DE102020114703A1 - Battery system for the modular arrangement of battery modules - Google Patents

Abstract

A battery system for modularly arranging battery modules (3A-3C), comprising: a plurality of battery modules (3A-3C), the plurality having at least a first battery module (3A) and a second battery module (3B) which are adapted to be arranged next to one another in a battery module arrangement, the first battery module (3A) and the second battery module (3B) each having a housing (5) with a first through contact (7A) and a second through contact (7B), the first through contact (7A) and the second Through contacts (7B) are each arranged on an upper side (9A) and on a lower side (9B) of the respective housing (5); and wherein- in a first configuration the first through contact (7A) of the first battery module (3A) is matched with the first through contact (7A) of the second battery module (3B) and the second through contact (7B) of the first battery module (3A) is matched with to be connectable to the second through contact (7B) of the second battery module (3B), and - in a second configuration, the first through contact (7A) of the first battery module (3A) can be connected to the second through contact (7B) of the second battery module (3B) and the second through contact (7B) of the first battery module (3A) can be isolated from the first through contact (7A) of the second battery module (3B). A battery module is also proposed.

Description

The invention relates to a battery system for the modular arrangement of battery modules and a battery module.

In many electrical or electronic devices, or in the periphery of these devices, electrochemical battery cells are used in battery modules. Such battery modules are used in a variety of battery systems for centralized and decentralized power supplies, for example in connection with photovoltaic systems, in means of transport, such as in cars, airplanes, boats, or in a variety of other portable electrical or electronic devices, such as in cell phones or in computers. The battery systems can also be designed as so-called battery packs or accumulator packs and can be used to supply power to the devices described above.

The battery systems are usually made up of several battery modules electrically connected in series and / or in parallel, which in turn are made up of several battery cells. When used as an energy store in connection with renewable energy sources, the operating voltage is usually in the low-voltage range between 12, 24 and 48 volts DC. To operate AC consumers, an inverter can convert the DC voltage into an AC voltage, for example 230 volts, 50 Hz. Even in electric vehicles, such as electric scooters, the operating voltage is usually in the low-voltage range.

For example, describes the WO 2018/059267 A1 a battery system that can be built up using several battery modules arranged one above the other. The power lines of a battery module are led out of this in order to be able to be electrically connected to the neighboring modules.

Furthermore describes the EP 3 288 353 A2 a battery system for the modular arrangement of battery modules in a battery module stack. In the EP 3 288 353 A2 the contacts of the individual battery modules are arranged on a housing top and a housing bottom and can be connected to one another via connection modules when the battery modules are arranged in the battery module stack.

Furthermore describe the WO 2010/124562 A1 , WO 2008/144994 A1 , U.S. 5,737,189 A , EP 2 612 386 B1 and US 2001/026306 A1 Arrangements of battery modules and their interconnection by means of connecting elements, such as bands, rails, bridges, cables, etc.

In the battery systems known from the prior art, the individual battery modules are often stacked on top of one another and are self-supporting, or the battery modules are placed in racks that were specially made for the battery modules and are also often referred to as racks. Since there have been no generally binding regulations or standards for the arrangement of battery modules so far, numerous designs have emerged in which battery modules are arranged and interconnected with more or less effort, as is described, for example, in the aforementioned prior art. However, the arrangement and interconnection of battery modules often requires a high level of assembly effort. Also, many add-on parts are often required for assembly, which stand in the way of inexpensive assembly. Furthermore, the interconnection options for the battery modules are limited in the battery systems known from the prior art.

The object of the present invention is to provide an improved battery system with battery modules that are easy to arrange and interconnect with one another.

This object is achieved by a battery system with the features of claim 1.

• eine Vielzahl von Batteriemodulen, wobei die Vielzahl zumindest ein erstes Batteriemodul und ein zweites Batteriemodul aufweist, die angepasst sind zum aneinander Anordnen in einer Batteriemodulanordnung, wobei das erste Batteriemodul und das zweite Batteriemodul jeweils ein Gehäuse aufweisen mit einem ersten Durchgangskontakt und
• einem zweiten Durchgangskontakt, wobei der erste Durchgangskontakt und der zweite Durchgangskontakt jeweils an einer Oberseite und an einer Unterseite der jeweiligen Gehäuse angeordnet sind; und wobei
  • - in einer ersten Konfiguration der erste Durchgangskontakt des ersten Batteriemoduls angepasst ist mit dem ersten Durchgangskontakt des zweiten Batteriemoduls und der zweite Durchgangskontakt des ersten Batteriemoduls angepasst ist mit dem zweiten Durchgangskontakt des zweiten Batteriemoduls verbindbar zu sein, und
  • - in einer zweiten Konfiguration der erste Durchgangskontakt des ersten Batteriemoduls angepasst ist mit dem zweiten Durchgangskontakt des zweiten Batteriemoduls verbindbar zu sein und der zweite Durchgangskontakt des ersten Batteriemoduls von dem ersten Durchgangskontakt des zweiten Batteriemoduls isolierbar zu sein.

Thereafter, a battery system for the modular arrangement of battery modules is provided, comprising:

• a plurality of battery modules, the plurality having at least a first battery module and a second battery module which are adapted to be arranged next to one another in a battery module arrangement, the first battery module and the second battery module each having a housing with a first through contact and
• a second through contact, wherein the first through contact and the second through contact are respectively arranged on an upper side and on a lower side of the respective housing; and where
  • - In a first configuration, the first through contact of the first battery module is adapted to be connected to the first through contact of the second battery module and the second through contact of the first battery module is adapted to be connectable to the second through contact of the second battery module, and
  • - In a second configuration, the first through contact of the first battery module is adapted to be connectable to the second through contact of the second battery module and the second through contact of the first battery module can be isolated from the first through contact of the second battery module.

In this context, the battery system can also be understood as an arrangement of two or more battery modules and have at least two battery modules, which can be configured similarly or identically. In examples, the battery system can have a multiplicity of similar or identically configured battery modules. Furthermore, in examples, the battery system can have add-on parts for arranging the battery modules and have connection contacts that are connected to the through contacts of the battery modules. For example, the term “arrangement next to one another” can be understood to mean an arrangement of the battery modules on top of one another in a battery module stack. In examples, the battery modules can also be arranged next to one another.

The battery modules used can be designed in a similar or identical manner, for example have similar or identical housings, or have similar or identical features, for the modular arrangement of the housings. For example, the housing heights can differ from one another as a function of the number of battery cells located in the housings. The term “battery cell” can be used here to denote a “galvanic cell”. The galvanic cell can be a single primary or secondary cell that can serve as a store for electrical energy on an electrochemical basis.

The housings of the battery modules used can, for example, have a rectangular design in order to be easily stackable with optimal use of the available installation space. In examples, the housings can also be designed differently, depending on the installation space available. For example, the housings can also be cylindrical or polygonal, for example with more than four corners, or be designed as a mixed form with curves and corners.

The term “through contact” can be used here to denote a contact of the battery module, for example a positive pole or a negative pole of the battery cells arranged and interconnected in the battery module. The through contacts are each arranged on the top and on the bottom of the housing. For example, the through contacts can be rail-shaped and run straight through the housing at a right angle to the top and bottom of the housing and each have a contact area of the through contacts, which can also be referred to as a contact section or contact surface, on an opposite housing surface on the top and the Be arranged underside. The contact areas of a contact section can be arranged on the upper side and the lower side at the same distance from the respective housing sides on the opposite surfaces on the surfaces. For example, the contact areas can be designed in the shape of a disk and embedded in the surfaces of the housing and / or protrude at least in areas over the surfaces. In examples, the contact areas can be designed as contact springs in order to enable reliable electrical contact.

For the first and second configuration, the battery modules can be arranged or stacked directly on top of one another, so that the sides of the housing of the battery modules are in alignment with one another. For example, the battery modules can be arranged accordingly in a frame or in a stand, or they can be arranged directly on top of one another without a stand or frame.

In the first configuration of the battery modules, the first through contact of the first battery module is adapted to be connectable to the first through contact of the second battery module and the second through contact of the first battery module is adapted to be connectable to the second through contact of the second battery module.

In the first configuration, by arranging the battery modules on top of one another as an example, the respective first through contacts and the respective second through contacts can connect to one another in order to thereby enable the battery modules arranged in this way to be connected in parallel. Furthermore, further battery modules can also be arranged with the first and second battery modules, for example stacked, in the first configuration, the first through contacts of the battery modules being connectable to one another and the second through contacts of the battery modules being connectable to one another.

In the second configuration of the battery modules, the first through contact of the first battery module is adapted to be connectable to the second through contact of the second battery module and the second through contact of the first battery module is adapted from the first To be insulated through contact of the second battery module.

The second configuration can differ from the first configuration, for example, in that the battery modules used can be arranged alternately rotated by 180 ° horizontally in order to enable the battery modules arranged in this way to be connected in series. As a result, by means of a suitable configuration of the through contacts, the first through contact can be connected to the second through contact by arranging the battery modules on top of one another, for example. In the second configuration, for example, the first through contact of one battery module can be arranged above the second through contact of another battery module.

Furthermore, in the second configuration, the second through contact of the first battery module can be isolated from the first through contact of the second battery module. The terms “isolable” or “isolated” can be used here to describe that the second through contact of the first battery module is not electrically connected to the first through contact of the second battery module, or can be galvanically isolated from the first through contact of the second battery module .

Furthermore, in the second configuration, further battery modules can also be arranged with the first and second battery modules, for example stacked, with a first and a second through contact, or a second and a first through contact, of two battery modules being connectable to one another and at the same time the associated second and first through contacts or first and second through contacts can be isolated from one another. For this purpose, the plurality of battery modules used can be arranged alternately rotated by 180 ° horizontally in order to enable the battery modules arranged in this way to be connected in series.

For example, through an asymmetrical arrangement of the first and second through contacts, or the contact areas on the through contacts, which are arranged on the opposite housing surfaces on the top and bottom, such first and second configurations can be generated.

Here, an asymmetrical arrangement can be understood to mean an arrangement of the first and second through contacts or the contact areas of the through contacts with respect to a center line. The center line can be a median line in the surface of the top and bottom of the housing. The first and second through contacts or the contact areas of the through contacts can be arranged without overlapping from the center line. The second through contact of the battery modules can also have at least one further contact area on the top or the bottom, which is arranged in an electrically conductive manner with the contact area and adjacent to the contact area. Alternatively, the second through contact of the battery modules on the top or the bottom can also have an enlarged contact area, which is arranged on the top or the bottom, for connecting the first through contact of the first battery module to the second through contact of the second battery module in the second configuration. The term “enlarged contact area” can be understood to mean a contact area with which electrical contact can be established over a larger area than, for example, with the contact area of the first through contact.

The possibility of arranging them in the various configurations advantageously results in a modular, scalable battery system that can be very easily adapted and maintained to the respective requirements in terms of current and voltage. The contacting of the battery modules described is still very simple and inexpensive, and the use of additional busbars or cables for electrically connecting the battery modules is eliminated. In a further advantageous manner, both series and parallel connections can be implemented in a simple manner with the same type of battery module.

In one example, the first through contact of the battery modules has contact areas that are electrically conductively connected to one another and arranged opposite one another on the upper side and the lower side of the housing.

The contact areas of the first through contact can each be arranged at the same distance from the housing sides on the opposite surfaces of the housing one below the other, so that if similarly configured battery modules are arranged next to one another, for example stacked on top of one another, the contact areas of the first through contact are connected to one another.

In one example, the second through contact of the battery modules has electrically conductively connected contact areas arranged opposite one another on the top and the bottom, and at least one further contact area electrically conductive with the contact area of the second through contact and adjacent to it on the top or the bottom the contact area of the second Through contact is arranged, or an enlarged contact area of the second through contact is arranged on the top or the bottom.

The further contact area of the second through contact on the upper side or the lower side can lie opposite the contact area with respect to the center line and can be at the same distance from the center line as the contact area.

As an alternative to this, an enlarged contact area is arranged on the top or the bottom, for connecting the first through contact of the first battery module to the second through contact of the second battery module in the second configuration. For example, the enlarged contact area can extend across the center line.

In one example, the first through contact and the second through contact are arranged symmetrically about a common center, and are preferably each arranged in a region of the side surfaces of the housing.

The through contacts can advantageously each be arranged on the side surfaces, which can also be referred to as the sides of the housing. Such an arrangement enables the battery modules to be stacked more easily on top of one another. In further examples, the through contacts can also be arranged in other areas of the housing. For example, the through contacts of a battery module can be arranged around a center of the housing on any housing side in order to enable the battery modules to be arranged one above the other, next to one another or one behind the other.

In one example, the first through contact and the second through contact are spaced from the center line with respect to a center line, in particular a center perpendicular, through the surfaces of the top and bottom of the housing and are arranged without overlapping.

As already described above, an asymmetrical arrangement of the first and second through contacts, or the contact areas on the through contacts, which are arranged on the opposite housing surfaces on the top and bottom, enables such an arrangement in the first and second configurations.

In this example, the asymmetrical arrangement can be made possible by the spaced apart and overlap-free arrangement from the center line.

In one example, the battery modules with the respective first and second through contacts are arranged one above the other in the first configuration and the battery modules are arranged one above the other horizontally rotated relative to one another in the second configuration.

As a result, the battery modules can advantageously be electrically connected to one another in a parallel or series circuit merely by specifically aligning the battery modules one above the other. For example, for a series connection, the battery modules, with their first and second through contacts aligned in the same way, can be stacked on top of one another. For a parallel connection, the battery modules, with their first and second through contacts each horizontally rotated with respect to one another, aligned alternately, and stacked on top of one another. In one example, in the second configuration, the battery modules are arranged one above the other rotated horizontally by 180 ° relative to one another. Furthermore, mixed forms of a series and parallel connection can be implemented in examples. For example, several modules can be connected in series, which can then be connected in parallel with other modules.

In one example, at least one of the through contacts has at least one flat contact, in particular an impact-protected flat contact, a spring-loaded contact, or a plug contact, the flat contact being adapted by sliding at least two battery modules into one another and / or one against the other to a corresponding flat contact on a corresponding battery module to contact electrically.

A flat contact, a spring-loaded contact, or a plug contact can advantageously be arranged on the contact areas of the through contacts or otherwise electrically connected to the through contacts. In this way, suitable contacting of the battery modules can be made possible for a large number of possible applications. For example, in applications in which vibrations occur, spring-loaded contacts can be used to enable vibration-resistant contact. Reliable electrical contacting can also be made possible by an arrangement by means of corresponding plug-in contacts. Further advantageously, battery modules with the flat contacts described above can be designed to be hot-pluggable in order to be interchangeable by sliding them into one another and / or one against the other, even during ongoing operation. As a result, assembly can also be facilitated and reliable electrical contacting can be made possible.

In one example, corresponding connecting elements are arranged on the respective upper and lower sides of the housing, in particular corresponding connecting elements of a tongue and groove connection, for fixing at least two housings to one another, or for sliding at least two housings into one another.

The use of corresponding connecting elements can advantageously simplify the connection and alignment of the housings with respect to one another.

In one example, the housings of at least two battery modules from the plurality of battery modules have different geometries, in particular different heights, widths and / or depths.

The geometries of the housings can differ from one another as a function of the number of battery cells arranged in the housings. For example, battery storage units with different sizes or storage volumes can thus be connected to one another.

In one example, the battery modules each have a first signal contact and a second signal contact on the upper side and on the lower side of the respective housing.

The signal contacts can advantageously be constructed and arranged in the same way as the through contacts already described above. By means of the signal contacts, for example, signals for a battery management system can be sent between the battery modules.

In one example, the first through contact and the second through contact are designed as plus and minus poles of at least one battery module from the plurality of battery modules.

• - in der ersten Konfiguration der erste Durchgangskontakt des dritten Batteriemoduls angepasst ist mit dem ersten Durchgangskontakt des ersten und/oder zweiten Batteriemoduls verbindbar zu sein und der zweite Durchgangskontakt des dritten Batteriemoduls angepasst ist mit dem zweiten Durchgangskontakt des ersten und/oder zweiten Batteriemoduls verbindbar zu sein, und
• - in einer zweiten Konfiguration der erste Durchgangskontakt des dritten Batteriemoduls angepasst ist von dem zweiten Durchgangskontakt des zweiten Batteriemoduls isolierbar zu sein und der zweite Durchgangskontakt des dritten Batteriemoduls angepasst ist mit dem ersten Durchgangskontakt des zweiten Batteriemoduls verbindbar zu sein.

In one example, the battery system has a third battery module, wherein

• - In the first configuration, the first through contact of the third battery module is adapted to be connectable to the first through contact of the first and / or second battery module and the second through contact of the third battery module is adapted to be connectable to the second through contact of the first and / or second battery module , and
• - In a second configuration, the first through contact of the third battery module is adapted to be isolatable from the second through contact of the second battery module and the second through contact of the third battery module is adapted to be connectable to the first through contact of the second battery module.

Advantageously, more than two battery modules can also be arranged and connected in the battery system.

In one example, the battery system has at least one battery management module. For example, like the battery modules described above, the battery management module can have through and / or signal contacts for modular arrangement with at least one battery module in the battery module arrangement. In this case, the battery management module can be responsible for the management of the battery modules connected in the battery module arrangement with regard to charging and discharging and safety as well as for the power output of the connected battery modules.

The invention also relates to a battery module for modular arrangement in a battery system, in particular in a battery system described herein, comprising: a housing with a first through contact and a second through contact, the first through contact and the second through contact each on an upper side and on one Underside of the housing are arranged, and wherein the first through contact and the second through contact with respect to a center line, in particular a center perpendicular, are spaced apart by the surface of the top and bottom of the housing and are arranged without overlapping from the center line.

In one example, the first through contact has contact areas which are arranged opposite one another and are electrically conductively connected to one another on the upper side and the lower side of the housing; and
The second through contact has contact areas that are arranged opposite one another and are electrically conductively connected to one another on the top and the bottom, and at least one further contact area is electrically conductive with the contact area of the second through contact and adjacent to the contact area of the second through contact on the top or the bottom is arranged, or an enlarged contact area of the second through contact is arranged on the top or the bottom.

• 1A, 1B schematische Ansichten aus dem Stand der Technik bekannter Batteriesysteme;
• 2 eine schematische Ansicht eines Batteriemoduls gemäß einer Ausführungsform;
• 3 eine schematische Ansicht eines Batteriesystems mit parallel geschalteten Batteriemodulen gemäß einer Ausführungsform;
• 4 eine schematische Ansicht eines Batteriesystems mit in Reihe geschalteter Batteriemodule gemäß einer Ausführungsform; und
• 5 eine schematische Ansicht eines Batteriesystems mit in Reihe geschalteter Batteriemodule gemäß weiterer Ausführungsformen.

The idea on which the invention is based is to be explained in more detail below with reference to the exemplary embodiments shown in the figures. Show it:

• 1A , 1B schematic views of battery systems known from the prior art;
• 2 a schematic view of a battery module according to an embodiment;
• 3 a schematic view of a battery system with battery modules connected in parallel according to an embodiment;
• 4th a schematic view of a battery system with series-connected battery modules according to an embodiment; and
• 5 a schematic view of a battery system with series-connected battery modules according to further embodiments.

the 1A and 1B show schematic views of battery systems known from the prior art 101 . 1A shows a schematic view of an arrangement of battery modules 103A-103C in parallel connection. In 1B becomes an arrangement of battery modules 103A-103C shown in series connection.

The battery modules 103A-103C are stacked on top of each other and the contacts of the battery modules 103A-103C that as positive pole + and negative pole - are located on the individual battery modules when viewed from the front 103A-103C .

In the prior art, the positive poles shown are dependent on the desired circuit + and / or negative poles - connected to one another with connecting elements such as ribbons, rails, bridges, or cables. The fasteners are in the 1A and 1B exemplified by lines between the poles + / - shown.

However, as already described, the assembly in the 1A and 1B shown battery systems 101 a lot of effort for the interconnection of the battery modules 103A-103C between each other necessary.

2 shows a schematic view of a battery module 3A according to one embodiment.

For a better illustration there are two opposite side surfaces of the housing 5 with the first through contact 7A and the second through contact 7B again as a top view to the left and right of the housing 5 shown. At the left and right of the case 5 The representations shown are an "unfolded" representation of the side surface of the housing 5 . In the embodiment shown, the first is a through contact 7A as positive pole + formed and the second through contact 7B is as negative pole - educated.

The first through contact 7A and the second through contact 7B are each on a top 9A and at a bottom 9B of the housing 5 arranged. Furthermore, in 2 shown that the first through contact 7A and the second through contact 7B with respect to a center line falling in 2 shown as a dashed line and through the area of the top 9A and the bottom 9B of the housing 5 runs, spaced apart and without overlapping from the center line are arranged opposite one another.

The first through contact 7A is each on the top 9A and the bottom 9B of the housing 5 arranged opposite one another and has contact areas connected to one another in an electrically conductive manner 11A , 11B on.

The second through contact 7B is also each on the top 9A and the bottom 9B of the housing 5 arranged opposite one another and has contact areas connected to one another in an electrically conductive manner 13A-13C on. As in 2 shown is on the top 9A another contact area 13B electrically conductive with the contact area 13A on the top 9A and adjacent to the contact area 13A on the top 9A arranged. As shown, the further contact area is located 13B on the top 9A the contact area 13A on the center line drawn in dashed lines opposite and can be at the same distance from the center line as the contact area 13A .

In the 2 contact areas shown 11A , 11B , 13A-13C are shown by way of example as plug contacts.

3 shows a schematic view of a battery system 1 with battery modules connected in parallel 3A , 3B according to one embodiment.

In the in 3 The embodiment shown is the battery system 1 as an arrangement of two stacked similar or identical battery modules 3A , 3B of the same type shown. In the 3 battery modules shown 3A , 3B can do this beforehand in 2 battery module shown.

In 3 becomes an arrangement of the battery modules 3A , 3B shown in the first configuration.

As shown are the battery modules 3A , 3B arranged directly on top of one another, or stacked, so that the sides of the housing 5 of the battery modules 3A , 3B lying in flight with each other. In the first configuration shown, the first is through contact 7A of the first battery module 3A with the first through contact 7A of the second battery module 3B connected and the second Through contact 7B of the first battery module 3A is with the second through contact 7B of the second battery module 3B connected.

By evenly arranging the battery modules 3A , 3B each other with the respective first through contacts 7A and second through contacts 7B one above the other, the battery modules arranged in this way are connected in parallel 3A , 3B enables.

4th shows a schematic view of a battery system 1 with battery modules connected in series 3A-3C according to one embodiment.

In the in 4th The embodiment shown is the battery system 1 as an arrangement of three stacked similar battery modules 3A-3C shown. In the 3 battery modules shown 3A-3C are similar to those already in the 2 and 3 battery modules shown. In 4th becomes an arrangement of the battery modules 3A-3C shown in the second configuration.

In the second configuration, the first is through contact 7A of the first battery module 3A with the second through contact 7B of the second battery module 3B connected and the second through contact 7B of the first battery module 3A is from the first through contact 7A of the second battery module 3B isolated.

Furthermore shows 4th a third battery module 3C . In the second configuration shown, the first is through contact 7A of the third battery module 3C from the second through contact 7B of the second battery module 3B isolated and the second through contact 7B of the third battery module 3C is with the first through contact 7A of the second battery module 3B connected.

Like in the 4th shown, the second configuration differs from the first configuration in that the battery modules used 3A-3C are arranged alternately or alternately, horizontally rotated by 180 ° to one another, around a series connection of the battery modules arranged in this way 3A-3C to enable.

5 shows a schematic view of a battery system 1 with battery modules connected in series 3A-3C according to further embodiments.

The battery modules shown 3A-3C point on the respective upper and lower sides of the housing 5 corresponding connecting elements 15A , 15B on. The corresponding connecting elements shown 15A , 15B are shown as a tongue and groove connection and are used to fix housings arranged one above the other 5 of the battery system 1 customized.

Furthermore, in the embodiment shown, the battery modules 3A-3C Signal contacts 17A , 17B on the respective housings 5 on. The signal contacts 17A , 17B can be constructed and arranged in the same way as the through contacts 7A , 7B . For example, by means of the signal contacts 17A , 17B Signals from a battery management system between the battery modules 3A-3C be sent.

An enlarged contact area is also exemplified 13th on the battery module 3A shown. For example, as an alternative to the battery module shown 3C arranged contact areas 13A , 13B only one contact area at the top of the negative pole 13th on the housing 5 be arranged as it is on the battery module 3A is shown as an example.

In the embodiment shown, the housing is 5 of the third battery module 3C higher than the housing 5 the first and second battery modules 3A , 3B . The housing heights can differ from one another in embodiments. For example, depending on the number of in the housings 5 arranged battery cells, the housing 5 be different levels. By using different housing heights, battery storage units with different sizes or storage volumes can be connected to one another.

List of reference symbols

101

State of the art battery system

103A-103C

State-of-the-art battery modules

+

Positive pole

-

Negative pole

1

Battery system

3A-3C

Battery module

5

casing

7A, 7B

first, second through contact

9A

Top

9B

bottom

11A, 11B

Contact areas of the first through contact

13, 13A-13C

Contact areas of the second through contact

15A, 15B

Fasteners

17A, 17B

Signal contacts

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 2018/059267 A1 [0004]
• EP 3288353 A2 [0005]
• WO 2010/124562 A1 [0006]
• WO 2008/144994 A1 [0006]
• US 5737189 A [0006]
• EP 2612386 B1 [0006]
• US 2001026306 A1 [0006]

Claims (15)

Battery system for the modular arrangement of battery modules (3A - 3C), comprising: a plurality of battery modules (3A-3C), the plurality having at least a first battery module (3A) and a second battery module (3B), which are adapted to be arranged next to one another in a battery module arrangement, wherein the first battery module (3A) and the second battery module (3B) each have a housing (5) with a first through contact (7A) and a second through contact (7B), the first through contact (7A) and the second through contact (7B) each on an upper side (9A) and on a lower side (9B) the respective housings (5) are arranged; and where - In a first configuration, the first through contact (7A) of the first battery module (3A) is matched with the first through contact (7A) of the second battery module (3B) and the second through contact (7B) of the first battery module (3A) is matched with the second To be connectable through contact (7B) of the second battery module (3B), and - In a second configuration, the first through contact (7A) of the first battery module (3A) is adapted to be connectable to the second through contact (7B) of the second battery module (3B) and the second through contact (7B) of the first battery module (3A) from the first through contact (7A) of the second battery module (3B) to be isolated. System according to Claim 1 , characterized in that the first through contact (7A) of the battery modules (3A, 3B) each on the top (9A) and the bottom (9B) of the housing (5) oppositely arranged, electrically conductively interconnected contact areas (11A, 11B) having. System according to one of the Claims 1 or 2 , characterized in that the second through contact (7B) of the battery modules (3A, 3B) has electrically conductive interconnected contact areas (13A, 13C) arranged opposite one another on the upper side (9A) and the lower side (9B), and wherein on the top (9A) or the bottom (9B) at least one further contact area (13B) is arranged in an electrically conductive manner with the contact area (13A) of the second through contact (7B) and adjacent to the contact area (13A) of the second through contact (7B), or an enlarged contact area (13) of the second through contact (7B) is arranged on the upper side (9A) or the lower side (9B). System according to one of the preceding claims, characterized in that the first through contact (7A) and the second through contact (7B) are arranged symmetrically about a common center, and are preferably each arranged in a region of the side surfaces of the housing (5). System according to one of the preceding claims, characterized in that the first through contact (7A) and the second through contact (7B) with respect to a center line, in particular a perpendicular, through the surfaces of the top (9A) and bottom (9B) of the housing (5) are spaced apart and are arranged without overlap from the center line. System according to one of the preceding claims, characterized in that in the first configuration the battery modules (3A, 3B) with the respective first and second through contacts (7A, 7B) are arranged one above the other and in the second configuration the battery modules (3A, 3B) are arranged relatively are arranged rotated horizontally one above the other. System according to Claim 6 , characterized in that, in the second configuration, the battery modules (3A, 3B) are arranged one above the other horizontally rotated by 180 ° relative to one another. System according to one of the preceding claims, characterized in that at least one of the through contacts (7A, 7B) has at least one flat contact, in particular an impact-protected flat contact, a spring-loaded contact, or a plug contact, the flat contact being adapted by interlocking and / or Pushing at least two battery modules (3A, 3B) together to make electrical contact with a corresponding flat contact on a corresponding battery module. System according to one of the preceding claims, characterized by corresponding connecting elements (15A, 15B), in particular corresponding connecting elements of a tongue and groove connection, arranged on the top (9A) of the housing (5) and on the underside (9B) of the housing (5) , for fixing at least two housings (5) to one another, or for sliding at least two housings (5) into one another. System according to one of the preceding claims, characterized in that the housings (5) of at least two battery modules (3B, 3C) from the plurality of battery modules (3A-3C) have different geometries, in particular different heights, widths and / or depths. System according to one of the preceding claims, characterized in that the battery modules (3A, 3B) each have a first signal contact (17A) and a second signal contact (17B) on the top (9A) and on the bottom (9B) of the respective housing (5 ) exhibit. System according to one of the preceding claims, characterized in that the first through contact (7A) and the second through contact (7B) are designed as plus and minus poles of at least one battery module (3A - 3C) from the plurality of battery modules (3A - 3C). System according to one of the preceding claims, characterized by a third battery module (3C), wherein - in the first configuration, the first through contact (7A) of the third battery module (3C) is matched with the first through contact (7A) of the first and / or second battery module (3A, 3B) to be connectable and the second through contact (7B) of the third battery module (3C) is adapted to be connectable to the second through contact (7B) of the first and / or second battery module (3A, 3B), and - in one second configuration, the first through contact (7A) of the third battery module (3C) is adapted to be isolated from the second through contact (7B) of the second battery module (3B) and the second through contact (7B) of the third battery module (3C) is adapted to the first To be connectable through contact (7A) of the second battery module (3B). Battery module for modular arrangement in a battery system (1), in particular in a battery system (1) according to one of the preceding claims, comprising: a housing (5) with a first through contact (7A) and a second through contact (7B), the first through contact (7A) and the second through contact (7B) each on an upper side (9A) and on a lower side (9B) of the housing (5) are arranged, and wherein the first through contact (7A) and the second through contact (7B) with respect to a center line, in particular a center perpendicular, by the surface of the top (9A) and the bottom (9B) of the housing (5) and spaced are arranged without overlap from the center line to one another. Battery module after Claim 14 , characterized in that the first through contact (7A) has on the top (9A) and the bottom (9B) of the housing (5) oppositely arranged, electrically conductively interconnected contact areas (11A, 11B); and the second through contact (7B) has contact areas (13A, 13C) arranged opposite one another and electrically conductively connected to one another on the upper side (9A) and the lower side (9B), and wherein on the upper side (9A) or the lower side (9B) at least one further contact area (13B) is arranged in an electrically conductive manner with the contact area (13A) of the second through contact (7B) and adjacent to the contact area (13A) of the second through contact (7B), or an enlarged contact area (13) of the second through contact (7B) ) is arranged on the top (9A) or the bottom (9B).

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