Container for battery module and associated power storage system

Abstract

The container (12) comprises a structure (30) for receiving the battery module (16), the structure comprising upper corner pieces (70) mounted on upper corners of a peripheral wall (36) of the structure (30), the structure (30) further having a top plate (40) extending between the upper corners. The top plate (40) comprises a drainage area (80) comprising at least two inclined surfaces (82A to 82D) inclined between the lower edge and at least one upper point (86) common to the two inclined surfaces (82A to 82D) so as to allow water received on each inclined surface (82A to 82D) to flow towards its lower edge. The drainage region (80) lies in or below a plane (P) defined by the upper surface (72) of the upper corner piece (70).

Description

Technical Field

[0001] The present invention relates to a container for a battery module, which container includes a structure for receiving the battery module, the structure including a bottom plate, a peripheral wall extending vertically around the periphery of the bottom plate and defining an upper corner, an upper corner piece installed on the upper corner and protruding above the upper edge of the peripheral wall, the upper corner pieces each having an upper surface, and the structure also includes a top plate extending between the upper corners, the top plate, the peripheral wall and the bottom plate defining an internal battery module storage volume. Background Art

[0002] Such containers are intended to hold battery modules to provide a relocatable power source that can be temporarily or permanently installed at a location where power is needed.

[0003] Generally, it is known to construct an electricity storage system by arranging battery modules and electrical and thermal module management units in a standard parallelepiped container. This storage system is easy to move, in particular by road, rail, sea or air.

[0004] The structure of the container for receiving the battery module generally includes a bottom plate, a peripheral wall protruding relative to the bottom plate, and a flat top plate enclosing an internal volume body containing the battery module.

[0005] As a standard, the container is equipped with corner pieces at its upper and lower corners. The lower corner piece projects downwards relative to the bottom plate, and the upper corner piece projects upwards relative to the top plate. Thus, the container can be arranged below another container, the lower corner piece of the other container pressing on the upper corner piece of the container.

[0006] Such containers are not entirely satisfactory when placed outside. The top plate of the container is flat and rainwater that falls on the top plate may accumulate above the container. This accumulation occurs particularly in the center of the container, especially in the area farthest from the side edges of the top plate.

[0007] In some cases, stagnant rainwater may cause premature wear and tear of the container, particularly by promoting oxidation, or even by creating holes that communicate with the internal volume containing the battery modules. This may be detrimental to the operation of the container, as the battery modules are sensitive to water. In addition, the aesthetic appearance of the container is impaired.

[0008] In order to alleviate this problem, for example, CN212461856U is known in which a steep roof is arranged above the container, which prevents rainwater from being retained when it falls on the container.

[0009] This solution effectively protects the container. However, it is not satisfactory because the container can only be transported on top of a stack of containers without receiving additional containers on top of it. The steep roof increases transportation costs and makes container handling more difficult.

[0010] In order to avoid problems during transportation, the steeply sloping roof according to CN212461856U cannot be installed during assembly of the storage system, but can only be installed when the container is on site. Summary of the invention

[0011] One object of the present invention is therefore to obtain a container for battery modules which is highly weather-resistant and yet simple and inexpensive to transport.

[0012] To this end, the subject of the invention is a container of the aforementioned type, characterized in that the top plate comprises at least one drainage area, which includes at least two inclined surfaces, which are between the lower edge and at least one upper point common to the two inclined surfaces, so as to allow water received on each inclined surface to flow towards its lower edge, the drainage area being located in or below the plane defined by the upper surface of the upper corner piece.

[0013] The container according to the invention may comprise one or more of the following features, taken alone or in any technically possible combination:

[0014] - the peripheral wall comprises two opposite longitudinal walls extending along the longitudinal axis of the container and two transverse walls extending perpendicular to the longitudinal axis, and at least two inclined surfaces are longitudinal inclined surfaces inclined away from each other towards the opposite longitudinal walls;

[0015] - the top plate comprises at least four inclined surfaces, at least two of which are transverse inclined surfaces inclined away from each other towards the transverse wall;

[0016] - the four inclined surfaces are pyramidal, the upper point being common to all the inclined surfaces and forming the apex of the pyramid;

[0017] - the two inclined surfaces have a common upper edge, which defines a plurality of common upper points;

[0018] - the structure comprises at least one structural support surface extending between the two peripheral walls below the two inclined surfaces, the structure further comprising at least one reinforcing support column interposed between the structural support surface and at least one inclined surface;

[0019] - the structure comprises a roof support frame comprising at least one longitudinal member extending along the longitudinal axis of the container and / or at least one transverse member extending transversely relative to the longitudinal axis of the container, the structural support surface extending on said longitudinal member and / or said transverse member;

[0020] - the roof further comprises at least one non-sloped area adjacent to the drainage area;

[0021] - the roof comprises two non-inclined areas located on either side of the drainage area;

[0022] - the top plate does not have any non-inclined areas;

[0023] - the non-inclined area and / or at least one inclined surface of the top plate define at least one through-opening for venting excess pressure in the internal volume body, the top plate comprising a deflagration plate attached to the through-opening, the deflagration plate being able to at least partially release the through-opening in case of excess pressure in the internal volume body above a given threshold;

[0024] - the peripheral wall defines the lower corner, the structure comprising a lower corner piece mounted below the lower corner and aligned with the upper corner piece;

[0025] - The structure comprises a thermal insulation layer arranged at least below the inclined surface.

[0026] The subject of the invention is also an electricity storage system comprising:

[0027] - a container as defined above;

[0028] - a battery module received in said internal volume;

[0029] - terminals connected to the battery module and intended to be connected to consumers of the electric power supplied by the battery module and / or to electric power supply means for recharging the battery module.

[0030] The system according to the invention may include the following features:

[0031] The structure comprises an internal partition which divides the internal volume to define a control room receiving at least one battery module management system and at least one storage room receiving a battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The invention will be better understood by reading the following description which is given by way of example only and with reference to the accompanying drawings, in which:

[0033] -[ Figure 1 ] Figure 1 is a perspective view of a first displaceable electrical energy storage system comprising a container of a battery module according to the invention, the container being partially opened;

[0034] -[ Figure 2 ] Figure 2 yes Figure 1 A top perspective view of a top plate of a container;

[0035] -[ Figure 3 ] Figure 3 Yes means Figure 1A schematic diagram of an example of a top plate support structure of a container;

[0036] -[ Figure 4 ] Figure 4 It is shown Figure 1 A schematic diagram of a reinforced support with an inclined surface, the reinforced support allowing an operator to walk on the container;

[0037] -[ Figure 5 ] Figure 5 is a container top plate similar to the second electrical energy storage system according to the present invention. Figure 3 's view;

[0038] -[ Figure 6 ] Figure 6 is a container top plate similar to the third electric energy storage system according to the present invention. Figure 2 of the view. DETAILED DESCRIPTION

[0039] Hereafter, orientation is usually defined relative to the position of the container resting on a horizontal flat surface. In particular, the terms "below", "below", "on", "above" are usually understood relative to the container position.

[0040] The first electrical energy storage system 10 according to the present invention is Figure 1 Shown in.

[0041] The storage system 10 is intended to be moved to the site of use, for example by road vehicles such as trucks, by rail vehicles or / and by sea vehicles such as transport ships. It is intended to be electrically connected to the power utilization network of the site of use and alternately connected to the power supply network for recharging.

[0042] like Figure 1 As shown, storage system 10 includes a battery module container 12 defining an interior volume 14, and a plurality of battery modules 16 received in interior volume 14. Advantageously, storage system 10 includes a battery management module (BMM) system 18 for electrical and thermal management of battery modules 16, and a safety system 20.

[0043] In this example, the container 12 contains, for example, 10 to 150 battery modules 16. The battery modules 16 are arranged in columns and rows. They are connected in series and / or in parallel to deliver up to 4 MWh of electrical power at a voltage of up to 1500 V to at least two electrical terminals 22 present on the container 12.

[0044] Each battery module 16 includes a plurality of electrochemical cells, for example, which are received in a prismatic or cylindrical housing or a flexible bag. Each electrochemical cell includes an anode, a cathode and a separator, between which an electrochemical reaction occurs.

[0045] The management system 18 is capable of controlling the voltage and current delivered by each battery module 16 when supplying power, and controlling the power and current delivered to each battery module 16 when recharging the battery module 16 .

[0046] The electrical terminals 22 are intended to be connected to a user network (not shown) to supply the electrical energy stored in the battery module 16 , and alternately to a power supply network to recharge the battery module 16 .

[0047] The safety system 20 includes, for example, a sensor (not shown) for detecting the temperature and / or pressure in the internal volume body 14, an inert gas source 24 and a control unit 25, which is capable of delivering inert gas from the inert gas source 24 to the internal volume body 14 when an increase in the temperature and / or pressure in the internal volume body 14 is detected above a given threshold.

[0048] exist Figure 1 In the example shown, the container 12 comprises a self-supporting structure 30 intended to define the internal volume 14 and to allow the battery modules 16 , the module management system 18 and the safety system 20 to be transported together to the site of use.

[0049] The structure 30 comprises a base plate 32 mounted on base plate supports 34. It comprises a peripheral wall 36 projecting from the periphery of the base plate 32, the peripheral wall 36 being supported by vertical columns 38 at the corners of the wall 36. It also comprises a top plate 40 carried by a support frame 42, which is particularly Figure 3 Visible in.

[0050] The structure 30 of the container 12 is here of polyhedral shape. In particular, the structure 30 has the shape of a cuboid which extends longitudinally along a horizontal longitudinal axis AA' when the container 12 is placed on a horizontal support.

[0051] The container 12 has, for example, a length greater than 2 m, in particular between 2.5 m and 15 m, a width greater than 1 m, in particular between 2 m and 4 m, and a height greater than 1 m, in particular between 2 m and 4 m.

[0052] In particular, container 12 is a 20ft "high cube" container having a length of 6.058m, a width of 2.438m and a height of 2.896m. However, the present invention is applicable to any type of container having ISO corners (e.g., 40ft (12m), 10ft (3m), etc.).

[0053] The base plate 32 is flat here. It supports the battery modules 16, the management system 18 and the safety system 20 (when present). The base plate 32 delimits the inner volume 14 towards the bottom.

[0054] The floor supports 34 comprise, for example, beams extending longitudinally along the edges of the structure 30 , in particular beams of the IPN type, and at the longitudinal ends of the structure 30 , transverse cross-members connecting the longitudinal beams.

[0055] The floor 32 is mounted adjacently on a floor support 34. The floor support 34 can be gripped, for example, by gripping members of a crane in order to lift the container 12 and displace it.

[0056] The floor support member 34 is provided with a lower corner member 46 extending at each corner defined between two adjacent peripheral walls 36 .

[0057] The lower corner piece 46 has a lower surface 48 that is intended to rest on the ground or other support, with the base plate 32 then positioned above the ground or support.

[0058] In this example, each lower corner piece 46 is located below a vertical column 38 .

[0059] The peripheral wall 36 includes two vertical longitudinal walls 50A, 50B (the wall 50B has been Figure 1 but especially in Figure 3 As can be seen in FIG. 1 , the longitudinal walls 50A, 50B are arranged vertically parallel to the axis AA' on both sides of the axis AA'.

[0060] The peripheral wall 36 also comprises two vertical transverse walls 52C, 52D extending perpendicularly to the axis AA′ and connecting the longitudinal walls 50A, 50B to one another at the longitudinal ends of the structure 30 .

[0061] The longitudinal walls 50A, 50B and possibly the transverse walls 52C, 52D delimit in pairs the corners of the structure 30. They delimit the inner volume 14 towards the outside.

[0062] The longitudinal walls 50A, 50B and possibly the transverse walls 52C, 52D are equipped with movable doors, allowing, for example, to provide access from the outside of the container 12 to the internal volume 14 .

[0063] Advantageously, the structure 30 also comprises an internal partition 54 of the internal volume 14 which delimits therein a chamber 56 for storing the battery modules 16 and separately a control chamber 58 receiving the management system 18 and the safety system 20 .

[0064] Advantageously, at least one door arranged in the peripheral wall 36 allows access to the storage compartment 56 without having to open the control compartment 58 , and at least one other door allows access to the control compartment 58 without having to open the storage compartment 56 .

[0065] Reference Figure 3, the support frame 42 comprises a plurality of longitudinal members 60 and advantageously a plurality of transverse members 62 connecting the longitudinal members 60 transversely to one another.

[0066] At least two lateral longitudinal members 60 connect the column 38 parallel to the axis AA′. At least two end cross members 62 connect the column 38 transversely to the axis AA′.

[0067] In this example, the support frame 42 also includes at least one additional longitudinal member 60A arranged between the lateral longitudinal members 60, and a plurality of additional cross members 62B arranged between the end cross members 62. The longitudinal members 60, 60A and the cross members 62, 62B define at least one bearing surface 64 supporting the top plate 40 below the top plate 40.

[0068] The longitudinal members 60 and the transverse members 62 are dimensioned to support the top plate 40 and at least one equipped person walking on the top plate, the equipped person weighing, for example, 100 kg.

[0069] The supporting frame 42 also comprises an upper corner piece 70 intended to project above the vertical columns 38, above the top plate 40. The corner piece 70 defines an upper surface 72 which is flat and horizontal when the axis AA' is horizontal.

[0070] As in Figure 1 and Figure 3 As can be seen in FIG. 1 , the upper surface 72 of the corner piece 70 defines an upper plane P of the container 12 , wherein no element of the container 12 protrudes beyond the upper plane P.

[0071] The top plate 40 is preferably made of metal, in particular steel, and is advantageously covered with a protective coating, in particular an anti-rust paint.

[0072] According to the present invention, Figure 2 In the example of FIG. 3 , the roof 40 of the structure 30 comprises a central drainage area 80 provided with at least two inclined surfaces 82A to 82D and advantageously comprises two non-inclined areas 84 longitudinally located on either side of the central area 80 .

[0073] The central zone 80 extends over a length of at least 10%, preferably at least 20%, of the length of the top plate 40 taken along the axis AA′.

[0074] exist Figure 1 In the example shown, the central region 80 includes four inclined surfaces 82A to 82D defining a pyramid.

[0075] Reference Figure 2The central region 80 therefore comprises two longitudinal inclined surfaces 82A, 82B having an inclination pointing laterally towards the longitudinal walls 50A, 50B respectively, and two transverse inclined surfaces 82C, 82D having an inclination pointing longitudinally towards the transverse walls 52C, 52D respectively.

[0076] Each of the inclined surfaces 82A-82D has a generally triangular shape that defines an upper point 86 that is common to all four inclined surfaces 82A-82D.

[0077] Each inclined surface 82A to 82D includes a lower edge 88 and two edges 90 , 92 converging from ends of the lower edge 88 toward the upper point 86 .

[0078] The lower edges 88 of the inclined longitudinal faces 82A, 82B extend along and above the respective longitudinal walls 50A, 50B, in particular on the upper surface defined by the longitudinal member 60 .

[0079] The lower edges 88 of the transverse inclined faces 82C, 82D extend parallel to the transverse walls 52C, 52D, preferably facing the transverse member 62. They delimit a non-inclined zone 84 towards the centre of the top plate 40.

[0080] The central drainage area 80 is completely located in and below the upper plane P defined by the upper surface 72 of the upper corner piece 70, or is completely located below the upper plane P. It does not protrude above the upper plane P.

[0081] Thus, upper point 86 is located in or below plane P when container 12 rests horizontally on a horizontal support.

[0082] Reference Figure 4 , a height H1 of the upper point 86 obtained vertically from the support surface 64 defined on the longitudinal member 60 is less than or equal to a height H2 of the upper surface 72 of the upper corner piece 70 obtained vertically from the support surface 64 .

[0083] The height H2 is between 20 mm and 30 mm. The height H1 ensures that a distance of at least 5 mm is maintained below the plane P.

[0084] Thus, the central drainage area 80 will not interfere with additional containers that will be placed on the upper corner piece 70 of the container 12 via its lower corner piece.

[0085] For typical dimensions of the container 12 , the inclination angle of each inclined surface 82A to 82D relative to the horizontal plane is, for example, less than 10°, and in particular between 1° and 5°.

[0086] Thus, the area occupied by the inclined surfaces 82A to 82D of the central drainage area 80 is advantageously greater than at least 3% of the total area of ​​the top plate 40 , these areas being obtained in projection in a horizontal plane.

[0087] Advantageously, in order to increase the rigidity of the central zone 80 , and in particular of each inclined surface 82A to 82D, the top plate 40 comprises reinforcing struts 94 extending between the support surface 64 and the lower surface of the inclined surfaces 82A to 82D.

[0088] exist Figure 2 In the example shown, the top plate 40 includes at least one reinforcing post 94 between the support surface 64 and each of the inclined surfaces 82A to 82D, and preferably includes at least two spaced apart reinforcing posts 94 interposed between the support surface 64 and each of the inclined surfaces 82A to 82D.

[0089] For the inclined longitudinal faces 82A, 82B, the reinforcing struts 94 are arranged on the bearing surface 64 defined by the transverse member 62. For the inclined transverse faces 82C, 82D, the reinforcing struts 94 are arranged on the bearing surface 64 defined by the longitudinal member 60, in particular by the central longitudinal member parallel to the axis AA'.

[0090] Due to the presence of the reinforcing pillars 94 located below the inclined surfaces 82A, 82B, the central drainage area 80 can carry an operator equipped with his equipment (for example, weighing 100 kg with his equipment) without deforming the inclined surfaces 82A, 82B. In addition, the shape and inclination of the lateral inclined surfaces 82C, 82D enhance the structural rigidity of the drainage area 80, thereby allowing the operator to walk on the top plate 40 without buckling the inclined surfaces 82A to 82D.

[0091] Special reference Figure 1 Each non-sloped area 84 includes at least one horizontal roof panel 100 that extends longitudinally between the upper edge of the corresponding transverse wall 50C, 50D and the central drainage area 80, and extends laterally between the upper edges of the longitudinal walls 50A, 50B.

[0092] Each non-inclined area 84 defines at least one through-opening 102 for discharging excess pressure in the internal volume body 14, and for each through-opening 102, a deflagration plate 104 is attached to the top plate panel 100 around the periphery of the through-opening 102, for closing the through-opening 102 in a sealed manner when there is no excess pressure in the internal volume body 14 that is higher than a calibrated threshold.

[0093] The roof panel 100 is supported by bearing surfaces 64 defined on the longitudinal members 60 and the cross members 62 .

[0094] In this example, each through-opening 102 passes vertically through the roof panel 100. The roof panel 100 comprises two parallel through-openings 102 projected in a horizontal plane, situated on either side of the axis AA'.

[0095] Each through-opening 102 has, for example, a polygonal contour, in particular a rectangular contour.

[0096] A deflagration plate 104 is attached to the periphery of the through opening 102. The fixture is configured to define a calibrated overpressure threshold, beyond which the deflagration plate 104 opens to partially release the through opening 102 and reduce the pressure within the inner volume 14.

[0097] Each roof panel 100 and each deflagration plate 104 attached thereto is located below an upper plane P defined by the upper surface 72 of the upper corner piece 70. In addition, the deflagration plate 104 has an upper surface located vertically below the upper point 86 of the inclined surfaces 82A to 82D.

[0098] Due to the presence of the central drainage area 80, rainwater falling at the level of the central drainage area 80 is naturally drained toward the side edges of the container 12 due to the inclined surfaces 82A, 82B, and away from the center of the top plate 40 through the inclined surfaces 82C, 82D.

[0099] Thus, the accumulation of water in the center of the top plate 40 is eliminated, or at least very significantly reduced. This limits the risk of water stagnation and therefore the risk of damage to the top plate 40 of the container 12 in its center. The formation of holes that compromise the water tightness of the container 12 by corrosion is thus avoided.

[0100] Therefore, the container 12 has a longer service life and greater reliability for the battery modules 16 contained therein because these battery modules are not exposed to moisture. In addition, it also has an improved external aesthetic appearance even when subjected to adverse weather conditions.

[0101] The central drainage area 80, which is located below the plane P defined by the top surface 72 of the top corner piece 70, does not interfere with the normal transportation of the container 12. In particular, the container 12 can be transported below other containers in a stack of containers by receiving the lower corner piece of another container on its upper corner piece 70. In particular, this allows it to be loaded onto a ship, thereby reducing transportation costs.

[0102] exist Figure 5 In an alternative shown in FIG. 1 , projected in a horizontal plane, the area of ​​the longitudinal inclined surfaces 82A, 82B is greater than the area of ​​the transverse inclined surfaces 82C, 82D. In particular, the area of ​​the longitudinal inclined surfaces 82A, 82B is greater than 200% of the area of ​​the transverse inclined surfaces 82C, 82D.

[0103] The longitudinal faces 82A and 82B delimit between them a horizontal upper edge 120 extending parallel to the axis AA' and defining a plurality of upper points 86 of the central drainage area 80. The upper edge 120 extends between the edges 88, 90 of each face 82A, 82B.

[0104] As previously mentioned, the top edge 120 so defined lies in the plane P, or below the plane P defined by the upper surface 72 of the upper corner piece 70 .

[0105] The longitudinal inclined faces 82A, 82B thus have a trapezoidal profile, whereas the transverse longitudinal faces have a triangular profile.

[0106] This arrangement optimizes the flow towards the longitudinal walls 50A, 50B rather than towards the non-inclined area 84. Thus, water stagnation is more limited.

[0107] exist Figure 6 In the alternative shown, the top plate 40 is devoid of the non-inclined region 84 .

[0108] Drain area 80 extends across the entire length and width of top panel 40 .

[0109] In this example, projected in a horizontal plane, the area occupied by the inclined transverse faces 82C, 82D is preferably less than 10% of the area occupied by the inclined longitudinal faces 82A, 82B.

[0110] As previously mentioned, the entire drainage area 80 including the upper edge 120 is located in or below the plane P.

[0111] In this alternative, as described above, the through-opening 102 for pressure discharge is arranged directly in the inclined surfaces 82A, 82B, and the deflagration plate 104 is attached to the inclined surfaces 82A, 82B around the periphery of the through-opening 102 .

[0112] In an alternative, an insulating layer (e.g., a fiber layer made of rock wool) is arranged below the top plate 40, in particular in the volume defined between the support surface 64 and the inclined surfaces 82A to 82D. This alternative facilitates thermal insulation of the battery module 16, in particular when the temperature outside the energy storage system 10 increases.

Claims

1. A container (12) for a battery module (16), the container (12) comprising a structure (30) for receiving the battery module (16), the structure (30) comprising a bottom plate (32), a peripheral wall (36) extending vertically around the periphery of the bottom plate (32) and defining an upper corner, an upper corner piece (70) mounted on the upper corner and protruding above the upper edge of the peripheral wall (36), the upper corner pieces (70) each having an upper surface (72), the structure (30) further comprising a top plate (40) extending between the upper corners, the top plate (40), the peripheral wall (36) and the bottom plate (32) defining an internal volume (14) for storing the battery module (16), It is characterized in that The top plate (40) includes at least one drainage area (80), the drainage area (80) including at least two inclined surfaces (82A to 82D), at least two of the inclined surfaces being inclined between a lower edge (88) and at least one upper point (86) shared by the two inclined surfaces (82A to 82D) to allow water received on each of the inclined surfaces (82A to 82D) to flow toward its lower edge (88), the drainage area (80) being located in or below a plane defined by the upper surface (72) of the upper corner piece (70).

2. A container (12) according to claim 1, wherein the peripheral wall (36) includes two opposite longitudinal walls (50A, 50B) extending along the longitudinal axis (A-A') of the container (12), and two transverse walls (52C, 52D) extending perpendicular to the longitudinal axis (A-A'), and at least two inclined surfaces (82A, 82B) are longitudinal inclined surfaces inclined relative to each other toward the opposite longitudinal walls (50A, 50B).

3. A container (12) according to claim 2, wherein the top plate (40) includes at least four inclined surfaces (82A to 82D), and at least two inclined surfaces (82C, 82D) are lateral inclined surfaces inclined relative to each other toward the lateral walls (52C, 52D).

4. The container (12) according to claim 3, wherein the four inclined surfaces (82A to 82D) are pyramidal, the upper point (86) being common to all inclined surfaces (82A to 82D) and forming the apex of the pyramid.

5. The container (12) according to any one of claims 1 to 3, wherein the two inclined surfaces (82A to 82D) have a common top edge (120), and the common top edge (120) defines a plurality of common top points (86).

6. A container (12) according to any of the preceding claims, wherein the structure (30) includes at least one structural support surface (64) extending between the two peripheral walls (36) below the two inclined surfaces (82A to 82D), and the structure (30) also includes at least one reinforcing pillar (94) inserted between the structural support surface (64) and at least one of the inclined surfaces (82A to 82D).

7. A container (12) according to claim 6, wherein the structure (30) includes a frame (42) for supporting the top plate (40), the frame (42) including at least one longitudinal member (60, 60A) extending along the longitudinal axis (A-A') of the container (12) and / or at least one transverse member (62, 62B) extending transversely relative to the longitudinal axis (A-A') of the container (12), and the structural support surface (64) extends on the longitudinal member (60, 60A) and / or the transverse member (62, 62B).

8. The container (12) of any one of the preceding claims, wherein the top panel (40) further comprises at least one non-sloped area (84) adjacent to the drainage area (80).

9. The container (12) of claim 8, wherein the top plate (40) includes two non-inclined areas (84) located on either side of the drainage area (80).

10. The container (12) according to any one of claims 1 to 7, wherein the top panel (40) is free of a non-inclined area (84).

11. A container (12) according to any of the preceding claims, wherein the non-inclined area (84) and / or at least one inclined surface (82A to 82D) of the top plate (40) defines at least one through-opening (102) for discharging excess pressure in the internal volume body (14), and the top plate (40) includes a deflagration plate (104) attached to the through-opening (102), the deflagration plate (104) being capable of at least partially releasing the through-opening (102) when the excess pressure in the internal volume body (14) is higher than a given threshold.

12. A container (12) according to any one of the preceding claims, wherein the peripheral wall (36) defines a lower corner, and the structure (30) includes a lower corner piece (46) mounted below the lower corner and aligned with the upper corner piece (70).

13. The container (12) according to any one of the preceding claims, wherein the structure (30) comprises an insulating layer arranged at least below the inclined surfaces (82A to 82D).

14. An electric power storage system (10), comprising: A container (12) according to any one of the preceding claims; A battery module (16) received in the inner volume (14); A terminal (22) is connected to the battery module (16) and is intended to be connected to a consumer device supplied with power by the battery module (16) and / or to a power supply device for recharging the battery module (16).

15. A storage system (10) according to claim 14, wherein the structure (30) includes an internal partition (54), which divides the internal volume body (14) to define a control room (58) and at least one storage room (56), the control room (58) receiving at least one management system (18) for the battery module (16), and at least one storage room (56) receiving the battery module (16).

Images