CN105098134A - Apparatus for drying electrode plate and method for drying the same - Google Patents
Apparatus for drying electrode plate and method for drying the same Download PDFInfo
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- CN105098134A CN105098134A CN201510237436.7A CN201510237436A CN105098134A CN 105098134 A CN105098134 A CN 105098134A CN 201510237436 A CN201510237436 A CN 201510237436A CN 105098134 A CN105098134 A CN 105098134A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides an aapparatus for drying electrode plate and a method for drying the same. The apparatus comprises: a chamber which includes an entrance for receiving a foil coated with a paste and an exit which discharges the foil; a vapor supply unit which is connected to the chamber so as to supply the heated vapor to the inside of the chamber for drying the paste; a discharge unit which is connected to the chamber for pumping out and discharging air from the inside of the chamber; an oxygen sensor unit which is arranged in the chamber for measuring oxygen content of the chamber; and a control unit which, based on the oxygen content measured by the oxygen sensor unit, controls the selection of at least one operation from the vapor supply unit and the discharge unit.
Description
The cross reference of related application
This application requirement is delivered to the rights and interests of the korean patent application 10-2014-0058392 of Korean Intellectual Property Office on May 15th, 2014, and its open entirety is by reference herein incorporated.
Technical field
One or more embodiment of the present invention relates to method and apparatus, more particularly, relates to the method and apparatus for drying electrode plate.
Background technology
To after for the battery lead plate coating coating slurry of battery pack, use the slurry on battery lead plate drying device drying electrode plate.Such battery lead plate drying device can use air-feeding ventilator to blow in drying oven by the air heated by sheath heater, therefore the drying coated slurry to battery lead plate.Such as, the slurry of METHYLPYRROLIDONE (NMP) can be applied to positive electrode plate, and water paste can be applied to negative electrode plate.A large amount of heat is needed to carry out the drying coated water paste to negative electrode plate.Therefore, the battery lead plate drying device operated by hot-air blowing method can use auxiliary sheath heater or infrared lamp in addition.
The battery lead plate drying device operated by hot-air blowing method can comprise air-feeding ventilator, heat and be blown into the sheath heater of the air in drying oven from air-feeding ventilator and discharge the scavenger fan of the gas produced drying oven.When battery lead plate is moved to the entrance of drying oven and moves on in drying oven, the slurry being coated to battery lead plate is dried, and battery lead plate is discharged by the outlet of drying oven.In addition, battery lead plate drying device can comprise the irradiation modules be arranged in drying oven and the dry nozzle be included in irradiation modules.In this case, the surrounding air supplied by air-feeding ventilator can be heated by sheath heater, and can be blown to battery lead plate by the dry nozzle of irradiation modules, so that the drying coated slurry to battery lead plate.Such battery lead plate drying device is configured to the outside of hot-air from drying oven to blow to drying oven.
Summary of the invention
One or more embodiment of the present invention comprises the method and apparatus for drying electrode plate.
Other aspect will partly be set forth in the following description, partly will be apparent from description, or learns by putting into practice the embodiment that proposes.
According to one or more embodiment of the present invention, a kind of device for drying electrode plate comprises: room, comprises for receiving the entrance of the base paper tinsel being coated with slurry and the outlet for discharging base paper tinsel; Steam supply unit, is connected to room, so that inside superheated steam being supplied to room is used for dry slurry; Deliverying unit, is connected to room for from the internal suction of room and Exhaust Gas; Oxygen sensor unit, is arranged in room for the oxygen content in measuring chamber; And control unit, the operation of at least one selected from steam supply unit and deliverying unit is controlled according to the oxygen content measured by oxygen sensor unit.
Before a part for the base paper tinsel being coated with slurry is introduced in indoor, control unit can control steam supply unit to be injected into by superheated steam in room and thus to replace with superheated steam the gas be filled in room.
Said apparatus may further include and is set to pass room for transporting the delivery unit of base paper tinsel from the outside of room, if the oxygen content wherein measured by oxygen sensor unit is equal to or less than first and presets content value, then control unit can control delivery unit to be transported in room by base paper tinsel.
If oxygen sensor unit does not detect oxygen, then control unit can increase the discharge rate by deliverying unit to prevent the gas be filled in room from flowing to the outside of room.
Control unit can control deliverying unit and be equal to or less than to regulate discharge rate and thus to be maintained by the oxygen content measured by oxygen sensor unit the value that second presets content value.
If control unit determines that the oxygen content measured by oxygen sensor unit is greater than second and presets content value, then control unit can control deliverying unit to increase discharge rate.
If control unit determines that the oxygen content measured by oxygen sensor unit may be greater than second and preset content value, then control unit can control steam supply unit to increase the quantity delivered of superheated steam.
Said apparatus may further include and is connected to room for this gas being supplied back the gas circulation unit of the inside of room from the internal suction gas of room.
Gas circulation unit can comprise: the circulation pipe being connected to the top of room from the bottom of room; And be arranged on circulation pipe with the circulation driver element forcing gas to flow in circulation pipe.
Gas circulation unit may further include and is arranged on circulation pipe with the gas-heated unit heated the gas be filled in circulation pipe.
Said apparatus may further include and is arranged on room with the pressure measurement cell of the internal pressure of measuring chamber.
Control unit can control to select from steam supply unit and deliverying unit at least one the internal pressure of the room measured by pressure measurement cell is maintained within the scope of preset pressure.
Steam supply unit can comprise: be connected to the top of room to guide the guiding tube of the superheated steam from external device (ED) supply; Be arranged in guiding tube to control the first valve of the extent of opening of guiding tube; Be arranged on guiding tube to measure the steam temperature sensor of the temperature of the superheated steam in guiding tube; And be arranged on guiding tube with the primary heater heated the superheated steam in guiding tube.
Deliverying unit can comprise: be connected to the bottom of room outwards to guide the discharge pipe of gas; And be arranged on discharge pipe with the discharge driver element forcing gas to flow in discharge pipe.
According to one or more embodiment of the present invention, a kind of method of drying electrode plate comprises: inside superheated steam being supplied to room; Oxygen content in measuring chamber; And by being provided in room by the base paper tinsel being coated with slurry according to the oxygen content in room, drying is carried out to base paper tinsel.
When dry base paper tinsel, if the measured value of the oxygen content in room is equal to or less than storage the first default content value in a control unit, then base paper tinsel can be provided in room.
Said method may further include: the oxygen content after starting dry base paper tinsel in measuring chamber.
Said method may further include: regulate the discharge rate from the gas of the inside of room according to the measured value of the oxygen content in room.
Said method may further include: if the measured value of oxygen content is greater than storage the second default content value in a control unit, then increase the discharge rate of gas.
Said method may further include: the quantity delivered regulating the superheated steam of the inside arriving room according to the measured value of the oxygen content in room.
Accompanying drawing explanation
From the following description of the accompanying drawings of embodiments, these and/or other side will become obvious and be easier to understand, in accompanying drawing:
Fig. 1 shows according to an embodiment of the invention for the schematic diagram of the device of drying electrode plate;
Fig. 2 shows the flow circuit diagram of the device for drying electrode plate shown in Fig. 1;
Fig. 3 shows the block diagram for the control flow check in the device of drying electrode plate shown in Fig. 1;
Fig. 4 shows the perspective view of the electrode assemblie comprising the battery lead plate using the device for drying electrode plate shown in Fig. 1 to manufacture; With
Fig. 5 shows the decomposition diagram of the battery pack comprising the electrode assemblie shown in Fig. 4.
Embodiment
Below with detailed reference to embodiment, the example of embodiment is illustrated in the accompanying drawings, and wherein in full text, identical Reference numeral refers to identical element.In this respect, the present embodiment can have multi-form, and should not be construed as limited to description set forth herein.Therefore, only embodiment is described, to explain each side of this description with reference to figure below.As used herein, term "and/or" comprises any of one or more Listed Items be associated and all combinations.Time before being placed on a row element, what the statement of such as " at least one " was modified is permutation element, instead of modifies the discrete component in these row.In the following description, technical term is only used to explain exemplary embodiment, instead of the order for limiting.The term of singulative can comprise plural form, unless specifically stated otherwise." to comprise " and/or the implication of " comprising " shows element, step, technique, operation and/or equipment, but do not get rid of other element, step, technique, operation and/or equipment.Although will be appreciated that term first and second is used to describe various element in this article, these elements should by the restriction of these terms.Term is only for distinguishing an element and other element.
Fig. 1 shows according to an embodiment of the invention for the schematic diagram of the device 100 of drying electrode plate.Fig. 2 shows the flow circuit diagram of the device 100 for drying electrode plate shown in Fig. 1.Fig. 3 shows the block diagram for the control flow check in the device 100 of drying electrode plate shown in Fig. 1.
Referring to figs. 1 to Fig. 3, battery lead plate drying device 100 can comprise the room 110 with entrance 110a and outlet 110b.To launch and the base paper tinsel M being coated with slurry S can be introduced in room 110 by entrance 110a from roller R, and can discharge from room 110 by outlet 110b.Now, base paper tinsel M can apply slurry S by applicator C.Applicator C can have gap nozzle shape, to be discharged on the whole width of base paper tinsel M by slurry S.When base paper tinsel M is transferred, applicator C can use slurry S coated base paper tinsel M.
Room 110 can be open to surrounding air by entrance 110a and outlet 110b.In detail, base paper tinsel M is continued to send into room 110 by roll-to-roll mode.Now, because the entrance 110a in room 110 and outlet 110b place do not provide additional door or closing structure, surrounding air can flow to the inside of room 110 by entrance 110a and outlet 110b from the outside of room 110, the gas of the inside of room 110 can flow to the outside of room 110 by entrance 110a and outlet 110b from the inside of room 110.
Battery lead plate drying device 100 can comprise and is connected to room 110 superheated steam to be supplied to the steam supply unit 120 of the inside of room 110.Steam supply unit 120 can comprise the top that is connected to room 110 for guiding the guiding tube 121 of the superheated steam from external equipment supply.Such as, guiding tube 121 can be connected to external steam generator 122.Steam generator 122 can comprise any equipment being produced superheated steam by heating water of such as boiler.Steam supply unit 120 can comprise and being arranged in guiding tube 121 to control the first valve 123 of the extent of opening of guiding tube 121.First valve 123 can comprise the valve being configured to any kind controlling the extent of opening of guiding tube 121 in response to external signal of such as electromagnetically operated valve.Steam supply unit 120 can comprise and being arranged on guiding tube 121 to measure the steam temperature sensor 124 of the temperature of the superheated steam in guiding tube 121.Steam supply unit 120 can comprise and being arranged on guiding tube 121 with the primary heater 125 heated the superheated steam in guiding tube 121.Now, primary heater 125 can according to the temperature operation of the superheated steam measured by steam temperature sensor 124.
Battery lead plate drying device 100 can comprise the bottom that is connected to room 110 for from the internal suction of room 110 and the deliverying unit 130 of Exhaust Gas.Deliverying unit 130 can comprise be connected to room 110 bottom for gas being directed to the discharge pipe 131 of the outside of room 110.In addition, deliverying unit 130 can comprise and being arranged on discharge pipe 131 with the discharge driver element 132 forcing gas to flow in discharge pipe 131.Discharge driver element 132 and can comprise exhauster(-tor or suction pump.Exhauster(-tor or pump can with constant pumping rate or the controllable aspiration rate internal suction gases from room 110.When exhauster(-tor or pump are with constant pumping rate intake-gas, deliverying unit 130 can comprise and is arranged on damper (not shown) in discharge pipe 131 or switch valve (not shown).In this case, the switch element that can control extent of opening can be arranged on the porch of damper so that the amount of the amount controlling to flow to the gas of damper and the gas therefore flowed in discharge pipe 131.Alternately, in discharge pipe 131, the amount of the gas of flowing can regulate the extent of opening of discharge pipe 131 to be controlled by using switch valve.But for illustrative purposes, description below will mainly give the situation of wherein discharging driver element 132 and comprising the exhauster(-tor with variable extraction speed.
Battery lead plate drying device 100 can comprise and being arranged in room 110 with the oxygen sensor unit 140 of the oxygen content in measuring chamber 110.Oxygen sensor unit 140 can be same or similar with common oxygen sensor, therefore no longer will provide it at this and describe.
Battery lead plate drying device 100 can comprise the control unit 150 being configured to control the operation of at least one selected from steam supply unit 120 and deliverying unit 130.Such as, control unit 150 can control deliverying unit 130, thus the amount of the gas of discharging from room 110 can be conditioned according to the oxygen content measured by oxygen sensor unit 140, or control unit 150 can control steam supply unit 120, thus the amount being supplied to the superheated steam of room 110 can be conditioned according to the oxygen content measured by oxygen sensor unit 140.In another example, control unit 150 can control deliverying unit 130, thus the amount of the gas of discharging from room 110 can be conditioned according to the oxygen content measured by oxygen sensor unit 140, and with this, control unit 150 can control steam supply unit 120, thus the amount being supplied to the superheated steam of room 110 can be conditioned according to the oxygen content measured by oxygen sensor unit 140.
Battery lead plate drying device 100 can comprise and to be set to from the outside of room 110 through room 110 for transporting the delivery unit 160 of base paper tinsel M.Delivery unit 160 can comprise the transport roller 161 that base paper tinsel M slides and the transport roller driver element 162 being configured to drive transport roller 161 thereon.Transport roller driver element 162 can comprise common motor.
Battery lead plate drying device 100 can comprise and is connected to room 110 and for from the internal suction gas of room 110 and the gas circulation unit 170 of inside this gas being supplied go back to room 110.Gas circulation unit 170 can comprise and is connected to top with the circulation pipe 171 of the gas that will be filled in room 110 from the bottom-boot of room 110 to top from the bottom of room 110.In addition, gas circulation unit 170 can comprise and being arranged on circulation pipe 171 to force the circulation driver element 172 that gas flows in circulation pipe 171.Circulation driver element 172 may be provided as the form of fan or pump.Only for illustrative purposes, description is below provided as the situation of the form of fan by mainly giving wherein circulation driver element 172.In addition, gas circulation unit 170 can comprise and being arranged on circulation pipe 171 with the gas-heated unit 173 heated the gas be filled in circulation pipe 171.Gas-heated unit 173 can comprise the secondary heater 173a being connected to external power source 173b.
Battery lead plate drying device 100 can comprise and being arranged on room 110 with the pressure measurement cell 180 of the internal pressure of measuring chamber 110.Pressure measurement cell 180 can be same or similar with common differential pressure gauge, therefore no longer will provide it at this and describe.
Oxygen content in room 110 can be maintained based on the oxygen content value using oxygen sensor unit 140 to measure the value being equal to or less than fiducial value by battery lead plate drying device 100, even if thus prevent from when deliverying unit 130 or battery lead plate drying device 100 break down occurring burning in room 110.
Hereinafter, the detailed explanation using battery lead plate drying device 100 to manufacture the method for battery lead plate (not shown) will be provided.
In the technique for the manufacture of battery lead plate (not shown), base paper tinsel M can launch from roller R, and can be transported by delivery unit 160.Now, control unit 150 can control delivery unit 160 to adjust the feed rate of base paper tinsel M.
When base paper tinsel M is transported as described above, control unit 150 can control applicator C so that with slurry S coated base paper tinsel M.Then, control unit 150 can stop delivery unit 160, thus the base paper tinsel M being coated with slurry S can not be introduced in room 110.
After this, before the base paper tinsel M being coated with slurry S is introduced in room 110, superheated steam is supplied to the inside of room 110 by control unit 150 by use steam supply unit 120.Now, superheated steam is fed into the inside of room 110 from steam generator 122 by guiding tube 121.
During this technique, control unit 150 can control the extent of opening of guiding tube 121 by use first valve 123.In this case, the operational degree of the first valve 123 can be preset in control unit 150.
When superheated steam is fed into the inside of room 110 by guiding tube 121, the gas be filled in room 110 can be discharged to the outside of room 110 by superheated steam.Now, control unit 150 is by using deliverying unit 130 from the inside Exhaust Gas of room 110, and some gases are discharged to the outside of room 110 by least one selection from entrance 110a and outlet 110b.Therefore, the gas be filled in room 110 can be replaced by the superheated steam supplied from steam supply unit 120.
During this technique, steam temperature sensor 124 can measure the temperature of the superheated steam flowing through guiding tube 121, and measured temperature can be sent to control unit 150.Then, control unit 150 can determine whether the temperature of measured superheated steam is equal to or less than preset temperature value.If determine that the temperature of measured superheated steam is equal to or less than preset temperature value, then control unit 150 can operate primary heater 125 superheated steam is heated to preset temperature value.
In addition, oxygen sensor unit 140 can oxygen content in measuring chamber 110, and measured oxygen content can be sent to control unit 150.Then, control unit 150 can determine whether measured oxygen content is equal to or less than first and presets content value.First presets content value can be stored in control unit 150.If determine that measured oxygen content is equal to or less than first and presets content value, then control unit 150 can operate delivery unit 160 to be moved in room 110 by the base paper tinsel M being coated with slurry S.On the other hand, if measured oxygen content is greater than first preset content value, as mentioned above, then control unit 150 can control from steam supply unit 120 and deliverying unit 130 select at least one in case by superheated steam from steam supply unit 120 be supplied to room 110 and/or by deliverying unit 130 from room 110 Exhaust Gas.
As mentioned above, if the base paper tinsel M being coated with slurry S is introduced in room 110, then control unit 150 can while continued operation steam supply unit 120 and deliverying unit 130 the slurry S of dry base paper tinsel M.Now, control unit 150 can operational cycle driver element 172 gas is supplied go back to the inside of room 110 from the internal suction gas of room 110.Dry in this technique, control unit 150 can control gas-heated unit 173 then this gas is supplied to room 110 to predetermined temperature by the gas-heated flowing through circulation pipe 171.
Due to aforesaid operations, superheated steam can contact the surface of slurry S, and absorbs heat when evaporating from slurry S.By this way, slurry S can be dried.
During this technique, oxygen sensor unit 140 can oxygen content continuously in measuring chamber 110, and measured oxygen content can be sent to control unit 150.Then, control unit 150 can control from deliverying unit 130 and steam supply unit 120 select at least one in case oxygen content is adjusted to be equal to or less than second preset content value.Second presets content value can store in a control unit.Second preset value content value can be about 1% or less, if measured oxygen content is greater than about 1%, then control unit 150 can control deliverying unit 130 to increase the amount of the gas of being discharged by deliverying unit 130.In this case, such as, control unit 150 can control steam supply unit 120 so that thus oxygen content is also adjusted to by the inside more substantial superheated steam being supplied to room 110 be equal to or less than the second default content value.In addition, control unit 150 can control deliverying unit 130, to discharge more substantial gas from the inside of room 110, and thus oxygen content is reduced to be equal to or less than second preset content value.In addition, control unit 150 can control steam supply unit 120 to supply more substantial superheated steam, and controls deliverying unit 130 to discharge more substantial gas, is equal to or less than the second default content value to be reduced to by oxygen content.
Now, the method increasing the amount of the gas of being discharged by deliverying unit 130 can be changed according to the structure of deliverying unit 130.Such as, as mentioned above, if discharge driver element 132 to comprise the exhauster(-tor or pump with constant pumping rate, then control unit 150 increases the amount of the gas of being discharged by deliverying unit 130 by the extent of opening of entrance increasing damper.But if discharge driver element 132 to comprise the exhauster(-tor or pump with variable extraction speed, then control unit 150 increases the amount of the gas of being discharged by deliverying unit 130 by increasing the aspiration rate of discharging driver element 132.
In addition, if the oxygen content measured by oxygen sensor unit 140 is equal to or less than second preset content value, then control unit 150 can control steam supply unit 120 and deliverying unit 130 to maintain oxygen content.
When slurry S described above is dried, the volatile solvent that slurry S comprises can evaporate and flow to the inside of room 110.Volatile solvent can be present in room 110 with evaporating state, and the part being therefore included in the oxygen in the gas of room 110 can be lowered.Especially, along with slurry S is continuously dried, the gas of the such as oxygen of filling in the replaceable room 110 of volatile solvent.By this technique, the content of the flammable volatile solvent in room 110 can be maintained the upper limit being greater than burning, thus can prevent burning.
Oxygen content in battery lead plate drying device 100 can become about 0% by above-mentioned replacement.In this case, namely, if when the oxygen content in the room 110 measured by oxygen sensor unit 140 is about 0%, then control unit 150 can control deliverying unit 130 to increase the amount of the gas of being discharged by deliverying unit 130.
Especially, the pressure difference in the room 110 measured by pressure measurement cell 180 can be continuously transmitted control unit 150.Control unit 150 can control deliverying unit 130, and the pressure difference measured by pressure measurement cell 180 like this can in the scope from-5Pa to-10Pa.In this case, the volatile solvent of evaporation is not discharged by least one selection from the entrance 110a and outlet 110b of room 110.
Therefore, according to the method for above-mentioned drying electrode plate, the content due to volatile solvent is maintained the upper limit being equal to or greater than burning, stably can carry out battery lead plate drying process.
And according to battery lead plate drying means, because battery lead plate drying device 100 is actively controlled according to the oxygen content in room 110, battery lead plate drying device 100 can the energy of consumes least.
In addition, according to battery lead plate drying means, even if the operation of deliverying unit 130 is suspended due to such as mistake, superheated steam is continually fed into the inside of room 110, thus prevents the burning of the volatile solvent in the room 110 caused by the oxygen content increase in room 110.
Fig. 4 shows the perspective view of the electrode assemblie 210 comprising the battery lead plate using the battery lead plate drying device 100 shown in Fig. 1 to manufacture.Fig. 5 shows the decomposition diagram of the battery pack 200 comprising the electrode assemblie shown in Fig. 4.
With reference to figure 4 and Fig. 5, battery pack 200 can comprise tank 201, is contained in the electrode assemblie 210 in tank 201 and is connected to the cover plate 220 of tank 201.Insulation board 230 can be arranged between electrode assemblie 210 and cover plate 220.
Opening is formed in the upside of tank 201, can extend there through be inserted in tank 201 to make electrode assemblie 210.Tank 201 can be formed by the electric conducting material of such as aluminium.Tank 201 can guard electrode assembly 210 from impact, electrode assemblie 210 charging and discharging operation in, tank 201 can be used as heating panel, heat is dispersed into outside from electrode assemblie 210.
Electrode assemblie 210 can comprise the positive electrode plate 211 and negative electrode plate 212 that use the battery lead plate drying device 100 shown in Fig. 1 to be formed, and dividing plate 213 can be arranged between positive electrode plate 211 and negative electrode plate 212.
Positive electrode plate 211 can comprise the positive electrode coated portion 211b being coated with positive electrode active substance and the uncoated part 211c of positive electrode not applying positive electrode active substance.Positive electrode active substance can be lithium chalkogenide or such as LiCoO
2, LiNiO
2, LiMnO
2or LiMnO
4lithium-containing transition metal oxide.Such as, the slurry of positive electrode active substance composition can be applied to a part at least side of aluminium sheet, and the battery lead plate drying device 100 shown in Fig. 1 can be used dried.
Such as, the LiCoO with the average grain diameter of about 5 microns comprising 85 weight portions can be dispersed with in 1-METHYLPYRROLIDONE solvent
2the Kynoar as binding agent with the mixture of powders of 90 weight portions of the active carbon powder of the average grain diameter of about 7.5 microns, the carbon black as conductive agent of 4 weight portions and 6 weight portions of powder and 5 weight portions, to prepare the slurry of positive electrode active substance composition.
Negative electrode plate 212 can comprise the negative electrode coated portion 212b being coated with negative electrode active material and the uncoated part 212c of negative electrode not applying negative electrode active material.Negative electrode active material can be the material with carbon element of such as crystalline carbon, amorphous carbon, carbon complex or carbon fiber, lithium metal or lithium alloy.Such as, the slurry of negative electrode active material composition can be applied to a part at least side of copper coin, and the battery lead plate drying device 100 shown in Fig. 1 can be used dried.
Such as, can disperse in aqueous solvent and mix the styrene butadiene rubbers belonging to binding agent of the soft carbon (by GS Jia Deshi Inc.) of 92 weight portions, the carbon black belonging to conductive agent of 5 weight portions, the carboxymethyl cellulose belonging to thickener of 1 weight portion and 2 weight portions, to form the slurry of negative electrode active material composition.
Such as, dividing plate 213 can be formed by the copolymer coating basement membrane with Kynoar and hexafluoropropylene (PVDF-HFP copolymer).Basement membrane can be selected from the one in the group that is made up of the copolymer of polyethylene (PE), polystyrene (PS), polypropylene (PP) and polyethylene (PE) and polypropylene (PP).
Dividing plate 213, negative electrode plate 212 and positive electrode plate 211 can carry out reeling to form electrode assemblie 210 with coiler.
Such as, electrode assemblie 210 is formed as film shape by heap superimposition winding positive electrode plate 211, dividing plate 213 and negative electrode plate 212.As mentioned above, positive electrode plate 211 and negative electrode plate 212 can use the battery lead plate drying device 100 of the Fig. 1 with high drying efficiency degree to be formed, and therefore, the manufacture efficiency of electrode assemblie 210 can be improved.
Insulation board 230 can comprise the first groove 233 receiving positive electrode lug plate 215 and the second groove 234 receiving negative electrode lug plate 217.In addition, insulation board 230 can be included in the opening 235 of the position away from the first and second grooves 233 and 234, for injecting electrolyte whereby.
Cover plate 220 can be formed by the material identical with the material being used for being formed tank 201, and negative electrode lug plate 217 can be attached to cover plate 220.In addition, electrode terminal 224 can be formed on cover plate 220 and to be connected to positive electrode lug plate 215, and insulator 222 can be arranged between electrode terminal 224 and cover plate 220, for preventing the short circuit between them.
Cover plate 220 is included in the electrolyte inlets 226 of its side.After cover plate 220 is coupled to tank 201, electrolyte is injected in tank 201 by electrolyte inlets 226, and then electrolyte inlets 226 can use plug 228 to be closed.
Therefore, have high-quality and the electrode assemblie 210 manufactured by battery lead plate drying device 100 and battery lead plate drying means because battery pack 200 comprises, battery pack 200 can have the battery efficiency of raising.In addition, electrode assemblie 210 can manufacture with high manufacturing speed, therefore can reduce manufacturing time cycle and the cost of battery pack 200.
As mentioned above, according to one or more embodiment of the present invention, the stability of battery lead plate drying process can be improved.
Should be understood that, exemplary embodiment described herein should be regarded as merely describing significance, instead of the object in order to limit.Usually should be considered to can be used for other similar characteristics in other embodiments or aspect to the description of the feature in each embodiment or aspect.
Although reference diagram describes one or more embodiment of the present invention, it will be appreciated by the skilled addressee that and can carry out various change to form and details, and do not deviate from the spirit and scope of the present invention limited by claim below.
Claims (20)
1., for a device for drying electrode plate, this device comprises:
Room, comprises the entrance for receiving the base paper tinsel being coated with slurry and the outlet for discharging described base paper tinsel;
Steam supply unit, is connected to described room and is used for dry described slurry with inside superheated steam being supplied to described room;
Deliverying unit, is connected to described room, for from the internal suction of described room and Exhaust Gas;
Oxygen sensor unit, is arranged in the chamber, for measuring the oxygen content in described room; With
Control unit, controls the operation of at least one selected from described steam supply unit and described deliverying unit according to the oxygen content measured by described oxygen sensor unit.
2. device according to claim 1, wherein before a part for the described base paper tinsel being coated with slurry is introduced in described indoor, described control unit controls described steam supply unit to be injected into by superheated steam in described room also thus with described superheated steam replacement filling gas in the chamber.
3. device according to claim 1, comprises further and is set to pass described room for transporting the delivery unit of described base paper tinsel from the outside of described room,
If the oxygen content wherein measured by described oxygen sensor unit is equal to or less than first and presets content value, then described control unit controls described delivery unit to be transported in described room by described base paper tinsel.
4. device according to claim 1, if wherein described oxygen sensor unit does not detect oxygen, then described control unit increases by the discharge rate of described deliverying unit to prevent the gas of filling in the chamber from flowing to the outside of described room.
5. device according to claim 1, wherein said control unit controls described deliverying unit and is equal to or less than to regulate discharge rate and thus to be maintained by the oxygen content measured by described oxygen sensor unit the value that second presets content value.
6. device according to claim 5, if wherein described control unit determines that the oxygen content measured by described oxygen sensor unit is greater than described second and presets content value, then described control unit controls described deliverying unit to increase discharge rate.
7. device according to claim 5, if wherein described control unit determines that the oxygen content measured by described oxygen sensor unit is greater than described second and presets content value, then described control unit controls described steam supply unit to increase the quantity delivered of superheated steam.
8. device according to claim 1, comprises further and is connected to described room for described gas being supplied back the gas circulation unit of the inside of described room from the internal suction gas of described room.
9. device according to claim 8, wherein said gas circulation unit comprises:
The circulation pipe at the top of described room is connected to from the bottom of described room; With
Be arranged on described circulation pipe with the circulation driver element forcing gas to flow in described circulation pipe.
10. device according to claim 9, wherein said gas circulation unit comprises further and being arranged on described circulation pipe with the gas-heated unit heated the gas be filled in described circulation pipe.
11. devices according to claim 1, comprise further and being arranged on described room to measure the pressure measurement cell of the internal pressure of described room.
12. devices according to claim 11, wherein said control unit control to select from described steam supply unit and described deliverying unit at least one the internal pressure of the described room measured by described pressure measurement cell is maintained within the scope of preset pressure.
13. devices according to claim 1, wherein said steam supply unit comprises:
Be connected to the top of described room to guide the guiding tube of the superheated steam from external device (ED) supply;
Be arranged in described guiding tube to control the first valve of the extent of opening of described guiding tube;
Be arranged on described guiding tube to measure the steam temperature sensor of the temperature of the superheated steam in described guiding tube; With
Be arranged on described guiding tube with the primary heater heated the superheated steam in described guiding tube.
14. devices according to claim 1, wherein said deliverying unit comprises:
Be connected to the bottom of described room outwards to guide the discharge pipe of gas; With
Be arranged on described discharge pipe with the discharge driver element forcing gas to flow in described discharge pipe.
The method of 15. 1 kinds of drying electrode plates, the method comprises:
Superheated steam is supplied to the inside of room;
Measure the oxygen content in described room; With
By being provided in described room by the base paper tinsel being coated with slurry according to the oxygen content in described room, drying is carried out to described base paper tinsel.
16. methods according to claim 15, wherein when the described base paper tinsel of drying, if the measured value of the oxygen content in described room is equal to or less than storage the first default content value in a control unit, then described base paper tinsel is provided in described room.
17. methods according to claim 15, comprise further: after starting dry described base paper tinsel, measure the oxygen content in described room.
18. methods according to claim 17, comprise further: regulate the discharge rate from the gas of the inside of described room according to the measured value of the oxygen content in described room.
19. methods according to claim 18, comprise further: if the measured value of oxygen content is greater than storage the second default content value in a control unit, then increase the discharge rate of gas.
20. methods according to claim 17, comprise further: the quantity delivered regulating the superheated steam of the inside arriving described room according to the measured value of the oxygen content in described room.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2014-0058392 | 2014-05-15 | ||
| KR1020140058392A KR102257673B1 (en) | 2014-05-15 | 2014-05-15 | Apparatus for drying electrode plate and method for drying the same |
Publications (2)
| Publication Number | Publication Date |
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| CN105098134A true CN105098134A (en) | 2015-11-25 |
| CN105098134B CN105098134B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510237436.7A Active CN105098134B (en) | 2014-05-15 | 2015-05-12 | Method and apparatus for drying electrode plate |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102257673B1 (en) |
| CN (1) | CN105098134B (en) |
| MY (1) | MY185095A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218795A (en) * | 2016-03-22 | 2017-09-29 | 三星Sdi株式会社 | Equipment for drying electrode plate |
| CN113532091A (en) * | 2020-04-17 | 2021-10-22 | Sk新技术株式会社 | Flexible air supply damping system for preventing defects of electrode plates of secondary battery caused by excessive drying |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019059159A1 (en) * | 2017-09-19 | 2019-03-28 | 中部電力株式会社 | Heating device and heating method, each of which uses superheated steam |
| KR101958976B1 (en) * | 2017-10-11 | 2019-07-02 | 주식회사포스코 | Degreasing installation |
| KR20220005110A (en) | 2020-07-06 | 2022-01-13 | 에스케이이노베이션 주식회사 | Drying Method for Electrode Plate of Secondary Battery and Drying System Thereof |
| KR20230073131A (en) * | 2021-11-18 | 2023-05-25 | 주식회사 엘지에너지솔루션 | Apparatus and method for manufacturing electrode |
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| US3943002A (en) * | 1975-02-25 | 1976-03-09 | Esb Incorporated | Device for drying negative plates and plates made therewith |
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| CN113532091B (en) * | 2020-04-17 | 2023-08-25 | Sk新能源株式会社 | Flexible air supply damping system for preventing defects of electrode plates of secondary battery caused by excessive drying |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102257673B1 (en) | 2021-05-28 |
| MY185095A (en) | 2021-04-30 |
| KR20150131561A (en) | 2015-11-25 |
| CN105098134B (en) | 2020-07-28 |
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