Cell housing for a prismatic battery cell for a high-voltage storage system for a motor vehicle

Abstract

The invention relates to a cell housing (10) for a prismatic battery cell (20) for a high-voltage storage device for a motor vehicle, comprising a receiving body (13) for receiving a battery structure (21) with two oppositely arranged side walls (11) and two oppositely arranged end walls (11) connecting these side walls (12).

Description

[0001] The invention relates to a cell housing for a prismatic battery cell for a high-voltage storage system for a motor vehicle, comprising a receiving body for receiving a battery structure with two opposing side walls and two opposing end walls connecting these side walls. The invention further relates to a prismatic battery cell for a high-voltage storage system for a motor vehicle, a cell pack for a high-voltage storage system for a motor vehicle, a high-voltage storage system for a motor vehicle, a method for manufacturing a cell housing for a prismatic battery cell for a high-voltage storage system for a motor vehicle, and a method for manufacturing a cell pack of battery cells for a high-voltage storage system for a motor vehicle.

[0002] High-voltage storage systems, also known as traction batteries or accumulators, are used to provide electrical energy for powering electric motors in motor vehicles. These high-voltage storage systems typically consist of an arrangement of battery cells connected in parallel and series via a contacting device, all housed within the storage unit's casing. The battery cells and the contacting device are typically encased in an adhesive structural foam to fill cavities, create a uniform structure, and thus ensure mechanical stability and rigidity, as well as thermal and / or electrical insulation.

[0003] Against this background, an object of the invention is to improve a high-voltage storage device for a motor vehicle. In particular, a battery cell, its housing and / or a cell pack is to be improved in order to enable improved assembly and / or improved robustness against bending or torsional loads.

[0004] This problem is solved by a cell housing for a prismatic battery cell for a high-voltage storage system for a motor vehicle with the features of claim 1, a prismatic battery cell for a high-voltage storage system for a motor vehicle with the features of claim 6, a cell pack for a high-voltage storage system for a motor vehicle with the features of claim 7, a high-voltage storage system for a motor vehicle with the features of claim 8, a method for manufacturing a cell housing for a prismatic battery cell for a high-voltage storage system for a motor vehicle with the features of claim 9, and a method for manufacturing a cell pack of battery cells for a high-voltage storage system for a motor vehicle with the features of claim 10. The dependent claims relate to advantageous embodiments of the invention.

[0005] According to a first aspect, a cell housing for a prismatic battery cell for a high-voltage storage device for a motor vehicle is specified, comprising a receiving body for receiving a battery structure with two opposing side walls and two opposing end walls connecting these side walls, wherein at least one end wall and / or side wall has at least one receiving tab.

[0006] The two side walls and the two end walls are arranged parallel to each other, with each side wall connected to two end walls at a joint or edge, and conversely, each end wall connected to two side walls at a joint or edge to form a rectangular or square cell housing or receiving body. A joint edge can be angled relative to a side wall and an end wall, for example, forming an angle of 135° with the side or end wall. Of course, other cross-sectional geometries, such as a hexagonal cross-section, are also conceivable, with a corresponding number of side walls and end walls and corresponding angles. The side and end walls are firmly connected to each other at the joints or edges, which are particularly parallel, to create a stable receiving space or receiving body.to form a stable cell housing. Depending on the embodiment, the end faces can be narrower, wider, or the same size as the side walls. The cell housing can have two open sides located at opposite ends. These open sides can be positioned either on narrow sides or at the ends of long sides. Through these open sides, an interior space bounded by the side and end walls can be accessed for arranging the battery structure. In some embodiments, at least one of these sides can be at least partially closed, particularly by the subsequent addition of another wall or plate.

[0007] By means of the cell housing or receiving body thus provided, a structurally rigid cladding or covering for the battery structure can be provided, whereby at the same time, a fastening or mounting option is provided by means of the at least one receiving tab, which can be used to arrange the battery cell(s) in or towards a cell pack. The receiving tab can be configured to receive a fastening rod in order to arrange the cell housing, in particular towards other, adjacent cell housings. Because the receiving tab is integrated with the cell housing, or...If a fastening device for a prismatic battery cell is provided, it can be made possible to arrange it in a cell pack, so that it can be pre-assembled and mechanically stiffened, in order to be able to be inserted, in particular functionally tested, into a housing of a high-voltage storage system for further assembly.

[0008] According to another aspect, a prismatic battery cell for a high-voltage storage system for a motor vehicle is proposed, comprising a cell housing as described herein. A prismatic battery cell is defined in particular by its essentially rectangular housing or outer geometry. The battery structure is housed within this essentially rectangular cell housing. The battery structure is, in particular, an electrode stack or electrode pack, which typically comprises at least one anode, at least one cathode, at least one separator, and at least one electrolyte, enabling a flow of ions between the electrodes (anode and cathode).Such a battery structure can, for example, have a so-called "stack configuration," in which the electrodes and separators are stacked in flat layers, or be designed as a "layered stack," in which the electrodes are stacked as flat plates within a rigid housing or the cell housing. In some embodiments, the battery structure can also be wound in a spiral structure or arranged in another configuration to be received by the cell housing. In an installation situation in a motor vehicle, the high-voltage storage system and / or the prismatic battery cells can be arranged such that the end and side walls and / or the butt joints or butt edges and / or a receiving direction of the at least one receiving tab of the cell housing or the battery cells are arranged parallel to a vehicle vertical.

[0009] The invention is based, among other things, on the idea of ​​integrating or designing an integrated arrangement or fastening device for prismatic battery cells in a cell housing, in order to provide a more robust, rigid cell assembly and / or simplified assembly. For this purpose, it is proposed to provide at least one receiving tab on the cell housing, in particular one receiving tab at each butt joint or butt edge, which is configured to receive a fastening rod and to form a connection with it, in particular a tolerance-controlled and / or positive-locking connection. The receiving tab is specifically configured to allow the fastening rod to be inserted into the receiving tab, particularly in its longitudinal direction, so that the fastening rod is at least partially encompassed by the receiving tab to form a connection in two spatial directions.To enable a substantially fixed relative arrangement of the mounting tab and the mounting rod to each other in a plane perpendicular to the mounting direction. This allows the mounting direction for the cell housing or the prismatic battery cell to be defined with respect to the mounting rod and / or the cell pack by means of at least one mounting tab, thereby improving the mounting and / or fastening of the cell housing or the battery cell in a cell pack.

[0010] The receiving tab has, in particular, a receiving geometry designed as a hollow cylinder, which can be surrounded by an outer geometry with a square or rectangular cross-section, wherein the at least one receiving tab is arranged outside a cross-section of the receiving body, or, in particular, outside the butt edges in the circumferential direction. This allows the receiving space, or the interior space bounded by the side and end walls, to be available for receiving the battery structure without geometric impairment.

[0011] In one embodiment, the at least one receiving tab is essentially tubular. The receiving tab can have a substantially circular inner cross-section to accommodate a fastening rod, which has a cylindrical geometry at least partially, either with tolerances or in a form-fit manner. Such a connection between the receiving tab and the fastening rod increases stability and prevents lateral displacement of the receiving tab or the cell housing relative to the fastening rod.

[0012] In one embodiment, the receiving tab runs parallel to a butt joint or butt edge of an end wall and a side wall. This allows the receiving tab to be slid onto a mounting rod parallel to the butt joint or butt edge, thereby enabling the arrangement of multiple cell housings and / or battery cells by means of several mounting rods provided parallel to each other and / or in a predetermined arrangement, thus enabling the formation of a cell pack.

[0013] In one embodiment, the receiving tab is arranged at a predetermined position along the joint line of an end wall and a side wall, wherein all receiving tabs of a cell housing have the same position at each joint line or joint edge, or can be arranged in the same plane. The receiving tab can be arranged at one of several predetermined positions, in particular four predetermined positions, along a longitudinal extension of the joint line or joint edge, offset from one another. The four predetermined positions can be adjacent to each other and, in particular, do not overlap. This makes it possible for receiving tabs of four adjacent cell housings or prismatic battery cells to be arranged on a mounting rod to form clusters of four cell housings or prismatic battery cells.To achieve uniform spacing of battery cells, the battery cells are arranged in such a way that they form a "honeycomb structure" and / or can support each other under load. Of course, more or fewer positions can also be provided, with the number of tab positions corresponding, in particular, to the number of walls of the cell housing.

[0014] The position(s) of the receiving tab(s) can be provided, in particular, by a material removal process on a receiving tab structure. For example, three-quarters of the receiving tab structure, especially with respect to a longitudinal extent of the receiving tab structure, can be removed or abraded, leaving one-quarter of the receiving tab structure as the receiving tab. This enables the production of identical parts, which can have a positive impact on production costs. Since the receiving tab structure or the receiving tab is formed, in particular, outside a cross-section of the cell housing or receiving body, such machining, especially by milling, can be made possible. In one embodiment, the cell housing is formed as an extruded profile and can be made of aluminum, with the receiving tab structure or the receiving tab being formed in a press or extrusion process.The extrusion direction is designed to run along the cell housing. This can improve and / or simplify the manufacturing of the cell housing or the provision of the profile groove on the receiving body of the cell housing. In other embodiments, the housing can be designed as an extruded profile and can be made of metal and / or plastic.

[0015] According to a further aspect, a cell pack for a high-voltage storage system for a motor vehicle is proposed, comprising at least one prismatic battery cell and / or a cell housing as described herein, wherein the at least one battery cell is arranged on at least one mounting rod by means of the at least one receiving tab. This allows the cell housing or the battery cell(s) to be slid onto the mounting tab in a longitudinal direction. A predetermined number of mounting rods, designed for connection with the at least one receiving tab, can be arranged, in particular, parallel and / or at a predetermined distance from one another, for example, in a number of parallel rows, in order to accommodate one, and in particular four, receiving tabs of four cell housings or battery cells each, particularly in a longitudinal direction.This allows battery cells to be arranged in a cell pack, where they can be adjacent to each other at their side and end walls. It can be provided that at least one heat exchanger for cell temperature control can be arranged, or is arranged, between the side and / or end walls of two adjacent battery cells. In some embodiments, the battery cells can be bonded to each other and / or to a heat exchanger at their adjacent side walls to further increase rigidity.

[0016] In some embodiments, the at least one mounting rod can have an insulating sheath that can at least partially or section by section enclose the mounting rod in order to provide electrical insulation from the at least one receiving tab, the cell housing, and / or the battery cell. Additionally or alternatively, an insulating layer can be formed on at least one inner circumference of the receiving tab; for example, hollow cylindrical insulating sleeves can be inserted into the receiving tab to ensure electrical insulation and / or a predetermined distance between adjacent battery cells in order to maintain air and / or creepage distances.

[0017] The longitudinally staggered arrangement of multiple mounting tabs for several cell housings or battery cells allows for a close proximity of the prismatic battery cells and a mechanical connection provided by the fastening rods. This improves the overall rigidity of the cell packing structure, as bending movement through the cell assembly is hindered or even blocked. Furthermore, the structural assembly of battery cells effectively counteracts torsional stress. This eliminates the need for foaming the cell packing, saving production time, costs, and weight. Additionally, it facilitates recycling and / or maintenance of the cell packing and / or battery cells.

[0018] According to a further aspect, a high-voltage storage device for a motor vehicle is proposed, comprising at least one cell pack described herein, at least one prismatic battery cell described herein, and / or comprising a cell housing described herein. The high-voltage storage device is, in particular, an energy storage device or a traction battery for a motor vehicle, which comprises several battery cells. A housing of the high-voltage storage device defines an internal storage space in which the battery cells are received or arranged. The prismatic battery cells are, in particular, arranged or provided in a packing arrangement or cell pack described herein.

[0019] According to a further aspect, a motor vehicle is proposed comprising a high-voltage storage device described herein, at least one cell pack described herein, at least one prismatic battery cell described herein, and / or at least one cell housing described herein. By means of a motor vehicle designed in this way, the effects and / or advantages regarding improved assembly, stiffness, and / or bending and / or torsional strength of the provided cell pack can be utilized.

[0020] According to a further aspect, a method for manufacturing a cell housing for a prismatic battery cell for a high-voltage storage system for a motor vehicle is proposed, comprising steps of providing an extruded profile or a polygonal profile with at least two opposing side walls and end walls, wherein at least one end wall and / or side wall has a receiving tab structure, and of removing at least a part of the receiving tab structure to form a receiving tab at a predetermined position. In a further step, the extruded profile can be cut to length or separated in the extrusion direction to provide a cell housing, in particular of a predetermined length or height.Here, a cross-section of the cell housing can be defined using an extrusion die, which defines the receiving tab structure, particularly at all four (butt) edges. In a second step, this extruded profile is cut to a predetermined length to provide a single cell housing or housings with a receiving space of predetermined dimensions for a battery structure. This allows for the cost-effective provision of a stable cell housing for simplified assembly of a cell pack.

[0021] In a further step, at least a section of the receiving tab structure, particularly its longitudinal extent, is removed, for example by milling, to create a receiving tab at a predetermined position along the butt joint or butt edge of an end wall and a side wall. This allows cell housings for battery cells to be provided which have receiving tabs at different positions, enabling them to be mounted offset from one another onto a mounting rod and assembled into a cell pack, whereby this connection can increase the stiffness of such a cell pack.

[0022] According to a further aspect, a method for manufacturing a cell pack of battery cells for a high-voltage storage device for a motor vehicle is specified, comprising steps of providing at least one fastening rod which is configured to cooperate with a receiving tab of a cell housing of a prismatic battery cell as described in particular herein, and of arranging at least one prismatic battery cell with a cell housing as described in particular herein having a receiving tab, to which at least one fastening rod is attached by means of the receiving tab.

[0023] For example, a battery cell can be slid onto correspondingly arranged mounting rods at its four edges using the respective mounting tabs located there, in order to provide a cell pack of prismatic battery cells. First, a cell housing or battery cell with a mounting tab at a first position, located at the bottom with respect to the sliding direction, can be positioned on a mounting rod. In a further step, a second cell housing or battery cell with a mounting tab at a second position, located below a center point with respect to the sliding direction, can be positioned on the mounting rod. In a further step, a third cell housing or battery cell can be attached.A battery cell with a mounting tab at a third position, positioned above the center of the mounting rod with respect to the sliding direction, and in a further step, a fourth cell housing or battery cell with a mounting tab at a fourth position, positioned at the top of the mounting rod with respect to the sliding direction, can be arranged. This allows four cell housings or battery cells to be fixed using a single mounting rod, with the mounting tabs axially offset and the cell housings or battery cells radially offset on the mounting rod. This reduces the number of components required to attach a cell pack to the battery cells, while simultaneously enabling the tensioning of the battery cells relative to each other to increase bending and / or torsional stiffness.

[0024] Further advantages and application possibilities of the invention will become apparent from the following description in conjunction with the figures. Fig. Figure 1 shows a schematic representation of a cell housing for a prismatic battery cell for a high-voltage storage device for a motor vehicle according to a first embodiment of the present invention. Fig. Figure 2 shows a schematic representation of a prismatic battery cell for a high-voltage storage system for a motor vehicle according to an embodiment of the present invention. Fig. 3a, Fig. Figure 3b shows further schematic representations of prismatic battery cells for a high-voltage storage system for a motor vehicle according to various embodiments of the present invention. Fig. Figure 4 shows a schematic representation of an arrangement of prismatic battery cells for a high-voltage storage system for a motor vehicle according to an embodiment of the present invention. Fig. Figure 5 shows a schematic representation of a cell packing for a high-voltage storage device for a motor vehicle with a prismatic battery cell according to a second embodiment of the present invention. Fig. Figure 6 shows a further schematic representation of the cell packing for a high-voltage storage device for a motor vehicle with a prismatic battery cell according to a second embodiment of the present invention. Fig. Figure 7 shows a schematic flowchart of a method for manufacturing a cell housing for a prismatic battery cell for a high-voltage storage device for a motor vehicle according to an embodiment of the present invention. Fig. Figure 8 shows a schematic flowchart of a method for manufacturing a cell pack for a high-voltage storage device for a motor vehicle according to an embodiment of the present invention. Fig. Figure 9 shows a schematic representation of a method for manufacturing a cell pack for a high-voltage storage device for a motor vehicle with a prismatic battery cell according to a third embodiment of the present invention.

[0025] Fig. Figure 1 shows a first embodiment of a cell housing 10 for a prismatic battery cell for a high-voltage storage device for a motor vehicle in a schematic perspective view.

[0026] The cell housing 10 has two opposing side walls 11 and two opposing end walls 12 connecting these side walls 11. These end walls form a rectangular receiving body 13 for receiving a battery structure (not shown) and define an interior space 14 for receiving the battery structure. The side walls 11 and the end walls 12 each abut each other at an edge 16. The receiving body 13 and the cell housing 10 are open on the remaining two sides 18. In some embodiments, these open sides 18 can be closed or at least partially closed to define the interior space 14 and to simplify the arrangement of the battery structure.

[0027] In the present embodiment, the end walls 12, which are narrower than the side walls 11, may be narrower or have a smaller width in other embodiments. A receiving tab 15 or a receiving tab structure is arranged at each of the butt edges 16. Each receiving tab 15 is designed, particularly along its longitudinal extent or receiving direction, to receive a fastening rod (not shown here). For this purpose, the receiving tab in the present embodiment has a receiving opening 115. This allows a connection between the receiving tab 15 or the cell housing 10 and the fastening rod, enabling the arrangement of multiple cell housings 10 or battery cells in a cell pack. This allows for a cell pack of battery cells with improved robustness against bending and / or torsional loads.

[0028] The cell housing 10 can be designed as an extruded profile, wherein the receiving tabs 15 extend along a pressing direction Z of the extruded profile or cell housing 10 and are arranged outside the cross-section of the receiving body 13 or interior 14.

[0029] Fig. Figure 2 shows an embodiment of a prismatic battery cell 20 for a high-voltage storage system for a motor vehicle with a further development of a cell housing 10 made of Fig. 1 in a schematic perspective representation.

[0030] The prismatic battery cell 20 has a battery structure 21 with two electrical poles 22 or terminals, which is accommodated in the cell housing 10 such that the poles 22 are accessible for electrical contact. For this purpose, the battery structure 21 is inserted through an open side 18 of the cell housing 10 and positioned in the interior 13.

[0031] Compared to the in Fig. In the embodiment shown in Figure 1, the cell housing 10 depicted here has a receiving tab 15 at each of its butt edges 16, which runs parallel to the butt edges 16 of the end and side walls 11, 12, wherein the receiving tab 15 is arranged at a first position P1 of four predetermined positions P1 to P4 along the butt edge 16. The receiving tab 15 can be provided, for example, by the receiving tab structure being made of Fig. 1 is machined, for example, milled. In other embodiments, the respective receiving tab 15 can be arranged at the second position P2, at the third position P3, or at the fourth position P4. In a manufacturing process, a cell housing 10 can be produced with receiving tabs 15 at the first position P1 or at the second position P2, which can then be reversed to be used as a cell housing 10 with receiving tabs at the third position P3 or at the fourth position P4. A correlation can exist between the number of side and end walls of the cell housing 10 and the number of positions P, so that in a cell housing with a hexagonal cross-section, receiving tabs 15 can be provided at six different positions P in order to arrange them offset from one another on a mounting rod.

[0032] In the present embodiment, insulating sleeves 125 can be inserted into the receiving openings 115 of the receiving tabs 15 of the cell housings 10 or battery cells 20 to provide electrical insulation, particularly if the cell housing 10 has a polarity.

[0033] Fig. 3a and Fig. Figure 3b shows further embodiments of the prismatic battery cell 20. Fig. 2 in a schematic top view.

[0034] In Fig. 3a shows that the receiving tabs 15 are arranged at an angle of approximately 135° to the side and end walls 11, 12 at the butt edges 16, so that a distance between the adjacent battery cells 20 can be set by means of the receiving tabs 15.

[0035] In contrast, the receiving tabs 15 of the in Fig. 3b shown embodiment in extension or parallel to the side walls 11, thereby enabling a space-saving arrangement between adjacent side walls 11 of adjacent battery cells 20.

[0036] Fig. Figure 4 shows an arrangement of a number of prismatic battery cells 20 with a cell housing 10 according to the embodiments of Fig. 2 and Fig. 3a in a schematic perspective representation.

[0037] The mounting rod 16 can be designed as a threaded rod and / or screw to enable a positive-locking fastening and thus fixation of the battery cells 20 or mounting tabs 15 in a longitudinal direction Z. In the illustrated embodiment, the first battery cell 201 has first mounting tabs 151 at its corners at a first position P1 in the mounting direction Z, which are arranged at the top of the mounting rod 16. Adjacent to these, second mounting tabs 152 are arranged at a second position P2 of the second battery cell 202. A third mounting tab 153 at a third position P3 of a third battery cell 203 is arranged adjacent to the second mounting tab 152 of the second battery cell 202. For the sake of clarity, a fourth battery cell 20, whose mounting tab would be attached at the bottom of the mounting rod 16, is not shown.This allows four battery cells 20 to be arranged with one of their mounting tabs 15 on each of a mounting rod 16, wherein the four battery cells 20 can be arranged adjacent to each other at their side or end faces 11, 12. By dimensioning the mounting tabs 15, the spacing of the battery cells 20 or their side and / or end faces 11, 12 from each other can be adjusted.

[0038] Fig. Figure 5 shows an embodiment of a cell packing 50 for a high-voltage storage device for a motor vehicle with a number of prismatic battery cells 20 with a cell housing 10 according to the one shown in Figure 5. Fig. 4. Exemplary embodiment shown in a schematic perspective view.

[0039] The cell pack 50 comprises a number of prismatic battery cells 20, which are arranged according to the in Fig. In the embodiment shown in Figure 4, the battery cells 20 are arranged offset on mounting rods 16 by means of their receiving tabs 15. The mounting rods 16 can be pre-positioned by means of a first plate assembly 17 so that the battery cells 20 can be slid onto the mounting rods 16. The mounting rods 16 can act as a brace that counteracts or stiffens bending or torsion of the cell pack 50 and thus of the high-voltage storage system.

[0040] Fig. Figure 6 shows a top view of the in Fig. 5 cell packing shown 50.

[0041] It can be seen that the mounting tabs 15 and their design allow for adjustable spacing between the battery cells 20, both longitudinally and transversely. In particular, this spacing can be adjusted to achieve specified clearances for air gaps and / or creepage distances.

[0042] The fastening rods can act as nodes, so that all receiving tabs 15 of adjacent battery cells 20 lie on one axis and can be offset from each other along the longitudinal extension of the respective fastening rod 16. The tab positions P can be used as a code, particularly with regard to the position of the respective battery cell 20 in the cell pack 50.

[0043] Fig. Figure 7 shows a flowchart of an exemplary method 100 for manufacturing a cell housing 10 for a prismatic battery cell 20 for a high-voltage storage device for a motor vehicle according to the present invention.

[0044] In a first step A, an example of a square extruded profile is provided, comprising two opposing side walls 11 and two opposing end walls 12 connecting these side walls 11, with a receiving tab structure 15 arranged in the pressing direction Z at each of their corners or edges. In a second step B, the extruded profile can be cut to length or divided in the pressing direction Z to provide individual cell housings 10 of a predetermined height.

[0045] In a further step C, at least part of the receiving tab structure is removed to form a receiving tab 15 at a predetermined position P. This allows a cell housing 10 and / or a battery cell 20 to be mounted according to the embodiments already described above. Fig. 2 to 6 will be provided.

[0046] Fig. Figure 8 shows a flowchart of a method 200 for producing a cell pack 50 of prismatic battery cells 20 for a high-voltage storage device for a motor vehicle according to an embodiment of the present invention.

[0047] In a first step a, at least one mounting rod 16 is provided, which is configured to interact with or receive a receiving tab 15 of a cell housing 10 of a prismatic battery cell 20. In a step b, at least one prismatic battery cell 20 with a cell housing 10, which is described in particular herein and which has at least one receiving tab 15 on at least one of its butt edges 16, is arranged on the at least one mounting rod 16 by means of the receiving tab 15. The mounting direction can be, for example, in a Z-direction along the receiving tab(s) 15.

[0048] In a further step c, at least a first plate assembly 17 and a second plate assembly 27 can be clamped together by means of the fastening rods 16 in order to stabilize the cell packing 50.

[0049] Fig. Figure 9 shows a schematic representation of the method 200 for producing a cell pack 50 of prismatic battery cells 20 for a high-voltage storage device for a motor vehicle according to an embodiment of the present invention.

[0050] In a first step a, a number of mounting rods 16, pre-positioned by means of a plate device 17, are provided, the mounting rods 16 being spaced apart from one another such that they can accommodate receiving tabs 15 of battery cells 20. According to the present embodiment, in a further step b, a fourth prismatic battery cell 204, with its receiving tabs 154 arranged at a fourth position P4, is first arranged on four adjacent mounting rods 16. Subsequently, a third prismatic battery cell 203, with third receiving tabs 153 at a third position P3, can be arranged on four mounting rods 16, with receiving tabs 154 of the fourth battery cell 204 already being arranged on two of these mounting rods 16.

[0051] In a further step, a second battery cell 202 can be mounted on four mounting rods 16, wherein two of the mounting rods 16 already have receiving tabs 154 of the fourth battery cell 204, and on one of these four or two mounting rods 16, receiving tabs 153, 154 of the third and fourth battery cells 203, 204 are already accommodated. In a further step, a second battery cell 202 with second receiving tabs 152 can be arranged on four mounting rods 16, wherein two of these mounting rods 16 are already enclosed by third receiving tabs 153 of the third battery cell 203, and two of the mounting rods 16 have already accommodated receiving tabs 154 of the fourth battery cell 204, one of these mounting rods 16 having both a third receiving tab 153 and a fourth receiving tab 154.

[0052] In a further step, a first battery cell 201 with first receiving lugs 151 can be arranged on four mounting rods 16, wherein two of these mounting rods 16 are already enclosed by third receiving lugs 153 of the third battery cell 203, and two of the mounting rods 16 have already received receiving lugs 152 of the second battery cell 202, wherein the common mounting rod 16, here characterized by an axis A, can receive all four receiving lugs 151 to 154 vertically spaced apart or offset from one another. In a further step, a second plate assembly 27 can be arranged on the mounting rods 16 and, in particular by means of suitable fastening means, fixed to the mounting rods 16 in order to enable preloading of the plate assemblies 17, 27 as well as the battery cells 20 or the cell pack 50.This allows for the provision of a stable and, in particular, cost-reduced cell pack 50 for a high-voltage storage system for a motor vehicle. REFERENCE MARK LIST 10 cell casings 11 Side wall 12 Front wall 13 recording bodies 14 Interior 15 Profile groove 16 Impact edge 17 first plate setup 18 open pages 20 prismatic battery cells 21 Battery structure 22 electrical terminal 27 second plate setup 50-cell pack 115 Intake opening 125 insulating sleeves Axis Z Press or receiving axis

Claims

[1] Cell housing (10) for a prismatic battery cell (20) for a high-voltage storage device for a motor vehicle, comprising a receiving body (13) for receiving a battery structure (21) with two opposite side walls (11) and two opposite end walls (11) connecting these side walls (12), wherein at least one end wall (11) and / or side wall (12) has at least one receiving tab (15). [2] Cell casing (10 according to the preceding claim, wherein the at least one receiving tab (15) is substantially tubular. [3] Cell housing (10) according to one of the preceding claims, wherein a receiving axis of the receiving tab (15) runs parallel to one of the butt joint lines (16) of an end wall (12) and a side wall (11). [4] Cell housing (10) according to one of the preceding claims, wherein the receiving tab (15) is arranged at a predetermined position (P) along the butt line (16) of an end wall (12) and a side wall (11). [5] Cell housing (10) according to one of the preceding claims, wherein the cell housing (10) is designed as an extruded profile. [6] Prismatic battery cell (20) for a high-voltage storage device for a motor vehicle, comprising a cell housing (10) according to one of the preceding claims. [7] Cell packing (50) for a high-voltage storage device for a motor vehicle, comprising at least one prismatic battery cell (20) according to the preceding claim and / or comprising a cell housing (10) according to one of the preceding claims, wherein the at least one battery cell (20) is arranged on at least one mounting rod (16) by means of the at least one receiving tab (15). [8] High-voltage storage device for a motor vehicle, comprising at least one cell pack (50) according to the preceding claim. [9] Method (100) for manufacturing a cell housing (10) for a prismatic battery cell (20) for a high-voltage storage system, comprising the following steps: A) Manufacturing an extruded profile, with at least two opposing side walls (11) and end walls (12), wherein at least one end wall (12) and / or side wall (11) has a receiving tab structure (15); and C) Removing at least part of the receiving tab structure (15) to form a receiving tab (15) at a predetermined position (P). [10] Method (200) for manufacturing a cell pack (50) of battery cells (20) for a high-voltage storage system, comprising the following steps: a) Providing at least one fastening rod (16) configured to interact with a receiving tab (15) of a cell casing (10) of a prismatic battery cell (20); and b) Arranging at least one prismatic battery cell (20) with a cell housing (10) having at least one receiving tab (15) to which at least one fastening rod (16) can be attached by means of the receiving tab (15).

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