High-voltage battery

Abstract

High-voltage battery (1) for use in vehicles, comprising a housing (2), a plurality of battery cells (3), and a cooling plate (4, 13, 16, 17, 18) through which coolant flows, wherein the battery cells (3) are in thermal contact with the cooling plate (4, 13, 16, 17, 18), and the battery cells (3) and at least a portion of the cooling plate (4, 13, 16, 17, 18) are arranged inside the housing (2), wherein the cooling plate (4, 13, 16, 17, 18) has an inlet port (7, 10, 20, 27) and an outlet port (8, 11, 14, 21, 23, 25, 26, 28), characterized in that the cooling plate (4, 13, 16, 17, 18) is connected by a wall of the housing (2) is guided.

Description

Technical field

[0001] The invention relates to a high-voltage battery for use in vehicles, comprising a housing, a plurality of battery cells, and a cooling plate through which coolant flows, wherein the battery cells are in thermal contact with the cooling plate, and the battery cells and at least a portion of the cooling plate are arranged inside the housing, the cooling plate having an inlet port and an outlet port. It further relates to a vehicle with such a high-voltage battery. State of the art

[0002] Electric and hybrid vehicles use high-voltage batteries to store energy. Since these high-voltage batteries generate a considerable amount of heat, they must be cooled. In current technology, cooling plates are integrated into the battery housing of the high-voltage batteries, through which a coolant flows. The battery cells are in thermally conductive contact with the cooling plates, allowing the heat from the battery cells to be dissipated via the cooling plates.

[0003] These cooling plates are cooled by a coolant, in particular cooling water (water-glycol mixture) or refrigerant (R134a, 1234YF). If a leak occurs in the cooling plates themselves or in one of the supply lines, the battery cells can come into electrical contact via the coolant. This can lead to short circuits. It can also cause an electrolysis process, which can produce hydrogen, an undesirable outcome.

[0004] The cooling plates used, in accordance with the state of the art, each have an inlet and an outlet connection through which the coolant is supplied and removed, respectively. The cooling plates are interconnected by a hose or pipe system. Both connections are located inside the battery housing.

[0005] Particularly in an accident situation, leaks can occur, primarily at the connection points, which can lead to further damage to the high-voltage battery or the entire vehicle.

[0006] A particular disadvantage of the prior art cooling plates is that the coolant connections to the individual cooling plates and the connections between the cooling plates are located inside the battery housing. Every connection element, and thus every connection point of the coolant lines, represents a potential point of leakage.

[0007] DE 10 2008 010 837 A1 discloses a battery with a heat-conducting plate arranged in a battery housing for temperature control of the battery, wherein several electrically parallel and / or series connected individual cells are thermally connected to the heat-conducting plate and are attached to it on the top and / or bottom side. Description of the invention, problem, solution, advantages

[0008] Therefore, the object of the present invention is to provide a high-voltage battery in which the risk of further damage is reduced even in the event of leaks, particularly as a result of accidents.

[0009] The object of the present invention is achieved by a high-voltage battery with the features according to claim 1.

[0010] One embodiment of the invention relates to a high-voltage battery for use in vehicles, comprising a housing, a plurality of battery cells and a cooling plate through which coolant flows, wherein the battery cells are in thermal contact with the cooling plate and the battery cells and at least a part of the cooling plate are arranged inside the housing, wherein the cooling plate has an inlet connection and an outlet connection, and wherein the cooling plate is guided through a wall of the housing.

[0011] The connections referred to here are the inlet and outlet connections, which are connected to the cooling plates and supply or discharge the coolant to the cooling plates.

[0012] In the case not according to the invention, where a cooling plate is arranged completely inside the housing of the high-voltage battery, at least one of the connections is led through an opening in a wall of the housing in order to create a connection between the cooling plate and the coolant circuit running outside the housing.

[0013] Positioning the inlet and outlet connections of the cooling plate outside the housing reduces the risk of leakage at the connection points with the coolant circuit in close proximity to the battery cells. This reduces the risk of short circuits and electrolysis. For this purpose, the cooling plate is dimensioned to penetrate the housing of the high-voltage battery. The inlet and outlet connections are therefore made to the cooling plate outside the housing. In the event of an accident, any leakage resulting from damage to the inlet or outlet will occur outside the housing. This prevents the battery cells from coming into contact with the coolant.

[0014] This risk is also minimized by an arrangement of inlet and outlet connections that are guided through an opening in the housing, provided that they are designed in such a way that, even in an accident situation, the areas of the connections located inside the housing are not damaged.

[0015] The greatest risk of leakage stems from the coolant supply and return lines, as well as the connections between the cooling plates. The cooling plates themselves are designed to provide a sufficiently high level of protection against leaks, even in the event of an accident.

[0016] Connecting lines arranged inside the housing are therefore advantageously designed in such a way that relative movement to the cooling plate is not possible as long as the structural integrity of the housing is ensured.

[0017] It is also advisable if the housing has at least one opening through which the cooling plate and / or one of the connections can be routed.

[0018] The cooling plate can be inserted through the opening and connected to a coolant circuit outside the housing. Alternatively, a connection can be routed through this opening to connect the cooling plate, located inside the housing, to the coolant circuit.

[0019] Furthermore, it is preferable if a seal is arranged around the opening to provide a fluid-tight seal for the interior of the housing.

[0020] Sealing the housing opening prevents coolant from entering the housing if a leak occurs outside. This further reduces the risk of short circuits and electrolysis.

[0021] In a particularly advantageous embodiment of the invention, it is provided that the cooling plate is in fluid communication with a coolant circuit via its inlet connection and its outlet connection.

[0022] By connecting the cooling plates to a coolant circuit, the heat generated by the battery cells can be continuously dissipated via the coolant circulating in the cooling plate. This prevents the battery cells from overheating.

[0023] Furthermore, it is advantageous if the battery cells are arranged on one or both surfaces of the cooling plate.

[0024] Arranging the battery cells on both surfaces of the cooling plate allows a larger number of battery cells to be in thermal contact with each cooling plate. Depending on the available cooling capacity, a greater amount of heat can be dissipated per cooling plate than when the battery cells are arranged on only one surface.

[0025] In an alternative embodiment, it is preferable if the cooling plate is arranged with one of its surfaces on an inner wall of the housing and the battery cells are arranged on the surface opposite this surface.

[0026] This arrangement of the cooling plate inside the housing is particularly advantageous with regard to the stability of the cooling plate, as it is supported against one of the inner walls of the housing. This makes relative movement between the cooling plate and the housing more difficult. The risk of leakage is thus reduced.

[0027] Furthermore, it is preferable if a battery management system for controlling and / or regulating the high-voltage battery is arranged within the housing of the high-voltage battery.

[0028] The battery management system is also advantageously located inside the housing. This protects it from coolant leaks and allows it to be cooled by the cooling effect of the cooling plates.

[0029] A preferred embodiment of the high-voltage battery is characterized in that the high-voltage battery has a plurality of cooling plates which are connected in series or in parallel to a coolant circuit.

[0030] By arranging multiple cooling plates, a larger number of battery cells can be actively cooled. This allows for more battery cells to be arranged in the high-voltage battery.

[0031] In an alternative embodiment, it is preferable if the cooling plates are in fluid communication with each other via connecting lines.

[0032] Directly connecting multiple cooling plates creates a simple network through which the coolant flows. When arranging the connecting lines within the housing, care must be taken to design the individual connection points so that they will not be damaged even in an accident. This applies as long as the structural integrity of the housing is maintained.

[0033] It is also advantageous if a large proportion of the battery cells are in thermal contact with one or more cooling plates.

[0034] The more battery cells are in thermal contact with the cooling plate(s), the better the heat generated can be dissipated from the high-voltage battery. Overall, this improves the efficiency of the high-voltage battery by achieving and maintaining a favorable temperature level.

[0035] In a preferred embodiment of the invention, a vehicle with a high-voltage battery according to one of the described configurations is advantageous.

[0036] The high-voltage battery according to the invention is particularly advantageous for use in vehicles, since the arrangement of the coolant lines and the inlet and outlet connections minimizes the risk of short circuits or electrolysis resulting from contact between the coolant and the battery cells. The high-voltage battery according to the invention offers particular advantages in accident situations, which must be considered during vehicle design.

[0037] Advantageous embodiments of the present invention are described in the dependent claims and the following description of the figures. Brief description of the drawings

[0038] The invention will now be explained in detail using exemplary embodiments and with reference to the drawings. The drawings show: Fig. 1 a section through a housing of a high-voltage battery, with a cooling plate which has a plurality of battery cells, Fig. 2 a top view of a cooling plate in a housing of a high-voltage battery, wherein the cooling plate has a plurality of battery cells, Fig. 3. The left part shows a sectional view through an alternative embodiment of the invention, with a plurality of cooling plates inside the housing, and the right part shows a side view of the housing. Fig. 4. In the left part, a sectional view through an alternative embodiment of the invention, with a cooling plate, wherein the connections are guided through openings in the housing at two opposite points, and in the right part a side view of the housing. Fig. 5 in the left part a sectional view through an alternative embodiment of the invention, with two cooling plates inside the housing which are connected to each other via a connecting line, and in the right part a side view of the housing, Fig. 6 in the left part a sectional view through an alternative embodiment of the invention, with a cooling plate inside the housing which is guided through two opposing openings of the housing, and in the right part a side view of the housing, Fig. 7 in the left part a sectional view through an alternative embodiment of the invention, with two cooling plates inside the housing, each of which is guided through a lateral opening of the housing and is connected in the outer area by a connecting line, furthermore in the right part a side view of the housing, and Fig. Figure 8 shows a sectional view of an alternative embodiment of the invention in the left part, with two cooling plates inside the housing, each of which is guided through an opening in a wall of the housing, and a side view of the housing in the right part. Preferred embodiment of the invention

[0039] The Fig. Figure 1 shows a section through the midplane of a high-voltage battery 1. The high-voltage battery 1 consists of a housing 2. Battery cells 3 are arranged in the housing 2. To dissipate the heat generated by the battery cells 3, the battery cells 3 are in thermal contact with a cooling plate 4. This cooling plate 4 is partially located inside the housing 2 and extends through an opening 6 in the housing 2.

[0040] A seal 5 is attached around the opening 6, which seals the housing 2 fluid-tight to the outside.

[0041] The cooling plate 4 has an inlet connection 7, which is located outside the housing 2 of the high-voltage battery 1.

[0042] The arrangement of the inlet connection 7 outside the housing 2 is particularly advantageous, as this arrangement significantly minimizes the occurrence of leaks in the coolant circuit, especially at the connection points.

[0043] In particular, contact between the coolant flowing through the cooling plate 4 and the battery cells 3 must be avoided. In the worst case, a short circuit or unwanted electrolysis could occur. If electrolysis occurs, hydrogen can be produced. This can lead to a system failure and further damage to the high-voltage battery 1.

[0044] The cooling plate 4 is designed in such a way that no leaks occur at its base body even in an accident situation, and thus the interior of the housing 2 of the high-voltage battery 1 always remains leak-free.

[0045] In the fully assembled state, the inlet port 7 is connected to a coolant circuit which supplies coolant to the cooling plate 4. This coolant circuit is shown in the diagram. Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 to Fig. 8 not shown.

[0046] The structure in Fig. Figure 1 is exemplary. An arrangement of several cooling plates 4 and a larger number of battery cells 3 is just as conceivable as an alternative design of the housing 2. The position of the cooling plate 4 in the housing 2 is also to be considered exemplary. For example, it is also conceivable to place the cooling plate 4 in the center of the housing 2 so that both surfaces of the cooling plate 4 can be equipped with battery cells 3.

[0047] With a plurality of cooling plates 4, a connection of the individual cooling plates 4 to each other is possible both in a series circuit and in a parallel circuit.

[0048] The Fig. Figure 2 shows a top view of the cooling plate 4 inside the housing 2 of the high-voltage battery 1. It can be seen that the battery cells 3 are arranged in two parallel rows on one of the surfaces of the cooling plate 4. This arrangement is also exemplary and can be replaced by other arrangements of the battery cells 3 in alternative embodiments. For example, patterns resembling a wave pattern or an irregular arrangement on the cooling plate 4 are conceivable.

[0049] Furthermore, it can be seen that on the part of the cooling plate 4 located outside the housing 2, in addition to the inlet port 7, an outlet port 8 is also arranged. The cooling plate 4 is connected to the coolant circuit via these ports 7 and 8.

[0050] The cooling plate 4 of the Fig. 1 and Fig. 2 has a U-shaped flow path. This means that the cooling plate 4 has a deflection inside it, at which the coolant, coming from the inlet port 7, is deflected in its flow direction so that it flows to the outlet port 8.

[0051] In addition to the cooling plate 4, a battery management system 9 is integrated into the housing 2. This battery management system 9 serves to control and regulate the high-voltage battery 1. The arrangement of the battery management system 9 within the housing 2 is particularly advantageous because the battery management system 9, as well as the battery cells 3, should not be directly exposed to the coolant.

[0052] Furthermore, it is advantageous that by arranging the battery management system 9 inside the housing 2, the battery management system 9 is also cooled by the cooling effect emanating from the cooling plate 4.

[0053] In alternative embodiments, it is equally foreseeable that the battery management system 9 is also applied directly to one of the cooling plates 4.

[0054] The configuration of the high-voltage battery 1, as described in the Fig. 1 and Fig. As shown in Figure 2, this is particularly advantageous with regard to the susceptibility of the coolant line to leakage. Since inlet and outlet lines, as well as connecting pieces between individual cooling plates 4, are particularly prone to leakage, it is preferable to always route these leakage-prone areas outside the sensitive area of ​​the battery cells 3 and the battery management system 9. Ideally, the leakage-prone areas are therefore located outside the housing 2.

[0055] The Fig. Figure 3 shows another advantageous configuration of a high-voltage battery 1. The cooling plates 13 differ from those shown. Fig. 1 and Fig. The cooling plates 13 are no longer dimensioned in such a way that they protrude through an opening 6 in the housing 2 of the high-voltage battery 1. The cooling plates 13 are arranged completely inside the housing 2.

[0056] The coolant supply and discharge are achieved via inlet connection 10 and outlet connection 11. Inlet and outlet connections 10 and 11 are located in the Fig. 3 formed by pipes, each of which leads out of the housing 2 to the outside through an opening 6. A seal 12 is fitted around each opening 6 in the housing 2, which seals the interior of the housing 2 fluid-tight.

[0057] In the Fig. Figure 3 shows a configuration of a high-voltage battery in which three cooling plates 13 are arranged in the housing 2. The battery cells 3 are arranged between the cooling plates 13 and are in thermal contact with them.

[0058] In the embodiment shown, the uppermost and the lowermost cooling plates 13 are in contact with the inner walls of the housing 2. In alternative embodiments, free positioning of the cooling plates 13 in the housing 2 is also possible.

[0059] The cooling plates 13 are connected to each other by connecting lines 15, so that the coolant can flow into the lowest cooling plate 13 via the inlet connection 10, then via the connecting line 15 into the middle cooling plate 13, then via the second connecting line 15 into the upper cooling plate 13 and out of the housing 2 of the high-voltage battery 1 through the outlet connection 11.

[0060] In the right part of the Fig. Figure 3 shows a side view of the housing 2. In particular, the sealing area 12 is shown, through which the inlet connection 10 is routed.

[0061] The Fig. Figure 4 shows an alternative embodiment of the high-voltage battery 1 in its left part. Here, a single cooling plate 16 is arranged in the housing 2, which is connected to a coolant circuit via an inlet port 10 and an outlet port 14. Both ports 10 and 14 are designed as pipes in the shown case.

[0062] The connection of the terminals 10, 14 with the cooling plate 16 is designed in such a way that even in an accident situation, the connection points on the cooling plate 16 do not break and leaks do not occur.

[0063] The in Fig. The cooling plate 16 shown in section 4 has an i-shaped flow pattern through it.

[0064] In the right part of the Fig. Figure 4 also shows an exterior view of housing 2. It corresponds to the right part of the Fig. 3. In the illustrated embodiment, both the view of the inlet connection 10 and the outlet connection 14 are identical.

[0065] The Fig. 5 also shows how the following Fig. 6, Fig. 7 to Fig. 8 cooling plates 4 each, which are guided either on one side or on both sides through an opening 6 of the housing 2 of the high-voltage battery 1.

[0066] In the exemplary embodiment of the Fig. Two cooling plates 4 are arranged in 5, each guided through an opening 6 of the housing 2. A seal 5 is arranged around each of these openings 6, sealing the interior of the housing 2 in a fluid-tight manner.

[0067] The lower cooling plate 4 has an inlet connection 20 and the upper cooling plate 4 has an outlet connection 21. Both the inlet connection 20 and the outlet connection 21 are located in areas of the cooling plates 4 that lie outside the housing 2.

[0068] Inside the housing 2, the two cooling plates 4 are connected to each other by a connecting line 22. The configuration of the connections 20, 21 and the connecting line 22 results in an i-shaped flow pattern through both cooling plates 4.

[0069] The battery cells 3 are each in thermal contact with both cooling plates 4 and are thus cooled from two sides. In alternative arrangements, battery cells can also be arranged separately on the upper and lower cooling plates 4.

[0070] The lower cooling plate 4 is in direct contact with one of the inner walls of the housing 2, while the upper cooling plate 4 is freely positioned within the housing 2. The positioning of the cooling plates 4 within the housing 2 is essentially unrestricted and can be aligned with the desired configuration of the high-voltage battery.

[0071] This applies to all shown Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 to Fig. 8. Cooling plates 4, 13 which are not arranged directly on one of the inner walls of the housing 2 are advantageously positioned firmly in the housing 2 by means of support elements.

[0072] The connecting line 22 is advantageously designed so that it is not damaged even in an accident situation. For this purpose, it is advantageous if the upper cooling plate 4 and the lower cooling plate 4 are fixed in the housing 2 with the connecting line 22, for example by support elements, in such a way that no relative movement of the elements to each other is possible as long as the structural integrity of the housing 2 is ensured.

[0073] This applies to all illustrated embodiments that have connecting lines inside the housing 2. These include the Fig. 3 and Fig. 5.

[0074] The right part of the Fig. Figure 5 shows a side view looking at the side of the housing, which has two openings 6 through which the cooling plates 4 are guided.

[0075] The sealing area 5 is shown, which surrounds the cooling plate 4 and thus seals the housing 2 fluid-tight to the outside.

[0076] Connections 20 and 21 are in the Fig. The connections 5 extend upwards from the cooling plates 4. The positioning of connections 20 and 21 is, in principle, arbitrary and can also be on another surface, including the side surfaces of cooling plate 4. This applies to all connections 7, 8, 10, 11, 14, 20, 21, 23, 25, 26, 27, 28 and connecting lines 15, 22, 24 of the cooling plates 4, 13, 16, 17, and 18 shown here.

[0077] The Fig. Figure 6 shows an alternative design of a high-voltage battery 1. The housing 2 is similar to that in... Fig. Figure 4 shows a cooling plate 18 guided through side openings 6.

[0078] In the illustrated embodiment, the cooling plate 18 is permeated by fluid flow. The areas of the cooling plate 18 located outside the housing 2 have an inlet connection 20 and an outlet connection 23. The openings 6 of the housing are sealed fluid-tight with seals 5.

[0079] Inside the housing, on the cooling plate 18, 2 battery cells 3 are arranged, which are in thermal contact with the cooling plate 18.

[0080] In the right part of the Fig. Figure 6 shows a side view of the housing 2. The seal 5, which surrounds the cooling plate 18 and seals the housing 2 to the outside, is particularly visible. One of the connections 20, 23 is also shown. The sides of the housing 2, which have the openings 6, are identical.

[0081] The Fig. Figure 7 shows another alternative embodiment of a high-voltage battery 1. In the embodiment shown, two cooling plates 4 are arranged such that they each pass through an opening 6 in the housing. A seal 5 is arranged around each of the openings 6.

[0082] The lower cooling plate 4 is arranged on one of the inner walls of the housing 2. The upper cooling plate 4 is shown in a free position within the housing 2. Battery cells 3 are arranged between the two cooling plates 4 and are in thermal contact with both cooling plates 4.

[0083] On the areas of the cooling plates 4 outside the housing 2, an inlet connection 20 is arranged on the lower cooling plate 4 and an outlet connection 25 on the upper cooling plate 4. The two cooling plates 4 are further connected to each other by a connecting line 24.

[0084] The configuration shows that the cooling plates 4 are both connected in a U-shape. The coolant is conveyed from one cooling plate 4 to the other cooling plate 4 via the connecting line 24.

[0085] The right part of the Fig. Figure 7 shows a view of the side of the housing, which has the opening 6 through which the cooling plate 4 is guided.

[0086] It can be clearly seen here that the connections 20, 25 are located on one side of the cooling plates 4 and the connecting line 24 is located on the opposite side of the cooling plates 4.

[0087] The Fig. Figure 8 shows another alternative embodiment of a high-voltage battery 1. Here, two individual cooling plates 4 are arranged in the housing 2 such that they each pass through an opening 6 in the housing 2. The arrangement of the cooling plates 4 corresponds to the arrangement of the Fig. 7.

[0088] In contrast to Fig. In section 7, the upper cooling plate 4 and the lower cooling plate 4 are not connected to each other. Each cooling plate 4 is individually connected to a coolant circuit. For this purpose, the lower cooling plate 4 has an inlet connection 20 and an outlet connection 26. The upper cooling plate 4 has an inlet connection 27 and an outlet connection 28.

[0089] The arrangement of the connections is in the right part of the Fig. 8, shown in a view of the side of the housing 2 which has the openings 6.

[0090] For all shown Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 to Fig. Section 8 states that the inlet and outlet connections serve as inlet and outlet, respectively, for the coolant. However, reverse flow is also possible. In this case, the inlet connections become outlet connections and vice versa.

[0091] To prevent contact between the battery cells 3 and the coolant, the cooling plates 4, 13, 16, 17, 18 are designed so that the part located inside the housing 2 is insensitive to external forces as long as the structural integrity of the housing 2 itself is still ensured.

[0092] The same applies to the connecting lines 15, 22, which are located inside the housing 2. Furthermore, the elements that penetrate the housing wall, i.e., the inlet and outlet connections 10, 11, 12, must be designed in such a way that damage to the part located outside the housing 2 does not lead to coolant entering the housing 2.

Claims

[1] High-voltage battery (1) for use in vehicles, comprising a housing (2), a plurality of battery cells (3) and a cooling plate (4, 13, 16, 17, 18) through which coolant flows, wherein the battery cells (3) are in thermal contact with the cooling plate (4, 13, 16, 17, 18) and the battery cells (3) and at least a part of the cooling plate (4, 13, 16, 17, 18) are arranged inside the housing (2), wherein the cooling plate (4, 13, 16, 17, 18) has an inlet port (7, 10, 20, 27) and an outlet port (8, 11, 14, 21, 23, 25, 26, 28), characterized by , that the cooling plate (4, 13, 16, 17, 18) is guided through a wall of the housing (2). [2] High-voltage battery (1) according to claim 1, characterized by , that the housing (2) has at least one opening (6) through which the cooling plate (4, 17, 18) is guided. [3] High-voltage battery (1) according to claim 2, characterized by, that a seal (5, 12) is arranged around the opening (6) for fluid-tight sealing of the interior of the housing (2). [4] High-voltage battery (1) according to any one of the preceding claims, characterized by , that the cooling plate (4, 13, 16, 17, 18) is in fluid communication with a coolant circuit via its inlet port (7, 10, 20, 27) and its outlet port (8, 11, 14, 21, 23, 25, 26, 28). [5] High-voltage battery (1) according to any one of the preceding claims, characterized by that the battery cells (3) are arranged on one or both surfaces of the cooling plate (4, 13, 16, 17, 18). [6] High-voltage battery (1) according to any one of the preceding claims, characterized by , that the cooling plate (4, 13, 16, 17, 18) is arranged with one of its surfaces on an inner wall of the housing (2) and the battery cells (3) are arranged on the surface opposite this surface. [7] High-voltage battery (1) according to any one of the preceding claims, characterized by , that a battery management system (9) is arranged within the housing (2) of the high-voltage battery (1) for controlling and / or regulating the high-voltage battery (1). [8] High-voltage battery (1) according to any one of the preceding claims, characterized by , that the high-voltage battery (1) has a plurality of cooling plates (4, 13, 16, 17, 18) which are connected in series or in parallel to a coolant circuit. [9] High-voltage battery (1) according to claim 8, characterized by , that the cooling plates (4, 13, 17) are in fluid communication with each other via connecting lines (15, 22, 24). [10] High-voltage battery (1) according to claim 7, characterized by , that a large proportion of the battery cells (3) are in thermal contact with one or more cooling plates (4, 13, 16, 17, 18). [11] Vehicle with a high-voltage battery (1) according to any of the preceding claims.

Images