EP2465151A1 - Procédé de fabrication d'un dispositif accumulateur d'énergie pour un véhicule - Google Patents

Procédé de fabrication d'un dispositif accumulateur d'énergie pour un véhicule

Info

Publication number
EP2465151A1
EP2465151A1 EP10742807A EP10742807A EP2465151A1 EP 2465151 A1 EP2465151 A1 EP 2465151A1 EP 10742807 A EP10742807 A EP 10742807A EP 10742807 A EP10742807 A EP 10742807A EP 2465151 A1 EP2465151 A1 EP 2465151A1
Authority
EP
European Patent Office
Prior art keywords
energy storage
storage unit
electrochemical energy
potting compound
storage device
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Withdrawn
Application number
EP10742807A
Other languages
German (de)
English (en)
Inventor
Markus Kohlberger
Michael Moser
Hans-Georg Herrmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP2465151A1 publication Critical patent/EP2465151A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01M10/62—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
    • H01M10/647—Prismatic or flat cells, e.g. pouch 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/121—Organic material
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • 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
    • 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
    • H01M50/26—Assemblies sealed to each other in a non-detachable manner
    • 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
    • H01M10/6553—Terminals or leads
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making
    • Y10T29/49114—Electric battery cell making including adhesively bonding

Definitions

  • the present invention relates to a method for producing an energy storage device with an electrochemical energy storage unit, which is suitable for driving a vehicle, and a corresponding device.
  • Document EP 2 026 387 A1 relates to an electrochemical energy storage unit which has a plurality of flat lines and a frame.
  • the frame is connected to a flat cell to form a structural unit, for example by gluing or welding.
  • the structure of the mobile phone battery pack is completely unsuitable for use in the automotive sector, since there the cells must provide much more energy, so known to be larger and heavier, cooling is necessary and the occurring forces are greater in operation.
  • the energy storage units in the mobile sector are therefore not designed for use in the automotive sector.
  • the present invention is based on the finding that a positive fixing and mechanical support of the (energy storage) cells (ie the energy storage units) in the cell or battery module can be achieved by a frame for holding the battery module in whole or in part by a directly molded Part is formed.
  • a cell connector rail for connecting a plurality of individual memory cells may already be fixed to the cell. This is possible with both hardcase and cofee bag cells.
  • the positive and / or cohesive extrusion can support the cell uniformly in all directions.
  • the Polyamide-based potting compounds bond very stably with the surface of the cell, which in the case of a coffee-bag cell usually consists of a polyamide layer. Also on metals or other coatings good adhesion of the polyamide can be achieved.
  • the ürnmantel ⁇ ng allows the damping of shocks while driving, is electrically insulating and can protect the cell from possible corrosion.
  • these cooling plates can be encapsulated very easily with a cell cooling mitteis cooling plates.
  • the line can be connected by means of pressure or a previous bond to the heat sink.
  • the cell can now be wrapped in an injection mold with the potting compound. In the subsequent attachment of a frame significantly more complex steps would be required, which would require a precise fit inserting and fixing the cooling plates.
  • the present invention provides a method for producing an energy storage device for at least one electrochemical energy storage unit, the method comprising the steps of providing the at least one electrochemical energy storage unit that is suitable for providing energy for propulsion of a vehicle and at least partially overmolding the at least one electrochemical energy storage device Energy storage unit with a potting compound to produce the energy storage device, wherein in the step of extrusion coating, the at least one electrochemical energy storage unit is positively and / or materially connected to the potting compound.
  • the electrochemical energy storage unit may be a battery or an accumulator that is used to power a hybrid or electric vehicle. In order to be able to appropriately supply the large number of energy storage units required for the drive, these are preferably used as flat cells.
  • Flat tents may be equipped with a solid housing or, as so-called coffee- ⁇ ag cells, in a be packaged ner film, so that they are permanently deformable.
  • the energy storage device may serve to support and maintain one or a plurality of electrochemical energy storage units in a suitable position.
  • the energy storage device may be implemented as a type of wrapper that may be configured to receive one or a plurality of electrochemical energy storage devices.
  • the encapsulation can be carried out in an injection molding process in which, for example, a heated liquid potting compound is applied to the edge surfaces of an electrochemical energy storage unit, which then cools and solidifies.
  • the casting compound can also be applied only to parts of the edge surfaces, for example at the corners of the electrochemical energy storage unit.
  • the potting compound used in the overmolding process may be a polyamide or other thermoplastic polymer characterized by high strength and good chemical resistance and processability.
  • the use of a potting compound as a jacket for the at least one electrochemical energy storage unit offers many advantages.
  • an excellent protection against the ingress of moisture, dust, foreign bodies, water, etc., between the potting compound and the electrochemical energy storage unit (s) can be achieved by the precise connection of the potting compound to the electrochemical energy storage unit.
  • a better electrical insulation of the cell can be realized than e.g. may allow the use of a prefabricated rigid frame.
  • the sheath of potting compound can have a higher vibration and shock resistance than a conventional battery or Akkumulatorrahmen, which is particularly important for use in the automotive sector of great importance.
  • the formschiüssige and / or stoffschiüssige connection between the electrochemical energy storage unit and the potting compound can be given by the fact that after curing of the potting compound this fully or partially summarizes the edge region of the electrochemical energy storage unit.
  • mechanical support or holding of the at least one electrochemical energy storage unit may be formed in the step of extrusion coating. This offers the advantage that in addition to a positioning and fixing of the electrochemical energy storage unit without a further step or cost of materials, a support device for the at least one electrochemical E ⁇ ergie Eat- unit can be created.
  • the at least one electrochemical energy storage unit may be provided with at least one connector element. This can serve for connecting the electrochemical energy storage unit to a further electrochemical energy storage unit.
  • the at least one connector element may be coupled to the at least one electrochemical energy storage unit.
  • the connector element may for example be designed in the form of a rail.
  • the coupling between the connector element and the electrochemical energy storage unit can be realized, for example, by gluing or screwing the connector element onto the energy storage unit. This offers the advantage that the Verbindereiement can be applied to the not yet fixed electrochemical energy storage unit, as this easier compared for applying a connector to an energy storage unit already fitted in a frame. Since the Vergussrnasse is applied in a later step in liquid or at least elastic form, the connector element can be readily taken into the sheath with.
  • the step of providing the at least one electrochemical energy storage unit with at least one cooling element for cooling the electrochemical energy storage unit can be provided.
  • the at least one cooling element may be coupled to the at least one electrochemical energy storage unit.
  • the cooling element may e.g. in the form of a cooling plate.
  • the connection of the cooling element to the electrochemical energy storage unit can be done for example by pressure or also a bond.
  • the present invention further provides an energy storage device comprising: at least one electrochemical energy storage unit adapted to drive a vehicle; and a potting compound, wherein the electrochemical energy storage unit is at least partially covered by the potting compound and is positively and / or materially connected to the potting compound.
  • the at least one electrochemical energy storage unit may have wedge-shaped edges.
  • the wedge-shaped edges can be embedded in the potting compound. This provides the advantage that due to the selected shape of the edges of the electrochemical energy storage unit an improved form-fitting and / or material-locking connection between the hardened potting compound and the electrochemical energy Gie Jeffisme can be realized, since the mechanical interlocking of the two elements is reinforced by the wedge-shaped expression of the edges of the energy storage unit.
  • a wedge shape at the edges of the energy storage unit also offers a large surface, to which the potting compound can bond well materially.
  • the energy storage device may also have at least one second electrochemical energy storage unit.
  • the second electrochemical energy storage unit may also be encompassed by the potting compound or be poured into the potting compound.
  • the potting compound may contain a polyamide.
  • a sheathing for one or more electrochemical energy storage units can be realized, which is inexpensive and easy to work.
  • polyamide has high resistance to mechanical damage and chemical attack and provides very good adhesion to the surface of the energy storage unit.
  • FIG. 1 shows a flowchart of a method for producing an energy storage device, according to an embodiment of the invention
  • FIG. 2 is a plan view of an energy storage device according to an embodiment of the invention
  • FIG. and Fig. 3 is a sectional view of the embodiment of the energy storage device of Fig. 2.
  • the same or similar reference numerals are used for the elements shown in the various drawings and similar, and a repeated description of these elements is omitted becomes. If an exemplary embodiment comprises a "and / or" link between a first feature and a second feature, this can be read so that the embodiment according to an embodiment, both the first feature and the second feature and according to another embodiment either only has first feature or only the second Merkmai.
  • FIG. 1 shows a method 100 for producing an energy storage device for at least one electrochemical energy storage unit, according to an embodiment of the invention.
  • the method 100 includes a step of providing the 110 of the at least one electrochemical energy storage unit. Furthermore, the method 100 comprises a step 120 of the at least partial encapsulation of the at least one electrochemical energy storage unit with a potting compound to produce the energy storage device. As a result of the method 100, the at least one electrochemical energy storage unit is positively and / or materially connected to the potting compound.
  • steps 110 and 120 of method 100 may also be performed in reverse order.
  • the potting compound can be filled into an injection mold and then the at least one electrochemical energy storage unit can be pressed into the still liquid potting compound.
  • FIG. 2 shows a plan view of an exemplary embodiment of an energy storage device 200 according to the invention. Shown are an electrochemical energy storage unit or, in simplified terms, cell 210, a potting compound 220 and two dischargers provided with the same reference numeral 230.
  • the electrochemical energy storage unit 210 is formed as a nearly square-shaped flat cell, of which one of two main surfaces 240 facing the viewer.
  • the flat cell 210 may be formed as a hardcase cell or coffee bag cell.
  • a Mardcase Zelie has a rigid housing, while a coffee bag cell is welded into a flexible film.
  • a use of coffee bag cells, also known as pouch cells, proves to be particularly advantageous in the automotive industry because they are smaller in thickness than conventional cells.
  • the use of coffee bag cells thus results in considerable space savings.
  • coffee bag cells are low in manufacturing and offer a great variety of designs.
  • the entire edge region of the electrochemical energy storage unit 210 is covered by the potting compound 220.
  • the potting compound 220 it is also possible for only parts of the energy storage unit 210, for example the corners of the energy storage unit 210, to be covered by the potting compound 220.
  • the arresters 230 can be used for contacting the energy storage unit 210 to an electrical connection or to a thermal heat dissipation unit. Also a The use of one or more than two arresters is conceivable.
  • the headers 230 are not completely covered by the potting compound 220 so that they can easily be connected to, for example, a heat sink.
  • FIG. 3 shows a cross section through the exemplary embodiment of the energy storage device 200 from FIG. 2. Shown are the cell 210, the potting compound 220 as well as the left drain 230 and the right drain 230.
  • the edges of the electrochemical energy storage unit 210 terminate wedge-shaped. It can be clearly seen that an intense form-fitting connection between the potting compound 220 and the energy storage unit 210 is realized by such pronounced edges of the electrochemical energy storage unit 210. Also, the surface of the energy storage unit 210 is significantly larger than would be the case with a cuboid energy storage unit. The large surface thus has the possibility that a very good and reliable adhesion of the potting compound to the surface of the energy storage unit 210 can be formed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un dispositif accumulateur d'énergie (200) pour au moins une unité électrochimique accumulatrice d'énergie (210). Le procédé comprend les étapes consistant à : fournir (110) ladite au moins une unité électrochimique accumulatrice d'énergie (210) qui est conçue pour fournir de l'énergie pour l'entraînement d'un véhicule ; surmouler par injection (120) au moins partiellement ladite au moins une unité électrochimique accumulatrice d'énergie (210) à l'aide d'une matière à mouler afin de fabriquer le dispositif accumulateur d'énergie (200). Dans l'étape de surmoulage, ladite au moins une unité électrochimique accumulatrice d'énergie (210) est associée à la matière à mouler en formant un assemblage par complémentarité de formes et/ou fusion de matière.
EP10742807A 2009-08-13 2010-08-04 Procédé de fabrication d'un dispositif accumulateur d'énergie pour un véhicule Withdrawn EP2465151A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009037063A DE102009037063A1 (de) 2009-08-13 2009-08-13 Verfahren zum Herstellen einer Energiespeichervorrichtung für ein Fahrzeug
PCT/EP2010/061353 WO2011018399A1 (fr) 2009-08-13 2010-08-04 Procédé de fabrication d'un dispositif accumulateur d'énergie pour un véhicule

Publications (1)

Publication Number Publication Date
EP2465151A1 true EP2465151A1 (fr) 2012-06-20

Family

ID=42732871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10742807A Withdrawn EP2465151A1 (fr) 2009-08-13 2010-08-04 Procédé de fabrication d'un dispositif accumulateur d'énergie pour un véhicule

Country Status (7)

Country Link
US (1) US20120208059A1 (fr)
EP (1) EP2465151A1 (fr)
JP (1) JP2013502029A (fr)
KR (1) KR20120055677A (fr)
CN (1) CN102473867A (fr)
DE (1) DE102009037063A1 (fr)
WO (1) WO2011018399A1 (fr)

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Also Published As

Publication number Publication date
KR20120055677A (ko) 2012-05-31
DE102009037063A1 (de) 2011-02-17
US20120208059A1 (en) 2012-08-16
WO2011018399A1 (fr) 2011-02-17
CN102473867A (zh) 2012-05-23
JP2013502029A (ja) 2013-01-17

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