DE102017217158A1 - Battery case, method for manufacturing a battery case and arrangement with a battery case - Google Patents

Abstract

The invention relates to a battery housing (100) for receiving a plurality of battery modules (14), comprising a housing bottom (10), a housing wall (11) forming a peripheral edge, a housing cover (12), and a plurality of housing modules (11) ) limited interior (13) of the battery case (100) arranged partitions (15) for dividing the interior (13) into a plurality of individual spaces, wherein the housing bottom (10), the housing wall (11), the housing cover (12) and the partitions (15 ) are formed in each case from a fabric-like or occasional base body (16) and from a cladding body (17) formed from a fiber-reinforced plastic material, wherein the cladding body (17) is injection-molded around the base body (16) in an injection molding process.

Description

The invention relates to a battery housing for receiving a plurality of battery modules. Furthermore, the invention relates to a method for producing such a battery case. Furthermore, the invention relates to an arrangement with a battery case and a vehicle attachment.

Battery housings for accommodating several battery modules are used, inter alia, in electric vehicles or in hybrid vehicles. Usually, battery cases are completely formed of a metal material. However, such battery cases have a high weight. Further, it is known to form the battery housing from a pure, unreinforced plastic material, such as a thermoplastic. Although formed from such a plastic material battery housing have a low weight, but their stability is reduced, so that the security is greatly reduced in the case of, for example, an accident.

The invention is therefore an object of the invention to provide a battery case, a method for producing a battery case and an arrangement with a battery case available, in which a reduced weight can be achieved at the same time high stability of the battery case.

The solution of the object according to the invention is achieved by the features of the independent claims. Preferred embodiments and further developments of the invention are specified in the dependent claims.

The battery housing according to the invention comprises a housing bottom, a circumferential edge forming a housing, a housing cover and a plurality of arranged in a limited by the housing interior of the battery housing partitions for dividing the interior into a plurality of individual spaces, wherein the housing bottom, the housing, the housing cover and the partitions are each formed from a fabric-like or occasional base body and from a wrapping body formed from a fiber-reinforced plastic material, wherein the wrapping body is injection-molded around the main body and arranged in an injection molding process.

According to the invention, it is now provided that the individual part of the battery housing, such as the housing bottom, the housing, the housing cover and the partitions, are no longer formed of a single material, but each of at least two different materials, so that the battery case of a so-called Hybrid composite material is formed. For this, each of these parts of the battery case is formed of a base body and a body surrounding the body preferably completely surrounding. Due to the fabric-like or occasional design of the main body, this is characterized by a high rigidity and high strength with a low weight. The fabric-like or occasional design of the main body is preferably provided such that the main body has a kind of network structure. The main body preferably has a multiplicity of tissue-like or randomly deposited fibers, which may be formed from different materials, which may be surrounded by a plastic material, preferably a thermoplastic material. As a result, the basic body can be designed as a so-called prepreg. Due to the special filing of the fibers, the body gets its strength and rigidity. Particularly preferably, the fibers are deposited in the force flow direction in the base body, so that a particularly good stiffening of the body can be achieved, whereby in particular in case of an accident of the motor vehicle safety can be increased. The main body is enclosed by the wrapping body. The wrapping body is formed of a fiber-reinforced plastic material, which also low weight can be achieved while maintaining high strength and rigidity. The fibers of the fiber-reinforced plastic material may be, for example, glass fibers, carbon fibers, aramid fibers and / or metal fibers. The fibers are deposited in a plastic matrix, wherein the plastic matrix are formed for example of polypropylene or polyamide, which are characterized among other things by a low water absorption, high chemical resistance, high impact strength and high temperature stability. During production, the base body can be inserted into a tool, and the covering body can be injection molded around the base body in an injection molding process, so that a particularly good, material-locking connection between the base body and the covering body can be formed.

It is preferably provided that the base body is at least partially formed from a metal material. In this case, the fabric-like or occasionally deposited fibers of the base body may be formed at least partially from metal fibers. Through the use of metal fibers, the strength and rigidity of the body can be further increased.

The main body can be formed, for example, from an organic sheet. Organic sheets are fiber-matrix semi-finished products made from one Fiber fabric or a fiber fabric consist, which are embedded in a thermoplastic matrix. The advantages of a thermoplastic polymer matrix lie in the hot forming capability of the semi-finished products and the resulting short process times. As fibers, for example glass, aramid and carbon fibers can be used. By the fabric-like or occasional deposition of the fibers, the fibers can be perpendicular to each other, so that particularly good stiffness and strength values can be achieved. The material of the plastic matrix of the organic sheet is preferably the same material as the material of the plastic matrix of the fiber-reinforced plastic material of the cladding body, since a particularly good cohesive connection can be achieved during encapsulation of the base body with the cladding body. By such a good cohesive connection, the individual parts of the battery case can have a particularly good tightness, so that the entire battery case can have a particularly good tightness, in particular with respect to moisture or other fluids.

Further, it is possible that the base body may be formed from a three-dimensionally formed textile insert. The textile insert is preferably formed from fiber bundles, so-called fiber rovings, wherein the fiber rovings can each preferably have different types of fibers, so that the fiber rovings can form hybrid rovings. The fiber rovings may for example be fibers of polyamide, polyphthalamide or even carbon. The different fibers can be arranged alternately distributed in the fiber rovings. The formed from a textile insert body can be heated before encapsulation with the envelope body and impregnated in a hot press station and consolidated. Alternatively, the textile inlay may also, if already set in the injection molding tool to be overmolded with the wrapping body, be impregnated and consolidated.

The three-dimensionally formed textile insert can be, for example, a jacquard textile insert. Such a textile insert is woven on a jacquard machine. About the jacquard technique, it is possible to realize a load-oriented tissue structure. All warp threads can be lifted or lowered individually. Due to the different lifting or lowering of the warp threads creates a shed through which the so-called shot is entered. The lifting and lowering can be done by means of a CNC control. A jacquard textile insert is characterized by a particularly fine and rich in patterning, so that the textile insert can have a variety of shapes and configurations. This achieves a great freedom of design. Furthermore, this allows the shape and contour of the fabric to be adapted to the loads occurring particularly well and individually.

It is also possible that the three-dimensionally formed textile insert is a TFP (Tailored Fiber Placement) textile insert. A TFP textile insert is characterized by a particularly load-oriented design, since the fibers of the textile insert can be placed exactly according to the respective load case. Such a reinforcing structure of the textile insert is achieved by sewing individual fiber rovings onto a base material. Thus, a fiber arrangement can be achieved that meets the calculated requirements with respect to the direction and accumulation of fibers. In addition, it can be ensured by additional mandrels that the fibers are gently deflected in order to achieve an ideal power flow through the respective part of the battery housing formed therefrom. The base material, also called a carrier material, may be a textile surface structure, such as a glass fabric, a carbon fabric, a multi-axial fabric or, in the case of thermoplastic reinforcement structures, a wettable film material. The fiber rovings may be formed of glass fibers, carbon fibers, aramid fibers and / or metal fibers, wherein the fiber rovings may also include different types of fibers. If a thermoplastic polymer matrix is used as the base material, the base material in the form of film strips or fibers can be sewn on simultaneously with the reinforcing material formed from fiber rovings. The reinforcing structures are made by the movement of the base material, preferably by means of a CNC control, and the simultaneous fixing of the fiber rovings by the sewing head, so that the fiber rovings can be stored in any direction and quantity. As well as with the jacquard method, it is thus also possible, with this method, to position the fibers in the base body precisely in accordance with the loading direction.

The housing bottom, the housing wall and the partition walls may preferably be connected to one another by means of an adhesive connection. The assembly of the battery case can be done very easily and easily. As the adhesive, a two-component adhesive may preferably be used. The two-component adhesive may have an elastic component, whereby, for example, different thermal expansions of the individual parts of the battery case can be compensated and thereby the occurrence of stresses within the parts of the battery case can be avoided.

In order to further simplify the manufacture and assembly of the battery housing, the housing bottom and / or the housing wall and / or the housing cover and / or the partition walls can each be formed from one or more plate elements. The plate elements can then be connected to one another, for example by means of the adhesive connection.

In the housing bottom and / or in the housing wall may be formed a cooling channel structure, which serves to cool the battery case. The cooling channel structure preferably has one or more cooling channels, through which a cooling medium can flow in order to be able to remove heat from the interior of the battery housing. The cooling channel structure may for example be designed such that it can be inserted into the housing bottom and / or the housing wall.

For example, the cooling channel structure may be formed by a metal profile which is introduced into the housing bottom and / or into the housing wall. As a result, a particularly simple installation of the cooling channel structure in the battery housing is possible. The metal profile may be, for example, an aluminum extruded profile. The cooling channel structure can then be formed, for example, in the form of a plate element, which can be inserted into a receiving space on the housing bottom and / or into a receiving space on the housing wall.

In order to enable a continuous detection of the state of the battery case, so that early damage to the battery case can be detected, it is preferably provided that in the housing bottom and / or in the housing wall and / or in the housing cover and / or in the partitions at least a damage state detection sensor is integrated.

For example, the damage condition detection sensor may include a resistance measuring device for measuring the resistance of fibers of the fiber reinforced plastic material of the covering body. In this case, the electrical conductivity of the fibers, in particular when using carbon fibers, and their change in the resistance under load of the battery case can be used. By monitoring the change in resistance, a good statement about the damage condition can be made. For example, fiber breaks and / or failure-critical load situations can be detected and reported by means of such a damage condition detection sensor.

Further, it is possible that the damage condition detection sensor is formed by a light guide introduced into the cladding body. As a light guide, for example, glass fibers can be used, which are integrated in the housing bottom and / or the housing wall and / or the housing cover and / or in the partitions. The glass fibers can be introduced, for example, as glass fiber rovings. By means of the use of a light guide, it is possible to optically evaluate an example pulsed signal. The evaluation can be done by connecting the battery case to a bus system of the motor vehicle. The incoming signal can then provide information about the damage condition of the respective part of the battery case.

Furthermore, it is also possible that the damage state detection sensor is an RFID sensor. Such an RFID sensor (RFID = Radio Frequency Identification Detector) can be used in particular at very risk of fracture sites of the battery case.

In addition, it is also possible for at least one electrical temperature, humidity and / or pressure sensor to be integrated in the housing bottom and / or in the housing wall and / or in the housing cover and / or in the partitions. By means of such sensors, a further function monitoring of the battery housing can take place.

The object of the invention is further achieved by means of a method for producing a battery housing for receiving a plurality of battery modules, having a housing bottom, a housing wall forming a peripheral edge, a housing cover, and a plurality of partitions arranged in an interior of the battery housing bounded by the housing wall for subdividing the housing Interior in a plurality of individual rooms, wherein the housing bottom, the housing, the housing cover and the partitions are each formed of a fabric-like or occasional base body and formed of a fiber-reinforced plastic material envelope body, wherein the envelope body is injection molded in an injection molding process around the body and arranged.

With regard to the advantages and further embodiments of the method according to the invention, reference is made to the statements above. The main body may be formed in the form of a prepreg, so that it can be processed in a prepreg pressing process. The prepregs can be positioned as roll goods in a calender by feeding a release film and assembled. For example, a prepreg may be one in one be embedded thermoplastic fabric matrix, which is heated, for example by means of infrared emitters, and can be welded with a prefabricated, partially reinforced with carbon fibers thermoplastic matrix. The base body thus formed from two semifinished products can then be placed in an injection mold, so that by means of pressure and temperature, the two semifinished products forming the main body can be materially connected to one another in the injection mold and can be reshaped by a closing movement of the injection mold. Subsequently, the base body in the same injection mold with a fiber-reinforced plastic material, which forms the cladding body, are encapsulated. Due to the fact that the shaping of the base body and the arrangement of the covering body around the base body can take place in one and the same tool, the number of necessary process steps for forming a battery housing can be substantially reduced. In addition, a particularly good adhesion of the wrapping body to the base body can be achieved.

Furthermore, the solution of the object according to the invention is achieved by means of an arrangement which has a battery housing as described above and further developed vehicle attachment, wherein between the battery housing and the vehicle attachment a bush-shaped joining element is disposed of a metal material, wherein at least one outer side of the joining element, which in contact with the battery case is coated with an organic sheet.

The joining element serves to transmit power between the battery housing and the vehicle attachment, in that the joining element transmits torques. The transmission can be done by a frictional connection, a positive connection, a prestressed positive connection or a material connection. The joining element may for example be a winding bush. For weight reduction, the joining element is preferably formed from an aluminum material. In order to avoid contact corrosion between the joining element and the battery housing, at least the outer side of the joining element, which is in contact with the battery housing, coated with an organic sheet. Before the joining element is brought into its actual shape, in particular punched and wound, the outer side of the joining element is coated with the organic sheet, preferably by the joining element is pressed with the organic sheet. In order to achieve a good cohesive connection between the outside of the joining element and the organic sheet, an adhesive layer, in particular a primer, can be applied between the outside of the joining element and the organic sheet.

It is preferably provided that, in addition to the outside of the joining element, an inner side of the joining element is also coated with a further organic sheet. The coating of the inside of the joining element is preferably carried out simultaneously with the coating of the outside of the joining element, preferably by simultaneously pressing on a double belt press the joining element both on its outside and on its inside with an organ sheet. Also between the inside of the joining element and the organic sheet is preferably an adhesive layer, in particular a primer, applied in order to achieve a particularly good cohesive connection between the organic sheet and the inside of the joining element can.

Further, measures improving the invention will be described below with reference to the description of preferred embodiments of the invention with reference to the following figures.

• 1 eine schematische Darstellung einer Draufsicht von oben auf ein Batteriegehäuse gemäß der Erfindung mit darin aufgenommenen Batteriemodulen,
• 2 eine schematische Schnittdarstellung entlang einer Längsseite des Batteriegehäuses gemäß der Erfindung,
• 3 eine schematische Explosionsdarstellung des Batteriegehäuses gemäß der Erfindung,
• 4 eine schematische Schnittdarstellung durch einen Teil einer Gehäusewandung des Batteriegehäuses gemäß der Erfindung,
• 5 eine schematische Darstellung eines Grundkörpers gemäß der Erfindung,
• 6 eine schematische Darstellung einer Anordnung gemäß der Erfindung,
• 7a eine schematische Schnittdarstellung einer Ausgestaltung eines Fügeelements der in 6 gezeigten Anordnung, und
• 7b eine schematische Schnittdarstellung einer weiteren Ausgestaltung eines Fügeelements der in 6 gezeigten Anordnung.

Show it:

• 1 a schematic representation of a top view of a battery housing according to the invention with therein incorporated battery modules,
• 2 a schematic sectional view along a longitudinal side of the battery case according to the invention,
• 3 a schematic exploded view of the battery case according to the invention,
• 4 a schematic sectional view through a part of a housing wall of the battery housing according to the invention,
• 5 a schematic representation of a basic body according to the invention,
• 6 a schematic representation of an arrangement according to the invention,
• 7a a schematic sectional view of an embodiment of a joining element of in 6 shown arrangement, and
• 7b a schematic sectional view of another embodiment of a joining element of in 6 shown arrangement.

The 1 to 3 show schematically in different views a battery case 100 according to the invention, which can be used for example in an electric vehicle or a hybrid vehicle.

The battery case 100 has a housing bottom 10 a housing wall forming a peripheral edge 11 and a housing cover 12 on. The housing wall 11 forms an outer wall of the battery case 100 off and limited together with the caseback 10 and the housing cover 12 an interior 13 of the battery case 100 , inside which several battery modules 14 can be arranged.

The interior 13 is divided into several individual rooms, wherein in each individual room each have a battery module 14 can be included. The subdivision of the interior 13 done by means of partitions 15 in the interior 13 are arranged. The partitions 15 are arranged in such a way that they form box-like individual spaces.

The caseback 10 , the housing wall 11 , the housing cover 12 and the partitions 15 are each formed of individual plate elements, which for the formation of the battery case 100 be connected to each other. In the embodiment shown here, the housing bottom 10 formed of two juxtaposed plate elements. The housing wall 11 is formed of four, at right angles to each other arranged plate elements, so that each plate member is a side wall of the battery case 100 formed. The housing cover 12 is like the case back 10 formed of two juxtaposed plate elements. As partitions 15 seven plate elements are provided, wherein a plate member is centered over the entire length of the battery case 100 extends and the remaining plate elements are arranged transversely to this plate member.

The caseback 10 , the housing wall 11 , the housing cover 12 and the partitions 15 are interconnected by means of an adhesive bond. As the adhesive, for example, a two-component adhesive can be used. The two-component adhesive may have an elastic component, whereby, for example, different thermal expansions of the individual parts 10 . 11 . 12 . 15 of the battery case 100 can be compensated and thereby the occurrence of tensions within the parts 10 . 11 . 12 . 15 of the battery case 100 can be avoided.

At the in 2 and 3 shown embodiment is on the two plate elements of the housing bottom 10 each one in the direction of the interior 13 pointing side surface a recess 18 formed, in which a cooling channel structure 19 recorded, in particular inserted or inserted can be. The cooling channel structure 19 is here each formed in the form of a plate-shaped metal profile, within which a plurality of cooling channels 20 are formed. The metal profile may be an aluminum continuous cast profile.

To early damage, such as microcracks, on the battery case 100 can determine in the case back 10 and / or in the housing wall 11 and / or in the housing cover 12 and / or in the partitions 15 one or more damage condition detection sensors 21 be integrated. In the embodiment shown here is an example of such a damage condition detection sensor 21 on the housing wall 11 shown as in 3 you can see. The damage condition detection sensor 21 Can continuously change the condition of the battery case 100 capture, so that when a damage condition occurs, a warning can be issued early. The damage condition detection sensor 21 can be designed in various ways. In the embodiment shown here, the damage condition detection sensor 21 an RFID sensor.

To the functionality of the battery case 100 can further improve, in the case back 10 , the housing wall 11 , the housing cover 12 and / or the partitions 15 one or more electrical sensors 22 be integrated, which may be formed, for example, as temperature sensors and / or humidity sensors and / or pressure sensors. In the embodiment shown here is an example of such a sensor 22 on the housing cover 11 shown as in 3 you can see.

The caseback 10 , the housing wall 11 , the housing cover 12 and the partitions 15 are each made of a fabric-like or occasional body 16 and one of a cladding body formed with fiber reinforced plastic material 17 formed, as in the sectional view of 4 based on a plate element of the housing wall 11 is shown schematically. The wrapping body 17 is in an injection molding process around the main body 16 injected, so that a cohesive connection between the main body 16 and the wrapping body 17 is trained.

The main body 16 has a plurality of fabric-like or random deposited fibers, which may be formed of different materials, which are surrounded by a plastic material, preferably a thermoplastic material. This allows the main body 16 be designed as a so-called prepreg. The fibers are deposited in the embodiment shown here such that they form a network structure. Due to the special filing of the fibers receives the basic body 16 its strength and rigidity. The the basic body 16 forming fibers are deposited in the direction of force flow, so that a particularly good stiffening of the body 16 can be achieved, which in particular in the case of an accident of the motor vehicle safety can be increased.

As can be seen in the sectional view, is the main body 16 from the wrapping body 17 completely enclosed. The wrapping body 17 is made of a fiber-reinforced plastic material, which also low weight can be achieved while maintaining high strength and rigidity. The fibers of the fiber-reinforced plastic material may be, for example, glass fibers, carbon fibers, aramid fibers and / or metal fibers. The fibers are deposited in a plastic matrix, wherein the plastic matrix can be formed for example of polypropylene or polyamide, which are characterized among other things by a low water absorption, high chemical resistance, high impact strength and high temperature stability. In the embodiment shown here, the fibers of the wrapping body 17 formed as continuous fibers, which are stored in the direction of force flow in the plastic matrix. But it is also possible to use short fibers, which are introduced into the plastic matrix.

In the production of the basic body 16 for example, in the form of a prepreg are placed in the injection mold, are heated in this, are formed by a closing movement of the mold halves in the desired shape, and then the wrapping body 17 Without the tool would have to be changed to the basic body 16 be sprayed around so that a particularly good, cohesive connection between the body 16 and the wrapping body 17 can be trained.

5 shows an embodiment of a base body 16 in which the fibers are deposited in a network structure. Here are plastic fibers 23 and metal fibers 24 , For example, in the form of metal wires, deposited to each other so that they form a network structure.

Further, it is also possible that the main body 16 is designed as an organic sheet or a three-dimensional textile insert. The textile inlay can be, for example, a jacquard textile inlay or a TFP textile inlay.

6 shows an arrangement 200 with a battery case 100 and a vehicle attachment 30 , which have a bush-shaped joining element 31 connected to each other. The joining element 31 Used for power transmission between the battery case 100 and the vehicle attachment 30 by the joining element 31 Can transmit torques. The joining element 31 is designed here as a winding bush.

To contact corrosion between the joining element 31 and the battery case 100 to be able to avoid is at the in 7a shown embodiment, the outside 32 of the joining element 31 which is in contact with the battery case 100 is, with an organic sheet 33 coated. Before the joining element 31 is brought into its actual form, in particular punched and wound, the outside becomes 32 of the joining element 31 with the organic sheet 33 coated, preferably by the joining element 31 with the organic sheet 33 is pressed. To have a good cohesive connection between the outside 32 of the joining element 31 and the organic sheet 33 Being able to reach is an adhesive layer 34 , in particular a primer, between the outside 32 of the joining element 31 and the organic sheet 33 applied.

In 7b a further embodiment is shown in which not only the outside 32 of the joining element 31 with an organic sheet 33 coated, but also the inside 35 of the joining element 31 with another organo sheet 36 is coated, so that the Fügelement 31 from both sides with an organic sheet 33 . 36 is coated. The coating of the inside 35 of the joining element 31 is preferably carried out simultaneously with the coating of the outside 32 of the joining element 31 , Preferably by the joining element on a double belt press 31 both on its outside 32 as well as on its inside 35 each with an organic sheet 33 . 36 is pressed at the same time.

Also between the inside 35 of the joining element 31 and the organic sheet 36 is an adhesive layer in the embodiment shown here 37 , in particular a primer, applied to a particularly good material bond between the organic sheet 36 and the inside 35 of the joining element 31 to reach.

The invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a number of variants is conceivable, which makes use of the solutions shown even in fundamentally different versions. All features and / or advantages resulting from the claims of the description or the drawings, including structural details of spatial arrangements and method steps, can be essential to the invention, both individually and in the most diverse combinations.

LIST OF REFERENCE NUMBERS

100

battery case

200

arrangement

10

caseback

11

housing

12

housing cover

13

inner space

14

battery module

15

partition wall

16

body

17

covering body

18

recess

19

Cooling channel structure

20

cooling channel

21

Damage state detection sensor

22

sensor

23

synthetic fibers

24

metal fibers

30

Vehicle attachment

31

joining element

32

outside

33

organosheet

34

adhesive layer

35

inside

36

organosheet

37

adhesive layer

Claims (14)

Battery housing (100) for accommodating a plurality of battery modules (14), with a housing bottom (10), a peripheral wall forming a housing wall (11), a housing cover (12), and a plurality of partition walls (15) arranged in an inner space (13) of the battery housing (100) delimited by the housing wall (11) for subdividing the inner space (13) into a plurality of individual rooms, wherein the housing bottom (10), the housing wall (11), the housing cover (12) and the partitions (15) are each formed of a fabric-like or occasional base body (16) and formed of a fiber-reinforced plastic material sheath body (17), wherein the wrapping body (17) is injected and arranged around the base body (16) in an injection molding process. Battery housing (100) after Claim 1 , characterized in that the base body (16) is at least partially formed of a metal material. Battery housing (100) after Claim 1 or 2 , characterized in that the base body (16) is formed from an organic sheet. Battery housing (100) after Claim 1 or 2 , characterized in that the base body (16) is formed from a three-dimensionally formed textile insert. Battery housing (100) after Claim 4 , characterized in that the textile insert is a jacquard textile insert. Battery housing (100) after Claim 4 , characterized in that the textile insert is a TFP textile insert. Battery housing (100) according to one of Claims 1 to 6 , characterized in that in the housing bottom (10) and / or in the housing wall (11) and / or in the housing cover (12) and / or in the partitions (15) at least one damage condition detection sensor (21) is integrated. Battery housing (100) after Claim 7 characterized in that the damage condition detecting sensor (21) comprises a resistance measuring means for measuring the resistance of fibers of the fiber reinforced plastic material of the wrapping body (17). Battery housing (100) after Claim 7 or 8th , characterized in that the damage condition detecting sensor (21) is formed by a light guide introduced into the wrapping body (17). Battery housing (100) according to one of Claims 7 to 9 , characterized in that the damage condition detection sensor (21) is an RFID sensor. Battery housing (100) according to one of Claims 1 to 10 , characterized in that in the housing bottom (10) and / or in the housing wall (11) and / or in the housing cover (12) and / or in the partitions (15) at least one electrical temperature, humidity and / or pressure sensor (22) is integrated. A method of manufacturing a battery case (100) for receiving a plurality of Battery modules (14) having a housing bottom (10), a peripheral edge forming a housing wall (11), a housing cover (12), and a plurality of in a by the housing (11) limited interior space (13) of the battery case (100) arranged partitions (15) for subdividing the interior space (13) into a plurality of individual spaces, wherein the housing bottom (10), the housing wall (11), the housing cover (12) and the partitions (15) each consist of a fabric-like or occasional base body (16) and a cladding body (17) formed from a fiber-reinforced plastic material are formed, wherein the cladding body (17) is injection molded around the base body (16) in an injection molding process. Arrangement (200) with a battery housing (100) according to one of Claims 1 to 11 and a vehicle attachment (30), wherein between the battery housing (100) and the vehicle attachment (30) a bush-shaped joining element (31) made of a metal material is arranged, wherein at least one outer side (32) of the joining element (31), which in contact with the Battery housing (100) is coated with an organic sheet (33). Arrangement (200) according to Claim 13 , characterized in that an inner side (35) of the joining element (31) with a further organo sheet (36) is coated.

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