surface layer certain
Shrinkage, form shrinkage " skinning " phenomenon, micro-nano positive and negative electrode material solid particles are being transitioned into dry coating from wet coating
The displacement of process also suffers from granule-morphology feature constraint, and when especially distribution of particles differs greatly, the movement of particle cannot
Reach the dense state being most preferably coordinated, forms adhesive and the non-uniform condensed layer of particle, non-uniform condensed layer is in shrinkage
It there is also crackle when " skinning ", coating surface layer is formed after condensation " skinning ", and wet part of coating deep layer has been blocked to blow with hot wind
The heat convection surface layer heat transfer stroked, so that wet part of coating deep layer is difficult to diffuse to surface layer evaporation by heated, which results in
The problem of being coated with pole piece " wet inside and dry outside ", " coating surface layer skinning ".
The problem of being coated with pole piece " wet inside and dry outside ", " coating surface layer skinning ", with working as, rate of drying is faster, and coating surface is molten
The problem of agent evaporation is faster, " wet inside and dry outside ", " coating surface layer skinning " is more prominent.
In addition, the coating that existing hot wind brushes formula heat convection technology is dry, it is desirable that speed is faster, and ventilation quantity is needed to get over
Greatly, need electrical heating power bigger, the problem of " wet inside and dry outside ", " coating surface layer skinning " can also be more prominent, while also bringing energy
The problem of consumption consumption increases.
" coating surface layer skinning " forms solid heat transfer thermal resistance, and not only unfavorable wet part with pole coating mid-deep strata is spread,
Also result in the moisture vaporized expanding of pole coating mid-deep strata, the moisture vaporized expanding of coating mid-deep strata, cause coating paste with
Afflux body interface bulging removing, this bulging removing, causes lithium ion battery internal resistance to increase, performance deterioration.
The competition of lithium ion battery industry reduces cost by controlling energy consumption, increasingly seems important, existing lithium-ion electric
Pond manufacturing process energy consumption occupies totle drilling cost greatly, is mainly reflected in drying process link, lithium battery pole slice quality
Have with dry technology and significantly affects.
Summary of the invention
For existing lithium ion battery manufacture process pole coating dry technology, using big flow hot-air, " hot wind brushes
The carry out heat convection of formula " and pole coating surface reaches moisture or N-Methyl pyrrolidone organic solvent in Coating
Heat temperature rise evaporation is obtained, achievees the purpose that defect present in the dry technical solution of pole coating, proposes a kind of infra-red radiation
Heating means make the moisture in coating directly form fuel factor, and using the moisture in this fuel factor evaporation coating, to reach
To a kind of infra-red radiation lithium battery pole slice coating drying device of electrodes of lithium-ion batteries coating drying purpose.
The drying principles of infra-red radiation lithium battery pole slice coating drying device are, when infra-red radiation device is with 2~18um's
A kind of fuel factor that electromagnetic radiation is converted into after absorbing in hydrone, hydrone.This fuel factor is that hydrone absorption is red
After external radiation energy, the exercise effect of appearance, this exercise effect enhances with the increase for absorbing infrared energy.
Infra-red radiation lithium battery pole slice coating drying device is using the film infrared generator of high-specific surface area as heating
Element generates infra-red radiation, the electrodes of lithium-ion batteries of corresponding Infrared Thin Films infra-red radiation when Infrared Thin Films device is powered
Slurry coating is heated.
Infra-red radiation lithium battery pole slice coating drying device belongs to matching absorption techniques, and matching, which absorbs, refers to film infrared
The heat radiation that device emits, it is consistent with the vibration frequency of hydrone itself is added with selective radiation frequency, draw at this time
The RESONANCE ABSORPTION risen is to match to absorb, and infra-red radiation has certain characteristic for penetrating thin layer, therefore, lithium battery pole slice coating
Deep layer and surface layer can synchronous formation fuel factor so that the effect of deep layer wet part of evaporation synchronous with surface layer.It is this to make
The deep layer of coating and surface layer synchronize the fuel factor that is formed evaporate wet part characteristic, can be formed to avoid coating pole piece in dry link
The problem of " wet inside and dry outside ", coating surface layer " skinning ".
At the same time, matching absorbs heat transfer type, without taking the hot-air " hot wind blows Buddhist " of big flow, infra-red radiation tool
There is certain characteristic for penetrating thin layer, keeps the deep layer of pole coating synchronous with surface layer by thermal evaporation, the deep layer and table of pole coating
Wet part steam of the synchronous evaporation of layer can be spread by aiding in wet part steam compared with little airflow, and lesser air-flow can choose low
Humid air convection current, required low-humidity air use silica gel rotary dehumidifier, and dry air can after the dehumidifying of silica gel rotary dehumidifier
Reach dew point-40 DEG C even lower, and wet part steam of the evaporation of pole coating is in dew point-In 40 DEG C of moving air environment, formed high
The psychrometric difference of the wet psychrometric difference with low humidity, high humidity and low humidity can enhance concentration difference diffusion effect, the psychrometric difference of this high humidity and low humidity
Concentration difference diffusion effect facilitates wet part removing of pole coating, can accelerate the deep layer of pole coating and wet part diffusion on surface layer, from
And drying efficiency is improved, the degree of drying for additionally aiding pole piece improves, and assists wet part diffusion compared with little airflow, is avoided that existing lithium electricity
Pond pole coating shakes interference using big air-flow, keeps coating pole piece mobile steady, can be further improved coating of lithium-ion battery pole
The product quality of piece.
Since hot-air internal circulating load is greatly lowered, so that draught fan matching reduces, the reduction of mating electrically heated power, greatly
Amplitude reduces electric power, so as to play the positive effect for saving emission reduction protection environment, additionally aids lithium ion battery drop
Low cost is improved competitiveness.
Realize technical solution of the present invention
The present invention provides two kinds of embodiments
Embodiment 1
Including installation top infra-red radiation film, lower section infra-red radiation film, lower section infra-red radiation film in heat insulating case
Top position be pole piece carrying roller, be between pole piece carrying roller and top infra-red radiation film coating pole piece channel.
Coating pole piece enters in heat insulating case from heat insulating case right output port, passes through pole piece carrying roller and top infra-red radiation film
Between when, top infra-red radiation film, lower section infra-red radiation film infra-red radiation direct irradiation coating pole piece painting be applied with
Layer.
The humid air outlet connection cool-down dehumidification surface air cooler windward side of heat insulating case, the air side peace of cool-down dehumidification surface air cooler
Air-introduced machine is filled, the runner axial direction cold end face of air-introduced machine and adsorption and dehumidification runner is opposite, the runner axial direction hot end of adsorption and dehumidification runner
Face is installed in opposite directions with electric heater, and air blower is installed in electric heater windward side.The dry air entrance of heat insulating case connects runner shaft
To hot end face.
The top infra-red radiation film, lower section infra-red radiation film are infra-red radiation devices, exhausted by two layers of macromolecule
Edge film forms Sealed sandwich structural membrane, applying conductive coatings between interlayer.Infra-red radiation is formed when conductive coating is powered.
The conductive coating being coated between the interlayer is made of carbon system micro Nano material mixed adhesive.
The carbon system micro Nano material is carbon black, micro-nano graphite composite powder, carbon nano-fiber, carbon nanotube, graphite
Alkene, two kinds therein or three kinds, four kinds of combinations.
Wherein, graphene 50~54% or micro-nano graphite composite powder 50~54%, carbon black 8~10%, carbon nanocoils 5~
7%, adhesive 33~37%, it is preferred that graphene 53%, carbon black 10%, carbon nanocoils 7%, adhesive 30%.
The adhesive is so that conductive materials particle is linked together by the effects of adherency and cohesion, makes isolated point
Scattered conducting particles closely connects, and forms conductive network, plays the role of support construction in conductive coating.Binder can be selected third
Olefin(e) acid resin, Kynoar, phenolic resin, epoxy resin, latex, polyurethane are one of, preferred Kynoar.
The insulating polymeric material film selects pet film, ethyl vinyl acetate second
Enoate copolymer film, poly bis allyl diglycol carbonates film, silicon rubber film, polyimide resin film, asphalt mixtures modified by epoxy resin
Membrane of lipoprotein is one of, preferred pet film film.
The pole piece carrying roller is cylinder-shaped rolls set, and support is coated with pole piece, keeps coating pole piece to move horizontally, avoids applying
Cloth pole piece weighs downwards deformation down.
The dehumidification principle system of the adsorption and dehumidification runner using the silica gel on runner with physical adsorption way at normal temperature
The moisture in air is adsorbed, after adsorption moisture, when runner be heated, moisture evaporation, the silica gel suction after moisture evaporation, on runner
Attached water divides ability to obtain in regeneration, and adsorption and dehumidification runner rotates counterclockwise, and the pressure air-flow blown out by air blower passes through electric heater
Heating, the pressure air-flow after heating pass through adsorption and dehumidification runner, and the pressure air-flow after heating passes through the position of adsorption and dehumidification runner
That is evaporation water, forms silica gel absorption moisture ability recovery area, and adsorption and dehumidification runner continues rotation counterclockwise, adsorption and dehumidification runner
Silica gel absorption moisture ability recovery area i.e. windward come from air-introduced machine pressure air-flow, air-introduced machine pressure air-flow across adsorption and dehumidification turn
The silica gel absorption moisture ability recovery area of wheel, the moisture from air-introduced machine pressure air-flow is adsorbed, to obtain dry air.
The dehumidification principle system of the cool-down dehumidification surface air cooler keeps vapor according to vapor characteristic, nonsaturated air
Partial pressure is constant and reduces temperature, and temperature when making up to saturation state is known as dew point.Temperature is down to dew-point temperature hereinafter, wet
Just there is water droplet precipitation in air.Expansion throttling valve (the expansion throttling valve of cool-down dehumidification surface air cooler refrigerant inlet pipe connection refrigeration system
Do not provided in figure), the refrigerant through expenditure and pressure enters cool-down dehumidification surface air cooler, evaporates in cool-down dehumidification surface air cooler, cool-down dehumidification
Surface air cooler forms surface low-temperature, and the air-flow of induced draft blower withdraws passes through cool-down dehumidification surface air cooler that is, by cool-down dehumidification surface air cooler
Air-flow be lowered temperature and reach saturation state, the moisture in the air-flow of suction is condensed dehumidifying, and the air-flow moisture of suction is cold
Moisture is further removed by the renewing zone of adsorption and dehumidification runner again after solidifying dehumidifying, to obtain the dry air of ultra-low humidity, is being dropped
The refrigerant for the heat that evaporation absorbs in temperature dehumidifying surface air cooler (6) passes through refrigeration machine (not providing in refrigeration machine figure) by refrigerant return pipe
Muffler return in refrigeration machine.
Embodiment 2
Including installation top infra-red radiation film, lower section infra-red radiation film, lower section infra-red radiation film in heat insulating case
Top position be pole piece carrying roller, be between pole piece carrying roller and top infra-red radiation film coating pole piece channel.
Coating pole piece enters in heat insulating case from heat insulating case right output port, passes through pole piece carrying roller and top infra-red radiation film
Between when, top infra-red radiation film, lower section infra-red radiation film infra-red radiation direct irradiation coating pole piece painting be applied with
Layer.
The humid air outlet of heat insulating case connects air-introduced machine, the humid air in induced draft blower withdraws heat insulating case case, heat-insulated machine
The dry air entrance of case connects with electric heater air side, electric heater by the fresh air passed through heat up wet down, fresh air heat up wet down
Enter in heat insulating case case later, heat insulating case then is discharged by induced draft blower withdraws.Induced draft blower withdraws air draft is not only discharged heat-insulated
Cabinet includes wet part air, while also by suction in heat insulating case case, negative pressure in heat insulating case case, the advantageous pole piece that is coated with
Moisture evaporation and diffusion in Coating.
The positive effect of technical solution of the present invention
A kind of infra-red radiation lithium battery pole slice coating drying device technical solution of the present invention and existing lithium battery pole slice apply
Layer dry technology is compared, and using the infrared radiation heat transfer for being different from convective heat transfer mode, infrared radiation heat transfer has higher
Heat transfer efficiency.
Convection current air quantity can be reduced by the technical solution that infra-red radiation improves heat transfer efficiency, with existing Wind Volume convection current
Heat transfer needs big blower power, causes energy consumption big, and Wind Volume recycles in case, can also be excessive due to air velocity, to coating pole
Piece forms flow perturbation, causes coating pole piece movement unstable, leads to the coating pole piece crimping having, wrinkle, infra-red radiation lithium electricity
Pond pole coating drying device, which overcomes existing heat convection, leads to coating surface layer " skinning " phenomenon, and infrared radiation heat transfer keeps lithium electric
The deep layer of pond pole coating and surface layer synchronize the fuel factor that is formed, the effect of deep layer wet part of evaporation synchronous with surface layer, this coating
Deep layer and surface layer synchronize the fuel factor that is formed evaporate the characteristic of wet part, be avoided that coating pole piece " wet inside and dry outside " and coating surface layer
The problem of " skinning ".Beneficial effect is played to performance of lithium ion battery is improved.
Since hot-air internal circulating load is greatly lowered, so that draught fan matching reduces, the reduction of mating electrically heated power, greatly
Amplitude reduces electric power, so as to play the positive effect for saving emission reduction protection environment, additionally aids lithium ion battery drop
Low cost is improved competitiveness.
It is further described below in conjunction with attached drawing
Detailed description of the invention
Fig. 1 is a kind of 1 schematic diagram of infra-red radiation lithium battery pole slice coating drying device system structure embodiment of the present invention；
It is 1 coating pole piece, infra-red radiation film above 2a, infra-red radiation film below 2b, 3 pole piece carrying rollers, 4 heat-insulated in figure
Cabinet, 4-1 heat insulating case right end entrance, the outlet of 4-2 heat insulating case left end, the outlet of 4-3 humid air, 4-4 dry air entrance, 5 are inhaled
Attached desiccant wheel, 5-1 runner axial direction cold end face, the runner axial direction hot end 5-2 face, 6 cool-down dehumidification surface air coolers, 6-1 refrigerant inlet pipe, 6-
2 refrigerant return pipes, 7 air-introduced machines, 8 electric heaters, 9 air blowers.
Fig. 2 is a kind of 2 schematic diagram of infra-red radiation lithium battery pole slice coating drying device system structure embodiment of the present invention；
It is 1 coating pole piece, infra-red radiation film above 2a, infra-red radiation film below 2b, 3 pole piece carrying rollers, 4 heat-insulated in figure
Cabinet, 4-1 heat insulating case right end entrance, the outlet of 4-2 heat insulating case left end, the outlet of 4-3 humid air, 4-4 dry air entrance, 7 are drawn
Blower, 8 electric heaters.
Specific embodiment
Specific embodiment is described in detail below in conjunction with attached drawing
Embodiment 1
As shown in Figure 1, installation top infra-red radiation film 2a, lower section infra-red radiation film 2b, lower section are red in heat insulating case 4
The top position of external radiation film 2b is pole piece carrying roller 3, is coating pole piece between pole piece carrying roller 3 and top infra-red radiation film 2a
1 channel.
Coating pole piece 1 enters in heat insulating case 4 from heat insulating case right output port 4-1, passes through pole piece carrying roller 3 and the infrared spoke in top
When penetrating between film 2a, top infra-red radiation film 2a, lower section infra-red radiation film 2b infra-red radiation direct irradiation be coated with
The Coating of pole piece 1.
The humid air of heat insulating case 4 exports 6 windward side of 4-3 connection cool-down dehumidification surface air cooler, and cool-down dehumidification surface air cooler 6 goes out
Air-introduced machine 7 is installed in wind side, and air-introduced machine 7 and the runner axial direction cold end face 5-1 of adsorption and dehumidification runner 5 are opposite, adsorption and dehumidification runner 5
Runner axial direction hot end face 5-2 and electric heater 8 are installed in opposite directions, and air blower 9 is installed in 8 windward side of electric heater.Heat insulating case 4 is done
Air intake 4-4 connection runner axial direction hot end face 5-2.
Top infra-red radiation film 2a, the lower section infra-red radiation film 2b is infra-red radiation device, by two layers of high score
Insulating sublayer film forms Sealed sandwich structural membrane, applying conductive coatings between interlayer.It is formed when conductive coating is powered infrared
Radiation.
The conductive coating being coated between the interlayer is made of carbon system micro Nano material mixed adhesive.
The carbon system micro Nano material is carbon black, micro-nano graphite composite powder, carbon nano-fiber, carbon nanotube, graphite
Alkene, two kinds therein or three kinds, four kinds of combinations.
Wherein, graphene 50~54% or micro-nano graphite composite powder 50~54%, carbon black 8~10%, carbon nanocoils 5~
7%, adhesive 33~37%, it is preferred that graphene 53%, carbon black 10%, carbon nanocoils 7%, adhesive 30%.
The adhesive is so that conductive materials particle is linked together by the effects of adherency and cohesion, makes isolated point
Scattered conducting particles closely connects, and forms conductive network, plays the role of support construction in conductive coating.Binder can be selected third
Olefin(e) acid resin, Kynoar, phenolic resin, epoxy resin, latex, polyurethane are one of, preferred Kynoar.
The insulating polymeric material film selects pet film, ethyl vinyl acetate second
Enoate copolymer film, poly bis allyl diglycol carbonates film, silicon rubber film, polyimide resin film, asphalt mixtures modified by epoxy resin
Membrane of lipoprotein is one of, preferred pet film film.
The pole piece carrying roller 3 is cylinder-shaped rolls set, and support is coated with pole piece 1, keeps coating pole piece 1 to move horizontally, keeps away
Exempt from coating pole piece 1 and weighs deformation down downwards.
The dehumidification principle system of the adsorption and dehumidification runner 5 using the silica gel on runner with physical adsorption way at normal temperature
The moisture in air is adsorbed, after adsorption moisture, when runner be heated, moisture evaporation, the silica gel suction after moisture evaporation, on runner
Attached water divides ability to obtain in regeneration, and as shown in figure 1 shown in adsorption and dehumidification runner 5, adsorption and dehumidification runner 5 rotates counterclockwise, by air blower 9
The pressure air-flow of blowout, is heated up by electric heater 8, and the pressure air-flow after heating passes through adsorption and dehumidification runner 5, the pressure after heating
Air blast passes through position, that is, evaporation water of adsorption and dehumidification runner 5, forms silica gel absorption moisture ability recovery area, and adsorption and dehumidification turns
Wheel 5 continues rotation counterclockwise, and the silica gel absorption moisture ability recovery area of adsorption and dehumidification runner 5 comes from 7 pressure of air-introduced machine windward
Air-flow, 7 pressure air-flow of air-introduced machine pass through the silica gel absorption moisture ability recovery area of adsorption and dehumidification runner 5, come from 7 pressure of air-introduced machine
The moisture of air-flow is adsorbed, to obtain dry air.
The dehumidification principle system of the cool-down dehumidification surface air cooler 6 keeps vapor according to vapor characteristic, nonsaturated air
Partial pressure is constant and reduces temperature, and temperature when making up to saturation state is known as dew point.Temperature is down to dew-point temperature hereinafter, wet
Just there is water droplet precipitation in air.As shown in fig. 1, the expansion joint of 6 refrigerant inlet pipe 6-1 connection refrigeration system of cool-down dehumidification surface air cooler
Valve is flowed, the refrigerant through expenditure and pressure enters cool-down dehumidification surface air cooler 6, evaporates in cool-down dehumidification surface air cooler 6, cool-down dehumidification surface air cooler
6 form surface low-temperature, and the air-flow that air-introduced machine 7 aspirates passes through cool-down dehumidification surface air cooler 6 that is, by cool-down dehumidification surface air cooler 6
Air-flow is lowered temperature and reaches saturation state, and the moisture in the air-flow of suction is condensed dehumidifying, and the air-flow moisture of suction is condensed
Renewing zone after dehumidifying again by adsorption and dehumidification runner 5 further removes moisture, to obtain the dry air of ultra-low humidity, is cooling down
The refrigerant for the heat for evaporating absorption in dehumidifying surface air cooler 6 returns to refrigeration machine by the muffler of refrigeration machine by refrigerant return pipe 6-2
It is interior.
Embodiment 2
As shown in Fig. 2, installation top infra-red radiation film 2a, lower section infra-red radiation film 2b, lower section are red in heat insulating case 4
The top position of external radiation film 2b is pole piece carrying roller 3, is coating pole piece between pole piece carrying roller 3 and top infra-red radiation film 2a
1 channel.
Coating pole piece 1 enters in heat insulating case 4 from heat insulating case right output port 4-1, passes through pole piece carrying roller 3 and the infrared spoke in top
When penetrating between film 2a, top infra-red radiation film 2a, lower section infra-red radiation film 2b infra-red radiation direct irradiation be coated with
The Coating of pole piece 1.
The humid air of heat insulating case 4 exports 4-3 connection air-introduced machine 7, and air-introduced machine 7 aspirates the humid air in heat insulating case 4 casees,
The dry air entrance 4-4 of heat insulating case 4 connects with 8 air side of electric heater, electric heater 8 by the fresh air passed through heat up wet down,
Enter in heat insulating case 4 casees after fresh air heating wet down, discharge heat insulating case 4 is then aspirated by air-introduced machine 7.Air-introduced machine 7 aspirates
Air draft is not only discharged heat insulating case 4 and includes wet part air, while also by suction in heat insulating case 4 casees, in heat insulating case 4 casees
Negative pressure, the moisture evaporation and diffusion being favorably coated in the Coating of pole piece 1.
Claims (2)
1. a kind of infra-red radiation lithium battery pole slice coating drying device, including top infra-red radiation film (2a), the infrared spoke in lower section
Penetrate film (2b), pole piece carrying roller (3), heat insulating case (4), heat insulating case right end entrance (4-1), heat insulating case left end outlet (4-
2), humid air exports (4-3), dry air entrance (4-4), adsorption and dehumidification runner (5), runner axial direction cold end face (5-1), runner shaft
Add to hot end face (5-2), cool-down dehumidification surface air cooler (6), refrigerant inlet pipe (6-1), refrigerant return pipe (6-2), air-introduced machine (7), electricity
Hot device (8), air blower (9) composition；It is characterized in that installation top infra-red radiation film (2a), lower section are red in heat insulating case (4) case
External radiation film (2b), lower section infra-red radiation film (2b) top position be pole piece carrying roller (3), pole piece carrying roller (3) and top
It is coating pole piece (1) channel between infra-red radiation film (2a)；
The humid air outlet (4-3) of heat insulating case (4) connects cool-down dehumidification surface air cooler (6) windward side, cool-down dehumidification surface air cooler (6)
Air side, install air-introduced machine (7), the runner axial direction cold end face (5-1) of air-introduced machine (7) and adsorption and dehumidification runner (5) in opposite directions, is inhaled
The runner axial direction hot end face (5-2) and electric heater (8) of attached desiccant wheel (5) are installed in opposite directions, electric heater (8) windward side, peace
It fills air blower (9), the dry air entrance (4-4) of heat insulating case (4) connects runner axial direction hot end face (5-2)；
The top infra-red radiation film (2a), lower section infra-red radiation film (2b) are infra-red radiation devices, by two layers of high score
Insulating sublayer film forms Sealed sandwich structural membrane, applying conductive coatings between interlayer；
The conductive coating is made of carbon system micro Nano material mixed adhesive；
The carbon system micro Nano material is carbon black, micro-nano graphite composite powder, carbon nano-fiber, carbon nanotube, graphene,
In two kinds or three kinds, four kinds combination；
Wherein, graphene 50~54% or micro-nano graphite composite powder 50~54%, carbon black 8~10%, carbon nanocoils 5~7% glue
Mixture 33~37%, it is preferred that graphene 53%, carbon black 10%, carbon nanocoils 7%, adhesive 30%；
The adhesive is so that conductive materials particle is linked together by the effects of adherency and cohesion, makes isolated dispersion
Conducting particles closely connects, and forms conductive network, plays the role of support construction in conductive coating.Acrylic acid can be selected in binder
Resin, Kynoar, phenolic resin, epoxy resin, latex, polyurethane are one of, preferred Kynoar；
The insulating polymeric material film selects pet film, ethylene-vinyl acetate
Copolymer film, poly bis allyl diglycol carbonates film, silicon rubber film, polyimide resin film, epoxy resin are thin
Film is one of, preferred pet film film；
The pole piece carrying roller (3) is cylinder-shaped rolls set；
The adsorbent of the adsorption and dehumidification runner (5) uses silica gel；
The expansion throttling valve of cool-down dehumidification surface air cooler (6) refrigerant inlet pipe (6-1) the connection refrigeration system, refrigerant return pipe
The muffler of (6-2) connection refrigeration machine.
2. a kind of infra-red radiation lithium battery pole slice coating drying device according to claim 1, mainly by top infra-red radiation
Film (2a), lower section infra-red radiation film (2b), pole piece carrying roller (3), heat insulating case (4), heat insulating case right end entrance (4-1),
Heat insulating case left end exports (4-2), humid air exports (4-3), dry air entrance (4-4), air-introduced machine (7), electric heater (8) group
At；It is characterized in that installation top infra-red radiation film (2a), lower section infra-red radiation film (2b), lower section in heat insulating case (4) case
The top position of infra-red radiation film (2b) is pole piece carrying roller (3), between pole piece carrying roller (3) and top infra-red radiation film (2a)
It is coating pole piece (1) channel；
Humid air outlet (4-3) connection air-introduced machine (7) of the heat insulating case (4), the dry air entrance of heat insulating case (4)
(4-4) connects with electric heater (8) air side.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645175A (en) * | 2018-05-04 | 2018-10-12 | 北京绿能嘉业新能源有限公司 | A kind of lithium battery pole slice coating infrared radiation drying device |
| CN117463580A (en) * | 2022-07-29 | 2024-01-30 | 比亚迪股份有限公司 | Coating machine oven |
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2017
- 2017-07-14 CN CN201710573612.3A patent/CN109248836A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645175A (en) * | 2018-05-04 | 2018-10-12 | 北京绿能嘉业新能源有限公司 | A kind of lithium battery pole slice coating infrared radiation drying device |
| CN117463580A (en) * | 2022-07-29 | 2024-01-30 | 比亚迪股份有限公司 | Coating machine oven |
| WO2024021934A1 (en) * | 2022-07-29 | 2024-02-01 | 比亚迪股份有限公司 | Coater oven |
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