CN110993874A - Battery system and method for electrically connecting battery modules of battery system - Google Patents

Battery system and method for electrically connecting battery modules of battery system Download PDF

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Publication number
CN110993874A
CN110993874A CN201910938689.5A CN201910938689A CN110993874A CN 110993874 A CN110993874 A CN 110993874A CN 201910938689 A CN201910938689 A CN 201910938689A CN 110993874 A CN110993874 A CN 110993874A
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CN
China
Prior art keywords
battery
battery modules
contact element
conductor track
battery module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910938689.5A
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Chinese (zh)
Inventor
L.拉肯曼彻
A.拉姆科
B.沙尔
F.韦舍
M.克林克
B.格罗杰
H.沃尔克马
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Volkswagen AG
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Volkswagen AG
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Filing date
Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of CN110993874A publication Critical patent/CN110993874A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention relates to a battery system (1) having a first system base (2) for accommodating a plurality of battery modules (3) and a plurality of battery modules (3), wherein the battery modules (3) are arranged on the first system base (2), wherein the battery modules (3) each have a first contact element (4) and are electrically connected to a first conductor track (5) of the first system base (2) via the first contact elements (4). The invention further relates to a method for electrically connecting battery modules (2) of a battery system (1).

Description

Battery system and method for electrically connecting battery modules of battery system
Technical Field
The invention relates to a battery system having a first system base for accommodating a plurality of battery modules and a plurality of battery modules. The invention also relates to a method for electrically connecting (or called connecting wires, connecting wires) battery modules of a battery system.
Background
A battery system generally comprises a plurality of battery modules which are connected to one another, for example in series or in parallel or a combination of series and parallel. For connecting the battery modules, electrical connection elements are generally used, which electrically connect the battery modules.
An alternative possibility for the connection of battery modules is known from DE 102014204245 a 1. For connection, the battery modules are combined into a stack. Here, the electrodes of the adjacent battery modules are in contact with each other. The stack assembly of battery modules is fixed by the frame member. Document DE 102014217119 a1 discloses a battery system in which individual battery modules are arranged in receptacles of a frame device. The individual battery modules are connected to one another by means of special module connectors which are arranged individually in the frame device.
The known battery systems and methods for electrically connecting battery modules of a battery system have the disadvantage that the connection of the battery modules can only be carried out with relatively high assembly effort and usually with manual work. This results in a relatively long assembly time and thus a relatively high assembly outlay.
Disclosure of Invention
The object of the present invention is therefore to overcome or at least partially overcome the above-mentioned disadvantages in a battery system having a plurality of interconnected battery modules and in a method for the electrical connection of battery modules of a battery system. The object of the present invention is, inter alia, to provide a battery system and a method for the electrical connection of battery modules of a battery system, which can avoid complicated connecting processes, in particular manual work, in a simple and cost-effective manner and method, and thus ensure a relatively quick and reliable connection of the battery modules.
The above technical problem is solved by the claims. The object is achieved by a battery system with the features of independent claim 1 and by a method for the electrical connection of battery modules of a battery system with a first system infrastructure for accommodating a plurality of battery modules and with a plurality of battery modules with the features of the parallel claim 9. Further features and details of the invention are given in the dependent claims, the description and the drawings. The technical features and details described here in connection with the battery system according to the invention are obviously also applicable in the case of the method according to the invention and vice versa, so that the various inventive aspects are always mutually cited for the purpose of disclosure.
According to a first aspect of the present invention, the technical problem is solved by a battery system. The battery system has a first system base for accommodating a plurality of battery modules. The battery system also has a plurality of battery modules, wherein the battery modules are arranged on the first system base device. According to the invention, the battery modules each have a first contact element and are electrically connected to a first conductor track (or first conductor rail or first conductor circuit) of the first system base via said first contact element.
The first system infrastructure is configured to receive a battery module. Preferably, the first system infrastructure is designed to hold the battery modules in a defined relative position to one another. It is therefore preferable that the first system base has a certain degree of rigidity so that the system base does not deflect by the weight of the battery module. More preferably, the first system infrastructure has an electrical insulator and is configured to avoid short-circuiting of the battery modules. Furthermore, the first system infrastructure preferably has an orientation marking and/or an orientation element for orienting the battery module when it is arranged in the first system infrastructure. The orientation element can be configured, for example, as a recess corresponding to the outer dimensions of the battery module or as a stop element for placing the battery module. In addition, the first system infrastructure is preferably also designed such that the battery modules arranged on the first system infrastructure have a distance from one another. In this way, direct current conduction between the battery module and the adjacent battery module is avoided.
The battery module is preferably cuboidal in configuration and has a first contact element. The first contact element is preferably designed as an electrode of the battery module. Preferably, the battery module furthermore has a second contact element, wherein the second contact element is preferably designed as an opposite pole of the battery module to the first contact element. The first contact element is configured, for example, as an anode and the second contact element is configured as a cathode, or vice versa. The first contact element and the second contact element are configured for connection of a battery module.
The first system infrastructure is designed to accommodate a plurality of battery modules and has a first conductor track for the electrical connection of the battery modules. The first conductor line is made of a conductive material, preferably a conductive material having relatively high conductivity, particularly copper, silver, or the like. The region of the first system infrastructure adjacent to the first conductor track is preferably designed as an electrical insulator. According to the invention, the first conductor track can be designed continuously or in sections. In the segmented configuration, the first conductor line has recesses, so that the individual segments of the first conductor line are electrically isolated from one another. With a first system infrastructure of this type, for example, a series connection and/or a parallel connection of the battery modules can be realized.
In the case of a series connection, the first conductor track is preferably designed in sections. The first contact element of the first battery module contacts a section of the first conductor track and is thereby electrically connected to this section. The second contact element of a second battery module, in particular a second battery module adjacent to the first battery module, contacts the same section of the first conductor track and is thereby likewise electrically connected to this section. In this way, the first battery module and the second battery module can be connected in series.
In the parallel connection, the first conductor lines are preferably formed continuously. The first contact element of the first battery module contacts the first conductor track and is thereby electrically connected thereto. The first contact element of a second battery module, in particular a second battery module adjacent to the first battery module, contacts the first conductor track and is thereby likewise electrically connected to the first conductor track. Furthermore, the second contact element of the first battery module contacts the second conductor track and is thereby electrically connected to the second conductor track. The second conductor line is formed, for example, as part of the first system infrastructure. Furthermore, the second conductor track is electrically decoupled (or electrically separated) from the first conductor track, in particular by means of an insulator arranged between the first conductor track and the second conductor track. The second contact element of the second battery module contacts the second conductor track and is thereby likewise electrically connected to the second conductor track. In this way, the first battery module and the second battery module can be connected in parallel.
The battery system according to the invention has the advantage over conventional battery systems that the electrical connection or coupling of the battery modules, for example in series and/or in parallel, is achieved by simple means and in a cost-effective manner and method. The assembly costs of the battery system are thereby significantly reduced. In this way, the production costs are significantly lower than in conventional battery systems.
In a preferred refinement of the invention, provision may be made in the battery system for the first contact element to be designed as a plug contact for insertion into a first contact receptacle of the first system base. The first plug contact is preferably of pin-like, in particular cylindrical, conical and/or undercut (or side-concave) design. The first plug contact and the first contact receptacle are preferably designed to form a complete snap-fit connection (or snap-fit connection), wherein the snap-fit connection is designed such that the first plug contact is fixed in the first contact receptacle in a manner that the first plug contact is prevented from falling off, in particular by means of a spring element or a spring section. This has the advantage that the assembly and the connection of the battery modules are further improved, since the assembly and the connection can already be carried out in only one common assembly direction of the battery modules.
According to the invention, the first conductor line is preferably designed to electrically connect at least some of the battery modules in series, wherein the first conductor line is electrically connected to the first contact element of a first of the battery modules and to the second contact element of a second of the battery modules. As described above, the first conductor lines are segmented in the series connection. The first contact element of the first battery module contacts a section of the first conductor track and is thereby electrically connected to this section. The second contact element of a second battery module, which is arranged in particular adjacent to the first battery module, contacts the same section of the first conductor track and is thus likewise electrically connected to this section. "at least one part of the battery modules" is also to be understood according to the invention to mean that all battery modules can be connected in series in the same manner. It can also be provided that only a part of the battery modules are connected in series. In this case, the battery modules are preferably combined into a plurality of groups, wherein the battery modules in a group are connected in series. The groups may then be connected in parallel, for example. Such a series connection can be realized by simple means and in a cost-effective manner. Thereby reducing the assembly cost and the manufacturing cost of the battery system.
More preferably, the battery system has a second conductor track, wherein the first conductor track and the second conductor track are designed to be electrically connected in parallel with at least a part of the battery modules. As described above, the first conductor lines are formed continuously in parallel. The first contact element of the first battery module contacts the first conductor track and is thereby electrically connected thereto. The first contact element of a second battery module, which is arranged in particular adjacent to the first battery module, contacts the first conductor track and is thus likewise electrically connected thereto. Furthermore, the second contact element of the first battery module contacts the second conductor track and is thereby electrically connected to the second conductor track. The second conductor line is formed, for example, as part of the first system infrastructure. The second conductor track is electrically decoupled from the first conductor track, in particular by means of an insulator arranged between the first conductor track and the second conductor track. The second contact element of the second battery module contacts the second conductor track and is thereby likewise electrically connected to the second conductor track. "at least one part of a battery module" is also to be understood according to the invention in the sense that it is possible in particular for all battery modules to be connected in parallel in the same manner. It can also be provided that only a part of the battery modules are connected in parallel. In this case, it is preferred that the battery modules are combined into a plurality of groups, wherein the battery modules in a group are connected in parallel. The groups may then be connected in series, for example. This parallel connection can be realized by simple means and in a cost-effective manner. Thereby reducing the assembly cost and the manufacturing cost of the battery system.
In particular, it is preferred that the second conductor track is arranged on a second system infrastructure, wherein the battery module is arranged between the first system infrastructure and the second system infrastructure. Preferably, the second system infrastructure is constructed similarly to the first system infrastructure. Particularly preferably, the second system infrastructure is constructed identically to the first system infrastructure. This has the advantage that standard parts can be used for assembly and thus the number of different components is reduced. The electrical connection of the battery module to the second conductor track is preferably configured in accordance with the electrical connection of the battery module to the first conductor track. It is also preferable that the battery module be fixed to the second system infrastructure in accordance with the fixing structure of the battery module to the first system infrastructure. The battery module is arranged between the first system base unit and the second system base unit in a sandwich arrangement, wherein the first conductor track and the second conductor track face the battery module. According to the invention, it can also be provided that the second system infrastructure also has the first conductor track on the side facing away from the second conductor track, so that a further layer of battery modules can be arranged on the second system infrastructure. According to the invention, the first conductor line and the second conductor line of the second system infrastructure can be electrically connected to each other or can be electrically isolated from each other. This type of arrangement has the advantage that the connection of the battery modules is achieved by simple means and in a cost-effective manner. Thereby reducing the preparation time and equipment costs of the battery system. The sandwich arrangement furthermore has the advantage that the battery module is protected from external factors, in particular mechanical influences, from at least two sides by the first system base unit and the second system base unit. Thereby improving the durability of the battery system.
In a particularly preferred embodiment, the first system base has a locking element (or latch element) and the second system base has a corresponding locking element (or mating locking element), and/or the first system base has a corresponding locking element and the second system base has a locking element, wherein the locking element and the corresponding locking element are designed to be locked to one another, so that the first system base, the battery module and the second system base are fixed to one another. The locking element and the counter-locking element preferably have an undercut structure and/or a spring means. The spring device is preferably designed to engage in an undercut for producing the locking connection. Alternatively, it can also be provided that the locking element and the counter-locking element are designed to form a common press-fit connection (or press-fit connection). This has the advantage that the battery module can be arranged and fixed on the first system infrastructure by simple means and in a cost-effective manner and method. As an alternative, the locking elements and the counter-locking elements can also be arranged on the first system base unit and the second system base unit in order to connect them to one another in a sandwich-type arrangement and thus to fix the battery module inserted therein in its connection position.
The first system infrastructure is preferably of plate-like design. A plate-like structure is understood to mean a three-dimensional solid body in which the thickness is designed to be significantly smaller than the length and width of the solid body. More preferably, the second system infrastructure is configured plate-like. Preferably, the first system infrastructure and/or the second system infrastructure are constructed at least approximately in proportion to the conductor plate. The first system infrastructure and/or the second system infrastructure preferably have a rectangular or at least substantially rectangular base surface. A system base of this type and a second system base have the advantage that they are particularly suitable for the assembly of battery modules.
According to a preferred embodiment of the invention, the first system infrastructure has cooling channels for conducting a cooling fluid and/or heat removal devices (or heat sinks) for removing heat. The cooling channel is preferably formed within the first system infrastructure, in particular in a perforated manner. Alternatively, the cooling channel may be arranged on the side of the first system base facing away from the battery modules or extend between the battery modules. The heat conduction device is preferably made of a material having high thermal conductivity, particularly silver, copper, or the like. According to the invention, it can be provided that the first conductor track and/or the second conductor track is designed as a heat-conducting device. In this case, the first conductor track and/or the second conductor track have an increased cross section which is favorable for the heat output. The thickness is in particular designed to be greater than in conventional conductor tracks. The thickness of the first conductor track and/or the thickness of the second conductor track is in this case preferably greater than 1/10mm, and more preferably less than 1 mm. The cooling channel or the heat conducting device can cool the system infrastructure and thus the battery module. This has the advantage that overheating of the battery system can be avoided by heat dissipation in a simple manner and in a cost-effective manner. Thereby improving the safety and durability of the battery system.
The technical problem is solved according to a second aspect of the present invention by an electrical connection method for battery modules of a battery system according to the present invention. The method has the following steps:
providing a first system infrastructure for accommodating a plurality of battery modules, wherein the first system infrastructure has a first conductor path,
-providing battery modules, which each have a first contact element, and
arranging the battery module on the first system infrastructure such that the first contact element is electrically connected with the first conductor line.
First, a first system infrastructure is provided. The first system infrastructure is designed to accommodate a plurality of battery modules and has a first conductor track for the electrical connection of the battery modules. The first conductor line is made of a conductive material, preferably a conductive material having relatively high conductivity, particularly copper, silver, or the like. The region of the first system infrastructure adjacent to the first conductor track is preferably designed as an electrical insulator. According to the invention, the first conductor track can be designed continuously or in sections. In the segmented configuration, the first conductor line has recesses, so that the individual segments of the first conductor line are electrically isolated from one another. With a first system infrastructure of this type, for example, a series connection and/or a parallel connection of the battery modules can be realized.
The battery module is then provided. The battery modules each have a first contact element and a second contact element. The battery module is preferably cuboidal in configuration. The first contact element and the second contact element are preferably each designed as an electrode of the battery module, the second contact element preferably being designed as an electrode of the battery module opposite the first contact element. The first contact element is configured, for example, as an anode and the second contact element is configured as a cathode, or vice versa. The first contact element and the second contact element are configured for electrical connection of the battery module.
Finally, the battery modules are arranged simultaneously or one after the other on the first system base, so that the first contact element of the first battery module is electrically connected to the first conductor track of the first system base. This is achieved in particular in that the first contact element is pressed against the surface of the first conductor track. Preferably, the first contact element is inserted into a recess of the first conductor line, wherein the first contact element comes into contact with a surface of the recess. Alternatively, the first contact element has a recess into which the plug element of the first conductor line can be inserted.
Preferably, for the electrical connection of the battery module, the second contact element of the battery module is in contact, in particular in a sandwich-type arrangement, with the second conductor line of the first system infrastructure or of the second system infrastructure, wherein the battery module is arranged between the first system infrastructure and the second system infrastructure. Finally, it can be provided that the battery module is provided with a potting compound and the battery system is thereby fixed and sealed from the environment.
All the advantages already described in the battery system according to the first aspect of the invention are obtained in the method for the electrical connection of battery modules of a battery system. The method according to the invention thus has the advantage over conventional methods that the electrical connection or coupling of the battery modules, for example in series and/or in parallel, is achieved by simple means and in a cost-effective manner and method. The assembly costs for carrying out the method are thereby significantly reduced. In this way, the production costs are considerably lower than in conventional methods.
Preferably, the battery system is fixed to the first contact receptacle of the first system base by means of a plug contact. Preferably, the first contact element is designed as a plug contact for this purpose. The plug contact is preferably inserted, in particular locked, into the first contact receptacle. This has the advantage that no additional fixing means have to be used. This simplifies assembly, by means of which assembly time and assembly costs can be reduced.
Drawings
The battery system according to the invention and the method according to the invention are explained in detail below with the aid of the figures. Shown schematically in the drawings:
figure 1 shows a partial top view of a preferred first embodiment of a battery system according to the invention,
figure 2 shows a perspective cross-sectional view of a preferred second embodiment of a battery system according to the present invention,
figure 3 shows a perspective view of a preferred third embodiment of a battery system according to the present invention,
figure 4 shows a perspective view of a preferred fourth embodiment of a battery system according to the present invention,
fig. 5 shows a partial perspective cross-sectional view of a fifth embodiment of a preferred battery system according to the present invention, an
Fig. 6 shows a flow chart of a preferred embodiment of the method according to the invention.
Elements having the same function and mode of action are denoted by the same reference numerals in figures 1 to 6 respectively.
Detailed Description
Fig. 1 schematically shows a partial plan view of a first preferred embodiment of a battery system 1 according to the invention. The battery system 1 has a first system base 2, on which a first conductor track 5 is formed. The first conductor track 5 is divided into a plurality of electrically isolated sections. A plurality of battery modules 3, which are only symbolically illustrated by rectangles outlined by dashed lines for the sake of simplicity, are arranged on the first system base 2. Ten battery modules 3 are shown in this embodiment. The battery modules 3 each have a first contact element 4 and a second contact element 7. The first contact element 4 of the first battery module 3a is electrically connected to a section of the first conductor track 5. The second contact element 7 of the second battery module 3b adjacent to the first battery module 3a is electrically connected to the same section of the first conductor track 5. In this way, the battery modules 3 are connected in series.
Fig. 2 schematically shows a perspective sectional view of a preferred second embodiment of a battery system 1 according to the invention. The first conductor track 5 arranged on the first system base 2 has a first contact receptacle 6 for receiving the first contact element 4 of the battery module 3, which is designed as a plug contact. Furthermore, the battery system 1 has a top cover 13 and a bottom 14, which are connected to one another by connecting pins 15, which are in particular embodied as screws. A certain connecting pin 15 is constructed as a first pole 16 of the battery system 1. A certain connecting pin 15 is constructed as a second pole 17 of the battery system 1.
Fig. 3 schematically shows a perspective view of a third preferred embodiment of a battery system 1 according to the invention. In this embodiment, the battery system 1 has a second system infrastructure 9 with a second conductor track 8, which is not shown in the drawing. The first conductor track 5 of the first system infrastructure 2 is likewise masked. The first system base 2 has a locking element 10, not shown, and the second system base 9 has a corresponding locking element 11, not shown, wherein the locking element 10 and the corresponding locking element 11 are designed to be locked to one another. The top cover 13 is connected to the bottom by connecting pins 15, wherein one connecting pin is designed as a first electrode 16 and the other connecting pin 15 is designed as a second electrode 17. The first electrode 16 and the second electrode 17 have enlarged connection faces for improving the connection of the battery system 1.
Fig. 4 schematically shows a perspective view of a fourth preferred embodiment of a battery system 1 according to the invention. The fourth embodiment differs from the third embodiment in that the first electrode 16 and the second electrode 17 of the battery system 1 are each designed as a plug element 18. The plug element 18 is inserted into the passage opening of the cover 13 and is held therein, in particular frictionally engaged. The connecting pins 15 do not make electrical contact with the battery module 3.
Fig. 5 schematically shows a perspective cross-sectional view of a fifth preferred embodiment of a battery system 1 according to the invention. In the fifth embodiment, a cooling channel 12 for cooling the system base 2 and the battery module 3 is configured in the first system base 2.
A flow chart of a preferred embodiment of the method according to the invention is schematically shown in fig. 6. In a first method step 100, a first system infrastructure 2 for accommodating a plurality of battery modules 3 is provided. The first system infrastructure 2 has a first conductor path 5. The first conductor track 5 can be designed continuously or in sections, the sections preferably being electrically decoupled from one another. According to the invention, the first system infrastructure 2 can have a second conductor track 8. In a second method step 200, battery modules 3 are provided, which each have a first contact element 4 and a second contact element 7. The first contact element 4 is designed as a first electrode 16, for example as an anode, and the second contact element 7 is designed as a second electrode 17, for example as a cathode. In a third method step 300, the battery module 3 is arranged on the first system base 2, so that the first contact element 4 is electrically connected to the first conductor track 5. In the segmented first conductor track 5, it is preferred that the battery modules 3 are arranged such that the second contact elements 7 are each electrically connected to a section of the first conductor track 5, wherein the sections of the first conductor track 5 are each electrically connected to the first contact elements 4 of the adjacent battery modules 3. Thereby achieving series connection of the battery modules 3. In the consecutive first conductor track 5, the second contact element 7 is preferably electrically connected to the second conductor track 8. Thereby achieving parallel connection of the battery modules 3. Said series and parallel connections may also be combined according to the invention.
List of reference numerals
1 Battery system
2 first System infrastructure
3 Battery module
3a first Battery Module
3b second Battery Module
4 first contact element
5 first conductor line
6 first contact accommodating part
7 second contact element
8 second conductor line
9 second System infrastructure
10 locking element
11 corresponding locking element
12 cooling channel
13 Top cover
14 bottom
15 connecting pin
16 first electrode
17 second electrode
18 plug element
100 first method step
200 second method step
300 third method step

Claims (10)

1. A battery system (1) having a first system base (2) for accommodating a plurality of battery modules (3) and a plurality of battery modules (3), wherein the battery modules (3) are arranged on the first system base (2),
it is characterized in that the preparation method is characterized in that,
the battery modules (3) each have a first contact element (4) and are electrically connected to a first conductor line (5) of the first system base (2) via the first contact elements (4).
2. The battery system (1) according to claim 1,
the first contact element (4) is designed as a plug contact for insertion into a contact receptacle (6) of the first system base (2).
3. Battery system (1) according to at least one of the preceding claims,
the first conductor line (5) is designed to be electrically connected in series with at least a part of the battery modules (3), wherein the first conductor line (5) is electrically connected to a first contact element (4) of a first battery module (3a) of the battery modules (3) and to a second contact element (7) of a second battery module (3b) of the battery modules (3).
4. Battery system (1) according to at least one of the preceding claims,
the battery system (1) has a second conductor track (8), wherein the first conductor track (5) and the second conductor track (8) are designed to electrically connect at least some of the battery modules (3) in parallel.
5. The battery system (1) according to claim 4,
the second conductor line (8) is arranged on a second system infrastructure (9), wherein the battery module (3) is arranged between the first system infrastructure (2) and the second system infrastructure (9).
6. The battery system (1) according to claim 5,
the first system base (2) has a locking element (10) and the second system base (9) has a corresponding locking element (11), and/or the first system base (2) has a corresponding locking element (11) and the second system base (9) has a locking element (10), wherein the locking element (10) and the corresponding locking element (11) are designed to be locked to one another, so that the first system base (2), the battery module (3) and the second system base (9) are fixed to one another.
7. Battery system (1) according to at least one of the preceding claims,
the first system base (2) is of plate-like design.
8. Battery system (1) according to at least one of the preceding claims,
the first system base (2) has a cooling channel (12) for conducting a cooling fluid and/or a heat removal device for removing heat.
9. Method for electrically connecting battery modules (3) of a battery system (1) according to at least one of the preceding claims, wherein the method is characterized by the following method steps:
providing a first system base (2) for accommodating a plurality of battery modules (3), wherein the first system base (2) has a first conductor track (5),
-providing battery modules (3) having a first contact element (4) and a second contact element (7), respectively, and
-arranging the battery module (3) on the first system base (2) such that the first contact element (4) is electrically connected with the first conductor line (5).
10. The method of claim 9,
the battery module (3) is fixed to a first contact receptacle (6) of the first system base (2) by means of plug contacts.
CN201910938689.5A 2018-10-02 2019-09-30 Battery system and method for electrically connecting battery modules of battery system Pending CN110993874A (en)

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DE102018124367.7 2018-10-02

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Citations (3)

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US6399238B1 (en) * 1999-12-13 2002-06-04 Alcatel Module configuration
CN103038916A (en) * 2010-07-29 2013-04-10 原子能及能源替代委员会 Battery, the design and assembly of which are simple
CN105024019A (en) * 2014-04-17 2015-11-04 罗伯特·博世有限公司 Battery unit comprising an accommodating device and a plurality of electrochemical cells and battery module comprising a plurality of such battery units

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AT512756B1 (en) * 2012-03-16 2017-07-15 Nordfels Gmbh Battery pack for electrical power supply with several round cells
DE202017105488U1 (en) * 2017-07-18 2018-10-24 Mahle International Gmbh Battery cell assembly

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US6399238B1 (en) * 1999-12-13 2002-06-04 Alcatel Module configuration
CN103038916A (en) * 2010-07-29 2013-04-10 原子能及能源替代委员会 Battery, the design and assembly of which are simple
CN105024019A (en) * 2014-04-17 2015-11-04 罗伯特·博世有限公司 Battery unit comprising an accommodating device and a plurality of electrochemical cells and battery module comprising a plurality of such battery units

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