Energy storage device and vehicle

Abstract

An energy storage device (10) comprises: a first energy storage module (14); a second energy storage module (15) arranged above the first energy storage module (14); a receiving housing (20) that receives the first energy storage module (14) and the second energy storage module (15); and a support member (30) arranged between the first energy storage module (14) and the second energy storage module (15) in a height direction, wherein a bottom side of the second energy storage module (15) is fixed to one side of the upper surface of the support member (30), an upper side of the first energy storage module (14) is fixed to one side of the lower surface of the support member (30), and the support member (30) is fixed to the receiving housing (20).

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This non-provisional application is based on Japanese Patent Application No. 2024-014053 filed with the Japan Patent Office on February 1, 2024, the entire contents of which are hereby incorporated by reference. BACKGROUND field

[0002] The present disclosure relates to an energy storage device and a vehicle. Description of the state of the art

[0003] As a conventional energy storage device, Japanese Patent Laid-Open No. 2020-061380, JP 2020-061 380 B, discloses a configuration in which battery modules (energy storage modules) are each arranged in an upper case, an intermediate case, and a lower case, and these cases are stacked in multiple stages in a height direction or an up-and-down direction. SUMMARY

[0004] However, in the configuration disclosed in Japanese Patent Publication JP 2020-061380 B, multiple cases are manufactured, the energy storage modules are placed in each case, and the cases are fixed to each other, which requires labor and cost during manufacturing. To eliminate such complications, it is conceivable to stack the plurality of energy storage modules in multiple stages in the height direction and accommodate the plurality of energy storage modules in a housing case. However, this requires a large-sized housing case. Therefore, if no measures are taken, there is a risk that the housing case will be deformed.

[0005] The present disclosure has been made in view of the above-described problem, and an object of the present disclosure is to provide an energy storage device in which the rigidity of an accommodating case accommodating a plurality of energy storage modules arranged in a height direction can be increased, and a vehicle incorporating the energy storage device.

[0006] An energy storage device according to the present disclosure includes: a first energy storage module, a second energy storage module arranged above the first energy storage module; a receiving case that accommodates the first energy storage module and the second energy storage module; and a support member arranged between the first energy storage module and the second energy storage module in a height direction. A bottom side of the second energy storage module is fixed to one side of an upper surface of the support member. An upper side of the first energy storage module is fixed to one side of a lower surface of the support member. The support member is fixed to the receiving case.

[0007] According to the configuration described above, the support member to which the first energy storage module and the second energy storage module arranged in the height direction are fixed is fixed to the receiving case, whereby the rigidity of the receiving case can be increased.

[0008] In the energy storage device according to the present disclosure, the support member may include a fixed portion fixed to the receiving housing. The receiving housing may include an upper housing. In this case, the fixed portion may be fixed to the upper housing.

[0009] According to the configuration described above, the fixed section is fixed to the upper case, which can increase the rigidity of the upper case.

[0010] In the energy storage device according to the present disclosure, the upper case may have, in a longitudinal direction or a front-to-rear direction orthogonal to the height direction, a first wall portion facing the second energy storage module from a front side and a second wall portion facing the second energy storage module from a rear side. The support member may be attached to both the first wall portion and the second wall portion.

[0011] According to the configuration described above, the support member is fixed to the first wall portion and the second wall portion of the upper case at two locations on the front side and on the rear side, whereby the rigidity of the upper case can be further increased.

[0012] In the energy storage device according to the present disclosure, each of the first energy storage module and the second energy storage module may have a front end portion and a rear end portion in a longitudinal direction perpendicular to the height direction. The rear end portion of the second energy storage module may be arranged on a front side of the rear end portion of the first energy storage module.

[0013] According to the above-described configuration, an upward slope can be formed at a rear wall portion of the upper case facing the rear end portion of the first energy storage module and the rear end portion of the second energy storage module during molding of the upper case by means of a molding angle or the like. In such a case, by attaching the second energy storage module to the support member such that the rear end portion of the second energy storage module is located on the front side relative to the rear end portion of the first energy storage module, a smaller gap can be achieved between the rear wall portion of the upper case and a lowermost energy storage stack of a plurality of energy storage stacks constituting the first energy storage module.This allows a reduction in dead space in the housing and the large number of energy storage stacks can be arranged in high density in the housing.

[0014] A vehicle according to the present disclosure includes: the energy storage device described above; a vehicle frame member; and a coupling member that couples the receiving case and the vehicle frame member to each other. The coupling member is fixed to a portion where the support member is fixed to the receiving case.

[0015] According to the configuration described above, the portion to which the support member to which the first energy storage module and the second energy storage module arranged in the height direction are attached is fixed to the receiving case is coupled to the vehicle frame member, whereby the rigidity of the receiving case and the rigidity of the vehicle frame member can be increased.

[0016] The foregoing and other objects, features, aspects, and advantages of the present disclosure will become more apparent from the following detailed description of the present disclosure when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE CHARACTERS Fig. 1 is a schematic view of a vehicle according to a first embodiment. Fig. 2 is a schematic view of an energy storage device according to the first embodiment. Fig. 3 is a perspective view of a support member according to the first embodiment. Fig. 4 is a cross-sectional view showing a state in which the support member according to the first embodiment is attached to a receiving case. Fig. 5 is a plan view showing a state in which the energy storage device according to the first embodiment is attached to a frame member of the vehicle. Fig. 6 is an enlarged perspective view showing a state in which the energy storage device according to the first embodiment is fixed to the frame part by a coupling member. Fig. 7 is a cross-sectional view showing a state in which a support member is attached to a receiving case according to a second embodiment. Fig. 8 is a schematic view of an energy storage device according to a third embodiment. DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Embodiments of the present disclosure will be described in detail below with reference to the figures. In the embodiments described below, the same or common components in the figures are denoted by the same reference numerals, and their descriptions will not be repeated. (First embodiment)

[0018] Fig. Fig. 1 is a schematic view of a vehicle according to a first embodiment. A vehicle 1 according to the first embodiment will be described with reference to Fig. 1 described.

[0019] The vehicle 1 according to the first embodiment is a hybrid vehicle that can run with the driving power of at least one motor or electric motor and an internal combustion engine, or an electrically powered vehicle that runs with the driving power obtained from electrical energy.

[0020] As in Fig. As shown in Figure 1, the vehicle 1 includes a front seat 2, a rear seat 3, a floor panel 4, and an energy storage device 10. The energy storage device 10 is constructed by electrically connecting a plurality of energy storage modules described below in series. Thus, the energy storage device 10 can supply a high-power electric motor. The entire energy storage device 10 can be arranged below the floor panel 4.

[0021] Fig. Figure 2 is a schematic view of the energy storage device according to the first embodiment. Details of the energy storage device 10 will be described with reference to Fig. 2 described.

[0022] The energy storage device 10 is arranged between spaced-apart electric drive mechanisms 80 in a longitudinal direction of the vehicle 1. Each of the electric drive mechanisms 80 is, for example, an e-axle that can directly supply electrical energy to an axle of a vehicle.

[0023] The energy storage device 10 includes a plurality of energy storage modules, a receiving case 20, a support member 30, and a plurality of electronic devices 71, 72, and 73. Each of the electronic devices 71, 72, and 73 is, for example, a control device such as a junction box, a battery ECU, or a battery management system (BMS).

[0024] The plurality of energy storage modules includes a front module 11, a middle module 12, and a rear module 13. Front module 11, middle module 12, and rear module 13 are arranged in this order from the front to the rear of the vehicle.

[0025] The front module 11 is configured, for example, by arranging energy storage stacks side by side in the longitudinal direction, extending in the width direction of the vehicle. Electronic devices 71 and 72 are arranged above the front module 11.

[0026] The mid-side module 12 is located between the front-side module 11 and the rear-side module 13. The mid-side module 12 is configured by stacking energy storage stacks extending in the longitudinal direction in a height direction and arranging the stacked energy storage stacks side by side in the longitudinal direction. Specifically, two energy storage stacks are arranged side by side in the longitudinal direction, and another energy storage stack is stacked on top of each of these energy storage stacks.

[0027] The rear module 13 comprises a first energy storage module 14 and a second energy storage module 15. The first energy storage module 14 and the second energy storage module 15 are arranged side by side in the vertical direction. The first energy storage module 14 and the second energy storage module 15 are each configured in a matrix by arranging energy storage stacks that extend in the width direction of the vehicle 1.

[0028] Each of the above-described energy storage stacks included in the front module 11, middle module 12, and rear module 13 is configured by arranging a plurality of energy storage cells 18 in a predetermined direction. Each of the energy storage cells 18 is, for example, a secondary battery such as a nickel-metal hydride battery or a lithium-ion battery. Each of the energy storage cells 18 may have a rectangular shape. Each of the energy storage cells 18 may be a liquid electrolyte energy storage cell or a solid electrolyte energy storage cell. Alternatively, each of the energy storage cells 18 may be a chargeable and dischargeable capacitor.

[0029] The second energy storage module 15 is arranged above the first energy storage module 14. A height of the second energy storage module 15 is, for example, higher than that of the first energy storage module 14. A length of the second energy storage module 15 in the longitudinal direction is shorter than that of the first energy storage module 14.

[0030] The first energy storage module 14 has a front end portion 14a and a rear end portion 14b in the longitudinal direction. The second energy storage module 15 has a front end portion 15a and a rear end portion 15b in the longitudinal direction.

[0031] The rear end portion 15b of the second energy storage module 15 is located further forward than the rear end portion 14b of the first energy storage module 14. The front end portion 15a of the second energy storage module 15 is located further rearward than the front end portion 14a of the first energy storage module 14. The electronic device 73 is arranged on the lower front side of the second energy storage module 15.

[0032] The receiving housing 20 accommodates the plurality of energy storage modules (front module 11, middle module 12 and rear module 13), the carrier component 30 and the plurality of electronic devices 71, 72 and 73.

[0033] The receiving housing 20 includes a lower housing 21 and an upper housing 22. The lower housing 21 has, for example, a plate shape. Note that the shape of the lower housing 21 is not limited to the plate shape and may be substantially a box shape with an upward opening. In this case, a flange portion may be provided at an upper end of the lower housing 21. The lower housing 21 is made of, for example, a metal material such as SUS.

[0034] The upper housing 22 is provided to cover the lower housing 21. The upper housing 22 is substantially in the shape of a downwardly opening box. A flange portion is provided at a lower end of the upper housing 22, and the flange portion is fixed to a peripheral edge portion of the lower housing 21. When the lower housing 21 has the above-described flange portion, the flange portion of the upper housing 22 and the flange portion of the lower housing 21 may be fixed to each other by a fastener.

[0035] From the perspective of weight reduction, the upper housing 22 may be made of a resin material or plastic. The upper housing 22 may be made of a metal material such as aluminum or SUS. The rigidity of the upper housing 22 may be lower than that of the lower housing 21.

[0036] The upper housing 22 has a front wall portion 221, a rear wall portion 222, and a top wall portion 223. The front wall portion 221 is located on the front side of the front module 11. The front wall portion 221 may be inclined upwardly and rearwardly during molding of the upper housing 22 due to a draft angle or the like.

[0037] The rear wall section 222 is located on the rear side of the rear module 13.

[0038] The rear wall section 222 functions as a second wall section facing the second energy storage module 15 from the rear. In particular, the rear wall section 222 faces the first energy storage module 14 and the second energy storage module 15 from the rear.

[0039] The rear wall portion 222 may be inclined upwardly and forwardly during the molding of the upper housing 22 due to a draft angle or the like. In this case, by attaching the second energy storage module to the support member 30 such that the rear end portion 15b of the second energy storage module 15 is located further forward than the rear end portion 14b of the first energy storage module 14, a smaller gap can be achieved between the rear wall portion 222 and the lowermost energy storage stack of the plurality of energy storage stacks constituting the first energy storage module 14. This can reduce dead space in the receiving housing 20, and the plurality of energy storage stacks can be arranged at a high density in the receiving housing.In particular, when the energy storage device 10 is arranged between two electric drive mechanisms 80 as described above, the space requirement is limited, so that the energy storage stacks can be arranged more effectively in high density.

[0040] The upper wall portion 223 connects the front wall portion 221 and the rear wall portion 222. The upper wall portion 223 has a concave-convex shape that matches the heights of the front module 11 and the electronic devices 71 and 72, the middle module 12 and the electronic device 73, and the rear module 13.

[0041] Specifically, the upper wall portion 223 includes a front portion 224, a center portion 225, and a rear portion 226. The front portion 224, center portion 225, and rear portion 226 are arranged in this order from the front side to the rear side.

[0042] The front section 224 is arranged above the front-side module 11 and the electronic devices 71 and 72. A height position of the front section 224 is higher than that of the center section 225. A stepped section 215a is formed between the front section 224 and the center section 225.

[0043] The center section 225 is arranged above the center module 12. The center section 225 is located at a lower position than the front section 224 and the rear section 226.

[0044] The rear portion 226 includes a first rear portion 227 and a second rear portion 228. The first rear portion 227 is located above the electronic device 73. A height position of the first rear portion 227 is higher than that of the center portion 225. A step portion 225b is formed between the first rear portion 227 and the center portion 225.

[0045] The second rear section 228 is located further rearward relative to the first rear section 227. The second rear section 228 is located above the second energy storage module 15. The height of the second rear section 228 is higher than that of the first rear section 227. A stepped section 229 is formed between the second rear section 228 and the first rear section 227. The height of the second rear section 228 is higher than that of the front section 224.

[0046] The step portion 225b, the first rear portion 227, and the above-described step portion 229 of the upper wall portion 223 function as a first wall portion facing the second energy storage module 15 from the front side.

[0047] The support member 30 is arranged in the height direction between the first energy storage module 14 and the second energy storage module 15. The underside of the second energy storage module 15 is fixed to the upper surface 30a (see Fig. 3) of the support component 30. The top side of the first energy storage module 14 is fixed to the lower surface 30b (see Fig. 3) of the support component 30. The support component 30 is attached to the receiving housing 20 as described below.

[0048] Fig. 3 is a perspective view of the support member according to the first embodiment. Fig. Fig. 4 is a cross-sectional view showing a state in which the support member according to the first embodiment is attached to the receiving case. Details of the support member 30 are explained with reference to Fig. 3 and Fig. 4 described.

[0049] The support member 30 has a plate-shaped portion 31. Fixed portions 32 and a plurality of fastening portions 33 and 34 are provided on the plate-shaped portion 31. An upper surface of the plate-shaped portion 31 forms an upper surface 30a of the support member 30, and a lower surface of the plate-shaped portion 31 forms a lower surface 30b of the support member 30.

[0050] The plate-shaped portion 31 has a first end portion 31a and a second end portion 31b. The first end portion 31a is a front end of the plate-shaped portion 31, and the second end portion 31b is a rear end of the plate-shaped portion 31.

[0051] Fixed sections 32 are attached to the second end section 31b. Two fixed sections 32 are provided. Two fixed sections 32 are provided on one side and on the other side in the width direction of the vehicle. It should be noted that the number of fixed sections 32 is not limited to two, but may be one, three, or more. When two fixed sections 32 are provided, the energy storage device 10 can be connected by fixed sections 32 and coupling elements 60 (see Fig. 5), as described below, efficiently on a pair of rear elements 51 (see Fig. 5) are attached.

[0052] Each of the fixed sections 32 includes a section 32c extending along the rear wall section 222. Section 32c faces the rear wall section 222 and is secured to the rear wall section 222 by a securing member 40. An insertion section 41 is provided in the securing member 40 for securing the coupling member 60 described below.

[0053] The plurality of module attachment portions 33 are provided on the upper surface 30a of the support member 30. The bottom surface of the second energy storage module 15 is attached and fixed to the plurality of module attachment portions 33. The plurality of module attachment portions 34 are provided on the lower surface 30b of the support member 30. The top surface of the first energy storage module 14 is attached and fixed to the plurality of module attachment portions 34.

[0054] As described above, in the energy storage device 10 according to the first embodiment, the support member 30 to which the first energy storage module 14 and the second energy storage module 15 arranged in the height direction are fixed is fixed to the accommodating case 20, whereby the rigidity of the accommodating case 20 can be increased.

[0055] In addition, fixed portions 32 are fixed to the upper housing 22, thereby increasing the rigidity of the upper housing 22. When the upper housing 22 is made of a material with lower rigidity than a metal material, such as a resin material, the rigidity of the upper housing 22 can be increased more effectively.

[0056] Fig. 5 is a plan view showing a state in which the energy storage device according to the first embodiment is attached to a frame member of the vehicle.

[0057] As in Fig. As shown in Figure 5, the vehicle 1 includes a vehicle frame member 50 and a plurality of coupling members 60. The vehicle frame member 50 includes, for example, a pair of side members and a plurality of cross members. The pair of side members includes a pair of front members (not shown), a pair of rear members 51, and a pair of connecting portions 53 that connect the pair of front members and the pair of rear members 51 to each other.

[0058] The pair of front-side members, the pair of connecting portions 53, and the pair of rear-side members 51 extend along the longitudinal direction of the vehicle 1 and are arranged in this order from the front to the rear of the vehicle 1. The pair of front-side members, the pair of connecting portions 53, and the pair of rear-side members 51 are spaced apart from each other in the width direction of the vehicle 1.

[0059] A rear end plate 56 is provided at the rear end side of the pair of rear-side members 51. The rear end plate 56 forms a rear portion of the vehicle 1. A cross member 55 is arranged at the front side of the rear end plate 56. The cross member 55 is provided to connect the two rear-side members 51 and extends along the width direction of the vehicle 1. The cross member 55 is arranged at the rear side of the energy storage device 10.

[0060] The rear wall portion 222 of the receiving housing 20 is located between the pair of rear-side elements 51 or between the above-described pair of connecting portions 53.

[0061] The receiving case 20 is connected to the vehicle frame member 50 via the plurality of coupling members 60. Specifically, the receiving case 20 is fixed and coupled to the pair of rear-side members 51 by two coupling members 60. Specifically, the receiving case 20 is fixed to the rear-side member 51 located on one side in the width direction by coupling members 60 arranged on one side in the width direction described above, and is fixed to the rear-side member 51 located on the other side in the width direction by coupling members 60 arranged on the other side in the width direction described above.

[0062] Fig. 6 is an enlarged perspective view showing a state in which the energy storage device according to the first embodiment is fixed to the frame part by the coupling member.

[0063] As in Fig. 6, the coupling element 60 comprises a first element 61, a second element 62, a first fastening element 65 and a second fastening element 66.

[0064] The first member 61 includes a first portion 611, a second portion 612, and a reinforcement portion 613. The first portion 611 is provided along the rear wall portion 222 of the receiving case 20. The first portion 611 is in the shape of a plate and abuts against the rear wall portion 222. The second portion 612 is provided to intersect the first portion 611. The second portion 612 protrudes rearward from the first portion 611. The second portion 612 is in the shape of a plate. The reinforcement portion 613 connects the first portion 611 and the second portion 612 to each other. Specifically, the reinforcement portion 613 connects the ends of the portions of the first portion 611 and the second portion 612 to each other on a side opposite a side on which the nearest rear-side member 51 is located.

[0065] The first member 61 is fixed to the receiving housing 20 by the first fixing member 65. Specifically, the first fixing member 65 is inserted into the above-described insertion portion 41 through the first portion 611, thereby fixing the first member 61 to the rear wall portion 222 and the fixed portion 32. That is, the first member 61 is fixed to a portion where the support member 30 is fixed to the receiving housing 20.

[0066] The second element 62 consists of a first piece portion 621 and a second piece portion 622. The first piece portion 621 has, for example, the shape of a plate. The first piece portion 621 is arranged on the first portion 611 and is fastened to the first portion 611 by the second fastening element 66. An end portion of the first portion 621 on the side where the next rear-side element 51 is located is fastened to a side surface of this rear-side element 51 by welding or the like.

[0067] Second piece portions 622 are provided so as to protrude in the height direction from both end portions of the first piece portion 621 in the longitudinal direction. Each of the second piece portions 622 has a shape that extends upward toward the nearest rear-side member 51. The end portion of the second piece 622 on the side where the nearest rear-side member 51 is located is fixed to the side surface of this rear-side member 51 by welding or the like.

[0068] As described above, the second member 62 fixed to the rear member 51 is fixed to the first member 61 in a state where the first member 61 is fixed to the receiving case 20, and the receiving case 20 and the vehicle frame member 50 are coupled to each other by the coupling member 60.

[0069] At this time, the first member 61 is fixed to the portion where the support member 30 is fixed to the receiving case 20 as described above, whereby the rigidity of the receiving case 20 and the rigidity of the vehicle frame member 50 can be effectively increased. (Second embodiment)

[0070] Fig. Fig. 7 is a cross-sectional view showing a state in which a support member is attached to a receiving case according to a second embodiment. An energy storage device 10A according to the second embodiment is described with reference to Fig. Fig. 7 described.

[0071] As in Fig. As shown in Fig. 7, the energy storage device 10A according to the second embodiment differs from the energy storage device 10 according to the first embodiment in that no fixed portions 32 are provided and the support member 30 is directly attached to the receiving case 20. Specifically, the second end portion 31b of the plate-shaped portion 31 is attached to the rear wall portion 222 of the upper case 22 by the fastening member 40.

[0072] Even if the energy storage device 10A according to the second embodiment is configured as described above, the energy storage device 10A according to the second embodiment achieves substantially the same effect as the energy storage device 10 according to the first embodiment. (Third embodiment)

[0073] Fig. Fig. 8 is a schematic view of an energy storage device according to a third embodiment. An energy storage device 10B according to the third embodiment will be described with reference to Fig. 8 described.

[0074] As in Fig. 8, the energy storage device 10B according to the third embodiment differs from the energy storage device 10 according to the first embodiment with respect to the state of attachment of the support member 30. The energy storage device 10B according to the third embodiment is otherwise substantially the same as the energy storage device 10 according to the first embodiment.

[0075] In the energy storage device 10B according to the third embodiment, the support member 30 is fixed to the first wall portion consisting of the step portion 225b, the first rear portion 227, and the step portion 229, and the rear wall portion 222 serves as the second wall portion.

[0076] Specifically, a fixed portion 39 (second fixed portion) is provided on the first end portion 31a side, and the fixed portion 39 is fixed to the above-described first wall portion. Furthermore, similar to the first embodiment, the fixed portion 32 (first fixed portion) provided on the second end portion 31b side is fixed to the rear wall portion 222.

[0077] Although the energy storage device 10B according to the third embodiment is constructed as described above, the energy storage device 10B according to the third embodiment achieves substantially the same effect as the energy storage device 10 according to the first embodiment. Furthermore, as described above, the support member 30 is fixed to the first wall portion and the second wall portion of the upper case 22 at two locations on the front and rear sides, so that the rigidity of the upper case 22 can be further increased. The first end portion 31a can be directly fixed to the first wall portion.

[0078] Although the embodiments of the present disclosure have been described, it should be understood that the embodiments disclosed herein are in all respects illustrative and not restrictive. The scope of the present disclosure is defined by the terms of the claims and is intended to include all changes within the scope and meaning consistent with the terms of the claims. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] JP 2020-061380

[0003] JP 2020-061 380 B [0003, 0004]

Claims

[1] Energy storage device (10, 10A, 10B) comprising: a first energy storage module (14); a second energy storage module (15) arranged above the first energy storage module (14); a receiving housing (20) which receives the first energy storage module (14) and the second energy storage module (15); and a support component (30) which is arranged in a height direction between the first energy storage module (14) and the second energy storage module (15), wherein a bottom side of the second energy storage module (15) is attached to a side (30a) of an upper surface of the support component (30), a top side of the first energy storage module (14) is attached to a side (30b) of a lower surface of the support component (30) and the carrier component (30) is fastened to the receiving housing (20). [2] Energy storage device (10, 10B) according to claim 1, wherein the support component (30) has a fixed portion (32) which is attached to the receiving housing (20), the receiving housing (20) comprises an upper housing (22) and the fixed section (32) is attached to the upper housing (22). [3] Energy storage device (10B) according to claim 2, wherein in a front-to-back direction orthogonal to the height direction, the upper housing (22) has a first wall portion facing the second energy storage module (15) from a front side and a second wall portion facing the second energy storage module (15) from a rear side, and the support component (30) is fastened to both the first wall section and the second wall section. [4] Energy storage device (10, 10A, 10B) according to claim 1, wherein both the first energy storage module (14) and the second energy storage module (15) have a front end portion (14a, 15a) and a rear end portion (14b, 15b) in a longitudinal direction perpendicular to the height direction, and the rear end portion (15b) of the second energy storage module (15) is arranged on a front side of the rear end portion (14b) of the first energy storage module (14). [5] Vehicle comprising: the energy storage device (10, 10A, 10B) according to one of claims 1 to 4; a vehicle frame member (50); and a coupling element (60) which couples the receiving housing (20) and the vehicle frame element (50) to one another, wherein the coupling element (60) is fastened to a portion to which the carrier component (30) is fastened to the receiving housing (20).

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