Battery housing component for a battery housing, battery housing for accommodating a variety of battery components, and battery with a battery housing

Abstract

The present invention relates to a battery housing component (10) for a battery housing (2), comprising a plurality of receiving devices (20) for receiving a plurality of battery components (3). The battery housing component (10) has a number of through-openings (30) corresponding to the plurality of receiving devices (20), which are formed in a base (11) of the battery housing component (10), wherein, in a top view of the base (11) of the battery housing component (10), each through-opening (30) is at least partially enclosed by a receiving device (20), and wherein the battery housing component (10) has a sealing layer (40) for sealing the through-openings (30), the sealing layer (40) being materially bonded to the base (11) of the battery housing component (10).The present invention further relates to a battery housing (2) comprising a battery housing component (10) and to a battery (1) comprising a battery housing (2) and a plurality of battery components (3).

Description

The present invention relates to a battery housing component for a battery housing, a battery housing for receiving a plurality of battery components and a battery having a battery housing.A battery, in particular a traction battery for energy storage in a motor vehicle, has a multiplicity of battery components, for example battery cells, which, starting from a certain temperature, enter into an irreversible chemical decomposition process and in the process release a large amount of the stored energy by oxidation in a short time. An initially closed battery cell builds up pressure and bursts at a predefined location at which a hot gas jet exits at a high speed and fills a receiving volume of a battery housing with gas. The pressure in the receiving volume arising from the gas which arises and collects in the receiving volume must be reduced in order to avoid uncontrolled escape of the gas from the battery housing.In battery housings known from the prior art, the gas escapes via an opening or a predetermined breaking point in a wall of the battery housing when a predetermined overpressure is exceeded.The object of the invention is to provide a battery housing component which enables an improved controlled release of gas which is produced from a battery housing and at the same time enables immersion cooling, in particular two-phase immersion cooling.The object underlying the present invention is achieved by a battery housing component having the features of claim 1. Advantageous embodiments of the battery housing component are described in the claims dependent on claim 1.More specifically, the object underlying the present invention is achieved by a battery housing component for a battery housing, wherein the battery housing component has a plurality of receiving devices for receiving a plurality of battery components and a number of through-openings corresponding to the plurality of receiving devices, which are formed in a base of the battery housing component. In a plan view of the base of the battery housing component, a through-opening is in each case at least partially surrounded by a receiving device. The battery housing component has a sealing layer for sealing the through-openings, wherein the sealing layer is connected to the base of the battery housing component in a materially integral manner.If reference is made below to an intended use or to an intended use of a battery housing component, this use or use is to be understood, for example, as a use or use as a battery housing component for a battery housing of a battery having a multiplicity of battery components (e.g. battery cells).A battery housing component formed in this way has the advantage that the battery housing component enables immersion cooling, in particular two-phase immersion cooling, of battery components in intended use and at the same time enables improved protection against uncontrolled gas escape from a receiving volume of a battery housing during an irreversible chemical decomposition process of the battery components. The gas jet emerging from a battery component during the chemical decomposition of the battery components penetrates the sealing layer in the region of a passage opening, so that a gas located in the receiving volume is discharged from the receiving volume in an improved and controlled manner. As a result, the pressure within the receiving volume is simultaneously reduced and the temperature is lowered. In the normal operating mode of the battery, that is to say during operation without an irreversible chemical decomposition process, the sealing layer seals the passage openings in a fluid-tight manner in spite of the overpressures and underpressures in a receiving volume of the battery housing generated by the immersion cooling, in particular by the two-phase immersion cooling.In the event of a negative pressure in a receiving volume of a battery housing which has a battery housing component according to the invention, the sealing layer is deformed in the direction of the receiving volume in the region of the through openings in the base of the battery housing component. In other words, the sealing layer bulges in the region of the through-openings of the base of the battery housing component in the direction of the receiving volume of the battery housing.In the event of an overpressure in a receiving volume of a battery housing which has a battery housing component according to the invention, the sealing layer is deformed in the direction away from the receiving volume in the region of the through-openings in the base of the battery housing component. In other words, the sealing layer bulges in the region of the through-openings of the base of the battery housing component in the direction away from the receiving volume.A through-opening, which is surrounded by a receiving device in a plan view of the base of the battery housing component, is bordered by the receiving device. In other words, a free cross-sectional area of the through-opening is smaller than a receiving area which is at least partially delimited by the receiving device in a plan view of the base of the battery housing component. Furthermore, the cross-sectional area of the through-opening, which is free in a plan view of the base of the battery housing component, lies completely within the receiving area partially delimited by the receiving device.Preferably, the plurality of receptacles correspond to the plurality of receivable battery components. In other words, a respective battery component can be inserted in a respective receiving device.The battery components can be formed as battery cells, in particular as cylindrical battery cells. Preferably, the cylindrical battery cells may have the 4680 format. Alternatively or additionally, the battery components can be designed as battery modules.The battery housing component is preferably designed to accommodate 500 or more battery cells, in particular 700 or more battery cells.Preferably, the battery housing component, and further preferably, the base of the battery housing component comprises or is formed from a plastic, in particular a thermoplastic. The plastic can be formed as polyamide and / or as polyamide 6 and / or as polypropylene.A battery housing component formed in this way has the advantage that the battery housing component can be produced in a simplified manner.The battery housing component is preferably designed as an injection-molded component.A battery housing component formed in this way has the advantage that the battery housing component can be produced once again in a simplified manner, in particular in a production step.More preferably, the battery housing component, and even more preferably the bottom of the battery housing component, comprises fibers. The fibers can be formed as glass fibers and / or as carbon fibers and / or as aramid fibers. The battery housing component preferably comprises a polyamide 6 with 30-40% glass fiber content and / or a polypropylene with 30-40% glass fiber content.A battery housing component formed in this way has the advantage that the battery housing component has improved stability, in particular improved mechanical rigidity.The sealing layer preferably comprises a plastic, in particular a thermoplastic, or is formed from this. The plastic can be formed as polyamide and / or as polyamide 6 and / or as polypropylene. Even more preferably, plastic of the sealing layer is not fiber-reinforced, i.e. preferably no fibers are embedded in the plastic of the sealing layer.A battery housing component formed in this way has the advantage that the sealing layer can burst in a simplified manner.Further preferably, the base has a greater thickness extension than the sealing layer.The sealing layer preferably has a thickness extension between 0.4 mm and 2 mm, further preferably between 0.5 mm and 1.8 mm, and even further preferably between 1 mm and 1.5 mm.A battery housing component formed in this way has the advantage that the battery housing component, when used as intended, has improved protection against uncontrolled gas escape from a receiving volume of the battery housing during an irreversible chemical decomposition process of the battery components and at the same time enables sufficient fluid tightness for immersion cooling, in particular two-phase immersion cooling. The thickness extension of the sealing layer is just thick enough that the sealing layer can withstand the overpressions and suppression occurring in the receiving volume by means of immersion cooling, in particular two-phase immersion cooling, and at the same time can be broken through by a gas jet emerging from a battery component in the region of a through-opening, so that the gas arising is led out of the receiving volume.The battery housing component is preferably designed as a battery housing shell. The battery housing component can also be referred to as a battery housing lower shell or generally as a lower shell.The battery housing component preferably delimits a receiving volume at least partially.The through openings preferably have a circular free cross-sectional area.The receiving devices are preferably arranged on an inner surface of the base of the battery housing component facing the receiving volume.A battery housing component formed in this way has the advantage that the battery components can be accommodated in a simplified manner in the accommodation volume of the battery housing component.The inner surface of the floor is arranged opposite the connecting surface of the floor. In other words, the inner surface of the base of the battery housing component is the surface of the base of the battery housing component opposite the connecting surface.Preferably, the sealing layer is connected in a materially integral manner to the inner surface of the base of the battery housing component facing the receiving volume.A battery housing component formed in this way has the advantage that the battery housing component has improved fluid tightness. When the sealing layer is connected to the inner surface of the bottom of the battery housing component, the number of sealing points facing the receiving volume is reduced. As a result, the sealing points between the passage openings and the sealing layer are arranged facing away from the receiving volume.Preferably, the battery housing component is configured such that the sealing layer comprises a material having a melt flow index of greater than or equal to 35 g / 10 min.The melt flow index of a material describes the flow behavior of a material under certain pressure and temperature conditions. The melt flow index of a material is determined, for example, according to ISO 1133. The melt flow index of a material can be expressed as a melt volume flow rate or a melt mass flow rate. A melt flow index, referred to as the melt volume flow rate, is the unit cm 3 / 10 min. A melt flow index, referred to as a melt mass flow rate, is in the unit g / 10 min. The value ranges indicated for the melt flow index apply in particular to a determination according to ISO 1133 at a test temperature of 230° C. and a test weight of 2.16 kg.A battery housing component formed in this way has the advantage that the sealing layer breaks more reliably when a predetermined pressure is exceeded within a battery housing in which the battery housing component formed accordingly is installed.Preferably, the battery housing component is configured such that the sealing layer comprises a material having a melt flow index of greater than or equal to 60 g / 10 min.Preferably, the battery housing component is configured such that the sealing layer comprises a material having a melt flow index of less than or equal to 90 g / 10 min.Particularly preferably, the battery housing component is configured such that the sealing layer comprises a material having a melt flow index in a range from 35 g / 10 min to 90 g / 10 min.Preferably, the battery housing component is configured such that the battery housing component at least partially delimits a receiving volume for receiving a plurality of battery components, wherein the sealing layer is connected in a materially integral manner to a connecting surface of the base of the battery housing component facing away from the receiving volume.A battery housing component formed in this way has the advantage that the battery housing component can be produced in a simplified manner, in particular can be produced in a simplified manner in one production step.Preferably, the sealing layer is connected in an injection molding process in a materially integral manner to the connecting surface of the base of the battery housing component.A battery housing component formed in this way has the advantage that the battery housing component can be produced once again in a simplified manner.Alternatively, the sealing layer is connected in a materially integral manner to the connecting surface of the base of the battery housing component by welding and / or by adhesive bonding.Preferably, the sealing layer is additionally connected in a force-fitting and / or form-fitting manner to the connecting surface of the base of the battery housing component.Preferably, the battery housing component is formed in such a way that the sealing layer is connected to the base of the battery housing component in such a way that the through-openings are completely closed by the sealing layer.In a plan view of the base of the battery housing component, the free cross-sectional areas of the through-openings are completely closed by the sealing layer and in particular sealed in a fluid-tight manner. In other words, the sealing layer covers the through-openings of the base of the battery housing component in a plan view of the base, in particular in a plan view of the connecting surface of the base of the battery housing component. Consequently, the through-openings are closed in a fluid-tight manner by the sealing layer, such that the sealing layer resists an excess pressure and / or a reduced pressure in a receiving volume of a battery housing, which excess pressure is generated, for example, by immersion cooling, in particular two-phase immersion cooling. A battery housing component formed in this way consequently has the advantage that the battery housing component has improved fluid tightness when used as intended.Preferably, the battery housing component is configured such that the sealing layer has at least one reinforcing rib which extends from the sealing layer into a free cross-sectional area of a through-opening.When the battery housing component is used as intended, a free space is formed in each case between a battery component inserted in a receiving device, in particular a bottom surface of the battery component and the sealing layer. In other words, battery components inserted in the receiving devices are arranged spaced apart from the sealing layer.A battery housing component formed in this way has the advantage that the battery housing component has improved stability when used as intended. The reinforcing rib extending into the free cross-sectional area of the through-opening comes into contact with the bottom surface of a battery component which is inserted into the receiving device enclosing the through-opening, under a negative pressure in the receiving volume, as a result of a deformation of the sealing layer in the region of the through-opening. This limits the deformation of the sealing layer and thus improves the stability of the battery housing component.Preferably, the reinforcing rib extends from the sealing layer through a through-opening into a receiving volume partially delimited by the battery housing component.A battery housing component formed in this way has the advantage that the battery housing component has an even further improved stability when used as intended. The reinforcing rib protrudes as far as into the receiving volume of the battery housing, as a result of which the distance from the bottom surface of a battery component inserted in a receiving device is reduced. As a result, the deformation of the sealing layer in the region of this through-opening is reduced and the stability of the battery housing component is thus improved once more.The reinforcing rib preferably has a distance from a battery component inserted in a receiving device, in particular from a base surface of a battery component inserted in the receiving device.Alternatively, the reinforcing rib is in contact with a battery component inserted into the receiving device, in particular with the bottom surface of the battery component.A battery housing component formed in this way has the advantage that the battery housing component has an even further improved stability when used as intended. Because the reinforcing rib is in contact with a battery component inserted in a receiving device, the deformation of the sealing layer in the region of the through-opening is reduced once again on account of a reduced pressure in the receiving volume.Preferably, the sealing layer is disposed on the inner surface of the bottom of the battery housing component, and the sealing layer includes at least one reinforcing rib extending from the sealing layer into the receiving volume.A battery housing component formed in this way has the advantage that the battery housing component has an even improved stability when used as intended, in particular in the event of a reduced pressure in the receiving volume.The reinforcing rib is preferably connected to the sealing layer, in particular connected in a materially bonded manner and preferably formed monolithically with the sealing layer.A battery housing component formed in this way has the advantage that the battery housing component can be produced in a simplified manner.Two components formed monolithically with one another are produced from a coherent piece of material and are connected to one another in particular without joints.Preferably, the sealing layer has a plurality of reinforcing ribs, wherein a plurality of reinforcing ribs each extend from the sealing layer into a free cross-sectional area of a through-opening.A battery housing component formed in this way has the advantage that the battery housing component has an even improved stability in intended use, in particular in the event of a negative pressure in the receiving volume.Preferably, the battery housing component is configured such that at least one receiving device has at least one receiving elevation which extends from an inner surface of the base of the battery housing component into a receiving volume at least partially delimited by the battery housing component.A battery housing component formed in this way has the advantage that the battery housing component, when used as intended, enables an even improved protection against uncontrolled gas escape from a receiving volume of a battery housing during an irreversible chemical decomposition process of the battery components. The battery components of a battery can be inserted into the receiving devices in such a way that the receiving elevations hold the battery components inserted into the receiving devices in the position inserted into the receiving device even during an irreversible chemical decomposition process. This in particular prevents gas emerging from the battery components from reaching adjacent battery components, so that the emerging gas is conducted out of the receiving volume almost exclusively through the passage openings in the base of the battery housing component.Preferably, the battery housing component is configured such that each receiving device has at least one receiving elevation, which extends from an inner surface of the base of the battery housing component into a receiving volume at least partially delimited by the battery housing component.The receiving elevation can be connected to the base of the battery housing component in a materially integral manner. Preferably, the receiving elevation is formed monolithically with the base of the battery housing component.The receiving elevation can be formed cylindrically; in particular, the receiving elevation can be formed as a pin. An upper region of the receiving elevation can be designed to taper conically.A battery housing component formed in this way has the advantage that the battery housing component can be produced in a simplified manner and at the same time a battery component inserted in a receiving device can be positioned in the receiving device in an improved manner.At least one receiving elevation, preferably exactly one receiving elevation, is preferably arranged in each case adjacent to four through-openings of the base of the battery housing component on the base of the battery housing component. A receiving elevation arranged in this way can be a component of up to four mutually adjoining receiving devices. In other words, four different receiving devices can have the same receiving elevation.A battery housing component formed in this way has the advantage that the battery housing component can be produced in a simplified manner. Because a receiving elevation is a component of more than one receiving device, the number of required receiving elevations can be reduced with the same number of receiving devices.The receiving area bounded by the receiving elevation is preferably greater than or equal to a cross-sectional area of a battery component.A battery housing component formed in this way has the advantage that battery components can be used in a simplified manner in the battery housing component.Preferably, the receiving elevation at least partially delimits a receiving surface of a receiving device. The receiving surface delimited by the receiving elevation is preferably circular.A battery housing component formed in this way has the advantage that cylindrical battery cells can be used in an improved manner in the battery housing component.The receiving elevation is preferably formed as a circular rib formed in one piece. Consequently, the receiving elevation is formed in the shape of a hollow cylinder.A battery housing component formed in this way has the advantage that the battery housing component can be produced in a simplified manner and that, at the same time, cylindrical battery cells can be used in the battery housing component in a further improved manner.Preferably, the receiving devices each have three, preferably four, receiving elevations.The receiving elevations of a receiving device are preferably arranged equidistantly with respect to one another. In particular, the receiving elevations of a receiving device are arranged on a circular contour delimiting the receiving surface in an angle-equidistant manner to one another.Preferably, the battery housing component is configured such that the battery housing component has an underbody which is connected at least indirectly to the floor of the battery housing component, wherein a cavity for receiving a gas which is produced in the receiving volume is formed between the sealing layer and the underbody.A battery housing component formed in this way has the advantage that the battery housing component, when used as intended, enables an even improved protection against uncontrolled gas escape from a receiving volume of a battery housing during an irreversible chemical decomposition process of the battery components. A gas which arises in the receiving volume and is ejected during an irreversible chemical decomposition process from battery components arranged in the receiving volume can break through the sealing layer in the region of the passage openings and be received in the cavity between the sealing layer and the underbody. This prevents overpressure in the receiving volume and uncontrolled gas escape from the receiving volume.The underbody is preferably connected indirectly via a side wall of the battery housing component to the floor of the battery housing component.The underbody preferably has the same material as the battery housing component or is formed therefrom.A battery housing component formed in this way has the advantage that the battery housing component can be produced in a simplified manner.The underbody preferably has a connecting region.The underbody is preferably connected at least indirectly, preferably directly, to the floor of the battery housing component in the connection region of the underbody.The underbody is preferably connected to the sealing layer in the connection region of the underbody, preferably connected to the sealing layer in a materially bonded manner, wherein the sealing layer is arranged in a sandwich-like manner between the floor of the battery housing component and the underbody.A battery housing component formed in this way has the advantage that the battery housing component, when used as intended, has improved protection against uncontrolled gas escape during an irreversible chemical decomposition process. Because the underbody is connected to the sealing layer in a materially integral manner in the connection region, the cavity formed between the sealing layer and the underbody has an even further improved fluid tightness.The underbody is preferably shell-shaped. The underbody preferably has a circumferential flange. The connecting region of the underbody is preferably formed on the circumferential flange. The encircling flange preferably forms the connecting region of the underbody.A battery housing component formed in this way has the advantage that the battery housing component, when used as intended, enables an even more improved protection against uncontrolled gas escape during an irreversible chemical decomposition process. The cavity formed between the sealing layer and the underbody has an increased volume, such that a greater amount of gas can be absorbed from the receiving volume. As a result, an overpressure in the receiving volume is reduced once more.The underbody is preferably designed as an underbody protection.A battery housing component formed in this way has the advantage that the battery housing component has improved stability, in particular improved mechanical rigidity.Preferably, the battery housing component is configured such that the underbody is connected at least indirectly to the floor of the battery housing component in a materially integral manner.Preferably, the underbody is connected at least indirectly to the floor of the battery housing component by means of welding and / or adhesive bonding.Preferably, the underbody is connected in a materially integral manner to an outer surface of the battery housing component in the connection region of the underbody.The connecting region of the underbody is preferably formed on an edge of the underbody surrounding the underbody.The underbody is preferably connected, in particular bonded, to a circumferential edge region of the connecting surface of the floor of the battery housing component.The battery housing component is preferably designed such that the underbody has at least one outlet opening for discharging the gas which is produced in the receiving volume and / or is received in the cavity.In the case of the battery housing component of corresponding design, gas discharged through the through-openings of the base of the battery housing component is discharged to the environment via the receiving volume and via the at least one outlet opening.A battery housing component formed in this way has the advantage that the battery housing component is counteracted in the receiving volume and in the cavity when used as intended.The battery housing component is preferably designed in such a way that the battery housing component has at least one support rib which is arranged between the sealing layer and the underbody.A battery housing component formed in this way has the advantage that the battery housing component has improved stability when used as intended. By means of a support rib between the sealing layer and the underbody, the battery housing has improved stability against an overpressure, as occurs during immersion cooling, in particular 2-phase immersion cooling, in the receiving volume of the battery housing.Preferably, the support rib extends from the sealing layer in the direction of an underbody inner surface of the underbody facing the sealing layer and is connected to the sealing layer, in particular connected in a materially bonded manner. Alternatively formulated, the support rib extends from an outer side of the sealing layer facing the underbody in the direction of the underbody and is connected, in particular connected in a materially bonded manner, to the sealing layer.Preferably, the support rib is in contact with the underbody inner surface of the underbody, in particular in direct contact. In other words, the support rib is not connected to the underbody inner surface of the underbody.Alternatively, the support rib is monolithically connected to the underbody. The support rib is alternatively in contact with the outer side of the sealing layer, preferably in direct contact. In other words, the support rib is not connected to the outside of the sealing layer.A battery housing component formed in this way has the advantage that the battery housing component can be produced in a simplified manner, in particular can be produced in one production step.Preferably, the support rib is monolithically connected to the sealing layer.The support rib is surrounded by a through-opening in a plan view of the base of the battery housing component. In other words, the support rib is arranged in the region of a through-opening of the base of the battery housing component.A support rib, which is surrounded by a through-opening in a plan view of the base of the battery housing component, is surrounded by the through-opening. In other words, a cross-sectional area of the support rib is smaller than a cross-sectional area of the through-opening which is free in a plan view of the base of the battery housing component. The cross-sectional area of the support rib lies completely within the free cross-sectional area of the through-opening.The support rib can be cylindrical or hollow cylindrical. Alternatively, the support rib can have a rectangular and preferably a square cross-sectional area.The present invention is also based on the object of providing a battery housing which enables an improved controlled release of gas which is produced from the battery housing and at the same time enables immersion cooling, in particular two-phase immersion cooling.This object on which the present invention is based is achieved by a battery housing which has a battery housing component described above, wherein the battery housing has a battery housing cover which is connected to the battery housing component in such a way that a receiving volume for receiving the plurality of battery components is formed.A battery housing formed in this way has the advantage that the battery housing enables improved immersion cooling, in particular two-phase immersion cooling, of battery components accommodated in the accommodation volume of the battery housing and at the same time enables improved protection against uncontrolled gas escape from the accommodation volume of the battery housing during an irreversible chemical decomposition process of the accommodated battery components. The gas jet emerging from a battery component during the chemical decomposition of the battery components penetrates the sealing layer in the region of a passage opening, so that a gas located in the receiving volume is discharged from the receiving volume in a controlled manner. As a result, the pressure within the receiving volume is simultaneously reduced and the temperature is lowered. In a normal operating mode of a battery which has a battery housing according to the invention, the sealing layer seals the passage openings in a fluid-tight manner despite the overpressures and underpressures in the receiving volume of the battery housing which are generated by the immersion cooling, in particular by the two-phase immersion cooling.The battery housing cover is preferably designed as a battery housing shell. The battery housing cover can also be referred to as a battery housing upper shell or generally as an upper shell.A battery housing formed in this way has the advantage that the battery housing has an enlarged receiving volume.The battery housing cover can be designed as a further battery housing component described above.The battery housing cover can be designed as a substantially planar component.The battery housing cover preferably comprises the same material as the battery housing component or is formed from this.The battery housing cover is preferably designed as an injection-molded component.The battery housing cover is preferably connected to the battery housing component in a materially integral manner.A battery housing formed in this way has the advantage that the battery housing has an even further improved protection from uncontrolled gas escape from the receiving volume of the battery housing. Due to the material-to-material connection between battery housing component and battery housing cover, the receiving volume has improved fluid tightness.The present invention is also based on the object of providing a battery which enables a controlled release of gas which is produced from a battery housing and at the same time enables immersion cooling, in particular two-phase immersion cooling.This object on which the present invention is based is achieved by a battery having a battery housing described above and a multiplicity of battery components, wherein in each case one battery component is inserted in in in each case one receiving device of the battery housing component.A battery constructed in this way has the advantage that the battery enables immersion cooling, in particular two-phase immersion cooling, of the battery components and at the same time enables improved protection against uncontrolled gas escape from the battery during an irreversible chemical decomposition process of the battery components. The gas jet emerging from a battery component during the chemical decomposition of the battery components penetrates the sealing layer in the region of a passage opening, so that a gas located in the receiving volume is discharged from the receiving volume in an improved and controlled manner. As a result, the pressure within the receiving volume is simultaneously reduced and the temperature is lowered. In a normal operating mode of the battery, the sealing layer seals the passage openings in a fluid-tight manner despite the overpressures and underpressures in the receiving volume of the battery housing generated by the immersion cooling, in particular by the two-phase immersion cooling.At least one battery component is inserted in a receiving device in such a way that the battery component completely covers the through opening enclosed by the receiving device in a plan view of the floor, in particular in a plan view of the inner surface of the floor. Because the free cross-sectional area of the through-opening has a smaller area than the cross-sectional area of the battery component inserted into the receiving device, the bottom surface of the battery component is in contact with the receiving surface of the receiving device, wherein the through-opening is completely covered by the bottom surface of the battery component. Thereby, a clearance is formed between the bottom surface of the battery component and the sealing layer. Cooling fluid for immersion cooling, in particular two-phase immersion cooling, can be accommodated in this free space.The battery is preferably designed such that at least one battery component is connected in a materially integral manner to a receiving surface of the receiving device in which the battery component is inserted.The receiving surface is preferably connected to the bottom surface of the battery component in a materially integral manner.The battery component is preferably additionally connected to an inner wall of at least one receiving elevation in a materially integral manner.A battery constructed in this way has the advantage that the battery has an even improved protection against uncontrolled gas escape from the receiving volume of the battery housing. The at least one battery component is inserted in the receiving device in an even more improved manner by the additional cohesive connection to the inner wall of the receiving elevation, so that in the case of an irreversible chemical decomposition process the battery component is held fixed in the receiving device and a gas jet exits the receiving volume only through the through-opening of the base of the battery component.The battery is preferably designed in such a way that the battery component is bonded to the receiving surface by means of an adhesive, wherein the adhesive has a heat resistance up to a temperature of 600° C.An adhesive with a heat resistance up to a temperature of 600° C. maintains its material connection at temperatures of up to 600° C. In particular, such an adhesive does not begin to decompose on its own, so that its fixing effect remains even at temperatures of up to 600° C.The adhesive is preferably designed as a silicone adhesive.Preferably, the battery component is additionally connected to an inner wall of at least one receiving elevation by means of the adhesive in a materially integral manner.A polyurethane (PU), in particular a polyurethane foam, can be arranged between the battery components of the battery. The polyurethane and / or polyurethane foam may have a heat resistance of up to 120° C.The present invention is also based on the object of providing a motor vehicle which enables a controlled release of gas which is produced from a battery housing of a battery and at the same time enables immersion cooling, in particular two-phase immersion cooling, of the battery components of the battery.This object underlying the present invention is achieved by a motor vehicle having a battery described above.The present invention is also based on the object of providing an injection molding method which enables a cost-effective and simple production of a battery housing component described above.This object underlying the present invention is achieved by an injection molding method for producing a previously described battery housing component by means of an injection molding tool, wherein the injection molding tool has a first tool half and a second tool half. The injection molding process comprises the following process steps:injecting a fiber-reinforced plastic material into the injection mold in the closed position;moving the first mold half of the injection molding mold so that a free space is formed between the first mold half and the fiber-reinforced plastic located in the second mold half; andinjecting a fiber-free plastic into the injection mold, so that the fiber-reinforced plastic located in the second mold half is overmolded by the fiber-free plastic until the free space is filled.Further advantages, details and features of the invention are evident below from the explained exemplary embodiments. In this context, the following show in detail: FIG. 1 : a plan view of a battery housing component according to the invention; FIG. 2 : a sectional illustration of a battery according to the invention, which has a battery housing according to the invention with a battery housing component according to the invention illustrated in FIG. 1 ; and FIG. 3 : a sectional illustration of a battery in the region of a receiving device according to a further embodiment.In the description which follows, the same reference numerals designate the same components or the same features, so that a description with respect to a component carried out with respect to a figure also applies to the other figures, so that a repetitive description is avoided. Furthermore, individual features that have been described in connection with an embodiment can also be used separately in other embodiments.FIG. 1 shows a battery housing component 10 for a battery housing 2 illustrated in FIG. 2 in a plan view of a base 11 of the battery housing component 10. Furthermore, the battery housing component 10 has a number of through-openings 30, which corresponds to the plurality of receiving devices 20, and which are formed in the base 11 of the battery housing component 10. In a plan view of an inner surface 112 of the base 11 of the battery housing component 10, a through-opening 30 is in each case surrounded by a receiving device 20. In other words, a through-opening 30 is surrounded by a receiving device 20.The receiving devices 20 each have a receiving elevation 21, which each extend from the inner surface 112 of the base 11 of the battery housing component 10 into a receiving volume 4 at least partially delimited by the battery housing component 10. The receiving elevations 21 are each formed as circular ribs formed in one piece, which are monolithically connected to the base 11 of the battery housing component 10. The receiving elevations 21 each delimit a receiving surface 22 of the receiving device 20, wherein the receiving surface 22 is of circular design. The receiving elevation 21 and the receiving surface 22 and the through-opening 30 are arranged concentrically with respect to one another.FIG. 2 shows a battery 1 according to the invention in a sectional illustration, wherein the battery 1 has a battery housing 2 according to the invention with a battery housing component 10 according to the invention in the form of a battery housing lower shell 10. The battery 1 has a plurality of battery components 3, wherein in each case one battery component 3 is inserted in in each case one receiving device 20 of the battery housing component 10. In the illustrated battery 1, the battery components 3 are each embodied as battery cells 3.The battery housing 2 has a battery housing cover 7, which is connected to the battery housing component 10 in such a way that a receiving volume 4 for receiving the plurality of battery components 3 is formed.The battery housing component 10 has a sealing layer 40 for sealing the through-openings 30, wherein the sealing layer 40 is connected to the base 11 of the battery housing component 3 in a materially integral manner, such that the through-openings 30 are completely closed by the sealing layer 40.The sealing layer 40 is connected in a materially integral manner to a connecting surface 111 of the base 11 of the battery housing component 10 facing away from the receiving volume 4. The connecting surface 111 of the base 11 is the surface of the base 11 of the battery housing component 10 opposite the inner surface 112.The battery housing component 10 has an underbody 50 which is directly connected to the floor of the battery housing component 10, wherein a cavity 60 for receiving a gas which forms in the receiving volume is formed between the sealing layer 40 and the underbody 50.The underbody 50 has an outlet opening 51 for discharging the gas which is produced in the receiving volume 4 and is received in the cavity 60 to the environment.FIG. 3 shows a sectional illustration of a battery 1 in the region of a receiving device 20 according to a further embodiment. A battery component 3 inserted in the receiving device 20 is connected in a materially integral manner to the receiving surface 22 of the receiving device 20. In addition, the battery component 3 is connected to an inner wall 211 of the receiving elevation 21 of the receiving device 20 in a materially integral manner.The sealing layer 40 of the battery housing component 10 has reinforcing ribs 41 which extend from the sealing layer 40 into a free cross-sectional area 31 of the through-opening 30.The battery component 3 is inserted into the receptacle 20 in such a way that a clearance 6 is formed between a bottom surface 5 of the battery component 3 and the sealing layer 40. Cooling fluid for immersion cooling, in particular two-phase immersion cooling, can be accommodated in this free space 6.The battery housing component 10 includes a support rib 70 disposed between the sealing layer 40 and the underbody 50. The support rib 70 extends from the sealing layer 40 in the direction of an underbody inner surface 52 of the underbody 50 facing the sealing layer 40 and is connected to the sealing layer 40 in a materially integral manner. The support rib 70 is in direct contact with the underbody inner surface 52 of the underbody 50. The support rib 70 is surrounded by the through-opening 30 in a plan view of the base 11 of the battery housing component 10. In other words, the support rib 70 is bordered by the through-opening 30 in a plan view of the base 11 of the battery housing component 10. The support rib 70 is designed as a hollow cylinder.List of reference characters1 Battery 2 Battery case 3 Battery component 4 Accommodation volume 5 Bottom surface (of the battery component) 6 Clearance (between the bottom surface of the battery component and the sealing layer) 7 Battery case lid 10 Battery case component 11 Bottom (of the battery case component) 111 Connection surface (of the bottom) 112 Inner surface (of the bottom) 20 Accommodation device 21 Accommodation boss (of the accommodation device) 211 Inner wall (of the accommodation boss) 22 Accommodation surface (of the accommodation device) 30 Passage openings 31 Free cross section (of the passage opening) 40 Sealing layer 41 Reinforcing rib (of the sealing layer) 50 Underbody 51 Outlet opening 52 Underbody inner surface 60 Cavity 70 Supporting rib

Claims

Battery housing component (10) for a battery housing (2), having - a multiplicity of receiving devices (20) for receiving a multiplicity of battery components (3); and - a number of through-openings (30) corresponding to the multiplicity of receiving devices (20), which are formed in a base (11) of the battery housing component (10), - wherein, in a plan view of the base (11) of the battery housing component (10), in each case one through-opening (30) is at least partially surrounded by in each case one receiving device (20), wherein the battery housing component (10) is characterized by the following feature: - the battery housing component (10) has a sealing layer (40) for sealing the through-openings (30), wherein the sealing layer (40) is connected to the base (11) of the battery housing component (10) in a materially integral manner.Battery housing component (10) according to Claim 1, characterized in that the sealing layer (40) comprises a material having a melt flow index of greater than or equal to 35 g / 10 min.Battery housing component (10) according to Claim 1 or 2, characterized bythe following features: - the battery housing component (10) delimits a receiving volume (4) for receiving the multiplicity of battery components (3) at least partially; and - the sealing layer (40) is connected in a materially integral manner to a connecting surface (111), facing away from the receiving volume (), of the base (11) of the battery housing component (10).Battery housing component (10) according to one of the preceding claims, characterized in that the sealing layer (40) is connected to the base (11) of the battery housing component (10) in such a way that the through-openings (30) are completely closed by the sealing layer (40).Battery housing component (10) according to one of the preceding claims, characterized in that the sealing layer (40) has at least one reinforcing rib (41), which extends from the sealing layer (40) into a free cross-sectional area (31) of a through-opening (30).Battery housing component (10) according to one of the preceding claims, characterized in that at least one receiving device (20) has at least one receiving elevation (21) which extends from an inner surface (112) of the base (11) of the battery housing component (10) into a receiving volume (4) which is at least partially delimited by the battery housing component (10).Battery housing component (10) according to one of the preceding claims, characterized bythe following features: - the battery housing component (10) has an underbody (50) which is at least indirectly connected to the floor (11) of the battery housing component (10); and - a cavity (60) for receiving a gas which is produced in the receiving volume (4) is formed between the sealing layer (40) and the underbody (50).Battery housing component (10) according to Claim 7, characterized in that the underbody (50) is connected at least indirectly to the floor (11) of the battery housing component (10) in a materially integral manner.Battery housing component (10) according to Claim 7 or 8, characterized in that the underbody (50) has at least one outlet opening (51) for discharging the gas which is produced in the receiving volume (4) and / or is received in the cavity (60).Battery housing component (10) according to one of Claims 7 to 9, characterized in that the battery housing component (10) has at least one supporting rib (70) which is arranged between the sealing layer (40) and the underbody (50).Battery housing (2) for accommodating a plurality of battery components (3), comprising: - a battery housing component (10) according to one of the preceding claims; and - a battery housing cover (7) which is connected to the battery housing component (10) in such a way that an accommodating volume (4) for accommodating the plurality of battery components (3) is formed.Battery (1), comprising: - a battery housing (2) according to Claim 11; and - a multiplicity of battery components (3), wherein in each case one battery component (3) is inserted in in each case one receiving device (20) of the battery housing component (10).Battery (1) according to Claim 12, characterized in that at least one battery component (3) is connected in a materially integral manner to a receiving surface (22) of the receiving device (21) in which the battery component (3) is inserted.Battery (1) according to Claim 13, characterized in that the battery component (3) is bonded to the receiving surface (22) by means of an adhesive, wherein the adhesive has a heat resistance up to a temperature of 600°C.Motor vehicle, comprising a battery (1) according to one of Claims 12 to 14.Injection moulding method for producing a battery housing component (10) according to one of Claims 1 to 10 by means of an injection moulding tool, wherein the injection moulding tool has a first tool half and a second tool half, and wherein the injection moulding method comprises the following method steps: - injecting a fibre-reinforced plastic into the injection moulding tool which is in the closed position; - moving the first tool half of the injection moulding tool such that a free space is formed between the first tool half and the fibre-reinforced plastic which is located in the second tool half; and - injecting a fibre-free plastic into the injection moulding tool such that the fibre-reinforced plastic which is located in the second tool half is overmolded by the fibre-free plastic.

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