Pouch-type secondary battery pressing jig and pouch-type secondary battery inspection method using the same

Abstract

The present invention relates to a pouch-type secondary battery pressure jig and a pouch-type secondary battery inspection method using the same, characterized by comprising: a first pressure unit including a first pressure plate provided to allow a second surface of a pouch-type secondary battery to be seated; a second pressure unit provided to pressure a first surface of the pouch-type secondary battery, including a second pressure plate provided to have an air hole formed to communicate with a fifth surface and a sixth surface; and an air injection unit provided to inject air into the first surface of the pouch-type secondary battery through the air hole.

Description

Technology Field

[0001] The present invention relates to a pouch-type secondary battery pressure jig and a pouch-type secondary battery inspection method using the same. More specifically, the invention relates to a pouch-type secondary battery pressure jig capable of determining whether a pouch-type secondary battery is defective by applying pressure to both sides of the pouch-type secondary battery and measuring the insulation resistance of the pouch-type secondary battery, and a pouch-type secondary battery inspection method using the same. Background Technology

[0003] With the increasing technological development and demand for mobile devices, rechargeable secondary batteries are being used as an energy source for various mobile devices. Secondary batteries are also attracting attention as an energy source for electric vehicles and hybrid electric vehicles, which are being presented as alternatives to conventional gasoline and diesel vehicles that use fossil fuels.

[0004] Secondary batteries are classified according to the shape of the battery case into cylindrical and prismatic batteries, in which the electrode assembly is embedded in a cylindrical or prismatic metal can, and pouch-type batteries, in which the electrode assembly is embedded in a pouch-type case made of aluminum laminate sheets.

[0005] FIG. 1 is a drawing for explaining a pouch-type secondary battery pressurizing jig according to the prior art.

[0006] Referring to FIG. 1, a pouch-type secondary battery (10) is placed on the upper surface of a lower jig (2), and an upper jig (1) is lowered to press the pouch-type secondary battery (10), and an insulation resistance between the pouch-type secondary battery (10) and the upper jig (1) or the lower jig (2) is measured and a defect is determined through a measuring unit.

[0007] In a conventional pouch-type secondary battery pressurizing jig, when the pouch-type secondary battery (10) is pressurized, surface pressure is generated between the pouch-type secondary battery (10) and the lower jig (2), and as a result, when the upper jig (1) rises, the pouch-type secondary battery (10) moves while attached to the lower surface of the upper jig (1), causing a problem in which a pickup error occurs. Prior art literature

[0009] Korean Patent Publication No. 10-2015-0054372 The problem to be solved

[0010] To solve the above-mentioned problems, the purpose is to provide a pouch-type secondary battery pressurizing jig that prevents surface pressure from occurring in the pouch-type secondary battery after pressurizing the pouch-type secondary battery, and a pouch-type secondary battery inspection method using the same. means of solving the problem

[0012] As a technical means for achieving the above-mentioned purpose, a pouch-type secondary battery pressurizing jig according to one embodiment of the present invention is characterized by comprising: a first pressurizing unit (100) including a first pressurizing plate (110) provided to allow a second surface (12) of a pouch-type secondary battery (10) to be seated; a second pressurizing unit (200) provided to press a first surface (11) of the pouch-type secondary battery (10), including a second pressurizing plate (210) provided with an air hole (213) formed to communicate with a fifth surface (211) and a sixth surface (212); and an air injection unit (300) provided to inject air into the first surface (11) of the pouch-type secondary battery (10) through the air hole (213).

[0013] In addition, in a pouch-type secondary battery pressure jig according to one embodiment of the present invention, the first pressure unit (100) comprises: a first pressure plate (110) having a third surface (111) that contacts a second surface (12) of the pouch-type secondary battery (10); and a first driving unit (120) having an axis (121) connected to a fourth surface (112) of the first pressure plate (110) to support the first pressure plate (110) and moving the first pressure plate (110) toward a first direction.

[0014] In addition, in a pouch-type secondary battery pressurizing jig according to one embodiment of the present invention, the first pressurizing unit (100) further includes a pressurizing sensor (130) that measures the force in the second direction when the pouch-type secondary battery (10) receives a force in the second direction from the second pressurizing unit (200).

[0015] In addition, in a pouch-type secondary battery pressure jig according to one embodiment of the present invention, the first driving unit (120) is characterized by providing a force toward the first direction to the second surface (12) of the pouch-type secondary battery (10) in response to a force toward the second direction measured through the pressure sensor (130).

[0016] In addition, in a pouch-type secondary battery pressure jig according to one embodiment of the present invention, the second pressure unit (200) is characterized by including: a second pressure plate (210) that contacts a first surface (11) of the pouch-type secondary battery (10); and a second driving unit (220) in which an axis (221) is connected to a fifth surface (211) of the second pressure plate (210) and moves the second pressure plate (210) toward a second direction.

[0017] In addition, in a pouch-type secondary battery pressure jig according to one embodiment of the present invention, the second driving unit (220) moves the second pressure plate (210) toward the second direction and provides a force toward the second direction to the first surface (11) of the pouch-type secondary battery (10).

[0018] In addition, in a pouch-type secondary battery pressure jig according to one embodiment of the present invention, the second pressure plate (210) is characterized by being spaced apart from the first pressure plate (110) in a first direction.

[0019] In addition, in a pouch-type secondary battery pressurizing jig according to one embodiment of the present invention, the air holes (213) are formed in a plurality of portions in the central part of the second pressurizing plate (210) that contacts the first surface (11) of the pouch-type secondary battery (10).

[0020] In addition, in a pouch-type secondary battery pressurizing jig according to one embodiment of the present invention, the air injection unit (300) is characterized by injecting air onto the first surface (11) of the pouch-type secondary battery (10) when the first surface (11) of the pouch-type secondary battery (10) is attached to the second pressurizing plate (210), thereby causing the pouch-type secondary battery (10) to detach from the second pressurizing plate (210).

[0021] In addition, the pouch-type secondary battery pressure jig according to one embodiment of the present invention is characterized by including a measuring unit (400) for measuring insulation resistance between the pouch-type secondary battery (10) and the first pressure plate (110) or the second pressure plate (210).

[0022] In addition, the pouch-type secondary battery pressurizing jig according to one embodiment of the present invention is characterized by further including a control unit that determines whether the pouch-type secondary battery (10) is defective through the insulation resistance measured through the measurement unit (400).

[0023] In addition, a method for inspecting a pouch-type secondary battery using a pouch-type secondary battery pressure jig according to one embodiment of the present invention comprises: (S1) a step of placing the pouch-type secondary battery (10) on the first pressure plate (110); (S2) a step of moving the second pressure plate (210) toward the second direction to apply pressure to the pouch-type secondary battery (10); (S3) a step of measuring the insulation resistance of the pouch-type secondary battery (10) through the measurement unit (400); and (S4) a step of moving the second pressure plate (210) toward the first direction to release the pressure on the pouch-type secondary battery (10).

[0024] In addition, in the method for inspecting a pouch-type secondary battery according to one embodiment of the present invention, in step (S3), the control unit determines whether the pouch-type secondary battery (10) is defective through the insulation resistance value of the pouch-type secondary battery (10) measured through the measurement unit (400).

[0025] In addition, in a method for inspecting a pouch-type secondary battery according to one embodiment of the present invention, in step (S4), the air injection unit (300) injects air onto the first surface (11) of the pouch-type secondary battery (10) through the air hole (213). Effects of the invention

[0027] As explained above, according to the pouch-type secondary battery pressure jig and the pouch-type secondary battery inspection method using the same, by spraying air through the air hole formed in the second pressure plate through the air injection unit on the first surface of the pouch-type secondary battery, the occurrence of surface pressure and pickup error of the pouch-type secondary battery can be prevented. Brief explanation of the drawing

[0029] FIG. 1 is a drawing for explaining a pouch-type secondary battery pressurizing jig according to the prior art. FIG. 2 is a perspective view for explaining a pouch-type secondary battery pressurizing jig according to one embodiment of the present invention. FIG. 3 is a drawing for explaining the first pressing part and the second pressing part of a pouch-type secondary battery pressing jig according to one embodiment of the present invention. FIG. 4 is a drawing for explaining how the first pressing part and the second pressing part of a pouch-type secondary battery pressing jig according to one embodiment of the present invention press a pouch-type secondary battery. FIG. 5 is a perspective view illustrating the second pressure plate of a pouch-type secondary battery pressure jig according to one embodiment of the present invention. FIG. 6 is a cross-sectional view for explaining the second pressure plate illustrated in FIG. 5. Specific details for implementing the invention

[0030] Embodiments that enable a person skilled in the art to easily implement the present invention are described in detail below with reference to the attached drawings. However, in describing the operating principles of preferred embodiments of the present invention in detail, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the essence of the present invention, such detailed description is omitted.

[0031] In addition, the same reference numerals are used for parts having similar functions and operations throughout the drawings. Throughout the specification, when a part is described as being connected to another part, this includes not only cases where they are directly connected, but also cases where they are indirectly connected with other elements in between. Furthermore, unless specifically stated otherwise, the inclusion of a certain component does not exclude other components but implies that additional components may be included.

[0032] In addition, based on Figure 3, the first direction is the 12 o'clock direction and the second direction is the 6 o'clock direction.

[0034] Hereinafter, a pouch-type secondary battery pressurizing jig according to the present invention will be described.

[0035] First, the pouch-type secondary battery (10) includes a battery case, and the battery case forms an electrode assembly and a gas pocket using a laminate sheet composed of an inner coating layer, a metal layer, and an outer coating layer.

[0036] Since the inner coating layer comes into direct contact with the electrode assembly, it must possess insulation and electrostatic resistance. Additionally, to ensure sealing from the outside, the sealing area formed by the thermal bonding of the inner layers must have excellent thermal bonding strength.

[0037] The material for this inner coating layer may be selected from, but is not limited to, polyolefin resins such as polypropylene, polyethylene, polyethylene acrylic acid, and polybutylene, polyurethane resins, and polyimide resins, which have excellent chemical resistance and good sealing properties; however, polypropylene is most preferable as it has excellent mechanical properties such as tensile strength, stiffness, surface hardness, and impact strength, as well as excellent chemical resistance.

[0038] The metal layer in contact with the inner coating layer serves as a barrier layer that prevents moisture or various gases from penetrating into the battery from the outside, and a lightweight aluminum film with excellent formability can be used as a preferred material for this metal layer.

[0039] In addition, an outer coating layer is provided on the other side of the metal layer, and this outer coating layer may use a heat-resistant polymer with excellent tensile strength, moisture resistance, and air permeability resistance to ensure heat resistance and chemical resistance while protecting the electrode assembly, and may use, for example, nylon or polyethylene terephthalate, but is not limited thereto.

[0040] The electrode assembly may be composed of, but is not limited to, a jelly-roll type electrode assembly having a structure in which a separator is interposed between a long sheet-type cathode and an anode and then wound; a stack type electrode assembly composed of unit cells having a structure in which rectangular anodes and cathodes are stacked with a separator interposed between them; a stack-folding type electrode assembly in which unit cells are wound by a long separating film; or a lamination-stack type electrode assembly in which unit cells are stacked with a separator interposed between them and attached to one another.

[0041] The positive electrode is composed of a positive electrode current collector and a positive electrode active material coated on the upper and lower surfaces of the positive electrode current collector.

[0042] The positive current collector can generally have a thickness of 3 to 500 μm. It is not particularly limited as long as it has high conductivity without causing chemical changes in the battery; for example, stainless steel, aluminum, nickel, titanium, calcined carbon, or aluminum or stainless steel surface-treated with carbon, nickel, titanium, silver, etc., may be used. In addition, various forms such as films, sheets, foils, nets, porous bodies, foams, and nonwoven fabrics are possible, or fine irregularities may be formed on the surface to increase the adhesion of the positive active material.

[0043] Meanwhile, a conductive material and a binder may be mixed into the positive active material, and a filler may be added as needed.

[0044] The cathode is composed of a cathode current collector and a cathode active material coated on the lower and upper surfaces of the cathode current collector.

[0045] The negative current collector is generally made with a thickness of 3 to 500 μm. Such a negative current collector is not particularly limited as long as it is conductive without causing chemical changes in the battery, and for example, copper, stainless steel, aluminum, nickel, titanium, calcined carbon, copper or stainless steel surface treated with carbon, nickel, carbon, silver, etc., and aluminum-cadmium alloy may be used.

[0046] In addition, fine irregularities can be formed on the surface to strengthen the bonding strength of the cathode active material, and it can be used in various forms such as films, sheets, foils, nets, porous materials, foams, and nonwoven materials.

[0047] Of course, a conductive material and a binder can be additionally mixed into the cathode active material and coated onto the cathode current collector.

[0048] The separator prevents a short circuit between the aforementioned cathode and anode and enables only the movement of lithium ions. The material of such a separator is preferably selected from polyethylene, polypropylene, a polyethylene / polypropylene double layer, a polyethylene / polypropylene / polyethylene triple layer, a polypropylene / polyethylene / polypropylene triple layer, and organic fiber filter paper, but is not limited thereto.

[0050] FIG. 2 is a perspective view for explaining a pouch-type secondary battery pressure jig according to one embodiment of the present invention, FIG. 3 is a drawing for explaining a first pressure part and a second pressure part of a pouch-type secondary battery pressure jig according to one embodiment of the present invention, FIG. 4 is a drawing for explaining the appearance of the first pressure part and the second pressure part of a pouch-type secondary battery pressure jig according to one embodiment of the present invention applying pressure to a pouch-type secondary battery. In addition, FIG. 5 is a perspective view for explaining a second pressure plate of a pouch-type secondary battery pressure jig according to one embodiment of the present invention, FIG. 6 is a cross-sectional view for explaining the second pressure plate shown in FIG. 5.

[0051] Referring to FIGS. 2 to 6, the pouch-type secondary battery pressurizing jig according to the present invention includes a first pressurizing unit (100), a second pressurizing unit (200), an air injection unit (300), a measuring unit (400), and a control unit (not shown).

[0052] First, the first pressure unit (100) may include a first pressure plate (110), a first driving unit (120), and a pressure sensor (130).

[0053] The first pressure plate (110) may be provided so that the second surface (12) of the pouch-type secondary battery (10) is seated thereon. For example, based on FIG. 3, the second surface (12) of the pouch-type secondary battery (10) may be the lower surface of the pouch-type secondary battery (10), and the first pressure plate (110) may be provided so as to be located on the second direction side of the pouch-type secondary battery (10).

[0054] Additionally, the first pressure plate (110) may include a third surface (111) located in the first direction and a fourth surface (112) located in the second direction. The third surface (111) of the first pressure plate (110) may be in contact with the second surface (12) of the pouch-type secondary battery (10). Also, the shaft (121) of the first driving unit (120) may be connected to the fourth surface (112) of the first pressure plate (110).

[0055] The first driving unit (120) is connected to the fourth surface (112) of the first pressure plate (110) through an axis (121) and supports the first pressure plate (110) and can move the first pressure plate (110) toward the first direction.

[0056] For example, the first driving unit (120) may be configured to support the pouch-type secondary battery (10) or to provide backup in response to the force in the second direction when receiving force in the second direction from the second pressurizing unit (200). For example, such a first driving unit (120) may be configured as a backup cylinder.

[0057] Additionally, the pressure sensor (130) may be provided to measure the force in the second direction when the pouch-type secondary battery (10) receives force in the second direction from the second pressure unit (200). Such a pressure sensor (130) may be provided as a press load cell.

[0058] At this time, the first driving unit (120) can provide a force toward the first direction to the second surface (12) of the pouch-type secondary battery (10) in response to the force toward the second direction measured through the pressure sensor (130).

[0059] The second pressure unit (200) may include a second pressure plate (210) and a second driving unit (220). The second pressure plate (210) may be in contact with the first surface (11) of the pouch-type secondary battery (10). For example, based on FIG. 3, the first surface (11) of the pouch-type secondary battery (10) may be the upper surface of the pouch-type secondary battery (10), and the second pressure plate (210) may be provided to be located on the first direction side of the pouch-type secondary battery (10).

[0060] Additionally, the second pressure plate (210) may be spaced apart from the first pressure plate (110) in the first direction. That is, the second pressure plate (210) and the first pressure plate (110) may be provided in a spaced-apart state from each other, and a pouch-type secondary battery (10) may be placed in the gap formed between the first pressure plate (110) and the second pressure plate (210).

[0061] The second pressure plate (210) may include a fifth surface (211) located in the first direction and a sixth surface (212) located in the second direction. The sixth surface (212) of the second pressure plate (210) may be in contact with the first surface (11) of the pouch-type secondary battery (10). Additionally, the shaft (221) of the second driving unit (220) may be connected to the fifth surface (211) of the second pressure plate (210).

[0062] Additionally, the sixth surface (212) of the second pressure plate (210) may be provided with a plate containing Cu (or Brass) to check whether there is electrical connection with the first surface (11) of the pouch-type secondary battery (10).

[0063] Additionally, the second pressure plate (210) may be provided with an air hole (213) formed so that the fifth surface (211) and the sixth surface (212) are connected. Multiple air holes (213) may be formed in the central portion of the second pressure plate (210) that contacts the first surface (11) of the pouch-type secondary battery (10). For example, multiple air holes (213) may be arranged with a width or length corresponding to the size of the first surface (11) of the pouch-type secondary battery (10).

[0064] The second driving unit (220) of the second pressurizing unit (200) has an axis (221) connected to the fifth surface (211) of the second pressurizing plate (210) and can move the second pressurizing plate (210) toward the second direction. At this time, the second driving unit (220) moves the second pressurizing plate (210) toward the second direction and can provide force toward the second direction to the first surface (11) of the pouch-type secondary battery (10).

[0065] Accordingly, the second pressurizing unit (200) may be configured to press the first surface (11) of the pouch-type secondary battery (10) through the second pressurizing unit (220).

[0066] The second pressurizing unit (200) allows the second driving unit (220) to move the second pressurizing plate (210) toward the second direction to pressurize the pouch-type secondary battery (10), and the first pressurizing unit (100) can provide the first driving unit (110) with force toward the first direction in response to the force toward the second direction received by the second pressurizing unit (200). These first pressurizing unit (100) and second pressurizing unit (200) can pressurize the pouch-type secondary battery (10) in the first direction and the second direction.

[0067] Meanwhile, the air injection unit (300) may be provided to inject air onto the first surface (11) of the pouch-type secondary battery (10) through the air hole (213) formed in the second pressure plate (210).

[0068] The air injection unit (300) may be provided to be located on the first direction side of the second pressure plate (210). In other words, the air injection unit (300) may be provided to be located on the first direction side of the second pressure plate (210), and the nozzle for injecting air may be positioned toward the air hole (213) to inject air toward the second direction.

[0069] Additionally, when the first surface (11) of the pouch-type secondary battery (10) is attached to the sixth surface (212) of the second pressure plate (210), the air injection unit (300) can inject air onto the first surface (11) of the pouch-type secondary battery (10) to detach the pouch-type secondary battery (10) from the second pressure plate (210).

[0070] For example, detaching the pouch-type secondary battery (10) from the second pressure plate (210) may mean that when the second pressure unit (200) presses the pouch-type secondary battery (10) and moves the second pressure plate (210) in the first direction, the air injection unit (300) injects air onto the first surface (11) of the pouch-type secondary battery (10) and then moves the second pressure plate (210) in the first direction to detach the pouch-type secondary battery (10) from the second pressure plate (210).

[0071] The surface pressure and pickup error of the pouch-type secondary battery (10) can be prevented by these air injection units (300) and air holes (213).

[0072] A measuring unit (400) may be provided to measure insulation resistance between a pouch-type secondary battery (10) and a first pressure plate (110) or a second pressure plate (210). For example, the measuring unit (400) may measure insulation resistance between the first pressure plate (110) or the second pressure plate (210) and the pouch-type secondary battery (10) by contacting the first pressure plate (110) or the second pressure plate (210) and the two lead portions of the pouch-type secondary battery (10) with conductive rubber.

[0073] Since the method of measuring the insulation resistance of a pouch-type secondary battery (10) using a measuring unit (400) can measure the insulation resistance using a method commonly known in the field, a more detailed explanation will be omitted.

[0074] Additionally, a control unit (not shown) may be provided to determine whether the pouch-type secondary battery (10) is defective through the insulation resistance measured by the measurement unit (400). For example, the control unit (not shown) may determine whether the pouch-type secondary battery (10) is defective by measuring the insulation of the pouch-type secondary battery (10) through the resistance measured between the pouch-type secondary battery (10) and the first pressure plate (110) or the second pressure plate (210) via the measurement unit (400).

[0075] For example, a control unit (not shown) can pre-set a reference value for resistance, current, or voltage and determine whether the pouch-type secondary battery (10) is defective by comparing the resistance, current, or voltage measured through the measurement unit (400) with the pre-set reference value.

[0076] Since the method for determining whether a pouch-type secondary battery is defective by the control unit (not shown) can be implemented in various ways obvious to those skilled in the art, a more detailed explanation is omitted.

[0077] Such a control unit (not shown) may be implemented in the form of hardware or software, or may be implemented in a combined form of hardware and software. The control unit may be implemented in the form of a computing device (computational unit) such as a microprocessor, but is not limited thereto and may be implemented in various forms obvious to those skilled in the art.

[0079] Hereinafter, with reference to FIGS. 2 to 6, a method for inspecting a pouch-type secondary battery using a pouch-type secondary battery pressurizing jig according to one embodiment of the present invention will be described.

[0080] A method for inspecting a pouch-type secondary battery according to the present invention comprises: (S1) a step of placing a pouch-type secondary battery (10) on a first pressure plate (110); (S2) a step of moving a second pressure plate (210) toward a second direction to apply pressure to the pouch-type secondary battery (10); (S3) a step of measuring the insulation resistance of the pouch-type secondary battery (10) through a measurement unit (400); and (S4) a step of moving the second pressure plate (210) toward a first direction to release the pressure on the pouch-type secondary battery (10).

[0081] For example, in step (S1), the pouch-type secondary battery (10) can be positioned to be seated on the third surface (111) of the first pressure plate (110).

[0082] Additionally, in step (S3), a control unit (not shown) can determine whether the pouch-type secondary battery (10) is defective based on the insulation resistance value of the pouch-type secondary battery (10) measured through the measurement unit (400). For example, in step (S3), the control unit (not shown) can compare a preset reference value with the insulation resistance of the pouch-type secondary battery (10) measured through the measurement unit (400), and if the insulation resistance of the pouch-type secondary battery (10) is less than the preset reference value, the pouch-type secondary battery (10) can be determined to be defective.

[0083] In addition, the insulation resistance value of the pouch-type secondary battery (10) measured prior to step (S1) can be measured in advance, and the insulation resistance value of the pouch-type secondary battery (10) measured in step (S3) can be compared to determine whether the pouch-type secondary battery (10) is defective.

[0084] (S4) In step, the air injection unit (300) can inject air onto the first surface (11) of the pouch-type secondary battery (10) through the air hole (213). For example, when the second pressure plate (210) moves in the first direction, the air injection unit (300) injects air onto the first surface (11) of the pouch-type secondary battery (10) so that the first surface (11) of the pouch-type secondary battery (10) moves together with the sixth surface (212) of the second pressure plate (210) attached thereto, thereby preventing a pickup error from occurring.

[0086] As specific parts of the present invention have been described in detail above, it is obvious to those skilled in the art that such specific descriptions are merely preferred embodiments and do not limit the scope of the invention, and that various changes and modifications are possible within the scope and spirit of the invention, and that such variations and modifications fall within the scope of the appended claims. Explanation of the symbols

[0087] 10: Pouch-type secondary battery 11: Page 1 12: Page 2 100: 1st pressurization unit 110: First pressure plate 111: Page 3 112: Page 4 120: First drive unit 121: Shaft of the first drive unit 200: 2nd pressurization unit 210: Second pressure plate 211: Page 5 212: Page 6 213: Airhole 220: Second drive unit 221: Shaft of the second drive unit 300: Air injection unit 400: Measurement unit

Claims

Claim 1 A pouch-type secondary battery pressure jig characterized by comprising: a first pressure unit including a first pressure plate provided to allow a second surface of the pouch-type secondary battery to be seated; a second pressure unit provided to press the first surface of the pouch-type secondary battery, including a second pressure plate provided with an air hole formed to communicate with a fifth surface and a sixth surface; and an air injection unit provided to inject air into the first surface of the pouch-type secondary battery through the air hole. Claim 2 A pouch-type secondary battery pressurizing jig according to claim 1, wherein the first pressurizing unit comprises: a first pressurizing plate including a third surface that contacts a second surface of the pouch-type secondary battery; and a first driving unit having an axis connected to a fourth surface of the first pressurizing plate to support the first pressurizing plate and moving the first pressurizing plate toward a first direction. Claim 3 A pouch-type secondary battery pressurizing jig according to claim 2, wherein the first pressurizing unit further includes a pressurizing sensor that measures the force in the second direction when the pouch-type secondary battery receives a force in the second direction by the second pressurizing unit. Claim 4 A pouch-type secondary battery pressure jig according to claim 3, wherein the first driving unit provides a force toward the first direction side to the second surface of the pouch-type secondary battery in response to a force toward the second direction side measured through the pressure sensor. Claim 5 A pouch-type secondary battery pressurizing jig according to claim 1, wherein the second pressurizing unit comprises: a second pressurizing plate in contact with a first surface of the pouch-type secondary battery; and a second driving unit having an axis connected to a fifth surface of the second pressurizing plate and moving the second pressurizing plate toward a second direction. Claim 6 A pouch-type secondary battery pressure jig according to claim 5, characterized in that the second driving unit moves the second pressure plate toward the second direction and provides a force toward the second direction with respect to the first surface of the pouch-type secondary battery. Claim 7 A pouch-type secondary battery pressure jig according to claim 1, characterized in that the second pressure plate is spaced apart from the first pressure plate in the first direction. Claim 8 A pouch-type secondary battery pressure jig according to claim 1, characterized in that the air holes are formed in a plurality in the central portion of the second pressure plate that contacts the first surface of the pouch-type secondary battery. Claim 9 A pouch-type secondary battery pressure jig according to claim 8, wherein the air injection unit sprays air onto the first surface of the pouch-type secondary battery when the first surface of the pouch-type secondary battery is attached to the second pressure plate, thereby causing the pouch-type secondary battery to detach from the second pressure plate. Claim 10 A pouch-type secondary battery pressure jig according to claim 1, characterized by including a measuring unit for measuring insulation resistance between the pouch-type secondary battery and the first pressure plate or the second pressure plate. Claim 11 A pouch-type secondary battery pressurizing jig characterized in that, in claim 10, it further includes a control unit that determines whether the pouch-type secondary battery is defective through the insulation resistance measured by the measurement unit. Claim 12 A method for inspecting a pouch-type secondary battery using a pouch-type secondary battery pressure jig according to any one of claims 1 to 11, comprising: (S1) a step of placing the pouch-type secondary battery on the first pressure plate; (S2) a step of moving the second pressure plate toward the second direction to pressure the pouch-type secondary battery; (S3) a step of measuring the insulation resistance of the pouch-type secondary battery through a measuring unit that measures the insulation resistance between the pouch-type secondary battery and the first pressure plate or the second pressure plate; and (S4) a step of moving the second pressure plate toward the first direction to release the pressure on the pouch-type secondary battery; characterized by comprising: (S1) a step of placing the pouch-type secondary battery on the first pressure plate; (S2) a step of moving the second pressure plate toward the first direction to pressure the pouch-type secondary battery. Claim 13 A method for inspecting a pouch-type secondary battery according to claim 12, wherein in step (S3) above, the control unit determines whether the pouch-type secondary battery is defective through the insulation resistance value of the pouch-type secondary battery measured through the measurement unit. Claim 14 A method for inspecting a pouch-type secondary battery according to claim 12, wherein, in step (S4) above, the air injection unit injects air through the air hole onto the first surface of the pouch-type secondary battery.

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