Housing for a battery pack and method for manufacturing such a housing

Abstract

To develop a housing for storing a battery pack therein.SOLUTION: A battery pack includes: a plurality of battery cells, especially prism type battery cells or pouch type battery cells; and a housing wall 12 made of plastic for laterally surrounding a storage chamber for the battery pack 11, which extends in the circumferential direction and is preferably injection molded. The housing wall 12 is formed by incorporating a winding body 19, as a reinforcement structure, consisting of (at least) a wound continuous fiber strand in the housing wall.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates in particular to a housing for accommodating a battery pack having a plurality of cuboid cells, and a method for manufacturing such a housing. Furthermore, the present invention relates to an assembly consisting of such a housing and a battery pack accommodated therein, and a method for manufacturing such an assembly.

[0002] For example, high-power battery packs used in the automotive field, electric transportation equipment field or aircraft field greatly elongate during the charging and discharging processes. This is due to the elongation process of the individual battery cells mounted on the battery pack, and is also referred to as swelling. This characteristic increases with the aging of the cells. Since such battery packs are usually protected from external influences, a large force acts on each wall portion of the housing disposed therein during swelling. In order to counter such forces, steel plates or die-cast parts are used in such battery packs. However, steel or metal is not only relatively expensive as a raw material, but also has a relatively large weight. In addition, the cost increases for the shaping required within the scope of manufacturing.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Starting from this, the problem of the present invention is to develop a housing and an assembly of the type described at the beginning, as well as corresponding methods for manufacturing such a housing and an assembly.

Means for Solving the Problems

[0004] This problem is solved by a housing having the features of claim 1, an assembly having the features of claim 15 , and a manufacturing method having the features of claim 21 or 23 .

[0005] Accordingly, the present invention provides a housing for housing a battery pack, preferably for electric transport equipment or electric aircraft, comprising: a plurality of battery cells and a housing wall made of plastic that laterally surrounds a circumferentially extending, preferably injection-molded, particularly substantially rectangular parallelepiped housing chamber for a battery pack, wherein the housing wall incorporates a winding body made of (at least) wound continuous fiber strands as a reinforcing structure.

[0006] The battery cells in a battery pack may be so-called prism-type battery cells, which typically have a roughly rectangular shape and each have a shape-stable or solid metal housing. However, other types of battery cells, such as pouch-type battery cells, may also be used, in which case, for example, a flexible aluminum-based foil may be used as the casing or jacket.

[0007] Accordingly, the present invention first provides a housing for a large or high-power battery pack, in which case housing members made of steel or other metals for preventing or limiting the expansion of the battery pack can be omitted. Rather, the housing can be manufactured entirely from plastic, except for the windings which should not be made from plastic or plastic fibers. This leads to considerable advantages of the present invention, such as low weight and economical metal costs and processing costs within the scope of manufacturing the housing.

[0008] In this case, preferably, the winding body incorporated into the housing wall may be a (winding) hollow body adapted to the shape of the circumferentially extending housing wall, having individual windings that circumferentially circulate within the circumferentially extending housing wall.

[0009] Regarding the containment chamber, it can be defined at the bottom by a base surface that serves as the mounting surface for the battery pack.

[0010] In this case, the windings of the winding body provided within the housing wall can preferably be routed parallel to or substantially parallel to the bottom surface.

[0011] The bottom surface can similarly extend perpendicularly or substantially perpendicularly to the circumferentially extending housing wall.

[0012] According to the present invention, the winding body can preferably be covered or surrounded in particular entirely by injection molding of plastic, while forming the housing wall.

[0013] More preferably, the housing may have a bottom wall, preferably injection-molded, which is particularly integrally bonded to a housing wall extending in the circumferential direction, and the bottom wall may preferably be used as the mounting surface of the housing.

[0014] A cooling member can be incorporated into the housing, preferably at the bottom or bottom region of the housing, to dissipate heat from the battery cells located within the housing, and a coolant can be guided through the cooling member.

[0015] In this case, the cooling member may have a base made of plastic and a particularly plate-shaped heat conductor liquid-tightly bonded to the base, wherein the heat conductor is made of a material having a higher thermal conductivity than the plastic of the base, particularly a plastic or metal having a higher thermal conductivity, and the heat conductor has an inner surface adjacent to the coolant chamber of the cooling member that transfers heat from the heat conductor to the coolant located in the coolant chamber, and an outer surface that transfers heat from the battery cell to the heat conductor, particularly an outer surface facing or adjacent to a housing chamber for the battery cell.

[0016] In this case, the aforementioned selective bottom surface defining the containment chamber can be used as a mounting surface for the battery pack, and the bottom surface can be formed by the outer surface of the cooling member, particularly the plate-shaped heat conductor.

[0017] Furthermore, one or more walls of the cooling member, particularly the base of the cooling member, can be integrally coupled to a circumferentially extending housing and / or the bottom wall of the housing.

[0018] Regarding the base of the cooling member, the base of the cooling member has a plurality of walls defining a coolant chamber, and at least one of these walls can be liquid-tightly bonded to a heat conductor in a bonding region, and in particular, the bonding can be such that the coolant does not escape from the coolant chamber to the outside through the bonding region.

[0019] The housing, preferably a cooling member, particularly a substrate, may further have an inlet and an outlet, through which a coolant can be supplied to the cooling member, or through which the coolant can be discharged from the cooling member, and the inlet and outlet are coupled to a coolant chamber to guide the liquid.

[0020] The substrate may preferably be an injection-molded article made of a fiber-reinforced plastic, or more preferably a thermoplastic resin.

[0021] Furthermore, the base has a bottom wall, which has a side wall that is particularly upright, extending in an annular shape, preferably integrally bonded to the bottom wall, and which surrounds the coolant chamber on the outside, and the upper surface of the side wall is particularly liquid-tightly bonded to a plate-shaped heat conductor, so that the inner surface of the heat conductor faces the bottom wall and the outer surface of the heat conductor faces the housing chamber for the battery pack.

[0022] The substrate may have, within a chamber enclosed by side walls, at least one particularly upright substrate wall, preferably integrally bonded to the bottom wall and side walls, extending between the bottom wall and the heat conductor, the upper surface of which is similarly liquid-tightly bonded to the heat conductor.

[0023] In this case, the substrate and the heat conductor can be liquid-tightly bonded to each other by shape connection and / or force connection and / or material connection.

[0024] Regarding the above-described incorporation of the cooling member into the housing, particularly into the bottom region of the housing, it can be assumed that the cooling member is placed in the housing inner chamber defined or surrounded by the housing bottom wall and the housing wall extending in the circumferential direction.

[0025] In this case, the bottom wall of the base body can be arranged in particular in contact with the bottom wall of the housing, on it or on the side of the bottom wall of the housing facing the inside of the housing.

[0026] Preferably, the bottom wall of the base body of the cooling member can be directly adjacent to or in contact with the bottom wall of the housing.

[0027] The bottom wall of the base body can be joined to the bottom wall of the housing by form-fit and / or material connection and / or force connection.

[0028] Regarding the continuous fiber strand for manufacturing the winding body, the continuous fiber strand can consist of or include aramid fibers and / or carbon fibers and / or glass fibers embedded in a matrix of a thermosetting or thermoplastic plastic material or polymer material.

[0029] In order to manufacture such a housing as described in detail above, according to the present invention, at least the following steps are carried out. a) A step or process of winding a continuous fiber strand consisting of or including in particular aramid fibers and / or carbon fibers and / or glass fibers embedded in a matrix of a thermosetting or thermoplastic plastic material or polymer material to form a winding body, in order to later manufacture a circumferentially extending housing wall that can laterally surround the accommodation chamber for the battery pack. b) A step or process of manufacturing a circumferentially extending housing wall that can laterally surround the battery pack by injection molding with plastic in an injection molding device to particularly completely surround or cover the winding hollow body.

[0030] According to a preferred development of this method, the following further steps can be performed. a) A process for manufacturing a cooling member base for dissipating heat from a battery pack located within a housing, which is made of fiber-reinforced plastic in particular, having a wall portion that forms a coolant chamber and at least one bonding surface that bonds in particular to a plate-shaped heat conductor, particularly by injection molding, b) A step of preparing a heat conductor, particularly a plate-shaped one, having at least one bonding surface provided to bond to the bonding surface of a substrate, c) A process to form a cooling member by joining a heat conductor and a substrate by bringing their bonding surfaces into contact with each other and bonding them liquid-tight by shape connection and / or force connection and / or material connection, d) A process in which, in an injection molding apparatus, a circumferentially extending housing wall is manufactured by covering or surrounding a cooling member and a winding hollow body by injection molding, and a particularly integral joint of the circumferentially extending housing wall and the cooling member is manufactured.

[0031] Preferably, in an injection molding apparatus, one of the bottom walls of the housing, or the aforementioned bottom wall, can be injection molded simultaneously with or in the same injection molding process as the circumferentially extending housing wall.

[0032] According to the present invention, further ,before An assembly is provided comprising such a housing as defined in the description, and a battery pack housed within the housing, that is, in the housing chamber of the housing, the battery pack having a group of battery cells, particularly prism-type battery cells or pouch-type battery cells, arranged in rows adjacent to each other.

[0033] The assembly may preferably have at least two separate spacers, particularly made of plastic, wherein the first spacer is positioned between a first housing wall portion of a circumferentially extending housing wall and a first surface of the battery pack located at the first end of the battery pack, and the second spacer is positioned between a second housing wall portion on the side opposite to the first housing wall portion and a second battery pack surface located at another second end of the battery pack, opposite to the first end.

[0034] Each spacer can preferably be preloaded between the housing wall portion to which the spacer is attached and the battery pack surface to which the spacer is attached, thereby applying a force to each surface of the battery pack that acts in the direction of each other battery pack end via each spacer, thereby preventing or reducing the expansion of the battery pack.

[0035] In this case, each spacer can directly contact the corresponding housing wall portion and / or the corresponding battery pack surface.

[0036] Preferably, each spacer can be made to conform to the shape of the corresponding housing wall portion and / or the corresponding battery pack surface.

[0037] Regarding the ends of the battery pack associated with the spacers, these ends can each be formed by (exclusively) the first or last battery cell of a row of battery cells arranged side by side.

[0038] In order to manufacture such an assembly as described in detail, according to the present invention, at least the following steps or processes are performed. a) A process or step to later manufacture a circumferentially extending housing wall that later surrounds a battery pack housing chamber, by winding continuous fiber strands, particularly aramid fibers and / or carbon fibers and / or glass fibers, embedded in a matrix of thermosetting or thermoplastic plastic or polymer material, to form a wound hollow body as a reinforcing structure. b) A process or step comprising inserting a wound hollow body into an injection molding machine while forming a housing chamber, and subsequently manufacturing a circumferentially extending housing wall that laterally surrounds the housing chamber for the battery pack by injection molding of plastic, thereby enclosing or covering the wound hollow body in particular entirely. c) A process or step of inserting a battery pack into a housing chamber that is laterally surrounded by housing walls.

[0039] According to a preferred development of this manufacturing method, the battery pack can be inserted into the housing chamber together with two separate spacers, particularly made of plastic, so that the first spacer is positioned between the first housing wall portion of the housing wall and the first surface of the battery pack, which is located at the first end of the battery pack, and the second spacer is positioned between the second housing wall portion of the housing wall, which is on the side opposite to the first housing wall portion, and the second surface of the battery pack, which is located at another second end on the side opposite to the first end of the battery pack.

[0040] Each spacer can be preloaded between the housing wall portion to which it corresponds and the battery pack surface to which it corresponds, thereby exerting a force on each surface of the battery pack acting in the direction of each other battery pack end via each spacer, thereby preventing or reducing the expansion of the battery pack.

[0041] In this case, the battery pack can be inserted into the housing chamber along with both spacers, which are then preloaded and pressed against the aforementioned surfaces of the battery pack.

[0042] Further features of the present invention will become apparent from the appended claims, the following description of preferred embodiments of the invention, and the appended drawings. [Brief explanation of the drawing]

[0043] [Figure 1] A perspective view shows a winding body for a housing according to the present invention. [Figure 2] A similar perspective view shows a housing with a circumferentially extending housing wall, which is injection-molded and incorporates the winding body shown in Figure 1. [Figure 3] The housing shown in Figure 2 is similarly shown in perspective view, with one spacer on each of the two housing end faces on opposite sides. [Figure 4] Figure 3 is a partial cross-sectional view of the housing. [Figure 5] This is an enlarged view of part I in Figure 4. [Figure 6] Figure 3 shows the housing with the battery pack located inside. [Figure 7] Figure 6 is a (longitudinal) cross-sectional view of a housing with a battery pack. [Figure 8] A housing similar to the one shown in Figure 2 is shown in an exploded view, but with the cooling components incorporated into the housing. [Figure 9] The housing shown in Figure 8 is illustrated in a cross-sectional view, along with the cooling element incorporated into the bottom region of the housing. [Modes for carrying out the invention]

[0044] Figures 6 and 7 show an assembly according to the present invention, which consists of a housing 10 according to the present invention and a rectangular parallelepiped-shaped battery pack 11 placed inside it.

[0045] The housing 10 has a storage chamber 14 for a battery pack 11, which is defined laterally by a circumferentially extending, upright housing wall 12 that surrounds the storage chamber 14, and below by a bottom wall 13 having a bottom surface 13a that extends in a plane perpendicular to the circumferentially extending housing wall 12. In this embodiment, the bottom surface 13a is used as the mounting surface for the battery pack 11. The circumferentially extending housing wall 12, together with the bottom wall 13, forms a tank-like component.

[0046] The battery pack 11 consists of individual battery cells 15, arranged in a row, which in this embodiment are prism-shaped or rectangular parallelepiped-shaped. In this case, the battery cells 15 are arranged in a row, and in this case, directly adjacent battery cells 15 are adjacent to and in contact with each other. At the first end of the battery pack 11, the first end face 20a of the battery pack 11 is formed by the first battery cell 15a in the row, and at the opposite end, the second end face 20b of the battery pack 11 is formed by the last battery cell 15b in the row.

[0047] In this embodiment, the battery cells 15 are oriented so that the large surface areas of adjacent battery cells 15 are in contact with each other within the row.

[0048] As is typical, the individual battery cells 15 are electrically coupled to each other to form a battery pack 11.

[0049] Each battery cell 15 expands during operation, and in this embodiment, each expands perpendicular to the large surface area of ​​the side of the battery cell 15. This so-called expansion of individual battery cells 15, without countermeasures, results in a corresponding spatial expansion of the entire battery pack 11 perpendicular to each end face 20a, 20b, leading to a shortened service life of the battery pack 11.

[0050] To prevent or limit expansion, the battery pack 11 is preloaded and positioned within the housing 10. In this embodiment, this is achieved by positioning spacers 18a and 18b, respectively, with excess dimensions or preloaded, between the housing end walls 16a and 16b of the housing 10, which are spaced apart from each other or located at opposite ends of the housing or dwelling chamber, and the corresponding or opposing battery pack end faces 20a and 20b, respectively, formed by the circumferentially extending housing wall 12.

[0051] The forces generated during the expansion process, originating from the battery pack 11 or end faces 20a, 20b, are transmitted accordingly to the opposing housing end walls 16a, 16b via spacers 18a, 18b.

[0052] The circumferentially extending housing walls 12 or housing end walls 16a, 16b, in particular their shape and spacing from one another, and the shape of the spacers 18a, 18b, are adjusted to match the battery pack 11 or its end faces 20a, 20b, and especially their shape and spacing from one another, in order to transmit the appropriate force to the housing end walls 16a, 16b as uniformly as possible.

[0053] In this embodiment, the spacers 18a and 18b are formed in a wedge shape (conical shape). On each side facing the respective housing end walls 16a and 16b, the spacers 18a and 18b are formed with a curve, at least in general, in this embodiment, specifically, they are curved in the same way as the inner surfaces of the housing end walls 16a and 16b that face the housing chamber 14. The spacers 18a and 18b abut against the inner surfaces, respectively.

[0054] Regarding the circumferentially extending housing walls 12 and bottom wall 13 of the housing 10, in this embodiment, they are manufactured from plastic by injection molding.

[0055] Therefore, it is particularly important that the circumferentially extending housing wall 12 is additionally reinforced by a reinforcing structure consisting of continuous fiber strands, that is, by a winding body 19 configured as a hollow body. The winding body 19 is located above and below or on the bottom surface 13 a It has individual windings (not shown) of continuous fiber strands that are circulating in a direction perpendicular to the direction.

[0056] In this case, the outer shape of the winding body 19 is adapted to the shape of the circumferentially extending housing wall 12, when each (closed) winding encircles the housing wall that extends completely circumferentially once.

[0057] In this embodiment, the wound coil 19 is placed in the injection molding apparatus as an insert within the manufacturing range of the housing wall 12, and thereafter surrounded or covered by injection molding of injection-molded plastic.

[0058] Preferably, the winding body 19 is (completely) surrounded by injection molding, but this is not essential.

[0059] In the illustrated embodiment, the winding 19 forms, for example, the inner surface of a circumferentially extending housing wall 12 facing the housing space 14. Furthermore, since the winding 19 can be completely incorporated into the circumferentially extending housing wall, the winding 19 is entirely surrounded by injection-molded plastic.

[0060] Such a winding 19 can be manufactured, in particular, by a robot. The robot winds a continuous fiber strand, made of a suitable material, for example, a temporarily flexible and hardened material, around a core and then removes it from the core.

[0061] Preferably, the continuous fiber strand consists of continuous glass fibers embedded in a matrix of thermosetting or thermoplastic plastic or polymer material. The strand may include, for example, glass fibers and / or aramid fibers and / or carbon fibers.

[0062] In specific examples of suitable continuous fiber strands, the continuous fiber strand may include, for example, glass fibers embedded in a PP matrix having a volume fraction of fibers of 30% to 38%, preferably 34%.

[0063] From a manufacturing technical standpoint, after the manufacture of the circumferentially extending housing wall 12 having a winding body 19 incorporated into the housing wall 12, and possibly in the same injection molding process, the bottom surface 13 a After the manufacturing of the housing wall having the spacers 18a and 18b, the battery pack 11 is inserted into the housing chamber 14 of the housing 10 by applying a pressing force to the battery pack 11 together.

[0064] As explained in detail at the beginning, the housing 10 may also have a cooling member, which is not shown in Figures 1 to 7, and the cooling member can guide a cooling liquid that contributes to cooling the battery cells 15 of the battery pack 11.

[0065] Figures 8 and 9 show a housing 10' having such a cooling member 21, in which case the housing 10' largely coincides with the housing 10. The differences from the housing 10 will be described below.

[0066] The cooling member 21 has a tank-shaped base 22 made of plastic and injection-molded, and the base 22 has a bottom wall 22a and, in this embodiment, a circumferentially extending (upright) side wall 22b integrally bonded to the bottom wall 22a.

[0067] Furthermore, the cooling member 21 has a thermal conductor 23, which is particularly plate-shaped and made of aluminum in this embodiment, bonded to the base body 22. Moreover, the plate-shaped thermal conductor may be made of another metal or, in particular, a thermally conductive plastic.

[0068] The substrate 22 and the heat conductor 23 together form a coolant chamber (or surround the coolant). The coolant is guided through the coolant chamber.

[0069] In this embodiment, the coolant chamber is formed by individual coolant channels 24, which are defined laterally by upright channel walls 22c formed by the substrate, below by the bottom wall 22a of the substrate 22, and above by the heat conductor 23.

[0070] Cooling liquid can be supplied to the cooling member 21 or discharged from the cooling member 21 via the inlet 25 and outlet 26.

[0071] The cooling member 21 is incorporated into the bottom region of the housing 10'. For this purpose, in this embodiment, the cooling member 21 is positioned on the inside, in contact with, but not essentially, the bottom wall 13 of the housing 10'.

[0072] Specifically, the bottom wall 22a of the base 22 is placed on the bottom surface 13a of the bottom wall 13.

[0073] The heat conductor 23, specifically its outer surface, forms a mounting surface for the battery pack 11 that defines the housing chamber 14, while its inner surface is adjacent to the coolant chamber of the cooling member 21.

[0074] Accordingly, the heat dissipated from the battery pack 11 is directly transferred via the heat conductor 23 to the coolant located in the coolant chamber of the cooling member 21.

[0075] Naturally, without deviating from the fundamental concept of the present invention, various other forms of the housing and the windings incorporated therein as reinforcing structures can be realized. Therefore, at least theoretically, it is conceivable to introduce one or more windings only to the circumferentially extending portion of the housing wall that is actually subjected to expansion loads. This application relates to the invention described in the claims, but also includes the following other embodiments. 1. Multiple battery cells, particularly prism-type battery cells or pouch-type battery cells, A housing wall (12) made of plastic, extending circumferentially and preferably injection-molded, that laterally surrounds a housing chamber for a battery pack (11), wherein at least one winding body (19) made of wound continuous fiber strands is incorporated within the housing wall (12) as a reinforcing structure, A housing for a battery pack (11) that includes the following features. 2. The housing according to the present invention, characterized in that the winding body (19) incorporated within the circumferentially extending housing wall (12) is a hollow body at least partially adapted to the shape of the circumferentially extending housing wall (12), having a winding that circulates within the circumferentially extending housing wall (12). 3. The housing of the 2 described above, wherein the housing chamber is defined at the bottom by a bottom surface (13) used as a mounting surface for the battery pack (11), particularly a bottom surface (13) that extends perpendicularly or substantially perpendicularly to the circumferentially extending housing wall (12), and the windings of the winding body (19) are arranged within the housing wall (12) parallel to or substantially parallel to the bottom surface (13). 4. The housing according to 1 or 2, characterized in that the winding body (19) forms a housing wall (12) that extends in the circumferential direction, and the circumferential housing wall (12) is particularly entirely covered or surrounded by injection molding of plastic. 5. The housing is characterized by having a housing wall (12) that extends in the circumferential direction, and preferably an injection-molded bottom wall. 6. One or more housings according to 1 to 5 above, characterized in that the housing incorporates a cooling member, preferably in the bottom region of the housing, for dissipating heat from the battery cell (11) located in the housing chamber, and it is possible to guide a coolant through the cooling member. 7. The housing of 6, characterized in that the cooling member comprises a base made of plastic and a particularly plate-shaped heat conductor liquid-tightly bonded to the base, wherein the heat conductor is made of a material having a higher thermal conductivity than the plastic of the base, particularly a plastic or metal having a higher thermal conductivity, and the heat conductor has an inner surface adjacent to the coolant chamber of the cooling member that transfers heat from the heat conductor to the coolant located in the coolant chamber, and an outer surface that transfers heat from the battery cell (11) to the heat conductor, particularly an outer surface that faces or is adjacent to the housing chamber for the battery cell (11). 8. One or more housings according to 1 to 7, characterized in that a cooling member, particularly one or more wall portions of the base of the cooling member, are integrally bonded to a circumferentially extending housing wall (12) and / or to the bottom wall of the housing. 9. One or more housings according to 6 to 8, characterized in that the base of the cooling member has a plurality of walls defining a coolant chamber, and at least one of these walls is liquid-tightly bonded to a heat conductor in a bonding region, in particular, such that the bond prevents coolant from flowing out of the coolant chamber through the bonding region. 10. One or more housings according to 6 to 9, characterized in that the housing, preferably a cooling member, particularly a base, has an inlet and an outlet, and a coolant can be supplied to the cooling member through the inlet, or the coolant can be discharged from the cooling member through the outlet, and the inlet and outlet are coupled to a coolant chamber to guide the liquid. 11. One or more housings according to 6 to 10 above, characterized in that the base is an injection-molded article made of a particularly fiber-reinforced plastic, preferably a thermoplastic resin. 12. The base has a bottom wall, the bottom wall has a side wall that is particularly upright, extending in an annular shape, preferably integrally bonded to the bottom wall, and outwardly surrounds a coolant chamber, the upper surface of the side wall is liquid-tightly bonded in particular to a plate-shaped heat conductor, so that the inner surface of the heat conductor faces the bottom wall, and the outer surface of the heat conductor faces a housing chamber for the battery pack (11), while forming a bottom surface used as an installation surface for the battery pack (11) of the housing, one or more housings according to 6 to 11 above. 13. One or more housings according to 6 to 12, characterized in that the base has at least one particularly upright base wall extending between the bottom wall and a heat conductor, preferably integrally bonded to the bottom wall and side walls, within the chamber of the base, surrounded by side walls, and the upper surface of the base wall is similarly liquid-tightly bonded to the heat conductor. 14. One or more housings according to 6 to 13 above, characterized in that the substrate and the heat conductor are liquid-tightly bonded to each other by shape connection and / or force connection and / or material connection. 15. One or more housings according to 6 to 14, characterized in that a continuous fiber strand comprises aramid fibers and / or carbon fibers and / or glass fibers embedded in a matrix of thermosetting or thermoplastic plastic material or polymer material. 16. An assembly comprising one or more of the above 1 to 15 housings, and a battery pack (11) housed within the housing, having a group of battery cells, particularly prism-type battery cells or pouch-type battery cells, arranged in rows adjacent to each other. 17. The assembly of 16, characterized in that it comprises at least two separate spacers (18a, 18b) made particularly from plastic, wherein the first spacer (18a) is positioned between a first housing wall portion of a circumferentially extending housing wall (12) and a first surface of the battery pack (11) located at the first end of the battery pack (11), and the second spacer (18b) is positioned between a second housing wall portion of the circumferentially extending housing wall (12) on the side opposite to the first housing wall portion and a second battery pack surface located at another second end of the battery pack (11). 18. Each spacer (18a, 18b) is positioned with a preload between the housing wall portion corresponding to the spacer (18a, 18b) and the battery pack surface corresponding to the spacer, thereby applying a force to each surface of the battery pack (11) acting toward each of the different battery pack ends via each spacer (18a, 18b), thereby preventing or reducing the expansion of the battery pack (11), as described in the assembly of 17 above. 19. One or more assemblies of 17 to 18, characterized in that each spacer (18a, 18b) abuts against the corresponding housing wall portion and / or the corresponding battery pack surface. 20. The assembly of 19, characterized in that each spacer (18a, 18b) is conformed to the shape of the corresponding housing wall portion and / or the corresponding battery pack surface. 21. One or more assemblies of 17 to 20, characterized in that both ends of the battery pack (11), which are associated with the spacers (18a, 18b), are formed by the first or last battery cell in the row of battery cells. 22. In particular, in a method for manufacturing a housing for a battery pack (11) having one or more of the above 1 to 21 battery cells, preferably prism-type battery cells or pouch-type battery cells, the following: a) A process to manufacture a circumferentially extending housing wall (12) that can laterally surround a housing chamber for a battery pack (11), by winding continuous fiber strands, particularly aramid fibers and / or carbon fibers and / or glass fibers, embedded in a matrix of thermosetting or thermoplastic plastic or polymer material, to form a winding body (19); b) A process of manufacturing a circumferentially extending housing wall (12) that can surround the battery pack (11) laterally by injecting plastic into a plastic injection molding apparatus to completely cover or surround the winding body (19), A method for manufacturing a housing having [a certain characteristic]. 23. The following, another, a) A process of manufacturing a base for a cooling member for dissipating heat from a battery pack (11) located inside a housing, which is made of fiber-reinforced plastic in particular, and which has a wall portion that forms a coolant chamber and at least one bonding surface that bonds in particular to a plate-shaped heat conductor, particularly by injection molding, b) A step of preparing a heat conductor, particularly a plate-shaped one, having at least one bonding surface provided to bond to the bonding surface of a substrate, c) A step of forming a cooling member by joining a heat conductor and a substrate by bringing their bonding surfaces into contact with each other and bonding them liquid-tight by shape connection and / or force connection and / or material connection, d) A process in which a circumferentially extending housing wall (12) is manufactured by covering or surrounding the cooling member and the winding body (19) by injection molding in an injection molding apparatus, and a particularly integral joint between the circumferentially extending housing wall (12) and the cooling member is manufactured, The method described in 22 above, characterized by having the following. 24. In particular, in a method for manufacturing an assembly comprising a housing for housing a battery pack (11) having one or more of the above 16 to 21, preferably a plurality of prism-type battery cells or pouch-type battery cells, and a battery pack (11) housed in the housing having a group of battery cells, particularly prism-type battery cells or pouch-type battery cells, arranged in rows adjacent to each other, the following: a) A process to manufacture a circumferentially extending housing wall (12) that laterally surrounds a housing chamber for a battery pack (11), by winding continuous fiber strands, particularly aramid fibers and / or carbon fibers and / or glass fibers, embedded in a matrix of thermosetting or thermoplastic or polymer material, to form a winding body (19); b) A process comprising inserting a winding body (19) into an injection molding machine, and subsequently manufacturing a circumferentially extending housing wall (12) that laterally surrounds a housing chamber for a battery pack (11) by injection molding of plastic, thereby enclosing or covering the winding body (19) in particular. c) Inserting the battery pack (11) into the storage chamber, A method for manufacturing an assembly having [a certain characteristic]. 25. The method of 24, characterized in that a battery pack (11) is inserted into a housing chamber together with two separate spacers (18a, 18b) made particularly from plastic, so that the first spacer (18a) is then positioned between a first housing wall portion of a circumferentially extending housing wall (12) and a first surface of the battery pack (12) located at the first end of the battery pack (11), and the second spacer (18b) is positioned between a second housing wall portion of a circumferentially extending housing wall (12) on the side opposite to the first housing portion and a second battery pack surface located at another second end of the battery pack (11). 26. The method of 25 described above, characterized in that each spacer (18a, 18b) is positioned with a preload between the housing wall portion corresponding to the spacer (18a, 18b) and the battery pack surface corresponding to the spacer, thereby applying a force to each surface of the battery pack (11) acting in the direction of each different battery pack end via each spacer, thereby preventing or reducing the expansion of the battery pack (11). 27. The method of 25 or 26 described above, characterized in that the battery pack (11) is inserted into the housing chamber together with both spacers (18a, 18b) which are preloaded and pressed against the aforementioned surface of the battery pack (11) at that time. [Explanation of Symbols]

[0076] 10 Housing 10" Housing 11 Battery Packs 12 Housing walls extending in the circumferential direction 13 Bottom wall 13a Bottom 14 Confinement Rooms 15 battery cells 15a First battery cell 15b Last battery cell 16a Housing end wall 16b Housing end wall 18a Spacer 18b Spacer 19. Winding 20a End face battery pack 20b End face battery pack 21 Cooling component 22 Base 22a Bottom wall Base 22b Side wall base 22c Upright channel wall base 23. Thermal Conductors 24 Coolant Channels 25 Entrance 26 Exit

Claims

1. Multiple battery cells, A housing wall (12) made of plastic that extends circumferentially and laterally surrounds a housing chamber for a battery pack (11), wherein at least one winding body (19) made of wound continuous fiber strands is incorporated within the housing wall (12) as a reinforcing structure, Equipped with, A housing for a battery pack (11), wherein the winding body (19) incorporated within the circumferentially extending housing wall (12) is a hollow body conforming to the shape of the circumferentially extending housing wall (12), having a winding that circulates within the circumferentially extending housing wall (12).

2. The housing according to claim 1, wherein the housing chamber is defined at the bottom by a bottom surface (13a) used as a mounting surface for the battery pack (11), and the bottom surface (13a) extends perpendicularly to the circumferentially extending housing wall (12), and the windings of the winding body (19) are arranged within the housing wall (12) parallel to the bottom surface (13a).

3. The housing according to claim 1, characterized in that the winding body (19) is covered or surrounded by a circumferentially extending housing wall (12) by injection molding of plastic.

4. The housing according to any one of claims 1 to 3, characterized in that the housing has a bottom wall integrally connected to a housing wall (12) that extends in the circumferential direction.

5. The housing according to any one of claims 1 to 4, characterized in that a cooling member for dissipating heat from a battery pack (11) located in the housing chamber is incorporated in the bottom region of the housing, and a coolant can be guided through the cooling member.

6. The housing according to claim 5, wherein the cooling member comprises a base made of plastic and a heat conductor liquid-tightly bonded to the base, the heat conductor being made of a material having a higher thermal conductivity than the thermal conductivity of the plastic base, and the heat conductor having an inner surface adjacent to the coolant chamber of the cooling member which transfers heat from the heat conductor to the coolant located in the coolant chamber, and an outer surface which transfers heat from the battery pack (11) to the heat conductor and faces or is adjacent to a housing chamber for the battery pack (11).

7. The housing according to any one of claims 1 to 6, characterized in that one or more wall portions of the cooling member base are connected to a housing wall (12) extending in the circumferential direction and / or to the bottom wall of the housing.

8. The housing according to any one of claims 5 to 7, characterized in that the base of the cooling member has a plurality of walls defining a coolant chamber, and at least one of these walls is bonded to a heat conductor in a liquid-tight manner at the bonding region so that the coolant does not escape from the coolant chamber to the outside through the bonding region.

9. The housing according to any one of claims 5 to 8, characterized in that the base of the cooling member has an inlet and an outlet, and a coolant can be supplied to the cooling member through the inlet, or the coolant can be discharged from the cooling member through the outlet, and the inlet and outlet are coupled to a coolant chamber to guide the liquid.

10. The housing according to any one of claims 5 to 9, characterized in that the substrate is an injection-molded article made of fiber-reinforced plastic.

11. The housing according to any one of claims 5 to 10, wherein the base has a bottom wall, the bottom wall has a side wall that extends in an annular shape, is bonded to the bottom wall, and surrounds a coolant chamber on the outside, the upper surface of the side wall is liquid-tightly bonded to a heat conductor, so that the inner surface of the heat conductor faces the bottom wall and the outer surface of the heat conductor faces a housing chamber for a battery pack (11).

12. The housing according to any one of claims 5 to 11, characterized in that the substrate has a bottom wall and at least one substrate wall extending between the bottom wall and a heat conductor, which is coupled to the side walls and enclosed by side walls, and the upper surface of the substrate wall is similarly liquid-tightly coupled to the heat conductor.

13. The housing according to any one of claims 5 to 12, characterized in that the substrate and the heat conductor are liquid-tightly bonded to each other by shape connection and / or force connection and / or material connection.

14. The housing according to any one of claims 5 to 13, characterized in that the continuous fiber strands include aramid fibers and / or carbon fibers and / or glass fibers embedded in a matrix of thermosetting or thermoplastic plastic material or polymer material.

15. An assembly comprising a housing according to any one of claims 1 to 14, and a battery pack (11) housed within the housing, having a group of battery cells arranged in rows adjacent to each other.

16. The assembly according to claim 15, comprising at least two separate spacers (18a, 18b), wherein the first spacer (18a) is positioned between a first housing wall portion of a circumferentially extending housing wall (12) and a first surface of the battery pack (11) located at the first end of the battery pack (11), and the second spacer (18b) is positioned between a second housing wall portion of the circumferentially extending housing wall (12) on the side opposite to the first housing wall portion and a second battery pack surface located at another second end of the battery pack (11).

17. Each spacer (18a, 18b) is positioned with a preload between the housing wall portion corresponding to the spacer (18a, 18b) and the battery pack surface corresponding to the spacer, thereby applying a force to each surface of the battery pack (11) acting toward each of the different battery pack ends via each spacer (18a, 18b), thereby preventing or reducing the expansion of the battery pack (11), as described in claim 16.

18. The assembly according to claim 16 or 17, characterized in that each spacer (18a, 18b) abuts against the corresponding housing wall portion and / or the corresponding battery pack surface.

19. The assembly according to claim 18, characterized in that each spacer (18a, 18b) is conformed to the shape of the corresponding housing wall portion and / or the corresponding battery pack surface.

20. The assembly according to any one of claims 16 to 19, characterized in that both ends of the battery pack (11), which are respectively associated with the spacers (18a, 18b), are formed by the first or last battery cell in the row of battery cells.

21. A method for manufacturing a housing for a battery pack (11) having a plurality of battery cells according to any one of claims 1 to 14, wherein the following: a) A process to form a winding body (19) by winding continuous fiber strands embedded in a matrix of thermosetting or thermoplastic or polymer material in order to manufacture a circumferentially extending housing wall (12) that can laterally surround a housing chamber for a battery pack (11), b) A process of manufacturing a circumferentially extending housing wall (12) that can laterally surround the battery pack (11) by covering or surrounding the winding body (19) with plastic injection molding in an injection molding apparatus, A method for manufacturing a housing having [a certain characteristic].

22. The following, another, a) A step of injection molding a base body made of plastic for a cooling member to dissipate heat from a battery pack (11) located inside a housing, the base body having a wall portion that forms a coolant chamber and at least one bonding surface that bonds to a heat conductor, b) A step of preparing a heat conductor having at least one bonding surface provided to bond to the bonding surface of a substrate, c) A step of forming a cooling member by joining a heat conductor and a substrate by bringing their bonding surfaces into contact with each other and bonding them liquid-tight by shape connection and / or force connection and / or material connection, d) A process in which, in an injection molding apparatus, a housing wall (12) extending in the circumferential direction is manufactured by covering or surrounding the cooling member and the winding body (19) by injection molding, and a composite body of the housing wall (12) extending in the circumferential direction and the cooling member is manufactured, The method according to claim 21, characterized by having

23. A method for manufacturing an assembly comprising a housing for housing a battery pack (11) having a plurality of battery cells, as described in any one of claims 1 to 14, and a battery pack (11) housed in the housing having a group of battery cells arranged in rows adjacent to each other, wherein the following: a) A process to manufacture a circumferentially extending housing wall (12) that laterally surrounds a housing chamber for a battery pack (11), by winding continuous fiber strands embedded in a matrix of thermosetting or thermoplastic or polymer material to form a winding body (19), b) A process comprising inserting a winding body (19) into an injection molding apparatus, and subsequently manufacturing a circumferentially extending housing wall (12) that laterally surrounds a housing chamber for a battery pack (11) by injection molding of plastic, c) Inserting the battery pack (11) into the storage chamber, A method for manufacturing an assembly having [a certain characteristic].

24. The method according to claim 23, characterized in that a battery pack (11) is inserted into a housing chamber together with two separate spacers (18a, 18b), so that the first spacer (18a) is then positioned between a first housing wall portion of a circumferentially extending housing wall (12) and a first surface of the battery pack (12) located at the first end of the battery pack (11), and the second spacer (18b) is positioned between a second housing wall portion of a circumferentially extending housing wall (12) on the side opposite to the first housing portion and a second battery pack surface located at another second end of the battery pack (11).

25. The method according to claim 24, characterized in that each spacer (18a, 18b) is positioned with a preload between the housing wall portion corresponding to the spacer (18a, 18b) and the battery pack surface corresponding to the spacer, thereby applying a force to each surface of the battery pack (11) acting in the direction of each different battery pack end via each spacer, thereby preventing or reducing the expansion of the battery pack (11).

26. The method according to claim 24 or 25, characterized in that the battery pack (11) is inserted into the housing chamber together with both spacers (18a, 18b) which are preloaded and pressed against the aforementioned surface of the battery pack (11) at that time.

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