KR20100128927A - Jig apparatus for checking insulation of cell module assembly - Google Patents

Abstract

PURPOSE: A jig device is provided to inspect the insulating property of a valid cell module assembly by simply inspecting whether the contact part of a probe is contacted with each aluminum layer. CONSTITUTION: A cell module assembly(200) is contacted with the aluminum layer of a plurality of pouch battery cells. A contact part(310) is contacted with an aluminum layer by a restoration force. The contact part is made of a conductive elastic material having a bent shape. An interface part(320) is electrically connected to the contact part. The interface part is connected to an external device in order to inspect an insulating property.

Description

JIG APPARATUS FOR CHECKING INSULATION OF CELL MODULE ASSEMBLY}

The present invention relates to a jig device for inspecting or measuring the insulation of a cell module assembly composed of a plurality of pouch-type battery cells, more specifically a pouch type selected from the plurality of pouch-type battery cells constituting the cell module assembly. A jig device is configured to maintain electrical contact with an aluminum pouch of a battery cell by restoring force.

A cell module assembly (CMA) refers to a combination formed of a plurality of pouch-type battery cells, and a pouch-type battery cell (pouch battery cell) is provided with a battery cell therein, and a polymer corresponding to the pouch. It means a battery cell formed of a packaging material surrounding the battery cell.

As shown in FIG. 1, the pouch battery cell 100 includes an electrode assembly 120 formed of a positive electrode current collector, a separator, a negative electrode current collector, and the like, and a pouch exterior material 110 containing the electrode assembly 120 therein. It is common to get there.

In more detail, the pouch battery cell is a positive electrode tab extending from the positive electrode collector and the negative electrode collector of the electrode assembly 120 which is a basic configuration for the chemical reaction of the secondary battery as shown in FIG. (Lead) 130 and the negative electrode tab (lead) 140 has a structure including.

The electrode assembly 120 is accommodated in an inner space provided in the upper and lower pouches 110, and the positive electrode tab 130 and the negative electrode tab 140 are exposed to the outside for electrical connection with an external terminal.

In the combined pouch battery cell, the positive electrode tab 130 and the negative electrode tab 140 may be formed on the same side as illustrated in FIG. 2, and according to the exemplary embodiment, the positive electrode tab 130 may be formed as illustrated in FIG. 3. And the negative electrode tab 140 may be formed on different sides, respectively.

The pouch 110 serves to protect a battery cell made of an electrolyte solution introduced into the electrode assembly and a subsequent process for manufacturing a secondary battery. In addition, the pouch 110 is configured in the form of an aluminum thin film interposed to supplement the electrochemical properties of the battery cell and to increase the heat dissipation, etc. The aluminum thin film is made of polyethylene to ensure insulation between the battery cell and the outside An insulating layer coated with an insulating material such as PET (PolyEthylene Terephthalate) resin or nylon (nylon) resin is formed on the outside.

The pouch 110 is bonded to the upper pouch and the lower pouch at the outer circumferential surface by heat fusion, etc., as shown in FIG. 4, which is an enlarged view of the portion A of FIG. 3, to the interface between the upper pouch and the lower pouch. To this end, an adhesive layer 115 is formed of unstretched polypropylene (CPP, Casted PolyPropylene) or polypropylene (PP, PolyPropylene).

That is, the pouch 110 has a predetermined layer structure having an insulating layer 111, an aluminum layer 113, an adhesive layer 115, an aluminum layer 113, and an insulating layer 111 as shown in FIG. 4. Is made of.

On the other hand, the pouch of the pouch type secondary battery 100 having the above structure may be damaged for various reasons in various processes. For example, in the process of accommodating the electrode assembly 120 inside the pouch 110, protrusions such as the electrode tabs 130 and 140 may be cracked due to a crack or the like in the pouch or the PP layer or the insulating layer. It may damage it.

In addition, when the pouch is sealed, heat is applied from the outside, and minute pinholes may be generated even by the applied heat, or the pouch may be damaged by an adhesive layer due to an internal wound. Not only for this reason, but also due to external factors in physical form such as drop, impact, pressure, or compression, the adhesive layer formed in the thin film form may be damaged.

When the adhesive layer is damaged in this way, the internal electrolyte may leak into the aluminum layer, the leaked electrolyte may corrode the aluminum layer, and the corroded aluminum layer may not perform its original function.

In addition, when the internal structure of the pouch battery cell 100 is damaged or damaged due to an external physical shock or the like, and the insulation of the pouch battery cell 100 is destroyed, the battery cell may not maintain a steady state voltage and may cause a low voltage. And a swelling phenomenon of the internal battery cell.

This problem may cause a series of problems, such as explosion of the pouch battery cell and the cell module assembly consisting of a plurality of pouch battery cells may be fatal to the user or the equipment to be mounted, so the pouch battery cell 100 or the cell module assembly It is desirable to operate the insulation to thoroughly remove the defective product.

Meanwhile, the cell module assembly 200 including a plurality of pouch battery cells as described above may be configured as a battery module in which a plurality of pouch battery cells 100 are connected in series with each other as shown in FIG. 5. . According to an embodiment, a plurality of pouch battery cells constituting the cell module assembly may be connected in parallel or in parallel and parallel type.

As shown in FIG. 5, the positive electrode tab 130 of the n-th pouch battery cell and the negative electrode tab 140 of the n + 1-th pouch battery cell are connected by laser welding or the like after being bent. If the voltage of one pouch battery cell is K (V) and there are eight pouch battery cells constituting the cell module assembly, the voltage between the positive electrode (A) of the cell module assembly and the negative electrode (B) of the cell module assembly is 8K (V). Becomes

 In the following description, each pouch battery cell is connected in series, and the number of pouch battery cells constituting the cell module assembly will be described by way of example.

As shown in FIG. 5, the cell module assembly 200 additionally includes eight pouch battery cells 100 connected in series, a housing means, an electrical connection means, or a guiding means. Although manufactured in the same form, a portion of the pouch 110 of each pouch battery cell 100 is exposed to the outside.

A conventionally used method for inspecting insulation resistance and the like of the cell module assembly 200 includes one reading means (probe) 31 at the electrode A of the cell module assembly 200 as shown in FIG. 7. To the aluminum layer 110 of the pouch to be in electrical contact with the outside, and one of the metering means (probe) 32 is electrically contacted, and the electrical characteristic value between the two probes 31 and 32 is measured. It is carried out by measuring with).

In order to measure insulation in the above manner, the probe means (probe) 32 must be brought into contact with the aluminum layer 113 (see FIG. 4), but the probe 32 and the aluminum layer 113 are in point contact. Since the contact is not high contact reliability, of course, when the force is applied for physical contact between the probe 32 and the aluminum layer 123, the outer peripheral surface of the pouch is not easy to support the force applied by the material properties, so it is easy to deform It is difficult to maintain physical contact for electrical conduction between the probe 32 and the aluminum layer 113, and as a result, the inspection process becomes difficult.

In addition, the cell module assembly is typically composed of a plurality of battery cells, because a plurality of battery cells must be measured one by one in order to determine the insulation of the cell module assembly itself has a problem that the time and cost required to increase. .

As a result, the insulation test of the pouch battery cell and the cell module assembly due to such various circumstances has a problem that the reliability of the pouch battery cell and the cell module assembly is significantly degraded and the test takes a lot of time. It will be exposed to problems such as breakage. In addition, such a conventional method is an obstacle to the automation of insulation inspection due to the above problems.

In addition, as shown in FIG. 8, the method of performing the insulation test by the cell module assembly unit using the metering means 32 made of a conductive material that can be connected to all the selected pouch aluminum layers may partially solve the above problem. .

However, as shown in FIG. 9, the outer periphery of the pouches of the plurality of pouch battery cells 100 may have the same size and shape in a process of manufacturing a unit pouch battery cell or a process of packaging a plurality of pouch battery cells into a cell module assembly. It is extremely difficult to have.

In this state, in order to check the insulation of the cell module assembly by contacting the metering means 32 with all or a plurality of selected aluminum layers of the plurality of pouch battery cells constituting the cell module assembly, the aluminum with the metering means 32 Significant physical pressure must be applied to the layer, in which case some may touch the metering means 32, such as the outer circumferential surface of the aluminum layer shown in FIG. 9, but some may bend by excessive force, resulting in deformation of the appearance. The other part is still not in contact with the metering means 32 may reduce the reliability of the insulation test of the cell module assembly unit.

The present invention was devised to solve such a problem in the above-described background, and in performing the insulation inspection of the cell module assembly unit, all or a plurality of selected aluminum layers of the plurality of pouch battery cells constituting the cell module assembly are all provided. An object of the present invention is to provide a jig device capable of providing reliable contact means.

In addition, an object of the present invention is to provide a jig device capable of performing a more substantial and effective inspection by inspecting whether or not the contact means for the insulation inspection is actually in contact with the aluminum layer of the pouch battery cell to be inspected.

Other objects and advantages of the present invention will be described below and will be appreciated by the embodiments of the present invention. In addition, the objects and advantages of the present invention can be realized by the configuration and combination of configurations shown in the claims.

The inspection apparatus of the present invention for achieving the above object is a jig device for inspecting the insulation of the cell module assembly in contact with the aluminum layer of the plurality of pouch battery cells constituting the cell module assembly, the aluminum layer of the pouch battery cell A contact module having a conductive elastic material having a bent shape such that a portion of the contact portion is in contact with the aluminum layer by a restoring force; And an interfacing module electrically connected to the contact module and connected to an external device for the insulation test.

In addition, the contact module is mounted, it may be configured to further comprise a guiding module coupled to the interfacing module so that the contact module and the interfacing module is electrically connected.

Here, the contact module is a mounting portion mounted to the guiding module; And an aluminum contact portion extending in a bent form from the mounting portion and contacting the aluminum layer of the pouch battery cell.

In addition, the aluminum contact portion of the contact module may be configured to be inclined in the direction of the aluminum layer of the pouch battery cell, it may be configured in the form that the thickness becomes thicker toward the end or the end portion is separated.

In order to implement a more preferred embodiment, the guiding module of the present invention includes a groove portion on which the mounting portion of the contact module is mounted; And a guiding protrusion located between the aluminum contacts of the contact module and protruding in the direction between the aluminum layers of the pouch battery cell.

In addition, the interfacing module may have a contact pattern in electrical contact with the mounting portion of the contact module, and a wiring pattern for electrical connection with the external device may be formed in the form of a PCB substrate formed by extending the contact pattern. Do.

On the other hand, the jig device of the present invention for achieving the object according to another aspect of the present invention is in contact with the aluminum layer of the plurality of pouch battery cells constituting the cell module assembly jig device for inspecting the insulation of the cell module assembly. A first contact module made of a conductive elastic material having a shape in which a portion of the pouch battery cell contacting the aluminum layer is bent to maintain contact with the aluminum layer by a restoring force; A second contact module made of a conductive elastic material that is in contact with the same aluminum layer as the first contact module and has a shape in which a portion of the pouch battery cell contacting the aluminum layer is bent to maintain contact with the aluminum layer by a restoring force; And an interfacing module electrically connected to the first and second contact modules and connected to an external device for an insulation test.

The jig device for the insulation test of the cell module assembly according to the present invention provides the advantage of quickly measuring and inspecting the insulation at the cell module assembly level.

Furthermore, the jig device according to the present invention can be reliably contacted with all the pouch aluminum layers of the cell module assembly to be measured, and also can sufficiently increase the connection reliability without applying excessive force, thereby deforming or damaging the aluminum pouch. Can be effectively prevented and through this, it is possible to provide an effect of minimizing safety accidents, such as a battery pack secondary to the cell module assembly, and further, the cell module assembly.

In addition, in order to further increase the reliability of the insulation inspection of the cell module assembly unit, it is possible to effectively inspect whether or not contact means such as a probe for insulation inspection is actually in contact with each aluminum layer with a simple structure, thereby providing a more practical and effective cell module. Insulation inspection of the assembly can be performed.

In addition, when the insulation test of the cell module assembly itself is performed prior to the insulation test of the individual battery cells, the insulation test of the individual battery cells may be omitted according to the preceding test result, so that the actual test of all battery cells is performed. The same results can be achieved without the need to significantly reduce the cost and time required for inspection.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

10 is an exploded perspective view of the jig device according to an embodiment of the present invention. As shown in FIG. 10, the jig device (hereinafter, referred to as jig device) 300 for insulation inspection of the cell module assembly according to the present invention includes a contact module 310, an interfacing module 320, and a guiding module 330. It is configured to include).

The interfacing module 320 is electrically connected to the contact module 310 to be described later, and transmits an electrical signal from the contact module to an external device that measures and inspects an insulating characteristic value (resistance, voltage, or current). Perform. A detailed configuration of the interfacing module 320 will be described later.

The guiding module 330 functions as a physical configuration that serves as a base on which the contact module 310 and the interfacing module 320 are mounted so that the contact module 310 and the interfacing module 320 are electrically connected. . The detailed configuration of the guiding module 330 will also be described later.

As shown in FIG. 10, the contact module 310 constituting the present invention constitutes the pouch 110, more specifically, the pouch 110 of the pouch battery cell 100 constituting the cell module assembly 200. Mean means contacting the aluminum layer 113. The contact module 310 may be provided in a number necessary to contact all the pouch battery cells constituting the cell module assembly or a plurality of selected pouch battery cells.

The contact module 310 is made of a conductive elastic material, and as shown in FIG. 11, a portion 313 of the pouch battery cell 100 contacting the aluminum layer 113 is restored by the restoring force. The contact module 310 is preferably configured to be bent or curved or bent to maintain effective and continuous contact. The contact module 310 is made of a silicone material in consideration of physical characteristics such as conductivity and elastic force. Most preferably, it is composed of a conductive elastomer.

The contact module 310 is provided with a plurality of contacts respectively to the aluminum layer 113 of the individual pouch battery cells are independent and in contact with the aluminum layer 113 of each pouch battery cell, so that the appearance of each of the plurality of pouches 110 Regardless of size or shape, it can effectively contact all pouches 110 to be inspected.

In addition, since the contact module 310 is made of an elastic material such as the bent shape as described above, it is not necessary to apply an excessive force to physically contact all selected pouches 110 can effectively prevent damage to the outer peripheral surface of the pouch. .

In order to implement a more preferred embodiment, the contact module 310 may be composed of a mounting portion 311 and an aluminum contact portion 313, as shown in Figure 11, the mounting portion 311 is the guiding module 330 The aluminum contact portion 313 is a portion contacting the pouch aluminum layer 113 of the pouch battery cell 100, and is bent or curved or bent in a portion of the mounting portion 311. It is formed extending in the back.

The aluminum contact portion 313 is in the direction of the pouch 110 of the pouch battery cell 100, that is, the pouch aluminum layer, as shown in FIG. 11 to increase electrical contact reliability with the aluminum layer 113 of the pouch battery cell. It is more preferable to comprise so that it may incline in the form inclined to (113) direction.

In addition, in order to increase contact holding force and to provide flexible restoring force to the aluminum layer when the aluminum layer 113 is in contact, the aluminum contact portion 313 has a thickness a 'of the distal end portion as shown in FIG. The aluminum contact portion 313 is formed in a form thicker than the thickness (a) of the portion, or in accordance with an embodiment, the aluminum contact portion 313 is formed in a form in which the thickness gradually increases from the portion extending from the mounting portion 311 toward the distal portion. More preferred.

In addition, as shown in FIG. 11 when the end of the aluminum contact portion 313 of the contact module 310 is formed in a form that is separated into two or more, independent restoring force for each contacted aluminum layer 110 is It can be applied so that an efficient application form can be realized according to embodiment.

Hereinafter, a detailed configuration of the interfacing module 320 will be described with reference to FIG. 12, which is a rear view of the interfacing module 320 of the jig device 300 according to the present invention.

As illustrated in FIG. 12, the interfacing module 320 constituting the jig device 300 may include a contact pattern 321, a wiring baton 323, and a connection terminal 325. As described above, the interfacing module 320 is electrically connected to the contact module 310 and corresponds to a means for mediating an external measurement or inspection device with the contact module 310.

The contact pattern 321 of the interfacing module 320 may be formed by patterning on a PCB (PCB) substrate. As shown in FIG. 10, the contact pattern 321 of the interfacing module 320 may include a contact module ( 310, in particular, corresponds to a pattern portion configured to be in electrical contact with the mounting portion 310 of the contact module 310.

The wiring pattern 323 may also be formed by patterning on a PCB substrate, and the wiring pattern 323 is formed between the connection terminal 325 and the contact pattern 325 for connection of an external device. To mediate the electrical connections between them.

Hereinafter, the guiding module 330 of the jig device 300 according to the present invention will be described with reference to FIG.

The guiding module 330 of the present invention may include a groove 331 and a guiding protrusion 333 as shown in Figure 13, the groove 331 is a contact module as described above The mounting portion 311 of the 310 corresponds to a portion to be mounted by a fitting method, and the like, and the groove portion 331 may be provided as necessary as shown in FIGS. 10 and 13.

In addition, the guiding protrusion 333 has an aluminum mounting portion 313 of the contact module 310 disposed therebetween, and the cell module assembly in which the jig device 300 of the present invention is an inspection target for insulation inspection. The guiding protrusion 333 is provided so that the contact module 310 can be moored effectively to the pouch aluminum layer 113 of each pouch battery cell 100 of the cell module assembly 200 when approaching and moving to 200. It is preferable to comprise in the form which protrudes in the direction between the aluminum layers of a pouch battery cell.

Hereinafter, a jig device according to another preferred embodiment of the present invention for achieving the object of another aspect of the present invention will be described with reference to FIGS. 14 to 16.

Since the jig device 300 of the present invention described below with reference to FIG. 14 has the technical contents corresponding to the above-described embodiment, the detailed description in the overlapping range is replaced with the above description, and the present embodiment will be described below. In this context, the new contents will be explained mainly.

As shown in FIG. 14, the jig device 300 according to another exemplary embodiment of the present invention includes a first contact module 310-1, a second contact module 310-2, and a first interfacing module 320-. 1), the second interfacing module 320-2 and the guiding module 330 are configured.

The first contact module 310-1 is made of a conductive elastomer such as silicon and is in contact with the aluminum layer 113 of the pouch battery cell 100. It has a bent shape so that contact with it is maintained.

In addition, the second contact module 310-2 is in contact with the same aluminum layer as the first contact module 310-1, and like the first contact module 310-1, the aluminum layer of the pouch battery cell. The contact portion is made of a conductive elastic material having a bent shape such that the contact with the aluminum layer is maintained by the restoring force.

In the case where the contact module is dualized as the first and second contact modules as described above, the contact module 310 is connected to the aluminum layer 113 while performing the insulation test of the unit of the cell module assembly 200 described above. The actual contact can also be checked efficiently.

For further explanation, when the insulation of the cell module assembly 200 is inspected, it may be determined that the insulation cell is sufficiently insulated if the measured insulation resistance value is larger than the reference insulation resistance value. have.

However, even when the metering means or the like does not actually touch the aluminum layer, the measured resistance value is considerably large (ideally infinite), resulting in a measurement result larger than the standard insulation resistance value as in the case of actual good products. In this case, a valid inspection may not be performed, but a problem may arise in that the cell module assembly to be inspected is in good condition without a specific validity.

In order to fundamentally solve this problem, if the contact module is dualized as described above, and the first and second contact modules are configured to touch the aluminum layer of the same pouch 110, both the contact module and the aluminum layer are conductive. Therefore, as shown in FIG. 15, a closed circuit is formed in the order of the first contact module, the aluminum layer, and the second contact module.

That is, it may be more preferable to proceed with the inspection of whether the closed circuit is configured as described above prior to the insulation inspection of the cell module assembly unit. In this case, the insulation resistance between the first contact module 310-1 and the second contact module 310-2 is considerably smaller in view of the error range and the resistance of the electric element. It becomes.

In contrast to the above, if the contact module is not actually contacted, the open circuit is formed instead of the closed circuit, so the insulation resistance between the first contact module 310-1 and the second contact module 310-2 is ideally infinite. Becomes

Therefore, the present embodiment can effectively check whether or not the actual contact module is in contact with the aluminum layer by using such electrical properties, and thus it is possible to perform a more substantial insulation test of the cell module assembly unit.

That is, it is preferable to check whether the actual physical contact is made by the configuration as described above, and to perform the inspection to measure the insulation resistance of the cell module assembly unit in earnest after the inspection passes.

In addition, the first interfacing module 320-1 of the jig device 300 according to the present exemplary embodiment may be configured in the form of a PCB substrate, and is electrically connected to the mounting portion 313 of the first contact module 310-1. A contact pattern 321 in contact with the wiring pattern 323 for electrical connection with the external device is formed to extend to the contact pattern 321.

The second interfacing module 320-2 is configured to correspond to the first interfacing module 320-1 except that the object to be electrically connected is the second contact module 310-2.

The first and second interfacing modules may be implemented in a physically divided form as in the embodiment of FIG. 14, and may be configured to perform the functions of the first and second interfacing modules in a single form. Of course.

In addition, the guiding module 330 of the present invention according to the present embodiment may include a first groove 331, a second groove 332 and the guiding protrusion 333 as shown in FIG. have.

The first groove is formed on the upper surface of the guiding module 330, the mounting portion 311 of the first contact module 310-1 is mounted, the second groove is formed on the lower surface of the guiding module 330 The mounting part 311 of the second contact module 310-2 is mounted.

In addition, the guiding protrusion 333 is formed such that the aluminum contact portion 313 of the first contact module 310-1 and the aluminum contact portion 313 of the second contact module 310-2 face each other. It is positioned and has a shape protruding in the aluminum layer direction of the pouch battery cell.

Although the present invention has been described above by means of limited embodiments and drawings, the present invention is not limited thereto and will be described below by the person skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of the claims.

In describing the preferred embodiments of the present invention, the layers, portions, or regions represented in the drawings may be somewhat exaggerated symbolically for clarity of explanation and understanding of the present invention. The terms "2", etc. should be interpreted as terms used to relatively distinguish the composition of each other, rather than to distinguish the two, or to express order or rank on an absolute physical basis.

The following drawings, which are attached to this specification, illustrate exemplary embodiments of the present invention, and together with the detailed description of the present invention serve to further understand the technical spirit of the present invention, the present invention includes matters described in such drawings. It should not be construed as limited to.

1 is an exploded perspective view of a pouch battery cell according to one embodiment;

2 is a diagram illustrating a configuration of a pouch battery cell according to one embodiment;

3 is a diagram illustrating a configuration of a pouch battery cell according to another embodiment;

4 is an enlarged cross-sectional view of a portion A of the outer circumferential surface of the pouch battery cell of FIG. 3;

5 is a view illustrating a connection relationship between a plurality of pouch battery cells constituting a cell module assembly according to an embodiment;

6 is a view illustrating an appearance of a cell module assembly according to an embodiment;

7 is a view showing a method for checking the insulation of a conventional cell module assembly,

8 illustrates another method for inspecting insulation of a conventional cell module assembly;

9 is a view showing the damage or non-contact of the outer surface of the pouch according to the conventional method,

10 is an exploded perspective view of a jig device according to an embodiment of the present invention;

11 is a view of the contact module of the jig device according to the present invention;

12 is a rear view of an interfacing module of a jig device according to the present invention;

13 is a view of the guiding module of the jig device according to the present invention,

14 is an exploded perspective view of a jig device according to another preferred embodiment of the present invention;

15 is a schematic diagram of a method for inspecting actual physical contact through a jig device of the present invention;

16 is a view of the guiding module of the jig device according to another embodiment of the present invention.

Claims (16)

A jig device for inspecting the insulation of the cell module assembly in contact with the aluminum layer of the plurality of pouch battery cells constituting the cell module assembly, A contact module of a conductive elastic material having a shape in which a portion contacting the aluminum layer of the pouch battery cell is bent to maintain contact with the aluminum layer by a restoring force; And Jig device for insulating test of the cell module assembly, characterized in that it comprises an interfacing module electrically connected to the contact module and connected to an external device for the insulating test. The method of claim 1, And a guiding module to which the contact module is mounted, the guiding module coupled to the interfacing module such that the contact module and the interfacing module are electrically connected to each other. The method of claim 2, wherein the contact module, A mounting part mounted to the guiding module; And Jig device for insulating inspection of the cell module assembly, characterized in that it comprises an aluminum contact portion extending in a bent form in the mounting portion and in contact with the aluminum layer of the pouch battery cell. According to claim 3, The aluminum contact of the contact module, Jig device for insulating inspection of the cell module assembly, characterized in that inclined in the direction of the aluminum layer of the pouch battery cell. According to claim 3, The aluminum contact of the contact module, Jig device for insulating inspection of the cell module assembly, characterized in that the thickness becomes thicker toward the end. According to claim 3, The aluminum contact of the contact module, Jig device for the insulation test of the cell module assembly, characterized in that the distal end portion. The method of claim 3, wherein the guiding module, A groove part on which a mounting part of the contact module is mounted; And Jig device for insulating inspection of the cell module assembly, characterized in that it comprises a guiding protrusion protruding in the direction between the aluminum contacts of the contact module and the aluminum layer of the pouch battery cell. The method of claim 3, wherein the interfacing module, Insulation test of the cell module assembly, characterized in that the contact pattern is formed in electrical contact with the mounting portion of the contact module, the wiring pattern for the electrical connection with the external device is formed in the PCB substrate formed to extend the contact pattern. Jig device for. A jig device for inspecting the insulation of the cell module assembly in contact with the aluminum layer of the plurality of pouch battery cells constituting the cell module assembly, A first contact module made of a conductive elastic material having a shape in which a portion contacting the aluminum layer of the pouch battery cell is bent to maintain contact with the aluminum layer by a restoring force; A second contact module made of a conductive elastic material that is in contact with the same aluminum layer as the first contact module and has a shape in which a portion of the pouch battery cell contacting the aluminum layer is bent to maintain contact with the aluminum layer by a restoring force; And Jig device for insulating test of the cell module assembly, characterized in that it comprises an interfacing module electrically connected to the first and second contact module and connected to an external device for the insulating test. The method of claim 9, And a guiding module to which the first and second contact modules are mounted and coupled to the interfacing module so that the first and second contact modules and the interfacing module are electrically connected to each other. Jig device for insulation testing of assemblies. The method of claim 10, wherein the first and second contact module, A mounting part mounted to the guiding module; And A jig device for inspecting insulation of a cell module assembly, comprising: an aluminum contact portion extending in a bent form from the mounting portion and contacting an aluminum layer of the pouch battery cell. The method of claim 11, wherein the aluminum contact portion of the first and second contact module, Jig device for insulating inspection of the cell module assembly, characterized in that inclined in the direction of the aluminum layer of the pouch battery cell. The method of claim 11, wherein the aluminum contact portion of the first and second contact module, Jig device for insulating inspection of the cell module assembly, characterized in that the thickness becomes thicker toward the end. The method of claim 11, wherein the aluminum contact portion of the first and second contact module, Jig device for the insulation test of the cell module assembly, characterized in that the distal end portion. The method of claim 11, wherein the guiding module, A first groove part mounted on an upper surface of the mounting part of the first contact module; A second groove portion on which a mounting portion of the second contact module is mounted; And Jig for insulating inspection of the cell module assembly, characterized in that it comprises a guiding protrusion interposed between the aluminum contacts of the first and second contact module facing each other and protruding toward the aluminum layer of the pouch battery cell. Device. The method of claim 11, wherein the interfacing module, A first interfacing module in the form of a PCB substrate formed with a contact pattern in electrical contact with a mounting portion of the first contact module, and a wiring pattern for electrical connection with the external device extending on the contact pattern; And And a second interfacing module in the form of a PCB substrate formed with a contact pattern in electrical contact with the mounting portion of the second contact module, and a wiring pattern for electrical connection with the external device formed on the contact pattern. Jig device for insulation test of the cell module assembly.

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