DE102022103702A1 - battery cell - Google Patents

Abstract

A battery cell (20) has a housing (30), an electrode stack arrangement (50) and at least one connection element (38, 39), which electrode stack arrangement (50) is arranged in the housing (30) and first electrode arrangements (51) and second electrode arrangements ( 52), which housing (30) has a cuboid basic shape with a first housing side (33), a second housing side (34), a third housing side (35), a fourth housing side (36), a fifth housing side (31) and a sixth housing side (32), which has at least one connection element (38, 39) which is electrically conductive, can be contacted from an outside (22) of the housing (20) and is electrically connected to the first electrode arrangements (51) or second electrode arrangements (52). which at least one connection element (38, 39) comprises a first connection element (38), which housing (30) comprises a first housing part (23) and a second housing part (25), which first housing part (23) is connected to the first connection element (38 ) is connected via a first adhesive connection (101) and to the second housing part (25) via a second adhesive connection (102).

Description

The invention relates to a battery cell.

The DE 10 2016 213 138 A1 shows a battery cell with a plurality of housing components which are tightly bonded to one another at opposite abutting surfaces by means of an adhesive bond.

The EP 3 196 955 B1 shows a battery module with a housing and partitions.

The DE 10 2014 206 897 A1 shows a battery cell with a cover element. The EP 2 333 869 A1 shows a battery with multiple housing sections.

US 2011/0 171 507 A1 shows a battery with stacked rolled-up electrodes and a housing cap.

The EP 2 399 307 B1 shows a galvanic cell with a multi-part housing. The DE 601 14 893 T2 shows an alkaline battery with adhesive closure.

It is therefore an object of the invention to provide a new battery cell.

This object is solved by the subject matter of the independent patent claim.

• - die erste Verbindung,
• - die zweite Verbindung, oder
• - die erste Verbindung und die zweite Verbindung

als Klebeverbindung ausgebildet sind.A battery cell has a housing, an electrode stack arrangement and at least one connection element, which electrode stack arrangement is arranged in the housing and has first electrode arrangements and second electrode arrangements, which housing has a cuboid basic shape with a first housing side, a second housing side, a third housing side, a fourth housing side, a fifth housing side and a sixth housing side, which first housing side is provided opposite to the second housing side, which third housing side is provided opposite to the fourth housing side, which fifth housing side is provided opposite to the sixth housing side, which first electrode arrangements have first electrodes and first strip elements which second electrode arrangements have second electrodes and second strip elements, which at least one connection element is designed to be electrically conductive, can be contacted from an outside of the housing and is electrically connected to the first strip elements or second strip elements, which at least one connection element comprises a first connection element, which first connection element is connected to the first housing side and is electrically connected to the first strip elements, which housing comprises a first housing part and a second housing part, which first housing part is connected to the first connection element via a first connection and to the second housing part via a second connection, wherein

• - the first connection,
• - the second connection, or
• - the first connection and the second connection

are designed as an adhesive bond.

The design as an adhesive connection allows a comparatively free choice of material for the components, and good heat transfer is made possible. In addition, the first housing part enables good heat transport between the connection element and the second housing part, and good heat transport from the inside of the battery cell to the connection element is also possible via the connected strip elements. Together they form a battery cell with good heat conduction properties. In addition, glued connections enable a tightness that previously usually required a welded connection or a clamp/caulking connection. The adhesive connections allow greater tolerances, since larger joints can also be closed. In addition, the assembling process can be performed without force, and the number of assembling steps can be reduced. Another advantage compared to welding is that when gluing, there is no heat or dirt input from welding.

• - die erste Verbindung,
• - die zweite Verbindung, oder
• - die erste Verbindung und die zweite Verbindung

zumindest abschnittsweise mindestens eine Klebefläche auf. Eine Klebefläche ermöglicht eine gute Klebeverbindung.According to a preferred embodiment

• - the first connection,
• - the second connection, or
• - the first connection and the second connection

at least in sections on at least one adhesive surface. An adhesive surface enables a good adhesive connection.

• - die erste Verbindung,
• - die zweite Verbindung, oder
• - die erste Verbindung und die zweite Verbindung

zumindest abschnittsweise mindestens zwei zusammenhängende Klebeflächen auf, welche mindestens zwei zusammenhängenden Klebeflächen einen Winkel zueinander aufweisen. Zwei nicht parallele, zusammenhängende Klebeflächen ermöglichen eine sehr gute Klebeverbindung und eine prozesssicher fluiddicht herstellbare Klebeverbindung.According to a preferred embodiment

• - the first connection,
• - the second connection, or
• - the first connection and the second connection

at least in sections at least two contiguous adhesive surfaces, which have at least two contiguous adhesive surfaces at an angle to each other. two non-parallel, Coherent adhesive surfaces enable a very good adhesive connection and an adhesive connection that can be produced in a fluid-tight manner in a process-reliable manner.

According to a preferred embodiment, the at least two connected adhesive surfaces are each formed between the first housing part on the one hand and the connection element or the second housing part on the other hand.

• - der ersten Verbindung,
• - der zweiten Verbindung, oder
• - der ersten Verbindung und der zweiten Verbindung

zumindest abschnittsweise mit dem ersten Anschlusselement oder mit dem zweiten Gehäuseteil. Eine solche Überlappung ermöglicht in bevorzugter Weise eine prozesssicher herstellbare Klebeverbindung.According to a preferred embodiment, the first housing part overlaps at

• - the first connection,
• - the second connection, or
• - the first connection and the second connection

at least in sections with the first connection element or with the second housing part. Such an overlap preferably enables an adhesive connection that can be produced in a process-reliable manner.

• - die erste Verbindung,
• - die zweite Verbindung, oder
• - die erste Verbindung und die zweite Verbindung

als gasdichte Verbindungen ausgeführt. Durch die erste und zweite Verbindung gelangt also kein Gas in das Gehäuse hinein oder aus diesem heraus, und die Dichtigkeit ist über eine solche Verbindung gut herstellbar.According to a preferred embodiment

• - the first connection,
• - the second connection, or
• - the first connection and the second connection

designed as gas-tight connections. No gas can get into or out of the housing through the first and second connection, and the tightness can be easily established via such a connection.

According to a preferred embodiment, the first housing part has a first material, which first material is an electrically non-conductive material, in particular a ceramic material or a plastic. Such a material increases the security against short circuits and allows the use of an electrically conductive second housing part.

According to a preferred embodiment, the second housing part is provided at least in sections on the fourth side of the housing. With this lateral attachment, a good cooling effect can be achieved.

According to a preferred embodiment, the first housing part forms the first housing side and the fourth housing side at least in sections. The first housing part thus forms not only the first side of the housing, but also at least one other adjacent side of the housing.

According to a preferred embodiment, the first housing part is connected to the second housing part at least in sections on the fourth housing side by the second connection. As a result, the second housing part can be designed more simply.

According to a preferred embodiment, the second housing part extends at least in sections to the third side of the housing, to the fourth side of the housing, to the fifth side of the housing and to the sixth side of the housing. Such an all-round housing enables simple assembly.

According to a preferred embodiment, the first housing part is connected to the second housing part at least in sections on the third housing side, on the fourth housing side, on the fifth housing side and on the sixth housing side by the second connection. Such a peripheral connection enables a good seal.

According to a preferred embodiment, the second housing part has a second material, which second material is a metallic material. A metallic material such as aluminium, an aluminum alloy or steel enables a very good cooling effect.

• - Polyethylen,
• - Polypropylen,
• - Polyamid,
• - Polyethylenterephthalat,
• - Polybutylenterephthalat,
• - Phenoplaste,
• - Epoxidharze,
• - Aluminiumoxid,
• - Aluminiumnitrid,
• - Berylliumoxid,
• - Zirconium(IV)-Oxid,
• - Titan(IV)-Oxid,
• - Siliciumcarbid,
• - Siliciumnitrid,
• - Bornitrid, und
• - Borcarbid.

According to a preferred embodiment, the first material has at least one material from the first group of materials consisting of:

• - polyethylene,
• - polypropylene,
• - polyamide,
• - polyethylene terephthalate,
• - polybutylene terephthalate,
• - phenolic,
• - epoxy resins,
• - aluminum oxide,
• - aluminum nitride,
• - beryllium oxide,
• - zirconium(IV) oxide,
• - titanium(IV) oxide,
• - silicon carbide,
• - silicon nitride,
• - boron nitride, and
• - boron carbide.

These are well suited plastics and ceramics, with ceramics enabling particularly good heat conduction.

According to a preferred embodiment, the first housing part consists of at least 50% of the first material, preferably at least 60%, more preferably at least 70%, more preferably at least 80% and particularly preferably at least 90%. This enables good heat conduction.

According to a preferred embodiment, the at least one connection element comprises a second connection element, which second connection element is electrically connected to the second strip elements, which housing comprises a third housing part, which third housing part has a third material, and which third housing part is connected to the second connection element via a third Connection and is connected to the second housing part via a fourth connection. This enables an advantageous structure of the battery cell.

According to a preferred embodiment, the second connection element is provided on the second side of the housing. This design enables a space-saving connection of the first and second electrode arrangements on opposite sides and short contact paths with the associated low electrical resistance and good thermal conductivity.

According to a preferred embodiment, the third material is an electrically non-conductive material, in particular a ceramic material or a plastic. This has the same advantages as the first material.

According to a preferred embodiment, the third housing part consists of at least 50% of the first material, preferably at least 60%, more preferably at least 70%, more preferably at least 80% and particularly preferably at least 90%. This enables good heat conduction.

According to a preferred embodiment, the at least one connection element has copper or a copper alloy. Copper and copper alloys are good conductors of heat and electricity and have been found to be beneficial.

According to a preferred embodiment, the first electrodes are positive and the second electrodes are negative, or vice versa. The allocation to the connecting elements is advantageously used as a result.

According to a preferred embodiment, the battery cell has IP protection class IP67 or higher according to DIN EN 60529.

According to a preferred embodiment, the strip elements are connected to the associated connection element on the inside of the housing. This embodiment offers protection of the connection area and increases the service life of the battery cell.

According to a preferred embodiment, the first housing part and/or the third housing part are in contact with at least one first strip element or second strip element. This is possible because of the insulating effect of the first housing part and/or the third housing part, and the strip elements enable very good heat transport with regard to the electrodes.

• 1 in schematischer Darstellung von oben eine Batteriezelle,
• 2 in schematischer Darstellung von vorne die Batteriezelle von 1,
• 3 in schematischer Darstellung von links die Batteriezelle von 1,
• 4 in einer Seitenansicht eine Elektrodenanordnung,
• 5 in einer Draufsicht die Elektrodenanordnung von 4,
• 6 in einer in Längsrichtung geschnittenen Darstellung die Batteriezelle von 1,
• 7 in schematischer Draufsicht von oben die Batteriezelle von 1 mit einer ersten Ausführungsform eines Gehäuseteils,
• 8 in schematischer raumbildlicher Darstellung die Batteriezelle von 7, und
• 9 in schematischer Draufsicht von oben die Batteriezelle von 1 mit einer zweiten Ausführungsform eines Gehäuseteils.

Further details and advantageous developments of the invention result from the exemplary embodiments described below and illustrated in the drawings, which are in no way to be understood as limiting the invention, and from the dependent claims. It goes without saying that the features mentioned above and those still to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention. It shows:

• 1 a battery cell in a schematic representation from above,
• 2 in a schematic representation from the front of the battery cell 1 ,
• 3 in a schematic representation from the left the battery cell of 1 ,
• 4 in a side view an electrode arrangement,
• 5 in a plan view the electrode arrangement of FIG 4 ,
• 6 in a longitudinally sectioned representation of the battery cell 1 ,
• 7 in a schematic plan view from above the battery cell of 1 with a first embodiment of a housing part,
• 8th in a schematic three-dimensional representation of the battery cell 7 , and
• 9 in a schematic plan view from above the battery cell of 1 with a second embodiment of a housing part.

In the following, parts that are the same or have the same effect are provided with the same reference symbols and are usually only described once ben. The description builds on one another across figures in order to avoid unnecessary repetition.

1 shows a battery cell 20 from above. The battery cell 20 is designed as a prismatic cell and has a housing 30, a connection element 38 and a connection element 39.

The housing 30 has a cuboid basic shape with a housing side 31 (top), a housing side 33 (left), a housing side 34 (right), a housing side 35 (front) and a housing side 36 (rear). The housing side 33 is provided opposite to the housing side 34, ie they are on opposite sides of the housing 30. The housing side 35 is provided to the housing side 36 opposite. The connection element 38 is provided on the housing side 33 and can be contacted from the outside on the housing side 33 . The connecting element 39 is provided on the housing side 34 and can be contacted from the outside on the housing side 34 . The battery cell 20 can provide electrical energy via the connection elements 38, 39, and the connection elements 38, 39 can also be referred to as poles.

2 shows the battery cell 20 of FIG 1 in an illustration from the housing side 35 (front).

The housing side 32 (bottom) is provided opposite the housing side 31 (top).

3 shows the battery cell 20 of FIG 1 in an illustration from the housing side 33 (left). A housing part 23 and the connection element 38 are provided on the housing side 33 .

4 shows a side view of an electrode arrangement 51 or 52, which has an electrode 61 or 62 and a strip element 55 or 56. Such strip elements 55, 56 are referred to in English as "tab" and are used to contact the electrode 61 or 62.

The electrode 61 or 62 has a longitudinal direction 91 and a transverse direction 92 transverse to the longitudinal direction 91.

5 shows the electrode arrangement 51, 52 from FIG 4 .

The electrode arrangement 51 or 52 has a film 53, which is also referred to as a conductor film and allows current to flow as an electrical conductor. In the area of the electrodes 61, 62, an active material layer 54 is provided on one side of the foil 53 or on both sides. The thickness 93 of the electrodes 61, 62 is preferably in the range of 15 μm to 2 mm.

The strip element 55 or 56 is preferably at least partially or completely free of the active material layer 54, since this region is not effective for the galvanic cell and is also usually less electrically conductive than the film 53. In addition, the strip element 55 or .

The thickness 94 is preferably in the range of 4 μm to 50 μm.

The battery cell is preferably designed as a lithium-ion battery cell.

• - Lithium-Cobalt(III)-Oxid,
• - Lithium-Nickel-Mangan-Cobalt-Oxid,
• - Lithium-Nickel-Cobalt-Aluminium-Oxid, oder
• - Lithiumeisenphosphat.

Here, the positive electrode assembly 51 preferably has a foil 53 made of aluminum or an aluminum alloy, and the active material layer 54 preferably has an active material such as

• - lithium cobalt(III) oxide,
• - lithium nickel manganese cobalt oxide,
• - lithium nickel cobalt aluminum oxide, or
• - lithium iron phosphate.

• - Graphit,
• - nanokristallines, amorphes Silicium,
• - Lithiumtitanat, oder
• - Zinndioxid.

The negative electrode assembly 52 preferably includes a copper or copper alloy foil 53, and the active material layer 54 preferably includes an active material such as

• - graphite,
• - nanocrystalline, amorphous silicon,
• - lithium titanate, or
• - tin dioxide.

The active material layers 54 can each additionally have additives.

• - Natrium-Schwefel-Batteriezelle,
• - Nickel-Eisen-Batteriezelle, oder
• - Nickel-Zink-Batteriezelle.

The battery cell 20 can also be constructed as a different cell type, for example as a

• - sodium-sulphur battery cell,
• - Nickel-iron battery cell, or
• - Nickel-zinc battery cell.

The battery cell 20 is preferably rechargeable, and such a battery cell 20 is also referred to as a secondary cell or secondary element.

The electrode arrangement 51 can also be negative and the electrode arrangement 52 positive, so that the connection element 38 is negative and the connection element 39 is positive.

6 shows the battery cell 20 from above in a longitudinal section.

An electrode stack assembly 50 is provided in the case 30 , and the electrode stack assembly 50 includes the electrode assemblies 51 and the electrode assemblies 52 . Separators 63 are preferably provided between the electrodes 61 of the electrode arrangements 51 and the electrodes 62 of the electrode arrangements 52 . In the exemplary embodiment, electrodes 61 and electrodes 62 are always provided alternately. It is also possible to provide two identical electrodes 61 or two identical electrodes 62 adjacent to one another, at least partially, for example in the middle.

An electrolyte 64 is also provided in the housing 30 in order to enable an ion flow.

The electrodes 61 and 62 extend in their longitudinal direction 91 between the housing side 33 and the housing side 34. The longitudinal direction 91 can therefore be defined relative to the housing sides 33, 34. Alternatively, the longitudinal direction 91 can be defined relative to the connection elements 38, 39, since these are provided on the housing sides 33, 34. All electrodes 61, 62 preferably extend in the same longitudinal direction 91. However, the longitudinal direction 91 can also be slightly different, at least in part. The strip members 55 of the electrode assemblies 51 are positioned on the side associated with the case 33 side, and the strip members 56 are positioned on the side associated with the case 34 side.

The terminal member 38 is electrically connected to the electrodes 61 via the strip members 55 and the terminal member 39 is electrically connected to the electrodes 62 via the strip members 56 . A first plurality 551 of the first strip elements 55 and a second plurality 552 of the first strip elements 55 are connected to the first connecting element 38, and a first plurality 561 of the second strip elements 56 and a second plurality 562 of the second strip elements 56 are connected to the second connecting element 39 tied together.

The connecting elements 38, 39 preferably have copper or a copper alloy. These materials allow good heat conduction and have low electrical resistance.

The housing 30 defines an inside 21 and an outside 22. The connection elements 38, 39 can be contacted from the outside 22 of the housing 20.

The housing 30 preferably has the housing part 23, a housing part 24 and a housing part 25. The housing parts 23 and 24 preferably have a first material, which first material is an electrically non-conductive material, in particular a ceramic material or a plastic. As a result, the housing parts 23, 24 act as insulators, and this allows a comparatively free choice of material for the housing part 25. In particular, a short circuit of the two connection elements 38, 39 via a possibly electrically conductive housing part 25 is prevented. Due to their good thermal conductivity, metals are well suited as a material for the housing part 25, for example aluminum, an aluminum alloy or titanium. The insulation of the housing 30 from the connection elements 38, 39 is particularly advantageous when battery cells are connected in series, since in such a series connection the individual connection elements 38, 39 can be at a comparatively high voltage compared to the reference point on the chassis of a vehicle.

The housing part 23 is connected to the connection element 38 via a connection 101 and to the housing part 25 via a connection 102 . The housing part 24 is connected to the connection element 39 via a connection 103 and to the housing part 25 via a connection 104 .

• - Polyethylen,
• - Polypropylen,
• - Polyamid,
• - Polyethylenterephthalat,
• - Polybutylenterephthalat,
• - Phenoplaste, und
• - Epoxidharze.

The first material is preferably a plastic from the group of materials consisting of:

• - polyethylene,
• - polypropylene,
• - polyamide,
• - polyethylene terephthalate,
• - polybutylene terephthalate,
• - phenolic, and
• - epoxy resins.

• - Aluminiumoxid,
• - Aluminiumnitrid,
• - Berylliumoxid,
• - Zirconium(IV)-Oxid,
• - Titan(IV)-Oxid,
• - Siliciumcarbid,
• - Siliciumnitrid,
• - Bornitrid, und
• - Borcarbid.

The first material is preferably a ceramic material from the group of materials consisting of:

• - aluminum oxide,
• - aluminum nitride,
• - beryllium oxide,
• - zirconium(IV) oxide,
• - titanium(IV) oxide,
• - silicon carbide,
• - silicon nitride,
• - boron nitride, and
• - boron carbide.

These materials enable comparatively good heat transfer and electrical insulation.

The housing part 23 and the housing part 24 can also be made of different first materials.

The housing parts 23, 24 preferably consist of at least 50% of the first material, preferably at least 60%, more preferably at least 70%, more preferably at least 80% and particularly preferably at least 90%.

The second housing part 25 is preferably provided at least in sections on the fourth housing side 36, and more preferably it extends at least in sections on the third housing side 35, on the fourth housing side 36, on the fifth housing side 31 and on the sixth housing side 32.

The first housing part 23 preferably forms the first housing side 33 and the fourth housing side 36 at least in sections, and particularly preferably the first housing part 23 forms at least in sections the first housing side 33, the third housing side 35, the fourth housing side 36, the fifth housing side 31 and the sixth side of the housing 32 from.

The first housing part 23 is preferably connected to the second housing part 25 at least in sections on the fourth housing side 36, and it is particularly preferred at least in sections on the third housing side 35, on the fourth housing side 36, on the fifth housing side 31 and on the sixth housing side 32 connected to the second housing part 25.

The connection elements 38, 39 are indicated schematically. Concrete exemplary embodiments for the connection elements 38, 39 and the connection with the housing parts 23, 24 are given below.

7 shows the battery cell 20 with the electrode stack arrangement 50, the connection element 38 and the housing parts 23, 25. The connection element 38 extends from the outside 22 of the housing 30 through the housing 30 to the inside 21 of the housing 30. The connection element 38 is connected to the Strip elements 55 of the first electrode arrangements 51 or with the strip element stacks 551 and 552 are electrically and mechanically connected, for example by welding. The connection element 38 can be formed in two parts.

The housing part 23 is connected to the connection element 38 via the first connection 101 and to the housing part 25 via the second connection 102 . In the exemplary embodiment, the first connection 101 and the second connection 102 are designed as adhesive connections, but it is also possible for only one of the two connections 101, 102 to be designed as an adhesive connection.

The first connection 101 and the second connection 102 preferably have, at least in sections, at least one adhesive surface 111, 112, 113, 114 and more preferably exactly one single adhesive surface 111 or 112 or 113 or 114. Providing a single bonding surface can simplify the bonding process.

The first connection 101 and the second connection 102 preferably have, at least in sections, at least two connected adhesive surfaces 111, 112 or 113, 114, which at least two connected adhesive surfaces 111, 112 or 113, 114 have an angle 120 to one another. The adhesive surfaces 111, 112 or 113, 114 are therefore not parallel but at an angle to one another. In both connections 101, 102, the angle 120 is preferably in the range of 20° to 160°. The quality of the adhesive connections 111, 112 and the process reliability can be increased by the angle 120.

The first housing part 23 preferably overlaps at least in sections with the first connection 101 and/or the second connection 102 with the first connection element 38 or with the second housing part 25. This results in at least two adhesive surfaces 111, 112 or 113, 114 on the front side and on the side of the components.

In the exemplary embodiment, the connection element 38 has a collar 381, which enables an overlap.

The housing part 23 is designed as a molded part with a step in the area of the connection 102 .

By designing the first connection 101 and the second connection 102 as adhesive connections, they can advantageously be designed as gas-tight connections. This is particularly advantageous with regard to the electrolyte 64 in the housing 30, cf. 6 .

8th shows the battery cell from 7 in a longitudinal section. The Connection element 38 is designed as a profile part in the exemplary embodiment, so it has a constant profile at least in sections in one direction (here parallel to the strip elements 55). This enables a good electrical connection to the strip elements 55.

9 shows a further embodiment of the battery cell 20 in a plan view, in which the housing part 23 has a different shape. The housing part 23 of the cuboid housing 30 is reduced compared to the embodiment of FIG 7 the cavity in the inner space 21 of the housing 30. As a result, it is closer to the strip elements 55, and improved heat transfer between the strip elements 55 and the housing part 23 can take place. In a preferred embodiment, the housing part 23 is in contact with at least one strip element 55.

A wide range of variations and modifications are of course possible within the scope of the present invention.

The exemplary embodiments were explained at several points solely on the basis of the connection element 38 and the housing part 23 . Preferably, all statements correspondingly apply to the connection element 39 and the housing part 24. Alternatively, the connection element 39 and the housing part 24 can be designed differently.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited 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

• DE 102016213138 A1 [0002]
• EP 3196955 B1 [0003]
• DE 102014206897 A1 [0004]
• EP 2333869 A1 [0004]
• EP 2399307 B1 [0006]
• DE 60114893 T2 [0006]

Claims (18)

Battery cell (20), which has a housing (30), an electrode stack arrangement (50) and at least one connection element (38, 39), which electrode stack arrangement (50) is arranged in the housing (30) and has first electrode arrangements (51) and second electrode arrangements (52), which housing (30) has a cuboid basic shape with a first housing side (33), a second housing side (34), a third housing side (35), a fourth housing side (36), a fifth housing side (31) and a sixth housing side (32) having, which first housing side (33) is provided opposite to the second housing side (34), which third housing side (35) is provided opposite to the fourth housing side (36), which fifth housing side (31) is provided opposite to the sixth housing side (32), which first electrode arrangements (51) have first electrodes (61) and first strip elements (55), which second electrode arrangements (52) have second electrodes (62) and second strip elements (56), which at least one connection element (38, 39) is designed to be electrically conductive, can be contacted from an outside (22) of the housing (20) and is electrically connected to the first strip elements (55) or second strip elements (56), which at least one connection element (38, 39) comprises a first connection element (38), which first connection element (38) is provided on the first housing side (33) and is electrically connected to the first strip elements (55), which housing (30). first housing part (23) and a second housing part (25), which first housing part (23) is connected to the first connecting element (38) via a first connection (101) and to the second housing part (25) via a second connection (102), wherein - the first connection (101), - the second connection (102), or - The first connection (101) and the second connection (102) are designed as an adhesive connection. Battery cell (20) after claim 1 , in which - the first connection (101), - the second connection (102), or - the first connection (101) and the second connection (102) have at least one adhesive surface (111; 112; 113; 114) at least in sections. Battery cell (20) after claim 1 or 2 , in which - the first connection (101), - the second connection (102), or - the first connection (101) and the second connection (102) have at least two connected adhesive surfaces (111, 112; 113, 114) at least in sections , which have at least two contiguous adhesive surfaces (111, 112; 113, 114) at an angle (120) to one another. Battery cell (20) according to any one of the preceding claims, wherein the first housing part (23). - the first connection (101), - the second connection (102), or - The first connection (101) and the second connection (102) overlaps at least in sections with the first connection element (38) or with the second housing part (25). Battery cell (20) according to any one of the preceding claims, wherein - the first connection (101), - the second connection (102), or - The first connection (101) and the second connection (102) are designed as gas-tight connections. Battery cell (20) according to one of the preceding claims, in which the first housing part (23) has a first material, which first material is an electrically non-conductive material, in particular a ceramic material or a plastic. Battery cell (20) according to one of the preceding claims, in which the second housing part (25) is provided at least in sections on the fourth housing side (36). Battery cell (20) after claim 7 , In which the first housing part (23) at least partially forms the first housing side (33) and the fourth housing side (36). Battery cell (20) after claim 7 or 8th In which the first housing part (23) is connected to the second housing part (25) at least in sections on the fourth housing side (36). Battery cell (20) according to one of the preceding claims, in which the second housing part (25) extends at least in sections on the third housing side (35), on the fourth housing side (36), on the fifth housing side (31) and on the sixth housing side ( 32) extends. Battery cell (20) after claim 10 , In which the first housing part (23) at least partially on the third housing side (35), on the fourth housing side (36), on the fifth housing side (31) and on the sixth housing side (32) is connected to the second housing part (25). Battery cell (20) according to one of the preceding claims, in which the second housing part (25) has a second material, which second material is a metallic material. Battery cell (20) according to one of the preceding claims, in which the first material has at least one material from the first group of materials consisting of: - polyethylene, - polypropylene, - polyamide, - polyethylene terephthalate, - polybutylene terephthalate, - phenolic, - epoxy resins, - aluminum oxide, - aluminum nitride, - beryllium oxide, - zirconium(IV) oxide, - titanium(IV) oxide, - silicon carbide, - silicon nitride, - boron nitride, and - boron carbide. Battery cell (20) according to one of the preceding claims, in which the first housing part (23) consists of at least 50% of the first material, preferably at least 60%, more preferably at least 70%, more preferably at least 80% and particularly preferably at least 90%. Battery cell (20) according to one of the preceding claims, in which the at least one connection element (38, 39) comprises a second connection element (39), which second connection element (39) is provided on the second housing side (34) and is electrically connected to the second strip elements (56), which housing (30) comprises a third housing part (24), which third housing part (24) has a third material, and which third housing part (24) is connected to the second connection element (39) via a third connection (103 ) and is connected to the second housing part (25) via a fourth connection (104). Battery cell (20) after claim 15 , in which the third material is an electrically non-conductive material, in particular a ceramic material or a plastic. Battery cell (20) according to one of the preceding claims, in which the at least one connection element (38, 39) has copper or a copper alloy. A battery cell (20) according to any one of the preceding claims, wherein the first electrodes (61) are positive and the second electrodes (62) are negative, or vice versa.

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