Component assembly and contacting unit, method for the production thereof, and positioning unit

Abstract

A method for producing a component assembly which has a first component and a second component which are connected to one another via a connecting element, wherein the first component has a receiving section, an extension section and an intermediate section which connects the receiving section to the extension section, wherein the receiving section has a receiving section surface and the extension section has an extension section surface, and the second component has two mutually opposite surfaces and a recess delimited by a recess edge, wherein one of the components is moved relative to the other component in such a way that a distance decreases between the extension section surface of the first component and one of the two mutually opposite surfaces of the second component which faces the extension section surface, and the receiving section of the first component extends into the recess or through the recess, and the connecting element between the components is produced in such a way that the two components are fixed to one another by the connecting element.

Description

[0001] Component arrangement and contacting unit, method for their production and positioning unit

[0002] The present invention relates to a method for producing a component arrangement, which may be, for example, a contacting unit, a contacting unit and a positioning unit, wherein the positioning unit may be used in particular for producing a component arrangement, e.g., a contacting unit.

[0003] The document DE 102017200 390 A1 describes a method for producing an electrochemical cell, the method comprising the following: providing a housing component of a housing designed as a cover element for accommodating an electrochemical element; providing a connecting conductor for electrically connecting the electrochemical element to a cell terminal and / or an electrical contact element adjacent to the cell terminal, wherein the connecting conductor is formed from at least two connecting conductor components connected to one another in a connecting region; and applying a polymer material to and / or onto the connecting conductor and / or the cover element, wherein the application forms a fastening element for securing the connecting conductor to the cover element, which fastening element surrounds the connecting region.

[0004] Document EP 2 541 650 A1 describes a rechargeable battery comprising an electrode assembly in a housing; a cover plate coupled to an opening of the housing; and a rivet electrically connected to the electrode assembly. The rechargeable battery further comprises a seal and an insulating element. The rivet is electrically coupled to the electrode assembly via a current collector. The rechargeable battery also comprises terminal plates and insulating elements or connecting elements arranged between the terminal plates and the cover plate.

[0005] Document US 2015 / 0214516 A1 describes a battery comprising a casing having an electrode assembly therein; a first electrode unit having a first polarity, the first electrode unit having a first portion exposed to the outside of the casing and a second portion electrically coupled to the electrode assembly at a location inside the casing, the first and second portions being formed of different metal materials; and a resin sealing molding surrounding a connecting portion where the first and second portions are connected to each other.

[0006] Document WO 2021 / 140083 A1 describes an electrochemical cell. It comprises an electrochemical element for receiving, storing, and / or providing electrical energy; a housing for accommodating the electrochemical element, wherein the housing surrounds an interior of the electrochemical cell and comprises a cover element; a first cell terminal and a second cell terminal for connecting the electrochemical cell to a cell contact system; a first contact element connecting the first cell terminal to a first connecting conductor;and a second contact element which connects the second cell terminal to a second connecting conductor, wherein the first contact element is fixed to the cover element in a first connection region by means of a first potting element, wherein the first potting element is formed from a first polymer material which comprises or is formed from a first resin material and / or wherein the second contact element is fixed to the cover element in a second connection region by means of a second potting element, wherein the second potting element is formed from a second polymer material which comprises or is formed from a second resin material. Sealing elements are arranged between the cell terminals and the cover element. In addition, the cover element is connected to a plate-shaped insulating element on an inner side facing the interior.;

[0007] The invention is based on the object of providing a component arrangement, in particular a contacting unit, preferably for an energy storage unit for receiving, storing and / or providing electrical energy, which is of particularly simple construction and can be produced with particularly low expenditure.

[0008] This object is achieved by the method according to the related independent claim. The method is a method for producing a component arrangement comprising a first component and a second component that are connected to one another via a connecting element, wherein the first component has a receiving portion, an extending portion, and an intermediate portion connecting the receiving portion to the extending portion, wherein the receiving portion has a receiving portion surface and the extending portion has an extending portion surface, the second component has two opposing surfaces and a recess delimited by a recess edge, wherein one of the components is moved relative to the other component such thatthat a distance between the extension section surface of the first component and one of the two opposing surfaces of the second component facing the extension section surface is reduced; and the receiving section of the first component extends into the recess or through the recess; and the connecting element between the components is manufactured such that the two components are fixed to one another by the connecting element.

[0009] Preferably, the component arrangement can be, for example, a contacting unit, the first component can be, for example, a current-conducting element, and the second component can be, for example, a demarcation element.

[0010] The contact unit can be, for example, a wall unit, a housing unit and / or a cover unit.

[0011] The contacting unit may preferably be a contacting unit for an energy storage unit for receiving, storing and / or providing electrical energy.

[0012] The energy storage unit for receiving, storing, and / or providing electrical energy can, in particular, be a cylindrical energy storage unit for receiving, storing, and / or providing electrical energy, or a prismatic energy storage unit for receiving, storing, and / or providing electrical energy. It may be advantageous if the energy storage unit for receiving, storing, and / or providing electrical energy is, in particular, a cylindrical energy storage unit for receiving, storing, and / or providing electrical energy.

[0013] The term “in particular” is used in this description and the appended claims to describe optional features.

[0014] The cylindrical energy storage unit can in particular be a cylindrical energy storage cell, e.g. battery cell.

[0015] The prismatic energy storage unit may preferably be a prismatic energy storage cell, e.g., a battery cell.

[0016] The energy storage unit, energy storage cell and / or battery cell may preferably be rechargeable.

[0017] The current-conducting element can be a single-piece or multi-piece. For example, the current-conducting element can comprise a first current-conducting element section made of a first current-conducting material and a second current-conducting element section made of a second current-conducting material, wherein the two current-conducting element sections are electrically connected to one another.

[0018] For example, the receiving section can be constructed entirely or partially from one of the current conducting element sections and the extending section can be constructed entirely or partially from another of the current conducting element sections.

[0019] The demarcation element can preferably be flat and / or plate-shaped.

[0020] The boundary element can, for example, form a cover element and / or a wall element and / or a lid element of a housing for the energy storage unit. The boundary element can be a metallic boundary element. The boundary element can preferably be a metallic boundary element that contains an aluminum alloy and / or is formed from an aluminum alloy. The aluminum alloy can preferably be an aluminum-manganese alloy.

[0021] It may be advantageous if the demarcation element has a bursting element. The bursting element can, for example, have a bursting ridge. The bursting ridge can preferably extend completely or partially around a bursting surface. The thickness of the demarcation element can be reduced at the bursting ridge. The bursting ridge can form a predetermined breaking point at which the demarcation element can rupture in a controlled manner, for example, in the event of excess pressure developing in the interior of an electrochemical energy storage unit.

[0022] It may be advantageous if the second component, e.g. the boundary element, extends between the two surfaces completely or partially, preferably completely, around the recess.

[0023] It may be advantageous if the recess extends through the second component, e.g. through the boundary element, from one surface of the second component to the other surface of the second component.

[0024] For example, the boundary element may extend completely around the recess between the two opposing surfaces and the recess may extend through the boundary element from one surface of the boundary element to the other surface of the boundary element.

[0025] The recess can in particular be a passage opening which extends through the boundary element from one surface of the boundary element to the other surface of the boundary element.

[0026] In principle, one of the components, for example, the current-conducting element or the boundary element, can be moved relative to the other component, for example, relative to the boundary element or the current-conducting element, in any manner such that the distance between the extension section surface and the surface facing the extension section surface is reduced. It may be particularly advantageous if the current-conducting element and the boundary element are positioned on a positioning unit, for example, on a positioning unit according to the invention described herein.

[0027] It may be advantageous if the current-conducting element is positioned in a first positioning zone of the positioning unit and the boundary element is positioned in a second positioning zone of the positioning unit. For example, the distance between the surface of the extension section of the current-conducting element and the surface of the boundary element facing the extension section surface can be reduced if the current-conducting element is first positioned in the first positioning zone and, in a later method step, the boundary element is positioned in the second positioning zone.

[0028] Preferably, one of the components, for example, the current-conducting element or the boundary element, can be moved relative to the other component, for example, relative to the boundary element or the current-conducting element, such that the receiving portion of the first component, for example, the receiving portion of the current-conducting element, extends into or through the recess. For example, the receiving portion can extend into or through the recess when positioning the boundary element at the second positioning zone.

[0029] It may be advantageous if the connecting element between the components is manufactured in such a way that the two components are electrically insulated from one another by the connecting element or are connected with an electrical resistance which is preferably 0.1 ohm to 1000 ohms, in particular 0.2 ohms to 500 ohms, particularly preferably 0.5 ohms to 1000 ohms, e.g. 1 ohm to 50 ohms.

[0030] It may be advantageous if the connecting element between the components is manufactured in such a way that the two components do not abut one another and / or no direct electrically conductive connection is established from one component to the other. It may be advantageous if the connecting element between the components is manufactured in such a way that one section of the connecting element is arranged between the recess edge and the receiving section surface, and another connecting element section is arranged between the extension section surface of the first component and one of the two opposing surfaces of the second component that faces the extension section surface.

[0031] It can be advantageous if the connecting element is made of a flowable mass, which can be a casting compound, for example.

[0032] It may be advantageous if the flowable compound, e.g., the potting compound, is introduced into a cavity located between the two components. It may be advantageous if the shape of the cavity located between the two components is defined by the positioning of the first component, e.g., the current-conducting element, in the first positioning zone of the positioning unit and by the positioning of the second component, e.g., the boundary element, in the second positioning zone of the positioning unit.

[0033] It may be advantageous if a positioning unit, for example a positioning unit according to the invention described herein, positions the two components, e.g., the current-conducting element and the delimiting element, relative to one another in an arrangement desired for the component arrangement, e.g., for the contacting unit; and / or forms a barrier that delimits a cavity, in particular said cavity, in which the connecting element between the components is produced.

[0034] Preferably, the barrier may confine the cavity at one end of the extension section, wherein the end of the extension section may be an end of the extension section facing away from the intermediate section.

[0035] It may be advantageous if the cavity extends beyond the end of the extension section facing away from the intermediate section, for example into a spreading zone which extends beyond the end of the extension section facing away from the intermediate section.

[0036] It can be advantageous if the flowable mass, e.g. the casting compound, is introduced into the cavity and guided into the expansion zone.

[0037] The barrier may in particular be the barrier described herein in connection with the positioning unit according to the invention.

[0038] It may be advantageous if the component arrangement, e.g., the contacting unit, is removed from the positioning unit. Preferably, the component arrangement, e.g., the contacting unit, can be removed from the positioning unit after the connection element between the components has been manufactured.

[0039] It may be advantageous if, in a process step following the removal of the component assembly, e.g., the contacting unit, from the positioning unit, a further component assembly, which also comprises a first component and a second component connected to each other via a connecting element, is produced with the positioning unit. The component assemblies produced successively with the positioning unit can preferably be structurally identical.

[0040] It may be advantageous if the movement of one component relative to the other component takes place in such a way and the distance between the extension section surface of the first component and the surface of the second component which faces the extension section surface is reduced in such a way that a first component section of the second component is produced and a second component section of the second component is produced, wherein the first component section is a component section which is superimposed and / or overlapped by the extension section and the second component section is a component section which is not superimposed and / or overlapped by the extension section.

[0041] It may be advantageous if the surface of the second component which faces the extension section surface is a surface of the second component which is located on the first component section, wherein the connecting element is produced, for example by guiding and / or spreading the flowable mass on the second component, in such a way that the connecting element extends on the second component into the second component section.

[0042] By designing the barrier of the positioning unit described herein, it is readily possible to define the shape and size of an insulating zone of the connecting element, in which the connecting element extends on the second component into the second component section.

[0043] The problem is solved by the contacting unit according to the relevant independent claim.

[0044] The information provided in connection with the method according to the invention for the contacting unit can of course apply to the contacting unit according to the invention.

[0045] The contacting unit comprises the following: a current conducting element, a demarcation element and a connecting element, wherein the current conducting element and the demarcation element are connected to one another via the connecting element, the current conducting element has a receiving section, an extending section and an intermediate section connecting the receiving section to the extending section, wherein the receiving section has a receiving section surface and the extending section has an extending section surface, and the demarcation element has two opposite surfaces and a recess delimited by a recess edge.

[0046] It is advantageous if the demarcation element extends completely or partially around the recess between the two surfaces; and / or the recess extends through the demarcation element from one surface of the demarcation element to the other surface of the demarcation element.

[0047] It may be advantageous if a distance between the extension section surface of the current-conducting element and one of the two opposing surfaces of the boundary element, which faces the extension section surface, is so small that the receiving section of the current-conducting element extends into the recess or through the recess, preferably through the recess, and the current-conducting element and the boundary element are fixed to one another by means of the connecting element.

[0048] It may be advantageous if the receiving section and the extension section extend in different directions starting from the intermediate section.

[0049] It may be advantageous if the extension section is aligned parallel to a main extension plane of the contacting unit and / or the extension section extends along a main extension plane of the contacting unit.

[0050] It may be advantageous if the receiving section extends transversely to a main extension plane of the contacting unit.

[0051] It may be particularly advantageous if the extension section extends from the intermediate section along the main extension plane of the contacting unit and the receiving section extends from the intermediate section transversely to the main extension plane of the contacting unit.

[0052] It may be advantageous if the extension section extends from the intermediate section in several directions, for example, in opposite directions. For example, the extension section may extend all the way around the intermediate section.

[0053] In particular, if the contacting unit is a contacting unit for a cylindrical energy storage unit for receiving, storing and / or providing electrical energy, it may be advantageous if the extension section extends all around the intermediate section.

[0054] In particular, if the contacting unit is a contacting unit for a cylindrical energy storage unit for receiving, storing, and / or providing electrical energy, it may be advantageous if the contacting unit is round-disk-shaped and / or delimited by a circular, circumferential edge. This edge may, for example, be an edge on a boundary element edge section described herein. It may be advantageous if the contacting unit has a first connection surface, in which the connecting element is connected to the current-conducting element, and a second connection surface, in which the connecting element is connected to the boundary element, wherein the contacting unit can optionally have a further connecting element surface or a plurality of further connecting element surfaces, in which or in which the connecting element is not connected to the current-conducting element and also not to the boundary element.

[0055] The sum of the two connection surfaces can advantageously be at least 40%, preferably at least 50%, particularly preferably at least 60%, e.g. at least 70%, of a total surface of the connecting element.

[0056] The total surface of the connecting element can be calculated in particular by adding the first connection surface with the second connection surface and, if applicable, the optional connecting element surface or the optional connecting element surfaces.

[0057] It may be advantageous if the contacting unit has the component sections described herein, in particular in connection with the method. For example, a first component section of the second component can be a first delimiting element section of the delimiting element, and the second component section of the second component can be a second delimiting element section of the delimiting element. In particular, the first delimiting element section can then be a delimiting element section superimposed and / or overlapped by the extension section, and the second delimiting element section can be a delimiting element section not superimposed and / or overlapped by the extension section.

[0058] It may be advantageous if the surface of the demarcation element which faces the extension section surface is a surface of the demarcation element lying on the first demarcation element section.

[0059] Preferably, the connecting element can extend on the demarcation element into the second demarcation element section. The further the connecting element extends on the demarcation element into the second demarcation element section, the larger a second connection surface can be in which the connecting element is connected to the demarcation element. Since the second demarcation element section is not overlaid and / or overlapped by the extension section, the size of a further connecting element surface, which lies opposite the second demarcation element section on the connecting element and in which the connecting element is not connected to the current-conducting element or to the demarcation element, increases with the increasing size of the second demarcation element section.

[0060] Advantageously, the sum of the two connection surfaces can amount to at most 80%, preferably at most 70%, particularly preferably at most 60%, e.g. at most 50%, of a total surface of the connecting element.

[0061] It can be particularly advantageous if the sum of the two connection surfaces is 40% to 80%, advantageously 45% to 75%, particularly advantageously 50% to 75% of a total surface of the connecting element.

[0062] It may be advantageous if a further connecting element surface of the connecting element, which is opposite the second boundary element section, occupies at least 10%, preferably at least 20%, particularly preferably at least 25%, e.g. at least 30%, of a total surface of the connecting element. It may be advantageous if this connecting element surface occupies at most 50%, preferably at most 45%, particularly preferably at most 40%, e.g. at most 35%, of the total surface of the connecting element. For example, this connecting element surface can occupy 10% to 50%, preferably 20% to 45%, particularly preferably 25% to 40%, e.g. 25% to 35%, of a total surface of the connecting element.

[0063] It can be advantageous if the contact unit does not have an insulating element or has one or more insulating elements.

[0064] In particular, it may be advantageous if the contacting unit does not have an insulating element different from the connecting element or if it has one or more insulating elements different from the connecting element. If the contacting unit has an insulating element, at least one, preferably at least two, particularly preferably at least three of the following conditions (a) to (c) can be met:

[0065] (a) The volume occupied by the insulating element or the insulating elements as a whole amounts to at most 50%, preferably at most 40%, particularly preferably at most 30%, in particular at most 20%, e.g. at most 10%, of the volume occupied by the current-conducting element, the connecting element and the demarcation element, as well as, where appropriate, the further current-conducting element and, where appropriate, the further connecting element, together as a whole.

[0066] (b) no insulating element extends to a receiving portion of a current-conducting element,

[0067] (c) an insulating element extends on the boundary element along a boundary element portion which is not overlaid and / or overlapped by the extension portion.

[0068] The terms “insulating element” or “insulating elements” mentioned in conditions (a) to (c) preferably refer to an insulating element or insulating elements which are different from the connecting element.

[0069] Advantageously, condition (b) can be as follows:

[0070] (b) The demarcation element has the first demarcation element section, which is a demarcation element section superimposed and / or overlapped by the extension section, and the second demarcation element section, which is a demarcation element section not superimposed and / or overlapped by the extension section, wherein the connecting element is arranged on the demarcation element in the first demarcation element section and the second demarcation element section, wherein the demarcation element has a third demarcation element section, the second demarcation element section lies between the first demarcation element section and the third demarcation element section and no insulating element extends as far as a receiving section of the current-conducting element and an insulating element covers the demarcation element at least in a region of the third demarcation element section.

[0071] It may be advantageous if the connecting element has a connecting zone and an insulating zone, wherein the connecting zone is arranged on the demarcation element in the first demarcation element section and the insulating zone is arranged on the demarcation element in the second demarcation element section.

[0072] It may be advantageous if the demarcation element has a first demarcation element section and a second demarcation element section, wherein the first demarcation element section is superimposed and / or overlapped by the extension section and the second demarcation element section is not superimposed and / or overlapped by the extension section, wherein the connecting element has a connecting zone and an insulating zone, wherein the connecting zone is arranged on the first demarcation element section of the demarcation element and the insulating zone is arranged on the second demarcation element section of the demarcation element.

[0073] It may be advantageous if the isolation zone partially covers the second demarcation element section.

[0074] It can be advantageous if the isolation zone completely covers the second demarcation element section.

[0075] It may be advantageous if the second demarcation element section extends from the first demarcation element section to a demarcation element edge section and the insulating zone completely covers the second demarcation element section, wherein the demarcation element edge section can serve to connect the contacting unit to a housing unit, e.g. a container.

[0076] The housing unit, e.g., the container, can preferably be a housing unit, e.g., a container, of the energy storage unit. An interior space of the energy storage unit can extend from an edge of the housing unit, e.g., the container, into the housing unit, e.g., into the container. It can be advantageous if a superimposed and / or overlapped surface of the demarcation element, into which all demarcation element sections of the demarcation element superimposed and / or overlapped by one or more extension sections of one or more current-conducting elements enter, amounts to at most 90%, preferably at most 60%, e.g., at most 25%, of a surface of the demarcation element into which all demarcation element sections covered by connecting element material enter.

[0077] The term “connector material” refers to the material of the connecting element or elements if the contact unit has several connecting elements.

[0078] The invention is further based on the object of providing a positioning unit with which the method according to the invention can be carried out efficiently and / or with which a contacting unit according to the invention can be obtained with little effort.

[0079] The positioning unit can, in particular, be a positioning unit for producing a component arrangement, e.g., a contacting unit. The component arrangement can preferably be a component arrangement described herein. The contacting unit can preferably be a contacting unit described herein.

[0080] The positioning unit comprises: a first positioning zone for positioning a first component, which may be, for example, a current-conducting element, on the positioning unit, a second positioning zone for positioning a second component, which may be, for example, a delimiting element, on the positioning unit, and a barrier for a flowable mass located between the positioning zones.

[0081] The flowable mass can be, for example, a casting compound.

[0082] The flowable mass can be introduced between the components, for example, to produce the component arrangement, in particular to connect the components. The flowable mass can be introduced between the demarcation element and the current-conducting element, for example, to produce the contacting unit, in particular to connect the current-conducting element and the demarcation element.

[0083] The first positioning zone can be an inner positioning zone.

[0084] The second positioning zone can be an outer positioning zone.

[0085] The inner positioning zone can be located closer to a central area of ​​the positioning unit than the outer positioning zone.

[0086] The central area may be an area at least partially surrounded by at least one of the two positioning zones.

[0087] Preferably, the positioning unit

[0088] - have a non-stick material, e.g. a non-stick coating, at least on the barrier,

[0089] - have a mold release medium at least at the barrier, and / or contain a material or be formed wholly or partly from a material, wherein the material extends as far as the barrier and the material is selected from materials, e.g. wholly or partly fluorinated polymers, from which potting elements produced thereon from potting compound can be detached without destruction.

[0090] The connecting element, e.g., the potting element, can preferably contain or be formed from one or more of the following materials: epoxy resin material, phenolic resin material, aminoplast material, polyurethane material, silicone material, polyester resin material, ABS (acrylonitrile butadiene styrene) resin material. It can be advantageous if the flowable compound, e.g., the potting compound, contains or is formed from one or more of the following materials: epoxy resin, phenolic resin, aminoplast, polyurethane, silicone, polyester, ABS (acrylonitrile butadiene styrene), each in a flowable, molten, and / or uncured state.

[0091] Suitable non-stick coatings are known, for example, from EP 1242195 B1, EP 2308607 B1, EP 2599843 B1, EP 1670627 B1 and EP 2492022 B1.

[0092] Mold release media can also be referred to as mold release agents. They are known, for example, from EP 1216128 B1.

[0093] It may be advantageous if the first positioning zone has a first contact zone against which the first component, e.g. the current-conducting element, can be placed on the positioning unit, the second positioning zone has a second contact zone against which the second component, e.g. the delimiting element, can be placed on the positioning unit, wherein the positioning unit has a lateral delimiting element by means of which slipping of at least one of the components in at least one of the contact zones relative to the other contactable component can be limited or prevented.

[0094] It may be advantageous if the first positioning zone has a first lateral limiting element by which slipping of the first component at the first contact zone relative to the second component can be limited or prevented, and / or the second positioning zone has a second lateral limiting element by which slipping of the second component at the second contact zone relative to the first component can be limited or prevented.

[0095] It may be advantageous if the lateral limiting element, the first lateral limiting element, and / or the second lateral limiting element can each limit or prevent slippage of at least one component along a main extension plane of the positioning unit. The main extension plane described in connection with the positioning unit can, if the component arrangement or the contacting unit is positioned in the positioning unit, correspond to the main extension plane described in connection with the component arrangement or the contacting unit.

[0096] The main extension plane described in connection with the positioning unit can preferably be an additional plane in which the second contact zone is located.

[0097] The first positioning zone can preferably be a ring-shaped, circumferential first positioning zone. The second positioning zone can preferably be a ring-shaped, circumferential second positioning zone.

[0098] The barrier may preferably be an annular barrier.

[0099] It may be advantageous if the barrier is concave and / or recessed. For example, the barrier may have an annular recess extending around the entire perimeter. A surface of the positioning unit forming the barrier may be concave along the perimeter of the annular barrier.

[0100] It may be advantageous if the barrier has a sloping barrier section, in particular a barrier section sloping from the second installation zone.

[0101] It can be advantageous if the sloping barrier section is a sloping barrier section.

[0102] The barrier section can slope down in particular transversely to a direction of extension of the barrier, wherein the direction of extension of the barrier can be a direction along which the barrier runs in a ring shape.

[0103] It may be advantageous if the barrier has a non-sloping barrier section and / or a sloping barrier section.

[0104] For example, the barrier can have a more outwardly sloping barrier section and a more inwardly sloping or less steeply sloping barrier section. For example, the annular barrier can extend around a central region of the positioning unit, and the more outwardly sloping barrier section can be spaced further from the central region than the more inwardly sloping barrier section. It can be advantageous if the first positioning zone is closer to the central region than the second positioning zone.

[0105] The terms “sloping”, “sloping” and “non-sloping” may refer in particular to the main extension plane of the positioning unit.

[0106] Of course, features described in connection with an inventive subject matter can also form features of another inventive subject matter described herein. Subject matters according to the invention include, in particular, the method for producing a component arrangement, the contacting unit, and the positioning unit.

[0107] Further preferred features and / or advantages of the invention are the subject of the following description and the drawings of exemplary embodiments.

[0108] The drawings show:

[0109] Fig. 1 : a schematic representation of an energy storage unit;

[0110] Fig. 2: a schematic perspective view of a cylindrical

[0111] energy storage unit;

[0112] Fig. 3: a schematic perspective view of a prismatic

[0113] energy storage unit;

[0114] Fig. 4: a schematic representation of the process of an inventive

[0115] procedure;

[0116] Fig. 5: a section through a component arrangement positioned in a positioning unit; Fig. 6: an enlarged detail from Fig. 5;

[0117] Fig. 7: a section through a component arrangement positioned in a positioning unit;

[0118] Fig. 8: an enlarged section of Fig. 7;

[0119] Fig. 9: a section through a component arrangement positioned in a positioning unit;

[0120] Fig. 10: an enlarged section of Fig. 9;

[0121] Fig. 11 : a section through a component arrangement positioned in a positioning unit;

[0122] Fig. 12: a section from Fig. 11;

[0123] Fig. 13: a section through a component arrangement positioned in a positioning unit;

[0124] Fig. 14: an enlarged section of Fig. 13;

[0125] Fig. 15: a section through a component arrangement positioned in a positioning unit;

[0126] Fig. 16: an enlarged section of Fig. 15;

[0127] Fig. 17: a schematic perspective view of a positioning unit;

[0128] Fig. 18: another schematic perspective view of another

[0129] positioning unit;

[0130] Fig. 19: a schematic view of a contact unit and

[0131] Fig. 20: Another schematic view of another contact unit. Identical or functionally equivalent elements are provided with the same reference numerals in all figures.

[0132] Fig. 1 shows a schematic representation of an energy storage unit 148. The energy storage unit 148 is a prismatic energy storage unit 150. It is a prismatic battery cell 152.

[0133] The energy storage unit 148 includes an electrochemical element 166. The electrochemical element 166 is arranged in an interior space 178. The interior space 178 is located in a housing 160 of the energy storage unit.

[0134] The housing 160 has a housing unit 162. The housing unit 162 is a container 174 into which the interior space 178 extends.

[0135] The housing 160 also has a cover unit 176. The cover unit 176 is a component assembly 100 or has a component assembly 100.

[0136] The cover unit 176 is a housing unit 156. The two housing units 156 and 162 together form the housing 160 of the energy storage unit 148.

[0137] A connecting conductor 164 and a further connecting conductor 165 extend from the electrochemical unit 166. The connecting conductor 164 is electrically connected to a first component 102, which is a current-conducting element 110. The further connecting conductor 165 is electrically connected to a third component 158, which is a further current-conducting element 111.

[0138] The current-conducting element 110 is electrically connected to a cell terminal 170, which is arranged externally on a surface of the energy storage unit 148. The further current-conducting element 111 is electrically connected to a further cell terminal 171, which is arranged externally on a surface of the energy storage unit 148.

[0139] In the energy storage unit 148 schematically illustrated in Fig. 1, the component arrangement simultaneously forms a contacting unit 108 through which the two current-conducting elements 110 and 111 are guided. The component arrangement 100 simultaneously forms a wall unit 154, which is a component of the housing 160.

[0140] The contacting unit 108 comprises a demarcation element 112, the current conducting element 110 and the further current conducting element 111 as well as an insulating element 168.

[0141] The contacting unit 108 also comprises a connecting element 106. The connecting element 106 is a potting element 136. It connects the following components of the contacting unit to each other: cell terminal 170, current conducting element 110, boundary element 112, insulating element 168. The sealing element 172 surrounds the connecting element

[0142] 106 is annular between the cell terminal 170 and the boundary element 112. The connecting element 106 is separated from the interior space 178 by the insulating element 168.

[0143] The contacting unit 108 also comprises a further connecting element 107. The further connecting element 107 is a further potting element 137. The further connecting element 107 connects the following components of the contacting unit 108: the further cell terminal 171, the further current conducting element 111, the demarcation element 112 and the insulating element 168. Between the further cell terminal 171 and the demarcation element 112, a further sealing element 173 extends around the further connecting element 107. Towards the interior space 178, the further connecting element

[0144] 107 is separated by the insulating element 168.

[0145] The contacting unit 108 also comprises a bursting element 167, which may, for example, have a thin bursting web embossed into the boundary element 112.

[0146] The contact unit 108 also includes an electrolyte filling opening 180.

[0147] Figures 2 and 3 show energy storage units 148 in perspective views, with only a portion of the illustrated energy storage units 148 being shown in each of the two figures. Figure 2 shows an energy storage unit 148 that is a cylindrical energy storage unit 182. The cylindrical energy storage unit 182 is a cylindrical battery cell 184.

[0148] The energy storage unit shown in Fig. 3 is a prismatic energy storage unit 150. The prismatic energy storage unit 150 is a prismatic battery cell 152.

[0149] The two energy storage units 148 shown in Figs. 2 and 3 each have component assemblies 100 on their sides facing upwards in both figures. The two component assemblies 100 are contact units 108. The two contact units 108 are simultaneously wall units 154, housing units 156, and cover units 176 of the energy storage units 148 shown in the two figures.

[0150] The component arrangement 100 shown in Fig. 2 comprises a first component 102 and a second component 104. The first component 102 is a current-conducting element 110. The second component 104 is a demarcation element 112. The contacting unit shown in Fig. 2 thus comprises a current-conducting element 110 and a demarcation element 112.

[0151] The component arrangement 100 shown in Fig. 2 also comprises a connecting element 106. The connecting element 106 is a potting element 136. The connecting element 106 connects the first component 102 to the second component 104. A region of the connecting element 106 visible in Fig. 2 extends in a ring shape around a region of the first component 102 shown in Fig. 2. The two components 102 and 104 are mechanically connected to one another by the connecting element 106 and at the same time electrically insulated from one another.

[0152] While the component arrangement of the cylindrical energy storage unit 182 shown in Fig. 2 is round, the component arrangement 100 of the prismatic energy storage unit 150 shown in Fig. 3 is rectangular.

[0153] The component arrangement 100 shown in Fig. 3 is also a contacting unit 108. The contacting unit 108 is a wall unit 154, a housing unit 156 and a cover unit 176. The component arrangement 100 shown in Fig. 3, like the component arrangement 100 shown in Fig. 2, comprises a first component 102 and a second component 104. The first component 102 is a current-conducting element 110. The second component 104 is a boundary element 112. A connecting element 106 is arranged between the first component and the second component essentially as shown in Fig. 2 and described with regard to Fig. 2. The connecting element 106 extends between the first component 102 and the second component 104. It mechanically connects the two components 102 and 104 and electrically insulates the two components from each other.

[0154] In contrast to the component arrangement 100 shown in Fig. 2, the component arrangement shown in Fig. 3 comprises a third component 158. The third component 158 ​​is a further current-conducting element 111.

[0155] Figs. 2 and 3 indicate that the sectional views shown in the following Figs. 4 to 16 can each equally refer to the cylindrical design shown in Fig. 2 or to the prismatic design shown in Fig. 3. The sections underlying Figs. 4 to 16 are each executed in the cutting directions indicated by Roman numerals in Figs. 2 and 3.

[0156] Fig. 17 shows a simplified schematic representation of a positioning unit 142 which, when carrying out the method outlined in Fig. 4, is suitable for producing a component arrangement 100 for a cylindrical energy storage unit 182 shown in Fig. 2.

[0157] Figure 18 shows a positioning unit 142 which is suitable for producing a component arrangement 100 of a prismatic energy storage unit 150 shown in Fig. 3.

[0158] 5, 7, 9, 11, 13, and 15 show component assemblies 100. The component assemblies 100 are each arranged in a positioning unit 142, which is suitable for producing the respective component assembly 100 shown. During production, the positioning units 142 are used to position the first component 102 and the second component 104 in the positions desired for the respective component assembly 100. The positioning units 142 can serve as connecting units 186, since the respective connecting element 106 can be produced, for example, from a flowable mass 139, for example a potting compound 134, between the components 102 and 104 positioned in the desired positions at the respective positioning unit 142.

[0159] The first component 102 shown in Fig. 5, 7, 9, 11, 13 and 15 is a current-conducting element 110. The second component 104 shown in these figures is a demarcation element 112. The component arrangements 100 shown in these figures are contacting units 108. The contacting units 108 can be used on energy storage units 148, for example, simultaneously as a wall unit 154, a housing unit 156 and a cover unit 176. Fig. 5, 7, 9, 11, 13 and 15 each show a contacting unit which has a current-conducting element 110, a demarcation element 112 and a connecting element 106, wherein the current-conducting element 110 and the demarcation element 112 are connected to one another via the connecting element 106.

[0160] Each of the current-conducting elements illustrated in Figures 5, 7, 9, 11, 13, and 15 has a receiving portion 114, an extending portion 116, and an intermediate portion 118 connecting the receiving portion to the extending portion. The respective receiving portion 114 has a receiving portion surface 120. The respective extending portion 116 has an extending portion surface 122. The boundary elements illustrated in these figures have two opposing surfaces 124 and 126. They also each have a recess 130 defined by a recess edge 128.

[0161] The boundary element 112 extends between the two surfaces 124 and 126 around the recess 130.

[0162] The respective recess 130 extends through the boundary element 112 from one surface 126 to the other surface 124 of the boundary element 112.

[0163] From Figs. 5, 7, 9, 11, 13 and 15 it is clearly evident that a distance 188 between the respective extension section surface 122 of the current conducting element 110 and the surface 126, which is one of the two opposing surfaces 126 and 124 of the boundary element, which faces the extension section surface 122, is so small that the respective receiving section 114 of the current conducting element 110 extends through the recess 130 of the contacting unit 108 shown in the respective Fig.

[0164] The respective current-conducting element 110 and the respective demarcation element 112 are fixed to one another by means of the respective connecting element 106.

[0165] The contacting units 108 shown in Figs. 5, 7, 9, 11, 13, and 15 each have a first connection surface 190 in which the connecting element 106 is connected to the current-conducting element 110. The first connection surface 190 is highlighted as an example in Fig. 9.

[0166] The contacting units 108 shown in Figs. 5, 7, 9, 11, 13, and 15 have a second connection surface 192 in which the connecting element 106 is connected to the demarcation element 112. The second connection surface 192 is highlighted as an example in Fig. 7.

[0167] The contacting units illustrated in Figs. 5, 7, 9, 11, 13, and 15 each have two further connecting element surfaces 194 and 196. In the further connecting element surfaces, the connecting element 106 is neither connected to the current-conducting element 110 nor to the boundary element 112. One connecting element surface 194 of the two further connecting element surfaces 194 and 196 is highlighted as an example in Fig. 11. One connecting element surface 196 of the two connecting element surfaces 194 and 196 is highlighted as an example in Fig. 13.

[0168] In Fig. 15, the first connection surface 190 and the second connection surface 192 are highlighted as examples. Additionally, the two other connecting element surfaces 194 and 196 are also highlighted there.

[0169] In the case of the contacting units 108 shown in Figs. 5, 7, 9, 11, 13 and 15, it can already be guessed from the sections shown that the two connection surfaces 190 and 192 together make up a large part of a total surface 198 of the connecting element 106. If the contacting units 108 shown in section there are round contacting units 108 for a cylindrical energy storage unit 182 shown schematically in Fig. 2, the two connection surfaces 190 and 192 as well as the two further connecting element surfaces 194 and 196 can be calculated from Figs. 5, 7, 9, 11, 13 and 15. With little effort, the sum of the two connection surfaces 190 and 192 and also the total surface 198 can then be calculated from this. Of course, the same sizes can also be used for contact units 108 for prismatic energy storage units 150, which are shown in Fig.3 are illustrated as examples.

[0170] Fig. 6 shows an enlarged section of Fig. 5. Figs. 8, 10, 12, 14 and 16 show corresponding sections of the previous figure.

[0171] Figs. 6, 8, 10, 12, 14 and 16 are intended to schematically show possibilities of providing the contact units shown therein without any insulating element or with particularly small insulating elements 168.

[0172] It may be particularly advantageous if a contacting unit 108 does not have an insulating element 168 (Fig. 14 and Fig. 16) or has one or more relatively small insulating elements 168 (Fig. 6, 8, 10, 12). Figs. 6, 8, 10, and 12 show indicated insulating elements 168. The insulating elements 168 can only be arranged at the locations indicated therein once the contacting units 108 have been removed from the respective positioning unit 142.

[0173] Advantageously, the contact units 108 shown in Figs. 5 to 12 can each be provided entirely without an insulating element. The indicated insulating elements 168 are optional in each case.

[0174] However, the insulating elements indicated therein are particularly small. In contrast to the contacting unit 108 shown in Fig. 1, insulating elements 168 in Figs. 5 to 12 are optionally provided only at the edge, whereas the insulating element 168 shown in Fig. 1 extends essentially over the entire surface of the contacting unit 108 shown therein. It can be seen from Figs. 5 to 12 that the total volume occupied by the insulating element indicated therein occupies at most, for example, approximately 15% of the volume occupied by the current-conducting element 110, the connecting element 106, and the delimiting element 112 together. The insulating elements 168 shown therein also do not extend to the receiving sections 114 of the current-conducting elements 110 shown therein.

[0175] 6, 8, 10 and 12 show that the insulating element 168 shown therein extends along the surface 126 of the boundary element 112 which faces the extension section surface 122, wherein the respective insulating element 168 extends along a region 202 of the surface 126 which is offset along the surface 126 from a region 200 of the surface 126 which faces the extension section surface 122.

[0176] It may be particularly advantageous in connection with the invention if contacting units 108 are designed such that the need to attach an insulating element 168 is eliminated. Advantageously, the connecting element 106 can extend further along the surface 126, in particular into a region 202 that is not opposite the extension section surface 122 (Fig. 14 and Fig. 16).

[0177] Figure 4 illustrates a method for manufacturing a component assembly 100 comprising a first component 102 and a second component 104. The components 102 and 104 are connected to each other via a connecting element 106.

[0178] The component arrangement 100 is a contacting unit 108. The first component 102 is a current-conducting element 110. The second component 104 is a demarcation element 112.

[0179] Fig. 4 clearly shows that the first component 102, i.e., the current-conducting element 110, has a receiving section 114, an extending section 116, and an intermediate section 118 connecting the receiving section 114 to the extending section 116, wherein the receiving section 114 has a receiving section surface 120 and the extending section 116 has an extending section surface 122. Fig. 4 also shows that the second component 104, i.e., the boundary element 112, has two opposing surfaces 124 and 126 and a recess 130 delimited by a recess edge 128.

[0180] The second component 104 extends between the two surfaces 124 and 126 around the recess 130. The recess 130 extends through the second component 104, from one surface 124 to the other surface 126.

[0181] The four diagrams in Fig. 4, connected to one another and with arrows, schematically show the sequence of the method for producing a component arrangement 100. One of the components 102, 104 is moved relative to the other component 102, 104 such that a distance 132 between the extension section surface 122 of the first component 102 and one of the two opposing surfaces 124 and 126 of the second component 104, which faces the extension section surface 122, is reduced. One of the components 102, 104 is moved relative to the other component 102, 104 such that the receiving section 114 of the first component 102 extends through the recess 130.

[0182] Subsequently, the connecting element 106 is manufactured from a potting compound 134 between the components 102 and 104 such that the two components 102 and 104 are secured to one another by the connecting element 106. In the example shown here, the connecting element 106 is a potting element 136.

[0183] The receiving portion 114 is a feedthrough portion 138. It extends through the recess 130.

[0184] In the method illustrated in Fig. 4, the connecting element 106 between the components 102 and 104 is manufactured such that the two components 102 and 104 are electrically insulated from each other by the connecting element 106.

[0185] Commercially available 134 casting compounds are based on electrically insulating plastics or resins.

[0186] It would also be possible to manufacture the connecting element between the components in such a way that the two components 102 and 104 are connected by the connecting element 106 with an electrical resistance that can preferably be between 0.1 ohms and 1000 ohms. If electrically conductive additives are added to a potting compound 134, a desired electrical resistance can be achieved with minimal experimental effort.

[0187] In the example of a method for producing a component arrangement 100 shown in Fig. 4, the connecting element 106 is produced from a flowable mass 139, which is a potting compound 134.

[0188] Fig. 4 shows in the bottom illustration how the flowable mass 139, i.e. the potting compound 134, is introduced into a cavity 140 adjacent to the two components 102 and 104.

[0189] The indicated vessel, from which the flowable mass 139 flows into the cavity 140, is for illustrative purposes only. Of course, the flowable mass 139 could be fed into the cavity 140 in an industrial plant for carrying out the process, for example, from a feed opening, such as a nozzle.

[0190] In the method illustrated in Fig. 4, a positioning unit 142 according to the invention is used. The positioning unit 142 holds the two components 102 and 104 relative to each other in an arrangement 144 desired for the component arrangement 100. It also forms a barrier 146 that delimits the cavity 140 in which the connecting element 106 is produced between the components 102 and 104.

[0191] In Fig. 4, the bottom view shows a first component section 204 of the second component 104 and a second component section 206 of the second component 104. The first component section 204 is a component section overlaid and / or overlapped by the extension section 116. The second component section 206 is a component section not overlaid and / or overlapped by the extension section 116.

[0192] The surface 126 of the second component 104, which faces the extension section surface 122, is a surface of the second component 104 lying on the first component section 204. It can also be clearly seen from Fig. 4 that the connecting element 106 can be produced, for example by guiding and / or spreading the flowable mass 139 on the second component 104, such that the connecting element 106 on the second component 104 does not extend into the second component section 206.

[0193] However, it may be particularly advantageous in connection with the invention if the connecting element 106 is produced, for example by guiding and / or spreading the flowable mass 139 on the second component 104, in such a way that the connecting element 106 extends on the second component 104 into the second component section 206.

[0194] This possibility is illustrated in Figs. 7 to 16 for the component arrangements 100 and contact units 108 shown there.

[0195] From a view of Figs. 4 to 16 together, it is clear to those skilled in the art that a cavity extension recess 212 can be provided on a positioning unit 142. The cavity extension recess 212 can serve, in particular, to form a cavity 140, which extends into the cavity extension recess 212, after the positioning of the first component 102 and the second component 104 at the designated positions of the positioning unit 142. During the production of the connecting element 106, a flowable mass 139 can then extend, for example, within the cavity 140 into the cavity extension recess 212 or can be spread out or guided into the cavity extension recess 212, so that the resulting connecting element 106 extends on the second component 104 not only into the first component section 204, but also into the second component section 206.

[0196] It may be advantageous if the cavity 146 extends beyond the end of the extension section 116 facing away from the intermediate section 118, for example, into a spreading zone 234 that extends beyond the end of the extension section 116 facing away from the intermediate section 118. It may be advantageous if the flowable mass 139, e.g., the potting compound 134, is introduced into the cavity 140 and guided therein into the spreading zone 234.

[0197] In particular, a connecting element 106 formed in this way can have a connecting zone 208 and an insulating zone 210, wherein the connecting zone 208 extends on the second component 104 into the first component section and the insulating zone 210 extends on the second component 104 into the second component section 206.

[0198] The component arrangements 100 shown in Figs. 5 to 16 are each contacting units 108. The first component 102 is the current-conducting element 110. The second component 104 is the demarcation element 112. The first component section 204 is a first demarcation element section 214. The second component section 206 is a second demarcation element section 216.

[0199] 7, 9, 11, 13 and 15 clearly show that in the contacting units 108 shown therein, the delimiting element 112 has a first delimiting element section 214 and a second delimiting element section 216, wherein the first delimiting element section 214 is overlaid and / or overlapped by the extension section 116 and the second delimiting element section 216 is not overlaid and / or overlapped by the extension section 116. The connecting elements 106 shown therein each have a connecting zone 208 and an insulating zone 210, wherein the connecting zone 208 is arranged on the first delimiting element section 214 of the delimiting element 112 and the insulating zone 210 is arranged on the second delimiting element section 216 of the delimiting element 112.

[0200] It may be particularly advantageous if a superimposed and / or overlapped surface 218 of the demarcation element, into which all demarcation element sections 214 of the demarcation element 112 that are superimposed and / or overlapped by one or more extension sections 116 of one or more current-conducting elements 110, 111 enter, amounts to at most 90% of a surface 220 of the demarcation element 112, into which all demarcation element sections 214 and 216 that are covered by connecting element material enter. Examples of this are shown schematically in Figs. 19 and 20.

[0201] Fig. 19 shows a contacting unit 108 for a cylindrical energy storage unit 182 in a schematic representation.

[0202] Fig. 20 shows a contacting unit 108 for a prismatic energy storage unit 150 in a schematic representation.

[0203] In Figs. 19 and 20, the inner surfaces of the two contacting units 108, which, when installed on the respective energy storage unit, face the interior of the energy storage unit, are each facing the viewer.

[0204] In Fig. 19, only a single demarcation element section, which is covered by the connecting element material, extends into the surface of the demarcation element. This section is delimited inwardly by the dash-dotted line and outwardly by the dashed line. This also applies accordingly in Fig. 20 to the surface of the demarcation element, which includes all demarcation element sections covered by the connecting element material. Here, however, two recesses 130 are provided, indicated by the dash-dotted lines.

[0205] The boundary element sections 214 overlapped by extension sections 116, which are relevant for determining the superimposed and / or overlapped area 218, are shown hatched in Figs. 19 and 20.

[0206] The six different positioning units 142 shown in Figs. 5 to 16 each comprise the following:

[0207] A first positioning zone 222 for positioning a first component 102, which may be, for example, a current-conducting element 110, on the respective positioning unit 142; a second positioning zone 224 for positioning a second component 104, which may be, for example, a delimiting element 112, on the respective positioning unit 142; and a barrier 146 for the flowable mass 139, located between the respective positioning zones 222 and 224. The flowable mass 139 may, for example, be a potting compound 134. The flowable mass 139 can be introduced between the components 102 and 104 in order to produce a component arrangement 100, in particular to connect the components 102 and 104.

[0208] The first positioning zone 222 is an inner positioning zone 223.

[0209] The second positioning zone 224 is an outer positioning zone 225.

[0210] In particular, during the introduction of the flowable mass 139, the barrier 146 can limit a spread of the flowable mass 139 between the components 102 and 104.

[0211] In the six positioning units 142 shown in Figs. 5 to 16, the first positioning zone 222 each has a first contact zone 226, against which the first component 102, for example the current-conducting element 110, can be placed on the respective positioning unit 142.

[0212] In the positioning units 142 shown in Figs. 5 to 16, the second positioning zone 224 has a second contact zone 228, against which the second component 104, for example the delimiting element 112, can be placed on the respective positioning unit 142.

[0213] In the positioning units 142 shown in Figs. 5 to 16, the first positioning zone 222 in each case has a first lateral limiting element 230, by means of which slipping of the first component 102 at the first contact zone 226 relative to the second component 104 can be limited or prevented.

[0214] In the positioning units 142 shown in Figs. 5 to 16, the second positioning zone 224 each has a second lateral limiting element 232, by which slippage of the second component 104 at the second contact zone 228 relative to the first component 102 can be limited or prevented. The positioning units shown in Figs. 5 to 16 can each have a non-stick coating 240 on the barriers 146 shown in Figs. 6, 8, 10, 12, 14, and 16.

[0215] This can in particular contribute to the fact that the component arrangement 100, e.g. the contacting unit 108, can be removed more easily from the positioning unit 142 after its manufacture on the positioning unit 142, because a potting element 136 made of a flowable mass 139, which extends up to the barrier 146, then does not adhere or adheres less firmly to the barrier 146.

[0216] In the positioning units 142 shown in Figs. 13 to 16, the barrier is concave and recessed.

[0217] The positioning units 142 shown in Figs. 5, 6, 9, 10, 11, 12, 13, 14, 15, and 16 each have a barrier section 236 sloping from the second contact zone 228. The sloping barrier section 236 can slope vertically (Figs. 5, 6, and 13 to 16) or diagonally (Figs. 9 to 12).

[0218] In the positioning unit of Figs. 7 and 8 and in the positioning unit of Figs. 15 and 16, the barrier each has a non-sloping barrier section 238. In the positioning units according to Figs. 9, 10, 11, 12, and 13 and 14, the barrier 146 each has a sloping barrier section 236. It is immediately obvious that this opens up the possibility of directly producing an insulating zone 210 from a flowable mass 139 used to produce the connecting element 106, which extends into a region of the demarcation element 112 that does not overlap with the current-conducting element 110.

[0219] The terms "sloping," "sloping at an angle," and "not sloping" each refer to the main extension plane 242 of the positioning unit 142. The main extension plane 242 is an imaginary plane in which the second contact zone 228 is located. In Figs. 6, 8, 10, 12, 14, and 16, the main extension plane 242 is perpendicular to the section plane. Therefore, the main extension plane 242 is indicated there merely as a line.

[0220] The barrier section 236 can slope downwards, in particular transversely to an extension direction 244 of the barrier 146, wherein the extension direction 244 of the barrier 146 can be a direction along which the barrier 146 extends in a ring-shaped manner. The extension direction 244 and its annular course are indicated in Fig. 17.

[0221] List of reference symbols

[0222] Component arrangement first component second component

[0223] Connecting element additional connecting element contact unit

[0224] Current conducting element additional current conducting element

[0225] demarcation element

[0226] Recording section

[0227] Extension section

[0228] Intermediate section

[0229] Recording section surface

[0230] Extension section surface, 126 surface

[0231] Recess edge

[0232] recess

[0233] Distance

[0234] Potting compound

[0235] Casting element additional casting element feed-through section flowable mass

[0236] cavity

[0237] Positioning unit

[0238] arrangement

[0239] barrier

[0240] Energy storage unit prismatic Energy storage unit prismatic battery cell

[0241] Wall unit Housing unit third component

[0242] Housing

[0243] Housing unit

[0244] Connecting conductor additional connecting conductor electrochemical element bursting element insulating element

[0245] Cell terminal another cell terminal

[0246] Sealing element additional sealing element

[0247] container

[0248] Lid unit

[0249] Interior

[0250] Electrolyte filling opening cylindrical energy storage unit cylindrical battery cell connection unit

[0251] Distance first connection surface second connection surface , 196 further connecting element surface

[0252] Total surface of the connecting element, 202 Area of ​​the surface first component section second component section

[0253] Connection zone

[0254] Isolation zone

[0255] Cavity expansion recess first boundary element section second boundary element section superimposed and / or overlapped surface surface first positioning zone inner positioning zone second positioning zone outer positioning zone first contact zone second contact zone first lateral boundary element second lateral boundary element

[0256] Dispersion zone sloping barrier section non-sloping barrier section

[0257] Non-stick coating

[0258] Main extension level

[0259] Direction of extension

Claims

Patent claims 1. Method for producing a component arrangement (100) which has a first component (102) and a second component (104) which are connected to one another via a connecting element (106), wherein the component arrangement (100) can be, for example, a contacting unit (108), the first component (102) can be, for example, a current-conducting element (110) and the second component (104) can be, for example, B. can be a demarcation element (112), wherein the first component (102) has a receiving section (114), an extension section (116) and an intermediate section (118) connecting the receiving section (114) to the extension section (116), wherein the receiving section (114) has a receiving section surface (120) and the extension section (116) has an extension section surface (122), the second component (104) has two opposing surfaces (124, 126) and a recess (130) delimited by a recess edge (128),wherein it is advantageous if the second component (104) extends between the two surfaces (124, 126) completely or partially around the recess (130); and / or the recess (130) extends through the second component (104) from one surface (124, 126) of the second component (104) to the other surface (124, 126) of the second component (104), wherein one of the components (102, 104) is moved relative to the other component (102, 104) such that a distance (132) between the extension section surface (122) of the first component (102) and one of the two opposing surfaces (124, 126) of the second component (104) facing the extension section surface (122) is reduced; and the receiving portion (114) of the first component (102) extends into the recess (130) or through the recess (130); and the connecting element (106) between the components (102, 104) is manufactured such that the two components (102, 104) are fixed to one another by the connecting element (106).

2. Method according to claim 1, characterized in that the connecting element (106) between the components (102, 104) is produced in such a way that the two components (102, 104) are electrically insulated from one another by the connecting element (106) or are connected with an electrical resistance which is preferably 0.1 ohm to 1000 ohms, in particular 0.2 ohms to 500 ohms, particularly preferably 0.5 ohms to 100 ohms, e.g. 1 ohm to 50 ohms.

3. Method according to claim 1 or 2, characterized in that the connecting element (106) is produced from a flowable mass (139), which can be, for example, a casting compound (134).

4. Method according to one of claims 1 to 3, characterized in that a positioning unit (142), for example the positioning unit (142) according to one of claims 13 to 18, positions the two components (102, 104) relative to one another in an arrangement desired for the component arrangement (100); and / or forms a barrier (146) which delimits a cavity (140) in which the connecting element (106) between the components (102, 104) is produced.

5. Method according to claim 4, characterized in that the component arrangement (100), e.g. the contacting unit (108), is removed from the positioning unit (142).

6. Method according to one of the preceding claims, characterized in that the movement of the one component (102, 104) relative to the other component (102, 104) takes place in such a way and the distance (132) between the extension section surface (122) of the first component (102) and the surface (124, 126) of the second component (104) which faces the extension section surface (122) is reduced in such a way that a first component section (204) of the second component (104) results and a second component section (206) of the second component (104) results, wherein the first component section (204) is a component section which is superimposed and / or overlapped by the extension section (116) and the second component section (206) is a component section which is not superimposed and / or non-overlapped component section, wherein it may be advantageous if the surface (124, 126) of the second component (104),which faces the extension section surface (122), is a surface (124, 126) of the second component (104) lying on the first component section (204), wherein the connecting element (106) is produced, for example by guiding and / or spreading the flowable mass (139) on the second component (104), such that the connecting element (106) extends on the second component (104) into the second component section (206).

7. Contacting unit (108), preferably for an energy storage unit (148) for receiving, storing and / or providing electrical energy, wherein the contacting unit (108) can be, for example, a wall unit (154), a housing unit (156, 162) and / or a cover unit (176), preferably a wall unit (154), a housing unit (156, 162) and / or a cover unit (176) for the energy storage unit (148), wherein the contacting unit (108) has the following: a current conducting element (110),a demarcation element (112) and a connecting element (106), wherein the current-conducting element (110) and the demarcation element (112) are connected to one another via the connecting element (106), the current-conducting element (110) has a receiving section (114), an extending section (116) and an intermediate section (118) connecting the receiving section (114) to the extending section (116), wherein the receiving section (114) has a receiving section surface (120) and the extending section (116) has an extending section surface (122), and the demarcation element (112) has two mutually opposite surfaces (124, 126) and a recess (130) delimited by a recess edge (128), wherein it is advantageous if the demarcation element (112) is located wholly or partially between the two surfaces (124, 126). extends around the recess (130);and / or the recess (130) extends through the boundary element (112) from one surface (124, 126) of the boundary element (112) to the other surface (124, 126) of the boundary element (112); 8. Contacting unit (108) according to claim 7, characterized in that a distance (132) between the extension section surface (122) of the current-conducting element (110) and one of the two mutually opposite surfaces (124, 126) of the boundary element (112), which faces the extension section surface (122), is so small that the receiving section (114) of the current-conducting element (110) extends into the recess (130) or through the recess (130), and the current-conducting element (110) and the boundary element (112) are fixed to one another by means of the connecting element (106).

9. Contacting unit (108) according to claim 7 or 8, characterized in that the contacting unit (108) has the following: a first connection surface (190), in which the connecting element (106) is connected to the current-conducting element (110), and a second connection surface (192), in which the connecting element (106) is connected to the demarcation element (112), wherein the contacting unit (108) can optionally have the following: a further connecting element surface (194, 196) or several further connecting element surfaces (194, 196), in which or in which the connecting element (106) is not connected to the current-conducting element (110) and also not to the demarcation element (112), wherein the sum of the two connection surfaces (190, 192) is at least 40%, e.g.at least 70% of a total surface area (198) of the connecting element (106), wherein the total surface area (198) of the connecting element (106) can be calculated by adding the first connection surface (190) to the second connection surface (192) and optionally the optional connecting element surface (194, 196) or the optional connecting element surfaces (194, 196).

10. Contacting unit (108) according to one of claims 7 to 9, characterized in that the contacting unit (108) has no insulating element or has one or more insulating elements (168), wherein, if the contacting unit (108) has an insulating element (168), at least one, preferably at least two, particularly preferably at least three of the following conditions (a) to (c) is or are fulfilled: (a) the volume occupied by the insulating element (168) or the insulating elements (168) as a whole is at most 50%, e.g. at most 10%, of the volume occupied by the current-conducting element (110), the connecting element (106) and the demarcation element (112), as well as optionally the further current-conducting element (111) and optionally the further connecting element (107), together occupy a total of, (b) no insulating element (168) extends to a receiving portion (114) of a current-conducting element (110), (c) an insulating element (168) extends on the boundary element (112) along a boundary element portion (214, 216) which is not overlaid and / or overlapped by the extension portion (116). 11 . Contacting unit (108) according to one of claims 7 to 10, characterized in that the delimiting element (112) has a first delimiting element section (214) and a second delimiting element section (216), wherein the first delimiting element section (214) is superimposed and / or overlapped by the extension section (116) and the second delimiting element section (216) is not superimposed and / or overlapped by the extension section (116), wherein the connecting element (106) has a connecting zone (208) and an insulating zone (210), wherein the connecting zone (208) is arranged on the first delimiting element section (214) of the delimiting element (112) and the insulating zone (210) is arranged on the second delimiting element section (216) of the delimiting element (112).

12. Contacting unit (108) according to claim 11, characterized in that a superimposed and / or overlapped surface (218) of the delimiting element (112), into which all of the delimiting element sections (214) of the delimiting element (112) superimposed and / or overlapped by one or more extension sections (116) of one or more current-conducting elements (110) enter, amounts to at most 90%, preferably at most 60%, e.g. at most 25%, of a surface (220) of the delimiting element (112) into which all of the delimiting element sections (214, 216) that are covered by connecting element material enter.

13. Positioning unit (142), in particular for producing a component arrangement (100), e.g., a contacting unit (108), wherein the positioning unit (142) comprises: a first positioning zone (222) for positioning a first component (102), which can be, for example, a current-conducting element (110), on the positioning unit (142), a second positioning zone (224) for positioning a second component (104), which can be, for example, a delimiting element (112), on the positioning unit (142), and a barrier (146) for a flowable mass (139) located between the positioning zones (222, 224), wherein the flowable mass (139) can be, for example, a potting compound (134), and the flowable mass (139) can be introduced between the components (102, 104), for example for producing the component arrangement (100), in particular for connecting the components (102, 104).

14. Positioning unit (142) according to claim 13, characterized in that the positioning unit (142) has a non-stick material, e.g. a non-stick coating (240), at least on the barrier (146), has a mold release medium at least on the barrier (146), and / or contains a material or is formed entirely or partially from a material, wherein the material extends as far as the barrier (146) and the material is selected from materials, e.g. entirely or partially fluorinated polymers, from which potting elements (136) produced thereon from potting compound (134) can be detached without destruction.

15. Positioning unit (142) according to claim 13 or 14, characterized in that the first positioning zone (222) has a first contact zone (226) against which the first component (102), e.g. the current-conducting element (110), can be placed on the positioning unit (142), the second positioning zone (224) has a second contact zone (228) against which the second component (104), e.g. the delimiting element (112), can be placed on the positioning unit (142), wherein the positioning unit (142) has a lateral limiting element (230, 232) by which a slipping of at least one of the components (102, 104) in at least one of the contact zones (226, 228) relative to the other contactable component (102, 104) can be limited or prevented, wherein it can be advantageous if the first positioning zone (222) has a first lateral limiting element (230) by which a slipping of the first component (102) in the first contact zone (226) relative to the second component (104) can be limited or prevented, and / or the second positioning zone (224) has a second lateral limiting element (232) by which a slipping of the second component (104) in the second contact zone (228) relative to the first component (102) can be limited or prevented is.

16. Positioning unit (142) according to one of claims 13 to 15, characterized in that the barrier (146) is concave and / or recessed.

17. Positioning unit (142) according to one of claims 13 to 16, characterized in that the barrier (146) has a sloping barrier section (236), in particular a barrier section (236) sloping from the second contact zone (228), wherein it may be advantageous if the sloping barrier section (236) is an obliquely sloping barrier section (236).

18. Positioning unit (142) according to one of claims 13 to 17, characterized in that the barrier (146) has a non-sloping barrier section (238) and / or a sloping barrier section (236).

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