Inter-bus bar, pack housing comprising same, battery pack comprising same, and manufacturing method therefor

Abstract

The present invention relates to an inter-bus bar, a pack housing comprising same, a battery pack comprising same, and a manufacturing method therefor, the inter-bus bar comprising: a conductive member electrically connected to a module terminal provided at a battery module; an insulating unit encompassing the area leftover after excluding an area in which the conductive member comes into contact with the module terminal; and a case into which the insulation unit is inserted.

Description

Interbus bar, pack housing including same, battery pack including same, and manufacturing method thereof

[0001] This application claims the benefit of priority to Korean Patent Application No. 10-2024-0033066, filed March 8, 2024, the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to an interbus bar, a pack housing including the same, a battery pack including the same, and a method for manufacturing the same, and more particularly, to an interbus bar that can be coupled to a pack housing, a pack housing including the same, a battery pack including the same, and a method for manufacturing the same.

[0003]

[0004] As technological development and demand for mobile devices increase, rechargeable secondary batteries are increasingly being used as energy sources for a variety of mobile devices. Secondary batteries are also attracting attention as an energy source for electric and hybrid electric vehicles, offering an alternative to conventional gasoline and diesel vehicles that rely on fossil fuels.

[0005] Secondary batteries are classified into cylindrical and prismatic batteries, in which the electrode assembly is built into a cylindrical or prismatic metal can, and pouch-type batteries, in which the electrode assembly is built into a pouch-type case made of aluminum laminate sheet, depending on the shape of the battery case.

[0006] The types of secondary batteries widely used today include lithium-ion batteries, lithium polymer batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and nickel-zinc batteries. The operating voltage of these unit secondary battery cells, i.e., unit battery cells, is approximately 2.0 V to 5.0 V. Therefore, when a higher output voltage is required, a cell module assembly may be configured by connecting multiple battery cells in series, and a battery module may be configured by connecting cell module assemblies in series or parallel depending on the required output voltage or charge / discharge capacity. It is common to manufacture a battery pack by adding additional components using at least one of these battery modules.

[0007] However, lithium secondary batteries pose a risk of explosion due to overheating, making safety a critical issue. Overheating can occur for a variety of reasons, one of which is overcurrent flowing through a lithium secondary battery. This overcurrent causes heat generation, rapidly increasing the battery's internal temperature. This rapid rise in temperature can trigger thermal runaway, potentially leading to battery explosion.

[0008] Fig. 1 is a schematic diagram of a battery pack to which a bus bar according to the prior art is applied. As illustrated in Fig. 1, the battery pack may be provided in which a battery module (M) including a plurality of battery cells (1) is connected to an external terminal (3) of another adjacent battery module (M) via an inter-bus bar (4).

[0009] In this case, there is a problem that the remaining part, except for the area where the interbus bar (4) comes into contact with the external terminal (3), is exposed to the discharged matter during thermal runaway, which increases the probability of an internal short circuit occurring.

[0010]

[0011] (Prior art literature)

[0012] (Patent Document 1) Korean Patent Publication No. 10-2015-0028073

[0013]

[0014] In order to solve the above problems, the present invention provides an interbus bar, which is provided so that the remaining area except the area in contact with the external terminal of the battery module is not exposed to discharge, thereby reducing the probability of an internal short circuit, a pack housing including the same, a battery pack including the same, and a manufacturing method thereof.

[0015]

[0016] As a technical means for achieving the above purpose, an interbus bar according to one embodiment of the present invention is characterized by including a conductive member (110) electrically connected to a module terminal (310) provided in a battery module (300); an insulating member (120) provided to surround an area remaining except for an area where the conductive member (110) is in contact with the module terminal (310); and a case (130) into which the insulating member (120) is inserted.

[0017] In addition, in the interbus bar according to one embodiment of the present invention, the conductive member (110) is characterized by having a one-piece bar shape.

[0018] In addition, in the interbus bar according to one embodiment of the present invention, the case (130) is characterized in that a through hole (131) is formed so that the conductive member (110) and the insulating member (120) pass through it.

[0019] In addition, in the interbus bar according to one embodiment of the present invention, the conductive member (110) is characterized in that it is provided with an electrically conductive material including a metal material.

[0020] In addition, in the interbus bar according to one embodiment of the present invention, an insulating material (111) is applied to the remaining area of ​​the outer surface of the conductive member (110).

[0021] In addition, in the interbus bar according to one embodiment of the present invention, the insulating part (120) is characterized in that it is provided with an electrically insulating material.

[0022] In addition, a pack housing including an interbus bar according to one embodiment of the present invention is characterized by including an outer frame (210); a lattice-shaped bulkhead (220) provided on the inside of the outer frame (210) and arranged to form a plurality of receiving grooves (230) for receiving the battery module (300); and an interbus bar (100) mounted on the bulkhead (220).

[0023] In addition, in the pack housing according to one embodiment of the present invention, the partition wall (220) is characterized by including a first partition wall (221) arranged along a first direction parallel to the axial direction in which the module terminal (310) of the battery module (300) is arranged; and a second partition wall (222) arranged along a second direction orthogonal to the first direction.

[0024] In addition, in the pack housing according to one embodiment of the present invention, the first bulkhead (221) is provided with a first mounting groove (221a) formed to allow the inter-bus bar (100) to be mounted, and the first mounting groove (221a) is characterized in that it is formed along the second direction with respect to the first bulkhead (221).

[0025] In addition, in the pack housing according to one embodiment of the present invention, the second bulkhead (222) is provided with a second mounting groove (222a) formed to allow the inter-bus bar (100) to be mounted, and the second mounting groove (222a) is characterized in that it is formed along a first direction with respect to the second bulkhead (222).

[0026] In addition, a battery pack including a pack housing according to one embodiment of the present invention is characterized by including: the pack housing (200) including the interbus bar (100), the outer frame (210) and the bulkhead (220); and a plurality of battery modules (300) having the module terminals (310).

[0027] In addition, in a battery pack according to one embodiment of the present invention, the interbus bar (100) is characterized in that it is seated in the first seating groove (221a) so as to electrically connect the module terminal (310) of the adjacent battery module (300) along the second direction.

[0028] In addition, in a battery pack according to one embodiment of the present invention, the interbus bar (100) is characterized in that it is seated in a second seating groove (222a) so as to electrically connect the module terminal (310) of the adjacent battery module (300) along the first direction.

[0029] In addition, a method for manufacturing a battery pack according to one embodiment of the present invention is characterized by including: (S1) a step of accommodating a plurality of battery modules (300) in the plurality of receiving grooves (230); (S2) a step of accommodating a plurality of inter-bus bars (100) in the first receiving grooves (221a) and / or the second receiving grooves (222a) so as to connect the module terminals (310) provided in each of the adjacent battery modules (300); and (S3) a step of electrically contacting the conductive member (110) and the module terminals (310).

[0030] In addition, the battery pack manufacturing method according to one embodiment of the present invention is characterized by further including a step of adding an insulating material to the upper surface of the conductive member (110) after the step (S3).

[0031]

[0032] As described above, according to the present invention, the interbus bar, the pack housing including the same, the battery pack including the same, and the manufacturing method thereof, the battery module is provided with an insulating material to be wrapped except for a portion electrically connected to a module terminal provided in the battery module, so that even if discharged matter from a cell thermal runaway flies and settles, an internal short circuit can be prevented from occurring.

[0033] In addition, according to the interbus bar according to the present invention, the pack housing including the same, the battery pack including the same, and the manufacturing method thereof, a groove is formed in the bulkhead of the pack housing so that the interbus bar is secured, thereby simplifying the manufacturing method of the battery pack.

[0034]

[0035] Figure 1 is a schematic diagram of a battery pack to which a bus bar according to the prior art is applied.

[0036] Figure 2 is a perspective view of an interbus bar according to one embodiment of the present invention.

[0037] Figure 3 is an exploded perspective view of an interbus bar according to one embodiment of the present invention.

[0038] FIG. 4 is a conceptual diagram of a battery pack including a pack housing according to one embodiment of the present invention.

[0039] FIG. 5 is a drawing for explaining how an inter-bus bar is installed on a first bulkhead of a battery pack according to one embodiment of the present invention.

[0040] FIG. 6 is a drawing for explaining an inter-bus bar mounted on a first bulkhead of a battery pack according to one embodiment of the present invention.

[0041] FIG. 7 is a drawing for explaining how an inter-bus bar is installed in a second bulkhead of a battery pack according to one embodiment of the present invention.

[0042] FIG. 8 is a drawing for explaining an inter-bus bar mounted on a second bulkhead of a battery pack according to one embodiment of the present invention.

[0043]

[0044] Hereinafter, with reference to the attached drawings, embodiments of the present invention will be described in detail, so that those skilled in the art can easily implement the present invention. However, when describing the operating principles of preferred embodiments of the present invention in detail, if a detailed description of a related known function or configuration is judged to unnecessarily obscure the gist of the present invention, such detailed description will be omitted.

[0045] Additionally, the same drawing reference numerals are used for parts with similar functions and actions throughout the drawings. Throughout the specification, when a part is said to be connected to another part, this includes not only direct connections but also indirect connections with other elements intervening. Furthermore, inclusion of a component does not exclude other components unless specifically stated otherwise, but rather implies the inclusion of additional components.

[0046]

[0047] Below, an interbus bar according to the present invention is described.

[0048] FIG. 2 is a perspective view of an interbus bar according to one embodiment of the present invention, FIG. 3 is an exploded perspective view of an interbus bar according to one embodiment of the present invention, and FIG. 4 is a conceptual diagram of a battery pack including a pack housing according to one embodiment of the present invention.

[0049] Referring to FIGS. 2 to 4, the interbus bar (100) includes a conductive member (110), an insulating member (120), and a case (130).

[0050] First, the conductive member (110) may be provided to be electrically connected to a module terminal (310) provided in the battery module (300). For example, the conductive member (110) may be electrically connected to the module terminal (310) by having both ends in contact with the module terminal (310).

[0051] The conductive member (110) may be formed of an electrically conductive material including a metal material. For example, the conductive member (110) may be formed of a metal plate. More specifically, the conductive member (110) may be formed of copper, aluminum, nickel, gold, silver, or a combination thereof.

[0052] Additionally, an insulating material (111) may be applied to the remaining area of ​​the outer surface of the conductive member (110) except for both ends that are in contact with the module terminal (310).

[0053] This insulating material (111) is an external insulating material among the inter-busbar components, and can prevent current flow during the subsequent manufacture of the battery pack. For example, the insulating material (111) may be one or more of polybutylene terephthalate (PBT), plastic, inorganic oxide, and non-conductive metal.

[0054] The conductive member (110) may be provided in the form of a bar. Accordingly, the inter-bus bar (100) can electrically connect the module terminals (310) of adjacent battery modules (300).

[0055] The insulating portion (120) may be provided to surround the remaining area except for the area where the conductive member (110) comes into contact with the module terminal (310). That is, the insulating portion (120) may be provided to surround the area where the insulating material (111) is applied to the conductive member (110).

[0056] The insulating portion (120) may be formed of an electrically insulating material. For example, it may be formed of one or more of plastic, inorganic oxide, and non-conductive metal.

[0057] In addition, the insulating part (120) may have an insertion hole (121) formed therein so that a conductive member (110) may be inserted therein, and the conductive member (110) may be inserted into the insertion hole (121) to minimize the exposure area from the discharged material.

[0058] The insulating member (120) is provided to surround the outer surface of the conductive member (110) except for both ends of the conductive member (110), thereby reducing the probability of the conductive member (110) being touched by spark particles compared to the prior art.

[0059] The case (130) may be provided so that an insulating member (120) is inserted. The case (130) is provided with a through hole (131) formed so that the conductive member (110) and the insulating member (120) pass through, so that the conductive member (110) inserted into the insertion hole (121) of the insulating member (120) can pass through the through hole (131) and be coupled to the case (130).

[0060] For example, the through hole (131) may be formed so that the conductive member (110) and the insulating member (120) penetrate the central portion of the side of the case (130).

[0061] In addition, this case (130) can be manufactured from the same material as the bulkhead (220) described below or from an injection molded product represented by heat-resistant plastic.

[0062]

[0063] Below, a pack housing and a battery pack including an interbus bar according to the present invention are described.

[0064] FIG. 5 is a drawing for explaining an inter-bus bar being installed on a first bulkhead of a battery pack according to an embodiment of the present disclosure, and FIG. 6 is a drawing for explaining an inter-bus bar being installed on a first bulkhead of a battery pack according to an embodiment of the present disclosure. In addition, FIG. 7 is a drawing for explaining an inter-bus bar being installed on a second bulkhead of a battery pack according to an embodiment of the present disclosure, and FIG. 8 is a drawing for explaining an inter-bus bar being installed on a second bulkhead of a battery pack according to an embodiment of the present disclosure.

[0065] Referring to FIGS. 2 to 8 together, the pack housing (200) includes an outer frame (210), a bulkhead (220), and an inter-bus bar (100). In addition, the pack housing (200) may include an upper case (not shown) and a lower case (not shown).

[0066] First, the outer frame (210) may be configured to have an empty space formed therein, and to accommodate a plurality of battery modules (300) and a bulkhead (220) in this empty space. For example, the outer frame (210) may be configured in a box shape when combined with an upper case (not shown) and a lower case (not shown).

[0067] The bulkhead (220) may include a first bulkhead (221) and a second bulkhead (222). These bulkheads (220) may be provided on the inside of the outer frame (210) and arranged in a grid shape to form a plurality of receiving grooves (230) for receiving battery modules (300).

[0068] The first bulkhead (221) may be arranged along a first direction parallel to the axial direction (12 o'clock to 6 o'clock direction in FIG. 4) in which the module terminal (310) of the battery module (300) is arranged. In addition, the second bulkhead (222) may be arranged along a second direction orthogonal to the first direction.

[0069] For example, the second bulkhead (222) may be positioned at the center of the first direction reference of the outer frame (210), and the first bulkhead (221) may be positioned spaced apart from the outer frame (210) to correspond to the full width length of the battery module (300).

[0070] The distance between the outer frame (210) and the second bulkhead (222) corresponds to the overall length of the battery module (300), and the distance between the outer frame (210) and the first bulkhead (221) or the first bulkhead (221) and the first bulkhead (221) may correspond to the overall width of the battery module (300).

[0071] By the arrangement of the first bulkhead (221) and the second bulkhead (222), the outer frame (210) and the bulkhead (220) can form a plurality of receiving grooves (230) for receiving the battery module (300). The size of the plurality of receiving grooves (230) can correspond to the size of the battery module (300).

[0072] Meanwhile, the interbus bar (100) can be mounted on the bulkhead (220).

[0073] First, referring to FIGS. 5 and 6, a first mounting groove (221a) is formed in the first bulkhead (221), and an inter-bus bar (100) can be mounted in this first mounting groove (221a).

[0074] To explain in more detail, the first bulkhead (221) may have a first settling groove (221a) formed in a shape in which a portion is cut off in the second direction from the central portion where the second bulkhead (222) crosses. Of course, the first settling groove (221a) may not be formed by actually cutting off a portion of the first bulkhead (221), but may be formed by molding the first settling groove (221a) into a shape formed during the manufacturing of the first bulkhead (221).

[0075] The first settling groove (221a) can be formed at a location corresponding to the position where the module terminal (310) of the battery module (300) accommodated in the plurality of accommodation grooves (230) is arranged.

[0076] The interbus bar (100) may be provided with a shape corresponding to the shape of the first mounting groove (221a), and the first mounting groove (221a) of the first bulkhead (221) and the case (130) of the interbus bar (100) may be in a matching shape.

[0077] In addition, for example, the lower surface of the interbus bar (100) may be provided with a protrusion (not shown) that protrudes downward from the lower surface to be combined with the bulkhead (220), and the first mounting groove (221a) may be provided with a joining groove (not shown) to be combined with the protrusion (not shown).

[0078] In addition, referring to FIGS. 7 and 8, a second mounting groove (222a) is formed in the second bulkhead (222), and an inter-bus bar (100) can be mounted in this second mounting groove (222a).

[0079] To explain in more detail, the second bulkhead (222) may be formed with a second mounting groove (222a) in a shape in which a portion thereof is cut off along the first direction on one or the other side that is in contact with the outer frame (210). Of course, the second mounting groove (222a) may not be formed by actually cutting off a portion of the second bulkhead (222), but may be formed by molding the second mounting groove (222a) into a shape formed during the manufacturing of the second bulkhead (222).

[0080] The second settling groove (222a) can be formed at a location corresponding to the position where the module terminal (310) of the battery module (300) accommodated in the plurality of accommodation grooves (230) is arranged.

[0081] The inter-bus bar (100) may be provided with a shape corresponding to the shape of the second mounting groove (222a), and the second mounting groove (222a) of the second bulkhead (222) and the case (130) of the inter-bus bar (100) may be in a matching shape.

[0082] Additionally, for example, a protrusion (not shown) may be provided on the lower surface of the interbus bar (100), and a coupling groove (not shown) may be provided in the second mounting groove (222a) so as to be coupled with the protrusion (not shown).

[0083] Referring to FIGS. 4 to 8, the first bulkhead (221) and the second bulkhead (222) may be provided with a shape and material that can be interposed between the battery modules (300) to block or reduce the transfer of heat and / or flame between the battery modules (300). For example, the first bulkhead (221) and the second bulkhead (222) may be provided with a material including aluminum.

[0084] Additionally, the case (130) of the inter-bus bar (100) mounted on the first bulkhead (221) and the second bulkhead (222) may also be provided with a shape and material capable of blocking or reducing the transfer of heat and / or flame between the battery modules (300).

[0085] The inter-bus bar (100) can be mounted on the first bulkhead (221) or the second bulkhead (222) to prevent heat transmission between different battery modules (300), and at the same time, electrically connect adjacent battery modules (300).

[0086]

[0087] Meanwhile, referring to FIGS. 2 to 8, a battery pack according to one embodiment of the present invention includes a pack housing (200) and a battery module (300).

[0088] As described above, the pack housing (200) includes an inter-bus bar (100), an outer frame (210), and a bulkhead (220). Since the pack housing (200) including the inter-bus bar (100) is the same as described above, a more detailed description will be omitted.

[0089] The battery module (300) may include a cell assembly (not shown), a module case (not shown), and a module terminal (310).

[0090] First, the cell assembly (not shown) may include a plurality of battery cells. The battery cells may be pouch-type secondary batteries including an electrode assembly, an electrode lead, and a battery case.

[0091] The electrode assembly may be formed of, but is not limited to, a jelly-roll type electrode assembly having a structure in which a separator is interposed between long sheet-shaped cathodes and anodes and then rolled up, a stack type electrode assembly having unit cells in which rectangular cathodes and anodes are stacked with a separator interposed between them, a stack-folding type electrode assembly in which the unit cells are rolled up by a long separator film, or a lamination-stack type electrode assembly in which the unit cells are stacked with a separator interposed between them and attached to each other.

[0092] The positive electrode is composed of a positive electrode current collector and a positive electrode active material applied to the upper and lower surfaces of the positive electrode current collector. A conductive material and a binder may be mixed with the positive electrode active material, and a filler may be further added as needed.

[0093] The negative electrode is composed of a negative electrode current collector and a negative electrode active material applied to the lower and upper surfaces of the negative electrode current collector. A conductive material and a binder may be additionally mixed into the negative electrode active material and coated on the negative electrode current collector.

[0094] The separator prevents shorting between the aforementioned negative electrode and positive electrode and only allows the movement of lithium ions. The material of the separator is preferably one selected from among polyethylene, polypropylene, polyethylene / polypropylene double layer, polyethylene / polypropylene / polyethylene triple layer, polypropylene / polyethylene / polypropylene triple layer, and organic fiber filter paper, but is not limited thereto.

[0095] The battery case that houses the electrode assembly forms a housing using a laminate sheet composed of an outer covering layer, a metal layer, and an inner covering layer.

[0096] Since the inner covering layer is in direct contact with the electrode assembly, it must have insulation and electrolytic resistance, and in order to seal it from the outside, the sealing area where the inner layers are thermally bonded must have excellent thermal bonding strength.

[0097] Materials for such inner covering layers may be selected from, but are not limited to, polyolefin resins such as polypropylene, polyethylene, polyethylene acrylic acid, and polybutylene, which have excellent chemical resistance and good sealing properties, polyurethane resins, and polyimide resins, and polypropylene, which has excellent mechanical properties such as tensile strength, rigidity, surface hardness, and impact strength, and excellent chemical resistance, is most preferable.

[0098] The metal layer in contact with the inner covering layer serves as a barrier layer that prevents moisture or various gases from penetrating into the battery from the outside, and a preferred material for this metal layer is an aluminum film that is lightweight and has excellent formability.

[0099] And the other side of the metal layer is provided with an outer covering layer, and this outer covering layer can use a heat-resistant polymer with excellent tensile strength, moisture permeability, and air permeability to protect the electrode assembly while ensuring heat resistance and chemical resistance, and examples thereof include, but are not limited to, nylon or polyethylene terephthalate.

[0100] Additionally, the module case (not shown) can store these cell assemblies (not shown) in its internal space.

[0101] The battery module (300) of the present invention is not limited to a specific shape or configuration, and can be provided with various battery modules (300).

[0102] The battery module (300) has a module terminal (310), and may be provided in multiple numbers. A plurality of battery modules (300) may be accommodated in a plurality of accommodation grooves (230) of the pack housing (200).

[0103] At this time, multiple battery modules (300) can be arranged so that the module terminals (310) face the second bulkhead (222).

[0104] Referring to FIGS. 5 and 6, the interbus bar (100) can be seated in the first seating groove (221a) to electrically connect the module terminals (310) of adjacent battery modules (300) along the second direction.

[0105] Also, referring to FIGS. 7 and 8, the interbus bar (100) can be seated in the second seating groove (222a) to electrically connect the module terminal (310) of the adjacent battery module (300) along the first direction.

[0106]

[0107] Next, a method for manufacturing a battery pack according to one embodiment of the present invention will be described with reference to FIGS. 2 to 8.

[0108] A method for manufacturing a battery pack according to the present invention comprises: (S1) a step of accommodating a plurality of battery modules (300) in a plurality of receiving grooves (230); (S2) a step of accommodating a plurality of inter-bus bars (100) in a first receiving groove (221a) and / or a second receiving groove (222a) to connect module terminals (310) provided in each of adjacent battery modules (300); and (S3) a step of electrically contacting a conductive member (110) and the module terminals (310).

[0109] In step (S2), the inter-bus bar (100) can be seated in the first seating groove (221a) to electrically connect the module terminals (310) of adjacent battery modules (300) along the second direction. In addition, in step (S2), the inter-bus bar (100) can be seated in the second seating groove (222a) to electrically connect the module terminals (310) of adjacent battery modules (300) along the first direction.

[0110] In step (S3), adjacent battery modules (300) can be electrically connected by electrically contacting module terminals (310) provided in each of the adjacent battery modules (300) with conductive members (110).

[0111] In addition, the method for manufacturing a battery pack according to the present invention may include, after step (S3), a step of adding an insulating material to the upper surface of the conductive member (110). Here, the insulating material may be heat-resistant silicone or an insulating tape.

[0112] For example, an insulating material may be added to the opposite side of one side of the conductive member (110) that makes electrical contact with the module terminal (310), thereby fixing the contact between the conductive member (110) and the module terminal (310). In addition, an insulating material may be added to the opposite side of one side of the conductive member (110) that makes electrical contact with the module terminal (310), thereby preventing other parts than the side where the conductive member (110) and the module terminal (310) make contact from being exposed to the discharge.

[0113] The method for manufacturing a battery pack according to the present invention can simplify the process more than the conventional method of fastening the interbus bar and module terminal with bolts, because the conductive member (110) is electrically connected to the module terminal (310) provided in each of the adjacent battery modules (300) by fixing the interbus bar (100) in the first fixing groove (221a) or the second fixing groove (222a).

[0114]

[0115] As described above, specific parts of the present invention have been described in detail. To those skilled in the art, such specific descriptions are merely preferred embodiments, and the scope of the present invention is not limited thereby. It is obvious to those skilled in the art that various changes and modifications are possible within the scope and technical idea of ​​the present invention, and it is natural that such changes and modifications fall within the scope of the appended patent claims.

[0116]

[0117] (Explanation of symbols)

[0118] 100: Interbusbar

[0119] 110: Conductive member 111: Insulating material

[0120] 120: Insulation 121: Insertion hole

[0121] 130: Case 131: Through hole

[0122] 200: Pack Housing

[0123] 210: Outer frame

[0124] 220: Bulkhead

[0125] 221: First bulkhead 221a: First anchoring groove

[0126] 222: Second bulkhead 222a: Second anchoring groove

[0127] 230: Acceptance Home

[0128] 300: Battery module

[0129] 310: Module terminal

Claims

1. A conductive member electrically connected to a module terminal provided in a battery module; An insulating member provided to surround the remaining area except for the area where the conductive member comes into contact with the module terminal; and An interbus bar characterized by including a case into which the insulating part is inserted.

2. In paragraph 1, An inter-busbar characterized in that the above conductive member has a linear shape.

3. In paragraph 1, An interbus bar characterized in that the case is provided with a through hole formed so that the conductive member and the insulating member pass through it.

4. In paragraph 1, An interbus bar characterized in that the above conductive member is provided with an electrically conductive material including a metal material.

5. In paragraph 4, An interbus bar characterized in that an insulating material is applied to the remaining area of ​​the outer surface of the conductive member.

6. In paragraph 1, An interbus bar characterized in that the above insulating part is made of an electrically insulating material.

7. In a pack housing including an inter-bus bar according to any one of clauses 1 to 6, outer frame; A grid-shaped bulkhead provided on the inside of the outer frame and arranged to form a plurality of receiving grooves for receiving the battery modules; and A pack housing characterized by including an inter-bus bar mounted on the bulkhead.

8. In paragraph 7, The above bulkhead, A first bulkhead arranged along a first direction parallel to the axial direction in which the module terminal of the battery module is arranged; and A pack housing characterized by including a second bulkhead arranged along a second direction orthogonal to the first direction.

9. In paragraph 8, The first bulkhead is provided with a first mounting groove formed to allow the inter-bus bar to be mounted thereon. A pack housing, characterized in that the first settling groove is formed along the second direction with respect to the first bulkhead.

10. In paragraph 8, The second bulkhead is provided with a second mounting groove formed to allow the inter-bus bar to be mounted thereon. A pack housing, characterized in that the second settling groove is formed along the first direction with respect to the second bulkhead.

11. A battery pack including a pack housing according to any one of claims 7 to 10, The pack housing including the interbus bar, the outer frame and the bulkhead; and A battery pack comprising a plurality of battery modules having the above module terminals.

12. In paragraph 11, The above interbus bar is, A battery pack characterized in that the battery module is seated in the first seating groove so as to electrically connect the module terminals of the adjacent battery modules along the second direction.

13. In paragraph 11, The above interbus bar is, A battery pack characterized in that the battery module is seated in the second seating groove so as to electrically connect the module terminals of adjacent battery modules along the first direction.

14. A method for manufacturing a battery pack according to any one of claims 11 to 13, (S1) A step of accommodating the plurality of battery modules in the plurality of accommodating grooves; (S2) a step of mounting a plurality of the inter-bus bars in the first mounting groove and / or the second mounting groove to connect the module terminals provided in each of the adjacent battery modules; and (S3) A method for manufacturing a battery pack, characterized by comprising a step of electrically contacting the conductive member and the module terminal.

15. In paragraph 14, A method for manufacturing a battery pack, characterized in that after the above step (S3), it further includes a step of adding an insulating material to the upper surface of the conductive member.