DE10202807A1 - Temperature control system for high power secondary batteries for motor vehicle use circulates heat transporting fluid through channels around cells - Google Patents

Temperature control system for high power secondary batteries for motor vehicle use circulates heat transporting fluid through channels around cells

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Publication number
DE10202807A1
DE10202807A1 DE2002102807 DE10202807A DE10202807A1 DE 10202807 A1 DE10202807 A1 DE 10202807A1 DE 2002102807 DE2002102807 DE 2002102807 DE 10202807 A DE10202807 A DE 10202807A DE 10202807 A1 DE10202807 A1 DE 10202807A1
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Germany
Prior art keywords
cells
heat
heating
secondary batteries
housing
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Granted
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DE2002102807
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German (de)
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DE10202807B4 (en
Inventor
Bernd Wegner
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Mercedes Benz Group AG
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DaimlerChrysler AG
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Priority to DE2002102807 priority Critical patent/DE10202807B4/en
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Publication of DE10202807B4 publication Critical patent/DE10202807B4/en
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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
    • H01M10/62—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
    • H01M10/63—Control systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6572—Peltier elements or thermoelectric devices
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Secondary Cells (AREA)

Abstract

A device to control the temperature in high power secondary batteries for motor vehicle use comprises a housing (1) containing many electrically interconnected cells (2). The cells have channels through which flows a heat-transporting medium.

Description

Die Erfindung betrifft Hochleistungs-Sekundärbatterien, die aus einer Anzahl einzelner Zellen zusammengeschaltet sind. Insbesondere betrifft die Erfindung Hochleistungs-Sekundärbatterien für Fahrzeuganwendungen. The invention relates to high-performance secondary batteries consisting of a number of individual cells are interconnected. In particular, the invention relates High performance secondary batteries for vehicle applications.

Als elektrische Energiequelle in Elektrostraßenfahrzeugen, Hybridfahrzeugen, aber auch für moderne 42 Volt-Bordnetze finden neue Hochleistungsbatterien z. B. auf der Basis von Nickel- Metallhydrid oder Lithium Einzug. Aufgrund der hohen Leistungsanforderungen sind diese Batterien aus mehreren elektrisch verbundenen Zellen zusammengesetzt. In der kostenoptimierten Ausführung sind dabei die einzelnen Zellen in der Regel als Zylinder gewickelt. As an electrical energy source in electric road vehicles, Hybrid vehicles, but also for modern 42 volt electrical systems new high-performance batteries z. Based on nickel Metal hydride or lithium feeder. Because of the high Performance requirements, these batteries are made of several electrical assembled cells. In the cost-optimized Execution are the individual cells in the rule as Cylinder wrapped.

Bei dem für diese Einsatzbereiche geforderten hohen Lastprofil wird in den Hochleistungsbatterien so viel Verlustwärme generiert, dass eine aktive Batteriekühlung unumgänglich ist. Weiterhin sind die Betriebstemperaturen der genannten Batterien oftmals so eingeschränkt, dass ein zuverlässiger Betrieb bei sehr heißen und kalten Wetterbedingungen ohne zusätzliche Maßnahmen nicht sichergestellt werden kann. For the high load profile required for these applications becomes so much heat loss in the high-performance batteries generated that an active battery cooling is essential. Furthermore, the operating temperatures of said batteries often so limited that a reliable operation at very hot and cold weather conditions without additional Measures can not be ensured.

Herkömmliche Systeme sehen beispielsweise Ventilatoren zur Luftkühlung der Hochleistungsbatterie vor. Eine solche Anordnung ist beispielsweise beschrieben in der Veröffentlichung JP 8185899 A2 (Yamaha Motors Co. Ltd.). Bei dieser Anordnung ist das Batteriegehäuse mit einer Öffnung versehen, an der ein Ventilator angebracht ist. Ein Temperaturfühler mißt im Innern des Batteriegehäuses die Temperatur und regelt den Ventilator entsprechend. Zusätzlich werden Lade- und Entladevorgänge bei dieser Anordnung in Abhängigkeit von der Temperatur ebenfalls reguliert, so dass beispielsweise bei zu hohen Temperaturwerten Ladevorgänge unterbrochen werden. For example, conventional systems use fans Air cooling of the high-performance battery before. Such Arrangement is described for example in the publication JP 8185899 A2 (Yamaha Motors Co. Ltd.). In this arrangement the battery case is provided with an opening at the one Fan is attached. A temperature sensor measures inside the temperature of the battery case and regulates the fan corresponding. In addition, loading and unloading operations are included this arrangement as a function of the temperature also regulated, so that, for example, at too high temperatures Loading operations are interrupted.

Eine derartige Kühlvorrichtung hat den Nachteil, dass über die Ventilatoröffnung des Batteriegehäuses eine unmittelbare Verbindung zur äußeren Umgebung besteht. Such a cooling device has the disadvantage that over the Fan opening of the battery case an immediate Connection to the external environment exists.

Damit ist beispielsweise bei einer witterungsbedingten hohen Luftfeuchtigkeit die Bildung von Kondenswasser im Batterieinnern möglich, was dann in Folge zu Korrosion und zu elektrischen Defekten (Kriechströme usw.) führen kann. Auch ist die Kühlleistung abhängig von der Lufttemperatur der Umgebung, also ebenfalls witterungsabhängig. Bei hoher Außentemperatur kann daher u. U. die Kühlleistung nicht ausreichen, so dass über den Temperaturfühler Ladeprozesse unterbrochen werden. Ein weiteres Problem kann durch die Anordnung der einzelnen Zellen entstehen, da die Luftzirkulation in dem Batteriegehäuse davon beeinflußt wird. Grundsätzlich werden Zellen, die nahe zum Ventilator angeordnet sind, intensiver gekühlt als diejenigen, die weiter entfernt im Gehäuse angebracht sind. This is, for example, at a weather-related high Humidity the formation of condensation in the Battery inside possible, which then in consequence to corrosion and too electrical defects (leakage currents, etc.) can lead. Also is the Cooling capacity depends on the ambient air temperature, ie also weather dependent. At high outside temperature can therefore u. U. the cooling capacity is insufficient, so that over the Temperature sensor charging processes are interrupted. Another one Problem can be caused by the arrangement of individual cells arise because the air circulation in the battery case of it being affected. Basically, cells that are close to Fan are arranged, more intense than those cooled further away are mounted in the housing.

Ausgehend von diesem Stand der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, ein verbessertes System zur Temperaturregelung von Hochleistungs-Sekundärbatterien zu entwickeln, das die genannten Nachteile weitgehend überwindet und weitere Vorteile aufweist. Based on this prior art is the present Invention the task is based, an improved system for Temperature control of high-performance secondary batteries too develop that largely overcomes the mentioned disadvantages and has further advantages.

Diese Aufgabe wird bei einer Vorrichtung mit den Merkmalen des Oberbegriffs des Anspruchs 1 durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Weitere Einzelheiten der Erfindung und Vorzüge verschiedener Ausführungsformen ergeben sich aus den Merkmalen der Unteransprüche. This object is achieved in a device with the features of The preamble of claim 1 by the characterizing features of claim 1. Further details of the invention and Advantages of various embodiments will be apparent from the Features of the dependent claims.

Die Erfindung schlägt vor, dass jede Zelle von einem wärmetransportierendem Medium durchströmt wird und dieses Medium über ein Leitungssystem durch eine außerhalb des Batteriegehäuses angeordnete Heiz-/Kühleinrichtung zirkuliert. The invention proposes that each cell of a heat-transporting medium is flowed through and this medium via a conduit system through an outside of the Battery housing arranged heating / cooling device circulates.

Eine solche erfindungsgemäße Vorrichtung wird im folgenden anhand einer bevorzugten Ausführungsform beschrieben, wobei Bezug genommen wird auf die Figur und die darin aufgeführten Bezugsziffern. Such a device according to the invention is described below described with reference to a preferred embodiment, wherein reference is taken on the figure and the listed therein Reference numerals.

Die Figur zeigt ein Batteriegehäuse (1), in dem sich die - hier zylinderförmigen - Zellen (2) der Hochleistungsbatterie befinden. In den Zellen befinden sich Kanäle, durch die ein wärmetransportierendes Medium strömen kann. Die Ausgänge dieser Kanäle sind über ein Leitungssystem (3) untereinander verbunden. Über Durchführungen (4) wird das Leitungssystem zu einer außerhalb des Gehäuses angebrachten Heiz-/Kühleinrichtung (5) geführt. Zur Steuerung der Leistung der Heiz-/Kühleinrichtung ist ein Regler (6) vorhanden. Dieser Regler kontrolliert mittels eines Temperaturfühlers (7) die Innentemperatur des Batteriegehäuses und regelt entsprechend die Leistung der Heiz-/ Kühleinrichtung sowie angebrachte Lüfter (8) zur Wärmeableitung und Pumpsysteme (9) für eine aktive Zirkulation des wärmetransportierenden Mediums durch das Leitungssystem und die Zellen. Zur Kompensation der bei Temperaturänderung auftretenden Volumenänderung des wärmetransportierenden Mediums ist bei dieser Ausführung ein Ausdehnungsgefäß bzw. Druckausgleicher (10) vorgesehen. The figure shows a battery case ( 1 ), in which are the - here cylindrical - cells ( 2 ) of the high-performance battery. The cells contain channels through which a heat-transporting medium can flow. The outputs of these channels are interconnected via a line system ( 3 ). About ducts ( 4 ), the line system is led to a mounted outside the housing heating / cooling device ( 5 ). To control the performance of the heating / cooling device, a controller ( 6 ) is present. This controller controls by means of a temperature sensor ( 7 ), the internal temperature of the battery case and controls accordingly the performance of the heating / cooling device and mounted fans ( 8 ) for heat dissipation and pumping systems ( 9 ) for an active circulation of the heat-transporting medium through the conduit system and the cells. In order to compensate for the change in volume of the heat-transporting medium occurring when the temperature changes, an expansion vessel or pressure equalizer ( 10 ) is provided in this embodiment.

Die erfindungsgemäße Vorrichtung ermöglicht die Regelung der Temperatur der Batterie bzw. der Zellen. Unter Regelung der Temperatur wird verstanden, daß nicht nur die Abführung von Wärme möglich ist, wie es im Stand der Technik bereits beschrieben wird, sondern auch die Zuführung von Wärme. Letzteres kann insbesondere dann erforderlich sein, wenn die momentane Temperatur der Batterie unter dem Bereich ihrer optimalen Betriebstemperaturen liegt, wie es z. B. der Fall sein kann, wenn die Batterie bei niedrigen Temperaturen in Betrieb genommen wird. Im Bereich der Fahrzeuganwendungen kann das der Fall sein, wenn das Fahrzeug nach einer Stillstandsperiode bei niedrigen Umgebungstemperaturen gestartet wird. Ferner ermöglicht die erfindungsgemäße Vorrichtung auch eine Feineinstellung der Temperatur der Zellen, auf jede mit der Heiz- bzw. Kühleinrichtung erreichbare Temperatur. The device according to the invention enables the regulation of Temperature of the battery or cells. Under regulation of Temperature is understood to be not just the discharge of Heat is possible, as in the prior art already is described, but also the supply of heat. The latter may be particularly necessary if the current Temperature of the battery below the range of its optimal Operating temperatures is, as it is z. B. may be the case if the battery is started up at low temperatures becomes. This can be the case in the field of vehicle applications when the vehicle is after a shutdown period low ambient temperatures is started. Furthermore allows the inventive device also a fine adjustment of Temperature of the cells, on each with the heating or Cooling device achievable temperature.

Wie dargestellt ist das Gehäuse der Batterie in der bevorzugten Ausführung vollständig geschlossen. Bei entsprechender Ausgestaltung der Durchführungen (4) für das Leitungssystem (3) kann das Gehäuse hermetisch abgedichtet werden. Damit ist ausgeschlossen, dass witterungsbedingt Luftfeuchtigkeit eindringen kann. Eine solche Anordnung hat zudem den Vorteil, dass das Gehäuse zusätzlich die Funktion eines Explosionsschutzes übernehmen kann, indem es beispielsweise als verschweißte Konstruktion aus verstärktem Stahlblech ausgeführt ist, die dem Druck einer möglichen Explosion innerhalb der Batterie standhält. Vorteilhaft ist auch die mit einem geschlossenen Gehäuse verbundene Möglichkeit einer allseitigen passiven thermischen Verkleidung der Batterie, so dass die Sekundärzellen gegenüber äußeren Temperaturschwankungen isoliert sind. As shown, the housing of the battery in the preferred embodiment is completely closed. With appropriate design of the bushings ( 4 ) for the line system ( 3 ), the housing can be hermetically sealed. This excludes that weather-related humidity can penetrate. Such an arrangement also has the advantage that the housing can additionally assume the function of an explosion protection, for example by being designed as a welded construction of reinforced sheet steel, which withstands the pressure of a possible explosion within the battery. Also advantageous is the possibility associated with a closed housing of an all-round passive thermal cladding of the battery, so that the secondary cells are insulated from external temperature fluctuations.

Die vorgeschlagene Vorrichtung ermöglicht eine Anordnung der Zellen mit größtmöglicher Packungsdichte, da das wärmetransportierende Medium über vorhandene Kanäle durch das Innere der Zellen hindurch strömt, d. h. eine Kühlung oder Heizung nicht über die Außenflächen der Zellen erfolgt. The proposed device allows an arrangement of Cells with the highest possible packing density, since the heat transporting medium through existing channels through the interior of the Cells through, d. H. no cooling or heating takes place over the outer surfaces of the cells.

Bei zylindrisch geformten Zellen, die typischerweise in gewickelter Bauweise erstellt werden, können die Zellen vorzugsweise zentrale Durchgangsöffnungen im axialen Kern der Wicklung enthalten. Je nach Bauart der Zellen und/oder gewünschter Kühl- bzw. Heizleistung können pro Zelle auch mehrere Kanäle vorhanden sein, so dass ein größerer Wärmeaustausch pro Zeiteinheit erfolgen kann. For cylindrically shaped cells, typically in wound construction can be created, the cells preferably central through openings in the axial core of the winding contain. Depending on the design of the cells and / or desired cooling or heating power can per cell also several channels be present, allowing a greater heat exchange per unit of time can be done.

Als Medium für den Wärmeaustausch/-transport eignen sich sowohl Gase als auch Flüssigkeiten. Vorzugsweise werden reaktionsträge Stoffe eingesetzt, die im Falle einer Explosion einer Zelle oder bei einer Zerstörung der Hochleistungsbatterie (Unfall) keine zusätzliche Gefährdung bedeuten. Der Elektrolyt der Zellen kommt daher nicht in Frage. Stattdessen werden mit Vorteil Stoffe wie beispielsweise Wasser mit Frostschutzmitteln, z. B. Glycol, und Inhibitoren, die Kalkablagerungen verhindern, eingesetzt. Diese Stoffe sind im allgemeinen verhältnismäßig ungefährlich, billig und gut handzuhaben. Letzteres ist insbesondere dann von Vorteil, wenn das Medium für den Wärmeaustausch/- transport ausgetauscht werden soll. As a medium for heat exchange / transport are both Gases as well as liquids. Preferably become inert Substances used in the case of an explosion of a cell or if the high-performance battery is destroyed (accident) no additional danger. The electrolyte of Cells is therefore out of the question. Instead, be beneficial Substances such as water with antifreeze, z. B. Glycol, and inhibitors that prevent limescale used. These substances are generally proportionate safe, cheap and easy to handle. The latter is especially advantageous if the medium for the heat exchange transport is to be exchanged.

Über das Leitungssystem (3) wird das wärmetransportierende Medium zu den einzelnen Zellen und zur externen Heiz-/Kühleinrichtung transportiert. Dabei kann das Leitungssystem einerseits als starres Rohrsystem (z. B. aus Kunststoff, Metall) oder auch als flexibles Schlauchsystem (Kunststoff-, Stahlwellschlauch) oder entsprechenden Kombinationen ausgeführt sein. In einfachster Bauweise wird ein elastischer Schlauch, der später von dem Medium durchströmt wird, nacheinander meanderförmig durch die Zellen gefädelt. Alternativ zu einer solchen seriell durchströmten Anordnung kann das Leitungssystem ohne Mehrauf-Wand auch so angeordnet werden, dass Zellen - z. B. gruppenweise - parallel von dem wärmetransportierendem Medium durchströmt werden. Damit ist eine gleichmäßige Kühlung/Heizung aller Zellen gewährleistet. Via the line system ( 3 ), the heat-transporting medium is transported to the individual cells and to the external heating / cooling device. In this case, the line system can be designed on the one hand as a rigid pipe system (eg made of plastic, metal) or as a flexible hose system (plastic, steel corrugated hose) or corresponding combinations. In the simplest construction, an elastic tube, which is later flowed through by the medium, threaded sequentially meandering through the cells. As an alternative to such a series-flow arrangement, the line system without additional wall can also be arranged so that cells -. B. in groups - are flowed through in parallel by the heat-transporting medium. This ensures uniform cooling / heating of all cells.

Damit das wärmetransportierende Medium durch die Zellen und die externe Heiz-/Kühleinrichtung zirkuliert, ist vorzugsweise eine Pumpe (9) vorgesehen. Bei einer Anordnung der Heizelemente der Heiz-/Kühleinrichtung unterhalb der Batterie, bzw. der Kühlelemente oberhalb der Batterie, kann bei entsprechender Ausführung des Leitungssystems auch eine Zirkulation des wärmetransportierenden Mediums durch Konvektion erfolgen. In order for the heat-transporting medium to circulate through the cells and the external heating / cooling device, a pump ( 9 ) is preferably provided. In an arrangement of the heating elements of the heating / cooling device below the battery, or the cooling elements above the battery, a circulation of the heat-transporting medium can be carried out by convection with a corresponding design of the conduit system.

In der Figur ist als externe Heiz- und Kühleinrichtung (5) ein Peltierelement dargestellt. Auch bei der Verwendung solcher Peltierelemente zur Kühlung oder Heizung erfolgt der Wärmetransport durch ein Fluid, so dass keine engtolerierten Passungen an den wärmeübertragenden Flächen der Zellen und der Peltierelemente erforderlich ist. Alternativ oder in Kombination können auch andere Vorrichtungen zur Kühlung oder Heizung eingesetzt werden (z. B. Kompressorsysteme, Luft-, Wasserkühlung, Widerstandsheizung). In the figure, a Peltier element is shown as an external heating and cooling device ( 5 ). Even with the use of such Peltier elements for cooling or heating, the heat transfer is carried out by a fluid, so that no tight tolerances on the heat transfer surfaces of the cells and the Peltier elements is required. Alternatively or in combination, other devices for cooling or heating can be used (eg compressor systems, air, water cooling, resistance heating).

Für eine Stabilisierung der Zellentemperatur bei unterschiedlichen Betriebsbedingungen ist in der bevorzugten Ausführungsform ein Regler (6) vorgesehen, der verschiedene Komponenten (z. B. Pumpen, Lüfter, Kompressoren usw.) in Abhängigkeit von Temperaturwerten ansteuert, die von einem oder mehreren Temperaturfühlern aufgenommen werden. Dargestellt ist in der Figur ein Temperaturfühler (7) im Innenbereich des Batteriegehäuses. In einer erweiterten Ausführungsform können auch einzelne Zellen direkt - oder auch Zellengruppen - durch separate Temperaturfühler überwacht werden (nicht dargestellt). Der Regler verändert dann beispielsweise den Fluß des wärmetransportierenden Mediums im Leitungssystem durch Ansteuerung einer Pumpe (9) oder variiert die Leistung der Heiz-/Kühleinrichtung - bei dem in der Figur dargestellten Peltierelement beispielsweise durch Änderung von Stromstärke und/oder Stromrichtung und Drehzahlregelung des Lüfters (8). In order to stabilize the cell temperature under different operating conditions, in the preferred embodiment, a regulator ( 6 ) is provided which controls various components (eg, pumps, fans, compressors, etc.) in response to temperature readings taken by one or more temperature sensors , Shown in the figure, a temperature sensor ( 7 ) in the interior of the battery case. In an extended embodiment, individual cells can also be monitored directly - or cell groups - by separate temperature sensors (not shown). The controller then changes, for example, the flow of the heat-transporting medium in the line system by controlling a pump ( 9 ) or varies the performance of the heating / cooling device - in the Peltier element shown in the figure, for example, by changing the current and / or current direction and speed control of the fan ( 8 ).

Grundsätzlich bietet das erfindungsgemäße System bei hohem Kühlungs- und Heizungswirkungsgrad den Vorteil einer Anordnung der Zellen in dichter Packung und ermöglicht so kurze elektrische Zellverbindungen mit entsprechend geringem Leitungswiderstand und damit verbundenen Verlusten. Basically, the system according to the invention offers a high Cooling and heating efficiency the advantage of an arrangement of Cells in tight packing, allowing for short electrical Cell connections with correspondingly low line resistance and associated losses.

Damit einher geht eine kompakte Bauweise, die bei modernen Fahrzeugkonstruktionen ein wesentlicher Faktor darstellt. This is accompanied by a compact design, the modern Vehicle structures is an essential factor.

Claims (9)

1. Vorrichtung zur Regelung der Temperatur von Hochleistungs- Sekundärbatterien für Fahrzeuganwendungen, wobei in einem Gehäuse (1) mehrere Zellen (2) angeordnet und elektrisch miteinander verbunden sind, dadurch gekennzeichnet, dass die Zellen (2) Kanäle aufweisen, durch die ein wärmetransportierendes Medium strömt. 1. A device for regulating the temperature of high-performance secondary batteries for vehicle applications, wherein in a housing ( 1 ) a plurality of cells ( 2 ) are arranged and electrically connected to each other, characterized in that the cells ( 2 ) have channels through which a heat-transporting medium flows. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Kanäle durch ein Leitungssystem (3) miteinander verbunden sind. 2. Apparatus according to claim 1, characterized in that the channels are connected to each other by a conduit system ( 3 ). 3. Vorichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass außerhalb des Gehäuses (1) eine Heiz- bzw. Kühleinrichtung (5) vorhanden ist, welche das wärmetransportierende Medium heizt bzw. kühlt. 3. Vorichtung according to claim 1 or 2, characterized in that outside the housing ( 1 ) has a heating or cooling device ( 5 ) is present, which heats or cools the heat-transporting medium. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Heiz- bzw. Kühleinrichtung (5) Peltierelemente enthält. 4. Apparatus according to claim 3, characterized in that the heating or cooling device ( 5 ) contains Peltier elements. 5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Leistung der Heiz- bzw. Kühleinrichtung (5) durch einen Regler (6) gesteuert wird. 5. Device according to one of claims 1 to 4, characterized in that the power of the heating or cooling device ( 5 ) by a controller ( 6 ) is controlled. 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Regler (6) mit einem Temperaturfühler (7) im Innern des Gehäuses (1) verbunden ist. 6. Apparatus according to claim 5, characterized in that the controller ( 6 ) is connected to a temperature sensor ( 7 ) in the interior of the housing ( 1 ). 7. Vorrichtung nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass der Regler (6) Mittel ansteuert, welche die Strömung des wärmetransportierenden Mediums beeinflussen. 7. Device according to one of claims 5 or 6, characterized in that the controller ( 6 ) controls means which influence the flow of the heat-transporting medium. 8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Strömung des wärmetransportierenden Mediums durch Konvektion erfolgt. 8. Device according to one of claims 1 to 7, characterized characterized in that the flow of the heat-transporting Medium by convection. 9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Gehäuse (1) aus hermetisch dicht verschweißtem Stahlblech besteht. 9. Device according to one of claims 1 to 8, characterized in that the housing ( 1 ) consists of hermetically sealed welded sheet steel.
DE2002102807 2002-01-25 2002-01-25 Device for tempering high-performance secondary batteries for vehicle applications Expired - Fee Related DE10202807B4 (en)

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GB2504378A (en) * 2012-06-11 2014-01-29 Jaguar Land Rover Ltd A system for cooling a vehicle battery pack and a cooling plate for use in the system
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DE10346706A1 (en) * 2003-10-08 2005-05-12 Daimler Chrysler Ag Method for control of battery cooling, especially car battery uses for control first battery parameter, e.g. its temperature course, based on further battery parameter(s)
DE10346706B4 (en) * 2003-10-08 2006-11-09 Daimlerchrysler Ag Method for controlling a cooling of a battery
DE102006001714A1 (en) * 2005-10-28 2007-05-03 Temic Automotive Electric Motors Gmbh Device for heating an energy storage unit in a vehicle having a hybrid drive system comprises first units for converting electrical energy into heat energy and second units for measuring the actual temperature of the energy storage unit
WO2008001022A1 (en) * 2006-06-30 2008-01-03 Valeo Equipements Electriques Moteur Compact power supply device for a motor vehicle comprising cooling means provided with an external heat sink
WO2008001017A1 (en) 2006-06-30 2008-01-03 Valeo Equipements Electriques Moteur Compact power supply device for a motor vehicle comprising regulated cooling means
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DE102009006540B4 (en) * 2008-01-31 2020-12-31 Denso Corporation Battery temperature controller and appropriate arrangement of the temperature sensor
DE102008010820A1 (en) * 2008-02-23 2009-08-27 Daimler Ag Battery for use in e.g. electrically operated motor vehicle for passenger transport, has individual cells connected together in parallel and/or serial manner, and arranged in housing cooled by cooling medium e.g. distilled water
US8394527B2 (en) 2008-10-23 2013-03-12 Li-Tec Battery Gmbh Galvanic cell for an accumulator
US8617739B2 (en) 2008-10-23 2013-12-31 Li-Tec Battery Gmbh Galvanic cell for an accumulator
US8322532B2 (en) 2008-10-23 2012-12-04 Tim Schafer Packaging device and packaging system for essentially flat objects, for example lithium-ion cells
US8603655B2 (en) 2008-10-24 2013-12-10 Li-Tec Battery Gmbh Accumulator comprising a plurality of galvanic cells
US20100151300A1 (en) * 2008-12-15 2010-06-17 Andreas Gutsch Device for storing electrical energy
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AT514746A1 (en) * 2013-08-29 2015-03-15 Avl List Gmbh Connection unit for a cooling medium
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