KR102060787B1 - Method of continuous production for bipolar plate for redox flow battery - Google Patents

Abstract

The present invention relates to a continuous production method of a separator plate for a redox flow battery, which can be manufactured to continuously form a separator used for a redox flow battery, thereby easily producing mass and continuously producing a separator plate for a redox flow battery. It is about a method.
The continuous production method of the separator plate for the redox flow battery of the present invention has the advantage of being able to produce a continuously extended separator plate to facilitate mass production and to increase the application efficiency because the restriction on the specifications of the redox flow battery to be produced is small. .
In the continuous production method of a separator plate for a redox flow battery of the present invention, carbon felt is laminated on a sheet formed of a polymer resin, and thus, a filler ratio for preparing a separator can be lowered, and a high performance extruder does not need to be applied. There is an advantage to produce a separator plate having mechanical strength.

Description

Separating process for redox flow battery {Method of continuous production for bipolar plate for redox flow battery}

The present invention relates to a continuous production method of a separator plate for a redox flow battery, which can be manufactured to continuously form a separator used for a redox flow battery, thereby easily producing mass and continuously producing a separator plate for a redox flow battery. It is about a method.

A large-capacity energy storage device is drawing attention as an alternative to overcome the problem of fluctuations in power production and inconsistency in supply and demand. Among them, a redox flow battery is a popular battery.

Redox flow battery is a system in which an active material contained in an electrolyte is charged and discharged by redox (reduction-oxidation), unlike conventional secondary batteries storing electrical energy in electrodes containing active materials. It is an electrochemical power storage device that stores the chemical energy of the active material directly as electrical energy. Active materials that cause redox reactions include V, Fe, Cr, Ti, and Sn, and these metals are dissolved in a strong acid solution and used as electrolytes. Examples of materials used as solvents include sulfuric acid, hydrochloric acid, nitric acid, and lithium secondary batteries. Organic electrolytes, which are stored in external tanks or are located within the stack.

In general, a stack includes a positive electrode cell (manifold) including a positive electrode and a bipolar plate, a negative electrode cell (manifold) and a positive electrode including a negative electrode and a bipolar plate (hereinafter referred to as a 'separator plate'). And an ion exchange membrane separating the cathode cell. A plurality of anode cells and cathode cells can be stacked and used, wherein current collectors and end plates are placed on the outer sides of the outermost anode and cathode cells, respectively.

As the separator should have excellent properties such as high electrical conductivity, mechanical strength, corrosion resistance, and thermal stability, metal, carbon, and carbon composite materials were mainly used, but in the case of the metal separator, corrosion resistance was poor and carbon In the case of the system separator plate, high manufacturing cost and low mechanical strength are problematic, and the separator plate of carbon composite material has a problem of low electrical conductivity.

In order to overcome the problems of the conventional separator, a so-called polymer resin-type separator has been introduced that has a conductive conductivity in a polymer resin such as a thermoplastic resin to have an electric conductivity as a whole.

However, conventional polymer resin type separation plates are generally manufactured by processing after impregnating polymer resin in graphite blocks, and have high electrical conductivity, but are hard and elastic, and have a high production cost. In addition, the method of manufacturing a polymer resin-type separator plate by injection molding can produce only standardized products, and thus, it is difficult to manufacture a mold separately and apply a new product to a large area.

Republic of Korea Patent Publication No. 10-1743924: Separation plate for carbon fiber felt integrated battery and manufacturing method

The present invention is to solve the above problems, by melting the polymer resin in the form of a sheet, and by forming a carbon member formed of carbon such as carbon felt laminated on the sheet to produce a continuous molded separator by press-fusion welding conductive fillers In order to reduce the cost of production and to reduce the production cost and easy to mass production redox flow battery separator plate to provide a continuous production method.

Separator continuous production method for a redox flow battery of the present invention for achieving the above object is a polymer resin raw material is injected into the hopper of the extruder to melt the raw material and transferred to a sheet molding unit installed on the exit side of the extruder A raw sheet forming step of continuously forming a sheet in sheet form; A carbon member formed of a carbon material and continuously extending is wound, and the carbon member is unwound from a carbon member supply unit located above or below the sheet molding unit, and laminated on the sheet discharged from the sheet molding unit. A sheet and carbon member lamination transfer step of continuously transferring the pressure fusion unit having a plurality of heating rollers; The sheet and the carbon member, which are stacked and continuously conveyed, are passed through the heating rollers and pressurized while simultaneously being thermally fused to each other to form a continuous separation plate, and transported to a pressure cooling unit having a plurality of cooling rollers for cooling the separation plate. Pressurized fusion transfer step to; A pressurized cooling transfer step of passing the continuously formed separator plates between the cooling rollers which are rotated adjacent to each other to pressurize and cool and transfer them to the separator winding unit for winding the cooled separator plate; It characterized in that it comprises a continuous formed separator winding step of winding the continuous formed separator drawn out from the pressure cooling unit.

In addition, the separator plate manufacturing apparatus for redox flow battery of the present invention is capable of continuously manufacturing a separator plate for redox flow battery, an extruder for injecting and melting a raw material containing a polymer resin, and installed on the outlet side of the extruder Sheet formed by molding the raw material extruded by the extruder into a continuous sheet-like sheet, and a carbon member formed of a carbon material at a position above or below the sheet forming portion and continuously extended and wound A carbon member supply unit for unwinding the carbon member so as to be continuously stacked on the upper or lower surface of the sheet drawn out from the forming unit, and the carbon member and the sheet stacked adjacent to the sheet forming unit are pressed together and simultaneously A plurality of heating rollers each having a heating means provided therein so as to be heat-sealed to form a separator plate A pressurized cooling unit including a pressurized fusion unit, a plurality of cooling rollers provided with cooling means to pressurize and cool the separator formed by heat fusion at the pressurized fusion unit, and the separation cooled by the pressurized cooling unit. It is characterized by including a separating plate winding unit for winding the plate.

The plurality of heating rollers are the first to third heating rollers which are installed in the direction opposite to each other and are installed adjacent to each other so as to be pressurized and heat-sealed in the multi-stage the carbon member and the sheet is laminated to each other; And fourth to sixth heating rollers arranged in parallel to the first to third heating rollers in a horizontal direction and corresponding to each other in a vertical direction, and adjacent to each other, wherein the plurality of cooling rollers are continuously formed in the pressure fusion unit. First to third cooling, which are parallel to each of the fourth to sixth heating rollers in a horizontal direction and correspond to the vertical direction, are installed adjacent to each other and rotated in opposite directions so that the separator to be melt-formed can be pressurized and cooled in multiple stages. Fourth to sixth rollers and the first to third cooling rollers, which are parallel to each other in the horizontal direction and correspond to each other in the vertical direction, are installed adjacent to each other. A cooling roller is provided.

The continuous production method of the separator plate for the redox flow battery of the present invention has the advantage of being able to produce a continuously extended separator plate to facilitate mass production and to increase the application efficiency because there is less restriction on the specifications of the redox flow battery to be produced. .

In the continuous production method of a separator plate for a redox flow battery of the present invention, carbon felt is laminated on a sheet formed of a polymer resin and thermo-compressed so that the filler ratio for the separator plate can be lowered and a high performance extruder does not need to be applied, thereby lowering the production cost. It is possible to produce a separator having a high mechanical strength.

1 is a partial cross-sectional side view of a manufacturing apparatus for a continuous production method of a separator plate for a redox flow battery of the present invention,
2 is a partial cross-sectional plan view of the manufacturing apparatus of FIG.
Figure 3 is a block diagram of a continuous production method of a separator plate for a redox flow battery of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the continuous production method of the separator plate for redox flow battery according to the present invention.

Prior to the description of the continuous production method of the separator plate for a redox flow battery according to an embodiment of the present invention, the separator plate manufacturing apparatus 1 for the redox flow battery will be described first.

1 to 2 illustrate a separator plate manufacturing apparatus 1 for a redox flow battery according to an exemplary embodiment of the present invention.

Separator manufacturing apparatus 1 for a redox flow battery of the present invention is an extruder 10, a sheet molding portion 30, a carbon member supply portion 40, a pressure fusion unit 50, a pressure cooling unit 70 ) And a separator winding unit 90.

The extruder 10 may include a hopper 11 into which a polymer resin raw material may be introduced, a screw (not shown) to transfer the raw material introduced into the hopper 11 in one direction, and a heater (not shown) to melt the transferred raw material. Is connected to one end of the resin transfer housing 13 and the resin support housing 13 to which the resin transfer housing 13 is installed, the first support frame 14 supporting the resin transfer housing, and the resin transport housing 13 installed on the support frame. The drive pulley is coupled to the first drive motor (15) for transmitting the drive, the drive pulley (16) rotated by the drive of the first drive motor (15), and the screw end protruded with respect to the resin transfer housing (13) It comprises a driven pulley 18 connected to the belt or chain 17 to transfer the rotational force of the drive pulley 16 to the screw 16.

The polymer resin introduced into the hopper 11 may be a thermoplastic resin such as polyethylene, polypropylene, polyphenylene sulfide, polyvinyl difluoride, and liquid crystal polymer.

And, the extruder 10, referring to Figure 1, the auxiliary hopper 12 formed in a width smaller than the hopper 11 to easily adjust the input amount of the polymer resin raw material is provided on the top of the hopper 11, unlike shown It may be applied without the auxiliary hopper 12.

The sheet forming part 30 is applied to a general sheet forming die that can form the melt-transferred raw material into a sheet 3 in the form of a plate.

Referring to FIG. 2, the sheet molding part 30 is connected to the outlet side formed at the other end side of the extruder 10, and is bent in a first direction perpendicular to the longitudinal direction of the resin transfer housing 13 of the extruder 10. And it is connected to the molten raw material discharge portion 19 for transferring the molten raw material in the first direction and continuously molding the sheet 3 in a longitudinal thickness and width of the resin transfer housing (13).

The carbon member supply part 40 is located below the front side of the sheet molding part 30, and is formed of a carbon material and is continuously formed to extend, and the wound carbon member 4 is wound around the rotatable support shaft 41. The second drive motor 43 for transmitting the rotational force for rotating the rotation support shaft 41 and the second support frame 45 for fixing the second drive motor and rotatably supporting the rotation support shaft 41 are provided. ).

The carbon member supply part 40 unwinds the carbon member 4 so that the wound carbon member 4 is laminated on the lower surface of the sheet 3 withdrawn from the sheet molding part 30.

The carbon member 4 may be a general carbon felt formed of a carbon material. For example, the carbon felt may have a carbon-carbon double bond (C = C) and a carbon-oxygen double bond (C = O) functional group formed on a surface thereof in a mesh-like porous structure, and may be applied to polyacrylonitrile ( It can be formed using any one material of the PAN series and Rayon series

The carbon member 4 wound up by the rotation support shaft 41 rotated by the driving force of the second driving motor 43 is seated under the sheet 3 discharged from the sheet forming portion 30. It is unwound side by side in the discharge direction of and is laminated with the sheet 3 to support the sheet 3.

Meanwhile, referring to FIG. 1, the separator plate manufacturing apparatus 1 for a redox flow battery of the present invention is rotatably installed between the sheet molding part 30 and the pressure fusion part 50, and the sheet 3 and the carbon member. The support roller 49 for supporting (4) to be laminated, and the carbon member extended from the carbon member supply part 40 in the direction of the support roller 49 and having a width larger than that of the carbon member 4, above the support roller. Transfer guide plate (not shown) may be provided to guide the transfer to.

The pressure fusion unit 50 is installed adjacent to the sheet molding unit 30 and presses the carbon member 4 and the sheet 3 stacked on each other while simultaneously heat-sealing each other.

The pressure fusion unit 50 corresponds to the vertical direction and is installed adjacent to each other and rotated in the opposite direction, the first to third heating rollers (51, 53, 55) and the heating means (not shown) are built in each, Fourth to sixth heating rollers 57, 59 which are parallel to the first to third heating rollers 51, 53 and 55, respectively, and are installed in the vertical direction and are adjacent to each other, and have heating means built therein. 61).

Pressurized fusion unit 50 is a multi-stage sheet (3) and the carbon member (4) laminated up and down through the first to sixth heating rollers (51, 53, 55, 57, 59, 31) having the same diameter Pressing and fusion form a separator 6 on which the sheet 3 and the carbon member 4 are fused.

The first to sixth heating rollers 51, 53, 55, 57, 59, 61 may be heated on the surface by a heating wire (not shown) built as a heating means, and an internal space capable of supplying hot steam may be provided. It may be applied so that the surface may be heated by the steam supplied from a steam supply (not shown).

Referring to FIG. 1, the first heating roller 51 is rotated counterclockwise to guide the laminated sheets and the carbon member 4 downward. Although not shown, the pressure fusion unit 50 corresponds to the first heating roller so that the sheet 3 and the carbon member 4 stacked on each other may be bent and transferred in the rotational direction of the first heating roller 51. It has an arc-shaped curvature and has a diameter smaller than that of the first heating roller or a guide feather (not shown) spaced apart from the first heating roller by a thickness formed by the laminated sheets and the carbon member, and corresponding to the rotation direction of the first heating roller. A guide roller (not shown) mounted on the side may be provided.

Although not shown, the guide vanes or guide rollers mentioned above are the second to sixth heating rollers 53, 55, 57, 59, 61 and the first to sixth cooling rollers 71, 72, and 73, which will be described later. It may be applied to the side corresponding to the rotation direction of the, 74, 75, 76, respectively.

The second heating roller 53 is positioned vertically below the first heating roller 51 and rotates clockwise to continuously connect the first and second heating rollers 51 and 53 together with the first heating roller 51. Pressurized by the laminated sheet 3 and the carbon member 4 passing through the heat-sealed. The third heating roller 55 is positioned vertically below the second heating roller 52 and rotates counterclockwise so that the third heating roller 55 is disposed between the second and third heating rollers 53 and 55 together with the second heating roller 53. Secondarily pressurizing and heat-sealing the laminated sheet 4 and the carbon member 4 which pass continuously. The fourth heating roller 57 is installed side by side in the horizontal direction to the third heating roller 55 and rotated in the same direction as the third heating roller 55 to press the second and third heating rollers (53, 55). The fused sheet 3 and the carbon member 4 flow into the upper surface. The fifth heating roller 59 is installed above the fourth heating roller 57 and is rotated in a direction opposite to the rotation direction of the fourth heating roller 57 so that the fourth heating roller 59 and the fourth heating roller 57 together with the fourth heating roller 57. The laminated sheet 3 and the carbon member 4 which pass continuously between the five heating rollers 53 and 55 are subjected to the third pressurization and heat fusion. The sixth heating roller 61 is installed above the fifth heating roller 59 and is rotated in a direction opposite to the rotation direction of the fifth heating roller 59 so that the sixth heating roller 61 together with the fifth heating roller 59 The laminated sheet 3 and the carbon member 4 which pass continuously between the six heating rollers 59 and 61 are subjected to the fourth pressure and heat-sealed.

Rotation of the first to sixth heating rollers (51, 53, 55, 57, 59, 61) is a first roller driving motor (not shown) for rotation to at least one of the first to sixth heating roller The rotating shafts of the remaining heating rollers may be connected to the rotating shafts of any one of the heating rollers provided with the first roller driving motor. Alternatively, the rotation of the first to sixth heating rollers (51, 53, 55, 57, 59, 61) is the feed force of the sheet extruded from the sheet forming portion without a separate driving means, and the rotation support shaft of the carbon member supply portion ( 45, the sheet 3 and the carbon member 4 by the feed force of the carbon member supplied by the 45 and the rotational force of the winding shaft 93 connected to the third drive motor 95 of the separating plate winding 91 which will be described later. Can be made by the force pulling to the separation plate winding 90 side.

The pressure cooling unit 70 includes first to sixth cooling rollers 71, 72, 73, 74, 75 having cooling means provided to cool the separator 6 formed by heat fusion in the pressure welding unit 50. 76).

The pressurized cooling unit 50 corresponds to the vertical direction and is installed adjacent to each other and rotated in opposite directions, and the first to third cooling rollers (71, 72, 73) each having a cooling means (not shown) therein, respectively, Fourth to sixth cooling rollers 74 and 75 which are parallel to the first to third cooling rollers 71, 72 and 73 in the horizontal direction and correspond to each other in the vertical direction and are installed adjacently and each having cooling means therein. 76).

Although not shown, the pressurized cooling unit 70 is a cooling means, and a refrigerant storage tank for storing refrigerant for cooling the first to sixth cooling rollers 71, 72, 73, 74, 75, and 76, and a refrigerant. A plurality of refrigerant supply pipe for supplying the refrigerant in the storage tank to the cooling flow path formed in the first to sixth cooling rollers (71, 72, 73, 74, 75, 76), and the refrigerant supply pipe is installed on one side to pump the refrigerant A pump and a circulation pipe for circulating the refrigerant passing through the cooling passages of the first to sixth cooling rollers to the refrigerant suiting tank may be provided, but the first to the sixth cooling rollers (71, 72, 73, 74, 75, It is not limited to the structure shown if it can cool 76).

Referring to FIG. 1, the first cooling roller 71 is rotated counterclockwise to support downwardly the heat-sealed separator formed from the sixth heating roller 61. The second cooling roller 72 is positioned vertically below the first cooling roller 71 and rotates clockwise so that the second cooling roller 72 is continuously connected between the first and second cooling rollers 71 and 72 together with the first cooling roller 71. Cooling while pressing the fusion formed separator plate 6 passing through. The third cooling roller 73 is positioned vertically below the second cooling roller 72 and rotates counterclockwise so that the third cooling roller 73 is disposed between the second and third cooling rollers 72 and 73 together with the second cooling roller 72. Secondly pressurized and cooled the fusion formed separator plate 6 which passes continuously. The fourth cooling roller 74 is installed side by side in the horizontal direction to the third cooling roller 73 and rotated in the same direction as the third cooling roller 73 to press the second and third cooling rollers (72, 73). The fused separator 6 is introduced into the upper surface. The fifth cooling roller 75 is installed above the fourth cooling roller 74 and is rotated in a direction opposite to the rotational direction of the fourth cooling roller 74 so that the fourth and second cooling rollers 74 together with the fourth cooling roller 74 are formed. The separator 6 is continuously pressurized and cooled through the five cooling rollers 74 and 75 continuously. The sixth cooling roller 76 is installed above the fifth cooling roller 75 vertically and rotates in a direction opposite to the rotational direction of the fifth cooling roller 75 so that the fifth and the fifth cooling rollers 75 together with the fifth cooling roller 75. Fourth pressurizing and cooling the separator 6 which passes between 6 cooling rollers 75 and 76 continuously.

Rotation of the first to sixth cooling rollers (71, 72, 73, 74, 75, 76) is a second roller driving motor (not shown) for rotation to at least one of the first to sixth cooling roller The rotating shafts of the remaining cooling rollers may be gear-connected with the rotating shafts of any one of the cooling rollers provided with the second roller driving motor. Alternatively, rotation of the first to sixth cooling rollers 71, 72, 73, 74, 75, and 76 may be performed by rotating shafts of any one of the heating rollers on which the first roller driving motor (not shown) is mounted. The sixth cooling roller may be connected to the gear. Alternatively, the rotation of the first to sixth cooling rollers 71, 72, 73, 74, 75, and 76 may be separately performed as the first to sixth heating rollers 51, 53, 55, 57, 59, and 61. The conveying force of the sheet extruded from the sheet forming portion without the driving means, the conveying force of the carbon member supplied by the rotation support shaft 45 of the carbon member supply portion, and the third driving motor of the separating plate winding portion 91 described later ( The sheet 3 and the carbon member 4 may be pulled toward the separator plate winding 90 by the rotational force of the winding shaft 93 connected to the 95.

Referring to FIG. 1, the pressure melting part 50 and the pressure cooling part 70 are accommodated in a third support frame 79 in which one side and the other side parallel to the sheet 3 withdrawal direction are opened. Each may be installed in a separate frame (not shown).

At the other end of the third support frame 79 on which the pressure cooling unit 70 is installed, the separator 6 drawn out from the pressure cooling unit 70 is opposed to each other in order to pull out the separator plate 6 in the direction of the separation plate winding unit 90 described later. The first and second separation plate withdrawal rollers 81 and 82 which rotate in the direction are mounted.

Separation plate winding 90 is to wind the continuous formed separation plate 6 cooled in the pressure cooling unit 70 in the form of a roll, to maintain the tension of the separator 6 continuously drawn out from the pressure cooling unit. A plurality of extension rollers 91, a winding shaft 93 on which the separating plate 6 is wound, a third driving motor 95 for rotating the winding shaft 93, and a third driving motor 95 are installed. And a fourth support frame 97 for rotatably supporting the take-up shaft 95 at a position spaced upwardly with respect to the ground.

In addition, the separator plate manufacturing apparatus 1 for a redox flow battery of the present invention includes a control unit (not shown) and an operation unit (not shown) for driving the first to third driving motors 15, 43, and 95. .

Until now, the separator plate manufacturing apparatus 1 for a redox flow battery of the present invention can produce a continuously extending separator plate 6 so that mass production is easy and the restriction on the specification of the redox flow battery to be produced is small, and thus the application efficiency. There is an advantage to increase.

The apparatus for manufacturing a separator plate for a redox flow battery of the present invention (1) is a carbon member is laminated on a sheet formed of a polymer resin and thermally compressed, so that the filler ratio for the separator may be reduced and a high performance extruder does not need to be applied. It is possible to reduce the unit cost and to produce a separator having a high mechanical strength.

Now, a continuous production method of a separator plate for a redox flow battery using the manufacturing apparatus according to an embodiment of the present invention having the structure as described above will be described.

Redox flow battery separation plate continuous production method according to an embodiment of the present invention is a raw material sheet forming step (S1), sheet and carbon member stacking transfer step (S2), pressure fusion transfer step (S3), and pressure cooling The transfer step (S4), and the continuous separation plate winding step (S5) is included.

Raw material sheet forming step (S1) is a continuous plate-like shape by injecting the polymer resin raw material into the hopper 11 of the extruder 10 to melt the raw material and transported to the sheet forming unit 30 installed on the exit side of the extruder 10 It is a step of continuous molding into a sheet of.

The polymer resin raw material introduced through the hopper 11 is melted in the transfer housing and is transferred to the sheet forming portion 30 by the transfer screw, and flows into the side of the sheet forming portion 30 through the melt discharge portion 19. .

Sheet and carbon member stacking transfer step (S2) is located below the front side of the sheet molding portion 30, the carbon member supply unit 40 is wound up to release the carbon member (4) sheet discharged from the sheet molding portion 30 (3) is a step of continuous transfer to the pressure fusion unit 50 having a plurality of heating rollers 51, 53, 55, 57, 59, 31, which are stacked and heated.

The wound carbon member 4 is unwound as the rotary support shaft 41 connected to the second driving motor 43 is rotated counterclockwise based on FIG. 1.

The pressurized fusion transfer step (S3) is pressurized by passing the sheet 3 and the carbon member 4 are stacked and continuously conveyed between the adjacent heating rollers (51, 53, 55, 57, 59, 31) At the same time, the heat-sealing to form a continuous formed separator plate, the step of transferring to the pressurized cooling unit 70 for cooling the separator 6 formed by heat melting.

In the pressure fusion transfer step (S3), the sheet 3 is melted and compressed with the carbon member 4, so that the polymer resin is impregnated into the felt-like carbon member 4 having a plurality of fibers.

In the pressure fusion transfer step (S3), the sheet 3 and the carbon member 4 are formed of the first and second heating rollers 51 and 53, the second and third heating rollers 53 and 55, and the fourth and the third heating rollers 53 and 55. It is formed by the separation plate 6 in which the sheet 3 is impregnated in the carbon member 4 by being press-bonded in multiple stages by the fifth heating rollers 57 and 59 and the fifth and sixth heating rollers 59 and 61. do.

Pressurized cooling transfer step (S4) is passed through the separator 6 formed continuously between the cooling rollers 71, 72, 73, 74, 75, 76 of the pressurized cooling unit 70 rotated adjacent to each other to pressurize and cool Transferring to the separator winding unit 90 for winding the cooled separator plate.

In the pressurized cooling transfer step (S4), the separator 6 includes first and second cooling rollers 71 and 72, second and third cooling rollers 72 and 73, and fourth and fifth heating rollers ( 74, 75 and the fifth and sixth heating rollers (75, 76) are pressurized and cooled in multiple stages to improve the mechanical strength.

Continuously formed separator plate winding step (S5) is a step of winding the continuously formed separator plate 6 drawn out from the pressure cooling unit (70).

The continuous production method of the separator plate for redox flow battery of the present invention is capable of producing a separator plate that extends continuously in a constant width, so that a uniform product can be produced and the product production speed can be relatively improved.

In addition, the continuous production method of the separator plate for redox flow battery of the present invention can be applied by cutting to the corresponding length according to the specifications of the redox flow battery to be produced, there is less restriction on the separator plate specification to increase the application efficiency There is this.

In addition, the continuous production method of the separator plate for the redox flow battery of the present invention and its manufacturing apparatus is carbon felt is laminated on the sheet formed of a polymer resin and thermo-compressed so that the ratio of fillers for the separator plate can be lowered to facilitate material supply. There is no need to apply a high performance extruder can reduce the production cost and there is an advantage to produce a separator having a high mechanical strength.

Continuous process for producing a separator plate for a redox flow battery according to the present invention has been described with reference to the embodiment shown in the drawings, but this is merely illustrative, various modifications and equivalents from those skilled in the art It will be appreciated that other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

S1: Raw material sheet forming step
S2: Raw material and carbon member stacking transfer step
S3: Pressure Fusion Transfer Step
S4: Pressurized Cooling Transfer Step
S5: Continuously formed separator winding step
1: Separator manufacturing device for redox flow battery
10: extruder 11: hopper
13: resin transfer housing 15: first drive motor
19: molten raw material discharge part 30: sheet molding part
40: carbon member supply portion 41: rotation support shaft
43: second drive motor 45: second support frame
50: fusion welding part 51: the first heating roller
53: second heating roller 55: third heating roller
57: fourth heating roller 59: fifth heating roller
61: sixth heating roller 70: pressure cooling unit
71: first cooling roller 72: second cooling roller
73: third cooling roller 74: fourth cooling roller
75: fifth cooling roller 76: sixth cooling roller
79: third support frame 90: separating plate winding

Claims (3)

In the continuous production method of a separator plate for a redox flow battery using a manufacturing apparatus capable of continuously manufacturing a separator plate for a redox flow battery,
A raw material sheet forming step of injecting a polymer resin raw material into a hopper of an extruder of the manufacturing apparatus to melt the raw material, and to transfer to a sheet forming unit installed at an outlet side of the extruder to continuously form a continuous sheet-like sheet;
A carbon member formed of a carbon material and continuously extending is wound, and the carbon member is unwound from a carbon member supply unit located above or below the sheet molding unit, and laminated on the sheet discharged from the sheet molding unit. A sheet and carbon member lamination transfer step of continuously transferring the pressure fusion unit having a plurality of heating rollers;
The sheet and carbon members stacked and conveyed continuously through the heating rollers are pressurized and simultaneously heat-sealed together to form the continuously formed separator plates, and a pressurized cooling unit having a plurality of cooling rollers for cooling the separator plates. A pressure fusion transfer step of transferring;
A pressurized cooling transfer step of passing the continuously formed separator plates between the cooling rollers which are rotated adjacent to each other to pressurize and cool and transfer the separated separator plates to a separator winding part for winding the cooled separator plate;
And a continuous formed separator winding step of winding the continuous formed separator drawn out from the pressurized cooling part,
The extruder
A hopper into which the raw material is introduced, a resin transport housing in which the raw material introduced into the hopper is melted and transported in one direction, and bent in a first direction perpendicular to a longitudinal direction of the resin transport housing, It is provided with a molten raw material discharge portion for transferring the melt-transferred raw material in the first direction,
The sheet molding portion
The raw material is melt-transferred in connection with the molten raw material discharge part is molded into a sheet having a plate shape in the longitudinal direction of the resin transfer housing,
The pressure fusion unit
A plurality of heating rollers are provided adjacent to the sheet forming part, and a heating means is provided therein so that the carbon member and the sheet stacked together in the lamination transfer step are pressed together and thermally fused at the same time to form a separator plate. Equipped,
The plurality of heating rollers
First to third heating rollers corresponding to each other in a vertical direction and installed adjacent to each other and rotated in opposite directions so that the carbon member and the sheet stacked on each other are pressurized and thermally fused in multiple stages; Each of the heating rollers includes a fourth to sixth heating rollers which are arranged in parallel to each other in a horizontal direction and correspond to each other in a vertical direction, and are installed adjacent to each other.
The pressure cooling unit
It is provided with a plurality of cooling rollers provided with a cooling means to pressurize and cool the separation plate formed heat-sealed in the pressure fusion weld,
The plurality of cooling rollers
The separation plates continuously melted in the pressure fusion unit are horizontally aligned with the fourth to sixth heating rollers so as to correspond to each other in the vertical direction and installed adjacent to each other so as to be pressurized and cooled in multiple stages. Comprising the first to third cooling rollers, and the first to third cooling rollers are arranged in parallel with each other in the horizontal direction and corresponding to each other in the vertical direction, and are provided adjacent to the fourth to sixth cooling rollers,
The pressure fusion unit
A thickness formed by the sheets and the carbon member laminated to each other and having an arc curvature corresponding to the first heating roller so that the sheets and the carbon member laminated to each other may be bent and transferred in a rotational direction of the first heating roller. Separator continuous production method for a redox flow battery, characterized in that it further comprises an induction feather spaced apart from the first heating roller. delete delete

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