EP2742558A2 - Batteriegehäuseteil zur aufnahme einer traktionsbatterie eines elektrofahrzeugs und verfahren zur herstellung des batteriegehäuseteils - Google Patents
Batteriegehäuseteil zur aufnahme einer traktionsbatterie eines elektrofahrzeugs und verfahren zur herstellung des batteriegehäuseteilsInfo
- Publication number
- EP2742558A2 EP2742558A2 EP12758749.1A EP12758749A EP2742558A2 EP 2742558 A2 EP2742558 A2 EP 2742558A2 EP 12758749 A EP12758749 A EP 12758749A EP 2742558 A2 EP2742558 A2 EP 2742558A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery housing
- housing part
- battery
- mat
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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Classifications
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- H—ELECTRICITY
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- 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/227—Organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/685—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by laminating inserts between two plastic films or plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
- B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/18—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length in the form of a mat, e.g. sheet moulding compound [SMC]
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
- B29C51/004—Textile or other fibrous material made from plastics fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
- B29C70/865—Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
- B29K2021/003—Thermoplastic elastomers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
- B29K2021/006—Thermosetting elastomers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
- B29K2995/0011—Electromagnetic wave shielding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7146—Battery-cases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
- B32B2260/023—Two or more layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/615—Heating or keeping warm
-
- 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
- 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
- Battery housing part for receiving a traction battery of an electric vehicle and method for producing the battery housing part
- the present invention relates to a battery housing part for receiving a traction battery of an electric vehicle and a method for producing a battery housing part.
- Battery housing for traction batteries of electric vehicles usually have at least two interconnected battery housing parts, which together form the battery case.
- Known battery housing parts are usually formed from flat, folded or deep-drawn metal sheets, which usually consist of aluminum or steel.
- battery housing or battery housing parts made of metal are characterized by a high mechanical strength, but are not suitable for use as a heat-insulating battery housing or battery housing part due to their high thermal conductivity.
- the provision of thermal insulation for a traction battery is of great importance, especially in winter, since a traction battery can provide sufficient and stable drive power only at temperatures in the range of about 10 to 40 ° C for the drive of the electric vehicle.
- the traction battery must be cooled imperatively in the summer or in - compared to Central Europe - climatically warmer regions. This also requires a lot of energy to be provided by the traction battery and is no longer available as drive energy.
- Thermal insulation of a traction battery is possible, and to provide a method for its production.
- the battery housing part according to the invention has at least one wall, which at least partially consists of a thermoplastic or duroplastic plastic material, and wherein the wall has at least one cavity which is provided within the wall.
- the battery housing part according to the invention has at least one wall which consists at least partially or even entirely of a thermoplastic or thermosetting plastic material.
- Thermoplastic or thermosetting plastic material is characterized by the fact that it has orders of magnitude lower thermal conductivity than a metallic material.
- the battery is kept quasi on "feel-good temperature", although possibly additional electrical energy must be removed from the battery and converted into heating or cooling energy - which is then no longer available for pure driving performance - this removal and conversion of electrical energy
- the wall also has at least one cavity, which is provided within the wall. By providing the at least one cavity, the thermal insulation properties or thermal insulation properties of the battery housing part are substantially improved.
- the battery housing part according to the invention over the known solutions significantly improved thermal insulation properties or heat insulation properties, due to the provision of at least one wall - which consists at least partially of a thermoplastic or thermosetting plastic material - in conjunction with the at least one cavity.
- the cavity is a closed cavity.
- a closed cavity very good thermal insulation properties can be provided.
- the same strength and rigidity can be achieved as in a comparable solid body, so that the battery housing part according to the invention has an advantageous high strength with low weight.
- the closed cavity may have at least one inlet or outlet for a heat transfer medium.
- a circuit with a corresponding battery housing part, a heat transfer medium and a heat transfer conveyor unit may comprise a, preferably electrically operable, heating and / or cooling device for the heat transfer medium.
- the cavity is an evacuated hollow space.
- a thermal insulation material can be introduced into the cavity.
- the thermal insulation material is preferably a polymeric foam material.
- the polymeric foam material may be a thermoset foam material or a high temperature thermoplastic foam material.
- a thermoset foam material is characterized by a very high temperature resistance, which is particularly advantageous when driving an electric vehicle in the upper power range of the electric vehicle, where high operating temperatures of the traction battery exist or arise.
- a foam material made of a high-temperature thermoplastic advantageously has a high temperature resistance.
- the polymeric foam material may also be injected into the cavity, for example.
- the polymeric foam material may also be injected into the cavity, for example.
- Foam material may additionally have at least partially a metallization.
- copper, nickel, tin, silver, gold, cobalt or combinations of the abovementioned materials are suitable as the material for the metallization.
- an effective shielding against electromagnetic radiation is advantageously achieved.
- the thermal insulation material may be a nonwoven and / or woven fabric, preferably of conductive or conductive coated material.
- the nonwoven and / or woven fabric may in particular be a polyester fabric and / or polyester nonwoven, preferably with an at least partial metallization.
- copper, nickel, tin, silver, gold, cobalt or combinations of the abovementioned materials are suitable as the material for the metallization.
- the fabric and / or fabric may be dipped in various (metal) baths and / or galvanic baths to achieve metallization.
- a shield against electromagnetic radiation of the battery housing part or the at least two battery housing parts comprehensive battery housing is advantageously achieved.
- the fleece and / or fabric may have different densities and / or weaves to adjust the flexibility and / or shielding effect against electromagnetic radiation. It is also conceivable to provide a layer structure of purely thermal insulating fleece and / or fabric and metallized fleece and / or fabric for the thermal insulation material.
- the heat transfer coefficient of a battery housing part according to the invention may preferably be within a range of 0.5 to 10 W / m 2 K, preferably within a range of 1 to 8 W / m 2 K, more preferably within a range of 2 to 6 W / m 2 K, even more preferably within a range of 3 to 4.5 W / m 2 K. This is significantly lower than that achievable with known solutions.
- the thermal conductivity of the thermal insulation material is preferably in a range from 0.01 W / m K to 15 W / m K, more preferably in a range from 0.02 W / m K to 10 W / m K, preferably in one Range of 0.03 W / m K to 5 W / m K, more preferably in a range of 0.04 W / m K to 1 W / m K.
- the thermal insulation material in the form of a metallic
- the metallic foam can be formed, which is characterized by a particularly high temperature resistance.
- the metallic foam particularly preferably consists at least partially or entirely of a titanium-based material or another high-alloyed metal material (for example high-alloyed chromium-nickel steel) with a then advantageous low thermal conductivity.
- a metallic foam advantageously makes it possible, in addition to thermal insulation, to simultaneously achieve improved electromagnetic shielding (electromagnetic compatibility - in short EMC) of the battery housing part or of the battery housing comprising at least two battery housing parts.
- the thermal insulation material may also have a honeycomb structure or honeycomb structure for substantially increasing the strength.
- the wall has two wall elements, which consist of a thermoplastic or thermosetting plastic material reinforced with continuous fibers, each wall element having a circumferential edge region, wherein the peripheral edge regions are at least partially or at least partially connected to each other and the remaining areas the wall elements for forming the cavity, which is provided between the two wall elements, at least partially spaced from each other.
- the connection may in this case preferably be in the form of a material-locking, in particular in the form of a cohesive and planar connection.
- the border areas can be connected to each other in any way.
- the edge regions can be sewn or riveted together.
- a wall with two wall elements which consist of a thermoplastic fiber or thermosetting plastic material reinforced with continuous fibers, can, as a result of the see the reinforcement by the continuous fibers advantageously be formed or formed with high strength and low weight.
- the remaining areas of the wall elements are at least partially or entirely (or completely) spaced from each other or spaced from each other to form the cavity which is provided between the two wall elements.
- the fiber reinforcement of the wall elements is preferably formed by mineral fibers, in particular glass fibers, and / or by carbon fibers, and / or by aramid fibers and / or by polymeric fibers, and / or by synthetic fibers and / or fibers of renewable raw materials.
- the circumferential edge regions can also be connected to one another along their entire extent or entirely to form a closed cavity, wherein a very high strength and rigidity of the battery housing part can be connected to a closed cavity, as already explained above.
- a polymer can be introduced into the cavity
- Foam material may be introduced, and at least one wall element may have on a side facing away from the cavity of the wall member at least one pressed-in area which forms a depression and pressed between the pressed-in area and the other wall element located foam material.
- This recess or the pressed-in area can be formed in a simple and practical manner by partial impressions of the wall element on the side facing away from the cavity and thus inward impressions or compression of the foam material.
- a desired or preferred topography or surface shape of the wall element or the wall can be formed.
- any device such as eg an electrical line, or any other element can be accommodated in the recess in a space-saving manner if the traction battery is accommodated in the battery housing part or in the battery housing.
- a polymeric foam material may be incorporated in the cavity, and at least one continuous recess may be formed in the foam material, at least one wall element having on a side of the wall member facing away from the cavity a recessed area defining a recess is formed, which passes through the recess, and wherein the pressed-in area at least partially has a flat contact with the other wall element.
- any device or any element can be attached in a practical manner via at least one screw, for which openings may be provided for receiving the screw or screw which pass through the pressed-in area and the other wall element , Since the recess extends through the recess of the foam material and the pressed-in area at least in some areas has a surface contact with the other wall element, when tightening the
- the pressed-in area may preferably be of elongated design, wherein in the elongated recess formed by the elongated pressed-in area, any elongated device, e.g. an electrical line may be accommodated when the traction battery is received in the battery housing part or in the battery housing.
- the pressed-in area may preferably extend between two opposite edge sections of the wall element.
- the pressed-in area may be elongate and preferably extend between two opposite edge portions of the wall element, wherein in the recess formed by the pressed-in area a Temper michstechnisch for tempering the traction battery is received, which is traversed by a Temper michsfluid and which preferably at least partially having a flat contact with the traction battery, when the traction battery is received in the battery housing part.
- a trained according to this preferred embodiment battery housing part allows for effective temperature control of the traction battery or drive battery during operation of the electric vehicle.
- the Temper michstechnische can be provided for both the cooling and heating of the traction battery, by heat transfer from the traction battery to the Temper michsfluid or by heat transfer from the Temper michsfluid on the traction battery. About the preferably flat contact a very effective cooling or heating can be made. By providing the Temper michstechnisch in the depression also results in a very space-saving Temper michsnickeit for the traction battery.
- the pressed-in area can furthermore be designed to be circular or oval, with a screw connection preferably being provided in the region pressed in by the circular or oval-as explained above.
- the pressed-in area can generally extend between two opposite edge sections of the wall element.
- the invention further relates to a battery housing for a traction battery of an electric vehicle comprising at least two interconnected battery housing parts according to the invention.
- the compound can e.g. be formed in the form of a material connection.
- the compound may also be in the form of a positive connection, in particular in the form of a latching connection or snap connection. More preferably, the connection may be formed via at least one screw connection.
- a planar element may be provided from an electrically conductive material, wherein the planar element is provided for the shielding of an environmental region of the Batteriegeophuseteils and / or for the shielding of the traction battery from electromagnetic radiation.
- the planar element made of an electrically conductive material can be accommodated at least in certain areas.
- the sheet element may be formed as a film or as a mesh or as a deposited layer or as a vapor-deposited layer.
- the sheet member is a metal foil that provides effective shielding against electromagnetic radiation.
- the metal foil may in this case preferably be a copper foil or an aluminum foil or a nickel foil or a silver foil or a gold foil or a foil of an iron-based material (eg a stainless steel alloy).
- the planar element is a fleece and / or fabric and / or polymeric foam material made of conductive or conductively coated material.
- the planar element may be a fleece and / or fabric and / or polymeric foam material with an at least partially metallization.
- the sheet member may also be a non-woven and / or woven and / or polymeric foam material having an at least partially carbon-based coating.
- the nonwoven and / or fabric and / or polymeric foam material may in particular be a polyester fabric and / or polyester nonwoven and / or polyolefin foam material.
- copper, nickel, tin, silver, gold, cobalt or combinations of the aforementioned materials are suitable as the material for a metallization.
- the nonwoven and / or woven and / or polymeric foam material may be dipped in various (metal) baths and / or galvanizing baths to achieve metallization.
- the fleece and / or fabric and / or polymeric foam material may have different densities and / or weaves and / or pore distributions and pore sizes for adapting the flexibility and / or shielding effect to electromagnetic radiation. It is also conceivable to provide a layer structure of purely thermal insulating fleece and / or fabric and / or polymeric foam material and a conductive or conductive coated fleece and / or fabric and / or polymeric foam material for the sheet-like element.
- the planar element is a metallic net or in the form of a metallic net.
- a metallic net can be made with a very low weight while allowing effective shielding of electromagnetic radiation.
- the metallic mesh comprises a plurality of meshes, wherein the meshes are bounded by metallic mesh yarns, each mesh having a mesh area with an areal size falling within a range of 0.0025 mm 2 to 4 mm 2 , and wherein the Thickness of the net threads is within a range of 0.05 mm to 0.5 mm.
- Such a trained metallic network advantageously allows a very effective shielding against electromagnetic radiation in a frequency range up to about 3 GHz, so that at a favorable very low weight of the metallic network at the same time a very effective shielding in high frequency ranges is possible.
- the metallic mesh which may be formed in particular in the form of a fabric, may preferably consist of copper, aluminum, nickel, silver, gold or an iron-based material (eg a stainless steel alloy).
- the planar element lies at least in areas on the receiving body in a planar manner, with the flat element being particularly preferably designed in the form of a layer which rests flat on the receiving body and is connected to the receiving body in a material-locking manner.
- the layer is preferably applied by means of a sputtering method, painting method and / or vapor deposition method. These methods make it possible to practically apply a layer that is particularly suitable for mass production and has a very uniform or substantially uniform layer thickness.
- the layer may also be a layer applied by means of a galvanic process. In particular, with a galvanic process, a very uniformly formed layer can be applied with a substantially constant layer thickness.
- the layer may be e.g. consist of a copper enamel or other electrically conductive lacquers with metallic admixtures (e.g., particles, flakes, powders).
- the layer can also be applied by a flame spraying process.
- planar elements can be electrically conductively connected to the ground potential of the electric vehicle (for example to the body or the vehicle frame).
- the electrically conductive connection is preferably realized directly via the planar element or via a metallic conductor strip.
- the invention further relates to a battery housing for a traction battery of an electric vehicle comprising at least two battery housing parts according to the invention, wherein the battery housing parts are connected to one another.
- the planar elements of the battery housing parts may be electrically conductively connected to each other or may have an electrical contact with each other.
- An electric vehicle in the context of this invention also includes so-called hybrid vehicles in which in addition to an electric motor and an internal combustion engine provides drive power.
- the inventive method for producing a battery housing part for receiving a traction battery of an electric vehicle comprises the following steps:
- thermoplastic matrix of the first and / or the second mat arrangement (46, 48) heating the thermoplastic matrix of the first and / or the second mat arrangement (46, 48) to or above the melting temperature
- a battery housing part according to the invention can be produced in a practical manner using the flat-shaped, fiber-reinforced mats and the at least one piece of material made of a thermal insulation material.
- the thermal insulation material can, as already stated above, preferably be a polymeric foam material.
- the polymeric foam material may be a thermoset foam material or a high temperature thermoplastic foam material.
- the thermal insulation material may also be formed in the form of a metallic foam, which may particularly preferably at least partially or entirely consist of a titanium-based material or a high-alloyed metal material (eg high-alloy chromium-nickel steel) with a then advantageous low thermal conductivity ,
- the thermal insulation material can also be formed in the form of a metallic foam, which consists of an aluminum-based material, the cell walls being preferably thinner walled and / or the pore size preferably larger than the abovementioned metallic materials with lower thermal conductivity.
- the piece of material made of a thermal insulation material provided in step A may preferably have at least one surface area coated with an adhesion promoter, wherein the adhesion promoter may be formed in particular in the form of an adhesive.
- an adhesion promoter By means of the adhesion promoter, a stabilizing cohesive connection of the material piece (s) can be provided with a wall region of the finished battery housing part delimiting the cavity.
- the method is particularly useful for the manufacture of a wide variety of battery enclosure parts, e.g. in the context of a series production of advantage. All method steps may preferably be carried out by at least one computer-controlled industrial robot. In particular, the steps B to F can be performed by industrial robots or robotic arms.
- step F The formation of the battery housing part or the final design of the battery housing part takes place in step F by plastically deforming and / or consolidating the first and the second mat arrangement. Consolidation is to be understood according to the invention as compaction or compacting of the fiber-reinforced mats. During consolidation, air taken in through the compartments, in particular in the mats, can escape from the mats.
- step F plastic deformation of the first and second mat arrangement results in formation or final formation of the battery housing part, which can also be done in particular by plastic deformation in conjunction with consolidation.
- thermoplastic matrix of the first and / or the second mat arrangement By heating the thermoplastic matrix of the first and / or the second mat arrangement up to or above the melting temperature in step D, the thermoplastic matrix can be converted at least partially or completely into a plastically deformable state, which is the one to be carried out in step F.
- Formation of the battery housing part is required by plastic deformation and / or by consolidating the first and second mat assembly.
- the plastic deformation and / or consolidation preferably takes place at least partially in the formation of one or more cohesive connections between the mats.
- the heating of the thermoplastic matrix is preferably carried out by convection heating and / or infrared radiation. Further preferably within a convection and / or infrared continuous furnace. The heating by infrared radiation or by convection heating allows a uniform heating of the first and the second mat arrangement.
- the first mat arrangement may comprise a fiber-reinforced mat or a plurality of fiber-reinforced mats and also the second mat arrangement may comprise a fiber-reinforced mat or a plurality of fiber-reinforced mats, wherein in step B the first mat arrangement preferably by stacking and / or forming and / or juxtaposing the plurality of mats, and wherein in step C, the second mat arrangement is preferably formed by stacking and / or abutting and / or juxtaposing the plurality of mats.
- the essentially flat, fiber-reinforced mats are preferably cut mats or pieces of material with a thermoplastic matrix at least partially surrounding the fibers.
- the fiber reinforcement of the mats is preferably formed by mineral fibers, in particular glass fibers, and / or by carbon fibers, and / or by aramid fibers and / or by polymeric fibers, and / or by synthetic fibers and / or fibers of renewable raw materials.
- step E the areal contact of a, preferably circumferential, edge region of the first mat arrangement with a, preferably circumferential, edge region of the second mat arrangement and the joining of the edge regions to form a cavity receiving the material piece takes place.
- the edge areas can be connected to each other in any way, for. B by sewing or riveting.
- the edge regions can be connected to one another in a flat and cohesive manner.
- the connection can also be realized by at least one screw connection.
- a peripheral edge region of the first mat arrangement can be connected to a peripheral edge region of the second mat arrangement.
- the circumferential edge regions can also be connected to each other along their entire extent (or entirely) to form a closed cavity in which the piece of material is received from the thermal insulation material, with a closed cavity having very high strength and rigidity Battery housing part is connected, as already stated above.
- step B and C the mat arrangements and the piece of material are placed on a rough contour of the battery case part specifying workpiece carrier and built into a three-dimensional preform, wherein during or after completion of the construction of the preform a positional fixation of at least two Mats are made to each other and wherein after the fixing and after steps D and E, the preform placed in a final shape of the battery housing part forming mold and in step F by providing a mold internal pressure from the preform the battery housing part by plastically deforming the mats of the preform and / or by consolidating the mats of the preform.
- the inclusion of the rough contour predetermining tool carrier allows in a practical way a precise production of a battery housing part.
- a precise production of a multiplicity of identical or essentially identical battery housing parts for example, is advantageous. possible as part of a series production.
- step F only by consolidating the training or the final design of the battery case part can be done.
- the fiber-reinforced mats may preferably be unidirectionally fiber-reinforced mats.
- the preform is preferably formed such that the fiber orientation of the mats is matched to the forces acting in the subsequent use of the battery housing part, and the load paths resulting therefrom within the battery housing part. Due to the coordination of the fiber orientation on the three-dimensional preform is also achieved that the forces acting on the manufactured battery case parts, and the resulting within the battery housing part load paths can be optimally absorbed by the unidirectional fiber reinforcement.
- the provision of the mold internal pressure can be carried out within the mold by injection-molding of the preform with plastic.
- the provision or adjustment of the mold internal pressure can also by additional insertion of GMT pieces (GMT: Abbreviation for glass mat reinforced thermoplastic), more preferably by a shot-pot technique or by inserting sealing cords in the mold or by inserting a sealing film in the mold done.
- GMT Abbreviation for glass mat reinforced thermoplastic
- a uniform internal pressure of the preform or of the molded part is achieved by a mold internal pressure.
- the intended position fixation of at least two of the mats, wherein preferably a position fixation of all mats takes place to each other, can be made, for example, by forming at least one or more cohesive connections between the mats by welding or by means of a welding process.
- the position fixing of the mats is preferably carried out by an ultrasonic and / or heating element and / or laser welding process.
- the positional fixing of the mats to each other during or after completion of the construction or the formation of the preform offers the advantage that the preform has a significantly improved handling.
- the first mat arrangement and the second mat arrangement each comprise a plurality of fiber-reinforced mats, it is preferable to fix the position of all the mats of the first mat arrangement to one another and also to fix the position of all mats of the second mat arrangement to one another.
- the battery housing part is formed by deep-drawing the mats of the first and second mat assemblies. Also by a deep-drawing process can be carried out in a practical and simple way a design of the battery case part, especially if the design of the battery housing part is a particular suitable for the thermoforming process design.
- thermal insulation material in foam form that is to say in particular polymeric foam material or metallic foam material, into the cavity only after the cavity has been formed.
- An alternative method of manufacturing a battery case part for a battery case of a traction battery of an electric vehicle includes the following steps:
- thermoset matrix providing substantially flat, fiber-reinforced mats with a thermoset matrix at least partially surrounding the fibers
- thermoset matrix (E-2) Curing the thermoset matrix and optionally cooling the battery housing part.
- Fig. 2 is a sectional view of the battery case part along the section A-A of
- Fig. 3 is a sectional view of the battery case part along the section B-B of
- FIG. 4 is a sectional view of the battery housing part along the section C-C of Fig. 1,
- FIG. 5 shows a very schematic sectional view of an overall arrangement of mats and pieces of material
- FIG. 6 shows a very schematic sectional view of a pressed-in area with a tempering line received in the depression of the pressed-in area.
- the battery housing part 10 shown in the figures for receiving a traction battery of an electric vehicle is in the form of a bottom plate 10 for receiving the bottom portion of the traction battery.
- the battery housing part 10 has a wall 12 with a first wall element 14 and a second wall element 16, each consisting of a reinforced with continuous fibers thermoplastic (alternatively thermoset) plastic material.
- Each wall element 14, 16 has a peripheral edge region 20, wherein the circumferential edge regions 20 are connected to one another in a materially bonded manner and the remaining regions 22 (see FIG 24, which is provided between the two wall elements 14, 16, are partially spaced from each other.
- the cavity 24 is a closed cavity 24, wherein for the formation of the closed cavity 24, the peripheral edge regions 20 are connected to each other over their entire extent surface and cohesively.
- a thermal insulation material 26 is introduced in the form of a polymeric foam material 26.
- a planar element of an electrically conductive material wherein the planar element is provided for the shielding of an environmental region of the battery housing part 10 and / or for the shielding of the traction battery from electromagnetic radiation.
- the planar element is formed as a fleece and / or tissue with a metallization.
- metallic foils or nets or coatings can be provided as a planar element.
- the first wall element 14 has on a side facing away from the cavity 24 of the first wall element 14 two pressed-in areas 28, each forming a recess 30 and press between the pressed-in area 28 and the second wall element 16 located polymeric foam material 26.
- a temperature control line for controlling the temperature of the traction battery can be accommodated, which can be flowed through by a Temper michsfluid and at least partially has a flat contact with the traction battery, when the Trak- sionbatterie is received in the battery housing part 10 and the battery housing.
- FIG. 6 shows the pressed-in region 28 with a temperature control line 52 received in the depression 30 of the pressed-in region 28.
- the tempering line 52 has an oval cross-sectional shape, wherein four webs 56 for stabilizing the temperature control line 52 consisting of a polymer material are provided in the inner lumen 54 of the tempering line 52 through which the tempering fluid flows.
- a planar piece 58 of an at least partially elastic polymer material is provided between the Temper michs effet 52 and the pressed-in area 28, a planar piece 58 of an at least partially elastic polymer material.
- the second wall element 16 has on a side facing away from the cavity 24 of the second wall element 16 has two elongated pressed-in areas 28, each having a flat contact 32 to the first wall element 14.
- the polymeric foam material has two contiguous recesses 34, one of the recesses 30 formed by the pressed-in regions 28 in each case passing through one of the recesses 34.
- any device or any element can be fastened in a practical manner via one or more screw connections, for which purpose openings 36 for receiving the screw 38 or screw connection can be provided, which pass through the entire wall 12, as illustrated in Fig. 3 for the right opening 36.
- screw connections for which purpose openings 36 for receiving the screw 38 or screw connection can be provided, which pass through the entire wall 12, as illustrated in Fig. 3 for the right opening 36.
- the battery housing part 10 shown in the figures is a battery housing part 10 produced by the method according to the invention, the first wall element 14 being formed from the mat or mats of the first mat arrangement, and the second wall element 16 being made from the mat or the mats of the second mat arrangement was formed (see also steps B and C of the inventive method).
- the polymeric foam material 26 introduced into the cavity 24 is in this case polymeric foam material of a piece of material provided (compare also steps A to C of the method according to the invention).
- the polymeric foam material is a thermoset foam material.
- Fig. 5 illustrates in a sectional view very schematically a formed by making steps A to C of the method according to the invention total assembly 40 comprising a first mat assembly 46, a second mat assembly 48 and a piece of material 44 made of a thermal insulation material 26.
- Aus the overall assembly 40 may be formed according to step F of the method according to the invention by plastic deformation and / or by consolidating the mats 42 of the first mat assembly 46 and the second mat assembly 48, a battery housing part.
- the formation of the overall arrangement 40 was carried out by placing a piece of material 44 made of a thermal insulation material 26 on a first mat arrangement 46 - which was previously formed by stacking and applying a first plurality of fiber-reinforced mats 42 - and then placing a second plurality of fiber reinforced mats 42 on the piece of material 44 to form a second, placed on the piece of material 44 mat assembly 48, wherein the second mat assembly 48 has been formed by stacking and mutually applying the second plurality of fiber reinforced mats 42.
- the formation of the battery housing part takes place after heating the thermoplastic matrix of the mat arrangements 46 and 48 according to step D, wherein after step D and before step F according to step E a surface contact of a peripheral edge region 50 of the first mat arrangement 46 with a peripheral edge region 50 of the second mat arrangement 48 is made (in Figure 5 symbolized by corresponding arrows) and then the edge portions 50 along its entire extent to form a closed cavity in which the piece of material 44 is received, preferably cohesively connected to each other. After step F, the cooling of the finished molded battery housing part takes place in step G.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
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- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110052513 DE102011052513A1 (de) | 2011-08-09 | 2011-08-09 | Batteriegehäuseteil zur Aufnahme einer Traktionsbatterie eines Elektrofahrzeugs und Verfahren zur Herstellung des Batteriegehäuseteils |
| PCT/EP2012/003407 WO2013020707A2 (de) | 2011-08-09 | 2012-08-09 | Batteriegehäuseteil zur aufnahme einer traktionsbatterie eines elektrofahrzeugs und verfahren zur herstellung des batteriegehäuseteils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2742558A2 true EP2742558A2 (de) | 2014-06-18 |
Family
ID=46845665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12758749.1A Withdrawn EP2742558A2 (de) | 2011-08-09 | 2012-08-09 | Batteriegehäuseteil zur aufnahme einer traktionsbatterie eines elektrofahrzeugs und verfahren zur herstellung des batteriegehäuseteils |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2742558A2 (de) |
| DE (1) | DE102011052513A1 (de) |
| WO (1) | WO2013020707A2 (de) |
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| FR3013515A1 (fr) * | 2013-11-15 | 2015-05-22 | Valeo Systemes Thermiques | Dispositif de refroidissement pour batterie automobile |
| AT515315B1 (de) * | 2014-01-28 | 2015-08-15 | Avl List Gmbh | Batteriemodul |
| DE102014206861A1 (de) * | 2014-04-09 | 2015-10-15 | MAHLE Behr GmbH & Co. KG | Temperiervorrichtung für eine elektrische Energieversorgungseinheit |
| DE102014225532A1 (de) | 2014-12-11 | 2016-06-16 | Mahle International Gmbh | Verfahren zum Herstellen einer Kühlplatte für eine Kühlvorrichtung einer Batterie |
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| CN111703056A (zh) * | 2020-05-13 | 2020-09-25 | 宁波信泰机械有限公司 | 一种复合材料电池包上盖及其制备方法 |
| FR3114916A1 (fr) * | 2020-10-07 | 2022-04-08 | Valeo Systemes Thermiques | Composant pour un module de stockage d’énergie électrique |
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| DE102021210758A1 (de) * | 2021-09-27 | 2023-03-30 | Kautex Textron Gmbh & Co. Kg | Batterieschale aus Kunststoff aufweisend eine Formmasse und einen endlosfaserverstärkten Einleger, Werkzeug sowie Verfahren zum Herstellen einer Batterieschale, Traktionsbatterie und Kraftfahrzeug |
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| JP5147373B2 (ja) * | 2007-11-29 | 2013-02-20 | 三洋電機株式会社 | バッテリシステム |
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-
2011
- 2011-08-09 DE DE201110052513 patent/DE102011052513A1/de not_active Withdrawn
-
2012
- 2012-08-09 EP EP12758749.1A patent/EP2742558A2/de not_active Withdrawn
- 2012-08-09 WO PCT/EP2012/003407 patent/WO2013020707A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
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| See references of WO2013020707A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011052513A1 (de) | 2013-02-14 |
| WO2013020707A2 (de) | 2013-02-14 |
| WO2013020707A3 (de) | 2013-07-25 |
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