Battery housing for receiving a plurality of battery components, battery comprising a battery housing, and motor vehicle comprising a battery

Abstract

The invention relates to a battery housing (1) for receiving a plurality of battery components (3), having a first battery housing component (10), a second battery housing component (20), and at least one battery component mounting (30) which has a plurality of receiving devices (40) for receiving the battery components (3). The battery component mounting (30) is sandwiched between the first battery housing component (10) and the second battery housing component (20) and is bonded to the first battery housing component (10) and / or to the second battery housing component (20). The invention additionally relates to a battery (4) having a battery housing (1) and to a motor vehicle having a battery (4).

Description

[0001] Applicant: KAUTEX TEXTRON GmbH & Co. KG

[0002] Our reference: P80836WO2

[0003] May 6, 2024

[0004] Battery housing for accommodating a plurality of battery components, battery with a battery housing, motor vehicle with a battery

[0005] The present invention relates to a battery housing for accommodating a plurality of battery components. Furthermore, the present invention relates to a battery having a battery housing and a motor vehicle having a battery.

[0006] Batteries, particularly traction batteries for motor vehicles, of the new generation are often constructed according to the "cell-to-pack" principle in order to increase energy density. This means that the battery cells are not installed in the battery housing as individual battery modules. Instead, the battery cells are installed directly in the battery housing. This is usually achieved by fully bonding the battery cells or completely embedding the battery cells in potting compounds. Medium-density polyurethane foams are typically used as potting compounds; these bond to the battery cells and the battery housing by adhesion. The potting compound acts as an electrical and thermal insulator between the battery cells and ensures sufficient torsional and flexural rigidity of the battery.This means that the battery can be smaller than a conventional battery with battery modules for a given capacity. However, these batteries have the disadvantage that the potting and curing process of the potting compound has to be carried out, which is technologically difficult to control and slow. This can result in potting compound getting into unintended areas within the battery casing. Another problem with these batteries is that the potting compound does not completely fill the areas in the battery casing intended for filling, which can potentially impair the mechanical and thermal performance of the battery. In addition, the cured potting compound can have an inhomogeneous density.A further disadvantage is the poor recyclability of the battery casing, which is particularly due to the complex separation of the materials of the battery casing.

[0007] These disadvantages are particularly pronounced in battery casings made of plastic or fiber-reinforced plastic. The plastic surfaces of the battery casing require extensive pretreatment to achieve sufficient adhesion between the potting compound and the battery casing. Furthermore, subsequent separation of the potting compound and a battery casing made of plastic or fiber-reinforced plastic during recycling is even more difficult than with a battery casing made of metal.

[0008] The present invention is based on the object of providing a battery housing for accommodating battery cells, which has improved torsional and flexural rigidity and at the same time has improved efficient recyclability.

[0009] The object underlying the present invention is achieved by a battery housing having the features of claim 1 of the present invention. Advantageous embodiments of the battery housing are described in the claims dependent on claim 1.

[0010] More specifically, the object underlying the present invention is achieved by a battery housing for accommodating a plurality of battery components, comprising a first battery housing component, a second battery housing component, and at least one battery component holder which has a plurality of receiving devices for accommodating the battery components. The battery component holder is arranged in a sandwich manner between the first battery housing component and the second battery housing component, wherein the battery component holder is materially connected to the first battery housing component and / or to the second battery housing component.

[0011] The battery housing according to the invention has the advantage that the battery housing has improved, efficient recyclability. Because there is no need for a potting compound in the battery housing, it is possible to recycle the battery housing without complex separation processes for separating the potting compound from the battery housing components. Furthermore, the battery housing according to the invention has the advantage that the battery housing has improved torsional and flexural rigidity. Because the battery component holder is connected to the first battery housing component and / or to the second battery housing component, the battery housing can absorb shear and bending forces in an improved manner.Finally, the battery housing according to the invention has the advantage that the battery housing has improved electrical and thermal insulation between battery components, in particular battery cells, that can be accommodated in the battery housing.

[0012] The feature according to which the battery component holder is sandwiched between the first battery housing component and the second battery housing component can also be expressed as the battery component holder being arranged as a sandwich core between the first battery housing component and the second battery housing component. Consequently, the battery component holder can also be referred to as a sandwich core.

[0013] The first battery housing component is preferably designed as a battery housing shell. The first battery housing component can also be referred to as a battery housing lower shell or generally as a lower shell.

[0014] The second battery housing component is preferably designed as a battery housing shell or as a battery housing cover, wherein the battery housing cover can also be designed as a battery housing shell. The second battery housing component can also be referred to as a battery housing upper shell or generally as an upper shell.

[0015] The receiving devices of the battery component holder are designed as receiving recesses and / or as through openings in the battery component holder.

[0016] A battery housing designed in this way has the advantage that the battery components can be easily accommodated in the receiving devices of the battery component holder of the battery housing.

[0017] The battery components are preferably designed as battery cells. The battery cells are preferably designed as cylindrical battery cells. Furthermore, it is also possible for the battery components to be designed as battery modules. The battery housing is preferably designed as a traction battery housing for a traction battery of an electrically driven motor vehicle.

[0018] Preferably, the traction battery housing can be mounted on a body of a motor vehicle.

[0019] The receiving devices of the battery component holder preferably have a receiving volume. The receiving volume is preferably at least partially delimited by an inner wall of the receiving device.

[0020] The receiving devices of the battery component holder preferably have a first receiving opening and / or a second receiving opening. The first receiving opening is preferably arranged opposite a base surface of the first battery housing component. The second receiving opening is preferably arranged opposite a base surface of the second battery housing component. A battery component can be inserted into the receiving device through the first receiving opening or the second receiving opening.

[0021] The receiving devices of the battery component holder can also be referred to as receiving cavities.

[0022] Preferably, the receiving devices of the battery component holder have a partially circular or circular free cross-section.

[0023] Again, the receiving devices of the battery component holder preferably have a free cross-section that substantially corresponds to a cross-section of a battery component that can be accommodated in the battery housing. A battery housing designed in this way has the advantage that the battery components can be accommodated more easily in the receiving devices of the battery component holder of the battery housing.

[0024] Preferably, the battery housing is designed such that the battery component holder has a plurality of connecting surfaces which are arranged on the end face of the battery component holder, wherein the battery component holder is connected in a material-locking manner to the first battery housing component and / or the second battery housing component by means of the plurality of connecting surfaces.

[0025] A battery housing designed in this way has the advantage that the battery housing has even better torsional and flexural rigidity.

[0026] The connecting surfaces are preferably partially circular, circular, or linear. A battery housing designed in this way has the advantage that the battery component holder is better connected to the first battery housing component and / or to the second battery housing component. As a result, the battery housing has further improved torsional and flexural rigidity.

[0027] Preferably, the connecting surfaces are arranged in a circle around the first receiving opening and / or around the second receiving opening of the receiving devices of the battery component holder.

[0028] Preferably, the battery component holder has at least one positioning device which is arranged on the front side of the battery component holder, wherein the positioning device of the battery component holder is received in a positioning receptacle of the first battery housing component and / or the second battery housing component corresponding to the positioning device.

[0029] A battery housing designed in this way has the advantage that the battery component holder can be positioned more effectively in the battery housing and connected to the first battery housing component and / or to the second battery housing component. As a result, the battery housing has further improved torsional and flexural rigidity.

[0030] A positioning device and a positioning receptacle correspond to each other if the positioning device can be accommodated in the positioning receptacle. In other words, the free cross-section of the positioning receptacle corresponds to the cross-section of the positioning device.

[0031] The positioning device is preferably designed as a positioning pin, wherein the positioning pin protrudes from an end face of the battery component holder. The positioning pin is preferably designed as a cylinder.

[0032] The positioning receptacle is preferably designed as a positioning recess, wherein the positioning recess is arranged on a base surface of the first battery housing component and / or on a base surface of the second battery housing component. The positioning recess preferably has a circular free cross-section, so that a positioning pin designed as a cylinder can be received in the positioning recess.

[0033] Preferably, the battery housing is designed such that the connecting surfaces of the battery component holder are each designed as connecting projections that protrude from an end face of the battery component holder. A battery housing designed in this way has the advantage that the battery housing has further improved torsional and flexural rigidity.

[0034] Preferably, the connecting projections have a partially circular or circular cross-section when viewed from above onto an end face. In other words, the connecting projections can be configured as cylinders.

[0035] When the battery housing is installed, for example in a motor vehicle, the front surface of the battery component holder runs in a horizontal direction.

[0036] When the battery housing is installed, for example in a motor vehicle, the base surface of the first battery housing component and the base surface of the second battery housing component extend horizontally. In particular, the end face of the battery component holder and the base surface of the first battery housing component and the base surface of the second battery housing component extend parallel to one another.

[0037] The battery component holder preferably has two end faces, wherein the two end faces are arranged at a distance from one another. In the installed position of the battery housing, for example in a motor vehicle, both end faces of the battery component holder extend in a horizontal direction, wherein a first end face is arranged opposite the base surface of the first battery housing component and a second end face is arranged opposite the base surface of the second battery housing component.

[0038] Preferably, the battery housing is designed such that the connecting projections are arranged adjacent to three receiving devices when viewed from above onto an end face of the battery component holder.

[0039] A battery housing designed in this way has the advantage that the battery housing exhibits further improved torsional and flexural rigidity. Due to the regular arrangement of the connecting projections on an end face, the battery component holder can be connected in an improved sandwich-like manner to the first battery housing component and / or the second battery housing component.

[0040] Preferably, the battery housing is designed such that the connecting projections are arranged between two receiving devices of the battery component holder when viewed from above onto an end face of the battery component holder.

[0041] Preferably, the battery housing is designed such that the battery component holder is materially connected to the first battery housing component and / or to the second battery housing component by means of welding and / or gluing.

[0042] A battery housing designed in this way has the advantage that the battery housing has improved torsional and flexural rigidity.

[0043] Preferably, the welding between the battery component holder and the first battery housing component and / or the second battery housing component is produced by means of ultrasonic welding processes.

[0044] A battery housing designed in this way has the advantage of improved, efficient recycling. Due to the welding process, no adhesive residues are left, making the recycling process less complex.

[0045] The battery housing is preferably designed such that the first battery housing component has a plurality of connecting projections which are arranged on a base surface facing a receiving volume of the battery housing and extend into the receiving volume, and / or the second battery housing component has a plurality of connecting projections which are arranged on a base surface facing the receiving volume of the battery housing and extend into the receiving volume, wherein the battery component holder is materially connected to the first battery housing component and / or to the second battery housing component by means of the plurality of connecting projections.

[0046] A battery housing designed in this way has the advantage that the battery housing has even better torsional and flexural rigidity.

[0047] Preferably, the connecting projections have a partially circular or circular cross-section when viewed from above onto an end face. In other words, the connecting projections can be configured as cylinders.

[0048] Preferably, the battery housing is designed such that the battery component holder is additionally connected to the first battery housing component and / or to the second battery housing component in a form-fitting and / or force-fitting manner.

[0049] A battery housing designed in this way has the advantage that the battery housing has further improved torsional and flexural rigidity. Preferably, the battery component holder is additionally connected to the first battery housing component and / or the second battery housing component in a positive and / or force-fitting manner by means of a toothing and / or a rear engagement and / or a clamping connection.

[0050] A battery housing designed in this way has the advantage that the battery housing has even better torsional and flexural rigidity and, at the same time, improved efficient recyclability.

[0051] A toothing and / or a back-engagement and / or clamping connection each comprise at least two mutually corresponding connecting means. Two mutually corresponding connecting means are designed to be connected to one another and to maintain this connection in a force-fitting and / or form-fitting manner.

[0052] A gearing has at least two rows of teeth corresponding to one another.

[0053] An undercut can be designed as a clip. A clip has at least one clip and at least one clip receptacle corresponding to the clip. The clip receptacle can be designed as a receptacle recess, wherein the receptacle recess has at least one undercut configured to engage behind a clip received in the receptacle recess. Preferably, the receptacle recess has two undercuts.

[0054] A rear engagement can be designed as a snap-hook connection. A snap-hook connection has at least one snap-hook and a snap-hook receptacle corresponding to the snap-hook. The snap-hook receptacle can be designed as a receptacle recess, wherein the receptacle recess has at least one undercut configured to engage behind a snap-hook received in the receptacle recess.

[0055] A clamping connection can be designed as a tenon-and-groove connection. A tenon-and-groove connection has at least one tenon, preferably a cylindrical tenon, and a receiving groove corresponding to the tenon. A cross-section of the tenon can be larger than a free cross-section of the corresponding receiving groove, so that a crimp connection is formed between the tenon and the receiving groove when the tenon and the receiving groove are received.

[0056] Preferably, one of the mutually corresponding connecting means of a toothing and / or a rear engagement and / or a clamping connection is formed monolithically with the battery component holder. The respectively associated corresponding connecting means is preferably formed monolithically with the first battery housing component and / or with the second battery housing component.

[0057] Two monolithically connected components are made from the same component and, in particular, are connected to each other without any joints.

[0058] A battery housing designed in this way has the advantage that the battery housing has even better recyclability while at the same time having improved torsional and flexural rigidity. Because the connecting elements are an integral part of the battery component holder and / or the first battery housing component and / or the second battery housing component, the battery housing has an even smaller number of different materials and thus has even better, more efficient recyclability. For example, after removal of the battery components and the other electrical components, the battery housing can be mechanically shredded in one piece and further processed, for example, into recycled plastic.

[0059] Preferably, the battery housing is designed such that the battery component holder has a first battery component holder part and a second battery component holder part, wherein the first battery component holder part is materially connected to the first battery housing component and the second battery component holder part is materially connected to the second battery housing component. A first end face of the first battery component holder part is arranged opposite a second end face of the second battery component holder part and is connected to the latter.

[0060] A battery housing designed in this way has the advantage that battery components, in particular battery cells, can be arranged in the battery housing in a simplified manner and that the battery housing simultaneously has improved torsional and flexural rigidity.

[0061] Preferably, the first battery component holder part is materially connected to the first battery housing component by welding and / or gluing. Alternatively or additionally, the first battery component holder part is preferably positively and / or non-positively connected to the first battery housing component. The positively and / or non-positively connected connection can be designed as a toothing and / or as a rear engagement and / or as a clamping connection.

[0062] Preferably, the second battery component holder part is materially connected to the second battery housing component by welding and / or gluing. Alternatively or additionally, the second battery component holder part is preferably positively and / or force-fittingly connected to the second battery housing component. The positively and / or force-fitting connection can be designed as a toothing and / or a rear engagement and / or as a clamping connection.

[0063] Preferably, the first end face of the first battery component holder part is materially connected to the second end face of the second battery component holder part, in particular materially connected by welding and / or gluing.

[0064] Preferably, the first end face of the first battery component holder part has connecting projections that protrude from the first end face. Preferably, the second end face of the second battery component holder part has connecting projections that protrude from the second end face.

[0065] Preferably, the first end face of the first battery component holder part is additionally or alternatively connected to the second end face of the second battery component holder part in a force-locking manner, in particular by a clamping connection.

[0066] Preferably, the first end face of the first battery component holder part is additionally or alternatively positively connected to the second end face of the second battery component holder part, in particular positively connected by a rear engagement and / or by a toothing.

[0067] In the installed position of the battery housing, for example in a motor vehicle, the first end face of the first battery component holder part and the second end face of the second battery component holder part run in a horizontal direction. In other words, the battery component holder has a horizontal division which divides the battery component holder into a first battery component holder part and a second battery component holder part. In the installed position of the battery housing, for example in a motor vehicle, the first end face of the first battery component holder part and the second end face of the second battery component holder part run parallel to the base area of ​​the first battery housing component and to the base area of ​​the second battery housing component.

[0068] Preferably, the first battery component holder part and the second battery component holder part together form at least one receiving device. The receiving device can have a circular free cross-section. The receiving volume of the receiving device can be partially delimited by an inner wall of the receiving device, wherein the inner wall is formed by a first inner wall section of the first battery component holder part and a second inner wall section of the second battery component holder part.

[0069] A battery housing designed in this way has the advantage that battery components, in particular battery cells, can be inserted into the battery component holder in a simplified manner.

[0070] Preferably, the battery housing is designed such that the first battery component holder part is formed monolithically with the first battery housing component and / or that the second battery housing component holder part is formed monolithically with the second battery housing component.

[0071] A battery housing designed in this way has the advantage that the battery housing has even better recyclability and at the same time can be manufactured more easily, in particular in one production step.

[0072] The battery housing is preferably designed such that the battery component holder has a third battery component holder part and a fourth battery component holder part, wherein the third battery component holder part is materially connected to the first battery housing component and / or to the second battery housing component, and wherein the fourth battery component holder part is materially connected to the first battery housing component and / or to the second battery housing component. The third battery component holder part has a third connecting means which is arranged on a third side surface of the third battery component holder part, and / or the fourth battery component holder part has a fourth connecting means which is arranged on a fourth side surface of the fourth battery component holder part.The third battery component holder part is positively connected to the fourth battery component holder part by means of the third connecting means and / or by means of the fourth connecting means.

[0073] A battery housing designed in this way has the advantage that battery components, in particular battery cells, can be accommodated in a simplified manner in the receiving devices of the battery component holder of the battery housing, and that the battery housing simultaneously has improved torsional and flexural rigidity.

[0074] Preferably, in the installed position of the battery housing in a motor vehicle and during intended use, the third battery component holder part is connected to the fourth battery component holder part in a form-fitting manner horizontally or vertically by means of the third connecting means and / or by means of the fourth connecting means.

[0075] Preferably, the third battery component holder part is integrally connected to the first battery housing component and / or to the second battery housing component by means of welding and / or gluing.

[0076] Preferably, the fourth battery component holder part is materially connected to the first battery housing component and / or to the second battery housing component by means of welding and / or gluing.

[0077] Alternatively or additionally, the third battery component holder part and / or the fourth battery component holder part is connected to the first battery housing component and / or to the second battery housing component in a positively locking and / or force-locking manner. The positively locking and / or force-locking connection can be designed as a toothing and / or as a rear engagement and / or as a clamping connection.

[0078] The third side surface and / or the fourth side surface is / are preferably arranged perpendicular to the first end surface of the first battery component holder part and / or to the second end surface of the second battery component holder part.

[0079] The third connecting means and the fourth connecting means preferably correspond to one another. For example, the third connecting means can be designed as a clip and the fourth connecting means as a clip receptacle corresponding to the clip. The clip receptacle can be designed as a receptacle recess. The receptacle recess is preferably designed such that the clip is engaged behind by the receptacle recess when the clip is received in the receptacle recess.

[0080] The third connecting means can be designed as a snap hook, and the fourth connecting means can be designed as a snap hook receptacle corresponding to the snap hook. The snap hook receptacle can be designed as a receptacle recess. The receptacle recess is preferably designed such that the snap hook is engaged behind by the receptacle recess when the snap hook is received in the receptacle recess.

[0081] In an installed position of the battery housing, for example in a motor vehicle, the third side surface and the fourth side surface extend along a vertical direction. In particular, the third side surface of the third battery component holder part is arranged opposite a fourth side surface of the fourth battery component holder part and parallel thereto.

[0082] Preferably, the third battery component holder part and the fourth battery component holder part together form at least one receiving device. The receiving device can have a circular free cross-section. Preferably, the circular cross-section of the receiving device is formed by the third battery component holder part and the fourth battery component holder part, wherein the third battery component holder part and the fourth battery component holder part each provide a semicircular section of the receiving device. The receiving volume of the receiving device can be partially delimited by an inner wall of the receiving device, wherein the inner wall is formed by a third inner wall section of the third battery component holder part and a fourth inner wall section of the fourth battery component holder part.

[0083] Preferably, the battery housing is designed such that the third battery component holder part is formed monolithically with the first battery housing component and / or with the second battery housing component, and / or the fourth battery component holder part is formed monolithically with the first battery housing component and / or the second battery housing component.

[0084] A battery housing designed in this way has the advantage that battery cells can be arranged more easily in the battery housing and that the battery housing simultaneously has improved, efficient recyclability.

[0085] Preferably, the battery housing is designed such that the receiving devices each have a battery component support, wherein a free space is formed between the respective battery component supports and a base surface of the first battery housing component.

[0086] A battery housing designed in this way has the advantage that battery components, in particular battery cells, can be arranged more easily in the battery housing and at the same time can be better tempered by a fluid flowing through the battery housing.

[0087] The battery component support is designed so that a battery component, in particular a battery cell, rests on the battery component support when inserted into the receiving device. The battery component support can be designed as a constriction of the receiving device. A battery component support designed in this way has a smaller free cross-section than the receiving device.

[0088] The battery component support can be formed as a separate component. For example, the battery component support can be formed as an insert with a smaller free cross-section than the receiving device and inserted into the receiving device. Alternatively, the battery component support can be monolithically connected to the battery component holder or the first battery housing component.

[0089] The free space between the base area of ​​the first battery housing component and the battery components can, for example, be configured to accommodate a fluid, in particular a cooling fluid. The cooling fluid can be used to cool the battery components in the battery housing.

[0090] Preferably, the battery housing is designed such that at least one battery component support is designed as a projection which extends from an inner wall delimiting a receiving volume of the receiving device into the receiving volume in which a battery component can be received, wherein the battery component support is elastically deformable, so that by inserting a battery component into the receiving volume of the receiving device, the battery component support is deformed in the direction of the base area of ​​the first battery housing component.

[0091] The appropriately designed battery housing has the advantage that battery components with different heights can be accommodated by the receiving device. This is because the deformation of the battery component support toward the base area of ​​the first battery housing component increases the receiving volume of the receiving device. Thus, variations in the length of battery components, which often occur due to manufacturing, can be better compensated for by the appropriately designed battery housing.

[0092] Preferably, the battery housing is designed such that the battery component support is inclined relative to the inner wall in the direction of the base area of ​​the first battery housing component. Furthermore, the battery housing is designed such that the battery component support is inclined relative to the inner wall in the direction of the base area of ​​the first battery housing component even without a battery component inserted into the receiving volume.

[0093] The correspondingly designed battery housing has a further improved flexibility with regard to the height expansion of the battery components that are installed in the receiving device.

[0094] Preferably, the battery housing is designed such that at least one battery component support is designed as a rib which extends from an inner wall delimiting a receiving volume of the receiving device into the receiving volume in which a battery component can be received, wherein the at least one rib is elastically deformable, so that by inserting a battery component into the receiving volume of the receiving device, the at least one rib is deformed in the direction of the inner wall.

[0095] Further preferably, an outer edge of the rib is formed inclined so that a lower region of the outer edge of the rib, which is adjacent to a base area of ​​the first battery housing component, has a greater distance from the inner wall than an upper region of the outer edge of the rib, which is adjacent to a base area of ​​the second battery housing component.

[0096] Preferably, the battery housing is designed such that a first receiving opening of the receiving device, which is arranged opposite a base area of ​​the first battery housing component, is closed by means of a bottom wall, wherein the bottom wall is designed such that it is ruptured when a predetermined force is exerted on it, such as is generated by a battery component inserted into the receiving device in the event of thermal runaway of the battery component, is exceeded.

[0097] The correspondingly designed battery housing has improved operational reliability, since in the event of thermal runaway of a battery component, the gases produced can be more effectively dissipated.

[0098] The bottom wall is preferably designed as a membrane. Further preferably, the bottom wall is curved. Even further preferably, the bottom wall is curved such that the surface of the bottom wall opposite the base surface of the first battery housing component is concavely curved.

[0099] Preferably, the battery housing is designed such that the bottom wall has at least one predetermined breaking point, preferably a predetermined breaking line.

[0100] Preferably, the predetermined breaking point or the predetermined breaking lines are formed as a thin point of the bottom wall. For example, the predetermined breaking point or the predetermined breaking line is the connection point or the connection line of the bottom wall to the battery component holder. Preferably, the battery housing is designed such that the first battery housing component has a plurality of projections which extend from a base area of ​​the first battery housing component into a receiving volume of the battery housing, wherein the battery components can be placed on the projections, such that a free space is formed between the base area of ​​the first battery housing component and the battery components.

[0101] A battery housing designed in this way has the advantage that battery components, in particular battery cells, can be temperature-controlled in an improved manner by a fluid flowing through the battery housing, and that the battery housing simultaneously has an improved, efficient recyclability.

[0102] The projections may be monolithically connected to the first battery housing component. The projections may be formed as cylinders.

[0103] The projections may form a first battery component holder part, which may also be referred to as a battery cell holder and / or a cell holder.

[0104] The projections can each extend from the base area of ​​the first battery housing component into the receiving devices, in particular into the receiving volumes of the receiving devices.

[0105] Preferably, the battery housing is designed such that the battery housing has at least one adhesive device, which is connected to an inner wall delimiting a receiving volume of the receiving device and is designed for adhesive connection to a battery component accommodated in the receiving volume. The correspondingly designed battery housing has the advantage that the battery components are more securely fastened in the battery component holder.

[0106] Preferably, the adhesive device is designed as an adhesive tape, preferably as a double-sided adhesive tape.

[0107] Preferably, the adhesive device is designed to be circumferential. This means that the adhesive device is arranged circumferentially on the inner wall.

[0108] Preferably, an adhesive device is arranged in a lower region of the inner wall, ie the adhesive device is arranged adjacent to a base surface of the first battery housing component.

[0109] Further preferably, an adhesive device is arranged in an upper region of the inner wall, ie the adhesive device is arranged adjacent to a base surface of the second battery housing component.

[0110] Preferably, the battery housing is designed such that the first battery housing component and / or the second battery housing component and / or the battery component holder comprise the same material or are formed from the same material or material mix.

[0111] A battery housing designed in this way has the advantage that the battery housing has an even more efficient recycling capability.

[0112] The same material can be formed as a thermoplastic, in particular as a polypropylene (PP), as a polycarbonate (PC) and / or as a polyamide (PA). The same material can be formed as a foamed plastic. A battery housing formed in this way has the advantage that the battery housing has a reduced density and is therefore lighter, while at the same time offering improved, efficient recyclability.

[0113] Alternatively, the same material can be formed as a solid plastic. A battery housing designed in this way has the advantage of further improved torsional and flexural rigidity and, at the same time, improved recyclability.

[0114] The same material mix can comprise a plastic material as the matrix material and reinforcing fibers. The reinforcing fibers can be glass fibers and / or carbon fibers and / or aramid fibers. The plastic material can be a solid or foamed plastic, in particular a thermoplastic such as PP, PC, or PA. A battery housing constructed in this way has the advantage that the battery housing has even better torsional and flexural rigidity.

[0115] Preferably, the battery housing is designed such that a height extension of the battery component holder is greater than or equal to a height extension of the battery components.

[0116] A battery housing designed in this way has the advantage that battery components, in particular battery cells, can be positioned more easily in the receiving devices of the battery component holder.

[0117] When the battery housing is installed, for example, in a motor vehicle, the vertical extension of the battery components and the vertical extension of the battery component holder extend vertically. The present invention is also based on the object of providing a battery that has improved torsional and flexural rigidity while simultaneously offering improved, efficient recyclability.

[0118] This object underlying the present invention is achieved by a battery having a battery housing as described above, wherein the battery has a plurality of battery components which are each received in a receiving device of the battery component holder.

[0119] The present invention is also based on the object of providing a motor vehicle which has a battery with improved efficient recyclability.

[0120] This object underlying the present invention is achieved by a motor vehicle with a battery as described above, wherein the battery is energy-coupled to the electric drive motor of the motor vehicle.

[0121] Further advantages, details and features of the invention will become apparent from the following exemplary embodiments. These show in detail:

[0122] Figure 1 : a sectional view of a battery housing in

[0123] Area of ​​a receiving device according to a first embodiment;

[0124] Figure 2 : a sectional view of a battery housing in

[0125] Area of ​​a receiving device according to a second embodiment; Figure 3: a sectional view of a battery housing in

[0126] Area of ​​a receiving device according to a third embodiment;

[0127] Figure 4 : a sectional view of a battery housing in

[0128] Area of ​​a receiving device according to a fourth embodiment;

[0129] Figure 5: a sectional view of a battery component holder of a battery housing according to a fifth embodiment;

[0130] Figure 6: a sectional view of a battery component holder of a battery housing in the connecting region of a third battery component holder part and a fourth battery component holder part according to a sixth embodiment;

[0131] Figure? : a battery component holder of a battery housing according to a seventh embodiment in a plan view;

[0132] Figure 8: a battery having a battery housing according to an eighth embodiment in a plan view;

[0133] Figure 9 : a sectional view of a battery housing in

[0134] Area of ​​a receiving device according to a ninth embodiment;

[0135] Figure 10 : a sectional view of a battery housing in

[0136] Area of ​​a receiving device according to a tenth embodiment; Figure 11: a sectional view of a battery housing in

[0137] Area of ​​a receiving device according to an eleventh embodiment; and

[0138] Figure 12 : a sectional view of a battery housing in

[0139] Area of ​​a receiving device according to a twelfth embodiment.

[0140] In the following description, identical reference symbols designate identical components or identical features, so that a description of a component made with reference to one figure also applies to the other figures, thus avoiding repetitive description. Furthermore, individual features described in connection with one embodiment can also be used separately in other embodiments.

[0141] Figure 1 shows a sectional view of a battery housing 1 for accommodating a plurality of battery components 3 in the region of a receiving device 40 according to a first embodiment. The battery housing 1 has a first battery housing component 10 and a second battery housing component 20, which at least partially delimit a receiving volume 2 of the battery housing 1. Furthermore, the battery housing 1 has a battery component holder 30, which has a plurality of receiving devices 40 for accommodating the battery components 3. The battery component holder 30 is arranged in a sandwich-like manner between the first battery housing component 10 and the second battery housing component 20 in the receiving volume 2 of the battery housing 1 and is materially connected to the first battery housing component 10 and to the second battery housing component 20.Consequently, the battery component holder 30 is arranged as a sandwich core 30 between the first battery housing component 10 and the second battery housing component 20 in the receiving volume 2 of the battery housing 1 and is materially connected to the first battery housing component 10 and to the second battery housing component 20.

[0142] The battery component holder 30 has a plurality of connecting surfaces 31 arranged on the end face of the battery component holder 30. The battery component holder 30 is materially connected to the first battery housing component 10 and to the second battery housing component 20 by means of the plurality of connecting surfaces 31. The connecting surfaces 31 of the battery component holder 30 are each designed as connecting projections 32, which each protrude from an end face 33, 34 of the battery component holder 30.

[0143] The receiving device 40 of the battery component holder 30 has a receiving volume 41 which is partially delimited by an inner wall 42 of the receiving device 40. The battery components 3 are received in the respective receiving volumes 41 of the receiving devices 40. The receiving device 40 of the battery component holder 30 has a circular free cross-section. The receiving device 40 further has a first receiving opening 43 and a second receiving opening 44 opposite the first receiving opening 43. The first receiving opening 43 is arranged opposite a base area 11 of the first battery housing component 10 and the second receiving opening 44 is arranged opposite a base area 21 of the second battery housing component 20.

[0144] The receiving device 40 has a battery component support 50 on which the battery component 3 lies. A free space 60 is formed between the battery component support 50 and the base surface 11 of the first battery housing component 10. The free space 60 is designed to receive cooling fluid for cooling the battery component 3. The battery component support 50 is designed as a constriction 51 of the receiving device 40. Figure 2 shows a sectional view of a battery housing 1 for receiving a plurality of battery components 3 in the region of a receiving device 40 according to a second embodiment. The battery component holder 30 has two positioning devices 35, 36 which are arranged on the end face of the battery component holder 30. The positioning devices 35, 36 are designed as positioning pins, wherein the positioning pins are designed as cylinders.The positioning devices 35, 36 are monolithically connected to the battery component holder 30. A first positioning device 35 protrudes from a first end face 33 of the battery component holder 30 and is received in a corresponding first positioning receptacle 12 of the first battery housing component 10. A second positioning device 36 protrudes from a second end face 34 of the battery component holder 30 and is received in a corresponding second positioning receptacle 22 of the second battery housing component 20. The positioning receptacles 12, 22 are each designed as positioning recesses.

[0145] Figure 3 shows a sectional view of a battery housing 1 in the region of a receiving device 40 for receiving a plurality of battery components 3 according to a third embodiment. The battery component holder 30 has a first battery component holder part 310 and a second battery component holder part 320, wherein the first battery component holder part 310 is materially connected to the first battery housing component 10 and the second battery component holder part 320 is materially connected to the second battery housing component 20. A first end face 311 of the first battery component holder part 310 is arranged opposite a second end face 321 of the second battery component holder part 320 and is connected to the latter.The second end face 321 of the second battery component holder part 320 has connecting projections 322 which protrude from the second end face 321 and which are materially connected to the first end face 311 of the first battery component holder part 310.

[0146] The first battery component holder part 310 is formed monolithically with the first battery housing component 10.

[0147] In the installation position of the battery housing shown in Figure 3

[0148] I, the first end face 311 of the first battery component holder part 310 and the second end face 321 of the second battery component holder part 320 extend in a horizontal direction. In other words, the battery component holder 30 has a horizontal division that divides the battery component holder 30 into the first battery component holder part 310 and the second battery component holder part 320.

[0149] The first battery component holder part 310 and the second battery component holder part 320 together form the receiving device 40, wherein the inner wall 42 of the receiving device 40 is formed by a first inner wall section 45 of the first battery component holder part 310 and by a second inner wall section 46 of the second battery component holder part 320. The receiving device 40 has a circular free cross-section.

[0150] Figure 4 shows a sectional view of a battery housing 1 for accommodating a plurality of battery components 3 in the region of a receiving device 40 according to a fourth embodiment. The first battery housing component 10 has a plurality of projections 51 extending from a base surface

[0151] II of the first battery housing component 10 extend into a receiving volume 2 of the battery housing 1, wherein the battery components 3 can be placed on the projections 51, so that a free space 60 is formed between the base area 11 of the first battery housing component 10 and the battery components 2. The projections 51 form a battery cell holder. The free space 60 is designed to receive cooling fluid.

[0152] Figure 5 shows a sectional view of a battery component holder 30 of a battery housing 1 according to a fifth embodiment. The battery component holder 30 has a third battery component holder part 330 and a fourth battery component holder part 340. The third battery component holder part 330 can be materially connected to the first battery housing component 10 (not shown in Figure 5) and / or to the second battery housing component 20 (not shown in Figure 5), and the fourth battery component holder part 340 can be materially connected to the first battery housing component 10 (not shown in Figure 5) and / or to the second battery housing component 20 (not shown in Figure 5).

[0153] The third battery component holder part 330 and the fourth battery component holder part 340 together form at least one receiving device 40 of the battery component holder 30, wherein the inner wall 42 is formed by a third inner wall section 47 and a fourth inner wall section 48.

[0154] Figure 6 shows a sectional view of a battery component holder 30 of a battery housing 1 in the connection region of a third battery component holder part 330 and a fourth battery component holder part 340 according to a sixth embodiment. The third battery component holder part 330 has two third connecting means 332 which are arranged on a third side surface 331 of the third battery component holder part 330, and the fourth battery component holder part 340 has two fourth connecting means 342 which are arranged on a fourth side surface 341 of the fourth battery component holder part 340, wherein the third battery component holder part 330 is positively connected to the fourth battery component holder part 340 by means of the third connecting means 332 and by means of the fourth connecting means 342.

[0155] A third connecting means 332 is designed as a snap hook 333, and a fourth connecting means 342 is designed as a corresponding fourth snap hook receptacle 344. The further fourth connecting means 342 is designed as a snap hook 343, and the further third connecting means 332 is designed as a corresponding third snap hook receptacle 334.

[0156] The third battery component holder part 330 has a third positioning pin 335, which is arranged on the third side surface 331 and is positively connected to a fourth receiving recess 346, which is arranged on the fourth side surface 341 of the fourth battery component holder part 340. In the installed position and during intended use of the battery housing 1, the third positioning pin 335 is vertically positively connected to the fourth receiving recess 346.

[0157] The fourth battery component holder part 340 has a fourth positioning pin 345, which is arranged on the fourth side surface 341 and is positively connected to a third receiving recess 336, which is arranged on the third side surface 331 of the third battery component holder part 330. In the installed position and during intended use of the battery housing 1, the fourth positioning pin 345 is vertically positively connected to the third receiving recess 336.

[0158] Figure 7 shows a top view of a battery component holder 30 of a battery housing 1 according to a seventh embodiment. The battery component holder 30 has connecting projections 32 that protrude from a second end face 34 and are arranged adjacent to three receiving devices 40. The connecting projections 32 are arranged in a circle at equidistant intervals from one another around the second receiving opening 44 of the receiving device 40.

[0159] In addition to the third battery component holder part 330 and the fourth battery component holder part 340, the battery component holder 30 has a fifth battery component holder part 350. The fourth battery component holder part 340 is connected to the fifth battery component holder part 350 in the same way as the fourth battery component holder part 340 is connected to the third battery component holder part 330. The battery component holder 30 can have further battery component holder parts.

[0160] Figure 8 shows a top view of a battery 4 having a battery housing 1 according to an eighth embodiment. The battery 4 has a plurality of battery components 3 accommodated in the battery component holder 30, wherein the battery component holder 30 is arranged in the receiving volume 2 of the battery housing 1.

[0161] Figure 9 shows a sectional view of a battery housing 1 for receiving a plurality of battery components 3 in the region of a receiving device 40 according to a ninth embodiment. The battery component support 50 is designed as a projection 50 or as a plurality of projections 50 which extend / extend from the inner wall 42 delimiting the receiving volume 41 of the receiving device 40 into the receiving volume 41, in which a battery component 3 can be received. The structure of the battery housing 1 shown in Figure 9 corresponds to the battery housing 1 shown in Figure 1, wherein the battery component support 50 is elastically deformable, so that by inserting a battery component 3 into the receiving volume 41 of the receiving device 40, the battery component support 50 is deformed in the direction of the base area 11 of the first battery housing component 10.

[0162] In the battery housing 1 shown in Figure 9, the battery component support 50 is inclined with respect to the inner wall 42 in the direction of the base area 22 of the first battery housing component 10 even without the battery component 3 inserted into the receiving volume 41.

[0163] Figure 10 shows a sectional view of a battery housing 1 for receiving a plurality of battery components 3 in the region of a receiving device 40 according to a tenth embodiment. The first receiving opening 43 of the receiving device 40, which is arranged opposite the base area 11 of the first battery housing component 10, is closed by means of a bottom wall 49, wherein the bottom wall 49 is designed such that it ruptures when a predetermined force exerted on it is exceeded, such as is generated by a battery component 3 inserted into the receiving device 40 in the event of thermal runaway of the battery component 3. For this purpose, the bottom wall 49 has a predetermined breaking line, which in the illustrated embodiment is designed as a thin point at the connection between the bottom wall 49 and the battery component support 50.The remaining structure of the battery housing 1 shown in Figure 10 corresponds to the battery housing 1 shown in Figure 1.

[0164] Figure 11 shows a sectional view of a battery housing 1 for accommodating a plurality of battery components 3 in the region of a receiving device 40 according to an eleventh embodiment. The battery housing 1 shown in Figure 11 corresponds to the battery housing 1 shown in Figure 10, wherein the bottom wall 49 is designed as a membrane 49. Figure 12 shows a sectional view of a battery housing 1 for accommodating a plurality of battery components 3 in the region of a receiving device 40 according to a twelfth embodiment. The battery housing 1 shown in Figure 12 has at least one adhesive device 70 which is connected to the inner wall 42 delimiting the receiving volume 41 of the receiving device 30 and is designed for adhesive connection to a battery component 3 received in the receiving volume 41.In the illustrated embodiment, the battery housing 1 has two adhesive devices 70, each designed as an adhesive tape 70. A first adhesive tape 70 is arranged in a lower region of the inner wall 42, so that the first adhesive tape 70 is arranged adjacent to the base area 11 of the first battery housing component 10. A second adhesive tape 70 is arranged in an upper region of the inner wall 42, so that the second adhesive tape 70 is arranged adjacent to the base area 21 of the second battery housing component 20. A free space is formed between the inner wall 42, which runs between the first adhesive tape 70 and the second adhesive tape 70, and the battery component 3. The remaining structure of the battery housing 1 shown in Figure 12 corresponds to the battery housing 1 shown in Figure 1.

[0165] List of reference symbols

[0166] Battery case

[0167] Capacity (of the battery case)

[0168] Battery component

[0169] battery

[0170] First battery housing component

[0171] Base area (of the first battery housing component)

[0172] First positioning fixture (of the first battery housing component)

[0173] Second battery housing component

[0174] Base area (of the second battery housing component)

[0175] Second positioning receptacle (of the second battery housing component)

[0176] Battery component holder

[0177] Connecting surfaces

[0178] Connecting projection (of the battery component holder)

[0179] First frontal surface

[0180] Second frontal surface

[0181] First positioning device (of the battery component holder)

[0182] Second positioning device (of the battery component holder)

[0183] First battery component holder part

[0184] First end face (of the first battery component holder part)

[0185] Second battery component holder part

[0186] Second end face (of the second battery component holder part)

[0187] Connecting projection (of the second battery component holder part)

[0188] Third battery component holder part

[0189] Third side surface (of the third battery component holder part)

[0190] Third connecting device 333 Third snap hook

[0191] 334 Third snap hook holder

[0192] 335 Third positioning pin

[0193] 336 Third recording well

[0194] 340 Fourth battery component holder part

[0195] 341 Fourth side surface (of the fourth battery component holder part)

[0196] 342 Fourth connecting means

[0197] 343 Fourth snap hook

[0198] 344 Fourth snap hook holder

[0199] 345 Fourth positioning pin

[0200] 346 Fourth recording well

[0201] 350 Fifth battery component holder part

[0202] 40 Recording device

[0203] 41 Recording volume (of the recording device)

[0204] 42 inner wall (of the receiving device)

[0205] 43 first receiving opening (of the receiving device)

[0206] 44 second receiving opening (of the receiving device)

[0207] 45 first inner wall section

[0208] 46 second inner wall section

[0209] 47 third inner wall section

[0210] 48 fourth inner wall section

[0211] 49 Floor wall / membrane

[0212] 50 battery component support

[0213] 51 lead

[0214] 52 Narrowing (of the receiving device)

[0215] 60 Free space (between the base of the first battery housing component and the battery components)

[0216] 70 Adhesive device / adhesive tape

Claims

Patent claims 1. Battery housing (1) for accommodating a plurality of battery components (3), comprising a first battery housing component (10); a second battery housing component (20); and at least one battery component holder (30) which has a plurality of receiving devices (40) for accommodating the battery components (3), wherein the battery housing (1) is characterized by the following features: the battery component holder (30) is arranged in a sandwich-like manner between the first battery housing component (10) and the second battery housing component (20); and the battery component holder (30) is materially connected to the first battery housing component (10) and / or to the second battery housing component (20).

2. Battery housing (1) according to claim 1, characterized by the following features: the battery component holder (30) has a plurality of connecting surfaces (31) arranged on the end face of the battery component holder (30); and the battery component holder (30) is integrally connected to the first battery housing component (10) and / or to the second battery housing component (20) by means of the plurality of connecting surfaces (31).

3. Battery housing (1) according to claim 2, characterized in that the connecting surfaces (31) of the battery component holder (30) are each designed as connecting projections (32) which protrude from an end face (33, 34) of the battery component holder (30).

4. Battery housing (1) according to claim 3, characterized in that the connecting projections (32) are arranged adjacent to three receiving devices (40) when viewed from above onto an end face (33, 34) of the battery component holder (30).

5. Battery housing (1) according to one of the preceding claims, characterized by the following features: the first battery housing component (10) has a plurality of connecting projections which are arranged on a base surface (11) facing a receiving volume (2) of the battery housing (1) and extend into the receiving volume (2); and / or the second battery housing component (20) has a plurality of connecting projections which are arranged on a base surface (21) facing the receiving volume (2) of the battery housing (1) and extend into the receiving volume (2); and the battery component holder (30) is materially connected to the first battery housing component (10) and / or to the second battery housing component (20) by means of the plurality of connecting projections.

6. Battery housing (1) according to one of the preceding claims, characterized in that the battery component holder (30) with the first battery housing component (10) and / or is additionally connected to the second battery housing component (20) in a form-fitting and / or force-fitting manner.

7. Battery housing (1) according to one of the preceding claims, characterized by the following features: the battery component holder (30) has a first battery component holder part (310) and a second battery component holder part (320); the first battery component holder part (310) is materially connected to the first battery housing component (10) and the second battery component holder part (320) is materially connected to the second battery housing component (20); a first end face (311) of the first battery component holder part (310) is arranged opposite a second end face (321) of the second battery component holder part (320) and is connected to the latter.

8. Battery housing (1) according to claim 7, characterized by the following features: the first battery component holder part (310) is formed monolithically with the first battery housing component (10); and / or the second battery component holder part (320) is formed monolithically with the second battery housing component (20).

9. Battery housing (1) according to one of the preceding claims, characterized by the following features: the battery component holder (30) has a third battery component holder part (330) and a fourth battery component holder part (340); the third battery component holder part (330) is integrally connected to the first battery housing component (10) and / or to the second battery housing component (20), and the fourth battery component holder part (340) is integrally connected to the first battery housing component (10) and / or to the second battery housing component (20); the third battery component holder part (330) has a third connecting means (332) arranged on a third side surface (331) of the third battery component holder part (330), and / or the fourth battery component holder part (340) has a fourth connecting means (342) arranged on a fourth side surface (341) of the fourth battery component holder part (340); the third battery component holder part (330) is positively connected to the fourth battery component holder part (340) by means of the third connecting means (332) and / or by means of the fourth connecting means (342).

10. Battery housing (1) according to claim 9, characterized by the following features: the third battery component holder part (330) is formed monolithically with the first battery housing component (10) and / or with the second battery housing component (20); and / or the fourth battery component holder part (340) is formed monolithically with the first battery housing component (10) and / or the second battery housing component (20).

11. Battery housing (1) according to one of the preceding claims, characterized by the following features: the receiving devices (40) each have a battery component support (50); and a free space (60) is formed between the respective battery component supports (50) and a base surface (11) of the first battery housing component (10).

12. Battery housing (1) according to claim 11, characterized by the following features: at least one battery component support (50) is designed as a projection (50) which extends from an inner wall (42) delimiting a receiving volume (41) of the receiving device (40) into the receiving volume (41), in which a battery component (3) can be received; and the battery component support (50) is elastically deformable, so that by inserting a battery component (3) into the receiving volume (41) of the receiving device (40), the battery component support (50) is deformed in the direction of the base area (11) of the first battery housing component (10).

13. Battery housing (1) according to claim 11 or 12, characterized by the following features: at least one battery component support (50) is designed as a rib which extends from an inner wall (42) delimiting a receiving volume (41) of the receiving device (40) into the receiving volume (41) into which a battery component (3) can be received; and the at least one rib is elastically deformable, so that by inserting a battery component (3) into the receiving volume (41) of the receiving device (40), the at least one rib is deformed in the direction of the inner wall (42).

14. Battery housing (1) according to one of the preceding claims, characterized by the following features: a first receiving opening (43) of the receiving device (40), which is arranged opposite a base surface (11) of the first battery housing component (10), is closed by means of a bottom wall (49); and the bottom wall (49) is designed such that it is ruptured if a predetermined force exerted on it is exceeded, such as is generated by a battery component (3) inserted into the receiving device (40) in the event of thermal runaway of the battery component (3).

15. Battery housing (1) according to claim 13, characterized in that the bottom wall (49) has at least one predetermined breaking point, preferably a predetermined breaking line.

16. Battery housing (1) according to one of the preceding claims, characterized by the following features: the first battery housing component (10) has a plurality of projections (51) extending from a base surface (11) of the first battery housing component (10) into a receiving volume (2) of the battery housing (1); the battery components (3) can be placed on the projections (51) so that a free space (60) is formed between the base surface (11) of the first battery housing component (10) and the battery components (3).

17. Battery housing (1) according to one of the preceding claims, characterized in that the battery housing (1) has at least one adhesive device (70) which is connected to a receiving volume (41) of the receiving device (30) delimiting inner wall (42) and is designed for adhesive connection to a battery component (3) accommodated in the receiving volume (41).

18. Battery housing (1) according to one of the preceding claims, characterized in that the first battery housing component (10) and / or the second Battery housing component (20) and / or the battery component holder (30) comprise the same material or are formed from the same material or material mix.

19. Battery housing (1) according to one of the preceding claims, characterized in that a height extension of the battery component holder (30) is greater than or equal to a height extension of the battery components (3).

20. Battery () comprising a battery housing (1) according to one of the preceding claims; and a plurality of battery components (3), each of which is received in a receiving device () of the battery component holder (30).

21. Motor vehicle with a battery (4) according to claim 20, wherein the battery (4) is energy-coupled to an electric drive motor of the motor vehicle.

Images