WO2023007032A1 - Batteriemodul und batterie - Google Patents
Batteriemodul und batterie Download PDFInfo
- Publication number
- WO2023007032A1 WO2023007032A1 PCT/EP2022/071534 EP2022071534W WO2023007032A1 WO 2023007032 A1 WO2023007032 A1 WO 2023007032A1 EP 2022071534 W EP2022071534 W EP 2022071534W WO 2023007032 A1 WO2023007032 A1 WO 2023007032A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- insulating film
- temperature control
- battery cells
- thermally conductive
- Prior art date
Links
- 239000000945 filler Substances 0.000 claims description 44
- 238000005496 tempering Methods 0.000 claims description 24
- 239000011888 foil Substances 0.000 abstract description 3
- 230000000717 retained effect Effects 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 103
- 230000001070 adhesive effect Effects 0.000 description 18
- 239000000853 adhesive Substances 0.000 description 17
- 238000009413 insulation Methods 0.000 description 17
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000010292 electrical insulation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 210000000352 storage cell Anatomy 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery module for constructing a battery, for example for constructing a traction battery for a vehicle, and such a battery.
- Battery systems for vehicles are usually provided with a suitably tuned temperature control element.
- This temperature control element is often designed as a chamber-like base element, which allows a medium, e.g. a liquid coolant, to flow through in a targeted manner.
- This floor element is usually made of metal.
- a thermally conductive and electrically insulating layer that can also compensate for geometric tolerances between the cells and the temperature control element.
- This can be a moldable mat (gap pad) or a viscous paste (gap filler). Viscous gap fillers can be applied to the temperature control element in wavy lines, for example. During assembly and the associated pressing of the battery cells against the temperature control element, air gaps are then closed by the distribution of the gap filler.
- a battery cell is understood to be an electrochemical storage cell, preferably a secondary cell.
- the term "cell” can be understood as the smallest contactable structural unit.
- a battery module is understood to be a structural unit that combines a large number of battery cells.
- a battery is accordingly understood to mean a structural unit that is made up of one or more interconnected battery modules.
- Such battery systems can also include a housing accommodating the battery modules, electrical interconnections and a battery management system. Batteries are preferably intended for use in an electric vehicle, but can also be used in other vehicles or other areas of application. With gap fillers, a distinction is made between non-hardening systems and systems that harden after application.
- Non-hardening systems are highly viscous, usually require a correspondingly high contact pressure of the cells for even distribution of the gap filler and create the mechanical connection between the cell and the temperature control element through adhesive force.
- Hardening systems can be set to a lower viscosity for application, so that even a small amount of contact pressure leads to even distribution.
- a supportive or structural bonding of the cell to the cooler can take place during curing.
- gap pads are usually associated with high costs, and tolerance compensation using gap pads is only possible within narrow limits, for example in the relation of uncompressed thickness compared to the thickness at maximum compression.
- the adhesive forces that can be achieved between the temperature control element, gap pad and battery cells are also limited and unsuitable for a structural connection.
- gap fillers on the other hand, is more cost-effective, makes it possible to compensate for higher tolerances, even with complex geometries, and allows viscosity and adhesive strength to be adjusted to suit the respective application.
- an object of the present invention to provide an improved battery module for constructing a battery, preferably a traction battery for vehicles, and a battery, preferably a traction battery for a vehicle.
- a battery module for constructing a battery, preferably a traction battery for a vehicle, comprising at least two battery cells held in a cell holder, which have temperature control surfaces to be brought into thermally conductive contact with a temperature control element of a battery housing.
- an electrically insulating insulating film arranged on the temperature control surfaces of the battery cells is provided.
- the insulating film is thus arranged in such a way that it is arranged between the battery cells and the temperature control element and can thus achieve electrical insulation of the battery cells with respect to the temperature control element.
- An electrically insulating insulation film is understood to mean a film with low electrical conductivity and/or high electrical dielectric strength, which is preferably a plastic film, e.g. made of PP (polypropylene), PEN (polyethylene naphthalate), PET (polyethylene terephthalate) or PI (polyimide).
- the film preferably has a thickness of less than 500 ⁇ m, more preferably less than 100 ⁇ m.
- the dielectric strength is preferably at least 10 kV/mm, more preferably at least 30 kV/mm.
- a thermally conductive element is preferably arranged on the temperature control element.
- the insulating film can then be arranged in such a way that when the battery module is assembled to produce a battery, the insulating film is arranged between the battery cells and the thermally conductive element, thereby providing electrical insulation between the battery cells and the thermally conductive element.
- a thermally conductive element can be, for example, a thermally conductive paste ("gap filler") or a thermally conductive and moldable mat (“gap pad”) that is applied to the Temperature control element is arranged to establish a thermal connection between the temperature control surfaces of the battery cells and the temperature control element.
- the thermally conductive element is intended to connect the battery cells thermally and mechanically (while compensating for any tolerances) to the temperature control element, while keeping the thermal resistance of this connection as low as possible.
- Cylindrical battery cells which, for example, have an uninsulated outside, are preferably arranged in the battery modules.
- the insulating film is preferably arranged on the tempering surfaces of all battery cells. In this way, all battery cells of the battery module can be electrically insulated from the temperature control element in an efficient manner with a single insulating film.
- the insulating film is preferably arranged over the entire area on the temperature control surfaces of the battery cells.
- the insulating film is preferably glued to temperature control surfaces of battery cells, preferably to temperature control surfaces of the majority of battery cells and particularly preferably to temperature control surfaces of all battery cells.
- a simplified assembly of the battery module can be achieved by gluing.
- the insulating film can have an adhesive side or an adhesive coating on one side. This can make it possible to simplify attachment of the foil to the battery cells.
- the insulating film can be glued to the battery cells in a simple manner, for example. Furthermore, it can be made possible that the attachment of the foil is less time-, material- and cost-intensive, compared to, for example, individual foiling of the battery cells.
- the insulating film is arranged on the temperature control surfaces of the battery cells and between the battery cells and the thermally conductive element, with the thermally conductive element preferably being a gap filler.
- the thermally conductive element preferably being a gap filler.
- thermally conductive element independently of its electrically insulating element properties can be done. Furthermore, it can be made possible that a layer thickness of the thermally conductive element can be chosen so thin that just the required tolerance compensation is made possible. This can make it possible for a thinner layer of a thermally conductive element to save on the use of material and thus on costs and weight, and to improve the heat transfer between the temperature control element and the battery cells.
- the battery module includes an insulating film can make it possible, for example, to reduce safety-critical insulation faults during the production of a battery or to reduce or eliminate them with regard to air inclusions in the gap filler.
- the insulating film can include at least one tab, which is folded out of the plane formed by the tempering surfaces.
- the tab can be arranged folded up to the side.
- the insulating film with the tab can thus be L-shaped when viewed in cross section.
- the tab can be folded up on at least one side of the insulating film.
- the insulating film can be designed with a U-shaped cross section, for example.
- the tabs can be folded up on all four sides.
- the tab is preferably formed circumferentially and the insulating film preferably forms a trough-shaped structure.
- the insulating film includes at least one tab, it can be made possible for the insulating film to simplify the handling of a battery module in production.
- the at least one tab of the insulating film can make it possible for fewer contact points on the battery module to components with battery potential to be accessible.
- the at least one tab forms a creepage distance, for example, in order to avoid leakage currents.
- the at least one tab can make it possible for a creepage distance to be lengthened. In other words, an insulation resistance, for example of the insulation film of the battery module, can be increased. Furthermore, this can make it possible for the safety of the battery system to be increased.
- At least one tab may also be placed between battery cells to prevent entry of a thermally conductive element into gaps between battery cells.
- the insulating film can also help ensure that the thermally conductive element, for example the gap filler, remains in the area assigned to it and does not flow into other areas of the battery or the battery module.
- a battery for a vehicle preferably a traction battery
- a battery module described above and a housing with a temperature control element for temperature control of the battery cells accommodated in the at least one battery module, and a thermally conductive element arranged on the temperature control element.
- the insulating film is in contact with the thermally conductive element.
- the battery can comprise a stacking sequence which, in the stacking direction, has a temperature control element, a thermally conductive element, for example a gap filler, an insulating film and the battery cells accommodated in the battery module.
- a temperature control element for example a thermally conductive element, for example a gap filler
- an insulating film for example a gap filler
- the battery cells accommodated in the battery module.
- the insulating film can be glued to the battery cells in the stacking order, for example.
- the insulating film can, for example, have an adhesive side or an adhesive coating on one side.
- the insulating film can be connected to the gap filler, for example, by adhesive or adhesive.
- An adhesive connection can be produced both via a corresponding adhesive property of the gap filler, as well as via an adhesive side or an adhesive coating of the insulation film, or via a combination of both.
- the insulation film can therefore also have an adhesive coating on both sides.
- the insulating film can extend over a battery module, a space unit of a battery or the entire surface of a battery.
- the insulating film can be arranged on the corresponding tempering surfaces of the battery cells of a battery installation space unit.
- the insulating film can be arranged on the corresponding tempering surfaces of the battery cells over the entire surface of a battery. This can make it possible for electrical insulation of a battery module or battery to be simplified compared to insulation of each individual battery cell.
- a battery for a vehicle preferably a traction battery, comprising at least one battery module with at least two battery cells held in a cell holder, which have temperature control surfaces that are to be brought into thermally conductive contact with a temperature control element of a battery housing, and a thermally conductive element that is located between the temperature control surfaces of the Battery cells and the temperature control element is arranged, as well as an insulating film arranged between the temperature control element and the thermally conductive element.
- the insulating film comprises at least one tab, which is folded out of the plane formed by the tempering surfaces.
- the insulating film is preferably arranged flat on the temperature control element. More preferably, the insulating film is arranged on the temperature control element and between the temperature control element and the thermally conductive element, preferably a gap filler. In other words, a tempering element, an insulating film, a thermally conductive element, preferably a gap pad or a gap filler, and the battery cells are provided in stacking order.
- the battery can preferably be provided with cylindrical battery cells.
- the at least one tab can, for example, be arranged folded up on a supporting structure of the battery housing.
- Tabs are understood here to mean that the insulating film has an overhang, for example, over a surface to be insulated and the overhang on the sides, for example of the battery module for the embodiment with insulating film, which is arranged on the battery cells, or for example on the sides of a supporting structure for the embodiment in which the insulating film is arranged on the tempering element is raised.
- a tab is understood to mean that part of the insulating film is folded over along a line or is angled in relation to the (remaining) insulating film. This can make it possible for a creepage distance for a creepage current to be lengthened via the lugs. For example, this can make it possible for a voltage of a battery to be increased, or for an insulation resistance to be increased and the probability of a safety-critical error to be reduced.
- a gap filler can be applied, for example, on the temperature control element side or on the cell module side, corresponding to the stacking sequence of the insulating film. For example, in a stacking sequence in which the insulating film is arranged between the battery cells and the thermally conductive element, a gap filler can be applied on the tempering element side. If the insulating film is arranged on the temperature control element, for example, the gap filler can be applied on the cell module side.
- the gap filler can be applied in a snake shape, for example.
- FIG. 1 shows a schematic sectional view through a battery with a battery module, a temperature control element, a thermally conductive element and an insulating film;
- Figure 2 is a schematic sectional view through a battery with a battery module, a
- Tempering element a thermally conductive element and an insulating film in an alternative arrangement and embodiment.
- FIG. 1 shows a very schematic sectional view through a battery 1, for example a traction battery for a vehicle, which can be used, for example, to supply an electric drive of the vehicle.
- a battery 1 for example a traction battery for a vehicle, which can be used, for example, to supply an electric drive of the vehicle.
- the sectional view of the battery 1 shows schematically a battery module 2, in which battery cells 5 are accommodated and held, a temperature control element 8, which serves to control the temperature of the battery cells 5 accommodated in the battery module 2, and a thermally conductive element 6, with which a thermal and mechanical connection between the tempering element 8 and the battery cells 5 of the battery module 2 is produced.
- the battery module 2 here includes, for example, an upper cell holder 3 and a lower cell holder 4, as well as the battery cells 5 held in the cell holders 3, 4.
- the battery cells 5 are obviously connected together in the battery module 2, so that the battery module 2 is an organizational unit for the battery cells 5 trains.
- the battery cells 5 are designed as cylindrical cells. However, other battery cells 5 can also be used.
- a battery 1 usually comprises a plurality of battery modules 2 in order to provide the correspondingly desired voltage and capacity.
- the battery modules 2 are usually accommodated together with other components in a battery housing 100, not specifically shown here, in order to achieve protection against external influences and controllable temperature control.
- the battery housing 100 of the battery 1 usually includes the temperature control element 8, which can also form a bottom of the battery housing 100, for example.
- a supporting structure 9 can be provided, which forms part of the battery housing 100 .
- the battery housing 100 can, for example, provide a space sealed against environmental influences for accommodating the components of the battery 1 .
- the battery cells 5 have tempering surfaces 50 which are arranged on the underside of the battery cells 5 in the figure.
- the temperature control surfaces 50 of the battery cells 5 point towards the temperature control element 8 and should be brought into thermally conductive contact with it in order to achieve temperature control of the battery cells 5 .
- the battery module 2 is connected to the supporting structure 9 of the battery housing 100 via fastening means shown schematically.
- the thermally conductive element 6 can be designed, for example, in the form of a thermally conductive paste, for example a gap filler, or a thermally conductive mat, for example a gap pad.
- An insulating film 7 is arranged between the battery cells 5 of the battery module 2 and the thermally conductive element 6 .
- the insulating film 7 insulates the battery cells 5 from the temperature control element 8. A current flow between the battery cells 5 and the temperature control element 8 can thus be reduced or avoided. This is of particular importance when the battery cells 5 are arranged in the battery module 2 without their own external insulation, as is usually the case in traction batteries that are formed from cylindrical battery cells.
- the provision of insulation by the thermally conductive element 6 can only be ensured with great effort in terms of process technology, particularly when using pasty materials. Electrical insulation can be achieved here by the insulating film 7 independently of the specific design of the thermally conductive element 6 and the assembly tolerances of the battery module 2 in the battery 1 .
- the insulating film 7 has tabs 10 which are turned up at the side.
- the lugs 10 of the insulating film 7 rest on the lower cell holder 4 here, for example.
- the tabs 10 can additionally or alternatively bear against the battery cells 5 or be glued to them.
- the insulating film 7 can have an adhesive side that adheres to the battery cells 5 here, for example.
- the insulating film 7 can be attached to the thermal contact surfaces of the battery cells 5 with its adhesive side. Accordingly, the insulating film 7 can be provided as part of the battery module 2 so that the battery module 2 can be handled together with the insulating film 7 .
- This can simplify the assembly of the battery module 2, for example, since the battery module 2, together with the insulating film 7 already mounted on it, can be inserted into the battery housing 100 with the tempering element 8 and the thermal element 6 applied thereto. The insulating film 7 is then already in the intended position and can come into contact with the thermal element 6 and in this way provide the required insulation.
- the thermally conductive element 6 can be a gap filler.
- the gap filler can be applied to the tempering element 8 and then the battery module 2 with the Insulating film 7 are placed and mounted.
- the gap filler can compensate for component tolerances, for example, and thus form a reliable thermal contact between the battery cells 5 and the temperature control element 8 .
- the insulating film 7 is then arranged between the thermal contact surfaces of the battery cells 5 and the gap filler as a thermally conductive element 6 . This makes it possible to achieve sufficient insulation resistance regardless of the properties of the gap filler used (e.g. in relation to electrical conductivity, layer thickness, air pockets), and the technically more complex and expensive insulation of each individual battery cell can be omitted.
- the tabs 10 also allow the insulation film 7 to be connected more easily to the battery module 2 or to the lower cell holder 4 and/or the battery cells 5 .
- the tabs 10 are formed circumferentially, it can be avoided with a particularly creepable thermally conductive element 6, for example a particularly low-viscosity gap filler, that the material of the thermally conductive element 6 flows or gets into areas of the battery module 2 where it is not is provided. This can also ensure that the volume of the material of the thermally conductive element 6 between the battery cells 5 and the temperature control element 8 remains essentially constant during assembly and does not flow between the battery cells 5, where it does not have its effect or not in the intended form can unfold.
- a particularly creepable thermally conductive element 6 for example a particularly low-viscosity gap filler
- the tabs 10 can be used both to connect the insulating film 7 to the battery module 2 and to prevent gap filler or another thermally conductive element 6 from entering the spaces between the battery cells 5 .
- the tabs 10 of the insulating film 7 can also be arranged only in areas of the battery module 2 in which there is a risk of gap filler flowing between the battery cells 5--that is to say, for example, at the positions of the gaps.
- the tabs 10 can be designed in such a way that they form a shield against the gap filler.
- FIG. 2 shows a schematic sectional view through a battery 1, which can be provided, for example, as a traction battery for a vehicle with an electric motor.
- the schematic battery 1 is again shown as an example with a battery module 2 , a temperature control element 8 , a thermally conductive element 6 and an insulating film 7 .
- the insulating film 7 is arranged directly on the temperature control element 8 .
- the thermally conductive element 6 is thus arranged between the battery cells 5 and the insulating film 7 so that the thermally conductive element 6 comes into direct contact with the battery cells 5 of the battery module 2 .
- the insulating film 7 can have an adhesive side with which the insulating film 7 can be glued to the tempering element 8 .
- the insulating film 7 has tabs 10 which, as shown by way of example, are folded upwards at the side.
- the insulating film 7 with the tabs 10 is thus in contact with the tempering element 8 and the supporting structure 9 of the battery housing 100, or is glued to these elements.
- the tabs 10 are formed circumferentially and the insulating film 7 thus forms a kind of trough, it is possible to prevent a thermally conductive element 6 capable of creeping, for example a gap filler, from flowing out of the area intended for it. If an electrically conductive, thermally conductive element 6 is used, electrical contacting between the battery cells 5 and structures of the battery housing 100 can also be avoided.
- the battery housing 100 of the battery 1 can be lined with an insulating film 7, for example, preferably on a surface that is provided as a temperature control element 8.
- the tabs 10 of the insulating film can be applied to the vertical sides of the battery housing, so that an electrically insulated "trough" is created, into which a gap filler or a gap pad can be inserted, for example.
- a gap filler as a thermally conductive element can, for example, be applied (in the form of a snake) in the "trough” and then a battery module 2 can be placed in the battery housing, on the gap filler.
- the battery cells 5 touch the gap filler or are at least partially surrounded by the gap filler, so that a thermal connection to the temperature control element is created.
- the insulating film 7 increases a creepage distance, so that air pockets in the gap filler cannot lead to a critical error.
- thermally conductive element e.g. gap filler
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020247002964A KR20240025010A (ko) | 2021-07-30 | 2022-08-01 | 배터리 모듈 및 배터리 |
EP22761431.0A EP4378021A1 (de) | 2021-07-30 | 2022-08-01 | Batteriemodul und batterie |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021119944.1 | 2021-07-30 | ||
DE102021119944.1A DE102021119944A1 (de) | 2021-07-30 | 2021-07-30 | Batteriemodul und Batterie |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023007032A1 true WO2023007032A1 (de) | 2023-02-02 |
Family
ID=83149286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/071534 WO2023007032A1 (de) | 2021-07-30 | 2022-08-01 | Batteriemodul und batterie |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4378021A1 (de) |
KR (1) | KR20240025010A (de) |
DE (1) | DE102021119944A1 (de) |
WO (1) | WO2023007032A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015201294A1 (de) * | 2015-01-26 | 2016-07-28 | Robert Bosch Gmbh | Batteriemodul |
DE102016109931A1 (de) * | 2016-05-30 | 2017-11-30 | Lisa Dräxlmaier GmbH | Kühlvorrichtung und Verfahren |
DE102019211191A1 (de) * | 2019-07-26 | 2021-01-28 | Elringklinger Ag | Batterievorrichtungen und Verfahren zum Fixieren von Batteriezellen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6267571B2 (ja) | 2014-04-23 | 2018-01-24 | 日立建機株式会社 | 作業機械及びこれに搭載される蓄電装置の冷却構造 |
US10056642B2 (en) | 2014-11-20 | 2018-08-21 | Ford Global Technologies, Llc | Battery assembly including battery cells wrapped with thermally conductive film |
EP3220444A1 (de) | 2016-03-14 | 2017-09-20 | Nordfels GmbH | Batterie |
CN112272886B (zh) | 2018-09-26 | 2022-11-08 | 日本汽车能源株式会社 | 电池组装体 |
EP3916832A4 (de) | 2019-01-25 | 2022-02-16 | Kabushiki Kaisha Toshiba | Batteriepack und batteriesystem |
-
2021
- 2021-07-30 DE DE102021119944.1A patent/DE102021119944A1/de active Pending
-
2022
- 2022-08-01 EP EP22761431.0A patent/EP4378021A1/de active Pending
- 2022-08-01 KR KR1020247002964A patent/KR20240025010A/ko unknown
- 2022-08-01 WO PCT/EP2022/071534 patent/WO2023007032A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015201294A1 (de) * | 2015-01-26 | 2016-07-28 | Robert Bosch Gmbh | Batteriemodul |
DE102016109931A1 (de) * | 2016-05-30 | 2017-11-30 | Lisa Dräxlmaier GmbH | Kühlvorrichtung und Verfahren |
DE102019211191A1 (de) * | 2019-07-26 | 2021-01-28 | Elringklinger Ag | Batterievorrichtungen und Verfahren zum Fixieren von Batteriezellen |
Also Published As
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DE102021119944A1 (de) | 2023-02-02 |
KR20240025010A (ko) | 2024-02-26 |
EP4378021A1 (de) | 2024-06-05 |
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