WO2008106949A2 - Housing for accommodating a power storage cell - Google Patents
Housing for accommodating a power storage cell Download PDFInfo
- Publication number
- WO2008106949A2 WO2008106949A2 PCT/DE2008/000379 DE2008000379W WO2008106949A2 WO 2008106949 A2 WO2008106949 A2 WO 2008106949A2 DE 2008000379 W DE2008000379 W DE 2008000379W WO 2008106949 A2 WO2008106949 A2 WO 2008106949A2
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- WO
- WIPO (PCT)
- Prior art keywords
- housing
- storage cell
- energy storage
- current conductors
- region
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Classifications
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular 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
- H01M10/61—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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
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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
- H01M10/6554—Rods or plates
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
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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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
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- 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 invention relates to a housing for receiving an energy storage cell with a flexible shell.
- Hybrid and electric vehicles require large amounts of electrical energy to operate an electric machine.
- energy storage preferably nickel-metal hydride or lithium ion cells are used.
- lithium ion cell design is in the form of a prismatic softpack.
- the cell is enclosed by a flexible shell.
- aluminum composite film is used as the material for the flexible shell.
- the sheath is circumferentially welded around the area of the cathode, separator, anode layers and the inner Zellabieiter. At the inner cell arrester, the riveting of the outer metallic current conductor takes place.
- the outer metallic current conductors are made of copper, for example.
- Object of the present invention is to improve the rigidity of an energy storage cell with a flexible shell.
- the housing for receiving the energy storage cell with a flexible shell is made of a material with respect to the shell of higher rigidity.
- the material for the housing is preferably to use plastic. But it can also be used metal. In this case, ensure sufficient electrical insulation between the current conductors and the metal housing.
- the housing has a window opening on one surface side. This ensures that the dynamically operating energy storage cell has the ability to "breathe” when placed in the housing. "Breathing” refers to volume increases and decreases in the interior of the energy storage cell and concomitant movements of the flexible envelope.
- the housing has two openings through which the current conductors of the energy storage cell are derived. The electrical contacting of each current arrester takes place outside the housing.
- the advantage of such a housing is the increased mechanical stability of a single energy storage cell.
- the energy storage cell is in the housing as a pluggable module.
- the arrangement of the energy storage cell in the housing it can be positioned as a compact unit and attached, for example, in an energy storage.
- Several energy storage cells with housing can be arranged well next to each other or on each other. Forces acting on the current conductors are partially absorbed by the housing.
- An existing plastic housing has the advantage that the current conductors are electrically isolated within the housing, and the advantage of weight savings over a metal housing.
- a metal housing offers the advantage that it acts as a heat dissipator. The security of an energy storage cell with a flexible envelope is increased by the housing.
- the housing comprises a heat dissipator in the form of a cooling plate.
- a heat dissipator in the form of a cooling plate.
- the heat sink Through the heat sink, the heat is dissipated from the energy storage cell.
- the heat sink increases the rigidity of a plastic housing.
- one surface side of the flexible shell of the energy storage cell can be adhesively bonded to the cooling plate by means of a thermally conductive adhesive bond.
- the energy storage cell is glued to the bottom of the metal housing accordingly.
- the connection of the energy storage cell to the cooling plate or to the metal housing can preferably take place via a double-sided adhesive heat-conducting foil.
- the adhesive bond also increases the stability of the module energy storage cell and housing and ensures reliable positioning of the energy storage cell in the housing.
- the current conductor of the energy storage cell in the region of the housing with an electrically insulating material potted.
- Such materials are preferably technical waxes, potting resins or silicone.
- this coating is designed as a seal crack resistant. The advantage lies in the direct electrical insulation of the current conductor.
- the encapsulation also offers a significantly increased protection of the current collector from corrosion or oxidation.
- the current conductors of the energy storage cell in the region of the housing for the purpose of electrical insulation of insulating caps are surrounded by a non-conductive material.
- the current conductors of the energy storage cell are double insulated by insulating potting material and insulating caps in the region of the housing.
- the insulating caps can be made of plastic. The advantage lies in the electrical insulation of the current conductors and a mechanical stiffening of the connection area between cell body and current conductor. The insulating caps contribute to the defined positioning of the energy storage cell in the housing.
- electrically insulating plastic clips with a hinge and at least one snap hook are fastened to the current conductors in the region of the housing for the purpose of electrical insulation.
- the current conductors of the energy storage cell are double insulated by insulating potting material and insulating plastic clips in the region of the housing.
- the plastic clips comprise a hinge, preferably a film hinge. The plastic clips are clamped over the current collector and closed with snap hooks. The advantage lies in a complete electrical insulation of the electric current collector in the area of the housing. The connection area between cell body and current conductor is mechanically stiffened.
- the plastic clips are preferably dimensioned so that they press the energy storage cell to the bottom of the housing when closing the housing and thus relieve an adhesive bond between energy storage cell and housing bottom or heat sink. Forces acting on the current conductors are partly absorbed by the housing and not exclusively by the adhesive bond.
- the housing may, according to a preferred construction, consist of two parts: a bottom and a lid with the window opening. Bottom and lid are connected by a hinge and are closed by snap hooks.
- the advantage is that the possibly electrically insulated energy storage cell can be inserted very quickly and cost-saving in the housing or glued to the floor.
- the closure of lid and bottom is done quickly and easily with snap hooks.
- Fig. 1 shows an energy storage cell with a flexible
- Fig. 2 shows a plastic clip with hinge.
- FIG 3 shows an energy storage cell with plastic clips mounted on both sides.
- Fig. 4 shows a two-part housing for receiving a
- Fig. 5 shows a housing with inserted
- FIG. 6 shows a closed housing with inlaid
- Fig. 7 shows a closure of the housing by means
- the energy storage cell (1) shown in Fig. 1 has a flexible sheath (3), on the welded ends of two metallic current conductors (2) are mounted.
- Case (3) encloses cathode, separator and
- Fig. 2 shows a clip made of plastic (4), which is closed by a current collector for the purpose of electrical insulation by means of a hinge (5), shown here as a film hinge, and a snap-action hook.
- Fig. 3 shows an energy storage cell (1), the current conductor (2) are each enclosed by a plastic clip (4).
- the current conductor (2) of the energy storage cell (1) can be additionally cast in the region of the housing before attaching the plastic clips (4) with an electrically insulating material.
- the plastic clips lead to a mechanical reinforcement in the connection area between cell body and current conductor (2) and are used for electrical insulation of the current conductor.
- the housing (6) made of a material with respect to the shell (3) of the energy storage cell (1) of higher rigidity is shown.
- the housing (6) comprises a lid (9) with a window opening (7) and a bottom (10). Lid (9) and bottom (10) are connected by a hinge (8) and can be closed by snap hook (11).
- a cooling plate (12) is in the embodiment shown the bottom part (10) attached. Through the cooling plate (12), the heat is dissipated from the energy storage cell.
- FIG. 5 shows the opened housing (6) from FIG. 4, in which an energy storage cell has been inserted whose current conductors (2) are electrically insulated by plastic clips (4) in the region of the housing.
- the current conductors (2) are guided with the free ends, which are not completely insulated, through two openings provided for this purpose of the housing (6) out of the housing.
- the flexible sheath (3) on the underside of the energy storage cell comes to lie on the cooling plate (12) shown in Fig. 4 and can be fixed by means of a thermally conductive adhesive device on the heat sink.
- Fig. 7 shows the closure of the housing (6) by means of snap hook (11).
- the snap hooks are used for fast but reliable closing of the housing (6) after inserting the energy storage cell (1) with flexible sheath (3).
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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)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Temic Automotive Electric Motors GmbH Sickingenstraße 29-38, 10553 Berlin Temic Automotive Electric Motors GmbH Sickingenstrasse 29-38, 10553 Berlin
Gehäuse zur Aufnahme einer EnergiespeicherzelleHousing for receiving an energy storage cell
Die Erfindung betrifft ein Gehäuse zur Aufnahme einer Energiespeicherzelle mit einer flexiblen Hülle.The invention relates to a housing for receiving an energy storage cell with a flexible shell.
Hybrid- und Elektrofahrzeuge benötigen große Mengen elektrischer Energie, um eine elektrische Maschine betreiben zu können. Als Energiespeicher werden hierbei vorzugsweise Nickel -Metallhydrid- oder Lithium- Ionen-Zellen eingesetzt. Eine Möglichkeit der Ausführung bei Lithium-Ionen-Zellen besteht in Form eines prismatischen Softpacks . Die Zelle ist umschlossen von einer flexiblen Hülle. Insbesondere Aluminiumverbundfolie kommt als Material für die flexible Hülle zum Einsatz. Die Hülle ist um den Bereich der Kathoden-, Separator-, Anodenschichten sowie der inneren Zellabieiter umlaufend verschweißt. An die inneren Zellableiter erfolgt die Nietung der äußeren metallischen Stromableiter. Die äußeren metallischen Stromableiter sind beispielsweise aus Kupfer.Hybrid and electric vehicles require large amounts of electrical energy to operate an electric machine. As energy storage here preferably nickel-metal hydride or lithium ion cells are used. One option for lithium ion cell design is in the form of a prismatic softpack. The cell is enclosed by a flexible shell. In particular, aluminum composite film is used as the material for the flexible shell. The sheath is circumferentially welded around the area of the cathode, separator, anode layers and the inner Zellabieiter. At the inner cell arrester, the riveting of the outer metallic current conductor takes place. The outer metallic current conductors are made of copper, for example.
Aufgabe der vorliegenden Erfindung ist die Verbesserung der Steifigkeit einer Energiespeicherzelle mit einer flexiblen Hülle.Object of the present invention is to improve the rigidity of an energy storage cell with a flexible shell.
Die Aufgabe wird durch ein Gehäuse mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung ergeben sind aus den Unteransprüchen, wobei auch Kombinationen und Weiterbildungen einzelner Merkmale miteinander denkbar sind. Das Gehäuse zur Aufnahme der Energiespeicherzelle mit einer flexiblen Hülle besteht aus einem Material mit gegenüber der Hülle höherer Steifigkeit. Als Material für das Gehäuse ist vorzugsweise Kunststoff zu verwenden. Es kann aber auch Metall verwendet werden. In diesem Fall ist für eine ausreichende elektrische Isolierung zwischen den Stromableitern und dem Metallgehäuse Sorge zu tragen. Das Gehäuse weist auf einer Flächenseite eine Fensteröffnung auf. Hierdurch wird sichergestellt, dass die dynamisch arbeitende Energiespeicherzelle die Möglichkeit hat, zu „atmen", wenn sie im Gehäuse angeordnet ist. Unter „Atmen" versteht man Volumenvergrößerungen und -Verkleinerungen des Inneren der Energiespeicherzelle und damit einhergehende Bewegungen der flexiblen Hülle. Das Gehäuse weist zwei Öffnungen auf, durch welche die Stromableiter der Energiespeicherzelle abgeleitet werden. Die elektrische Kontaktierung eines jeden Stromableiters erfolgt außerhalb des Gehäuses .The object is achieved by a housing having the features of claim 1. Advantageous developments of the invention will become apparent from the dependent claims, wherein combinations and developments of individual features are conceivable with each other. The housing for receiving the energy storage cell with a flexible shell is made of a material with respect to the shell of higher rigidity. As the material for the housing is preferably to use plastic. But it can also be used metal. In this case, ensure sufficient electrical insulation between the current conductors and the metal housing. The housing has a window opening on one surface side. This ensures that the dynamically operating energy storage cell has the ability to "breathe" when placed in the housing. "Breathing" refers to volume increases and decreases in the interior of the energy storage cell and concomitant movements of the flexible envelope. The housing has two openings through which the current conductors of the energy storage cell are derived. The electrical contacting of each current arrester takes place outside the housing.
Der Vorteil eines solchen Gehäuses liegt in der erhöhten mechanischen Stabilität einer einzelnen Energiespeicherzelle. Die Energiespeicherzelle liegt im Gehäuse als steckbares Modul vor. Durch die Anordnung der Energiespeicherzelle im Gehäuse kann sie als kompakte Einheit positioniert und beispielsweise in einem Energiespeicher befestigt werden. Mehrere Energiespeicherzellen mit Gehäuse lassen sich gut nebeneinander oder aufeinander anordnen. Kräfte, die auf die Stromableiter wirken, werden teilweise vom Gehäuse aufgenommen .The advantage of such a housing is the increased mechanical stability of a single energy storage cell. The energy storage cell is in the housing as a pluggable module. The arrangement of the energy storage cell in the housing, it can be positioned as a compact unit and attached, for example, in an energy storage. Several energy storage cells with housing can be arranged well next to each other or on each other. Forces acting on the current conductors are partially absorbed by the housing.
Ein aus Kunststoff bestehendes Gehäuse bietet den Vorteil, dass die Stromableiter innerhalb des Gehäuses elektrisch isoliert sind, und den Vorteil der Gewichtseinsparung gegenüber einem Metallgehäuse. Ein Metallgehäuse bietet hingegen den Vorteil, dass es als Wärmeabieiter fungiert. Die Sicherheit einer Energiespeicherzelle mit flexibler Hülle wird durch das Gehäuse erhöht .An existing plastic housing has the advantage that the current conductors are electrically isolated within the housing, and the advantage of weight savings over a metal housing. On the other hand, a metal housing offers the advantage that it acts as a heat dissipator. The security of an energy storage cell with a flexible envelope is increased by the housing.
Die hohen elektrischen Leistungen, die beim Betrieb von Hybrid- bzw. Elektrofahrzeugen abgerufen werden, führen zu einem starken Temperaturanstieg in den Energiespeicherzellen. Deshalb umfasst das Gehäuse in einer vorteilhaften Ausführungsform einen Wärmeabieiter in Form eines Kühlbleches. Diese Ausführungsform ist besonders vorteilhaft bei einem Gehäuse aus Kunststoff. Durch das Kühlblech wird die Wärme aus der Energiespeicherzelle abgeleitet. Zudem erhöht das Kühlblech die Steifigkeit eines Gehäuses aus Kunststoff.The high electrical power that is called in the operation of hybrid or electric vehicles, lead to a sharp increase in temperature in the energy storage cells. Therefore, in an advantageous embodiment, the housing comprises a heat dissipator in the form of a cooling plate. This embodiment is particularly advantageous in a plastic housing. Through the heat sink, the heat is dissipated from the energy storage cell. In addition, the heat sink increases the rigidity of a plastic housing.
Zur optimalen thermischen Kopplung einer Energiespeicherzelle an eine Kühlplatte kann in einer vorteilhaften Ausführungsform eine Flächenseite der flexiblen Hülle der Energiespeicherzelle mittels einer wärmeleitfähigen Klebeverbindung auf das Kühlblech geklebt werden. Bei einem Metallgehäuse wird die Energiespeicherzelle entsprechend auf den Boden des Metallgehäuses geklebt. Die Anbindung der Energiespeicherzelle an das Kühlblech oder an das Metallgehäuse kann vorzugsweise über eine doppelseitig klebende Wärmeleitfolie erfolgen. Durch diese Ausgestaltung wird die Wärmeableitung aus der Energiespeicherzelle erhöht. Die KlebeVerbindung erhöht zudem die Stabilität des Moduls Energiespeicherzelle und Gehäuse und sorgt für eine zuverlässige Positionierung der Energiespeicherzelle im Gehäuse .For optimum thermal coupling of an energy storage cell to a cooling plate, in one advantageous embodiment, one surface side of the flexible shell of the energy storage cell can be adhesively bonded to the cooling plate by means of a thermally conductive adhesive bond. In a metal housing, the energy storage cell is glued to the bottom of the metal housing accordingly. The connection of the energy storage cell to the cooling plate or to the metal housing can preferably take place via a double-sided adhesive heat-conducting foil. By this embodiment, the heat dissipation from the energy storage cell is increased. The adhesive bond also increases the stability of the module energy storage cell and housing and ensures reliable positioning of the energy storage cell in the housing.
Insbesondere wenn ein Metallgehäuse zur Aufnahme einer Energiespeicherzelle verwendet wird, muss eine ausreichende elektrische Isolierung zwischen den Stromableitern und dem Metallgehäuse sichergestellt sein. In einer vorteilhaften Ausführungsform sind die Stromableiter der Energiespeicherzelle im Bereich des Gehäuses mit einem elektrisch isolierenden Material vergossen. Derartige Materialien sind vorzugsweise technische Wachse, Vergussharze oder Silikon. Vorzugsweise wird dieser Überzug als Versiegelung rissfest ausgeführt. Der Vorteil liegt in der direkten elektrischen Isolierung der Stromableiter. Der Verguss bietet zudem einen deutlich erhöhten Schutz der Stromableiter vor Korrosion bzw. Oxidation.In particular, when a metal housing is used to receive an energy storage cell, sufficient electrical insulation must be ensured between the current conductors and the metal housing. In an advantageous Embodiment, the current conductor of the energy storage cell in the region of the housing with an electrically insulating material potted. Such materials are preferably technical waxes, potting resins or silicone. Preferably, this coating is designed as a seal crack resistant. The advantage lies in the direct electrical insulation of the current conductor. The encapsulation also offers a significantly increased protection of the current collector from corrosion or oxidation.
In einer weiteren vorteilhaften Ausführungsform sind die Stromableiter der Energiespeicherzelle im Bereich des Gehäuses zum Zweck der elektrischen Isolierung von Isolierkappen aus einem nichtleitenden Material umgeben. Vorzugsweise sind die Stromableiter der Energiespeicherzelle doppelt isoliert durch isolierendes Vergussmaterial und Isolierkappen im Bereich des Gehäuses. Die Isolierkappen können aus Kunststoff bestehen. Der Vorteil liegt in der elektrischen Isolation der Stromableiter und einer mechanischen Versteifung des Anschlussbereichs zwischen Zellkörper und Stromableiter. Die Isolierkappen tragen zur definierten Positionierung der Energiespeicherzelle im Gehäuse bei .In a further advantageous embodiment, the current conductors of the energy storage cell in the region of the housing for the purpose of electrical insulation of insulating caps are surrounded by a non-conductive material. Preferably, the current conductors of the energy storage cell are double insulated by insulating potting material and insulating caps in the region of the housing. The insulating caps can be made of plastic. The advantage lies in the electrical insulation of the current conductors and a mechanical stiffening of the connection area between cell body and current conductor. The insulating caps contribute to the defined positioning of the energy storage cell in the housing.
In einer weiteren vorteilhaften Ausführungsform sind elektrisch isolierende Kunststoffclips mit einem Scharnier und mindestens einem Schnapphaken zum Zweck der elektrischen Isolierung an den Stromableitern im Bereich des Gehäuses befestigt. Vorzugsweise sind die Stromableiter der Energiespeicherzelle doppelt isoliert durch isolierendes Vergussmaterial und isolierende Kunststoffclips im Bereich des Gehäuses. Die Kunststoffclips umfassen ein Scharnier, vorzugsweise ein Filmscharnier. Die Kunststoffclips werden über die Stromableiter geklemmt und mit Schnapphaken verschlossen. Der Vorteil liegt in einer vollständigen elektrischen Isolierung der elektrischen Stromableiter im Bereich des Gehäuses. Der Anschlussbereich zwischen Zellkörper und Stromableiter wird mechanisch versteift. Die Kunststoffclips werden vorzugsweise so dimensioniert, dass sie beim Schließen des Gehäuses die Energiespeicherzelle auf den Boden des Gehäuses drücken und so eine KlebeVerbindung zwischen Energiespeicherzelle und Gehäuseboden oder Kühlblech entlasten. Auf die Stromableiter wirkende Kräfte werden teilweise vom Gehäuse und nicht mehr ausschließlich von der KlebeVerbindung aufgenommen.In a further advantageous embodiment, electrically insulating plastic clips with a hinge and at least one snap hook are fastened to the current conductors in the region of the housing for the purpose of electrical insulation. Preferably, the current conductors of the energy storage cell are double insulated by insulating potting material and insulating plastic clips in the region of the housing. The plastic clips comprise a hinge, preferably a film hinge. The plastic clips are clamped over the current collector and closed with snap hooks. The advantage lies in a complete electrical insulation of the electric current collector in the area of the housing. The connection area between cell body and current conductor is mechanically stiffened. The plastic clips are preferably dimensioned so that they press the energy storage cell to the bottom of the housing when closing the housing and thus relieve an adhesive bond between energy storage cell and housing bottom or heat sink. Forces acting on the current conductors are partly absorbed by the housing and not exclusively by the adhesive bond.
Das Gehäuse kann entsprechend einer bevorzugten Konstruktionsweise aus zwei Teilen bestehen: einem Boden und einem Deckel mit der Fensteröffnung. Boden und Deckel sind durch ein Scharnier verbunden und werden mittels Schnapphaken verschlossen. Der Vorteil liegt darin, dass die gegebenenfalls elektrisch isolierte Energiespeicherzelle sehr schnell und kostensparend in das Gehäuse eingelegt bzw. auf den Boden geklebt werden kann. Auch der Verschluss von Deckel und Boden erfolgt schnell und leicht mit Schnapphaken .The housing may, according to a preferred construction, consist of two parts: a bottom and a lid with the window opening. Bottom and lid are connected by a hinge and are closed by snap hooks. The advantage is that the possibly electrically insulated energy storage cell can be inserted very quickly and cost-saving in the housing or glued to the floor. The closure of lid and bottom is done quickly and easily with snap hooks.
Im Folgenden werden Ausführungsbeispiele der Erfindung anhand von Zeichnungen näher erläutert.Embodiments of the invention are explained in more detail below with reference to drawings.
Fig. 1 zeigt eine Energiespeicherzelle mit einer flexiblenFig. 1 shows an energy storage cell with a flexible
Hülle und zwei Stromableitern.Case and two current conductors.
Fig. 2 zeigt einen Kunststoffclip mit Scharnier.Fig. 2 shows a plastic clip with hinge.
Fig. 3 zeigt eine Energiespeicherzelle mit beidseitig montierten Kunststoffclips .3 shows an energy storage cell with plastic clips mounted on both sides.
Fig. 4 zeigt ein zweiteiliges Gehäuse zur Aufnahme einerFig. 4 shows a two-part housing for receiving a
Energiespeicherzelle .Energy storage cell.
Fig. 5 zeigt ein Gehäuse mit eingelegterFig. 5 shows a housing with inserted
Energiespeicherzelle . Fig. 6 zeigt ein geschlossenes Gehäuse mit eingelegterEnergy storage cell. Fig. 6 shows a closed housing with inlaid
Energiespeicherzelle .Energy storage cell.
Fig. 7 zeigt einen Verschluss des Gehäuses mittelsFig. 7 shows a closure of the housing by means
Schnapphaken.Snap hook.
Die in Fig. 1 gezeigte Energiespeicherzelle (1) verfügt über eine flexible Hülle (3) , auf deren verschweißten Enden zwei metallische Stromableiter (2) angebracht sind. Die flexibleThe energy storage cell (1) shown in Fig. 1 has a flexible sheath (3), on the welded ends of two metallic current conductors (2) are mounted. The flexible
Hülle (3) umschließt Kathoden-, Separator- undCase (3) encloses cathode, separator and
Anodenschichten sowie das Elektrolytmaterial . An den metallischen Stromableitern wird die Spannung abgegriffen.Anode layers and the electrolyte material. At the metallic current conductors, the voltage is tapped.
Fig. 2 zeigt einen Clip aus Kunststoff (4), der zum Zweck der elektrischen Isolierung mittels eines Scharniers (5) , hier dargestellt als Filmscharnier, und eines Schnapphakens um einen Stromableiter geschlossen wird.Fig. 2 shows a clip made of plastic (4), which is closed by a current collector for the purpose of electrical insulation by means of a hinge (5), shown here as a film hinge, and a snap-action hook.
Fig. 3 zeigt eine Energiespeicherzelle (1) , deren Stromableiter (2) jeweils von einem Kunststoffclip (4) umschlossen sind. Die Stromableiter (2) der Energiespeicherzelle (1) können zusätzlich im Bereich des Gehäuses vor dem Anbringen der Kunststoffclips (4) mit einem elektrisch isolierenden Material vergossen werden. Die Kunststoffclips führen zu einer mechanischen Verstärkung im Anschlussbereich zwischen Zellkörper und Stromableiter (2) und dienen der elektrischen Isolation der Stromableiter.Fig. 3 shows an energy storage cell (1), the current conductor (2) are each enclosed by a plastic clip (4). The current conductor (2) of the energy storage cell (1) can be additionally cast in the region of the housing before attaching the plastic clips (4) with an electrically insulating material. The plastic clips lead to a mechanical reinforcement in the connection area between cell body and current conductor (2) and are used for electrical insulation of the current conductor.
In Fig. 4 ist das Gehäuse (6) aus einem Material mit gegenüber der Hülle (3) der Energiespeicherzelle (1) höherer Steifigkeit dargestellt. In der dargestellten Ausführungsform umfasst das Gehäuse (6) einen Deckel (9) mit einer Fensteröffnung (7) und einen Boden (10) . Deckel (9) und Boden (10) sind durch ein Scharnier (8) verbunden und können mittels Schnapphaken (11) verschlossen werden. Ein Kühlblech (12) ist in dem gezeigten Ausführungsbeispiel auf dem Bodenteil (10) angebracht. Durch das Kühlblech (12) wird die Wärme aus der Energiespeicherzelle abgeleitet.In Fig. 4, the housing (6) made of a material with respect to the shell (3) of the energy storage cell (1) of higher rigidity is shown. In the illustrated embodiment, the housing (6) comprises a lid (9) with a window opening (7) and a bottom (10). Lid (9) and bottom (10) are connected by a hinge (8) and can be closed by snap hook (11). A cooling plate (12) is in the embodiment shown the bottom part (10) attached. Through the cooling plate (12), the heat is dissipated from the energy storage cell.
Fig. 5 zeigt das geöffnete Gehäuse (6) aus Fig. 4, in das eine Energiespeicherzelle eingelegt wurde, deren Stromableiter (2) durch Kunstoffclips (4) im Bereich des Gehäuses elektrisch isoliert sind. Die Stromableiter (2) werden mit den freien Enden, die nicht vollständig isoliert sind, durch zwei dafür vorgesehene Öffnungen des Gehäuses (6) aus dem Gehäuse geführt. Die flexible Hülle (3) an der Unterseite der Energiespeicherzelle kommt auf dem in Fig. 4 gezeigten Kühlblech (12) zu liegen und kann mittels einer wärmeleitfähigen Klebevorrichtung auf dem Kühlblech befestigt werden. Durch die Anordnung der Energiespeicherzelle (1) im Gehäuse (6) wird die Energiespeicherzelle mechanisch stabilisiert und elektrisch in den Bereichen isoliert, die nicht der Kontaktierung dienen.FIG. 5 shows the opened housing (6) from FIG. 4, in which an energy storage cell has been inserted whose current conductors (2) are electrically insulated by plastic clips (4) in the region of the housing. The current conductors (2) are guided with the free ends, which are not completely insulated, through two openings provided for this purpose of the housing (6) out of the housing. The flexible sheath (3) on the underside of the energy storage cell comes to lie on the cooling plate (12) shown in Fig. 4 and can be fixed by means of a thermally conductive adhesive device on the heat sink. By arranging the energy storage cell (1) in the housing (6), the energy storage cell is mechanically stabilized and electrically isolated in the areas that do not serve the contact.
In der in Fig. 6 gezeigten Darstellung des geschlossenen Gehäuses (6) mit eingelegter Energiespeicherzelle (1) erkennt man, dass die flexible Hülle (3) an der Oberseite der Energiespeicherzelle (1) durch die Fensteröffnung (7) des Deckels (9) des Gehäuses (6) tritt. Hierdurch ist die Möglichkeit des „Atmens" der Energiespeicherzelle (1) gegeben. An allen Stellen, an denen die Stromableiter (2) der Energiespeicherzelle das Gehäuse (6) berühren könnten, sind die Stromableiter durch Kunststoffclips (4) elektrisch isoliert .In the illustration of the closed housing (6) with inserted energy storage cell (1) shown in FIG. 6, it can be seen that the flexible envelope (3) at the top of the energy storage cell (1) through the window opening (7) of the lid (9) of Housing (6) occurs. This provides the possibility of "breathing" the energy storage cell 1. At all points where the current conductors (2) of the energy storage cell could touch the housing (6), the current conductors are electrically insulated by plastic clips (4).
Fig. 7 zeigt den Verschluss des Gehäuses (6) mittels Schnapphaken (11) . Die Schnapphaken dienen dem schnellen aber zuverlässigen Verschließen des Gehäuses (6) nach dem Einlegen der Energiespeicherzelle (1) mit flexibler Hülle (3) . BezugszeichenlisteFig. 7 shows the closure of the housing (6) by means of snap hook (11). The snap hooks are used for fast but reliable closing of the housing (6) after inserting the energy storage cell (1) with flexible sheath (3). LIST OF REFERENCE NUMBERS
Energiespeicherzelle Stromableiter Flexible Hülle Kunststoffclip Scharnier Gehäuse Fensteröffnung Scharnier des Gehäuses Deckel Boden Schnapphaken Kühlblech Energy storage cell Current collector Flexible sheath Plastic clip Hinge Housing Window opening Hinge of housing Cover Ground Snap hook Heatsink
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200811001214 DE112008001214A5 (en) | 2007-03-05 | 2008-03-05 | Housing for receiving a energy storage cell |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007011862.9 | 2007-03-05 | ||
| DE102007011862 | 2007-03-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2008106949A2 true WO2008106949A2 (en) | 2008-09-12 |
| WO2008106949A3 WO2008106949A3 (en) | 2008-11-06 |
Family
ID=39684082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2008/000379 Ceased WO2008106949A2 (en) | 2007-03-05 | 2008-03-05 | Housing for accommodating a power storage cell |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE112008001214A5 (en) |
| WO (1) | WO2008106949A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010036686A1 (en) * | 2010-07-28 | 2012-02-02 | Hoppecke Advanced Battery Technology Gmbh | Device for receiving a galvanic element, energy storage unit and energy storage stack |
| DE102012215446A1 (en) * | 2012-08-31 | 2014-03-06 | Continental Automotive Gmbh | Storage cell for energy storage unit of e.g. hybrid car, has contact region for attaching housing to cooling element, and insulation layer applied outside housing in sections of connection region supplementary to contact region |
| WO2014173830A1 (en) * | 2013-04-25 | 2014-10-30 | Behr Gmbh & Co. Kg | Fastening device for a heat sink on a galvanic cell and a method for fastening a heat sink on a galvanic cell |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003109667A (en) * | 2001-09-28 | 2003-04-11 | Mitsubishi Electric Corp | Non-aqueous electrolyte battery and method of manufacturing the same |
| JP4775555B2 (en) * | 2003-08-08 | 2011-09-21 | 日本電気株式会社 | Film-clad battery and manufacturing method thereof |
| JP4635483B2 (en) * | 2003-09-29 | 2011-02-23 | 日産自動車株式会社 | Battery storage case, battery module, and assembled battery |
| KR101042132B1 (en) * | 2005-03-23 | 2011-06-16 | 에스케이이노베이션 주식회사 | Case for high output lithium secondary battery |
-
2008
- 2008-03-05 WO PCT/DE2008/000379 patent/WO2008106949A2/en not_active Ceased
- 2008-03-05 DE DE200811001214 patent/DE112008001214A5/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010036686A1 (en) * | 2010-07-28 | 2012-02-02 | Hoppecke Advanced Battery Technology Gmbh | Device for receiving a galvanic element, energy storage unit and energy storage stack |
| DE102010036686B4 (en) | 2010-07-28 | 2020-05-28 | Intilion Gmbh | Device for receiving a galvanic element, energy storage unit and energy storage stack |
| DE102012215446A1 (en) * | 2012-08-31 | 2014-03-06 | Continental Automotive Gmbh | Storage cell for energy storage unit of e.g. hybrid car, has contact region for attaching housing to cooling element, and insulation layer applied outside housing in sections of connection region supplementary to contact region |
| DE102012215446B4 (en) | 2012-08-31 | 2022-12-08 | Vitesco Technologies GmbH | Storage cell for an energy store, method for producing a storage cell and energy store for a hybrid or electric vehicle |
| WO2014173830A1 (en) * | 2013-04-25 | 2014-10-30 | Behr Gmbh & Co. Kg | Fastening device for a heat sink on a galvanic cell and a method for fastening a heat sink on a galvanic cell |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008106949A3 (en) | 2008-11-06 |
| DE112008001214A5 (en) | 2010-02-04 |
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