Module for electric vehicle

Abstract

An electrical module (1) comprising an internal cavity (2) intended to be filled with a moving heat transfer fluid (3), said module (1) comprising a plurality of electrical cells (4) arranged in the internal cavity (2), said module (1) comprising at least one deflector device (18, 26, 33, 39) capable of directing the heat transfer fluid (3) in the internal cavity (2) so that said heat transfer fluid (3) moves around said cells (4). Figure for abbreviation: Figure 5

Description

Title of the invention: Module for electric vehicle Technical field of the invention

[0001] The invention relates to the field of rechargeable electric batteries for electric motor vehicles. In particular, the invention relates to modules comprising a plurality of electrical cells. More precisely, the invention relates to a module capable of being filled with a dielectric heat transfer fluid. The invention also relates to a thermal management system for this module. Technical background

[0002] The electric battery intended to equip electric vehicles comprises several electrical modules, themselves comprising numerous electrical cells.

[0003] For optimal operation, the cells are maintained within a predetermined temperature range.

[0004] Thus, the thermal management of cells can consist of cooling the cells or, on the contrary, heating them.

[0005] Thermal management of cells in a module is therefore a major issue.

[0006] Among existing thermal management techniques, one of them consists of immersing the cells in a liquid whose temperature is controlled. Thus, the cells in the module are in direct contact with a liquid.

[0007] This thermal management by immersion is particularly effective. Indeed, it allows for better heat transfer by direct contact and enables thermal control in areas that may be difficult to access otherwise.

[0008] Thermal management by immersion requires a sealed module in which the electrical cells are arranged. A fluid is circulated in the module.

[0009] Depending on the type of cells (cylindrical, prismatic, in bags, with wound electrodes or with stacked electrodes), thermal management can be adapted.

[0010] Stacked electrode cells have complex thermal management. These cells comprise a plurality of electrodes stacked one on top of the other, each electrode being distinct from the others.

[0011] Optimal management implies being able to act thermally on each of the electrodes that make up the cell.

[0012] Acting thermally on each of the electrodes is particularly complex to implement with regard to stacked electrode cells.

[0013] Another drawback of conventional immersion thermal management systems lies in the strong temperature gradients they generate. Due to By analyzing the distribution of heat flux around the cells, we observe that the periphery of the electrodes has a significantly higher temperature than the center of the electrode. This temperature difference reduces the efficiency of the electrodes and thus the performance of the cell.

[0014] There is therefore a need to improve the architecture of the electrical modules. Summary of the invention

[0015] To this end, an electrical module is proposed firstly comprising an internal cavity intended to be filled with a moving heat transfer fluid, said module comprising a plurality of electrical cells arranged in the internal cavity, said module comprising at least one deflecting device capable of directing the heat transfer fluid in the internal cavity so that said heat transfer fluid moves around said cells.

[0016] Various additional features may be provided alone or in combination: - the module includes a fluidic channel located around the cells, the heat transfer fluid being able to circulate in said fluidic channel, module in which at least one diverter device is arranged in the fluidic channel; - The module includes: -a lower wall, - an upper wall opposite the lower wall, - a first lateral wall connecting the lower wall to the upper wall, - a second lateral wall opposite the first lateral wall and connecting the lower wall to the upper wall, - a proximal wall integral with the inferior wall, the superior wall, the first lateral wall, and the second lateral wall, - a distal wall opposite the proximal wall and integral with the inferior wall, the superior wall, the first lateral wall and the second lateral wall, the inferior wall, superior wall, first lateral wall, second lateral wall, proximal wall and distal wall, together defining, the internal cavity; - the cells comprise a stack of electrodes distinct from one another and separated by a porous separator film, said electrodes being stacked along a stacking axis, module in which the electrical cells are arranged one on top of the other and in direct contact with each other so as to form at least one column which extends along the stacking axis of the electrodes of said cells, module in which the fluidic channel is located on the one hand between the proximal, distal, lateral walls and on the other hand at least one column of cells; - The first column includes: - a first face opposite the proximal wall, - a second face opposite the first face and facing the distal wall, - a third face opposite the first side wall, and - a fourth face opposite to the third face, module in which this includes a first deviating device which extends along the stacking axis from the lower wall to the upper wall on the one hand and from the proximal wall to the first column substantially in line with the fourth face, module in which it includes an inlet orifice substantially adjacent to the first diverter device so that the heat transfer fluid is directed along the first face then the third face then the second face then the fourth face of said first column; - includes at least one additional odd-numbered column of cells arranged between the first column and the second side wall, the at least one additional odd-numbered column comprising: - a fifth face opposite the proximal wall, - a sixth face opposite the fifth face and facing the distal wall, - a seventh face substantially perpendicular to the fifth and sixth faces and located on the side of the first lateral wall, - an eighth face opposite to the seventh face and located on the side of the second lateral wall, module in which this includes a second deflecting device which extends along the stacking axis from the lower wall to the upper wall on the one hand and - from the distal wall to the additional odd column substantially in line with the seventh face, so that the heat transfer fluid is directed at least partly along the seventh face; - the second diverting device includes fluid passages designed to allow the heat transfer fluid to be partly directed along the sixth face; - includes at least one additional even-numbered column of cells arranged between the first column and the second side wall, the at least one additional even-numbered column comprising: - a ninth face opposite the proximal wall, - a tenth face opposite the ninth face and facing the distal wall, - an eleventh face substantially perpendicular to the ninth and tenth faces and located on the side of the first lateral wall, - a twelfth face opposite the eleventh face and located on the side of the second lateral wall, module in which this includes a third deflecting device which extends along the stacking axis from the lower wall to the upper wall on the one hand and - from the proximal wall to the additional even column substantially in line with the eleventh face, so that the heat transfer fluid is directed at least partly along the eleventh face; - the third diverting device includes fluid passages designed to allow the heat transfer fluid to be partly directed along the ninth face; - includes an end column of cells immediately adjacent to the second lateral wall; the end column includes: - a thirteenth face opposite the proximal wall, - a fourteenth face opposite the thirteenth face and facing the distal wall, - a fifteenth face substantially perpendicular to the thirteenth and fourteenth faces, - a sixteenth face opposite the fifteenth face and facing the second lateral wall, module in which the total number of cell columns is even, said module includes a fourth deflector device extending along the stacking axis from the bottom wall to the top wall on one side and from the distal wall to the end column substantially in line with the fourteenth face, so that the heat transfer fluid is directed along the fourteenth face or module in which the total number of cell columns is odd greater than 1, said module includes a fourth deflecting device which extends along the stacking axis from the lower wall to the upper wall on the one hand and from the proximal wall to the end column substantially in line with the fourteenth face, so that the heat transfer fluid is directed along the fourteenth face; - the fourth diverter device is continuous; - a length of the heat transfer fluid flow measured between the inlet and outlet is less than or equal to five meters; - the cells include electrodes and an electrolyte which are packaged in a flexible, airtight bag.

[0017] Secondly, a thermal management system is proposed comprising the module presented above, said system comprising: - a closed fluidic circuit, - a heat transfer fluid, which is a dielectric liquid suitable for circulating in the fluid circuit, - means for measuring the temperature of the dielectric fluid, - a suitable pump designed to move the dielectric fluid in the fluidic circuit. - a computer management system capable of receiving data from temperature measurement devices and capable of controlling the pump. Brief description of the figures

[0018] Other features and advantages of the invention will become apparent upon reading the detailed description that follows, for an understanding of which reference should be made to the accompanying drawings in which:

[0019] [Fig-1] [Fig.1] is a schematic top-view representation of a module according to the state of the art.

[0020] [Fig.2] [Fig.2] is a schematic top view representation of a module according to the invention.

[0021] [Fig.3] [Fig.3] is a schematic top view representation of a module according to the invention.

[0022] [Fig.4] [Fig.4] is a schematic top view representation of a module according to the invention.

[0023] [Fig.5] [Fig.5] is a schematic top view representation of a module according to the invention.

[0024] [Fig.6] [Fig.6] is a schematic representation of a thermal management system comprising a module according to the invention. Detailed description of the invention

[0025] The drawings show an electrical module 1. The electrical module 1 includes an internal cavity 2. The internal cavity 2 is intended to be filled with a heat transfer fluid 3. The heat transfer fluid 3 is in motion, as indicated by the visible arrows. In other words, the heat transfer fluid 3 is not static inside the internal cavity 2.

[0026] Module 1 comprises 4 electrical cells arranged in the internal cavity 2.

[0027] Module 1 includes at least one diverter device 18, 26, 33, 39 suitable for diverting the heat transfer fluid 3 into the internal cavity 2. The diverter device 18, 26, 33, 39 is suitable for orienting the heat transfer fluid 3. This orientation is such that the heat transfer fluid 3 moves around the cells 4.

[0028] First, a first X axis is defined, extending along a first extension direction of module 1. Second, a second transverse Y axis is defined. perpendicular to the X axis. Finally, a transverse stacking Z axis is defined, perpendicular to the X and Y axes.

[0029] Thus, thermal management is optimal. As it moves around the cells 4, the temperature of the heat transfer fluid 3 gradually increases. Referring to [Fig. 1], without a deflector device, the temperature at opposite points A1 and B1 is virtually identical. The temperature at a point C1 located at the center of a cell 4 is much higher than that of points A1 and B1 located on opposite slices 5 of the cell 5 along the X-axis, because the heat transfer fluid 3 has not had time to heat up since it moves on either side of the cell 4. In [Fig. 2], module 1 includes a deflector device 18, 26, 33, 39. The temperature at a point B2 on slice 5 is then higher than the temperature at a point A2 on slice 5 and opposite to point B2 along the X axis because the heat transfer fluid has gradually increased in temperature as it moves around cell 4.This allows for less abrupt thermal management. As a result, cell 4 becomes more efficient.

[0030] Advantageously, module 1 includes a fluidic channel 6. The fluidic channel 6 is located around the cells 4 and the heat transfer fluid 3 flows in said fluidic channel 6. The diverter device 18, 26, 33, 39 is arranged in the fluidic channel 6.

[0031] Thus, it becomes possible to direct the heat transfer fluid 3 in a given direction.

[0032] Advantageously, module 1 comprises: - a lower wall 7, - an upper wall not shown in the drawings, - a first lateral wall 8 connecting the lower wall to the upper wall, - a second lateral wall 9 opposite the first lateral wall 8 and connecting the lower wall 7 to the upper wall, - a proximal wall 10 integral with the lower wall 7, the upper wall, the first lateral wall 8 and the second lateral wall 9, - a distal wall 11 opposite the proximal wall 10 and attached to the lower wall 7, the upper wall, the first lateral wall 8 and the second lateral wall 9.

[0033] The walls 7, 8, 9, 10, 11 and the upper wall together define the internal cavity 2.

[0034] Advantageously, the cells 4 comprise a stack of electrodes distinct from one another and separated from each other by a porous separator film. The electrodes are stacked along the stacking Z-axis. The electrical cells 4 are arranged one on top of the other and in direct contact with each other so as to form at least one column 12, 21, 28, 34 extending along the stacking Z-axis. The fluidic channel 6 is located on one side between the lateral, proximal, distal walls 8, 9, 10, 11, and on the other side the column 12, 21, 28, 34 of cells 4.

[0035] Such an architecture allows for thermal management of each electrode of each cell 4. Indeed, this arrangement allows the heat transfer fluid 3 to come as close as possible to each electrode of each of the cells 4 of module 1. The heat transfer fluid 3 thus comes into contact with the periphery of each of the electrodes. This architecture therefore allows for precise thermal management of each electrode. Such precision in thermal management significantly increases the performance of module 1 and therefore of the battery, by allowing operation under optimal thermal conditions through precise and fine-tuned temperature control of each of the electrodes.

[0036] The electrodes and the electrolyte are advantageously packaged in a flexible, airtight bag.

[0037] Such an architecture allows for optimal thermal management.

[0038] According to a first embodiment shown in [Fig.2], the module comprises a first column 12 of cells 4.

[0039] The first column 12 comprises: - a first face 13 opposite the proximal wall 10, - a second face 14 opposite the first face 13 and opposite the distal wall 11, - a third face 15 opposite the first lateral wall 8, and - a fourth face 16 opposite the third face 15.

[0040] The module includes a first deviator device 18. The first deviator device 18 extends along the Z-axis from the lower wall 7 to the upper wall. The first deviator device 18 extends along the Y-axis from the proximal wall 10 to the first column 12. The first deviator device 18 extends substantially in line with the fourth face 16.

[0041] Module 1 includes a heat transfer fluid inlet 3. The inlet 19 is adjacent to the first diverter device. The inlet 19 is arranged opposite the first face 13.

[0042] The first diverter device 18 is in the form of a continuous wall. By "continuous", it is understood that the first diverter device 18 does not include any openings and thus does not allow the heat transfer fluid 3 to pass through it.

[0043] Thus the heat transfer fluid 3 is directed along the first face 13 then the third face 15 then the second face 14 and finally along the fourth face 16. The temperature of the heat transfer fluid 3 rises gradually in contact with the first column 12. The thermal management is thus less abrupt, which improves the performance of the electrical cells 4.

[0044] Advantageously, and with reference to Figures 4 and 5, Module 1 may include at least one additional odd-numbered column 21 of cells. "Odd-numbered" means that the additional column is the first, third, fifth column, and so on, moving along the X-axis and excluding the first column 12. The at least one additional odd-numbered column 21 is arranged between the first column 12 and the second lateral wall 9. However, the at least one additional odd-numbered column 21 is not immediately adjacent to the second lateral wall 9.

[0045] A column of cells immediately adjacent to the second lateral wall 9, whether it is located next to the first column 12 or to an additional even or odd column 21, 28, is called the end column.

[0046] The at least one additional odd-numbered column 21 comprises: - a fifth face 22 opposite the proximal wall 10, - a sixth face 23 opposite the fifth face 22 and opposite the distal wall 11, - a seventh face 25 substantially perpendicular to the fifth face 22 and the sixth face 23 and located on the side of the first lateral wall 8, - an eighth face 46 opposite the seventh face 25 and located on the side of the second lateral wall 9.

[0047] Module 1 advantageously comprises a second deflector device 26. The second deflector device 26 extends along the stacking Z-axis from the lower wall 7 to the upper wall.

[0048] The second deviator device 26 extends from the distal wall 11 to the additional odd column 21 substantially in the continuation of the seventh face 25 and along the Y axis.

[0049] Thus, at least a portion of the heat transfer fluid 3 is directed along the seventh face 25 and continues its path around the cells 4. The path of the heat transfer fluid 3 closely resembles that of a coil or a slalom. The temperature of the heat transfer fluid 3 thus rises gradually upon contact with the cells 4. Thermal management is therefore less abrupt, which improves the performance of the electrical cells 4.

[0050] Advantageously the second diverter device 26 includes fluidic passages 27.

[0051] Thus the heat transfer fluid 3 is partly directed along the sixth face 23.

[0052] Advantageously, module 1 may comprise at least one additional column of 28 pairs of cells. By "pair," it is understood that the additional column of 28 pairs is the second, fourth, sixth column, and so on, moving along the X-axis and excluding the first column. The at least one The additional even column 28 is arranged between the additional odd column 21 and the second lateral wall 9. However, at least one additional even column 28 is not immediately adjacent to the second lateral wall 9. As previously mentioned, a column immediately adjacent to the second lateral wall 9 is an end column.

[0053] The at least one additional paired column 28 comprises: - a ninth face 29 opposite the proximal wall 10, - a tenth face 30 opposite the ninth face 29 and opposite the distal wall 11, - an eleventh face 31 substantially perpendicular to the ninth face 29 and the tenth face 30 and located on the side of the first lateral wall 8, - a twelfth face 32 opposite the eleventh face 31 and located on the side of the second lateral wall 9.

[0054] Module 1 advantageously comprises a third deflector device 33. The third deflector device 33 extends along the stacking Z-axis from the lower wall 7 to the upper wall.

[0055] The third deviator device 33 extends from the proximal wall 10 to the additional paired column 28 substantially in the continuation of the eleventh face 31 and along the Y axis.

[0056] Thus, at least a portion of the heat transfer fluid 3 is directed along the eleventh face 31 and continues its path around the cells 4. The path of the heat transfer fluid 3 closely resembles that of a coil or a slalom. The temperature of the heat transfer fluid 3 thus rises gradually upon contact with the cells. Thermal management is therefore less abrupt, which improves the performance of the electrical cells.

[0057] Advantageously the third diverter device 33 includes fluidic passages 27.

[0058] Thus the heat transfer fluid 3 is partly directed along the ninth face 29.

[0059] Advantageously, as previously mentioned, module 1 may include an end column 34. The end column 34 is immediately adjacent to the second lateral wall 9. The first column 12 is not an end column. The end column 34 comprises: - a thirteenth face 35 opposite the proximal wall 10, - a fourteenth face 36 opposite the thirteenth face 35 and opposite the distal wall 11, - a fifteenth face 37 substantially perpendicular to the thirteenth face 35 and the fourteenth face 36, - a sixteenth face 38 opposite the fifteenth face 37 and opposite the second lateral wall 9.

[0060] In what follows, a distinction is made according to whether the module comprises an even or odd total number of columns of cells.

[0061] With reference to Figures 3 and 5, when module 1 comprises an even total number of cell columns, said module 1 includes a fourth deflecting device 39. The fourth deflecting device 39 extends along the stacking Z-axis from the lower wall 7 to the upper wall. The fourth deflecting device 39 extends from the distal wall 11 to the end column 34 substantially in line with the fourteenth face 36 and along the Y-axis.

[0062] Thus, the heat transfer fluid 3 is directed along the fourteenth face 36 so that said heat transfer fluid 3 can continue its path around the cells. The path of the heat transfer fluid 3 is essentially reminiscent of that of a coil or a slalom. The temperature of the heat transfer fluid 3 thus rises gradually in contact with the cells. Thermal management is therefore less abrupt, which improves the performance of the electrical cells

[0063] With reference to Figure 5, when module 1 comprises an odd total number of cell columns, this total number being greater than 1, said module comprises a fourth deflecting device 39. The fourth deflecting device 39 extends along the stacking Z-axis from the lower wall 7 to the upper wall. The fourth deflecting device 39 extends from the proximal wall 10 to the end column 34 substantially in line with the fourteenth face 36 and along the Y-axis.

[0064] Thus, the heat transfer fluid 3 is directed along the fourteenth face 36 so that said heat transfer fluid 3 can continue its path around the cells. The path of the heat transfer fluid 3 is essentially reminiscent of that of a coil or a slalom. The temperature of the heat transfer fluid 3 thus rises gradually. Thermal management is therefore less abrupt, which improves the performance of the electrical cells

[0065] The fourth deflector device 39 is in the form of a continuous wall.

[0066] This allows the entire heat transfer fluid 3 to be directed towards an orifice 40 of exit.

[0067] Advantageously, a length of the heat transfer fluid flow 3 measured between the inlet orifice and the outlet orifice is less than or equal to five meters.

[0068] The length of the flow is determined by measuring the path taken by the heat transfer fluid 3.

[0069] Such a length allows for efficient and functional thermal management within the module. In particular, it allows for maintaining a sufficient heat transfer coefficient to cool the module.

[0070] The invention advantageously relates to a thermal management system 41 comprising the module 1 described above.

[0071] The thermal management system comprises a closed fluidic circuit 44. The fluidic circuit is in fluidic connection with the inlet port 19 and with the outlet port 40.

[0072] The thermal management system 41 includes a dielectric fluid circulating in the fluidic circuit. The dielectric fluid is a heat transfer fluid.

[0073] The thermal management system 41 includes means 42 for measuring the temperature of the dielectric liquid. These measuring means are, for example, temperature sensors.

[0074] The thermal management system 41 includes a pump 43 suitable and intended to move the dielectric liquid in the fluidic circuit 44.

[0075] The thermal management system 41 includes a computer control device 45 capable of receiving temperature data from the temperature measurement means 42. The computer control device 45 is capable of controlling the pump 43 in order to modify the flow rate of the dielectric fluid in the fluidic circuit according to the temperature data.

[0076] Such a thermal management system makes it possible to achieve optimal thermal regulation so that the electrical cells operate optimally, resulting in better overall performance. In particular, this thermal management system ensures good temperature homogeneity between the cells and reduces premature aging of said cells.

Claims

Demands

1. Electrical module (1) comprising an internal cavity (2) intended to be filled with a moving heat transfer fluid (3), said module (1) comprising a plurality of electrical cells (4) arranged in the internal cavity (2), said module (1) comprising at least one deflector device (18, 26, 33, 39) capable of directing the heat transfer fluid (3) in the internal cavity (2) so that said heat transfer fluid (3) moves around said cells (4).

2. Module (1) according to claim 1 wherein, it comprises a fluidic channel (6) situated around the cells (4), the heat transfer fluid (3) being able to circulate in said fluidic channel (6), module (1) wherein at least one diverter device (18, 26, 33, 39) is arranged in the fluidic channel.

3. Electrical module (1) according to any one of claims 1 or 2, wherein it comprises: - a lower wall (7), - an upper wall opposite the lower wall (7), - a first lateral wall (8) connecting the lower wall (7) to the upper wall, - a second lateral wall (9) opposite the first lateral wall (8) and connecting the lower wall (7) to the upper wall, - a proximal wall (10) integral with the lower wall (7), the upper wall, the first lateral wall (8) and the second lateral wall (9), - a distal wall (11) opposite the proximal wall (10) and integral with the lower wall (7), the upper wall, the first lateral wall (8) and the second lateral wall (9), the lower wall (7), upper wall, first lateral wall (8), second lateral wall (9), proximal wall (10) and distal wall (11), together defining the cavity (8) internal.

4. Module (1) according to any one of the preceding claims, wherein the cells (4) comprise a stack of electrodes distinct from one another and separated by a porous separator film, said electrodes being stacked along a stacking axis (Z), module (1) wherein the electrical cells (4) are arranged one on top of the other and in direct contact with each other so as to form at least one column (12, 21, 28, 34) which extends along the axis (Y) of stacking of the electrodes of said cells (4), module (1) in which the fluidic channel (6) is located on the one hand between the proximal, distal, lateral walls and on the other hand at least one column (12, 21, 28, 34) of cells (4).

5. Module (1) according to claim 4, wherein the first column comprises: - a first face (13) opposite the proximal wall (10), - a second face (14) opposite the first face (13) and opposite the distal wall (11), - a third face (15) opposite the first lateral wall (8), and - a fourth face (16) opposite the third face (15), module (1) wherein this comprises a first deflector device (18) extending along the stacking axis (Z) from the lower wall (7) to the upper wall on the one hand and from the proximal wall (10) to the first column (12) substantially in line with the fourth face (16),module in which it includes an inlet orifice (19) substantially adjacent to the first diverter device (18) so that the heat transfer fluid (3) is directed along the first face (13) then the third face (15) then the second face (14) then the fourth face (16) of said first column (12).

6. Module (1) according to claim 5, wherein it comprises at least one additional odd-numbered column (21) of cells arranged between the first column (12) and the second lateral wall (9), the at least one additional odd-numbered column (21) comprising: - a fifth face (22) opposite the proximal wall (10), - a sixth face (23) opposite the fifth face (22) and opposite the distal wall (11), - a seventh face (25) substantially perpendicular to the fifth face (22) and the sixth face (23) and located on the side of the first lateral wall (8), - an eighth face (46) opposite the seventh face (25) and located on the side of the second lateral wall (9), module (1) in which, this includes a second deflector device (26) which extends along the stacking axis (Z) from the lower wall (7) to the upper wall on the one hand and - from the distal wall (11) to the additional odd column (21) substantially in the extension of the seventh face (25), so that the heat transfer fluid (3) is directed at least in part along the seventh face (25).

7. Module according to claim 6 in which the second diverting device (26) has fluidic passages (27) intended to allow the heat transfer fluid (3) to be partly directed along the sixth face (23).

8. Module (1) according to any one of claims 6 or 7, wherein it comprises at least one additional paired cell column (28) arranged between the first column (12) and the second lateral wall (9), the at least one additional paired column (28) comprising: - a ninth face (29) opposite the proximal wall (10), - a tenth face (30) opposite the ninth face (29) and opposite the distal wall (11), - an eleventh face (31) substantially perpendicular to the ninth face (29) and the tenth face (30) and situated on the side of the first lateral wall (8), - a twelfth face (32) opposite the eleventh face (31) and situated on the side of the second lateral wall (9), module (1) wherein,This includes a third deflecting device (33) which extends along the stacking axis (Z) from the lower wall (7) to the upper wall on the one hand and - from the proximal wall (10) to the additional even column (28) substantially in line with the eleventh face (31), so that the heat transfer fluid (3) is directed at least partly along the eleventh face (31).

9. Module (1) according to claim 8 in which the third diverting device (33) has fluidic passages (27) intended to allow the heat transfer fluid (3) to be partly directed along the ninth face (29).

10. Module (1) according to any one of claims 5 to 9, wherein it comprises a column (34) of end cells

11.

12.

13.

14. immediately adjacent to the second lateral wall (9), the end column (34) comprises: - a thirteenth face (35) opposite the proximal wall (10), - a fourteenth face (36) opposite the thirteenth face (35) and opposite the distal wall (11), - a fifteenth face (37) substantially perpendicular to the thirteenth face (35) and to the fourteenth face (36), - a sixteenth face (38) opposite the fifteenth face (37) and facing the second lateral wall (9), module (1) in which the total number of cell columns is even, said module (1) includes a fourth deflector device (39) which extends along the stacking axis (Z) from the lower wall (7) to the upper wall on the one hand and from the distal wall (11) to the end column (34) substantially in line with the fourteenth face (36), so that the heat transfer fluid (3) is directed along the fourteenth face (36) or module (1) in which the total number of cell columns is odd greater than 1, said module (1) includes a fourth deflector device (39) extending along the stacking axis (Z) from the lower wall (7) to the upper wall on one side and from the proximal wall (10) to the end column (34) substantially in line with the fourteenth face (36), so that the heat transfer fluid (3) is directed along the fourteenth face (36). Module (1) according to claim 10 in which, the fourth deflector device (39) is continuous. Module (1) according to any one of claims 5 to 11 in which, a length of the flow of heat transfer fluid (3) measured between the inlet orifice (19) and the outlet orifice (40) is less than or equal to five meters. Module (1) according to any one of the preceding claims, wherein the cells (4) comprise electrodes and an electrolyte packaged in a hermetically sealed flexible bag. Thermal management system (41) comprising module (1) according to any one of the preceding claims, said system (41) comprising: - a closed fluidic circuit (44), - a heat transfer fluid (3) which is a dielectric liquid suitable for circulating in the fluidic circuit (44), - means (42) for measuring the temperature of the dielectric liquid, - a pump (43) suitable and intended to set the dielectric fluid in motion in the fluidic circuit (44), - a computer management device (45) capable of receiving data from the means (42) of temperature measurement and capable of controlling the pump (43).

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