DE102012103149A1 - Method for accommodating traction battery into single open housing for e.g. electric vehicle, involves injecting plastic material apart from portion of pole face at all sides of battery, and curing and removing battery from molding tool - Google Patents

Abstract

The method involves introducing a traction battery (10) in an injection molding tool for molding a housing by extrusion coating of the traction battery with a moldable plastic material. The traction battery is molded with the moldable plastic material, where the plastic material for housing the traction battery is injected apart from a portion of a pole face (16) at all sides of the traction battery. The traction battery is cured and removed from an injection molding tool in the housing. A sealing lip for tight sealing of the housing is provided with the cover. An independent claim is also included for a traction battery.

Description

The present invention relates to a method of incorporating at least one traction battery for an electric vehicle in a one-way open housing and a housed traction battery, housed with such a method.

In known methods for housing a traction battery of an electric vehicle, the housing is formed by connecting a plurality of metallic plates, wherein the plates are usually made of aluminum. The joining of the metallic plates is expensive, since this requires several assembly steps. Furthermore, by joining the metallic plates to form the housing, a completely insulating or tight enclosure can not be created, so that additional assembly steps or additional steps must be provided consuming for adequate or complete sealing.

Underlying task

Compared to the known solutions, it is an object of the invention to provide an alternative method for housing at least one traction battery for an electric vehicle in a housing open on one side and a traction battery housed with such a method.

Inventive solution

This object is achieved with a method for einhausen at least one traction battery for an electric vehicle in a unilaterally open housing with the features of claim 1 and with a housed traction battery with the features of claim 14.

• – Einbringen der Traktionsbatterie in ein Spritzgusswerkzeug zum Formen des Gehäuses durch Umspritzen der Traktionsbatterie mit einem spritzbaren Kunststoffmaterial (Schritt A)
• – Umspritzen der Traktionsbatterie mit dem spritzbaren Kunststoffmaterial, wobei das Kunststoffmaterial zum Einhausen der Traktionsbatterie, abgesehen von wenigstens einem Bereich der Polseite, an alle Seiten der Traktionsbatterie gespritzt wird (Schritt B), und
• – Aushärten und Entnehmen der in dem Gehäuse eingehausten Traktionsbatterie aus dem Spritzgusswerkzeug (Schritt C).

The method according to the invention comprises the following steps, which follow each other in chronological order:

• - Introducing the traction battery in an injection mold for molding the housing by overmolding the traction battery with a sprayable plastic material (step A)
• - Overmolding the traction battery with the plastic sprayable material, wherein the plastic material for housing the traction battery, except for at least a portion of the pole side, is injected to all sides of the traction battery (step B), and
• - Hardening and removal of housed in the housing traction battery from the injection mold (step C).

In contrast to the known method for einhausen a traction battery of an electric vehicle, in which the housing is formed consuming by connecting a plurality of metallic plates, by applying the method according to the invention by the envisaged in step B molding the traction battery with the sprayable plastic material or by the in Step B envisaging injection of the sprayable plastic material to the traction battery to form a housing of the traction battery by making a single injection step or Umspritzungs-step or created. From a complex assembly of the housing of several parts or metallic plates, which must be made in the known solutions by using several assembly steps, can be advantageously dispensed with. By envisaging in step B encapsulation of the traction battery with the sprayable plastic material can be advantageously created an insulating or tight enclosure in the housing open on one side for the traction battery, and without having to provide extra installation steps or additional steps. In particular, injection molding advantageously permits very free shaping, which advantageously also facilitates the molding of additional functions, such as e.g. Screw domes, may include.

Further, by applying the method according to the invention, the enclosure of a plurality of traction batteries in the context of a series production is possible, which can be carried out very efficiently due to the easily and practically executable Umspritzungsschritt or Anspritz-step.

In particular, the inventive method can also be provided for einhausen a plurality of at least two traction batteries in a one-sided open housing.

In step B, apart from at least a portion of the pile side (or at least this portion), the sprayable plastic material is sprayed to all sides of the assembly, the portion being more preferably an area of the pile side on which the poles are provided or on which all poles of the traction battery are provided. Thus, with the traction battery housed, accessibility to all poles can be ensured. Preferably, in order to achieve good accessibility to all poles in step B, the sprayable plastic material, apart from the pole side or apart from the entire pole side (or keeping the pole side or the entire pole side), are sprayed to all sides of the arrangement.

The inventively provided formation of the housing of a sprayable Plastic material also has the advantage that the housing or the chopped traction battery can be formed with respect to the known solutions with a much lower weight. This weight reduction advantageously also makes a significant reduction in the energy consumption of the electric vehicle possible.

The sprayable plastic material may preferably be a thermoplastic material such as e.g. Polyamide (PA), in particular polyamide 6 and polyamide 6.6, polypropylene (PP), polyethylene (PE), POM (polyoxymethylene), polyphenylene sulfide (PPS), polyethersulfone (PES), polyetheretherketone (PEEK), polyetherimide (PEI), polyethylene terephthalate (PET ), comparable technical or high-temperature plastic materials or combinations of the aforementioned plastic materials, which are very well suited for injection molding. Alternatively, the plastic material may also be a duroplastic or a thermosetting plastic material. A duroplastic or a thermosetting plastic material has a high strength in the cured state and is chemically very resistant.

The traction battery comprises at least one, preferably a plurality of battery cells or accumulator cells, which are interconnected or connectable to drive the electric vehicle.

The inventively provided formation of the housing made of the injectable plastic material also has the advantage that tolerances of the battery cells of the traction battery or deviations of the dimensions of the battery cells of target specifications can be compensated much better than in the known solutions based on comparatively rigid metal plates for Einhausen the traction battery resort.

In a particularly preferred embodiment of the method according to the invention, the traction battery has a bottom side opposite the pole side or facing away from the pole side - or it is a traction battery for Einhausen provided or used, which has a side opposite the pole side or facing away from the pole side bottom side And, prior to step A, the traction battery, except for the pole side and the bottom side, is wrapped with a band of fiber reinforced plastic tape material to form a ribbon wrap, and the ribbon wound traction battery is inserted into the injection molding tool in step A and Step B overmoulded with the plastic material.

By the intended wrapping with a band of the fiber-reinforced plastic tape material can be advantageously created by the encapsulation in step B, a unilaterally open housing or a housing for the traction battery, which is very stable by providing the band wrapping of the fiber-reinforced tape plastic material or is designed to be very robust or can be formed. In the encapsulation with the heated or heated plastic sprayable material, the band-plastic material of the band wrapping connects partially or at least partially cohesively with the injectable plastic material, whereby a one-piece housing or a one-piece housing can be formed, which is very stable or very robust is.

In particular, by providing the fiber reinforcement a very stable housing or a very sturdy housing for the traction battery can be created, which has a significantly lower weight compared to the known solutions - which rely on metallic plates for housing the traction battery.

The number of layers of tape wrapping can be advantageously adapted to the respective mechanical requirements.

Preferably, the battery cells are pressed together in the wrapping with the tape when the traction battery has a plurality of successively arranged battery cells. By pressing the battery cells together by wrapping with the tape, the stability of the traction battery can be significantly increased.

The housing which can be produced by means of the above particularly preferred embodiment can also advantageously be adapted to changes in the dimensions or changes in shape of the traction battery or battery cells of the traction battery, which can arise, for example, during temperature changes due to changes in the temperature of the traction battery. In this context, one speaks of the "breathing" or a "bulging" of the battery cells. With these dimensional changes or changes in shape, forces can be generated which are transmitted from the battery cells to the housing and are to be received by the housing or the housing. An enclosure made or provided according to this preferred embodiment advantageously enables adaptation to these dimensional changes or shape changes as a result of the combination of tape wrapping with the molded plastic material and in particular permits free "breathing" or "bulging" of the battery cells, in particular during operation of the Traction battery. The transmitted from the battery cells to the housing or housing forces can be very well compared to the known solutions, which rely on relatively rigid metallic plates for Einhausen the traction battery, in particular due to the much greater flexibility of the plastic material and / or the tape wrapping Without damaging the battery cells or adversely affecting their operation or their efficiency.

Preferably, for fixing the tape wrapping to the traction battery after wrapping and before step A, at least two superimposed band portions of the band are integrally connected to each other, preferably integrally connected by melting the band-plastic material. Due to the cohesive joining of the two superimposed strip sections of the strip, loosening of the strip wrapping, in particular during introduction into the injection-molding tool, is advantageously effectively avoided, along with the creation of a high process reliability.

More preferably, in the above embodiment of the inventive method prior to step A, a U-shaped profile having two legs of fiber reinforced plastic material is provided, and after wrapping, the traction battery is sandwiched between the legs of the U-shaped profile to form an assembly in which the profile region of the U-shaped profile, on which the legs are formed facing the bottom side of the traction battery and each one of two opposite Umwickelungsabschnitten the tape wrapping each one of the legs facing - or one of two opposite sides of the traction battery each one of the legs facing, wherein the arrangement is introduced in step A in the injection mold and in step B, the plastic material, apart from the at least a portion of the pole side, is sprayed to all sides of the assembly, wherein the profile range of the U-shaped profile z is provided to form a reinforcing layer of the bottom of the housing open on one side.

After wrapping, the traction battery, or traction battery, is inserted along with the tape wrapping between the legs of the U-shaped profile to form the assembly. By forming this arrangement comprising the traction battery, the tape wrap and the U-shaped profile, in step B, by injecting the sprayable plastic material, a very sturdy housing can be provided by providing the tape from the fiber reinforced plastic tape material in conjunction with the U-shaped profile or in conjunction with a profile with a U-shaped cross-section. The profile region of the U-shaped profile on which the legs are formed, is advantageously provided for forming the bottom of the housing open on one side, along with the creation of a very stable floor for the housing, which is formed by this profile area and the molded plastic material.

The traction battery is inserted or clamped after wrapping between the legs of the U-shaped profile to form the arrangement or at least partially inserted or clamped between the legs to form the arrangement, so that in particular the tape wrapping between the legs is or at least partially located between the legs, which can be advantageously fixed to the traction battery by inserting the tape wrapping. In the encapsulation or injection molding with the heated or heated sprayable plastic material, the plastic material of the band wrapping connects in particular partially or at least partially cohesively with the plastic material of the U-shaped profile, whereby the stability of the housing is substantially increased, by melting the plastic material of at least one of the connection partners as a result of the heating caused during injection molding or encapsulation with the sprayable plastic material.

Traction battery is trapped particularly advantageous after wrapping between the legs of the U-shaped profile to form the arrangement, whereby a very stable fixation of the tape wrapping to the traction battery is possible. Before inserting or clamping between the legs and after wrapping, the band wrapping on the traction battery can also preferably be fixed in such a way that at least two superimposed strip sections of the strip are firmly bonded to each other before step A by melting the strip plastic material.

In the arrangement formed by the interposition between the legs of the profile region of the U-shaped profile on which the legs are formed, facing the bottom side of the traction battery or preferably has at least partially a contact or a flat contact with the bottom side, and each one of two opposite Umwicklungsabschnitten the tape wrapping is in each case facing one of the legs and preferably has at least partially a contact or a flat contact with the leg.

In an alternative embodiment of the inventive method to the above preferred embodiment, the traction battery has a bottom side opposite the pole side - or a traction battery is provided for Einhausen having a pole side opposite or facing away from the pole side bottom side - and Prior to step A, a U-shaped profile with two legs of fiber reinforced plastics material is provided, and the traction battery is inserted between the legs of the U-shaped profile to form an array, in which the profile area of the U-shaped profile to which the legs are molded, facing the bottom side of the traction battery and each facing one of two opposite sides of the traction battery each one of the legs, wherein the arrangement, apart from the pole side and the profile area, for forming a wrapping the tape wrapping with a ribbon of fiber reinforced plastic tape material, wherein the tape wrapping assembly is inserted into the injection molding tool in step A and in step B the plastic material is injected to all sides of the assembly except for the at least one portion of the pile side is or is sprayed to all sides of the assembly and thereby also to the tape wrapping, wherein the profile region of the U-shaped profile is provided for forming a reinforcing layer of the bottom of the housing open on one side.

This alternative embodiment differs from the previous one in particular in that the insertion or clamping between the legs of the U-shaped profile is carried out before wrapping, wherein advantageously by the wrapping or the band wrapping in particular a stable fixation of the U-shaped profile on the Traction battery can be created or provided. In particular, in the enclosure of a plurality of traction batteries in the context of a series production, this alternative embodiment for process-technical reasons or for the process optimization may be beneficial.

The fiber-reinforced band plastic material and the fiber-reinforced plastic material constituting the U-shaped profile are each made of a plastic material or tape plastic material, which may be a thermoplastic or a thermosetting plastic material in particular, and the fibers, wherein the fibers in the Plastic material matrix or the plastic material are at least partially or completely embedded or wherein the plastic material matrix or the plastic material surrounds the fibers at least partially or wholly. The fibers are preferably the following fibers: mineral fibers, in particular glass fibers, and / or carbon fibers, and / or aramid fibers and / or polymeric fibers, and / or synthetic fibers and / or fibers of renewable raw materials and / or basalt fibers and / or Metal fibers and / or hybrid fibers of two or more of the aforementioned fibers. The at least partial use of metal fibers offer the advantage that a shielding of electromagnetic radiation and thus the so-called EMC (electromagnetic compatibility) of the housing can be improved. The fibers are particularly preferably in the form of continuous fibers or the fibers are continuous fibers having a fiber length of at least 20 mm. By a fiber reinforcement with continuous fibers, which are advantageous for the absorption of forces, a housing can be provided with a high strength, in particular with a very high impact resistance, in which the material of the housing also advantageously has a very low creep.

Also in the above alternative embodiment of the method according to the invention can preferably for fixing the tape wrapping to the arrangement after wrapping and before step (A) at least two superimposed strip portions of the band are materially connected to each other, preferably by melting the strip plastic material.

The U-shaped profile may preferably be provided by deforming a semifinished product, which preferably also consists of the fiber-reinforced tape plastic material. By an identity of the materials provided for the band wrapping and the U-shaped profile can in the encapsulation or injection molding with the heated or heated moldable plastic material in step B, the plastic material of the band wrapping partially or at least partially very good material fit with the plastic material of Join U-shaped profile, by melting the plastic material at least one of the connection partners as a result of the heating or heating caused by injection molding or encapsulation with the sprayable plastic material. Accordingly, the injectable plastic material with the plastic material of the band wrapping and / or the U-shaped profile regionally or at least partially very well materially connect when the plastic material sprayable with the tape plastic material - ie the plastic material in which the fibers are embedded - And / or the plastic material of the U-shaped profile is identical or at least compatible.

In a practical embodiment of the method according to the invention, the injection molding tool has tool elements for molding at least one fastening element on the Bottom of the housing and / or tool elements for molding a circumferential edge surrounding the poles of the pole side, and / or for positively receiving the traction battery in the housing, or an injection molding tool is used, the tool elements for molding at least one fastener to the Bottom of the housing and / or tool elements for molding a circumferential edge, which surrounds the poles of the pole side, and / or for positively receiving the traction battery in the housing. Thus, in step B at least one fastening element at the bottom of the housing and / or a circumferential edge surrounding the poles of the pole side, and / or a positive reception during encapsulation or injection molding with the injectable plastic material can be formed or formed.

By providing the tool elements, it is thus advantageously possible by means of the method according to the invention to create or produce an enclosure for the traction battery which has advantageous functions or means in the form of the fastening element and / or the peripheral edge and / or the positive receptacle. In particular, by the positive reception and the fastening element, a stable attachment of the traction battery to the electric vehicle or the body of the electric vehicle can be ensured especially during operation of the traction battery.

In a further practical embodiment of the method according to the invention, the injection molding tool has tool elements for forming at least one blind hole for receiving a threaded insert with an internal thread, which is provided for screwing on a cover for closing the housing which is open on one side or for closing the open side of the housing, or There is used an injection molding tool having tooling elements for forming at least one blind hole for receiving a threaded insert with an internal thread, which is provided for screwing on a lid for closing the housing on one side or for closing the open side of the housing. Thus, in step B at least one blind hole for receiving a threaded insert with an internal thread during encapsulation or injection molding with the injectable plastic material can be formed.

A housing produced or formed by means of this further practical embodiment can advantageously be closed by the cover and the traction battery can therefore be effectively protected from external influences. In particular, an advantageous penetration of dirt particles can be effectively avoided.

Alternatively, at least one threaded insert with an internal thread can be introduced into the injection molding tool for producing or forming a coverable housing in step A, wherein in step B, the injectable plastic material is also injected to the threaded insert to form a housing open on one side with a threaded insert enclosed in the housing, which is provided for screwing on a cover for closing the housing which is open on one side or for closing the open side of the housing. In particular, in step B, when the peripheral edge surrounding the poles of the pole side is formed, the thread insert can be enclosed therein when the injection molding tool has tool elements for molding this peripheral edge, or when an injection molding tool having such tool elements is used. For forming an enclosure, which advantageously closes tightly and therefore the traction battery very effectively against external influences, such as. Protects dirt particles or moisture, the injection molding tool has tool elements for forming a circumferential sealing lip by multi-component injection molding, wherein the sealing lip for sealing the housing with the lid is provided or an injection molding tool is used, the tool elements for forming the circumferential sealing lip by multi-component injection molding having. Thus, in step B, a circumferential sealing lip can be formed by multi-component injection molding.

The traction battery according to the invention is particularly suitable for electric vehicles such as a motor vehicle which can be operated at least partially electrically or a vehicle which can be operated in a straddle seat, such as e.g. an electric bicycle, or at least partially electrically operable motorcycle or at least partially electrically operable scooter or at least partially electrically operable trike.

Brief description of the drawings

Embodiments of the invention will be explained in more detail with reference to the accompanying drawings. Show it:

1A to 1D schematic sketchy representations to illustrate an embodiment of the method according to the invention,

2 a sketchy schematic plan view of a first embodiment of a traction battery housed with a method according to the invention, and

3 a sketch-like schematic sectional view of a second embodiment of a traced by a process according to the invention traction battery.

The 1A to 1D serve to illustrate an embodiment of the method according to the invention for einhausen a traction battery 10 for an electric vehicle in a one-sided open housing.

The 1B shows a schematic three-dimensional representation of a traction battery to be incorporated by means of the method according to the invention 10 , The traction battery 10 includes six battery cells 12 or is from six battery cells 12 formed, which are arranged successively. Every battery cell 12 (see. 1A ) has two poles 14 on, leaving the traction battery 10 twelve poles 14 has, on the pole side 16 the traction battery 10 are provided. The traction battery 10 also has one of the pole side 16 opposite or from the pole side 16 opposite ground side 18 on.

In the in the 1A to 1D illustrated embodiment of the method according to the invention is provided that before step A - ie before the introduction of the traction battery 10 in an injection molding tool for molding the housing by overmolding the traction battery with a sprayable plastic material - the traction battery 10 , except for the pole side 16 and the bottom side 18 to make a tape wrapping 20 with a band 22 made of a fiber-reinforced tape plastic material 23 is wrapped. This is in 1C which illustrates the state in which the traction battery 10 , except for the pole side 16 and the bottom side 18 , partly already from the band 22 from the fiber reinforced tape plastic material 23 is wrapped. The fiber reinforcement of the belt plastic material 23 by continuous fibers 24 or long fibers 24 is schematically illustrated by dashed lines. The battery cells are preferred 12 when wrapping with the tape 22 pressed together.

After wrapping, tape wrapping can be done 20 on the traction battery 10 preferably be fixed in such a way that at least two superposed band portions of the band 22 be firmly bonded together by melting the band-plastic material.

Further, before step A, a U-shaped profile 26 (see. 1C ) with two thighs 28 made of a fiber-reinforced plastic material (also here is the fiber reinforcement by continuous fibers 24 or long fibers 24 schematically illustrated by dashed lines) and after wrapping - and possibly after the cohesive joining of superposed band sections - the traction battery between the legs 28 of the U-shaped profile 26 for making an arrangement 30 (see. 1D ) inserted or clamped, in which the profile area 32 of the U-shaped profile 26 on which the thighs 28 are molded, the bottom side 18 the traction battery 10 facing and one of two opposite sides of the traction battery 10 each one of the legs 28 facing one or two opposite Umwickelungsabschnitten 34 the band wrapping 20 each one of the legs 28 is facing. The insertion or clamping is schematically in 1C illustrated by an arrow.

After making the arrangement 30 becomes the arrangement 30 in step A in an injection-molded tool 36 (shown only very schematically) introduced (see. 1D ) and in step B of the method according to the invention, the plastic material or the sprayable plastic material, apart from at least a portion of the pole side 16 , on all sides of the arrangement 30 sprayed (not illustrated in detail). The profile area 32 the U-shaped profile is advantageous for forming the bottom of the housing open on one side or the housing of the traction battery 10 intended. After step B, in step C, the curing and removal of traction battery housed in the housing takes place 10 from the injection mold 36 (not illustrated in detail).

The sprayable plastic material is apart from at least a portion of the pile side 16 , on all sides of the arrangement 30 injected, wherein it is in the reserved area around the area of the pole side 16 acts on which the poles 14 are provided or on which all twelve poles 14 the traction battery 10 are provided. So can the fully enclosed traction battery 10 the accessibility to all poles 14 be ensured.

The 2 shows a schematic plan view of a first embodiment of a traced by a process according to the invention traction battery 10 , The in the 2 shown traction battery 10 includes seven consecutively arranged battery cells 12 , The traction battery 10 is by applying a method according to the invention in a one-sided open housing 38 been enclosed or the enclosure 38 was formed by a method according to the invention. For housing or forming the housing open on one side 38 into which the traction battery 10 is housed, an injection molding tool was used, the tool elements for molding four fasteners 40 on the ground 42 of the housing 38 having. Each fastener 40 is with an opening 41 for carrying out a fastening screw (not shown), over which the housing 38 on the body of the electric vehicle can be fastened (not shown).

The 3 shows a schematic sectional view of a second embodiment of a traced by a process according to the invention traction battery 10 , For housing or forming the housing open on one side 38 into which the traction battery 10 is housed here, an injection molding tool was used here, the tool elements for molding a circumferential edge 44 that has the poles 14 the pole side 16 surrounds, with the edge 44 a circumferential section 46 having, for positively receiving the traction battery 10 in the case 38 over the pole side 16 is arranged and molded by means of other tool elements of the injection molding tool, which are provided for the positive reception.

The injection molding tool used also has tool elements for forming two blind holes 48 in the case 38 on, with each blind hole 48 for receiving a threaded insert 50 is provided with an internal thread, for screwing on a lid (not shown) for closing the housing open on one side 38 is provided.

Finally, also tool elements for forming a circumferential sealing lip 52 provided by multi-component injection molding, wherein the sealing lip 52 for sealing the housing 38 is provided with the lid (not shown). The sealing lip is in this case formed by a plastic material having a greater elasticity and a lower hardness compared to the injectable plastic material of the housing.

Claims (14)

Method for housing at least one traction battery ( 10 ) for an electric vehicle in a one-sided open housing ( 38 ), wherein the traction battery ( 10 ) a plurality of at least two poles ( 14 ), which on one pole side ( 16 ) of the traction battery ( 10 ), the method comprising the following steps: (A) introducing the traction battery ( 10 ) in an injection molding tool ( 36 ) for molding the housing ( 38 ) by overmolding the traction battery ( 10 ) with a sprayable plastic material, (B) overmolding the traction battery ( 10 ) with the sprayable plastic material, wherein the plastic material for housing the traction battery ( 10 ), apart from at least one area of the polar side ( 16 ), on all sides of the traction battery ( 10 ), and (C) curing and removing in the housing ( 38 ) housed traction battery ( 10 ) from the injection mold ( 36 ). Method according to claim 1, characterized in that the traction battery ( 10 ) one of the pole side ( 16 ) opposite bottom side ( 18 ), and that before step (A) the traction battery ( 10 ), except for the polar side ( 16 ) and the bottom side ( 18 ), to make a tape wrapping ( 20 ) with a band ( 22 ) of a fiber-reinforced tape plastic material ( 23 ) and that with the tape wrapping ( 20 ) provided traction battery ( 10 ) in step (A) in the injection molding tool ( 36 ) is introduced and encapsulated in accordance with step (B) with the plastic material. Method according to claim 2, characterized in that the traction battery ( 10 ) a plurality of sequentially arranged battery cells ( 12 ), wherein the battery cells ( 12 ) are pressed against each other during the wrapping with the tape. A method according to claim 2 or 3, characterized in that for fixing the tape wrapping ( 20 ) on the traction battery ( 10 ) after wrapping and before step (A) at least two superimposed band sections of the band ( 22 ) are materially connected, preferably by melting the band-plastic material together. Method according to one of claims 2 to 4, characterized in that before step (A) a U-shaped Profile ( 26 ) with two legs ( 28 ) is provided from a fiber-reinforced plastic material, and that after the wrapping the traction battery ( 10 ) between the thighs ( 28 ) of the U-shaped profile ( 26 ) to form an assembly ( 30 ) is inserted, in which the profile area ( 32 ) of the U-shaped profile ( 26 ), on which the legs ( 28 ), the bottom side ( 18 ) of the traction battery ( 10 ) and in each case one of two opposite Umwickelungsabschnitten ( 34 ) tape wrapping ( 20 ) each one of the legs ( 28 ), the arrangement ( 30 ) in step (A) in the injection molding tool ( 36 ) and in step (B) the plastic material, apart from the at least one region of the pole side ( 16 ), to all sides of the order ( 30 ), wherein the profile area ( 32 ) of the U-shaped profile ( 26 ) for forming a reinforcing layer of the soil ( 42 ) of the unilaterally open housing ( 38 ) is provided. Method according to claim 1, characterized in that the traction battery ( 10 ) one of the pole side ( 16 ) opposite bottom side ( 18 ), and that before step (A) a U-shaped profile ( 26 ) with two legs ( 28 ) is provided from a fiber-reinforced plastic material, and that the traction battery ( 10 ) between the thighs ( 28 ) of the U-shaped profile ( 26 ) is inserted to form an arrangement in which the profile area ( 32 ) of the U-shaped profile ( 26 ), on which the legs ( 28 ), the bottom side ( 18 ) facing the traction battery and each one of two opposite sides of the traction battery ( 10 ) each one of the legs ( 28 ), wherein the arrangement, apart from the pole side ( 16 ) and the profile area ( 32 ), to make a tape wrapping ( 20 ) with a band ( 22 ) of a fiber-reinforced tape plastic material ( 23 ) is wrapped, with the tape wrapping ( 20 ) arrangement in step (A) in the injection molding tool ( 36 ) and in step (B) the plastic material, apart from the at least one region of the pole side ( 16 ), is sprayed to all sides of the array, the profile area ( 32 ) of the U-shaped profile ( 26 ) for forming a reinforcing layer of the soil ( 42 ) of the unilaterally open housing ( 38 ) is provided. A method according to claim 6, characterized in that for fixing the tape wrapping ( 20 ) at the arrangement after wrapping and before step (A) at least two superimposed band sections of the band ( 22 ) are materially connected, preferably by melting the band-plastic material together. Method according to one of claims 5 to 7, characterized in that the U-shaped profile ( 26 ) is provided by deforming a semifinished product, which preferably also consists of the fiber-reinforced strip plastic material ( 23 ) consists. Method according to one of claims 2 to 8, characterized in that the sprayable plastic material is identical to the band-plastic material. Method according to one of the preceding claims, characterized in that the injection molding tool ( 36 ) Tool elements for molding at least one fastening element ( 40 ) on the ground ( 42 ) of the housing ( 38 ) and / or tool elements for molding a peripheral edge ( 44 ), the poles ( 14 ) of the pole side ( 16 ) surrounds, and / or for positively receiving the traction battery ( 10 ) in the housing ( 38 ) having. Method according to one of the preceding claims, characterized in that the injection molding tool ( 36 ) Tool elements for forming at least one blind hole ( 48 ) for receiving a threaded insert ( 50 ) having an internal thread which is suitable for screwing on a cover for closing the housing ( 38 ) is provided. Method according to one of claims 1 to 10, characterized in that in step (A) further comprises at least one threaded insert ( 50 ) with an internal thread in the injection molding tool ( 36 ) is introduced, wherein in step (B) the sprayable plastic material also on the threaded insert ( 50 ) is sprayed to form a one-sided open housing ( 38 ) with one in the housing ( 38 ) threaded insert ( 50 ), which is used for screwing on a cover for closing the unilaterally open housing ( 38 ) is provided. Method according to claim 11 or 12, characterized in that the injection molding tool ( 36 ) Tool elements for forming a circumferential sealing lip ( 52 ) by multi-component injection molding, wherein the sealing lip ( 52 ) for sealing the housing ( 38 ) is provided with the lid. Retracted traction battery ( 10 ), enclosed with a method according to one of claims 1 to 13.

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