Electrode assembly insertion guide

Abstract

The present disclosure relates to an electrode assembly insertion guide, the electrode assembly insertion guide comprising: a main body part detachably coupled to an edge of an opening part formed by opening one surface of the accommodating case; and a coupling portion formed by a surface of the main body portion facing the opening portion being recessed in a direction from an inside of the housing case toward the opening portion.

Description

Technical Field

[0001] This disclosure relates to an electrode assembly insertion guide. Background Technology

[0002] A rechargeable battery is a type of battery that converts electrical energy into chemical energy and stores it, allowing it to be reused multiple times through charging and discharging. Due to their economic and environmentally friendly characteristics, rechargeable batteries are widely used in various industries. In particular, lithium-ion batteries are widely used in industries requiring high energy density, including portable devices.

[0003] The working principle of a lithium-ion rechargeable battery is an electrochemical redox reaction. That is, a lithium-ion rechargeable battery generates electricity through the movement of lithium ions, and is charged through the reverse process. In the case of a lithium-ion rechargeable battery, the phenomenon of lithium ions escaping from the anode and moving to the cathode through the electrolyte and separator is called discharging. The reverse process is called charging.

[0004] Secondary batteries can be manufactured by placing them within a housing to protect the electrode assembly from external impacts and heat. However, the housing or the electrode assembly itself may be damaged when inserted into the housing. Therefore, research is actively underway on methods for safely inserting the electrode assembly into the housing. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] According to one aspect of this disclosure, the problem to be solved by this disclosure is to maximize the performance of the battery cell by preventing damage to the housing or electrode assembly.

[0007] According to another aspect of this disclosure, the problem to be solved by this disclosure is to facilitate and quickly insert the electrode assembly into the receiving housing.

[0008] On the other hand, this disclosure can be widely applied to the fields of electric vehicles, battery charging stations, energy storage systems (ESS), and other green technologies that utilize batteries, such as solar power (photovoltaics) and wind power. Furthermore, this disclosure can also be used for eco-friendly mobility, including electric vehicles and hybrid vehicles, which help prevent climate change by reducing air pollution and greenhouse gas emissions.

[0009] (II) Technical Solution

[0010] The electrode assembly insertion guide according to this disclosure is used to guide the insertion of an electrode assembly into the interior of a receiving housing. The electrode assembly insertion guide includes: a main body portion detachably coupled to the edge of an opening formed by opening through one side of the receiving housing; and a connecting portion formed by the side of the main body portion facing the opening in a direction from the interior of the receiving housing toward the opening.

[0011] The main body may include: a first support portion extending in a direction opposite to the direction of the recess in the joint portion and contacting the inner surface of the housing; and a second support portion extending in a direction opposite to the direction of the recess in the joint portion and contacting the outer surface of the housing.

[0012] The first support portion and the second support portion can be formed side by side.

[0013] The length from the mating surface where the joint contacts one end of the edge to one end of the first support portion can be greater than or equal to the length from the mating surface to one end of the second support portion.

[0014] Along the direction from the inside of the housing towards the outside of the housing, the thickness of the first support portion may be less than or equal to the thickness of the housing.

[0015] Multiple main body portions can be provided, and multiple main body portions can be attached to different positions on the edge of the opening.

[0016] The main body may have a frame shape.

[0017] It may include: an inclined surface, which is formed at an angle at the end opposite to the end that forms the joint.

[0018] The inclined surface can be configured to face the interior of the housing.

[0019] The inclined surface can be formed in a direction away from the interior of the housing, from the interior of the housing toward the opening.

[0020] It may include: a groove, which is formed by recessing one side of the main body toward the interior of the housing in a direction toward the exterior of the housing.

[0021] The groove may extend in a direction from the interior of the housing toward the opening.

[0022] Multiple slots can be provided.

[0023] The plurality of said grooves may be arranged spaced apart from each other in a direction perpendicular to the direction from the interior of the housing toward the opening.

[0024] The electrode assembly insertion method disclosed herein utilizes an electrode assembly insertion guide for guiding the electrode assembly into the interior of a receiving housing. The electrode assembly insertion method includes the steps of: engaging a main body portion to the edge of an opening formed through one side of the receiving housing; and inserting the electrode assembly into the interior of the receiving housing through the opening.

[0025] It may further include the step of separating the main body portion attached to the edge of the opening from the receiving housing.

[0026] (III) Beneficial Effects

[0027] According to one embodiment of this disclosure, the performance of the battery cell can be maximized by preventing damage to the housing or electrode assembly.

[0028] According to another embodiment of this disclosure, the electrode assembly can be conveniently and quickly inserted into the receiving housing. Attached Figure Description

[0029] Figure 1 This is a diagram illustrating the insertion of an electrode assembly into the interior of a housing according to an embodiment of the present disclosure.

[0030] Figure 2 This is a diagram illustrating the insertion guide being attached to a receiving housing according to an embodiment of the present disclosure.

[0031] Figure 3 This is a diagram illustrating the insertion guide being attached to the receiving housing according to another embodiment of the present disclosure.

[0032] Figure 4 and Figure 5 It shows along Figure 2The diagram shows the insertion guide cut from the AA' line and its integration into the housing.

[0033] Figure 6 This is a diagram showing one end face of the housing and insertion guide combined according to an embodiment of the present disclosure.

[0034] Figure 7 This is a diagram showing one end face of the housing and insertion guide combined according to another embodiment of the present disclosure.

[0035] Figure 8 A flowchart illustrating an electrode assembly insertion method according to an embodiment of the present disclosure is shown.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100: Insert Guide

[0038] 110: Main body

[0039] 111: First Support Section

[0040] 112: Second Support Section

[0041] 120: Joint Detailed Implementation

[0042] The present disclosure will now be described in detail with reference to the accompanying drawings. However, these are merely examples, and the present disclosure is not limited to the specific embodiments illustrated.

[0043] Figure 1 This is a diagram illustrating the insertion of an electrode assembly 10 into the interior of a receiving housing 30 according to an embodiment of the present disclosure.

[0044] Reference Figure 1 The electrode assembly insertion guide 100 of this disclosure can guide the electrode assembly 10 into the interior of the receiving housing 30.

[0045] The insertion of the guide electrode assembly 10 can refer to guiding the path of the guide electrode assembly 10 so as to facilitate the insertion of the electrode assembly 10 into the receiving housing 30. Alternatively, it can refer to the electrode assembly 10 moving in a predetermined direction via the insertion guide 100 after a portion of the electrode assembly 10 is inserted into the insertion guide 100, provided that pressure is applied to the electrode assembly 10.

[0046] The electrode assembly 10 of this disclosure can be inserted into a receiving housing 30 and supply electrical energy to the outside through charging and discharging. For this purpose, the electrode assembly 10 may include a positive electrode and a negative electrode. Lithium ions can be oxidized or reduced in the positive and negative electrodes to perform charging or discharging.

[0047] The positive and negative electrodes may include current collectors. The positive electrode may include a positive current collector, and the negative electrode may include a negative current collector. The current collector may be a known conductive material that does not cause a chemical reaction within the lithium secondary battery.

[0048] For example, the current collector can be made of any of stainless steel, nickel, aluminum, titanium, copper, and their alloys, and can be provided in various forms such as film, sheet, and foil.

[0049] The positive and negative electrodes may further contain active materials. The positive electrode may contain positive active materials, and the negative electrode may contain negative active materials. The positive and negative active materials can be substances that lithium ions can intercalate and deintercalate, respectively.

[0050] For example, the positive electrode active material can be lithium metal oxide, and the negative electrode active material can be any of the following: crystalline carbon, amorphous carbon, carbon composite materials, carbon-based materials such as carbon fibers, lithium alloys, silicon (Si), and tin (Sn).

[0051] The positive and negative electrodes may further contain binders and conductive materials to improve mechanical stability and conductivity.

[0052] The electrode assembly 10 may further include a separator. The separator may be configured to prevent electrical short circuits between the positive and negative electrodes and to allow ion flow. There are no particular limitations on the type of separator, and it may include a porous polymer film. For example, the separator may include a porous polymer film or a porous nonwoven fabric.

[0053] Depending on the stacking method of the positive electrode, negative electrode, and separator, the electrode assembly 10 can be classified as stacking, winding, stack-folding, or Z-stacking. The stacking method of the electrode assembly 10 disclosed herein is not limited to any one of these stacking methods.

[0054] On the other hand, the electrode assembly 10 may further include a tab 11. The tab 11 may include a positive tab 11a electrically connected to the positive electrode. The tab 11 may include a negative tab 11b electrically connected to the negative electrode. The positive tab 11a may be formed of the same material as the positive current collector, and the negative tab 11b may be formed of the same material as the negative current collector.

[0055] The tab 11 can be electrically connected to a terminal (not shown), which is electrically connected to an external device. Therefore, the electrode assembly 10 of this disclosure can be connected to an external device via the tab 11 and the terminal to supply power.

[0056] like Figure 1 As shown, the tabs 11 can be formed side by side on one side of the electrode assembly 10, but are not limited thereto.

[0057] On the other hand, the electrode assembly 10 can be covered by the cover 20. The cover 20 can cover the outer surface of the electrode assembly 10. The cover 20 can be formed of a highly insulating material to improve the insulation of the electrode assembly 10.

[0058] In an embodiment, the cover 20 may be formed corresponding to the shape of the electrode assembly 10. (See reference...) Figure 1 The cover 20 may be hexahedral in shape to correspond to the electrode assembly 10. The cover 20 may further include a cover insulation portion 21, which is disposed on the inner lower surface of the cover 20 to insulate the electrode assembly 10.

[0059] The electrode assembly 10 covered by the cover 20 can be housed in the housing 30. The interior of the housing 30 can house the electrode assembly 10 and the electrolyte.

[0060] The housing 30 can protect the electrode assembly 10 from external impacts, pressure, or heat, and can maintain the insulation of the electrode assembly 10. For this purpose, the housing 30 can be formed in a multi-layered structure.

[0061] The housing 30 may include a frame portion 32 and an insulating portion 31. The frame portion 32 may include a metal layer. The metal layer may be made of a material with high mechanical rigidity to withstand external impacts.

[0062] The insulating portion 31 can be formed by coating one side of the frame portion 32. (See reference) Figure 1 An insulating portion 31 can be coated on one side of the frame portion 32 to insulate the interior and exterior of the housing 30.

[0063] The housing 30 may include an opening 33. The opening 33 may be formed by opening one side of the housing 30. The electrode assembly 10 may be inserted into the interior of the housing 30 through the opening 33.

[0064] In one embodiment, the opening 33 may be formed on the upper part of the housing 30. Of course, the opening 33 may also be formed on the side of the housing 30.

[0065] In this specification, the direction from the interior of the housing 30 toward the opening 33 can refer to a direction parallel to the Z-axis. (See reference...) Figure 1 The opening 33 can be formed by opening along the Z-axis toward the upper part of the housing 30.

[0066] Figure 2 This is a diagram illustrating the insertion guide 100 coupled to the receiving housing 30 according to an embodiment of the present disclosure. Figure 3 This is a diagram showing the insertion guide 100 coupled to the receiving housing 30 according to another embodiment of the present disclosure.

[0067] The electrode assembly 10 can be inserted into the housing 30 through the opening 33. However, when the electrode assembly 10 is inserted, the edge of the opening 33 and the electrode assembly 10 may come into accidental contact.

[0068] The electrode assembly 10 is preferably configured to include as many positive and negative electrodes as possible to improve energy density. Therefore, the size of the electrode assembly 10 can be set to fill most of the interior of the housing 30.

[0069] When the bulky electrode assembly 10 is placed inside the housing 30, the edge of the opening 33 may be pressurized by the electrode assembly 10. The edge of the opening 33 is the end portion of one side of the housing 30, see reference. Figure 1 The insulating part 31 can be coated on the frame part 32.

[0070] In this situation, the coating of the insulating portion 31 may be damaged by the electrode assembly 10, and the insulating portion 31 may be peeled off. In addition, a region of the electrode assembly 10 may be pressurized, resulting in damage to the electrode assembly 10.

[0071] The insertion guide 100 disclosed herein includes: a main body 110, which is detachably coupled to the edge of an opening 33 formed by opening through one side of a receiving housing 30; and a coupling portion 120, which is formed by the side of the main body 110 facing the opening 33 being recessed in a direction from the interior of the receiving housing 30 toward the opening 33.

[0072] The main body 110 can be detachably attached to the edge of the opening 33. The insertion guide 100 is used to protect the receiving housing and guide the insertion of the electrode assembly 10, and can be attached to the receiving housing 30 when the electrode assembly 10 is inserted. After the electrode assembly 10 is partially or fully inserted, the insertion guide 100 can be separated from the receiving housing 30.

[0073] Thus, the insertion guide 100 can quickly and safely insert the electrode assembly 10 into the receiving housing 30 without reducing the energy density of the battery cell.

[0074] The insertion guide 100 can engage with the receiving housing 30 along the edge of the opening 33. (See reference...) Figure 2 The insertion guide 100 can be integrally formed. In other words, the main body 110 can have a frame shape corresponding to the edge of the opening 33.

[0075] For example, the main body 110 can be formed in the shape of a rectangular frame. If the opening 33 is elliptical or polygonal, the main body 110 can also be elliptical or polygonal.

[0076] In the embodiments, reference is made to Figure 3 The main body 110 may include multiple main body parts 110a, 110b, 110c, and 110d. The multiple main body parts 110a, 110b, 110c, and 110d may be coupled to different positions of the housing 30.

[0077] To assemble the frame-shaped main body 110 with the opening 33, the opening 33 and the main body 110 need to be placed correspondingly and then pressurized. However, it may be difficult to place the opening 33 and the main body 110 correspondingly, and even if they are placed correspondingly, they may be misaligned during pressurization. Alternatively, if a part is damaged, assembly may be difficult.

[0078] When the main body 110 includes multiple main bodies, the multiple main bodies 110a, 110b, 110c, and 110d can be respectively attached to the edge of the opening 33. After attaching one main body 110a to the housing 30, another main body 110b can be attached to the housing 30.

[0079] For example, the main body 110 may be formed extending in one direction. The main body 110 may extend in a direction perpendicular to the direction from the interior of the housing 30 toward the opening 33.

[0080] Multiple main body portions 110 can be individually attached to the area of ​​the edge of the opening 33, excluding the vertex. Even if the main body portions 110 are only attached to the area excluding the vertex, the electrode assembly 10 can be easily inserted into the interior of the housing 30.

[0081] In another embodiment, a plurality of main body portions 110 may be connected to each other to form a frame-shaped main body portion 110. The frame-shaped main body portion 110 may then be attached to the edge of the opening 33.

[0082] The joint 120 can be formed by recessing one side of the main body 110 so that the edge of the opening 33 can be inserted therein. A portion of the edge can be located between the joints 120, so that the main body 110 can be stably fixed to the housing 30. The joint 120 can be formed in a shape corresponding to the edge of the opening 33.

[0083] The joint 120 can be located at the lower part of the main body 110 along the Z-axis direction. In addition, since the outer surface of the edge of the opening 33 is formed by three perpendicular surfaces, the joint 120 can also be formed by three perpendicularly connected surfaces.

[0084] Figure 4 and Figure 5 It shows along Figure 2 The diagram shows the insertion guide 100, cut from line AA', being attached to the receiving housing 30. Figure 6 This is a diagram showing one end face of the housing 30 and the insertion guide 100 combined according to an embodiment of the present disclosure. Figure 7 This is a diagram showing one end face of the housing 30 and the insertion guide 100 combined according to another embodiment of the present disclosure.

[0085] Reference Figure 4 After placing the main body 110 on the edge of the opening 33, the main body 110 can be moved toward the edge to engage with the edge. For this purpose, the size of the engaging portion 120 can be set to the extent that the edge of the opening 33 can be inserted.

[0086] The edge of the opening 33 can be inserted into the joint 120. The edge can be inserted into the joint 120 and fill the space of the joint 120. (See reference) Figure 5 The edge and the main body 110 can be joined by the joint 120.

[0087] The main body 110 may include a first support portion 111 and a second support portion 112. The first support portion 111 may extend in a direction opposite to the direction of the recess in the joint portion 120 and may contact the inner surface of the housing 30. The second support portion 112 may extend in a direction opposite to the direction of the recess in the joint portion 120 and may contact the outer surface of the housing 30.

[0088] The inner surface of the housing 30 refers to the side of the housing 30 facing the electrode assembly 10. The outer surface of the housing 30 refers to the side of the housing 30 exposed to the outside. That is, the first support portion 111 and the second support portion 112 can contact the inner and outer surfaces of the housing 30, respectively. Thus, even if the main body portion 110 is pressurized, the main body portion 110 will not separate from the housing 30.

[0089] Reference Figure 4 and Figure 5 The first support portion 111 and the second support portion 112 can extend downward from the main body portion 110 along the Z-axis direction. The first support portion 111 and the second support portion 112 can be located in opposite positions with the joint portion 120 as a reference.

[0090] That is, when the housing 30 is inserted into the connecting portion 120, the first support portion 111 can be located in the direction from the connecting portion 120 toward the interior of the housing 30. Conversely, the second support portion 112 can be located in the direction from the connecting portion 120 toward the exterior of the housing 30.

[0091] The first support portion 111 and the second support portion 112 can be formed side by side. The first support portion 111 and the second support portion 112 can extend side by side from the main body portion 110. As a result, the fixing force of the main body portion 110 can be improved.

[0092] Specifically, even if the main body 110 is pressurized in the direction from the inside of the electrode assembly 10 to the outside or in the opposite direction, the main body 110 will not easily separate due to the first support 111 and the second support 112.

[0093] The length from the mating surface where the joint 120 contacts one end of the edge to one end of the first support 111 can be greater than or equal to the length from the mating surface to one end of the second support 112. When the edge is inserted into the joint 120, one end of the edge can contact the surface forming the joint 120.

[0094] In this case, one end of the edge can refer to the surface of the edge facing the joint 120. That is, the surface facing upwards along the Z-axis from the edge. The joint surface can refer to the surface of the joint 120 facing the edge. For example, refer to... Figure 5 The mating surface can refer to the upper surface of mating surface 120.

[0095] The lengths from the mating surface to one end of the first support 111 and from the mating surface to one end of the second support 112 can be measured in a direction parallel to the direction from the interior of the housing 30 toward the opening 33. (Refer to...) Figure 6 The length L1 from the mating surface to one end of the first support 111 can be longer than the length L2 from the mating surface to one end of the second support 112.

[0096] The first support portion 111 extends relatively long to guide the insertion of the electrode assembly 10. When a portion of the electrode assembly 10 is inserted into the body portion 110 and pressure is applied to the electrode assembly 10, the electrode assembly 10 can be inserted smoothly. However, if the first support portion 111 is formed to be shorter, the electrode assembly 10 may not be able to move along the predetermined path.

[0097] In other words, if the electrode assembly 10 is not inserted into the main body 110 by a predetermined length, the electrode assembly 10 may be bent or broken by the main body 110 when pressure is applied to the electrode assembly 10. Therefore, the main body 110 preferably extends a predetermined length from the inside of the electrode assembly 10.

[0098] Along the direction from the inside of the housing 30 toward the outside of the housing 30, the thickness of the first support portion 111 can be less than or equal to the thickness of the housing 30. This is to reduce the space occupied by the main body portion 110.

[0099] When the main body 110 is attached to the edge of the opening 33, a portion of the main body 110 and the opening 33 may overlap along the Z-axis. The reduction in the entrance of the opening 33 corresponds to the area occupied by the main body 110, thereby reducing the space for inserting the electrode assembly 10. Therefore, it is necessary to minimize the area reduction of the opening 33 due to the main body 110.

[0100] Therefore, the thickness of the first support portion 111 is preferably set to be thin. (Refer to...) Figure 6 The thickness L4 of the first support 111 can be less than or equal to the thickness L3 of the housing 30.

[0101] After the main body 110 is attached to the edge of the opening 33, the electrode assembly 10 can contact the main body 110 and be inserted into the interior of the receiving housing 30. To guide the insertion of the electrode assembly 10, one side of the main body 110 can be inclined. The inclined surface 132 can be formed at the end opposite to the end forming the joint 120.

[0102] The insertion guide 100 of this disclosure can be fixed to the receiving housing 30 by edge insertion into a coupling portion 120 formed on one side of the main body portion 110. After fixing, the other end opposite to the end formed in the coupling portion 120 can contact the electrode assembly 10 to guide the insertion of the electrode assembly 10. Therefore, an inclined surface 132 can be formed on the other end.

[0103] Additionally, the inclined surface 132 can be configured to face the interior of the receiving housing 30. Since the electrode assembly 10 is inserted into the interior of the receiving housing 30, the inclined surface 132 needs to be configured to face the interior of the receiving housing 30. (See reference...) Figure 6 Along the Y-axis, the right side of the housing 30 can refer to the interior of the housing 30, and the left side of the housing 30 can refer to the exterior of the housing 30. The inclined surface 132 can be formed along the Y-axis on the right side of the main body 110, facing the interior of the housing 30.

[0104] The inclined surface 132 can be formed in a direction away from the interior of the housing 30, from the interior of the housing 30 toward the opening 33. That is, the inclined surface 132 can be formed such that the area through which the electrode assembly 10 passes from the exterior to the interior of the housing 30 narrows. Thus, after one end of the electrode assembly 10 is stably located in the main body 110, it can be pressurized and inserted into the interior of the housing 30.

[0105] Reference Figures 4 to 6 The further the inclined surface 132 is from the interior of the housing 30 along the Z-axis, the further it can move to the left along the Y-axis.

[0106] In another embodiment, reference is made to Figure 7The inclined surface 132a can be formed as a curved surface. That is, the slope of the inclined surface 132a can gradually change. Similarly, the farther the inclined surface 132a, which is formed as a curved surface, is from the interior of the housing 30, the further it can move to the left along the y-axis.

[0107] On the other hand, the inclined surface 133 of the main body 110 may also be formed at the end where the joint 120 is formed. (See reference...) Figures 5 to 7 An inclined surface 133 may be formed at one end of the first support portion 111. The inclined surface 133 may be formed in the first support portion 111 facing the interior of the receiving housing 30.

[0108] The inclined surface 133 of the first support portion 111 can be formed into a slope, which gets closer to the inner surface of the housing 30 as it moves from the opening 33 toward the interior of the housing 30. As a result, the area through which the electrode assembly 10 passes gradually increases, thereby minimizing damage to the electrode assembly 10.

[0109] The insertion guide 100 of this disclosure may include a groove 131. The groove 131 may be formed by recessing one side of the main body 110 in a direction toward the outside of the receiving housing 30, facing the interior of the receiving housing 30.

[0110] When the electrode assembly 10 is inserted, the fluid inside the housing 30 can be discharged to the outside through the opening 33. For example, the fluid can be air. However, since the electrode assembly 10 is inserted through the opening 33, air may not be able to be discharged smoothly, which may cause damage to the electrode assembly 10.

[0111] A groove 131 may be formed on the surface where the insertion guide 100 and the electrode assembly 10 meet, to allow air to escape to the outside of the housing 30. (See reference...) Figure 4 and Figure 5 The groove 131 can be formed on the surface of the first support 111 facing the interior of the housing 30.

[0112] The groove 131 can extend in a direction from the interior of the housing 30 toward the opening 33. For example, the groove 131 can extend in the Z-axis direction. Thus, the groove 131 can exhaust air to the outside of the housing 30. Even when the first support 111 is in contact with the electrode assembly 10, air can still be exhausted to the outside through the groove 131.

[0113] Multiple slots 131 can be provided. Air can be effectively discharged through multiple slots 131. Multiple slots 131 can be spaced apart from each other in a direction perpendicular to the direction from the interior of the housing 30 toward the opening 33.

[0114] Reference Figure 4 and Figure 5Multiple slots 131 can be spaced apart from each other along the X-axis. Any one slot 131 can extend along the Z-axis on the first main body 110, and another slot 131 can be spaced apart from the first slot 131 along the X-axis.

[0115] Figure 8 A flowchart illustrating an electrode assembly insertion method according to an embodiment of the present disclosure is provided. Hereinafter, reference will be made to... Figure 8 The method of inserting electrode assembly 10 using the insertion guide 100 of this disclosure is described.

[0116] The electrode assembly insertion method disclosed herein includes: a step of attaching the main body 110 to the edge of an opening 330 formed by opening one side of the receiving housing 30 (S10); and a step of inserting the electrode assembly 10 into the interior of the receiving housing 30 through the opening 33 (S30).

[0117] In this disclosure, after the step of attaching the main body 110 to the edge of the opening 33 (S10), the step of inserting the electrode assembly 10 through the opening 33 into the interior of the receiving housing 30 can be performed (S30).

[0118] In step (S30) of inserting the electrode assembly 10 into the receiving housing 30, the electrode assembly 10 may come into contact with the insertion guide 100. After a portion of the electrode assembly 10 is inserted into the inlet formed by the insertion guide 100, the electrode assembly 10 may be pressurized.

[0119] After one end of the electrode assembly 10 is inserted to a predetermined length, the present disclosure allows for the step of separating the main body 110 from the receiving housing 30 (S50). In another embodiment, after the electrode assembly 10 is inserted into the receiving housing 30, the step of separating the main body 110 from the receiving housing 30 (S50) can be performed.

[0120] On the other hand, in this disclosure, when multiple main body portions 110 are provided, the multiple main body portions 110 can be respectively attached to the edge of the opening 33. After attaching the multiple main body portions 110, the step of inserting the electrode assembly 10 into the interior of the receiving housing 30 through the opening 33 can be performed (S30).

[0121] This disclosure can be implemented in various forms and variations, and its scope is not limited to the embodiments described above. The above content is merely an example of applying the principles of this disclosure, and other configurations may be included without departing from the scope of this utility model.

Claims

1. An electrode assembly insertion guide for guiding insertion of an electrode assembly into an interior of a housing, characterized by, The electrode assembly insertion guide includes: The main body is detachably attached to the edge of an opening formed by opening through one side of the receiving housing; and The joint is formed by the side of the main body facing the opening being recessed in a direction from the interior of the housing toward the opening.

2. The electrode assembly insertion guide according to claim 1, characterized in that, The main body includes: A first support portion extends in a direction opposite to the direction of the recess in the joint portion and contacts the inner surface of the receiving housing; and The second support extends in the opposite direction to the recess of the joint and contacts the outer surface of the housing.

3. The electrode assembly insertion guide according to claim 2, characterized in that, The first support portion and the second support portion are formed side by side.

4. The electrode assembly insertion guide according to claim 2 or 3, characterized in that, The length from the mating surface where the joint contacts one end of the edge to one end of the first support is greater than or equal to the length from the mating surface to one end of the second support.

5. The electrode assembly insertion guide according to claim 2 or 3, characterized in that, Along the direction from the inside of the housing towards the outside of the housing, the thickness of the first support is less than or equal to the thickness of the housing.

6. The electrode assembly insertion guide according to claim 1, characterized in that, The main body is provided in multiple parts, and the multiple main body parts are attached to different positions on the edge of the opening.

7. The electrode assembly insertion guide according to claim 1, characterized in that, The main body has a frame shape.

8. The electrode assembly insertion guide according to any one of claims 1 to 3, 6 and 7, characterized by, include: An inclined surface is formed at an angle at the end opposite to the end that forms the joint.

9. The electrode assembly insertion guide according to claim 8, characterized in that, The inclined surface is configured to face the interior of the housing.

10. The electrode assembly insertion guide according to claim 8, characterized in that, The inclined surface is formed along a direction away from the interior of the housing, from the interior of the housing toward the opening.

11. The electrode assembly insertion guide according to any one of claims 1 to 3, 6 and 7, characterized by, Further includes: The groove is formed by recessing one side of the main body toward the interior of the housing in a direction toward the exterior of the housing.

12. The electrode assembly insertion guide according to claim 11, characterized in that, The groove extends from the interior of the housing toward the opening.

13. The electrode assembly insertion guide according to claim 11, characterized in that, The groove is provided in multiple ways.

14. The electrode assembly insertion guide according to claim 13, characterized in that, The plurality of said grooves are spaced apart from each other in a direction perpendicular to the direction from the interior of the housing toward the opening.

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