WO2013154241A1

WO2013154241A1 - Batch-type apparatus and method for drying and transporting electrode plate for secondary battery

Info

Publication number: WO2013154241A1
Application number: PCT/KR2012/009022
Authority: WO
Inventors: 김철영
Original assignee: (주)엠오텍
Priority date: 2012-04-13
Filing date: 2012-10-31
Publication date: 2013-10-17
Also published as: KR101170622B1; CN103378350A

Abstract

The invention relates to a batch-type apparatus for drying an electrode plate for a secondary battery and transporting the dried electrode plate to a process chamber, comprising: two or more electrode plate drying apparatuses (100) for drying electrode plates loaded in a group of two or more electrode plates and discharging the dried electrode plates in a loaded state to a transport pathway (200); and the transport pathway (200) which is connected to outlet doors (D2) of the electrode plate drying apparatuses (100) and includes a conveyor (210) for transporting a plurality of electrode plates (S) loaded in a vertical direction discharged through the outlet doors (D2) to a process chamber (300), wherein the transport pathway (200) is maintained in the state of being shielded from an external space, and is formed to be directly connected to the process chamber (300) via an opening/closing door (310).

Description

Pole plate drying and transfer device and method for collective rechargeable battery

The present invention relates to an electrode plate drying and conveying apparatus and method for a collective secondary battery.

In general, a lot of researches on the production process of a battery and a battery used as a power source of electronic products by the structure of electronic products such as automobiles, portable telephones, video cameras, portable PCs, etc. are lightened or highly functional. Such a battery can be used continuously by charging / discharging.

Generally, nickel cadmium batteries, nickel hydride batteries, nickel zinc batteries, lithium secondary batteries, and the like are used as power sources for electronic products. Among them, lithium secondary batteries have been widely used in consideration of their lifespan and capacity.

The lithium secondary battery is classified into a lithium metal battery, a lithium ion battery, and a lithium polymer battery using a high-volume solid electrolyte according to the type of electrolyte. The lithium secondary battery has a structure in which a unit cell or a bi-cell is stacked, wherein the unit cell has a positive plate / separator / negative plate structure, and the bi-cell has a positive plate / separator / negative plate / separator / positive plate structure.

Generally, a lithium ion secondary battery (henceforth a secondary battery) is manufactured largely by a pole plate manufacturing process, an assembly process, and a chemical conversion process. In the electrode plate manufacturing process, a positive electrode plate and a negative electrode plate are manufactured. First, the positive electrode plate is mainly manufactured by coating an active material on both surfaces of an aluminum foil in a predetermined pattern and thickness, and then drying them under high temperature and vacuum. Here, the active material is mainly lithium cobalt oxide (for example, LiCoO 2), which has a form in which a small amount of a conductive agent and a binder are mixed. In addition, the negative electrode plate is mainly produced by coating the active material on both sides of the copper foil in a predetermined pattern and thickness, and then drying at high temperature and vacuum. In this case, the active material is graphite or carbon, in which a small amount of an additive and a binder are mixed.

Recently, development of a lithium ion polymer battery system is being progressed as a power source of a hybrid electric vehicle (HEV) or an electric vehicle. Such lithium ion polymer batteries are known to have a voltage three times higher than that of Ni-MH (nickel-metal hydride) batteries, and have a very high output at room temperature. Therefore, a lithium ion polymer battery, which is a high power and high density battery, is being developed as a battery capable of supplementing automotive packaging and output characteristics. Looking at the configuration of the electrode plate assembly, which is one of the main components of such a lithium ion polymer battery, the electrode plate assembly includes a positive electrode plate and a negative electrode plate. Looking at the configuration of the electrode plate assembly, which is one of the main components of such a lithium ion polymer battery, the electrode plate assembly includes a positive electrode plate and a negative electrode plate, the positive electrode plate, and the negative electrode plate is usually prepared by mixing the active material, the conductive material and the binder by a wet method. do.

The positive and negative electrode plates that generate electrical energy must be excellent in drying conditions when they are manufactured to facilitate the generation of electrical energy, and when the electrode plates contain impurities such as water, oil and gas. The polarity is irregular or poor depending on the content of water, oil, and impurities, so that the rated energy is not generated, and the recharge state is poor due to the water, oil, or impurities, and the battery life is significantly shortened. Because of the closed stage, drying of the electrode plate has become a very important manufacturing process that influences the life of the battery.

In the drying process of the manufacturing process of the conventional pole plate for secondary batteries described above, if the degree of drying between the pole plates is uneven, and the pole plate is enlarged (for example, A4 size size), such as an electric vehicle battery in one electrode plate There was a problem in that the degree of drying is uneven along the area, the performance of the battery is uneven, leading to quality problems. In addition, when the drying temperature is increased for sufficient drying, the flip may occur due to thermal deformation of the electrode plate, or the binder may be partially dissolved to reduce the adhesive strength between the current collector and the active material.

In particular, in the case of a substrate on which a carbon coating layer is formed, it is difficult to evenly dry the surface from the surface of the coating layer to the inside because carbon has high water absorption and extremely low thermal conductivity. In addition, in the case of the carbon coating layer, the deformation occurs when the temperature inside the drying chamber is 200 ~ 300 ℃ there was a problem that peeling from the current collector.

Patent No. 1017313: Automatic pole plate battery drying apparatus for "battery discharged after performing the drying on the battery pole plate (1) on the body: the front plate of the main body in the transverse direction oppositely installed, the pole plate ( A loading section (10) having a ball roller (11) and a guide roller (12) for guiding corresponding to the length and width of 1); A conveying unit 30 having a driving roller 32 for conveying the pole plate 1 by means of a downstream side of the conveying unit 30, and being dried while the pole plate 1 is transported by the drive roller 41. A drying unit (40) having a heating element (42), and a control unit (50) which is connected to the main components and detects the movement of the electrode plate (1) with a sensor and controls the input and the extraction according to a set sequence; Providing a pole plate automatic drying device for a battery, characterized in that it comprises a. " All.

However, the patent has a problem that as a drying device to dry the pole plates one by one, the utilization of heat is less, the drying efficiency is lowered, the drying time per sheet is longer and the energy for driving the roller, motor by a single sheet is moved a lot. In addition, there is no risk of stigma when moving because there is no linkage configuration.

An object of the present invention is to provide a secondary battery pole plate drying apparatus used in the drying process of the electrode plate for secondary batteries, it is possible to dry uniformly enough not only the surface of the electrode plate coated with the active material (for example, carbon) but also inside the coating layer. The present invention also provides a pole plate drying apparatus for a secondary battery, in which a plurality of pole plates are dried at the same time while the drying variation between the pole plates is small. In addition, even if the electrode plate having a large area of the coated electrode plate is to provide a secondary plate electrode plate drying apparatus and a transfer device that can be uniformly dried in the entire area.

In addition, an object of the present invention is to separate the space (where the electrode plate drying apparatus in the present invention) is carried out by the individual drying operation of the electrode plate and the space (in the present invention, the process chamber) in which the post-electrode drying process (for example, the assembly process) is performed. It is possible to provide a pole plate drying and conveying device for a secondary battery that increases productivity by increasing the utilization of a process chamber in which an apparatus is expensive and forms a large space by increasing the productivity of the system.

In addition, after drying the pole plates constituting the individual groups with the individual pole plate drying device, when the drying is completed, the dried pole plates are put into the transfer passage blocked from the outside, and then dried while maintaining the state of blocking with the outside along the transfer passage to the process chamber It is possible to supply, and the pole plate drying and conveying device for secondary battery which enables the production of high efficiency secondary battery by blocking the inflow of impurities such as moisture, dust, oil, and gas due to contact with external air during transport and process chamber supply. To provide.

In addition, the present invention is to provide a pole plate drying and conveying device for secondary batteries with high energy efficiency by rapidly reducing the heat utilization during the drying, the space Hwaryongseong and the transport energy during transport by grouping the drying and transport unlike the existing patent No. 1017313. In particular, this purpose can find a distinctive purpose in the vehicle secondary battery having a large size.

The electrode plate drying and conveying apparatus for a collective type secondary battery of the present invention is an apparatus for drying the electrode plate for secondary batteries and transporting them to a process chamber.

At least two pole plate drying devices 100 for drying the pole plates loaded into at least two sheets and shipping the dried pole plates in the loaded passage 200;

Conveyor 210 is connected to the exit door (D2) of the pole plate drying apparatus 100 and transfers the plurality of pole plates (S) in the loaded state up and down loaded through the exit door (D2) to the process chamber (300) ) Is provided, and maintains a state of being blocked with the external space, the transfer passage 200 formed to be directly connected to the process chamber 300 and the opening and closing door 310 or; dry plate type secondary battery pole plate, characterized in that consisting of And a conveying device.

According to the present invention to provide a secondary battery pole plate drying apparatus used in the drying process of the electrode plate for secondary batteries, it is possible to dry sufficiently uniformly not only the surface of the electrode plate coated with the active material (for example, carbon) but also inside the coating layer. The present invention also provides a pole plate drying apparatus for a secondary battery, in which a plurality of pole plates are dried at the same time while the drying variation between the pole plates is small. In addition, even if the electrode plate having a large area of the coated electrode plate is provided a secondary plate electrode plate drying apparatus and a transfer device that can be uniformly dried in the entire area.

In addition, according to the present invention, the space in which the individual drying operations of the electrode plates are performed (the electrode plate drying apparatus in the present invention) is separated from the space (in the present invention, the process chamber) in which a process (for example, an assembly process) after the electrode plates is dried. By making it possible to provide, a pole plate drying and conveying apparatus for a secondary battery, which increases productivity by increasing the utilization of a process chamber in which an apparatus is expensive and forms a large space, thereby increasing the overall usability of the system.

In addition, after drying the pole plates constituting the individual groups with the individual pole plate drying device, when the drying is completed, the dried pole plates are put into the transfer passage blocked from the outside, and then dried while maintaining the state of blocking with the outside along the transfer passage to the process chamber Pole plate drying and conveying device for secondary battery which enables the production of high efficiency secondary battery by blocking the inflow of impurities such as moisture, dust, oil, and gas due to contact with external air during transport and process chamber supply. Is provided.

In addition, the present invention, unlike the existing patent No. 1017313, by grouping the drying and transport to reduce the thermal utilization of the drying, space Hwaryongseong and transport energy during transport to provide a pole plate drying and transport device for high energy efficiency. In particular, it can be seen that the effect is obvious in a large vehicle secondary battery.

1 is a structural diagram of a pole plate drying and transporting device for a collective secondary battery according to an embodiment of the present invention. 2 is a structural diagram of a pole plate drying apparatus for a secondary battery according to a first embodiment of the present invention. Figure 3 (a, b) is a structural diagram of a pole plate drying apparatus for a secondary battery according to a second embodiment of the present invention. Figure 4 is an explanatory diagram of a method for drying a pole plate for a secondary battery according to an embodiment of the present invention. 5 is a structural diagram of a pole plate drying apparatus for a secondary battery according to a third embodiment. Figure 6 is a conceptual diagram of a horizontal transfer means provided in the loading unit according to an embodiment of the present invention. 7 to 8 is a flow chart of the dry plate transport method for the secondary battery collective. 9 and 10 are detailed views of the plate receiving portion and the conveyor.

[Description of the code]

10 housing part 11 drying chamber

20: heating means 30: first elevator

31: first loading part 33: first lifting screw

34: first driving nut part 35: first pulley

40: second elevator 41: second loading part

43: second lifting screw 44: second drive nut part

45: second pulley 50: moving means

60: vacuum means 70: cooling means

80: adsorption filter 90: second heating means

S: pole plate R: roller M: auxiliary drive means

100: pole plate drying apparatus 200: transfer passage

210: Kenvey 300: process chamber

In the present invention, the pole plate drying and conveying device for the secondary battery is a device for drying the pole plate for the secondary battery and transporting it to the process chamber, wherein at least two or more sheets of plate plates are dried and the dried pole plates are loaded into the transfer passage 200. At least two pole plate drying apparatuses 100 which are shipped in a sealed state; Conveyor 210 is connected to the exit door (D2) of the pole plate drying apparatus 100 and transfers the plurality of pole plates (S) in the loaded state up and down loaded through the exit door (D2) to the process chamber (300) ) Is provided, and maintains a state of being blocked with the external space, the transfer passage 200 formed to be directly connected to the process chamber 300 and the opening and closing door 310 or; dry plate type secondary battery pole plate, characterized in that consisting of And a conveying device.

Hereinafter, a pole plate drying and conveying apparatus and method for a collective type secondary battery according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a structural diagram of a pole plate drying and transport apparatus for a collective type secondary battery according to an embodiment of the present invention, Figure 2 is a structural diagram of a pole plate drying apparatus for a secondary battery according to a first embodiment of the present invention, Figure 3 (a, b) 4 is a structural diagram of a pole plate drying apparatus for a secondary battery according to a second embodiment of the present invention, FIG. 4 is an explanatory view of a pole plate drying method for a secondary battery according to an embodiment of the present invention, and FIG. 5 is a pole plate drying for a secondary battery according to a third embodiment. 6 is a conceptual diagram illustrating a horizontal transfer means provided in a loading unit according to an embodiment of the present invention, and FIGS. 7 to 9 are flowcharts illustrating a method of drying and transporting a pole plate for a collective secondary battery.

As shown in FIGS. 1 to 6, the electrode plate drying and conveying apparatus for the collective type secondary battery according to the exemplary embodiment of the present invention relates to an apparatus for drying the electrode plate for secondary batteries and transferring them to the process chamber, and the electrode plate drying apparatus 100. And a transfer passage 200 formed to be directly connected to the process chamber 300 and the opening / closing door 310.

As shown in FIGS. 1 to 6, the pole plate drying apparatus 100 includes at least two pole plates that are loaded into at least two or more sheets and dried and shipped dried pole plates in a state of being loaded into the transfer passage 200. do. The detailed configuration and operation method of the electrode plate drying apparatus 100 will be described later.

As shown in FIG. 1, the transfer passage 200 is connected to the outlet doors D2 of the pole plate drying apparatuses 100 and is provided with a plurality of pole plates S loaded up and down in a state of being shipped through the outlet door D2. ) Is provided with a conveyor 210 for transferring the process chamber 300 to maintain a state of being cut off from the external space, and to be directly connected to the process chamber 300 and the opening / closing door 310.

As shown in FIGS. 1 to 6, the electrode plate drying apparatus 100 includes a housing part 10 having a drying chamber 11 shielded from the outside and at least two or more sheets formed on one side of the housing part 10. An inlet door D1 into which stacked pole plates are collectively fed, an exit door D2 configured to be stacked on the other side of the housing part 10 and dried at least two or more sheets of which are shipped, and the drying chamber 11 A first heating means 20 formed at an upper portion of the c) to heat the pole plate S, a first elevator 30 for raising the pole plates S stacked on the first mounting part 31 by a predetermined height, The moving means 50 which moves the uppermost pole plate S among the pole plates loaded of the said 1st elevator 30 to the 2nd elevator 40, and the said moving means 50 from the 1st elevator 30 by The supplied pole plates S are stacked on the second stacking portion 41, and the second stacking portions 41 are stacked at predetermined heights. It is configured to include a second elevator (40) to a river.

In the embodiment of the present invention, as shown in FIGS. 1 to 6 (particularly, FIG. 6), by the first loading part 31 or the second elevator 40 which is lifted by the first elevator 30. At least one stacking unit selected from the second stacking unit 41 which is elevated is preferably provided with a horizontal transfer means that is vertical to the lifting direction of the elevator and horizontally movable in the direction toward the exit door D2.

In the embodiment of the present invention, as shown in FIGS. 2 to 6 (in particular, FIG. 6), by the first loading part 31 or the second elevator 40 which is lifted by the first elevator 30. At least one stacking unit selected from the second stacking unit 41 which is elevated includes a horizontal transport means composed of at least two rotatable rollers (R) and the auxiliary drive means (M2) for rotating the rollers (R) It is desirable to be.

As shown in FIG. 5, in the pole plate drying apparatus 100, the first elevator 30 has a first lifting screw that is lifted in a state in which a screw line is formed on an outer circumferential surface thereof and supports the first mounting part 31. (33), a first drive nut portion (34) for raising and lowering the first elevating screw (33) while being extrapolated and rotated to the first elevating screw (33), and integrally with the first drive nut (34). It is preferably configured to include a first pulley 35 to rotate. The second elevator 40 is extrapolated to the second elevating screw 43 and the second elevating screw 43, which are lifted in a state where a screw line is formed on the outer circumferential surface and supports the second mounting portion 41, and rotates. And a second drive nut portion 44 for elevating and lifting the second elevating screw 43 and a second pulley 45 integrally rotating with the second drive nut portion 44. As shown in FIG. 4, in the pole plate drying apparatus for a secondary battery according to an embodiment of the present invention, the first pulley 35 and the second pulley 45 are the same by the motor 49 and the belt V. FIG. Direction, the first lifting screw 33 and the second lifting screw 43 is preferably a screw thread is formed opposite to rotate in the opposite direction to each other.

In addition, as shown in Figure 6, the auxiliary drive means (M2) is attached to the lower portion of the elevating plate (L) which is raised and lowered integrally with one of the first elevating screw (33) or the second elevating screw (43). It is preferable.

2 to 5, in the pole plate drying apparatus 100 according to an embodiment of the present invention, the first heating means 20 is a movement path for moving the pole plate by the moving means 50 (Loot) ) And higher than the uppermost pole plates of the first and

second elevators

30 and 40 so as to illuminate toward the upper surface of the pole plates, and lower than the route of movement of the pole plates by the moving means 50. It is preferable that the second heating means 90 is provided on the lower surface of the electrode plate further provided.

2 to 5, in the pole plate drying apparatus 100 according to the embodiment of the present invention, the second heating means 90 is disposed between the first elevator 30 and the second elevator 40. It is provided, the moving means 50 is the upper portion of the second heating means 90 of the movement path, so that the second heating means 90 can heat the lower surface of the pole plate being moved to another elevator for a predetermined time It is preferable to stop in the state holding the pole plate for a predetermined time or to be mounted on a cradle located on the upper portion of the second heating means 90 for a predetermined time.

2 to 5, in the electrode plate drying apparatus 100 according to an embodiment of the present invention, when the first elevator 30 is raised, the second elevator 40 is lowered, and vice versa When the first elevator 30 descends, the second elevator 40 rises, and the lifting operation of the first elevator 30 and the second elevator 40 may be performed simultaneously by the same height.

The electrode plate drying apparatus 100 will be described in detail. The housing part 10 is provided with a separate door D for entering and exiting the pole plate, and a drying chamber 11 shielded from the outside by an upper wall part, a side wall part, and a bottom wall part is formed. The housing part 10 may be formed of a plastic or metal material having a conventional door. The heating means 20 is formed above the drying chamber 11. In the present invention, the heating means 20 is preferably a far infrared lamp.

The moving means 50 moves the uppermost pole plate S from the loaded pole plates of the first elevator 30 to the second elevator 40. In the present invention, the moving means 50 is provided at a position higher than the maximum ascending height of the first loading part 31 attached to the first elevator 30 so that the uppermost pole plate S is connected to the adjacent second elevator 40. What is necessary is just a structure which can be moved. Moving means known prior to the filing date of the present invention, which can move a thin, rigid or flexible thin plate in a short distance, are considered to be included in the scope of the present invention. For example, the moving means 50 may be a conventional vacuum suction device having a vacuum means, a control unit for controlling the vacuum means, and a vacuum suction unit 53 connected to the vacuum means. The reciprocating block 52 provided with the vacuum suction unit 53 moves along the horizontal rail 51. In addition, the moving means 50 is a touch bar (not shown) is connected to the piston forward and backward by the pneumatic cylinder, the control unit controls the forward and backward movement of the piston, the touch bar (not shown) of the elevator adjacent to the top plate plate It may be in the form of pushing towards the side.

As shown in FIG. 2 and FIG. 3, the first elevator 30 raises the pole plates S stacked on the first mounting part 31 by a predetermined height. The second elevator 40 loads the pole plates S supplied by the moving means 50 to the second mounting part 41 and lowers the second mounting part 41 by a predetermined height. Thus, the 1st elevator 30 is equipped with the 1st loading part 31 which raises and lowers.

In the present invention, the

elevators

30 and 40 include a loading unit, a guide moving along the loading unit, a driving unit providing power for raising and lowering the loading unit, and a control unit controlling the driving unit. The lifting device structure known before the filing date of the present invention and capable of elevating the loading unit by a predetermined height is considered to be included in the scope of the elevator of the present invention. The control unit (not shown) controls the driving unit (not shown) at the storage time to raise and lower the

loading units

31 and 41 by a predetermined height.

In detail with respect to the

elevators

30 and 40, for example, as shown in Fig. 2, the moving means includes a cylinder, a piston which is lifted inside the cylinder and provided with a magnet, and a magnetic force of the magnet of the piston. It may be a control unit for controlling the pneumatic portion before and after the piston and the piston of the cylinder integrally lifting with the magnet (M). In addition, the moving means controls a screw column that is rotated by the servomotor and the servomotor, a nut part that is inserted into and out of the surface of the screw column and lifts up, a loading part integrated with the nut part, and a servomotor. It may be a control unit.

In the present invention, the vacuum means 60 sucks the air in the drying chamber 11 to make a vacuum of 10 ^-15 ~ 100 Torr. The vacuum means 60 may be a conventional vacuum pump. It is a concept including the conventional well-known means which can drop the inside of the drying chamber 11 below atmospheric pressure. In the embodiment of the present invention, the vacuum means 60 sucks the air in the drying chamber 11 through the connecting pipe (H), the connecting pipe (H) is the intermediate path between the drying chamber 11 and the vacuum means (50) It can be via the cooling means 70 located in.

5 is a structural diagram of a pole plate drying apparatus for a secondary battery according to a third embodiment. As shown in FIG. 5, the connection pipe H may further pass through the adsorption device 80 positioned in the intermediate path between the drying chamber 11 and the vacuum means 50. The adsorption filter 80 may collect adhesives, solvents, solvents, moisture, electrolytes, solvents, and other chemicals used to attach the active material to prevent failure of the vacuum means and to remove harmful substances. The bearing B of FIG. 5 seals between a stationary object and a rotating object and includes known means such as an oil bearing, a fluid seal, and the like.

In the present invention, the predetermined height will be the height occupied by one pole plate and can be generally thick. It is natural that the predetermined time T1 can be appropriately selected by the designer according to the temperature of the heater, the irradiation amount, the size of the drying chamber, the quantity of drying of the electrode plate, the width of the electrode plate, and the degree of drying required.

When drying by the above-described method using the apparatus of the present invention, the electrode plate is subjected to the same temperature conditions and irradiation conditions in a constant time flow to achieve a uniform drying compared to the electrode plate and the electrode plate, and even to a very high temperature in one electrode plate Prototype test results showed that it was possible to achieve a uniform and sufficient drying effect deep into the coating layer for an appropriate drying time without raising.

Hereinafter, with reference to FIGS. 7 to 9, a method of drying and transporting a negative electrode for a collective type secondary battery will be described in detail. First, at step S10 of providing a pole plate drying and transporting device for a collective type secondary battery, at least two or more pole plates loaded into at least two or more sheets are dried and shipped with the dried pole plates loaded into the transfer passage 200. Process chambers are connected to the electrode plate drying apparatuses 100 and the plurality of electrode plates S connected to the exit doors D2 of the electrode plate drying apparatuses 100 and loaded up and down while being shipped through the outlet door D2. Conveyor 210 is provided to transfer to the 300, maintains a state blocked with the external space, characterized in that consisting of the transfer passage 200 formed to be directly connected to the process chamber 300 and the opening and closing door 310 or Provided is a pole plate drying and transfer device for a collective type secondary battery.

Next, the step S20 in which the pole plates stacked in groups of at least two or more sheets through the inlet door D1 of the pole plate drying apparatus 100 is located at the loading part 31 of the first elevator 30, and the drying chamber 11. ) To 10 ^-15 ~ 100 Torr in a vacuum state, and the step (S30) of heating the interior of the drying chamber 11 by the heating means 20 is performed.

Next, the movement means 50 moves the uppermost pole plate of the first loading portion 31 to the second loading portion 41 of the second elevator 40 (S40), and the first elevator 30 A step S50 is performed in which the first mounting part 31 is raised by the predetermined height H1, and the second elevator 40 lowers the second mounting part 41 by the predetermined height H1.

Next, the step (S60) and drying the pole plate for a predetermined time (T1), and the step (S40) and step (S50) until all of the pole plate of the first mounting portion 31 is moved to the second mounting portion 41 And repeating step (S60) (S70), and the drying plate is completed by the horizontal conveying means provided in one of the first stacking portion 31 or the second stacking portion (41) collectively transferred to the transfer passage 200 Shipping step S80 is performed. Finally, step S90 is performed in which the pole plates collectively shipped toward the transfer passage 200 in the state in which at least two or more sheets are stacked up and down enter the process chamber 300 via the conveyor 210.

In the method of drying and transporting a plate type secondary battery pole plate according to an embodiment of the present invention, as shown in FIG. 8, when the first stacking portion 31 lifts the bottom, the moving means 50 again stacks the second. Step (S140) of moving the uppermost pole plate of the portion 41 to the first stacking portion 31 of the first elevator 30, and the first elevator 30 is the first stacking portion 31 by a predetermined height (H1) Lowering), the second elevator 40 raises the second loading part 41 by a predetermined height H1 (S150), drying the electrode plate for a predetermined time T1 (S160), It is further configured to further include the step (S170) of repeating step (S140) and step (S150) and step (S160) until all of the pole plates of the second stacking portion 41 moves to the first stacking portion (31). desirable.

In the method of drying and transporting a plate type secondary battery pole plate according to an embodiment of the present invention, in the step of collectively shipping (S80), when all of the pole plates of the second stacking unit 41 move to the first stacking unit 31. The pole plates loaded on the first stacking unit 31 provided on the first stacking unit 31 are vertically moved in a direction perpendicular to the lifting direction of the elevator and passed through the outlet door D2 by horizontally moving in the direction toward the exit door D2. It is preferably carried out by a method of mass shipping to the passage (200).

In the method for drying and transporting a negative electrode plate for a secondary battery according to an embodiment of the present invention, the moving means 50 may further include a top plate pole plate of the first loading unit 31 and a second loading unit of the second elevator 40. In the middle of the step (S40) to move to 41, the moving means 50 is positioned between the first elevator 30 and the second elevator 40 for a predetermined time, the first elevator ( It is preferable that the second heating means 90 provided between the 30 and the second elevator 40 further comprises heating the pole plate at the bottom of the pole plate.

9 and 10, in the present invention, the conveyor 210 has a pole plate receiving portion 250 for receiving the pole plates shipped through the open cutout 220 and the outlet door (D2) and , The pole plate receiving unit 250 is configured by the receiving means 220 for receiving the pole plate group while being elevated by the vertical lifting means 240 and the vertical lifting means 240. When the pole plates are shipped through the exit door D2 when the conveyor is in a stopped state, the receiving means 220 in the ascending state supports the lower portions of the pole plates and then lowers them to rest on the conveyor.

In step S80, the control valve 67 is opened in a state in which a negative pressure is formed inside the pole plate drying apparatus 100, and the pressure difference between the pole plate drying apparatus 100 and the transfer passage 200 is eliminated. , The conveyor stops, the exit door (D2) is opened, the receiving means 220 ascending proceeds, the horizontal conveying means to move the pole plates toward the receiving means 220, the receiving means 220 is lowered It is preferable to include the step of placing the pole plate on the conveyor. The receiving means 220 is preferably rotated to have an angular displacement vector, such as the conveyor travel direction. For example, the receiving means 220 may be a rotating roller, and the vertical lifting means 240 may be a pneumatic cylinder provided with a piston. The piston of the cylinder pivotally supports the roller (receiving means) via a medium (for example a bearing). The vertical lifting means 240 and the conveyor is controlled by the control unit.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, the scope of the present invention is not limited to these embodiments, and the scope of the present invention is defined by the following claims, and equivalent scope of the present invention. It will include various modifications and variations belonging to. The reference numerals set forth in the claims below are merely to aid the understanding of the present invention, not to affect the interpretation of the scope of the claims, and the scope of the claims should not be construed narrowly.

Claims

In the device for drying the secondary plate for the secondary battery and transported to the process chamber,

At least two pole plate drying devices (100) for drying the plate plates loaded into at least two sheets and discharging the dried plate plates in a state of being loaded into the transfer passage (200);

Conveyor 210 is connected to the exit door (D2) of the pole plate drying apparatus 100 and transfers the plurality of pole plates (S) in the loaded state up and down loaded through the exit door (D2) to the process chamber (300) ) Is provided, and maintains a state of being blocked with the external space, the transfer passage 200 formed to be directly connected to the process chamber 300 and the opening and closing door 310 or;

A pole plate drying and transporting device for a collective type secondary battery, characterized in that consisting of.
According to claim 1, The pole plate drying apparatus 100 is composed of a housing portion 10 is formed on one side of the housing portion 10 and the housing portion 10 is formed with a drying chamber 11 shielded outside and at least two or more stacked plate plates Inlet door (D1) to be introduced into the outlet, the exit door (D2) is formed on the other side of the housing portion 10 and dried at least two or more sheets are shipped to the group, and formed in the upper portion of the drying chamber (11) First heating means 20 for heating the pole plate S,

The first elevator 30 which raises the pole plates S stacked on the first stacking unit 31 by a predetermined height, and the uppermost pole plate S among the pole plates loaded on the first elevator 30 may include a second elevator ( The moving means 50 for moving to 40 and the pole plates S supplied by the moving means 50 from the first elevator 30 are loaded into the second stacking part 41, and the second stacking part 41 is loaded. Secondary elevator 40 for lowering the portion by a predetermined height; pole plate drying and transporting device for a secondary battery characterized in that it comprises a.
According to claim 2, wherein the at least one stack selected from the first stacking unit 31 lifted by the first elevator (30) or the second stacking portion 41 (lifted by the second elevator 40) of the elevator And a horizontal conveying means perpendicular to the lifting direction and horizontally moving in a direction toward the exit door (D2).
The at least one stacking unit selected from the first stacking unit 31 lifted by the first elevator 30 or the second stacking unit 41 lifted by the second elevator 40 is at least one stacking unit. Two or more rotatable rollers (R) and the roller (R) is a plate-type secondary battery pole plate drying and transporting device characterized in that it comprises a horizontal transfer means consisting of an auxiliary drive means (M2) for rotating.
The method of claim 4, wherein the first elevator 30,

A screw thread is formed on an outer circumferential surface of the first elevating screw 33 and the first elevating screw 33 to elevate while supporting the first mounting part 31 and the first elevating screw 33 while being rotated by being inserted out. A first drive nut portion 34 for elevating the elevating screw 33 and a first pulley 35 which is integrally rotated with the first drive nut portion 34;

The second elevator (40) is extrapolated to the second lifting screw (43) and the second lifting screw (43) which are lifted in a state where a screw thread is formed on the outer circumferential surface and supports the second loading part (41). And a second drive nut portion 44 for elevating the second elevating screw 43 while rotating, and a second pulley 45 integrally rotating with the second drive nut portion 44. Auxiliary drive means (M2) is a pole plate for dry secondary battery, characterized in that attached to the lower portion of the elevating plate (L) which is raised and lowered integrally with one of the first elevating screw (33) or the second elevating screw (43). And conveying device.
According to claim 3, The first heating means 20 is located higher than the movement path (Loot) that the pole plate is moved by the moving means 50 and the uppermost pole plates of the first and second elevators (30, 40) A second heating means 90 is further provided to illuminate the upper surface of the electrode plate and to be positioned at a position lower than the movement path where the electrode plate is moved by the moving means 50 to irradiate the lower surface of the electrode plate. And, the second heating means 90 is provided between the first elevator 30 and the second elevator 40, the moving means 50 is the second heating means 90 is moving to another elevator In order to be able to heat the lower surface of the electrode plate in a stationary state for a predetermined time, it is stopped in the state of holding the electrode plate for a predetermined time in the upper portion of the second heating means 90 in the movement path or on the upper portion of the second heating means 90. Collective type, characterized in that for mounting for a predetermined time on the mounted cradle Battery plate feed unit, and dried.
The method of claim 3, wherein when the first elevator 30 is raised, the second elevator 40 is lowered,

On the contrary, when the first elevator 30 descends, the second elevator 40 rises, and the lifting operation of the first elevator 30 and the second elevator 40 is simultaneously performed by the same height. Electrode plate drying and transfer device for the collective type secondary battery.
At least two or more pole plate drying devices 100 for drying the plate plates loaded into at least two sheets and shipping the dried plate plates to the transfer passage 200, and an exit door of the plate plate drying devices 100. The conveyor 210 is connected to the D2) and transfers the plurality of pole plates S in a state loaded up and down loaded through the exit door D2 to the process chamber 300, and is blocked from an external space. Maintaining, and providing a collective type secondary battery pole plate drying and transfer device, characterized in that consisting of a transfer passage 200 formed to be directly connected to the process chamber 300 and the opening and closing door 310 (S10);

A step (S20) in which the pole plates stacked in groups of at least two or more sheets through the inlet door D1 of the pole plate drying apparatus 100 are located in the loading part 31 of the first elevator 30;

Making the drying chamber 11 in a vacuum state of 10 −15 to 100 Torr, and heating the inside of the drying chamber 11 by the heating means 20 (S30);

The moving means 50 moving the uppermost pole plate of the first loading part 31 to the second loading part 41 of the second elevator 40 (S40);

The first elevator 30 raises the first mounting portion 31 by the predetermined height H1, and the second elevator 40 lowers the second mounting portion 41 by the predetermined height H1 (S50). )Wow;

Drying the electrode plate for a predetermined time (T1) (S60);

Repeating step S40, step S50, and step S60 until all of the pole plates of the first mounting part 31 move to the second mounting part 41;

A step (S80) of collectively shipping the dried plate plates to the transfer passage 200 by horizontal transfer means provided in one of the first loading portion 31 or the second loading portion 41;

Collecting shipped plates toward the transfer passage 200 in a state that at least two or more sheets are loaded up and down (S90) to enter the process chamber 300 by the conveyor (210); Method for drying and transporting pole plates for rechargeable secondary batteries.
The first loading part 31 of the first elevator 30 according to claim 8, wherein when the first loading part 31 lifts the floor, the moving means 50 moves the uppermost pole plate of the second loading part 41 again. Moving to (S140); The first elevator 30 lowers the first mounting part 31 by a predetermined height H1, and the second elevator 40 raises the second mounting part 41 by a predetermined height H1 (S150). )Wow; Drying the electrode plate for a predetermined time (T1) (S160); The step (S170) of repeating the step (S140) and step (S150) and step (S160) until all of the pole plates of the second stacking portion 41 moves to the first stacking portion (31); A pole plate drying method for a secondary battery, characterized in that.
The method of claim 9, wherein the group shipping step (S80),

When all of the pole plates of the second stacking portion 41 move to the first stacking portion 31, the pole plates loaded on the first stacking portion 31 provided on the first stacking portion 31 are perpendicular to the lifting direction of the elevator. The horizontal plate moving and the direction toward the exit door (D2) passing through the exit door (D2) and then shipped to the transfer passage 200, the method for drying the plate type secondary battery pole plate characterized in that it is carried out.
10. The method of claim 9, wherein the moving means 50 moves the uppermost pole plate of the first loading part 31 to the second loading part 41 of the second elevator 40 in the middle of the step S40. ,

The moving means 50 locates the pole plate between the first elevator 30 and the second elevator 40 for a predetermined time, and the second heating provided between the first elevator 30 and the second elevator 40. And means (90) for heating the electrode plate at the lower portion of the electrode plate.
According to claim 3, The conveyor 210 is provided with a pole plate receiving portion 250 for receiving the pole plates shipped through the open incision 220 and the exit door (D2), the pole plate receiving portion 250 It is composed of the receiving means 220 for receiving the pole plate group while being moved up and down by the lifting means 240 and the up and down lifting means 240, the pole plates through the exit door (D2) when the conveyor is stationary When shipped, the receiving means 220 in the ascending state of the pole plate drying and transporting device for a secondary battery characterized in that the lower support and lowering the lower plate and placed in the conveyor.
The method of claim 8, wherein the group shipping step (S80), the control valve 67 is opened in a state in which a negative pressure is formed inside the pole plate drying apparatus 100, the pole plate drying apparatus 100 and the transfer passage 200 The pressure difference of the step, the conveyor is stopped, the exit door (D2) is opened, the receiving means 220 is a step of proceeding, the horizontal conveying means to move the pole plates toward the receiving means 220, Wherein the receiving means 220 is lowered to place the pole plates on the conveyor, characterized in that comprises a pole plate drying and conveying apparatus for a secondary battery.
The method of claim 12,

The receiving means 220 is a plate-type secondary battery pole plate drying and transport apparatus, characterized in that to rotate to have an angular displacement vector, such as the conveyor travel direction.