Plasma generator for secondary battery and lamination system including the same

Abstract

The present invention provides a plasma generator for a secondary battery. The plasma generator includes: a transfer roller configured to transfer a separator; and a plasma generating component configured to form an adhesive surface having an adhesive force on a portion of the separator's surface transferred by the transfer roller, and to form a non-adhesive surface having no adhesive force on the remaining portion of the separator's surface. The plasma generating component includes: a metal member embedded in the transfer roller; a plasma generating component spaced apart from the transfer roller and configured to generate plasma by interacting with the metal member, thereby forming the adhesive surface having an adhesive force on the portion of the separator's surface; and a blocking member disposed on the outer peripheral surface of the transfer roller and configured to block the interaction between the metal member and the plasma generating component, thereby forming the non-adhesive surface having no adhesive force on the remaining portion of the separator's surface.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of priority from Korean Patent Application No. 10-2020-0143819, filed on October 30, 2020, which is hereby incorporated by reference herein in its entirety. Technical Field

[0003] The present invention relates to a plasma generator for a secondary battery capable of forming a patterned adhesion surface on the surface of a separator by generating plasma, and also relates to a lamination system including the plasma generator. Background Art

[0004] Generally, secondary batteries refer to rechargeable and dischargeable batteries, unlike non-rechargeable primary batteries. Secondary batteries are being widely used in high-tech electronic fields such as mobile phones, laptop computers, and video cameras.

[0005] In addition, such secondary batteries are divided into can-type secondary batteries in which the electrode assembly is built into a metal can and pouch-type secondary batteries in which the electrode assembly is built into a pouch. Pouch-type secondary batteries include an electrode assembly, an electrolyte, and a pouch that contains the electrode assembly and the electrolyte. Moreover, in the electrode assembly, the positive electrode and the negative electrode are provided with a separator. An electrode tab is attached to each of the positive electrode and the negative electrode, and an electrode lead is coupled to each of the electrode tabs.

[0006] A lamination process is performed on the secondary battery to improve adhesion of an electrode assembly in which a positive electrode, a separator, and a negative electrode are laminated.

[0007] However, the secondary battery has a problem in that even if the adhesion properties of the positive electrode, the separator, and the negative electrode are improved through a lamination process, the impregnation force of the electrolyte is significantly reduced.

[0008] In particular, there is a problem in that gas generated between a positive electrode and a separator or between a negative electrode and a separator is not smoothly discharged, and thus it is difficult to ensure uniform quality of an electrode assembly. Summary of the Invention

[0009] Technical issues

[0010] In order to solve the above problems, an object of the present invention is to provide a plasma generator for a secondary battery and a lamination system including the plasma generator, in which, when a lamination process is performed, the adhesion of the positive electrode, the separator and the negative electrode is increased, the impregnation force of the electrolyte is increased, and the gas generated between the positive electrode and the separator or between the negative electrode and the separator is easily discharged.

[0011] Technical Solution

[0012] A plasma generator for a secondary battery according to the present invention for achieving the above-mentioned object includes: a transfer roller configured to transfer a separator; and a plasma generating component configured to form an adhesive surface having an adhesive force on a portion of a surface of the separator transferred by the transfer roller, and to form a non-adhesive surface having no adhesive force on a remaining portion of the surface of the separator, wherein the plasma generating component includes: a metal member embedded in the transfer roller; a plasma generating component disposed so as to be spaced apart from the transfer roller and configured to generate plasma by mutual reaction with the metal member, thereby forming the adhesive surface having an adhesive force on the portion of the surface of the separator; and a blocking member disposed on an outer peripheral surface of the transfer roller and configured to block mutual reaction between the metal member and the plasma generating component, thereby forming a non-adhesive surface having no adhesive force on the remaining portion of the surface of the separator.

[0013] The blocking member may be made of a non-conductive material to block mutual reaction between the metal member and the plasma generating member.

[0014] The blocking member may be provided as an endless belt extending along the circumference of the transfer roller and having both ends connected to each other.

[0015] The blocking member may be provided as a plurality of blocking films arranged at regular or irregular intervals on the transfer roller.

[0016] The blocking member may be formed by attaching a non-conductive film to the outer peripheral surface of the transfer roller.

[0017] The blocking member may be formed by coating a non-conductive material on an outer circumferential surface of the transfer roller.

[0018] An insertion groove may be formed in an outer circumferential surface of the transfer roller, and the blocking member may be disposed in the insertion groove of the transfer roller.

[0019] An outer circumferential surface of the blocking member disposed in the insertion groove and an outer circumferential surface of the transfer roller may have the same height.

[0020] The plasma generating member may include: a main body arranged to correspond to the length direction of the transfer roller; and an electrode sheet arranged in the main body and configured to generate plasma by mutual reaction with the metal member, thereby forming an adhesive surface having an adhesive force on the surface of the diaphragm, wherein the electrode sheet may be configured as a corona discharge electrode.

[0021] The barrier strips may be provided in plurality and formed at regular or irregular intervals in the length direction of the transfer roller.

[0022] A lamination system according to the present invention includes: a plurality of supply rollers configured to supply electrodes and a separator so that the electrodes and the separator are alternately laminated; a first cutter configured to cut the electrodes; a plasma generator configured to form an adhesive surface having an adhesive force on a portion of a surface of the separator and a non-adhesive surface having no adhesive force on the remaining portion; a laminator configured to thermally fuse the electrodes and the separator to manufacture free radical units; and a second cutter configured to cut the free radical units into the same size.

[0023] The plasma generator may be configured to form an adherent surface and a non-adhesive surface on a surface of the diaphragm before the diaphragm and the electrode are thermally fused.

[0024] Beneficial effects

[0025] The plasma generator for a secondary battery according to the present invention may include a transfer roller and a plasma generating component, wherein the plasma generating component may include a metal member, a plasma generating component, and a blocking member. Due to these features, an adhesive surface having an adhesive force and a non-adhesive surface having no adhesive force can be alternately formed on the surface of the separator, thereby manufacturing a separator having a patterned adhesive surface.

[0026] That is, the plasma generating component can generate plasma through interaction with the metal member to form an adhesive surface having an adhesive force on a portion of the surface of the diaphragm, and the blocking member can block the interaction between the metal member and the plasma generating component to form a non-adhesive surface having no adhesive force on the remaining portion of the surface of the diaphragm. As a result, the adhesive force between the diaphragm and the electrode can be increased, and the impregnation force of the electrolyte and the gas discharge force between the diaphragm and the electrode can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a cross-sectional view of an electrode assembly including a radical unit according to an embodiment of the present invention.

[0028] Figure 2 1 is a process diagram of a lamination system according to a first embodiment of the present invention.

[0029] Figure 3 is a cross-sectional view showing a plasma generator for a secondary battery according to a first embodiment of the present invention.

[0030] Figure 4 Is set with Figure 3 A perspective view of the transfer roller with a barrier member in FIG.

[0031] Figure 5 yes Figure 4 Plan view of the.

[0032] Figure 6 yes Figure 4 side view.

[0033] Figure 7 is a plan view showing an operating state of the plasma generator according to the first embodiment of the present invention.

[0034] Figure 8 is a plan view showing a separator manufactured by the plasma generator for a secondary battery according to the first embodiment of the present invention.

[0035] Figure 9 is a perspective view illustrating a transfer roller provided with a blocking member in a plasma generator for a secondary battery according to a second embodiment.

[0036] Figure 10 yes Figure 9 A partial cross-sectional view of .

[0037] Figure 11 is a front view showing a transfer roller provided with a blocking member in a plasma generator for a secondary battery according to a third embodiment.

[0038] Figure 12 : is a graph showing the results obtained by conducting an experiment on the adhesion of radical units according to a manufacturing example of the present invention.

[0039] Figure 13 1 and 2 are photographs showing experiments related to the impregnation force of the electrolyte of the radical cell according to the comparative example.

[0040] Figure 14 are photographs showing experiments related to the impregnation force of the electrolyte of the radical cell according to the manufacturing example. DETAILED DESCRIPTION

[0041] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in a manner that allows a person skilled in the art to easily implement the technical concept of the present invention. However, the present invention can be implemented in different forms and should not be construed as being limited to the embodiments described herein. In the accompanying drawings, any content that is not necessary for describing the present invention will be omitted for clarity, and the same reference numerals in the drawings represent the same elements.

[0042] [Electrode Assembly According to First Embodiment of the Present Invention]

[0043] The electrode assembly 10 according to the first embodiment of the present invention may be formed by repeatedly laminating one kind of radical unit 11 or two or more kinds of radical units 11 in a predetermined order.

[0044] That is to say, if Figure 1As shown, the electrode assembly 10 according to the first embodiment of the present invention may be formed by vertically stacking a plurality of radical units 11 having the same stacking structure.

[0045] For example, the electrode assembly 10 according to the first embodiment of the present invention may have a structure in which a radical unit 11 having a four-layer structure in which a first electrode 11a as a positive electrode, a separator 11b, a second electrode 11c as a negative electrode, and a separator 11b are continuously laminated is repeatedly laminated.

[0046] The radical unit 11 may be manufactured by a lamination system. Here, the radical unit 11 may be improved in adhesion, electrolyte impregnation, and gas discharge through the lamination system.

[0047] [Lamination system according to the first embodiment of the present invention]

[0048] like Figure 2 As shown, the lamination system according to the first embodiment of the present invention may include a plurality of supply rollers 200, a first cutter 300, a laminator 400, and a second cutter 500, wherein the plurality of supply rollers 200 supply electrodes 11a and 11c and a separator 11b to be alternately laminated, the first cutter 300 cuts the electrodes 11a and 11c, the laminator 400 heat-fuse the electrodes 11a and 11c and the separator 11b to manufacture free radical unit sheets, and the second cutter 500 cuts the free radical unit sheets into a predetermined size to manufacture the free radical unit 11.

[0049] Supply Roller

[0050] The plurality of supply rollers 200 include a first electrode supply roller 210 supplying a positive first electrode 11a, a first separator supply roller 220 supplying one separator 11b, a second electrode supply roller 230 supplying a negative second electrode 11c, and a second separator supply roller 240 supplying another separator 11b.

[0051] First cutter

[0052] The first cutter 300 includes a first cutter member 310 that cuts one electrode 11 a in a predetermined size and a second cutter member 320 that cuts the other electrode 11 c in a predetermined size.

[0053] Laminating machine

[0054] The laminator 400 applies heat while pressing the electrodes 11 a , 11 c , and the separator 11 b to adhere the electrodes 11 a , 11 c to the separator 11 b .

[0055] Second cutter

[0056] The second cutter 500 cuts the separator 11 b between the electrodes 11 a and 11 c corresponding to each other to manufacture the radical unit 11 .

[0057] The lamination system including the above components according to the first embodiment of the present invention can manufacture the radical unit 11 in which electrodes 11a and 11c and separators 11b are alternately laminated. Then, one or more radical units 11 can be laminated to manufacture the electrode assembly 10.

[0058] The lamination system according to the first embodiment of the present invention may include a plasma generator 100 for improving the adhesion, electrolyte impregnation, and gas discharge of the radical unit 11. Specifically, the plasma generator 100 may form a patterned adhesive surface having an adhesive force on the surface of the separator, thereby allowing the separator and the electrode to adhere to each other. As a result, the adhesion, electrolyte impregnation, and gas discharge forces may be increased.

[0059] plasma generator

[0060] The plasma generator 100 is configured to form a patterned adhesive surface having an adhesive force on the surface of the diaphragm, such as Figures 3 to 8 shown.

[0061] More specifically, plasma generator 100 can alternately form adhesive surfaces 11b-1 having adhesion and non-adhesive surfaces 11b-2 having no adhesion or less adhesion than adhesive surface 11b-1 on the surface of separator 11b. Therefore, adhesive surfaces 11b-1 and non-adhesive surfaces 11b-2 can be patterned alternately on the surface of separator 11b. As a result, the electrodes and separator can adhere to each other in a patterned manner, thereby increasing adhesion. In particular, when electrolyte or gas passes through non-adhesive surfaces 11b-2 formed on separator 11b, electrolyte impregnation and gas discharge can be enhanced.

[0062] For example, Figure 3 As shown, the plasma generator 100 includes a transfer roller 110 and a plasma generating part 120, which are respectively disposed on the membrane 11b between the first membrane supply roller 220 and the laminator 400 or on the membrane 11b between the second membrane supply roller 240 and the laminator 400.

[0063] The transfer roller 110 may be provided to be long in a width direction of the separator to support the bottom surface of the separator 11 b and simultaneously transfer the separator 11 b in a direction of the laminator 400 .

[0064] The plasma generating component 120 forms a patterned adhesive surface having adhesive force on the surface of the diaphragm supported by the transfer roller. Specifically, the plasma generating component 120 forms an adhesive surface 11b-1 having adhesive force on a portion or multiple portions of the surface of the diaphragm 11b supported by the transfer roller 110, and forms a non-adhesive surface 11b-2 having no adhesive force or less adhesive force than the adhesive surface 11b-1 on the remaining portion of the diaphragm 11b. Thus, a patterned adhesive surface having adhesive force can be formed on the surface of the diaphragm.

[0065] More specifically, the plasma generating part 120 includes a metal member 121 , a plasma generating member 122 , and a blocking member 123 .

[0066] The metal member 121 has a cylindrical shape, is embedded in the transfer roller 110 , and is configured to extend in the length direction of the transfer roller 110 .

[0067] The plasma generating member 122 is disposed to be spaced apart from the transfer roller 110 and generates plasma by mutual reaction with the metal member 121 embedded in the transfer roller 110 to form an adhesive surface 11 b - 1 having adhesive force on the separator 11 b .

[0068] That is, the plasma generating member 122 includes a main body 122a and an electrode sheet 122b, the main body 122a is provided to correspond to the length direction of the transfer roller 110, and the electrode sheet 122b is provided in the main body 122a and generates plasma by mutual reaction with the metal member 121 to form an adhesive surface 11b-1 having adhesive force on the surface of the diaphragm 11b.

[0069] The body 122a may be made of a non-metallic material, thereby preventing resistance from being generated between the metal member 121 and the electrode sheet 122b, and stably generating plasma between the metal member 121 and the body 122a.

[0070] The main body 122a can be made of ceramic, a non-metallic material. Ceramics are non-metallic inorganic materials obtained through a heat treatment process and have heat resistance, high strength, and corrosion resistance. In particular, since ceramics are light in weight, they can improve usage efficiency.

[0071] Electrode sheet 122b is disposed on an outer surface of body 122a that does not face diaphragm 11b and extends in the length direction of body 122a (i.e., the width direction of the diaphragm). Electrode sheet 122b may be a corona discharge electrode. The corona discharge electrode can stably generate plasma between metal member 252 and body 122a.

[0072] The blocking member 123 is provided on the outer circumferential surface of the transfer roller 110 to block the mutual reaction between the metal member 121 and the plasma generating member 122, thereby forming a non-adhesive surface 11b-2 having no adhesion on the remaining portion of the surface of the diaphragm 11b.

[0073] The plasma-generating component 120 having such a configuration forms an adhesive surface 11b-1 having an adhesive force due to plasma generated by the mutual reaction between the metal member 121 and the plasma-generating component 122 on the surface of the diaphragm 11b supported on the transfer roller 110 without the blocking member 123, and forms a non-adhesive surface 11b-2 having no adhesive force on the surface of the diaphragm supported on the transfer roller 110 provided with the blocking member 123 due to the mutual reaction between the blocking metal member 121 and the plasma-generating component 122. As a result, an adhesive layer having a pattern structure in which adhesive surfaces and non-adhesive surfaces are alternately formed can be formed on the surface of the diaphragm 11b.

[0074] Therefore, the plasma generator 100 may include a transfer roller 110 and a plasma generating component 120. Here, the plasma generating component 120 may include a metal member 121, a plasma generating component 122, and a blocking member 123, so that an adhesive surface having adhesive force is patterned on the surface of the separator, and the electrode and the separator may be pattern-adhered to each other via the patterned adhesive surface to increase adhesive force. In particular, when the electrolyte and gas pass through the non-adherent portion of the electrode and the separator, the electrolyte impregnation force and gas discharge force may be increased.

[0075] The blocking member 123 may be made of a non-conductive material, thereby blocking the metal member 121 and the plasma generating member 122 from reacting with each other, and as a result, a non-adhesive surface may be stably formed on the surface of the diaphragm. For example, the blocking member may be made of any one of synthetic resin, silicone resin, rubber material, and polyurethane.

[0076] In particular, the blocking member 123 is provided as an annular blocking belt extending along the outer circumferential surface of the transfer roller 110 and having both ends connected to each other. Therefore, the blocking member 1230 can be stably attached to the outer circumferential surface of the transfer roller 110, resulting in an increased coupling force.

[0077] The barrier tape is not provided on the outer circumferential surface of the transfer roller 110, and both ends of the diaphragm are provided on the outer circumferential surface of the transfer roller 110. Therefore, adhesive surfaces having adhesive force can be formed on both ends of the diaphragm, and as a result, the adhesive force between the ends of the diaphragm and the ends of the electrode can be increased.

[0078] In particular, the barrier tape may be provided in plurality at regular or irregular intervals in the length direction of the transfer roller 110, thereby alternately forming a plurality of non-adhesive surfaces 11b-2 and a plurality of adhesive surfaces 11b-1 on the surface of the diaphragm 11b at regular or irregular intervals.

[0079] Multiple barrier strips may be provided on the outer circumferential surface of the transfer roller 110, and the width of each barrier strip may gradually decrease from a centerline bisecting the length of the transfer roller toward both ends. Specifically, the barrier strip provided at the centerline of the transfer roller has a first width, forming a non-adhesive surface having a size corresponding to the first width at the center of the separator in the width direction. The barrier strips provided at each of the ends of the transfer roller have a second width, smaller than the first width, forming a non-adhesive surface having a size corresponding to the second width in the width direction of the separator. Thus, a large non-adhesive surface can be provided at the center of the separator to increase electrolyte impregnation and gas removal, while a small non-adhesive surface can be provided at both ends of the separator to increase adhesion between the electrode and the separator.

[0080] The plasma generator 100 may further include an air supply member 130 that supplies air between the transfer roller 110 and the plasma generating part 120. The air supply member 130 may supply air between the transfer roller 110 and the plasma generating part 120 to make the plasma more stable.

[0081] Therefore, the lamination system according to the first embodiment of the present invention may include a plasma generator 100 to manufacture a membrane having a patterned adhesion surface, such as Figure 8 Furthermore, the separator and the electrode can be bonded to each other to produce a radical cell with high adhesion, electrolyte impregnation, and gas discharge capabilities.

[0082] Hereinafter, in description of another embodiment of the present invention, components having the same components and functions as those of the above-described embodiment are given the same reference numerals in the drawings, and thus repeated description will be omitted.

[0083] [Plasma generator according to a second embodiment of the present invention]

[0084] like Figure 9 and 10 As shown, the plasma generator according to the second embodiment of the present invention includes a blocking member 123. Here, the blocking member 123 is disposed in an insertion groove 111 formed in the outer circumferential surface of the transfer roller 110. Here, the insertion groove 111 has a structure connected along the circumferential direction of the transfer roller 110. Therefore, the blocking member 123 can be more conveniently disposed on the outer circumferential surface of the transfer roller 110.

[0085] Particularly, the outer circumferential surfaces of the blocking member 123 disposed in the insertion groove 111 and the transfer roller 110 have the same height to prevent a height difference from occurring between the transfer roller 110 and the blocking member 123 , thereby more stably transferring the membrane by the transfer roller.

[0086] [Plasma generator according to a third embodiment of the present invention]

[0087] The plasma generator according to the third embodiment of the present invention includes a blocking member 123. Here, the blocking member 123 is provided with a plurality of blocking films arranged on the outer circumferential surface of the transfer roller 110 at regular or irregular intervals.

[0088] For example, Figure 11 As shown, a plurality of barrier films may be provided to be arranged at set intervals along the length direction and the circumferential direction of the transfer roller 110. Thus, a checkerboard-shaped adhesive surface having adhesive force may be patterned on the surface of the diaphragm.

[0089] According to another embodiment of the present invention, the blocking member 123 may be formed by coating the outer circumferential surface of the transfer roller 110 with a non-conductive material along the circumference of the transfer roller. Therefore, the coupling force between the transfer roller 110 and the blocking member 123 may be significantly increased.

[0090] [Experimental example]

[0091] Experimental preparation

[0092] Three radical units were prepared using the lamination system according to the first embodiment of the present invention. That is, the separator 11b in which the adhesive surface 11b-1, the non-adhesive surface 11b-2, and the adhesive surface 11b-1 were alternately formed was manufactured using the lamination system according to the first embodiment of the present invention, and then the separator and the electrode were laminated and bonded to produce the radical unit.

[0093] In a manufacturing example, three free radical units made as described above were prepared (see Figure 12 ).

[0094] Adhesion strength test

[0095] According to the manufacturing example, the electrodes and separators provided in the three radical units prepared as described above were separated from each other to measure the load on the adhesion interface. As a result, the load on the adhesion interface can be obtained. Figure 12 The same graph as in .

[0096] That is to say, referring to Figure 12, it can be seen that a load of approximately 35 g / mm is generated on the first adhesion portion (i.e., adhesion surface) between the electrode and the separator. Furthermore, a load of 5 g / mm is confirmed to be generated on the non-adhesion portion between the electrode and the separator. Here, the 5 g / mm that appears in the non-adhesion portion of the electrode and the separator is likely the adhesive force generated by the laminator. Furthermore, it can be seen that a load of approximately 32 g / mm is generated on the second adhesion portion between the electrode and the separator.

[0097] Therefore, through the experimental results as described above, it can be confirmed that the patterned adhesion surface is stably formed on the surface of the separator in the radical unit manufactured by the lamination system according to the first embodiment of the present invention.

[0098] Electrolyte immersion test

[0099] In the manufacturing example, three radical cells manufactured by the lamination system according to the first embodiment of the present invention were prepared, in which electrodes and separators were pattern-bonded to each other.

[0100] In the comparative example, three radical units were prepared in which the electrode and the entire separator were bonded to each other.

[0101] The radical unit according to the comparative example and the radical unit according to the manufacturing example prepared as described above were placed in the same water tank stored in the electrolyte for 1 minute and then taken out from the water tank.

[0102] As a result of the experiment, reference Figure 13 , in the comparative example, it can be confirmed that when the impregnation force of the electrolyte with respect to each of the three radical units is measured, the electrolyte is impregnated to a depth of 5.5 mm to 6.0 mm. In addition, referring to Figure 14 In the manufacturing example, it can be seen that the electrolyte is impregnated to a minimum depth of 6 mm and a maximum depth of 26 mm. In this case, it can be confirmed that the minimum electrolyte impregnation portion is the bonding portion between the electrode and the separator, and the maximum electrolyte impregnation portion is the non-bonding portion between the electrode and the separator.

[0103] Therefore, it can be seen that the electrolyte impregnation force in the production example is significantly improved compared to the comparative example.

[0104] Therefore, the scope of the invention is defined by the appended claims rather than the foregoing description and the exemplary embodiments described therein. Various modifications that come within the meaning of equivalents of the claims and within the claims should be considered within the scope of the invention.

[0105] [Explanation of symbols]

[0106] 11: Free radical unit

[0107] 10: Electrode assembly

[0108] 100: Plasma Generator

[0109] 110: Transfer roller

[0110] 111: Insert into groove

[0111] 120: Plasma generating components

[0112] 121: Metal components

[0113] 122: Plasma generating components

[0114] 122A: Main body

[0115] 122b: Electrode sheet

[0116] 123: Blocking member

[0117] 200: Supply roller

[0118] 300: First cutter

[0119] 400: Laminating machine

[0120] 500: Second cutter

Claims

1. A plasma generator for a secondary battery, comprising: a transfer roller configured to transfer the membrane; as well as a plasma generating member configured to form an adhesive surface having an adhesive force on a portion of the surface of the diaphragm transferred by the transfer roller and to form a non-adhesive surface having no adhesive force on the remaining portion, Wherein, the plasma generating component comprises: a metal component embedded in the transfer roller; a plasma generating member disposed so as to be spaced apart from the transfer roller and configured to generate plasma by mutual reaction with the metal member, thereby forming the adhesion surface having adhesion on the portion of the surface of the diaphragm; and a blocking member provided on an outer peripheral surface of the transfer roller and configured to block a mutual reaction between the metal member and the plasma generating member, thereby forming the non-adhesive surface having no adhesive force on the remaining portion of the surface of the diaphragm, The blocking member is made of a non-conductive material. 2 . The plasma generator according to claim 1 , wherein the blocking member is provided as an endless belt extending along a circumference of the transfer roller and having both ends connected to each other. 3 . The plasma generator according to claim 1 , wherein the blocking member is provided as a plurality of blocking films arranged at regular or irregular intervals on the transfer roller. 4 . The plasma generator according to claim 1 , wherein the blocking member is formed by attaching a non-conductive film to an outer peripheral surface of the transfer roller. 5 . The plasma generator according to claim 1 , wherein the blocking member is formed by coating a non-conductive material on an outer circumferential surface of the transfer roller.

6. The plasma generator according to claim 1, wherein an insertion groove is formed in an outer peripheral surface of the transfer roller, and The blocking member is disposed in the insertion groove of the transfer roller. 7 . The plasma generator according to claim 6 , wherein an outer circumferential surface of the blocking member disposed in the insertion groove and an outer circumferential surface of the transfer roller have the same height.

8. The plasma generator according to claim 1, wherein the plasma generating member comprises: a main body, arranged to correspond to the length direction of the transfer roller; as well as an electrode sheet disposed in the main body and configured to generate plasma by mutual reaction with the metal member, thereby forming the adhesion surface having adhesion force on the surface of the diaphragm, The electrode sheet is configured as a corona discharge electrode.

9. The plasma generator according to claim 2, wherein the endless belts are provided in plurality and are formed at regular or irregular intervals along a length direction of the transfer roller.

10. A lamination system comprising: a plurality of supply rollers configured to supply electrodes and separators so that the electrodes and the separators are alternately laminated; a first cutter configured to cut the electrode; The plasma generator according to any one of claims 1 to 9, wherein the plasma generator is configured to form an adhesive surface having an adhesive force on a portion of the surface of the diaphragm and to form a non-adhesive surface having no adhesive force on the remaining portion of the surface of the diaphragm; a laminator configured to thermally fuse the electrode and the separator to produce a free radical unit; as well as A second cutter is configured to cut the free radical units into the same size. 11 . The laminating system according to claim 10 , wherein the plasma generator is configured to form the adhesive surface and the non-adhesive surface on a surface of the diaphragm before the diaphragm and the electrode are heat-fused.

Images