Rack assembly and battery pack including rack assembly

Abstract

The invention relates to a rack assembly and a battery pack including the same. A rack assembly of the present disclosure includes: a rack frame including a rack scaffold and a rack laminate coupled to the rack scaffold; and a tray coupled to the rack laminate, the rack laminate being elongated in a front-back direction, the tray including: a tray body facing the rack laminate and located on the rack laminate; and a tray wall extending upwardly from one side of the tray body, the one side of the tray body being extendable rearward from a front end of the tray body to a rear end of the tray body.

Description

Technical Field

[0001] The present disclosure relates to a rack assembly and a battery pack including the rack assembly. In particular, the present disclosure relates to a rack assembly in which a battery unit can be easily replaced and a battery pack including the rack assembly. Background Art

[0002] In a conventional battery pack or energy storage system (ESS), multiple battery cells are stacked together and combined with bus bars and loaded onto a battery rack. Due to this structure, the process of installing or replacing multiple battery cells on a rack in a conventional battery pack or energy storage system can be very complicated and relatively costly. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The present disclosure is directed to solving the above-referenced problems and other problems.

[0005] Another object of the present disclosure is to provide a rack assembly that easily loads a plurality of battery cells and a battery pack including the rack assembly.

[0006] Another object of the present disclosure is to provide a rack assembly for easily replacing a battery unit and a battery pack including the rack assembly.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose or other purposes, according to one aspect of the present disclosure, a rack assembly may be provided, comprising: a rack frame, comprising a rack scaffold and a rack layer plate coupled to the rack scaffold; and a pallet coupled to the rack layer plate, the rack layer plate extending in a front-to-rear direction, the pallet comprising: a pallet body facing the rack layer plate and located on the rack layer plate; and a pallet wall extending upward from one side of the pallet body, the one side of the pallet body extending backward from the front end of the pallet body to the rear end of the pallet body.

[0009] According to another aspect of the present disclosure, a battery pack can be provided, which includes: a rack assembly, including a rack frame and a tray coupled to the rack frame; a plurality of battery cells loaded onto the tray and stacked in a front-to-rear direction; and a bus bar assembly coupled to the plurality of battery cells, the rack frame including: a rack scaffold; and a rack layer coupled to the rack scaffold, the rack layer extending in the front-to-rear direction, the pallet including: a pallet body facing the rack layer and located on the rack layer; a pallet connector extending from the pallet body and coupled to the rack layer; and a pallet wall extending upward from one side of the pallet body, the one side of the pallet body extending rearward from the front end of the pallet body to the rear end of the pallet body.

[0010] (III) Beneficial effects

[0011] According to at least one of the embodiments of the present disclosure, a rack assembly that can easily load a plurality of battery cells and a battery pack including the rack assembly can be provided.

[0012] According to at least one of the embodiments of the present disclosure, a rack assembly in which a battery unit is easily replaced and a battery pack including the rack assembly may be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a diagram illustrating a rack frame of a rack assembly according to one embodiment of the present disclosure.

[0014] Figure 2 is a diagram illustrating a tray according to one embodiment of the present disclosure.

[0015] Figure 3 Observe from different angles Figure 2 Diagram of the tray shown.

[0016] Figure 4 is a diagram showing a rack assembly including a tray and a rack frame.

[0017] Figure 5 is a diagram illustrating a battery cell 100 according to one embodiment of the present disclosure.

[0018] Figure 6 is a diagram showing a battery pack according to one embodiment of the present disclosure.

[0019] Figure 7 It is shown Figure 6 A diagram of a battery cell and a portion of a tray is shown.

[0020] Figure 8 It shows the observation from different angles Figure 7 A diagram showing the status of the battery unit and tray.

[0021] Fig. 9 It is shown Figure 8 Figure of part A shown.

[0022] Fig.10 It is shown Figure 6 A diagram of a portion of a cross section of a battery pack is shown.

[0023] Fig.11 It is shown in detail Fig.10 Figure 1. A diagram of the rack shelves shown.

[0024] Fig.12 1 is a diagram showing a state in which a bus bar assembly is coupled to a battery unit loaded into a rack assembly.

[0025] Fig.13 is a perspective view showing a bus bar assembly according to one embodiment of the present disclosure.

[0026] Fig.14 is a perspective view showing a bus bar according to one embodiment of the present disclosure.

[0027] Fig.15 yes Fig.14 A plan view of the bus bar is shown.

[0028] Fig.16 is a plan view of a support frame according to one embodiment of the present disclosure.

[0029] Fig.17 It is shown Fig.13 FIG. 10A of Part B of FIG. 10B .

[0030] Fig.18 It is shown Fig.17 A cross-section of the bus bar assembly shown is taken along C1 - C2 .

[0031] Fig.19 is a perspective view showing the overall form of a battery pack according to an embodiment of the present disclosure.

[0032] Fig. 20 is a diagram showing an energy storage house according to one embodiment of the present disclosure.

[0033] Fig.21 is a diagram illustrating an energy storage system according to one embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] Figure 1 is a diagram illustrating a rack frame of a rack assembly according to one embodiment of the present disclosure.

[0035] Reference Figure 1, the rack assembly 300 may include a rack frame 310. The rack frame 310 may include a rack scaffold 311. The rack scaffold 311 may form a skeleton of the rack frame 310.

[0036] For example, the rack scaffold 311 may form the bottom of the rack frame 310. For example, the rack scaffold 311 may form the top of the rack frame 310. For example, the rack scaffold 311 may form the pillar of the rack frame 310.

[0037] The rack frame 310 may include a rack deck 312. The rack deck 312 may have a board or plate shape. For example, the rack deck 312 may form an upper surface and a lower surface.

[0038] The rack layer plate 312 may be coupled or fastened to the rack scaffold 311. The rack layer plate 312 may perform a function of a shelf. For example, a plurality of battery cells may be loaded onto the rack layer plate 312.

[0039] The rack layer plate 312 may have a shape extending or elongated in one direction. For example, the rack layer plate 312 may have a shape extending or elongated in the front-to-back direction. The length direction of the rack layer plate 312 may be the front-to-back direction.

[0040] A plurality of rack layers 312 may be provided. For example, the rack frame 310 may include a plurality of rack layers 312. At least a portion of the plurality of rack layers 312 may be spaced apart in the up-and-down direction.

[0041] For example, among two rack layer plates 312 adjacent to each other in the up-down direction, a lower surface of the rack layer plate 312 disposed at an upper position may face an upper surface of the rack layer plate 312 disposed at a lower position.

[0042] The rack frame 310 may have rigidity. For example, the rack frame 310 may be made of a material including metal. For example, the rack frame 310 may have conductivity.

[0043] Figure 2 is a diagram illustrating a tray according to one embodiment of the present disclosure. Figure 3 Observe from different angles Figure 2 Diagram of the tray shown.

[0044] Reference Figure 2 and Figure 3The tray 320 may be made of a material including an electrical insulating substance. For example, the tray 320 may be made of a material including a polymer compound or plastic.

[0045] The tray 320 may include a tray body 321. The tray body 321 may have a board or plate shape. For example, the tray body 321 may form two surfaces.

[0046] For example, the tray body 321 may form an upper surface and a lower surface. The thickness of the tray body 321 may be a distance between the upper surface and the lower surface of the tray body 321.

[0047] The tray body 321 may have a shape extending or elongated in one direction. For example, the direction in which the tray body 321 extends or elongates may be the length direction of the tray body 321. For example, the length direction of the tray body 321 may be the front-rear direction.

[0048] The other side of the tray body 321 may be located on an opposite side of the one side of the tray body 321. The one side and the other side of the tray body 321 may extend along the length direction of the tray body 321. The width direction of the tray body 321 may be parallel to the direction from the one side of the tray body 321 toward the other side of the tray body 321.

[0049] The tray 320 may include a tray wall 322. The tray wall 322 may extend from one side of the tray body 321. For example, the tray wall 322 may extend backward from one end of the front end of the tray body 321 to one end of the rear end of the tray body 321. For example, the tray wall 322 may extend upward from one side of the tray body 321. The tray wall 322 may form a height relative to the tray body 321.

[0050] The tray 320 may include a tray partition 323. The tray partition 323 may be located or provided on one side of the tray body 321. For example, the tray partition 323 may protrude from the upper surface of the tray body 321.

[0051] The tray partition 323 may have a shape extending or elongated in the width direction of the tray body 321. For example, one end of the tray partition 323 may be connected to or adjacent to the tray wall 322, and the other end of the tray partition 323 may be connected to or adjacent to the other side of the tray body 321.

[0052] A plurality of tray partitions 323 may be provided. For example, the tray 320 may include a plurality of tray partitions 323. The plurality of tray partitions 323 may be provided along the length direction of the tray body 321. For example, the plurality of tray partitions 323 may be provided along the front-rear direction.

[0053] The plurality of tray partitions 323 may be spaced apart from each other. For example, the distance between two adjacent tray partitions 323 among the plurality of tray partitions 323 may correspond to the size of the battery cell placed on the tray 320 .

[0054] The tray 320 may include a tray contactor 325. The tray contactor 325 may be connected or coupled to the tray wall 322, or the tray contactor 325 may be formed on the tray wall 322. The tray contactor 325 may protrude from the tray wall 322. For example, the tray contactor 325 may protrude from the tray wall 322 toward the other side of the tray body 321.

[0055] The tray 320 may include a tray saddle 326. The tray saddle 326 may be located on the upper surface of the tray body 321, or the tray saddle 326 may be coupled or connected to the upper surface of the tray body 321. For example, the tray saddle 326 may protrude from the upper surface of the tray body 321. The tray saddle 326 may be adjacent to the tray wall 322.

[0056] A plurality of tray brackets 326 may be provided. For example, the tray 320 may include a plurality of tray brackets 326. The plurality of tray brackets 326 may be provided along the length direction of the tray body 321.

[0057] For example, a plurality of tray brackets 326 and a plurality of tray partitions 323 may be arranged along the length direction of the tray body 321 and may be arranged alternately. For example, one tray partition 323 of the plurality of tray brackets 326 may be arranged between two adjacent tray brackets 326 of the plurality of tray brackets 326.

[0058] The tray 320 may include a tray seat 327. The tray seat 327 may be formed on an upper surface of the tray body 321 or coupled to an upper surface of the tray body 321. The tray seat 327 may protrude from the upper surface of the tray body 321.

[0059] The tray seat 327 may be located at the other side of the tray body 321, or the tray seat 327 may be connected to or adjacent to the other side of the tray body 321. For example, the tray seat 327 may be located at the opposite side of the tray bracket 326.

[0060] A plurality of tray seats 327 may be provided. For example, the tray 320 may include a plurality of tray seats 327. The plurality of tray seats 327 may correspond to the plurality of tray brackets 326, respectively.

[0061] The tray seat 327, the tray body 321 and the tray bracket 326 may be formed in a concave shape facing upward. When the battery cells are placed on the tray 320, the tray seat 327 and the tray bracket 326 may contact the battery cells, and the tray body 321 may be spaced apart from the battery cells.

[0062] Thus, refrigerant gas can flow through the gap between the battery cell and the tray body 321, thereby effectively cooling the battery cell. In addition, when the battery cell swells, the gap between the battery cell and the tray body 321 can accommodate the swollen battery cell.

[0063] The tray 320 may include a tray stopper 328. The tray stopper 328 may be located at the other side of the tray body 321, or the tray stopper 328 may be adjacent to the other side of the tray body 321, or the tray stopper 328 may be connected to the other side of the tray body 321. The tray stopper 328 may be located at the upper surface of the tray seat 327 or coupled to the upper surface of the tray seat 327. The tray stopper 328 may protrude upward from the tray seat 327.

[0064] When the battery cell is placed on the tray 320, the battery cell may be disposed between the tray stopper 328 and the tray contactor 325. The tray stopper 328 and the tray contactor 325 may suppress movement of the battery cell. For example, the tray stopper 328 and the tray contactor 325 may suppress movement of the battery cell along the width direction of the tray body 321.

[0065] The tray 320 may be coupled or secured to the rack frame 310 (see Figure 1 ). For example, the tray 320 may include a tray coupler 324. The tray coupler 324 may be located on the tray body 321, or the tray coupler 324 may be coupled or connected to the tray body 321. The tray coupler 324 may protrude downward from a lower surface of the tray body 321.

[0066] The tray connector 324 may be coupled or secured to the rack frame 310 (see Figure 1 ). The tray connector 324 may be formed in a hook shape. For example, the tray connector 324 may be coupled or fastened to the rack layer 312 (see Figure 1 ).

[0067] Figure 4is a diagram showing a rack assembly including a tray and a rack frame.

[0068] Reference Figures 1 to 4 , the tray 320 may be coupled to the rack frame 310. For example, the tray 320 may be coupled to the rack layer 312. For example, each of the upper surface and the lower surface of the rack layer 312 may be coupled to the tray 320.

[0069] For example, one rack layer 312 may be combined with two pallets 320. For example, two pallets 320 may be provided between two rack layers 312 adjacent in the up-down direction. For example, when one side of a rack layer 312 faces an adjacent rack layer 312, the pallet 320 may be combined or fastened to one side of the rack layer 312.

[0070] Figure 5 is a diagram showing a battery cell 100 according to an embodiment of the present disclosure. Figure 5 The battery cell 100 may include a battery cell body 110 . The battery cell body 110 may include a battery cell case 111 .

[0071] The battery cell housing 111 may form at least a portion of the appearance of the battery cell body 110. The battery cell housing 111 may form a space inside. For example, the space formed in the battery cell housing 111 may be open toward one side or open at one side. For example, the battery cell housing 111 may form a space open upward. For example, the space formed in the battery cell housing 111 may be open at the upper end of the battery cell housing 111.

[0072] The battery cell body 110 may include an electrode assembly (not shown). The electrode assembly may include a positive electrode, a negative electrode, and a separator. The battery cell housing 111 may accommodate the electrode assembly. The battery cell housing 111 may accommodate an electrolyte or an electrolyte solution.

[0073] The battery cell body 110 may include a cap assembly 112. The cap assembly 112 may be coupled, connected, or fastened to the battery cell case 111. The cap assembly 112 may form another portion of the appearance of the battery cell body 110. The cap assembly 112 may have a board or plate shape.

[0074] For example, the cap assembly 112 may form one side of the battery cell body 110. For example, the cap assembly 112 may form an upper surface of the battery cell body 110. The cap assembly 112 may close an open space formed in the battery cell case 111.

[0075] The battery cell 100 may include an electrode lead 120. The electrode lead 120 may be connected to an electrode assembly (not shown). For example, the electrode lead 120 may extend from the electrode assembly (not shown).

[0076] The electrode lead 120 may protrude from the battery cell body 110. For example, the electrode lead 120 may protrude from the cap assembly 112. For example, the electrode lead 120 may protrude from the outer side surface of the cap assembly 112. The electrode lead 120 may be formed in a column shape. For example, the electrode lead 120 may have a cylindrical shape.

[0077] The electrode lead 120 may be provided in plurality. For example, the electrode lead 120 may include a first electrode lead 121 and a second electrode lead 122. For example, the first electrode lead 121 and the second electrode lead 122 may be spaced apart. For example, the first electrode lead 121 and the second electrode lead 122 may be located at the cap assembly 112 or coupled to the cap assembly 112.

[0078] For another example, the space formed in the battery cell case 111 may be open on both sides. For example, the space formed in the battery cell case 111 may be open upward and downward.

[0079] In this case, two cap assemblies 112 may be provided. For example, an upper cap assembly 112 may be coupled to an upper end of the battery cell housing 111, and a lower cap assembly 112 may be coupled to a lower end of the battery cell housing 111. In this case, a first electrode lead 121 may be located at or coupled to the upper cap assembly 112, and a second electrode lead 122 may be located at or coupled to the lower cap assembly 112.

[0080] exist Figure 5 In the embodiment, the battery cell 100 is positioned so that the cover assembly 112 faces upward, but is loaded on the rack assembly 300 (refer to Figure 4 ) The posture of the battery cell 100 is not limited to Figure 5 For example, when the battery unit 100 is loaded on the rack assembly 300 (refer to Figure 4 ), the cover assembly 112 may be oriented in a horizontal direction and the battery cell housing 111 may face the rack layer plate 312 (see Figure 1 ).

[0081] Figure 6 is a diagram showing a battery pack according to one embodiment of the present disclosure. Figure 6 In the figure, for convenience of description, only a part of the battery pack 10 may be shown.

[0082] Reference Figures 1 to 6, multiple battery cells 100 can be stacked in one direction. For example, multiple battery cells 100 can be arranged in the horizontal direction between two rack layers 312 adjacent in the up-down direction. For example, multiple battery cells 100 can be arranged in the front-to-back direction between two rack layers 312 adjacent in the up-down direction.

[0083] The battery cell 100 may be mounted between two frame plates 312 adjacent in the up-down direction. For example, when the battery cell 100 moves in the direction in which the surface formed on the opposite side of the cap assembly 112 of the surface of the battery cell housing 111 faces, the battery cell 100 may be mounted between two frame plates 312 adjacent in the up-down direction.

[0084] When the battery cell 100 moves in the direction toward which the cap assembly 112 faces, the battery cell 100 mounted between two frame plates 312 adjacent in the vertical direction can be separated from the frame assembly 300. In this way, the battery cell 100 can be easily combined with or separated from the frame assembly 300.

[0085] Figure 7 It is shown Figure 6 A diagram of a battery cell and a portion of a tray is shown. Figure 8 It shows the observation from different angles Figure 7 A diagram showing the status of the battery unit and tray. Fig. 9 It is shown Figure 8 Figure of part A shown.

[0086] Reference Figures 1 to 9 The tray 320 may include a lower tray 320x and an upper tray 320y. The lower tray 320x and the upper tray 320y may be symmetrically arranged. A plurality of battery cells 100 may be located between the two trays 320.

[0087] A plurality of battery cells 100 may be arranged in one direction. For example, a plurality of battery cells 100 may be arranged in the front-rear direction between the lower tray 320x and the upper tray 320y.

[0088] For example, the plurality of battery cells 100 may include a front battery cell 100c and a rear battery cell 100d. The front battery cell 100c may be located at the frontmost side of the plurality of battery cells 100. The rear battery cell 100d may be located at the rearmost side of the plurality of battery cells 100.

[0089] For example, the lower tray 320x may be located below the plurality of battery cells 100. The lower tray 320x may support the plurality of battery cells 100. The lower tray 320x may face or contact the lower surfaces of the plurality of battery cells 100. The lower tray 320x may face or contact one side of the battery cell housing 111 of the plurality of battery cells 100.

[0090] For example, the upper tray 320y may be located above the plurality of battery cells 100. The upper tray 320y may face or contact the upper surface of the plurality of battery cells 100. The upper tray 320y may face or contact the other side of the battery cell housing 111 of the plurality of battery cells 100.

[0091] The cap assemblies 112 of the plurality of battery cells 100 may be arranged in a front-to-rear direction. The cap assemblies 112 of the plurality of battery cells 100 may face or be oriented in one direction. For example, the cap assemblies 112 of the plurality of battery cells 100 may face or be oriented in a horizontal direction.

[0092] The cap assembly 112 of each of the plurality of battery cells 100 may have a shape extending or elongated in one direction. For example, the cap assembly 112 of each of the plurality of battery cells 100 may have a shape extending or elongated in the up-down direction. For example, the cap assembly 112 of each of the plurality of battery cells 100 may extend upward from the lower tray 320x to the upper tray 320y.

[0093] The first electrode lead 121 and the second electrode lead 122 of each of the plurality of battery cells 100 may be disposed in the up-down direction. For example, in each of the plurality of battery cells 100, the first electrode lead 121 may be located above or below the second electrode lead 122.

[0094] For example, in two adjacent battery cells 100 among the plurality of battery cells 100 , the first electrode lead 121 of the preceding battery cell 100 may be located in front of the second electrode lead 121 of the succeeding battery cell 100 .

[0095] For example, in two adjacent battery cells 100 among the plurality of battery cells 100 , the second electrode lead 122 of the preceding battery cell 100 may be located in front of the first electrode lead 122 of the succeeding battery cell 100 .

[0096] The tray partition 323 may be located between two adjacent battery cells 100 of the plurality of battery cells 100. Each of the plurality of tray seats 327 may be coupled to or in contact with a corresponding battery cell 100 of the plurality of battery cells 100. Each of the plurality of tray brackets 326 may be coupled to or in contact with a corresponding battery cell 100 of the plurality of battery cells 100. Each of the plurality of tray contactors 325 may be coupled to or in contact with a corresponding battery cell 100 of the plurality of battery cells 100. Each of the plurality of tray stoppers 328 may be coupled to or in contact with a corresponding battery cell 100 of the plurality of battery cells 100.

[0097] The tray contactor 325 may support the battery cell 100. For example, the tray contactor 325 may support the battery cell 100 at opposite sides of the cap assembly 112 or opposite sides of the electrode lead 120.

[0098] The tray contactor 325 may protrude toward the battery cell 100. For example, one surface of the tray contactor 325 may be inclined with respect to the battery cell 100. Therefore, an area of ​​a surface where the tray contactor 325 and the battery cell 100 contact each other may be relatively small.

[0099] The tray seat 327 and the tray bracket 326 may support the battery cell 100. For example, the tray seat 327 and the tray bracket 326 of the lower tray 320x may support the battery cell 100 from below the battery cell 100. For example, the tray seat 327 and the tray bracket 326 of the upper tray 320y may support the battery cell 100 from above the battery cell 100.

[0100] A gap may be formed between the tray body 321 and the battery cell 100. The tray seat 327, the tray body 321, and the tray bracket 326 may form a concave shape facing the battery cell 100. Even if the battery cell 100 expands, at least a portion of the increased volume of the battery cell 100 may be accommodated between the tray seat 327 and the tray bracket 326.

[0101] Fig.10 It is shown Figure 6 A diagram of a portion of a cross section of a battery pack is shown. Fig.11 It is shown in detail Fig.10 Figure 1 shows a rack deck. Fig.10 and Fig.11 In the figure, it can be observed that the cross section of the rack plate 312 and the battery cell 100 is cut along a direction perpendicular to the length direction of the rack plate 312. For example, the length direction of the rack plate 312 can be the front-to-back direction. For example, the length direction of the rack plate 312 can be the direction in which multiple battery cells 100 are stacked.

[0102] Reference Fig.10 and Fig.11 , the rack layer 312 can be combined or fastened to the rack scaffold 311 (refer to Figure 1 For example, the rack scaffold 311 (refer to Figure 1 ) can support the rack layer 312. For example, the front end and the rear end of the rack layer 312 can be combined or fastened to the rack scaffold 311 (refer to Figure 1 ).

[0103] The rack layer 312 may include a rack layer core 3121. The rack layer core 3121 may form a central portion of the rack layer 312. The rack layer core 3121 may be formed in a convex shape facing upward. The rack layer core 3121 may be elongated or extended along the length direction of the rack layer 312.

[0104] The rack layer 312 may include a rack layer recess 3122. The rack layer recess 3122 may extend from the rack layer center 3121. For example, the rack layer recess 3122 may extend from the rack layer center 3121 along the width direction of the rack layer 312.

[0105] The frame deck recess 3122 may extend from the frame deck center 3121 in two directions.

[0106] The first width direction and the second width direction may be parallel to the width direction of the frame layer plate 312 .

[0107] The first width direction and the second width direction may be opposite directions.

[0108] For example, the rack layer recess 3122 may include a first rack layer recess 3122t extending from the rack layer center 3121 along the first width direction. For example, the rack layer recess 3122 may include a second rack layer recess 3122u extending from the rack layer center 3121 along the second width direction.

[0109] The first width direction may be a direction from the rack layer center 3121 toward the first rack layer recess 3122t. The second width direction may be a direction from the rack layer center 3121 toward the second rack layer recess 3122u.

[0110] The rack layer plate recess 3122 may include or refer to at least one of a first rack layer plate recess 3122t and a second rack layer plate recess 3122u. The rack layer plate recess 3122 may be convex facing downward. The rack layer plate recess 3122 may be concave facing upward.

[0111] The rack layer 312 may include a rack layer protrusion 3123. The rack layer protrusion 3123 may extend from the rack layer recess 3122. For example, the rack layer protrusion 3123 may extend from the rack layer recess 3122 along the width direction of the rack layer 312.

[0112] For example, the rack layer protrusion 3123 may include a first rack layer protrusion 3123t extending from the first rack layer concave portion 3122t in the first width direction. For example, the rack layer protrusion 3123 may include a second rack layer protrusion 3123u extending from the second rack layer concave portion 3122u in the second width direction.

[0113] The rack layer plate protrusion 3123 may include or refer to at least one of a first rack layer plate protrusion 3123t and a second rack layer plate protrusion 3123u. The rack layer plate protrusion 3123 may protrude upward. The rack layer plate protrusion 3123 may be concave downward.

[0114] The rack layer 312 may include a rack layer end 3124. The rack layer end 3124 may be formed by extending downward from the rack layer protrusion 3123. For example, the rack layer end 3124 may be formed by extending downward from the end of the rack layer protrusion 3123 and bending toward the center of the rack layer.

[0115] For example, the rack layer end 3124 may include a first rack layer end 3124t extending downward from the first rack layer protrusion 3123t. For example, the rack layer end 3124 may include a second rack layer end 3214u extending downward from the second rack layer end 3213u.

[0116] The rack layer end 3124 may include or refer to at least one of a first rack layer end 3124t and a second rack layer end 3124u. The rack layer end 3124 may face downward. The rack layer end 3124 may face the rack layer center 3121 and be recessed.

[0117] The rack plate concave portion 3122 and the rack plate convex portion 3123 may be concave or convex facing different directions. With this structure, the rack plate 312 may have elasticity. The rack plate 312 may be made of a material including metal. Since the rack plate 312 has elasticity, the battery cell 100 may be easily loaded on the rack assembly 300 (refer to Figure 1 ) or with the rack assembly 300 (refer to Figure 1 )Separation.

[0118] The battery cell 100 may be disposed between two rack layers 312 adjacent in the up-down direction. For example, the lower rack layer 312x may be located below the battery cell 100. For example, the upper rack layer 312y may be located above the battery cell 100. The tray 320 may be coupled to the rack layer 312.

[0119] For example, the lower tray 320x may be disposed on and coupled to the lower rack layer 312x. For example, the lower tray 320x may be coupled to the rack layer protrusion 3123 of the lower rack layer 312x. For example, the rack layer protrusion 3123 of the lower rack layer 312x may support the lower tray 320x below the lower tray 320x.

[0120] For example, the upper tray 320y may be disposed below the upper rack layer 312y and coupled to the upper rack layer 312y. For example, the upper tray 320y may be coupled to the rack layer recess 3122 of the upper rack layer 312y. For example, the rack layer recess 3122 of the upper rack layer 312y may support the upper tray 320y above the upper tray 320y.

[0121] A plurality of trays 320 may be disposed on both sides of the frame layer plate 312 based on the width direction of the frame layer plate 312 .

[0122] For example, the first tray 320t may be coupled to the first rack layer plate recess 3122t or the first rack layer plate protrusion 3123t. For example, the first lower tray 320tx may be coupled to the first rack layer plate protrusion 3123t of the lower rack layer plate 312x. For example, the first upper tray 320ty may be coupled to the first rack layer plate recess 3122t of the upper rack layer plate 312y. The first tray 320t may include or refer to at least one of the first lower tray 320tx and the first upper tray 320ty.

[0123] For example, the second tray 320u may be coupled to the second rack layer plate recess 3122u or the second rack layer plate protrusion 3123u. For example, the second lower tray 320ux may be coupled to the second rack layer plate protrusion 3123u of the lower rack layer plate 312x. For example, the second upper tray 320uy may be coupled to the second rack layer plate recess 3122u of the upper rack layer plate 312y. The second tray 320u may include or refer to at least one of the second lower tray 320ux and the second upper tray 320uy.

[0124] The lower tray 320x may include or refer to at least one of a first lower tray 320tx and a second lower tray 320ux. The upper tray 320y may include or refer to at least one of a first upper tray 320ty and a second upper tray 320uy.

[0125] The battery cell 100 may include a first battery cell 100t and a second battery cell 100u. The battery cell 100 may include or refer to at least one of the first battery cell 100t and the second battery cell 100u.

[0126] The first battery cell 100t may be located between the first lower tray 320tx and the first upper tray 320ty. The second battery cell 100u may be located between the second lower tray 320ux and the second upper tray 320uy.

[0127] The cap assembly 112 (see Figure 5 ) is oriented or faces the first width direction. The cap assembly 112 of the second battery cell 100u may be oriented or faces the second width direction.

[0128] Fig.12 1 is a diagram showing a state in which a bus bar assembly is coupled to a battery unit loaded into a rack assembly.

[0129] Reference Fig.12 , multiple battery cells 100 can be stacked in the front-to-back direction. For example, multiple battery cells 100 can be located between two adjacent rack layers 312 arranged in the up-down direction (refer to Figure 1 )between.

[0130] The plurality of battery cells 100 stacked in the front-to-back direction may be connected by the bus bar assembly 200. The bus bar assembly 200 may extend or be elongated in the front-to-back direction. The bus bar assembly 200 may face the cap assembly 112 (refer to FIG. 1 ) of the plurality of battery cells 100. Figure 5 For example, the bus bar assembly 200 may be connected or coupled to the electrode leads 120 of the plurality of battery cells 100 (see Figure 5 ).

[0131] Fig.13 is a perspective view showing a bus bar assembly according to one embodiment of the present disclosure.

[0132] Reference Fig.13 The bus bar assembly 200 may include a bus bar 210. The bus bar 210 may be made of a conductive material. For example, the bus bar 210 may be made of a material including metal.

[0133] The bus bar 210 can connect two adjacent battery cells 100 (see Fig.12For example, the bus bar 210 may be coupled to two battery cells 100 adjacent to each other in the front-rear direction (see Fig.12 ).

[0134] For example, when two battery cells 100 adjacent to each other in the front-to-back direction are electrically connected (see Fig.12 ), the front end of the bus bar 210 is connected to the preceding battery cell 100 (refer to Fig.12 ) of the first electrode lead 121 (refer to Figure 5 ), and the rear end of the bus bar 210 may be coupled to the rear battery cell 100 (refer to Fig.12 ) of the second electrode lead 122 (refer to Figure 5 ). The battery cell 100 in front (refer to Fig.12 ) of the first electrode lead 121 (refer to Figure 5 ) can be connected to the following battery cell 100 (refer to Fig.12 ) of the second electrode lead 122 (refer to Figure 5 ) have opposite polarity.

[0135] The busbar assembly 200 may include a support frame 220. The support frame 220 may include a frame body 221. The frame body 221 may extend or elongate in one direction. For example, the frame body 221 may extend or elongate in a front-rear direction. The frame body 221 may be made of an insulating material. For example, the frame body 221 may be made of a material including a polymer substance or plastic.

[0136] The frame body 221 may face the cap assembly 112 of the plurality of battery cells 100 (see Figure 5 For example, the inner surface of the frame body 221 may face the cap assemblies 112 of the plurality of battery cells 100 (see Figure 5 ).

[0137] The frame body 221 may be located at the first electrode lead 121 (see Figure 5 ) and the second electrode lead 122 (refer to Figure 5 For example, the frame body 221 may cross the first electrode lead 121 (refer to Figure 5 ) and the second electrode lead 122 (refer to Figure 5 )between.

[0138] The support frame 220 may be coupled to the plurality of bus bars 210. For example, a portion of the plurality of bus bars 210 may be coupled to an upper end of the support frame 220. For example, another portion of the plurality of bus bars 210 may be coupled to a lower end of the support frame 220.

[0139] The support frame 220 may include a wire holder 222. The wire holder 222 may be located or formed on the frame body 221, or the wire holder 222 may be coupled to the frame body 221. The wire holder 222 may be located or formed on the outer surface of the frame body 221, or the wire holder 222 may be coupled to the outer surface of the frame body 221.

[0140] The wire support 222 may be coupled to the wire unit 230. For example, wires of the wire unit 230 may be placed on the wire support 222. The wire unit 230 may be coupled to the bus bar 210 to obtain information about the battery cell 100 (refer to FIG. 1 ). Fig.12 ) information.

[0141] A plurality of wire supports 222 may be provided. The plurality of wire supports 222 may be spaced apart in the front-rear direction. The wires of the wire unit 230 may be provided along the plurality of wire supports 222 .

[0142] Fig.14 is a perspective view showing a bus bar according to one embodiment of the present disclosure. Fig.15 yes Fig.14 A plan view of the bus bar is shown.

[0143] Reference Fig.14 and Fig.15 The bus bar 210 may include a bus bar body 211. The bus bar body 211 may form a central portion of the bus bar 210. The bus bar body 211 may face two battery cells 100 adjacent to each other in the front-rear direction (refer to Fig.12 )’s boundary.

[0144] For example, the inner surface of the bus bar body 211 may face two adjacent battery cells 100 (see Fig.12 ) boundary. The inner side of the bus bar body 211 may be aligned with the battery cell 100 (see Fig.12 ) is spaced apart. In other words, between the bus bar body 211 and the battery cell 100 (refer to Fig.12 ) can form a gap.

[0145] The bus bar body 211 may be coupled to the support frame 220 (see Fig.13For example, the bus bar 210 may include a frame coupling hole 212 . The frame coupling hole 212 may be an opening portion formed in the bus bar body 211 .

[0146] The frame coupling hole 212 may extend from the inner side of the bus bar body 211 to the outer side of the bus bar body 211. Fig.13 ) can be inserted into the frame coupling hole 212.

[0147] The frame coupling hole 212 may be elongated in the up-down direction. Fig.13 ) can move in the frame coupling hole 212 along the up and down directions.

[0148] Support frame 220 (see Fig.13 ) and the bus bar 210 may be arranged in the up-down direction. Fig.13 ) and the bus bar 210 may be easily coupled to each other through the frame coupling hole 212 elongated in the up-down direction.

[0149] The bus bar 210 may include a bus bar wing 215. The bus bar wing 215 may extend from the bus bar body 211. The bus bar 210 may face the battery cell 100 (see Figure 5 ) and is concave. For example, the inner side of the bus bar 210 may be concave. The inner side of the bus bar 210 may face the battery cell 100 (refer to Figure 5 ).

[0150] A plurality of bus wing 215 may be provided. For example, bus bar 210 may include front bus wing 216 and rear bus wing 217. Bus wing 215 may include or refer to at least one of front bus wing 216 and rear bus wing 217.

[0151] The bus bar wing 215 and the bus bar body 211 may form a step difference. For example, the bus bar wing 215 may be arranged from the front end or the rear end of the bus bar body 211 toward the battery cell 100 (see FIG. 1 ). Fig.12 ) bends and extends, and can extend forward or backward.

[0152] For example, the front bus bar wing 216 may extend from the front end of the bus bar body 211 toward the battery cell 100 (see Fig.12 ) is bent and extended, and may extend forward. For example, the bus bar 210 may include a front end of the bus bar body 211 toward the battery cell 100 (refer to Fig.12 ) The bus bar link 219 is bent and extended. The front bus bar wing 216 may extend forward from the end of the bus bar link 219.

[0153] For example, the rear bus bar wing 217 may extend from the rear end of the bus bar body 211 toward the battery cell 100 (see Fig.12 ) is bent and extended, and may extend backward. For example, the bus bar 210 may include a rear end of the bus bar body 211 toward the battery cell 100 (refer to Fig.12 ) The bus bar connection portion 219 is bent and extended. The rear side bus bar wing 217 may extend rearward from the end of the bus bar connection portion 219.

[0154] The bus bar wing 215 may face the battery cell 100 (see Fig.12 ) of the cover assembly 112 (refer to Figure 5 For example, the inner side of the bus bar wing 215 may face the battery cell 100 (see Fig.12 ) of the cover assembly 112 (refer to Figure 5 ).

[0155] The bus bar wing 215 may be coupled to the battery cell 100 (see Fig.12 ) of the electrode lead 120 (refer to Figure 5 For example, the bus bar 210 may include a battery cell coupling hole 218 . The battery cell coupling hole 218 may be an opening portion or a hole formed in the bus bar wing 215 .

[0156] For example, when the bus bar 210 connects two battery cells 100 adjacent to each other in the front-to-back direction (see Fig.12 ), the front battery cell 100 (refer to Fig.12 ) of the electrode lead 120 (refer to Figure 5 ) can be coupled to the battery cell coupling hole 218 formed in the front side bus bar wing 216, and in the rear battery cell 100 (refer to Fig.12 ) of the electrode lead 120 (refer to Figure 5 ) may be coupled to the battery cell coupling hole 218 formed in the rear side bus bar wing 217 .

[0157] The battery cell coupling hole 218 may be elongated in the front-to-rear direction. Fig.12 ) of the electrode lead 120 (refer to Figure 5 ) may be inserted into the battery cell coupling hole 218. The battery cell coupling hole 218 may extend from the inner side of the bus bar wing 215 to the outer side of the bus bar wing 215.

[0158] The electrode lead 120 (see Figure 5 ) is formed with threads on the outer surface of the electrode lead 120 (refer to Figure 5 ) is inserted into the battery cell coupling hole 218, a nut (not shown) may be threadedly coupled to the electrode lead.

[0159] Battery cell 100 (see Fig.12 ) of the electrode lead 120 (refer to Figure 5 ) can move in the front-rear direction in the battery cell coupling hole 218. Therefore, even if the battery cell 100 (refer to Fig.12 ) changes in thickness in the front-to-back direction, the electrode lead 120 (see Figure 5 ) and the bus bar 210.

[0160] The bus bar 210 may form a periphery based on the inner side or the outer side of the bus bar 210. For example, an upper bus bar edge 210a may form a portion of the periphery of the bus bar 210 and may form an upper end of the bus bar 210. For example, a lower bus bar edge 210b may form a portion of the periphery of the bus bar 210 and may form a lower end of the bus bar 210.

[0161] For example, the front side bus bar edge 210c may form a portion of the perimeter of the bus bar 210 and may form a front end of the bus bar 210. The front side bus bar edge 210c may be formed on the front side bus bar wing 216.

[0162] For example, the rear bus bar edge 210d may form a portion of the perimeter of the bus bar 210 and may form the rear end of the bus bar 210. The rear bus bar edge 210d may be formed on the rear bus bar wing 217.

[0163] Fig.16 is a plan view of a support frame according to one embodiment of the present disclosure. Fig.16 In the figure, the outer side of the support frame 220 can be observed. The direction in which the outer side of the support frame 220 faces can be opposite to the direction in which the inner side of the support frame 220 faces. The inner side of the support frame 220 can face or be oriented toward the battery cell 100 (refer to Fig.12 ).

[0164] Reference Fig.16 The support frame 220 may include a frame body 221. The frame body 221 may be arranged along the plurality of battery cells 100 (refer to Fig.12 ) The frame body 221 may be elongated or extended in the stacking direction. For example, the frame body 221 may be elongated or extended in the front-to-back direction.

[0165] The frame body 221 may form a periphery based on the inner side or outer side of the frame body 221. For example, the upper frame body edge 221a may form a portion of the periphery of the frame body 221 and may form the upper end of the frame body 221. For example, the lower frame body edge 221b may form a portion of the periphery of the frame body 221 and may form the lower end of the frame body 221.

[0166] For example, the front frame body edge 221c may form a portion of the periphery of the frame body 221 and may form a front end of the frame body 221. For example, the rear frame body edge 221d may form a portion of the periphery of the frame body 221 and may form a rear end of the frame body 221.

[0167] The support frame 220 may include a frame wing 225. The frame wing 225 may extend from the frame body 221 or the frame wing 225 may be coupled to the frame body 211. The frame wing 225 may be integrally formed with the frame body 221.

[0168] For example, the frame wing 225 may extend upward from an upper frame body edge 221 a of the frame body 221. For example, the frame wing 225 may extend downward from a lower frame body edge 221 b of the frame body 221.

[0169] The support frame 220 may include a frame rib 226. The frame rib 226 may extend from the frame wing 225 or the frame rib 226 may be coupled to the frame wing 225. For example, the frame rib 226 may protrude from an outer side of the frame wing 225. The frame rib 226 may be formed integrally with the frame wing 225.

[0170] The frame rib 226 may be coupled to the bus bar 210 (see Fig.14 and Fig.15 ). For example, the frame rib 226 may be inserted into and coupled to the bus bar 210 (refer to Fig.14 and Fig.15 ) of the frame connection hole 212 (refer to Fig.14 and Fig.15 ).

[0171] Fig.17 It is shown Fig.13 FIG. 10A of Part B of FIG. 10B . Fig.18 It is shown Fig.17 A cross-section of the bus bar assembly shown is taken along C1 - C2 .

[0172] Reference Fig.17 and Fig.18 The frame wing 225 may be located between the front bus bar wing 216 and the rear bus bar wing 217. The frame wing 225 may be located between the bus bar body 211 and the battery cell 100 (see Fig.12 ). For example, the outer side of the frame wing 225 may face the bus bar body 211. A washer 242 may be provided between the frame wing 225 and the bus bar body 211. For example, the inner side of the frame wing 225 may face the battery cell 100 (refer to Fig.12 ).

[0173] The frame rib 226 may protrude from an outer side of the frame wing 225. The frame rib 226 may be a press-fit bolt coupled to the frame wing 225. The frame rib 226 may penetrate the bus bar body 211.

[0174] The frame rib 226 may be formed with a thread on its outer side. A nut (not shown) may be coupled to the frame rib 226. The wire unit 230 (see FIG. 2 ) may be provided with a thread. Fig.13 ) may be coupled between the bus bar body 211 and the nut (not shown). Fig.13 ) may be electrically connected to the bus bar body 211 .

[0175] Reference Figures 12 to 18 , the bus bar assembly 200 may be coupled to a plurality of battery cells 100 stacked in the front-rear direction. A process of replacing one battery cell 100 among the plurality of battery cells 100 stacked in the front-rear direction will be described below.

[0176] The bus bar assembly 200 may be separated from the plurality of battery cells 100. For example, the plurality of bus bars 210 may be separated from the plurality of battery cells 100. For example, the bus bars 210 may be separated from the plurality of battery cells 100. Figure 5 ) can be connected with the electrode lead 120 (refer to Figure 5 )Separation.

[0177] The battery unit 100 to be replaced among the plurality of battery units 100 may be removed from the rack assembly 300. A new battery unit 100 may be loaded into the rack assembly 300.

[0178] The bus bar assembly 200 may be coupled to a plurality of battery cells 100. For example, the electrode leads 120 (see Figure 5 ) may be inserted into the battery cell coupling hole 218. A nut (not shown) may be coupled to the electrode lead 120 (refer to Figure 5 ).

[0179] Fig.19 is a perspective view showing the overall form of a battery pack according to an embodiment of the present disclosure.

[0180] Reference Fig.19, a plurality of rack frames 310 may be provided. For example, a plurality of rack frames 310 may be provided along one direction. For example, a plurality of rack frames 310 may be provided along a rack layer plate 312 (refer to Figure 1 ) in the lateral direction or along the tray 320 (refer to Figure 2 )'s horizontal direction order settings.

[0181] A plurality of rack frames 310 may be arranged along a rack layer 312 (see Figure 1 ) in the lateral direction or along the tray 320 (refer to Figure 2 ) in the lateral direction.

[0182] The rack frame 310 may include a rack guide 313. The rack guide 313 may be formed on the rack scaffold 311 or coupled to the rack scaffold 311. For example, in the plurality of rack frames 310, the rack guide 313 may be provided along the rack layer 312 (see Figure 1 ) in the lateral direction or along the tray 320 (refer to Figure 2 ) extends or stretches in the transverse direction.

[0183] For example, the rack guide 313 may be a groove formed at the lower end of the rack scaffold 311. For another example, the rack guide 313 may be a rail coupled to the lower end of the rack scaffold 311 or a protrusion coupled to the lower end of the rack scaffold 311.

[0184] Fig. 20 is a diagram showing an energy storage house according to one embodiment of the present disclosure.

[0185] Fig.21 is a diagram illustrating an energy storage system according to one embodiment of the present disclosure.

[0186] Reference Fig. 20 and Fig.21 According to an embodiment of the present disclosure, the energy storage system 1 may include an energy storage housing 20 and a plurality of battery packs 10 (see Fig.19 ).

[0187] The energy storage housing 20 can accommodate the battery pack 10 (refer to Fig.19 For example, the energy storage housing 20 can accommodate multiple battery packs 10 (see Fig.19 ).

[0188] The energy storage housing 20 may include a housing bottom 21. The housing bottom 21 may form the bottom of the energy storage housing 20. The housing bottom 21 may be located at the battery pack 10 (see Fig.19 ) below.

[0189] The energy storage housing 20 may include a housing guide 22. The housing guide 22 may be formed at or coupled to the housing bottom 21. The housing guide 22 may extend or be elongated in a length direction.

[0190] For example, the length direction of the housing guide 22 may be parallel to the plurality of battery packs 10 (see Fig.19 For example, the length direction of the housing guide 22 may be parallel to the rack layer plate 312 (refer to Figure 1 ) in the lateral direction or the tray 320 (refer to Figure 2 ) in the horizontal direction.

[0191] The housing guide 22 may be coupled to the frame guide 313 (see Fig.19 The housing guide 22 can guide the battery pack 10 ( Fig.19 ) movement. Battery pack 10( Fig.19 ) can move along the housing guide 22.

[0192] The rack guide 313 and the housing guide 22 may cooperate with each other. For example, the housing guide 22 may include a rail, and the rack guide 313 (see Fig.19 ) may include a frame scaffold 311 (refer to Fig.19 ) on the lower surface. For example, the housing guide 22 may include a groove formed in the housing bottom 21, and the rack guide 313 (refer to Fig.19 ) may include tracks or protrusions.

[0193] Some embodiments or other embodiments of the present disclosure described above are not mutually exclusive or do not differ from each other. In some embodiments or other embodiments of the present disclosure described above, each configuration or function may be used or combined.

Claims

1. A rack assembly, comprising: A rack frame, including a rack scaffold and a rack deck coupled to the rack scaffold; as well as Pallets, bonded to the rack shelves, The frame layer plate extends in the front-to-back direction, The tray comprises: A tray body, facing the rack layer plate and located on the rack layer plate; as well as A tray wall extends upward from one side of the tray body, The one side of the tray body extends rearward from the front end of the tray body to the rear end of the tray body.

2. The rack assembly according to claim 1, wherein: The tray comprises: a tray bracket projecting upwardly from the tray body and adjacent to the tray wall; and a tray seat, protruding upward from the tray body and adjacent to the other side of the tray body, The other side of the tray body is located on an opposite side of the one side of the tray body.

3. The rack assembly according to claim 2, wherein: The tray further comprises: The tray stopper protrudes upward from the tray seat and is adjacent to the other side of the tray body.

4. The rack assembly according to claim 2, wherein: The tray further comprises: The tray contactor protrudes from the tray wall toward the tray seat.

5. A battery pack comprising: a rack assembly including a rack frame and a tray coupled to the rack frame; A plurality of battery cells are loaded onto the tray and stacked in a front-to-rear direction; as well as a bus bar assembly coupled to the plurality of battery cells, The rack frame comprises: Rack scaffolding; and Rack plywood, bonded to the rack scaffolding, The frame layer plate extends along the front-to-back direction, The tray comprises: A tray body, facing the rack layer plate and located on the rack layer plate; a pallet coupler extending from the pallet body and coupled to the frame deck; and A tray wall extends upward from one side of the tray body, The one side of the tray body extends rearward from the front end of the tray body to the rear end of the tray body.

6. The battery pack according to claim 5, wherein: The tray comprises: a plurality of tray brackets protruding upward from the tray body, adjacent to the tray wall, and supporting the plurality of battery cells; and a plurality of tray seats protruding upward from the tray body, adjacent to the other side of the tray body, and supporting the plurality of battery cells, The other side of the tray body is located on an opposite side of the one side of the tray body.

7. The battery pack according to claim 6, wherein: The tray main body is located below the plurality of battery cells and is spaced apart from the plurality of battery cells.

8. The battery pack according to claim 6, wherein: The tray further comprises: a tray stopper protruding upward from the tray seat and adjacent to the other side of the tray body, The plurality of battery cells are located between the tray wall and the tray stop.

9. The battery pack according to claim 6, wherein: The tray further comprises: A tray contactor protrudes from the tray wall toward the plurality of battery cells.

10. The battery pack according to claim 5, wherein: The tray further comprises: A plurality of tray partitions protrude upward from the tray body and are arranged in a front-to-rear direction to separate the plurality of battery cells in the front-to-rear direction.

11. The battery pack according to claim 10, wherein: Each of the plurality of tray partitions is located between corresponding two adjacent battery cells of the plurality of battery cells.

12. The battery pack according to claim 5, wherein: Each of the plurality of battery cells comprises: a battery cell body, including an electrode assembly; and an electrode lead protruding from an outer side surface of the battery cell body, The battery cell body is located between the electrode leads and the tray wall.

13. The battery pack according to claim 12, wherein: The bus bar assembly includes: a plurality of bus bars coupled to the electrode leads of the plurality of battery cells, Each of the plurality of bus bars is coupled to corresponding adjacent two battery cells of the plurality of battery cells.

14. The battery pack according to claim 13, wherein: The inner side surface of the bus bar faces the corresponding two adjacent battery cells and is recessed.

15. The battery pack according to claim 13, wherein: Each of the plurality of bus bars comprises: A front bus bar wing coupled to a front battery cell of the two corresponding adjacent battery cells; a rear bus bar wing coupled to the rear battery cell of the corresponding two adjacent battery cells; and The bus bar body extends rearward from the front bus bar wing to the rear bus bar wing.

16. The battery pack according to claim 15, wherein: The bus bar wing includes at least one of the front bus bar wing and the rear bus bar wing, The bus bar comprises: A battery cell connection hole is formed on the bus bar wing, The electrode lead is inserted into the battery cell coupling hole.

17. The battery pack according to claim 16, wherein: The battery cell coupling hole is elongated along the front-rear direction.

18. The battery pack according to claim 15, wherein: The electrode lead includes a first electrode lead and a second electrode lead which are spaced apart from each other in the up-down direction. The bus bar assembly further comprises: The support frame includes a frame body, the frame body crosses between the first electrode lead and the second electrode lead and extends in the front-rear direction.

19. The battery pack according to claim 18, wherein: The support frame comprises: a plurality of frame wings extending from the frame body; and a plurality of frame ribs, respectively protruding from the plurality of frame wings, Each of the plurality of frame wings is located between a corresponding bus bar of the plurality of bus bars and the plurality of battery cells, Each of the plurality of frame ribs is coupled to the bus bar body of the corresponding bus bar.

20. The battery pack according to claim 19, wherein: Each of the plurality of frame ribs penetrates the bus bar body of the corresponding bus bar.

Images