Battery case module assembly

Abstract

The battery case module assembly includes a first battery case module having a main body having a bottom plate, a front wall, a rear wall, and two side walls defining a space therein configured to receive a battery cell; a first abutment surface formed on a front surface of the front wall; a first protrusion extending forward from the front wall; a second abutment surface formed on a rear surface of the rear wall; and a second protrusion extending rearward from the rear wall.

Description

Technical Field

[0001] The present disclosure relates to the field of rechargeable energy storage systems and, more particularly, to battery casings. Background Art

[0002] The rechargeable energy storage system may include different types of rechargeable energy storage cells disposed in a housing.In a rechargeable energy storage system, it may be desirable to reduce complexity and size. Summary of the invention

[0003] In an exemplary embodiment, a battery housing module assembly includes a first battery housing module, which includes a main body having a bottom plate, a front wall, a rear wall and two lateral walls defining a space configured to receive a battery cell; a first adjacent surface formed on a front surface of the front wall; a first protrusion extending forward from the front wall; a second adjacent surface formed on a rear surface of the rear wall; and a second protrusion extending rearward from the rear wall.

[0004] In addition to one or more features described herein, the first abutment surface has a vertical height corresponding to the second protrusion, and the second abutment surface has a vertical height corresponding to the first protrusion.

[0005] In addition to one or more features described herein, the first abutment surface is disposed above the first protrusion and the second abutment surface is disposed below the second protrusion.

[0006] In addition to one or more of the features described herein, a bus bar trough extends between the front wall and the rear wall of the body to divide the space in the body into a first enclosure and a second enclosure.

[0007] In addition to one or more features described herein, the first housing and the second housing are configured to receive a battery cell therein.

[0008] In addition to one or more of the features described herein, a cooling passage is formed in the floor of the body.

[0009] In addition to one or more features described herein, a cooling channel cover is disposed below the floor of the main body to define an underside of the cooling channel.

[0010] In addition to one or more features described herein, the cooling channel is configured to have a cold cooling fluid line fluidly connected to an inlet thereof and a heated cooling fluid line fluidly connected to an outlet thereof.

[0011] In addition to one or more features described herein, the battery housing module assembly includes a second battery housing module, the second battery housing module including a body having a bottom plate, a front wall, a rear wall and two lateral walls defining a space therein, wherein the first battery housing module and the second battery housing module are attached.

[0012] In addition to one or more features described herein, the bottom plate of the first battery housing module is attached to the bottom plate of the second battery housing module such that the first battery housing module and the second battery housing module are attached in a vertical direction.

[0013] In addition to one or more features described herein, a cooling channel is formed in a bottom plate of a body of the first battery housing module, and a bottom plate of a body of the second battery housing module defines a lower side of the cooling channel.

[0014] In addition to one or more features described herein, the first battery housing module and the second battery housing module are interlocked in the longitudinal direction.

[0015] In addition to one or more features described herein, the second battery housing module includes a first adjacent surface and a first protrusion, wherein the first adjacent surface is formed on the front surface of the front wall and is adjacent to the second protrusion of the first battery housing module, and the first protrusion extends forward from the front wall and is adjacent to the second adjacent surface of the first battery housing module.

[0016] In addition to one or more of the features described herein, the battery housing module assembly further includes end caps disposed on lateral ends of the first battery housing module and the second battery housing module.

[0017] In addition to one or more features described herein, a cooling channel is formed on the bottom plate of the first battery housing module, a thermal interface material cavity is formed on the bottom plate of the body of the second battery housing module, and a thermal interface material is disposed in the thermal interface material cavity.

[0018] In addition to one or more features described herein, a cooling channel plate is disposed between the bottom plate of the body of the first battery housing module and the thermal interface material.

[0019] In addition to one or more features described herein, a compression limiter is formed on a periphery of the thermal interface material cavity.

[0020] In another exemplary embodiment, the battery housing module structure includes a main body having a front wall, a rear wall, two lateral walls and a central bottom plate, the central bottom plate defining an upper shell and a lower shell therein, the upper shell and the lower shell being configured to receive a battery cell, a first adjacent surface formed on the front surface of the front wall, a first protrusion extending forward from the front wall, a second adjacent surface formed on the rear surface of the rear wall, a second protrusion extending rearward from the rear wall, a third adjacent surface formed on the front surface of the front wall below the first protrusion, a third protrusion extending forward from the front wall below the third adjacent surface, a fourth protrusion extending rearward from the rear wall below the second adjacent surface, and a fourth adjacent surface formed on the rear surface of the rear wall below the fourth protrusion.

[0021] In addition to one or more of the features described herein, a cooling passage is formed in the center floor.

[0022] In another exemplary embodiment, the battery shell module assembly includes a first battery shell module, a second battery shell module, a third battery shell module and a fourth battery shell module, wherein each of the first battery shell module and the third battery shell module includes a main body having a bottom plate, a front wall, a rear wall and two lateral walls defining a space configured to receive a battery cell therein; a first adjacent surface formed on the front surface of the front wall; a first protrusion extending forward from the front wall; a second adjacent surface formed on the rear surface of the rear wall; and a second protrusion extending backward from the rear wall, wherein each of the second battery shell module and the fourth battery shell module includes a main body having a bottom plate, a front wall, a rear wall and two lateral walls defining a space configured to receive a battery cell therein; a first adjacent surface formed on the rear surface of the rear wall; a first protrusion extending backward from the rear wall; a second adjacent surface formed on the front surface of the front wall surface; and a second protrusion extending forward from the front wall, wherein the bottom plate of the first battery shell module is attached to the bottom plate of the second battery shell module so that the first battery shell module and the second battery shell module are attached in the vertical direction, wherein the bottom plate of the third battery shell module is attached to the bottom plate of the fourth battery shell module so that the third battery shell module and the fourth battery shell module are attached in the vertical direction, wherein the first adjacent surface of the third battery shell module is adjacent to the second protrusion of the first battery shell module, wherein the first protrusion of the third battery shell module is adjacent to the second adjacent surface of the first battery shell module, wherein the second adjacent surface of the fourth battery shell module is adjacent to the first protrusion of the third battery shell module, wherein the second protrusion of the fourth battery shell module is adjacent to the first adjacent surface of the third battery shell module, and wherein the first cooling channel is formed in the bottom plate of the first battery shell module, and the second cooling channel is formed in the bottom plate of the third battery shell module.

[0023] The above features and advantages and other features and advantages of the present disclosure are apparent from the following detailed description when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, advantages and details appear, by way of example only, in the following detailed description, which refers to the accompanying drawings, in which:

[0025] Figure 1 is a left side view of a vehicle including a battery pack having a battery housing module assembly according to a non-limiting example;

[0026] Figure 2 is a top front perspective view of a battery housing module according to a non-limiting example;

[0027] Figure 3 is a top rear perspective view of battery housing modules stacked in a vertical direction according to a non-limiting example;

[0028] Figure 4 is a top front perspective view of battery housing modules stacked in a longitudinal direction according to a non-limiting example;

[0029] Figure 5 yes Figure 4 A side view of a battery housing module;

[0030] Figure 6 According to a non-limiting example, a battery cell is provided therein. Figure 4 A top front perspective view of a battery housing module;

[0031] Figure 7 is a non-limiting example having an end cap disposed thereon Figure 4 A top front perspective view of a battery housing module;

[0032] Figure 8 is a non-limiting example having an end cap disposed thereon Figure 4 A front view of a battery housing module;

[0033] Fig. 9 According to a non-limiting example, a cooling fluid line is provided thereon. Figure 6 A top front perspective view of a battery housing module;

[0034] Fig.10 is a bottom front perspective view of a battery housing module having a cooling fluid channel formed thereon according to a non-limiting example;

[0035] Fig.11 is vertically inverted according to a non-limiting example Fig.10 A perspective view of a battery housing module;

[0036] Fig.12is a top view of battery housing modules stacked in a vertical direction and having cooling fluid channels formed thereon according to a non-limiting example;

[0037] Fig.13 is taken along XIII-XIII according to a non-limiting example Fig.12 A cross-sectional view of a battery housing module; and

[0038] Fig.14 is a top perspective view of a battery housing module structure according to a non-limiting example, the battery housing module structure being formed of vertically stacked battery housing modules that are integrally formed into a unitary structure with side portions removed. DETAILED DESCRIPTION

[0039] The following description is merely exemplary in nature and is not intended to limit the present disclosure, its application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate the same or corresponding parts and features.

[0040] Figure 1 1 shows a vehicle 10 according to a non-limiting example. The vehicle 10 includes a body 12 supported on a plurality of wheels 16. One or more of the plurality of wheels 16 are steerable. The body 12 partially defines a passenger compartment 20 having a seat 23 positioned behind an instrument panel 26. A steering controller 30 is disposed between the seat 23 and the instrument panel 26. The steering controller 30 is operated to control the orientation of the steerable wheels 16.

[0041] The vehicle 10 includes an electric motor 34 connected to a transmission 36 that provides power to one or more of the plurality of wheels 16. A rechargeable energy storage system 38 is disposed in the vehicle body 12 and provides power to the electric motor 34. Figure 1 Specific locations of the electric motor 34, the transmission 36, and the rechargeable energy storage system 38 are shown in FIG. 1 , but these locations are exemplary and non-limiting, and the locations of these structures may vary. According to one or more embodiments, the rechargeable energy storage system 38 includes a modular battery housing that includes Figure 2-14 The battery housing module 100 shown in FIG.

[0042] Figure 2A battery housing module 100 according to one or more embodiments is shown. The battery housing module 100 may include a body 110 having a bottom plate 101, a front wall 102, a rear wall 103, and lateral walls 104, 105 defining a space therein. The busbar groove 120 extends between the front wall 102 and the rear wall 103, and divides the space defined by the body 110 into a first shell 111 and a second shell 112. The front wall 102 of the body 110 includes a first abutment surface 113 at its top and a first protrusion 130 extending forward from its bottom. The rear wall 103 of the body 110 includes a second abutment surface 114 at its bottom and a second protrusion 140 extending backward from its top. The bottom plate 101 of the body 110 includes a bottom surface 150. According to one or more embodiments, the battery housing module 100 is formed as an integral structure. According to one or more embodiments, the battery housing module 100 may be formed as an integral structure of cast aluminum. According to one or more embodiments, the battery housing module 100 may be formed of a composite material. According to one or more embodiments, the battery housing module 100 may be formed as an integral structure of a molded composite material.

[0043] The first housing 111 and the second housing 112 may be configured to receive a battery cell therein. For example, the first housing 111 and the second housing 112 may receive a soft pack battery cell, a prismatic battery cell, a cylindrical battery cell, or other battery cells known in the art. The battery cell may be tabbed or tabless. In addition, although Figure 2 The bus bar groove 120 that divides the space defined by the body 110 into the first outer shell 111 and the second outer shell 112 is shown, but the battery housing module 100 may alternatively include a single large outer shell within the body 110. Although not shown, a cover may be provided on top of the battery housing module 100 to close the first outer shell 111 and the second outer shell 112 or the single large outer shell.

[0044] Figure 3 An upper battery housing module 100U and a lower battery housing module 100L stacked in a vertical direction are illustrated according to one or more embodiments.

[0045] The upper battery housing module 100U may include a main body 110U having a bottom plate 101U, a front wall 102U, a rear wall 103U, and lateral walls 104U, 105U defining a space therein. The busbar groove 120U extends between the front wall 102U and the rear wall 103U, and divides the space defined by the main body 110U into a first shell 111U and a second shell 112U. The front wall 102U of the main body 110U includes a first abutting surface 113U at its top and a first protrusion 130U extending forward from its bottom. The rear wall 103U of the main body 110U includes a second abutting surface 114U at its bottom and a second protrusion 140U extending backward from its top. The bottom plate 101U of the main body 110U includes a bottom surface 150U. According to one or more embodiments, the upper battery housing module 100U is formed as an integral structure. According to one or more embodiments, the upper battery housing module 100U is formed as an integral structure of cast aluminum. According to one or more embodiments, the upper battery housing module 100U may be formed of a composite material. According to one or more embodiments, the upper battery housing module 100U may be formed as an integral structure of a molded composite material.

[0046] The first housing 111U and the second housing 112U of the upper battery housing module 100U may be configured to receive battery cells therein. For example, the first housing 111U and the second housing 112U may receive soft pack battery cells, prismatic battery cells, cylindrical battery cells, or other battery cells known in the art. The battery cells may be tabbed or tabless. In addition, although Figure 3 A bus bar slot 120U is shown dividing the space defined by the main body 110U into a first housing 111U and a second housing 112U, but the upper battery housing module 100U may alternatively include a single large housing within the main body 110U. Although not shown, a cover may be provided on top of the upper battery housing module 100U to enclose the first housing 111U and the second housing 112U or the single large housing.

[0047] The lower battery housing module 100L may be similar in structure to the upper battery housing module 100U, but vertically inverted. The lower housing module 100L may include a main body 110L. Although the internal structure of the main body 110L is Figure 3 Although not visible in the figure, the structure of the main body 110L of the lower battery housing module 100L is similar to the main body 110U of the upper battery housing module 100U. That is, the main body 110L also includes a bottom plate 101L, a front wall 102L, a rear wall 103L, and lateral walls 104L, 105L defining a space therein, and a bus bar groove extending between the front wall 102L and the rear wall 103L and dividing the space defined by the main body 110L into a first shell and a second shell. When the lower battery housing module 100L is vertically inverted, the vertical direction and the longitudinal direction are also inverted.

[0048] The rear wall 103L of the main body 110L includes a first abutting surface 113L at its bottom and a first protrusion 130L extending backward from its top. The front wall 102L of the main body 110L includes a second abutting surface 114L at its top and a second protrusion 140L extending forward from its bottom. The bottom plate 101L of the main body 110L includes a top surface 150L. According to one or more embodiments, the lower battery housing module 100L is formed as an integral structure. According to one or more embodiments, the lower battery housing module 100L is formed as an integral structure of cast aluminum. According to one or more embodiments, the lower battery housing module 100L may be formed of a composite material. According to one or more embodiments, the lower battery housing module 100L may be formed as an integral structure of a molded composite material.

[0049] The first and second housings (not shown) of the lower battery housing module 100L may be configured to receive battery cells therein. For example, the first and second housings may receive soft pack battery cells, prismatic battery cells, cylindrical battery cells, or other battery cells known in the art. The battery cells may be tabbed or tabless. In addition, the lower battery housing module 100L may include a single large housing within the body 110L. Although not shown, a cover may be provided below the lower battery housing module 100L to enclose the first and second housings or the single large housing.

[0050] like Figure 3 As shown, the upper battery housing module 100U can be attached to the lower battery housing module 100L, wherein the bottom surface 150U abuts the top surface 150L. According to one or more embodiments, the upper battery housing module 100U can be bolted to the lower battery housing module 100L. According to one or more embodiments, the upper battery housing module 100U can be welded to the lower battery housing module 100L. The upper battery housing module 100U can be attached to the lower battery housing module 100L by other attachment mechanisms known in the art. According to one or more embodiments, the upper battery housing module 100U and the lower battery housing module 100L can be formed as an integral structure rather than two separate structures attached to each other.

[0051] Figures 4 to 6 1 shows battery housing modules 100 stacked in a longitudinal direction according to one or more embodiments. Each of the battery housing modules 100 may be similar to Figure 2The battery shell modules shown in and described above. According to one or more embodiments, the first protrusion 130 may have a height similar to or the same as the second abutting surface 114, and the second protrusion 140 may have a height similar to or the same as the first abutting surface 113. Multiple battery shell modules 100 may be stacked in the longitudinal direction, so that the first protrusion 130 of the battery shell module 100 may abut the second abutting surface 114 of an adjacent battery shell module in the forward direction, and the second protrusion 140 of the battery shell module 100 may abut the first abutting surface 113 of an adjacent battery shell module 100 in the rearward direction. Thus, a plurality of battery shell modules 100 may be interlocked together in the longitudinal direction. In addition to interlocking, the battery shell modules 100 may be attached together by, for example, bolting them together, welding them together, or other attachment mechanisms known in the art. Although Figures 4 to 6 Four battery housing modules 100 are shown interlocked together, but there may be any number of interlocked battery housing modules 100 .

[0052] According to one or more embodiments, Figure 3 The plurality of vertically stacked upper battery housing modules 100U and lower battery housing modules 100L shown may be interlocked and / or attached together in a manner similar to that described above. Figure 6 As shown, a battery cell stack 300 including a plurality of battery cells 301 may be received in a first housing 111 and a second housing 112 of each battery housing module 100. According to one or more embodiments, although not shown, a cover may be provided on each of the battery housing modules 100 to close the first housing 111 and the second housing 112. According to one or more embodiments, one cover may be provided on a plurality of interlocked battery housing modules 100.

[0053] Figures 7 and 8 Shows Figure 4 A battery housing module 100, wherein end caps 160 are disposed on lateral ends of the battery housing module 100. The end caps 160 may surround the opposite lateral ends of the body 110 of each battery housing module 100 to help keep the battery housing modules 100 interlocked. The end caps 160 may help protect the lateral ends of the battery housing module 100. The end caps 160 may provide additional strength and / or rigidity to the battery housing module 100. According to one or more embodiments, the end caps 160 may be formed of the same material as the battery housing module 100. According to one or more embodiments, the end caps 160 may be formed of aluminum. According to one or more embodiments, the end caps 160 may be formed of a different material than the battery housing module. According to one or more embodiments, the end caps 160 may be formed of an elastic material. According to one or more embodiments, the end caps 160 may be formed of rubber or plastic. The end caps 160 may be closed on the longitudinal ends 161, such as Figure 7 As shown, or open at the longitudinal end, such as Figure 8 shown.

[0054] Fig. 9 Shows Figure 6 A battery housing module 100 schematically illustrates a cooling fluid line 170 fluidly connected to the battery housing module 100, and Figure 10-11 The cooling channel 175 formed on the bottom surface 150 of the bottom plate 101 of the body 110 of the battery housing module 100 is shown. According to one or more embodiments, the cooling channel 175 may be a flow path formed in the bottom surface 150. The cooling channel 175 may be formed on each battery housing module 100. Fig.11 As shown, the cooling channel 175 may be defined on one longitudinal end by an adjacent battery housing module 100. As a non-limiting example, a front end 174 of the cooling channel 175 may be defined within the battery housing module 100, and a rear end 176 of the cooling channel 175 may be defined by a bottom end of the first protrusion 130 of the adjacent battery housing module 100. According to one or more embodiments, as Fig.10 As shown, the cooling channel cover 177 may be provided below the bottom surface 150 to define the lower side of the cooling channel 175. According to one or more embodiments, instead of the cooling channel cover 177, the vertically inverted battery housing module 100 may define the lower side of the cooling channel 175.

[0055] The cooling fluid lines 170 include a cold cooling fluid line 171 and a heated cooling fluid line 173. The cold cooling fluid line 171 is fluidly connected to the inlet of the cooling channel 175 on the bottom surface 150 of the bottom plate 101 of the main body 110 of each battery housing module 100, and the heated cooling fluid line 173 is fluidly connected to the outlet of the cooling channel 175 on the bottom surface 150 of the bottom plate 101 of the main body 110 of each battery housing module 100. When the battery cells 301 dissipate heat during use, the cold cooling fluid flows into the inlet of the cooling channel 175 of each battery housing module 100 through the cold cooling fluid line 171 and cools the bottom plate 101 of the main body 110, which in turn cools the rest of the battery housing module 100 by conduction. The cooling fluid heated by the heat emitted by the battery cells 301 flows out from the outlet of the cooling channel 175 to the heated cooling fluid line 173 to be cooled, for example, by a heat exchanger, and circulates back to the cold cooling fluid line 171 .

[0056] Fig.12 A top view of an upper battery housing module 100U vertically stacked above a lower battery housing module 100L is shown, and Fig.13 Shown in Fig.12 A cross-sectional view of the upper battery housing module 100U and the lower battery housing module 100L taken at 13-13 in FIG. Figure 3As in the embodiment shown, the bottom surface 150U of the bottom plate 101U of the main body 110U of the upper battery housing module 100U is attached to the top surface 150L of the bottom plate 101L of the main body 110L of the lower battery housing module 100L. According to one or more embodiments, the main body 110U of the upper battery housing module 100U may also have a cooling plate 152U disposed on its bottom plate 101U. The bottom surface 150U may also have a cooling channel 175 formed therein. According to one or more embodiments, the cooling channel 175 may be similar to Figure 10-11 A cooling channel cover 177 may be provided below the bottom surface 150U to define the lower side of the cooling channel 175. Fig.13 The cooling channel cover 177 is shown separated from the upper battery housing module 100U and the lower battery housing module 100L, but according to one or more embodiments, the cooling channel cover 177 can be formed as part of the upper battery housing module 100U or the lower battery housing module 100L. The top surface 150L of the bottom plate 101L of the body 110L of the lower battery housing module 100L may include a thermal interface material cavity 178L, which can receive a thermal interface material 179 that helps conduct heat. According to one or more embodiments, the thermal interface material 179 can also be used as an adhesive. Compression limiters 151L can be formed on the lateral sides of the thermal interface material cavity 178L, which provide structural integrity so as to limit or prevent compression of the thermal interface material 179.

[0057] According to one or more embodiments, the peripheries of the upper battery housing module 100U and the lower battery housing module 100L may be welded together. According to one or more embodiments, the thermal interface material may be omitted.

[0058] Fig.14 A battery housing module structure 200 is shown formed of vertically stacked battery housing modules according to one or more embodiments, the battery housing modules being integrally formed into a unitary structure. One lateral end of the battery housing module structure 200 has been removed to show its internal components. Fig.14 Only one battery housing module structure 200 is shown in FIG. 1 , but multiple battery housing module structures 200 may be similar to Figure 4 The battery housing modules 100 shown in FIG. 1 are interlocked in the longitudinal direction.

[0059] The battery housing module structure 200 may include a body 210 having a front wall 202, a rear wall 203, and lateral walls 204 defining a space therein, and a central bottom plate 250 disposed at or near the vertical center of the battery housing module structure 200. One of the lateral walls is Fig.14221 and 223. The center bottom plate 250 may separate the space defined by the front wall 202, the rear wall 203 and the lateral wall 204 of the body 210 into an upper housing 221 and a lower housing 223.

[0060] The front wall 202 of the body 210 includes a first abutment surface 213 located at the top thereof, a first protrusion 230 located below the first abutment surface 213 and extending forward, a third abutment surface 215 located below the first protrusion 230, and a third protrusion 231 located below the third abutment surface 215 and extending forward. According to one or more embodiments, the first abutment surface 213 and the third abutment surface 215 have different heights in the vertical direction, and the first protrusion 230 and the third protrusion 231 have different heights in the vertical direction. The rear wall 203 of the body 210 includes a second protrusion 240 located at the top thereof and extending backward, a second abutment surface 214 below the second protrusion 240, a fourth protrusion 241 below the second abutment surface 214 and extending backward, and a fourth abutment surface 216 below the fourth protrusion 241. When multiple battery shell module structures 200 are interlocked in the longitudinal direction, the first protrusion 230 of the battery shell module structure 200 can be adjacent to the second adjacent surface 214 of the adjacent battery shell module structure 200, the second protrusion 240 of the battery shell module structure 200 can be adjacent to the first adjacent surface 213 of the adjacent battery shell module structure 200, the third protrusion 231 of the battery shell module structure 200 can be adjacent to the fourth adjacent surface 216 of the adjacent battery shell module structure 200, and the fourth protrusion 241 of the battery shell module structure 200 can be adjacent to the third adjacent surface 215 of the adjacent battery shell module structure 200.

[0061] According to one or more embodiments, the first abutment surface 213 and the third abutment surface 215 may include a plurality of keying structures 232, 234, and the first protrusion 230 and the third protrusion 231 may include a plurality of keying structures 233, 235. Fig.14The bonding structures 232 and 234 of the first abutting surface 213 and the third abutting surface 215 are shown to be protrusions, and the bonding structures 233 and 235 of the first protrusion 230 and the third protrusion 231 are recesses, but the bonding structures 222, 233, 234, and 235 are not limited thereto. Although not shown, according to one or more embodiments, the second abutting surface 214 and the fourth abutting surface 216 may include a plurality of bonding structures configured to engage with the bonding structures 233 and 235 of the first protrusion 230 and the third protrusion 231 of the adjacent battery housing module structure 200, and the second protrusion 240 and the fourth protrusion 241 may include a plurality of bonding structures configured to engage with the bonding structures 232 and 234 of the first abutting surface 213 and the third abutting surface 215 of the adjacent battery housing module structure 200.

[0062] The upper housing 221 and the lower housing 223 may be configured to receive the battery cells therein. A top cover plate 280 may be provided at the top end of the main body 210 to close the upper housing 221, and a bottom cover plate 281 may be provided at the bottom end of the main body 210 to close the lower housing 223. A bus bar groove 220 may be formed on the top cover plate 280 to divide the upper housing 221 into a first upper housing and a second upper housing, and a bus bar groove 220 may be formed on the bottom cover plate 281 to divide the lower housing 223 into a first lower housing and a second lower housing. According to one or more embodiments, the bus bar groove may be alternatively formed on the main body 210, similar to Figure 2 The bus bar slot 120 is shown. The first upper housing, the second upper housing, the first lower housing, and the second lower housing may be configured to receive a battery cell therein.

[0063] The front top edge of the body 210 and / or the top cover plate 280 may include a bonding structure 290, and the rear top edge of the body 210 and / or the top cover plate 280 include a bonding structure 291. The bonding structure 290 of the battery housing module structure 200 is configured to engage with the bonding structure 291 of the adjacent battery housing module structure 200.

[0064] The bottom top edge of the body 210 and / or the bottom cover plate 281 may include a bonding structure 292, and the rear bottom edge of the body 210 and / or the bottom cover plate 281 may include a bonding structure 293. The bonding structure 292 of the battery housing module structure 200 is configured to engage with the bonding structure 293 of the adjacent battery housing module structure 200.

[0065] According to one or more embodiments, a cooling channel 275 may be formed in the center base plate 250. The structure and function of the cooling channel 275 may be similar to Figure 10-11 A cooling channel cover 277 may be disposed over the center base plate 250 to define a top side of the cooling channel 275 .

[0066] According to one or more embodiments, the body 210 is formed as a unitary structure. According to one or more embodiments, the body 210 is formed as a unitary structure of cast aluminum. According to one or more embodiments, the body 210 may be formed of a composite material. According to one or more embodiments, the body 210 may be formed as a unitary structure of a molded composite material.

[0067] According to one or more embodiments, an assembly including a battery housing module 100, an upper battery housing module 100U, a lower battery housing module 100L, and a battery housing module structure 200 may be referred to as a battery housing module assembly. According to one or more embodiments, the battery housing module 100, the upper battery housing module 100U, the lower battery housing module 100L, and the battery housing module structure 200 as described above may reduce complexity, may reduce tolerance stacking, may reduce overall stacking height, and / or may produce a compact and versatile assembly that is compatible with venting solutions and / or low-profile packaging envelopes.

[0068] The terms "a" and "an" do not indicate a limitation of quantity, but rather indicate the presence of at least one of the referenced item. Unless the context clearly indicates otherwise, the term "or" means "and / or". References to "aspects" throughout the specification mean that a particular element (e.g., a feature, structure, step, or characteristic) described in conjunction with that aspect is included in at least one aspect described herein, and may or may not be present in other aspects. In addition, it should be understood that the described elements may be combined in any suitable manner in the various aspects.

[0069] When an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present.

[0070] Unless stated to the contrary herein, all test standards are the most current standards in effect as of the filing date of this application or, if priority is claimed, the filing date of the earliest priority application in which the test standards appear.

[0071] Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0072] Although the above disclosure has been described with reference to exemplary embodiments, it will be appreciated by those skilled in the art that various changes may be made and equivalents may be substituted for its elements without departing from its scope. In addition, many modifications may be made to adapt specific circumstances or materials to the teachings of the disclosure without departing from the basic scope of the disclosure. Therefore, it is intended that the disclosure is not limited to the specific embodiments disclosed, but will include all embodiments falling within its scope.

Claims

1. A battery housing module assembly, comprising: A first battery housing module, the first battery housing module comprising: a body having a floor, a front wall, a rear wall, and two lateral walls defining therein a space configured to receive a battery cell; a first abutment surface formed on a front surface of the front wall; a first protrusion extending forward from the front wall; a second abutment surface formed on a rear surface of the rear wall; and A second protrusion extends rearwardly from the rear wall. 2 . The battery housing module assembly according to claim 1 , wherein the first abutting surface has a vertical height corresponding to the second protrusion, and the second abutting surface has a vertical height corresponding to the first protrusion. 3 . The battery housing module assembly according to claim 1 , wherein the first abutment surface is disposed above the first protrusion, and the second abutment surface is disposed below the second protrusion. The battery housing module assembly according to claim 1 , wherein a cooling channel is formed in a bottom plate of the body. 5 . The battery housing module assembly according to claim 4 , wherein a cooling channel cover is provided below a bottom plate of the body to define a lower side of the cooling channel.

6. The battery housing module assembly according to claim 1, further comprising: a second battery housing module, the second battery housing module comprising a body having a bottom plate, a front wall, a rear wall and two lateral walls defining a space therein, Wherein the first battery housing module and the second battery housing module are attached. 7 . The battery housing module assembly according to claim 6 , wherein a bottom plate of the first battery housing module is attached to a bottom plate of the second battery housing module such that the first battery housing module and the second battery housing module are attached in a vertical direction. 8 . The battery housing module assembly according to claim 7 , wherein a cooling channel is formed in a bottom plate of a main body of the first battery housing module, and a bottom plate of a main body of the second battery housing module defines a lower side of the cooling channel. 9 . The battery housing module assembly according to claim 6 , wherein the first battery housing module and the second battery housing module are interlocked in a longitudinal direction.

10. The battery housing module assembly according to claim 9, The second battery housing module comprises: a first abutting surface formed on the front surface of the front wall and abutting against the second protrusion of the first battery housing module, and A first protrusion extends forward from the front wall and abuts against the second abutting surface of the first battery housing module.

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