Battery module, its manufacturing method and use

Abstract

The present invention relates to a battery module, comprising: a first housing element (31) including a plurality of cylindrical first storage portions (41) in which a first plurality (21) of battery cells (2) electrically interconnected in series and / or parallel are housed; a second housing element (32) including a plurality of cylindrical second storage portions (42) in which a second plurality (22) of battery cells (2) electrically interconnected in series and / or parallel are housed; and a first base (51) in which the first storage portions (41) are arranged. The second housing element (32) has a second base (52) in which a second storage section (42) is arranged, the first base (51) and the second base (52) are arranged to form a storage space (6) in which a cell connector (7) for electrically connecting the first plurality (21) of battery cells (2) and the second plurality (22) of battery cells (2) in series and / or parallel is accommodated, and in addition to the storage space (6), the first base (31) and / or the second base (32) further form a third storage section (43) in which a control unit (10) of the battery module (1) is accommodated.

Description

[Technical field]

[0001] The invention is based on a battery module with a plurality of cylindrical battery cells according to the field of the independent claims. A method for producing such a battery module and the use of such a battery module are also the subject of the invention. [Background technology]

[0002] According to the prior art, it is known that a battery module may consist of a number of individual battery cells which may be electrically interconnected in series and / or parallel, i.e. these individual battery cells are interconnected to form a battery module.

[0003] Furthermore, such battery modules are interconnected to form an overall battery or battery system.

[0004] In particular, for light electric vehicles, also known in English as LEVs (light electric vehicles), relatively light and preferably scalable battery systems can be constructed, in which a large number of relatively small, usually cylindrically shaped battery cells can be interconnected into a battery module or even a battery.

[0005] To monitor the battery cells of a battery module, control units, also known as battery management systems (BMS), are usually used. These control units are coupled with sensors located in the battery cells, for example for voltage or temperature measurement. Such control units usually have many terminals and are cumbersome to wire.

[0006] For example, documents EP3472877A1 and US Patent Application Publication No. 2014 / 0234668 each disclose a battery module including a plurality of battery cells. Summary of the Invention

[0007] A battery module with a plurality of cylindrical battery cells having the features of the independent claims offers the advantage that existing installation space can be efficiently utilized. In particular, the height of the battery module can be reduced by arranging the control unit in the third accommodation. Furthermore, complicated wiring, e.g. by means of cable harnesses, can be made unnecessary.

[0008] For this purpose, a battery module is provided which comprises a number of cylindrical battery cells, in particular configured as lithium-ion battery cells.

[0009] The battery module includes a first housing element having a plurality of cylindrical first receiving compartments in which a first plurality of battery cells are received, the battery cells being electrically interconnected in series and / or parallel.

[0010] The battery module includes a second housing element having a plurality of cylindrical second receiving compartments in which a second plurality of battery cells are received, the battery cells being electrically interconnected in series and / or parallel.

[0011] The first housing element further includes a first base in which the first receiving portion is disposed, and the second housing element includes a second base in which the second receiving portion is disposed.

[0012] The first and second substrates are joined to each other while forming an accommodation space, in which cell connectors are disposed for electrically connecting the first and second plurality of battery cells in series and / or parallel.

[0013] Furthermore, the first base body and / or the second base body form, in addition to the accommodation space, a third accommodation portion in which the control unit of the battery module is accommodated. In particular, the first base body and the second base body together form the third accommodation portion.

[0014] The measures recited in the dependent claims enable advantageous modifications and improvements of the device presented in the independent claims.

[0015] An embodiment of the battery module according to the invention offers the particular advantage that cylindrically shaped battery cells can be directly accommodated by the first or second housing element, which can for example eliminate additional cell holder elements. It should be noted here that the first and second housing elements can in particular also be referred to as half shells of the housing of the battery module which together constitute this housing.

[0016] It should be noted here that cylindrical battery cells may also be called round cells. A cylindrical battery cell has a substantially cylindrical outer surface with a circular cross section, and both opposite sides are closed by a circular bottom or cover surface. A cylindrical battery cell that does not have a casing made of, for example, plastic, but includes a conductive housing made of, for example, a metal material, is particularly preferred, and is a round cell of the 18650 or 21700 type having a diameter of about 18 mm and a height of about 65 mm, or a diameter of about 21 mm and a height of about 70 mm, respectively. The housing of this cylindrical battery cell is normally negatively charged and constitutes the negative voltage tap of each battery cell. Furthermore, the positive voltage tap of the battery cell is arranged on the cover surface, and this positive voltage tap is electrically insulated from the housing and thus from the negative voltage tap.

[0017] In summary, in this case, an electrical connection of the first and second plurality of battery cells can be formed, and a cell connector may be arranged in the first or second substrate. Furthermore, the cell connector is arranged between the first and second plurality of battery cells. The third housing also accommodates a control unit of the battery module. The control unit of the battery module is in particular a battery management system (BMS).

[0018] The cylindrical receptacles here are each hollow bodies at least partially defined by a cylindrical side surface with a circular cross section. The cylindrical receptacles furthermore have a similarly defined bottom surface at the bottom side of the cylindrical receptacle. On the side opposite to the bottom side, the cylindrical hollow body has an opening through which the battery cell can be inserted into the receptacle. In this regard, it should be noted here that the battery cell can be directly received in the respective receptacle, for example without arranging an insulating layer and for example without air.

[0019] In this respect, in one first or second receiving section in particular exactly one battery cell is respectively received.

[0020] Arranging the receptacles on the base body of the housing element means that the receptacles are, for example, integrally joined to the base body, which has an opening corresponding to the opening of the cylindrical hollow body of the receptacle. A battery cell can thus be inserted into the respective receptacle through the opening of the base body or through the opening of the receptacle. In this respect, it is preferred that the, for example, circular cross section of the battery cell is arranged in direct contact with the respective circular cross section of the cylindrical hollow body of the receptacle. In addition to this, it is particularly advantageous if a material joint is formed between the housing of the respective battery cell and the receptacle. Such a material joint can be realized, for example, by means of an adhesive or paste, and can result in an optimal thermal connection between the respective battery cell and the respective receptacle.

[0021] According to a preferred embodiment of the invention, the first and second substrates are connected to one another with a positive joint. Such a joint can be produced particularly simply. Of course, the first and second substrates can also be connected to one another with a force joint, in particular with a force and positive joint. Such a joint can additionally be produced, for example, by screwing. The first and second substrates can also be connected to one another with a material joint. Such a material joint can be produced, for example, by plastic welding of polymer materials.

[0022] It is particularly preferred that the first and second base bodies are joined to one another by a fold joint. In this respect, it is particularly preferred if the fold joint is formed so as to surround the entire joint between the first and second base bodies. For this purpose, for example, the first base body may have a first fold element and the second base body may have a second fold element, which fold elements may be joined by corresponding fold joints in a form-fit or in a form-fit and force-fit manner. In this regard, for example, the first fold element may be inserted into the second fold element to form the fold joint. In order to form a particularly secure joint, the first fold element and / or the second fold element may be further deformed after insertion.

[0023] Overall, this allows for a tightly formed joint between the first and second housing elements to be formed, which joint may also meet corresponding standards, for example with regard to tightness. For this purpose, inter alia, the first and / or second fold element may comprise corresponding sealing elements in order to further increase the tightness. For example, the sealing elements may be integrated into the fold elements.

[0024] It is particularly preferred that such a fold joint can also simultaneously form at least one guide rail, which is formed for accommodating the battery module in the vehicle. This can provide a relatively easy insertion of the battery into the vehicle, and the fold joint can further provide a secure fixation of the battery in the vehicle. Overall, this allows the battery of the vehicle to be easily replaced.

[0025] Furthermore, a holding or carrying handle can be integrated into the fold joint. The holding or carrying handle can also be formed as a holding or carrying band. It is also possible for the fold joint to be formed, for example, in such a way that the holding or carrying handle can be easily attached or the holding or carrying band can be easily positioned. In this case, in particular, the tightness is not impaired.

[0026] It is advantageous if the third receiving portion is integrated into the fold joint, which allows the third receiving portion to be easily formed, in particular allowing a connection between the control unit and the first battery cells or the second battery cells for monitoring the battery cells to be easily formed as well.

[0027] According to a preferred embodiment of the present invention, the battery module comprises an electric terminal. The electric terminal is integrated into the first substrate and / or the second substrate. The electric terminal is configured, inter alia, for drawing off a voltage from the battery module or for charging a plurality of battery cells. It is particularly preferred that the battery module comprises two electric terminals, for example one positive electric terminal and one negative electric terminal. In particular, the one or more electric terminals are each configured as a plug-in connection. Overall, this allows the battery module to be electrically connected, for example, to a vehicle. The advantage of the plug-in connection is a very simple connection. It should further be noted here that it is preferred that the electric terminals can be integrated into the turn-up joint, in such a way that the turn-up joint is implemented with a relatively large width at the location of the electric terminal.

[0028] It should be noted that the insertion direction of the battery module into the vehicle preferably also determines the plug-in direction. It is advantageous to determine the final arrangement of the electronic terminals only at the end of the assembly process. This allows one design to accommodate different insertion directions and therefore allows the battery module design to be better adapted to a wide variety of vehicle types without design changes.

[0029] It is particularly preferred that the electrical and / or electronic terminals are arranged on the side of the first and / or second base body which is arranged perpendicular to the fold joint formed as a guide rail, so that a particularly reliable connection with the vehicle or charging equipment can be formed.

[0030] It is further noted here that it is preferred that the fold-back joint is implemented with a relatively large width at the location of the electrical terminal or the third receiving part, so that the electrical terminal and the third receiving part can be integrated into the fold-back joint. It is particularly preferred that the electrical terminal and / or the third receiving part are arranged on the side of the first base body and / or the second base body that is arranged perpendicular to the fold-back joint formed as a guide rail. This allows a particularly reliable connection to be formed with the vehicle.

[0031] Advantageously, the first plurality of battery cells are interconnected in parallel in a plurality of parallel first series in the direction of the longest extension of the first substrate, and the second plurality of battery cells are interconnected in parallel in a plurality of parallel second series in the direction of the longest extension of the second substrate. For this purpose, for example, the first plurality of battery cells or the second plurality of battery cells are arranged such that the battery cells of a first parallel series or a second parallel series are arranged directly adjacent to each other in the direction of the longest extension of the first substrate or the second substrate, respectively, and all longitudinal directions of the battery cells are arranged in one and the same plane. In this case, the first parallel series or the second parallel series are arranged side by side in the shortest extension of the first substrate or the second substrate, which is arranged perpendicular to the longest extension of the first substrate or the longest extension of the second substrate. In this respect, the control unit is configured to monitor the first parallel series and the second parallel series.

[0032] It is particularly advantageous if the battery module comprises at least one first sensor element configured for detecting a state variable of one battery cell of the first plurality of battery cells and / or if the battery module comprises at least one second sensor element configured for detecting a state variable of one battery cell of the second plurality of battery cells, which state variable of said one battery cell may for example be a temperature, a voltage or an ageing state.

[0033] Here, the first and / or second sensor element can be electrically and mechanically connected to a first or second clamping joint which is connected to the first and / or second housing element, whereby the control unit of the battery module can also be mechanically fixed within the battery module.

[0034] Furthermore, the at least one first sensor element or the at least one second sensor element is coupled for control technology purposes to a control unit of the battery module.

[0035] According to a preferred embodiment of the present invention, a further control unit of the battery module is arranged in the receiving space. In this case, the control unit and the further control unit are coupled to each other for control technology. This allows a division of functions in the monitoring of the battery module, in other words a two-part configuration of the control unit to be provided. For example, the further control unit may be configured for detecting the voltage and temperature of the battery cells of the first plurality of battery cells and the second plurality of battery cells.

[0036] The arrangement of the further control unit of the battery module may in this case in particular be oriented towards the first housing element and / or the second housing element, the further control unit of the battery module in particular extending over substantially the entire length of the shortest extension of the first base body or the shortest extension of the second base body, so that all parallel first series and all parallel second series can be monitored.

[0037] In particular, the extension of the further control unit of the battery module along the longest extension of the first substrate or along the longest extension of the second substrate can be adapted accordingly to the monitoring requirements.

[0038] In other words, this means that the size of the separate control unit of the battery module can be selected depending on the desired functionality.

[0039] In particular, the control unit and the further control unit are arranged substantially perpendicular to each other.

[0040] A front-end chip (ASIC) may be arranged on the separate control unit. The measured values ​​detected may be transmitted to the microchip by signal lines. Current detection functions, such as shunt sensors, and disconnection paths, such as solid-state relays (SSRs), may be arranged on the control unit.

[0041] It is particularly expedient if the first sensor element is arranged in the further control unit and is connected to a cell connector that electrically connects two battery cells of the first plurality of battery cells.

[0042] It is particularly expedient if the second sensor element is arranged in a separate control unit and is connected to a cell connector that electrically connects two battery cells of the second plurality of battery cells.

[0043] That is, preferably, the first sensor element is coupled to a cell connector electrically connecting two battery cells of the first plurality of battery cells, and the second sensor element is coupled to a cell connector electrically connecting two battery cells of the second plurality of battery cells. The first sensor element and / or the second sensor element may be soldered as a spring-loaded contact pin on a substrate of a further control unit of the battery module, and preferably can be in direct mechanical and electrical contact with the cell connector, whereby, inter alia, the voltage of one of the first parallel series or one of the second parallel series can be detected.

[0044] For example, each of the cell connectors may also include at least one shaft arranged between the respective connection regions. Furthermore, the first sensor element or the second sensor element may be in mechanical and electrical contact with at least one shaft of the respective cell connector. In particular, the shaft of the cell connector may additionally be formed as a spring element that presses against the first sensor element or the second sensor element.

[0045] It should be noted here that the cylindrical side surfaces of each first receiving section of the first housing element and each second receiving section of the second housing element are advantageously arranged so that a temperature-regulating fluid can flow through them. This temperature-regulating fluid is preferably a temperature-regulating gas, for example air. In other words, this means that the outside of the receiving section, which is arranged opposite the interior space of the receiving section in which the respective battery cell is accommodated, is arranged directly adjacent to the surrounding environment. Overall, the first housing element and the second housing element have a relatively large surface area, which allows passive cooling of each battery cell. This is particularly advantageous as it ensures that the temperature of the battery cell arranged in the middle can also be regulated.

[0046] It should be noted here that it is advantageous that a further filler material can be arranged between the cylindrical side of one of the first receptacles of the first housing element and the cylindrical side of one of the second receptacles of the second housing element. This allows the battery cells to be thermoregulated exclusively via the circular bottom of the respective receptacle in the case of applications with relatively low thermal demands, for example due to a relatively large temperature gradient between the battery cells and the surrounding environment, due to low currents or due to the use of battery cells with low internal resistance. In other words, instead of, for example, additional thermoregulation via the respective cylindrical side, the thermoregulation could be via the circular bottom of the respective receptacle. For this purpose, the gap between the cylindrical side of the respective receptacle can be filled with a further filler material. This allows the possibility of a mechanically very robust implementation of the module, of simple manufacture and of further reducing the distance between the two receptacles.

[0047] It is expedient if the first and second housing elements are made of a polymer material. For example, the polymer material may be selected as polyamide (PA), for example PA66. This makes it possible to minimize the weight of the battery module and at the same time provide sufficient mechanical strength. Furthermore, the first and second housing elements may contain glass fibers, which may for example be embedded in the polymer material. It is preferred that the first and second housing elements, in particular the first and second receiving parts, have a wall thickness of less than 2 mm, in particular 1 mm. This allows the weight of the battery module to be reduced in the case of sufficient mechanical strength at the same time such that reliable temperature regulation of the cylindrical battery cells is also possible.

[0048] The first and second housing elements may be inexpensively formed by a variety of manufacturing techniques, such as, for example, deep drawing.

[0049] It is particularly advantageous if the first and second battery cells are arranged directly opposite each other. This means that the cylindrical battery cells each have a longitudinal direction, and the longitudinal direction of the first and second battery cells are arranged parallel to each other. Furthermore, the longitudinal direction of the first and second battery cells are also arranged parallel to each other. Among other things, in this case the first and second housing elements are also arranged directly opposite each other. A particular advantage of the invention is that this not only requires a small installation space, but also that the electrical connection of the individual battery cells can be formed by means of relatively short cell connectors.

[0050] The present invention also relates to the use of the aforementioned battery module according to the invention in a light electric vehicle (LEV), which can provide a thermally optimized and scalable overall concept of a battery module for a light electric vehicle (LEV).

[0051] In addition, the present invention also provides a method for manufacturing the aforementioned battery module with a plurality of cylindrical battery cells, in particular lithium-ion battery cells, in which a first base body of a first housing element including a plurality of cylindrical first receiving portions in which a first plurality of battery cells electrically interconnected in series and / or parallel are received and a second base body of a second housing element including a plurality of cylindrical second receiving portions in which a second plurality of battery cells electrically interconnected in series and / or parallel are joined to each other while forming a receiving space in which a cell connector for electrically connecting the first plurality of battery cells and the second plurality of battery cells in series and / or parallel is received. In this case, the first base body and / or the second base body further form a third receiving portion in which a control unit of the battery module is received in addition to the receiving space.

[0052] Exemplary embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description. [Brief description of the drawings]

[0053] [Figure 1] FIG. 2 is an exploded view of one embodiment of a battery module according to the present invention. [Diagram 2] FIG. 2 is an exploded view of a further embodiment of a battery module according to the present invention. [Diagram 3] FIG. 13 is a plan view of another control unit of the battery module. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0054] FIG. 1 shows an embodiment of a battery module 1 according to the invention in an exploded view.

[0055] The battery module 1 includes a plurality of cylindrically shaped battery cells 2, not visible in FIG. 1, configured in particular as lithium ion battery cells 20.

[0056] The battery module 1 comprises a first housing element 31 and a second housing element 32. The first housing element 31 and the second housing element 32 are made from a polymer material, for example polyamide.

[0057] The first housing element 31 in this case has a plurality of cylindrical first receiving parts 41, and the second housing element 32 in this case has a plurality of cylindrical second receiving parts 42. Each first receiving part 41 of the first housing element 31 in this case has a cylindrical side surface 91, all of which are arranged so that the temperature adjustment fluid can flow through them. Each second receiving part 42 of the second housing element 32 in this case has a cylindrical side surface 92, all of which are arranged so that the temperature adjustment fluid can flow through them. It should be noted here that the cylindrical side surface 91 of the first receiving part 41 and the cylindrical side surface 92 of the second receiving part 42 are preferably arranged completely, but at least partially, so that the temperature adjustment fluid can flow through them. In particular, the cylindrical side surfaces 91 or the cylindrical side surfaces 92 may come into contact with each other.

[0058] The first housing element 31 and / or the second housing element 32 further comprises a third receiving portion 43. The third receiving portion 43 is formed for receiving a control unit 10 of the battery module 1.

[0059] The first receiving portion 41 receives in this case a first plurality 21 of battery cells 2 which are electrically interconnected in series and / or parallel. The second receiving portion 42 receives in this case a second plurality 22 of battery cells 2 which are electrically interconnected in series and / or parallel.

[0060] In this regard, for example, the battery cells 2 may be connected in parallel with each other along their respective longer sides, whereas a series connection may be made along their shorter sides.

[0061] The third accommodating section 43 accommodates the control unit 10 of the battery module 1 .

[0062] The first housing element 31 further comprises a first base body 51 in which the first receiving portion 41 is arranged.

[0063] The second housing element 32 further includes a second base 52 in which a second receiving portion 52 is disposed.

[0064] In particular, the first substrate 5 1 and / or 2nd substrate 5 2 has a basic shape that is substantially rectangular parallelepiped.

[0065] The first base body 51 and the second base body 52 are joined to each other while forming a storage space 6 that cannot be recognized in FIG. 5 1 and 2nd substrate 5 2 are joined to each other by a folded joint 8. The folded joint 8 is a first base body 5 1 and 2nd substrate 5 1. The battery module 1 is arranged to surround the joint between the battery cells 2 and the battery module 1 from its surrounding environment. In the accommodation space 6, a cell connector 7 can be arranged, which in this case is also not visible in Fig. 1. The cell connector 7 electrically connects the battery cells 2 of the first plurality 21 or the battery cells 2 of the second plurality 22 to one another in series and / or in parallel.

[0066] In this case, moreover, a third receiving section 43 is integrated into the fold joint 8 .

[0067] In addition, a first plurality of battery cells 21 are mounted on a first substrate. 5 It can be seen from FIG. 1 that in the direction of one longest extension 161 the first series 171 are interconnected in parallel.

[0068] In addition, a second plurality 22 of battery cells 2 are mounted on a second substrate. 5 1 that the first and second parallel series 171 and 172 are interconnected in parallel in a plurality of parallel second series 172 in the direction of the longest extension 162 of the battery module 1. The control unit 10 of the battery module 1 is configured to monitor the first and / or second parallel series 171 and / or the second parallel series 172.

[0069] The battery cells 2 of the first plurality 21 and the battery cells 2 of the second plurality 22 are arranged directly opposite each other.

[0070] In this case, the battery module 1 is 5 1 and / or 2nd substrate 5 2. In particular, the battery module 1 has a first electrical terminal 141, e.g. a positive electrical terminal, and a second electrical terminal 142, e.g. a negative terminal.

[0071] The electronic terminal 13 may in particular be configured as a plug, which allows for contact of high current paths, for example to the vehicle or to charging equipment, and which may transfer control signals, for example to a control mechanism not shown.

[0072] The battery module 1 in this case comprises electrical terminals 14. The electrical terminals 14 are configured for discharging or charging the battery cells 2 of the battery module 1. In particular, the battery module 1 has a first electrical terminal 141 and a second electrical terminal 142. The first electrical terminal 141 may in this case in particular be a positive electrical terminal and the second electrical terminal 142 may in this case in particular be a negative electrical terminal.

[0073] The first electrical terminal 141 can be used to connect, for example, a first substrate 5 The second electrical terminal 142 allows electrical connection to be made with the first battery cell 2, e.g., to a second substrate. 5 2. Electrical connections can be made to the battery cells 2 of FIG.

[0074] The control mechanism 10 includes an electronic terminal 13 and a first substrate. 5 1. A connection between the battery cell 2 or the electronic terminal 13 and the second substrate 5 2. The disconnection path is thus created.

[0075] For this purpose, a plurality of semiconductors, some of which cannot be seen in the drawing, are preferably arranged on the control unit 10 .

[0076] On the control unit 10, for example, a front-end chip (ASIC) 17 is arranged. Furthermore, the further control unit 100 has terminals 18, which are designed for coupling the further control unit 100 to the control unit 100 for control technology purposes.

[0077] Furthermore, the third housing portion 43 has a connection terminal 180 formed therein.

[0078] In addition to this, the control unit 10 has a cover element 19, which serves to isolate the control unit 10 from the surrounding environment. Furthermore, the cover element also has at least one electronic terminal 13, which is configured for contacting the control unit 10 for control technology purposes. It should be noted here that the cover element 10 can also incorporate electrical terminals 141, 142.

[0079] Figure 2 shows a further embodiment according to the invention of a battery module 1 in an exploded view. In this case, in contrast to Figure 1, the receiving space 6 accommodates a further control unit 100 of the battery module 1. The control unit 10 and the further control unit 100 are coupled to each other for control technology purposes.

[0080] FIG. 3 shows a plan view of another control unit 10 of the battery module 1.

[0081] The battery module 1 includes a first sensor element 151 configured to detect a state variable of one battery cell 2 of the first plurality 21 of battery cells 2, and a second sensor element 152 configured to detect a state variable of one battery cell 2 of the second plurality 22 of battery cells 2, respectively.

[0082] The first sensor element 151 or the second sensor element 152 is coupled to the control unit 10 of the battery module 1 for control technology purposes. The first sensor element 151 is arranged on the further control unit 100 and is joined to a cell connector 7 for electrically joining two battery cells 2 of the first plurality 21. The second sensor element 152 is arranged on the further control unit 100 and is joined to a cell connector 7 for electrically joining two battery cells 2 of the second plurality 22. A front-end chip (ASIC) 17, for example, is arranged on the further control unit 100. Furthermore, the further control unit 100 has terminals 18, which are configured for coupling the further control unit 100 to the control unit 100 for control technology purposes.

Claims

1. A battery module, A plurality of cylindrical battery cells (2); a first housing element (31) including a plurality of cylindrical first receiving portions (41) in which a first plurality (21) of battery cells (2) electrically interconnected in series and / or parallel are received; a second housing element (32) including a plurality of cylindrical second receiving portions (42) in which a second plurality (22) of battery cells (2) electrically interconnected in series and / or parallel are received; at least one first sensor element (151) configured to detect a state variable of one battery cell (2) of the first plurality (21) of battery cells (2) and / or at least one second sensor element (152) configured to detect a state variable of one battery cell (2) of the second plurality (22) of battery cells (2); A control unit (10) configured as a battery management system; Another control unit (100) coupled to the control unit (10); Equipped with the first housing element (31) has a first base (51) in which the first receiving portion (41) is arranged, and the second housing element (32) has a second base (52) in which the second receiving portion (42) is arranged, The first base (51) and the second base (52) are arranged to form an accommodation space (6), and the accommodation space (6) accommodates a cell connector (7) for electrically connecting the first plurality (21) of battery cells (2) and the second plurality (22) of battery cells (2) in series and / or parallel; the first base body (51) and / or the second base body (52) further form a third accommodation portion (43) in which the control unit (10) is accommodated in addition to the accommodation space (6); The other control unit (100) is disposed in the storage space (6) of the battery module (1); A battery module, wherein the at least one first sensor element (151) and / or the at least one second sensor element (152) are arranged in the further control unit (100) and are coupled to the control unit (10) for control technology purposes.

2. 2. The battery module according to claim 1, wherein the first base body (51) and the second base body (52) are joined to each other by a form joint.

3. The battery module according to claim 1 or 2, characterized in that the battery module (1) comprises electrical terminals (14, 141, 142) integrated into the first substrate (51) and / or the second substrate (52).

4. The first plurality (21) of battery cells (2) are interconnected in parallel in a plurality of parallel first series (171) in the direction of the longest extension (161) of the first base (51), and the second plurality (22) of battery cells (2) are interconnected in parallel in a plurality of parallel second series (172) in the direction of the longest extension (162) of the second base (52); 4. The battery module according to claim 1, wherein the control unit (10) of the battery module (1) is configured to monitor the first parallel series (171) and / or the second parallel series (172).

5. The battery module according to any one of claims 1 to 4, wherein the plurality of cylindrical battery cells (2) are lithium-ion battery cells (20).

6. 6. The battery module according to claim 1, wherein the first sensor element (151) is coupled to a cell connector (7) that electrically connects two battery cells (2) of the first plurality (21) of battery cells (2) and / or the second sensor element (152) is coupled to a cell connector (7) that electrically connects two battery cells (2) of the second plurality (22) of battery cells (2).

7. 7. The battery module according to claim 1, wherein the first housing element (31) and the second housing element (32) are made of a polymer material.

8. An electronic terminal (13) configured as a plug; a first electrical terminal (141) and a second electrical terminal (142) formed for discharging or charging the first plurality (21) of battery cells (2) and the second plurality (22) of battery cells (2); Further equipped with 8. The battery module according to claim 1, wherein the control unit (10) is capable of disconnecting a connection between the first electrical terminal (141) or the second electrical terminal (142) and the electronic terminal (13).

9. A method for manufacturing a battery module (1) according to any one of claims 1 to 8, comprising a plurality of cylindrical battery cells (2), comprising: a first base (51) of a first housing element (31) including a plurality of cylindrical first storage portions (41) in which a first plurality (21) of battery cells (2) electrically interconnected in series and / or parallel are stored, and a second base (52) of a second housing element (32) including a plurality of cylindrical second storage portions (42) in which a second plurality (22) of battery cells (2) electrically interconnected in series and / or parallel are stored are coupled to each other while forming an accommodation space (6) in which a separate control unit (100) of the battery module (1) is stored; The method of the present invention, wherein the first body (51) and / or the second body (52) further form, in addition to the accommodating space (6), a third accommodating portion (43) in which a control unit (10) of the battery module (1) is accommodated.

10. Use of a battery module (1) according to any one of claims 1 to 8 in a light electric vehicle.

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