Battery module, battery devices and methods for producing a battery module
The invention relates to battery modules, battery devices and to methods for producing a battery module.
1 . A battery module comprising: a plurality of galvanic cells, the galvanic cells being prismatic cells which are arranged along a stacking direction; two or more connecting bodies which connect the prismatic cells to one another in the stacking direction, one of the connecting bodies being arranged on a first short secondary side of the prismatic cells of the battery module, another one of the connecting bodies being arranged on a second short secondary side of the prismatic cells of the battery module, wherein at least the one of the connecting bodies comprises a connecting material body made of a connecting material and a receiving body, wherein the connecting material body is received in the receiving body of the connecting body, wherein the connecting material body is directly connected to the prismatic cells of the battery module in a materially bonding manner and directly connected to the receiving body in a materially bonding manner.
2 . The battery module according to claim 1 , wherein the connecting material body is a one-piece connecting material body and/or the receiving body is a one-piece receiving body.
3 . A battery module comprising: a plurality of galvanic cells, the galvanic cells being prismatic cells which are arranged along a stacking direction: two or more connecting bodies which connect the prismatic cells to one another in the stacking direction, one of the connecting bodies being arranged on a first short secondary side of the prismatic cells of the battery module, another one of the connecting bodies being arranged on a second short secondary side of the prismatic cells of the battery module, wherein at least the one of the connecting bodies comprises a connecting material body made of a connecting material and receiving body, wherein the connecting material body is received in the receiving body of the connecting body, wherein the connecting material body is connected to the prismatic cells of the battery module and to the receiving body in a materially bonding manner, wherein cell housings of the prismatic cells, the connecting material of the connecting material body, and the receiving body together form a materially bonded composite component.
4 . A battery module comprising: a plurality of galvanic cells, the galvanic cells being prismatic cells which are arranged along a stacking direction; two or more connecting bodies which connect the prismatic cells to one another in the stacking direction, one of the connecting bodies being arranged on a first short secondary side of the prismatic cells of the battery module, another one of the connecting bodies being arranged on a second short secondary side of the prismatic cells of the battery module, wherein at least the one of the connecting bodies comprises a connecting material body made of a connecting material and a receiving body, wherein the connecting material body is received in the receiving body of the connecting body, wherein the connecting material body is connected to the prismatic cells of the battery module and to the receiving body in a materially bonding manner, wherein the connecting material comprises at least one of the following: a plastic material, a thermosetting plastic material, a resin material, a polyurethane material, a polyurethane resin, a two-component material, a two-component casting resin, a two-component casting resin based on polyurethane, polyethers and/or polyester polyols, an epoxy material, an epoxy resin, a casting resin, a polyurethane casting resin, an epoxy casting resin.
5 . The battery module according to claim 1 , wherein at least the one of the connecting bodies comprises a temperature control channel structure through which a temperature control medium can be conducted.
6 . The battery module according to claim 1 , wherein a) the prismatic cells are arranged spaced apart from one another in the stacking direction, wherein the galvanic prismatic cells are arranged substantially in parallel to one another; and b) an intermediate space is arranged between at least two adjacent prismatic cells of the prismatic cells.
7 . A battery module according to claim 1 , wherein the receiving body has a plurality of spacer elements which have, parallel to the stacking direction of the battery module, a width of approximately 1 to 5 mm.
8 . The battery module according to claim 1 , wherein the connecting material body is connected to the prismatic cells of the battery module in a materially bonding and/or form-fitting manner.
9 . The battery module according to claim 1 , wherein the prismatic cells of the battery module connect at least two of the two or more connecting bodies of the battery module to one another in a load-bearing manner.
10 . The battery module according to claim 1 , wherein the one of the connecting bodies completely surrounds the one of the short secondary sides of the prismatic cells and/or wherein the one of the connecting bodies partially surrounds both long secondary sides of the prismatic cells.
11 . The battery module according to claim 1 , wherein the receiving body has a C-shaped cross-section.
12 . The battery module according to claim 1 , wherein the battery module comprises one or more connecting elements for a detachable and/or tool-free fixing of a cover element to the battery module.
13 . The battery module according to claim 12 , wherein one or more connecting elements for the detachable and/or tool-free fixing of the cover element to the battery module are designed as hook-and-loop fastener elements or as hook-and-loop fastener strips.
14 . The battery module according to claim 12 , wherein one or more connecting elements for the detachable and/or tool-free fixing of the cover element to the battery module are designed as magnetic elements or as magnetic strips.
15 . The battery module according to claim 12 , wherein the one or more connecting elements for the detachable and/or tool-free fixing of the cover element to the battery module is arranged on an upper side of the connecting body or of the receiving body, facing the cell poles of the prismatic cells of the battery module.
16 . The battery module according to claim 1 , wherein a width of the connecting material body in a direction perpendicular to the stacking direction of the battery module and parallel to a long secondary side of the galvanic cells corresponds to a total of a wall thickness of a cell housing wall of a cell housing of a prismatic cell, a distance of a cell winding of the prismatic cell from the cell housing wall of the cell housing, and a width of a deflection region of a cell winding of the prismatic cell.
17 . The battery module according to claim 1 , wherein two prismatic cells adjacent in the stacking direction and/or two connecting bodies of the battery module each bound a ventilation duct in a direction perpendicular to the stacking direction of the battery module and/or parallel to a short secondary side of the prismatic cells.
18 . The battery module according to claim 1 , wherein the battery module comprises a fan device which is arranged and designed in such a way that an air flow directed into ventilation ducts of the battery module can be generated by means of the fan device.
19 . The battery module according to claim 1 , wherein at least the one of the connecting bodies or the receiving body comprises one or more fastening elements, by means of which the battery module can be fixed to a housing of a battery device and wherein one or more of the one or more fastening elements is designed for the passage of a connecting element.
20 . The battery module according to claim 1 , wherein two connecting bodies of the battery module are connected or can be connected to one another in a force-fitting and/or form-fitting manner.
21 . The battery module according to claim 1 , wherein a respective receiving body of a connecting body comprises a fastening device for fastening a cell contacting system of the battery module.
22 . The battery module according to claim 1 , wherein the battery module comprises a plurality of cell connection elements which are designed to be substantially flat and/or planar.
23 . The battery module according to claim 1 , wherein the battery module comprises one or more cell connection elements, by means of which cell poles of two galvanic cells of the battery module are connected or connectable to one another, wherein at least one of the one or more cell connection elements comprises a heat conduction section, by means of which heat can be dissipated from the at least one cell connection element.
24 . The battery module according to claim 23 , wherein the heat conduction section is thermally coupled in a thermally conductive manner to the connecting material body.
25 . The battery module according to claim 1 , wherein at least the one of the connecting bodies of the battery module comprises one or more connecting sections, by means of which the connecting body is connectable to a connecting body of an adjacent battery module.
26 . The battery module according to claim 1 , wherein an electrical insulation film is arranged at least partially or only partially on a surface of the prismatic cells.
27 . Battery device comprising:
one or more battery modules according to claim 1 .
28 . Battery device according to claim 27 , wherein the battery device comprises a housing which comprises a cover element, wherein the cover element is fixed or can be fixed to the housing indirectly via one or more battery modules, in particular by means of one or more connecting elements for the detachable and/or tool-free fixing of the cover element to the one or more battery modules.
29 . Battery device according to claim 27 , wherein the battery device comprises a temperature control device which comprises one or more temperature control elements, wherein one or more temperature control elements of the temperature control device are preferably arranged between two adjacent battery modules of the battery device and/or wherein one or more temperature control elements are preferably arranged on a side of a respective battery module facing away from the cell poles of the prismatic cells of the one or more battery modules.
30 . Battery device according to claim 27 , wherein the battery device comprises a plurality of undercut elements, wherein battery modules adjacent in a stacking direction are each connected or can be connected to one another by means of one or more undercut elements.
31 . Battery device according to claim 30 , wherein the battery device comprises a housing, wherein battery modules of the battery device are connected or can be connected to the housing by means of one or more undercut elements.
32 . Method for producing a battery module, in particular a battery module according to claim 1 , wherein the method comprises:
providing a plurality of galvanic cells;
providing a first casting mold, in particular a first receiving body, which comprises a receptacle;
arranging the galvanic cells along a stacking direction in the receptacle of the first casting mold, in particular of the first receiving body;
introducing a connecting material, which is in particular flowable and/or castable, into the receptacle of the first casting mold, in particular of the first receiving body.
33 . Method according to claim 32 , wherein the connecting material cures and/or cross-links after introduction thereof into the receptacle of the first casting mold, in particular of the first receiving body.
34 . Method according to claim 32 , wherein the galvanic cells are arranged in the receptacle of the first casting mold and/or of the first receiving body substantially in parallel to one another and/or spaced apart from one another.
35 . Method according to claim 32 , wherein the galvanic cells are cast on a first side of the galvanic cells when the connecting material is introduced into the receptacle of the first casting mold, in particular of the first receiving body.
36 . Method according to claim 35 , wherein the galvanic cells, after curing and/or cross-linking of the connecting material in the receptacle of the first casting mold, in particular of the first receiving body, are arranged in a receptacle of a second casting mold, in particular of a second receiving body, and a connecting material, which is in particular flowable and/or castable, is subsequently introduced into the receptacle of the second casting mold, in particular of the second receiving body.
37 . Method according to claim 36 , wherein the connecting material cures and/or cross-links after the introduction thereof into the receptacle of the second casting mold, in particular of the second receiving body.
38 . Method according to claim 37 , wherein the galvanic cells are cast on a second side of the galvanic cells when the connecting material is introduced into the receptacle of the second casting mold, in particular of the second receiving body.
39 . Method according to claim 32 , wherein the galvanic cells are fixed on a second side while the connecting material is introduced into the receptacle of the first casting mold, in particular of the first receiving body.
40 . Method according to claim 32 , wherein for casting the galvanic cells on a first side and/or on a second side of the galvanic cells, the connecting material is first introduced, in particular cast, into a receptacle of a casting mold, in particular of a receiving body, wherein the galvanic cells are subsequently introduced preferably into the still flowable and/or castable connecting material, in particular pressed into the still flowable and/or castable connecting material.
41 . Method according to claim 36 , wherein the galvanic cells are heated before introducing the connecting material into a receptacle of the first casting mold, in particular of the first receiving body, and/or before introducing the connecting material into a receptacle of a second casting mold, in particular of a second receiving body.
42 . Method according to claim 35 , wherein the connecting material is heated, in particular by supplying heat, before the introduction and/or after the introduction thereof into a receptacle of the first casting mold, in particular of the first receiving body, and/or before the introduction and/or after the introduction thereof into a receptacle of the second casting mold, in particular of a second receiving body.