WO2012167811A1 - Method and apparatus for operating electrochemical batteries - Google Patents

Method and apparatus for operating electrochemical batteries Download PDF

Info

Publication number
WO2012167811A1
WO2012167811A1 PCT/EP2011/006270 EP2011006270W WO2012167811A1 WO 2012167811 A1 WO2012167811 A1 WO 2012167811A1 EP 2011006270 W EP2011006270 W EP 2011006270W WO 2012167811 A1 WO2012167811 A1 WO 2012167811A1
Authority
WO
WIPO (PCT)
Prior art keywords
batteries
operating
temperature
temperature control
detection unit
Prior art date
Application number
PCT/EP2011/006270
Other languages
German (de)
French (fr)
Inventor
Daniel Schindler
Original Assignee
Daimler Ag
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 Daimler Ag filed Critical Daimler Ag
Publication of WO2012167811A1 publication Critical patent/WO2012167811A1/en

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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M10/65—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
    • 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 method for operating a plurality of electrically interconnected electrochemical batteries, wherein operating temperatures of the batteries are detected and adjusted by means of a tempering.
  • the invention further relates to a device for operating a plurality of electrically interconnected electrochemical batteries, comprising at least one
  • Temperature detection unit for detecting operating temperatures of the batteries and a tempering arrangement for temperature control of the batteries.
  • the invention is based on the object, a comparison with the state improved method and an improved device for operating a plurality of electrically
  • Temperieranaku set. According to the invention, internal electrical resistances of the batteries are detected and the respective operating temperature of the batteries is set such that the internal resistances of the batteries are the same.
  • Fig. 1 shows schematically a profile of an internal electrical resistance of a battery as a function of an operating temperature of the battery
  • Fig. 2 shows an electrical load circuit with several electrically connected in parallel
  • Batteries as an electrical energy source and a device for operating the batteries are provided in all figures with the same reference numerals.
  • FIG. 1 shows a profile of an internal electrical resistance R_i_1 of a battery B1 shown in more detail in FIG. 1 as a function of an operating temperature T1 of FIG. 1
  • Figure 2 shows an electrical load circuit with a plurality of electrically connected in parallel batteries B1 to Bn as an electrical energy source for an electrical load R load . Furthermore, a device 1 for operating the batteries B1 to Bn is shown.
  • the batteries B1 to Bn are each high-voltage batteries of the same type for use as energy storage for electrical energy in a vehicle, not shown.
  • the vehicle is in particular an electric vehicle or a hybrid vehicle, wherein an electric drive motor of the vehicle, which represents the electrical load R Las t, can be operated by means of the electrical energy stored in the batteries B1 to Bn.
  • the batteries B1 to Bn are each characterized by an individual and
  • design-related internal resistance R_i_1 to R_i_n whose course as a function of an operating temperature T1 to Tn of the respective battery B1 to Bn generally corresponds to the course shown in Figure 1.
  • Batteries B1 to Bn same. In the unloaded state of the batteries B1 to Bn equalizing currents form between the batteries B1 to Bn, wherein the
  • a total load current I Las t results from the sum of the load currents I1 to I in the batteries B1 to Bn according to:
  • the operating temperatures T1 to Tn are each by means of a
  • the tempering 4 is in each case of a thermally with one of Batteries B1 to Bn coupled heat conducting 4.1 to 4.n formed, which by a first temperature control medium K and a second temperature control medium W is flowed through.
  • the first temperature control medium K is a cooling medium, which is guided in a cooling circuit 5.
  • the second temperature control medium W is a heat medium, which in a
  • Heat cycle 6 is performed.
  • the device 1 further comprises valves V_k_1 to V_k_n, by means of which a flow rate of the first temperature control medium K is controlled or regulated by the heat conducting plates 4.1 to 4.n.
  • the device 1 For an individual increase in the operating temperatures T1 to Tn, the device 1 includes valves V_w_1 to V_w_n, by means of which a flow rate of the second
  • Temperiermediums W is controlled or regulated by the heat conducting 4.1 to 4.n.
  • Batteries B1 to Bn are the same size.
  • the setting of the operating temperatures T1 to Tn continues to be such that the operating temperatures T1 to Tn of the batteries B1 to Bn are selected in a predetermined range.
  • the range represents a defined range in which the batteries B1 to Bn each have their maximum electrical efficiency.

Abstract

The invention relates to a method for operating a plurality of electrically connected electrochemical batteries (B1 to Bn), wherein operating temperatures (T1 to Tn) of the batteries (B1 to Bn) are detected and are adjusted by means of a temperature control arrangement (4). According to the invention, electrical internal resistances (R_i_1 to R_i_n) of the batteries (B1 to Bn) are detected and the respective operating temperature (T1 to Tn) of the batteries (B1 to Bn) is adjusted in such a manner that the internal resistances (R_i_1 to R_i_n) of the batteries (B1 to Bn) are the same. The invention also relates to an apparatus (1) for operating a plurality of electrically connected electrochemical batteries (B1 to Bn), comprising at least one temperature detection unit (2.1 to 2.n) for detecting operating temperatures (T1 to Tn) of the batteries (B1 to Bn) and a temperature control arrangement (4) for controlling the temperature of the batteries (B1 to Bn). The invention provides at least one detection unit (3.1 to 3.n) for detecting electrical internal resistances (R_i_1 to R_i_n) of the batteries (B1 to Bn), wherein the detection unit (3.1 to 3.n) is coupled to the temperature control arrangement (4) and the respective operating temperature (T1 to Tn) of the batteries (B1 to Bn) can be adjusted by means of the temperature control arrangement (4) in such a manner that the internal resistances (R_i_1 to R_i_n) of the batteries (B1 to Bn) are the same.

Description

Verfahren und Vorrichtung zum Betrieb elektrochemischer Batterien  Method and device for operating electrochemical batteries
Die Erfindung betrifft ein Verfahren zum Betrieb mehrerer elektrisch verschalteter elektrochemischer Batterien, wobei Betriebstemperaturen der Batterien erfasst werden und mittels einer Temperieranordnung eingestellt werden. The invention relates to a method for operating a plurality of electrically interconnected electrochemical batteries, wherein operating temperatures of the batteries are detected and adjusted by means of a tempering.
Die Erfindung betrifft weiterhin eine Vorrichtung zum Betrieb mehrerer elektrisch verschalteter elektrochemischer Batterien, umfassend zumindest eine The invention further relates to a device for operating a plurality of electrically interconnected electrochemical batteries, comprising at least one
Temperaturerfassungseinheit zur Erfassung von Betriebstemperaturen der Batterien und eine Temperieranordnung zur Temperierung der Batterien. Temperature detection unit for detecting operating temperatures of the batteries and a tempering arrangement for temperature control of the batteries.
Aus dem Stand der Technik sind allgemein Elektrofahrzeuge und Hybridfahrzeuge bekannt, welche eine elektrische Antriebseinheit zum Antrieb aufweisen. Zur Speicherung elektrischer Energie und zur Versorgung der elektrischen Antriebseinheit dieser sind elektrochemische Hochvolt-Batterien vorgesehen, welche aus mehreren elektrisch parallel und/oder in Reihe verschalteten Einzelzellen gebildet sind. Die Batterien sind dabei baugleich ausgebildet. Die Batterien erreichen ihre elektrische Maximalleistung in einem definierten Bereich einer Betriebstemperatur. Bei einer Überschreitung des Bereichs der Betriebstemperatur verstärken sich der Alterungsprozesse der Einzelzellen exponentiell. Bei einer Unterschreitung des Bereichs der Betriebstemperatur verringert sich mit abnehmender Temperatur eine Energieabgabe der Einzelzellen bis zu einem Punkt, in welchem keine Energie mehr abgegeben wird. Aus diesem Grund sind aus dem Stand verschiedene Maßnahmen für eine aktive Kühlung, eine Beheizung und From the prior art electric vehicles and hybrid vehicles are generally known, which have an electric drive unit for driving. For storing electrical energy and for supplying the electric drive unit of these electrochemical high-voltage batteries are provided, which are formed of a plurality of electrically parallel and / or series-connected individual cells. The batteries are of identical construction. The batteries reach their maximum electrical output in a defined range of operating temperature. When the operating temperature range is exceeded, the aging processes of the individual cells increase exponentially. If the temperature falls below the operating temperature range, as the temperature decreases, the energy output of the individual cells decreases to the point where no energy is released. For this reason, different measures for active cooling, heating and are from the state
Maßnahmen zur thermischen Isolierung bekannt, um die Betriebstemperatur der Thermal insulation measures known to increase the operating temperature of
Batterien einzustellen. To adjust the batteries.
Der Erfindung liegt die Aufgabe zugrunde, ein gegenüber dem Stand verbessertes Verfahren und eine verbesserte Vorrichtung zum Betrieb mehrerer elektrisch The invention is based on the object, a comparison with the state improved method and an improved device for operating a plurality of electrically
verschalteter elektrochemischer Batterien anzugeben. Hinsichtlich des Verfahrens wird die Aufgabe durch die im Anspruch 1 angegebenen Merkmale und hinsichtlich der Vorrichtung durch die im Anspruch 3 angegebenen indicate interconnected electrochemical batteries. With regard to the method, the object is achieved by the features specified in claim 1 and in terms of the device by the specified in claim 3
Merkmale gelöst. Characteristics solved.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche. Advantageous embodiments of the invention are the subject of the dependent claims.
In einem Verfahren zum Betrieb mehrerer elektrisch verschalteter elektrochemischer Batterien werden Betriebstemperaturen der Batterien erfasst und mittels einer In a method for operating a plurality of electrically connected electrochemical batteries operating temperatures of the batteries are detected and by means of a
Temperieranordnung eingestellt. Erfindungsgemäß werden elektrische Innenwiderstände der Batterien erfasst und die jeweilige Betriebstemperatur der Batterien wird derart eingestellt, dass die Innenwiderstände der Batterien gleich sind. Temperieranordnung set. According to the invention, internal electrical resistances of the batteries are detected and the respective operating temperature of the batteries is set such that the internal resistances of the batteries are the same.
Daraus ergibt sich in besonders vorteilhafter Weise, dass bei Belastung der Batterien mit einer elektrischen Last alle, insbesondere parallel verschalteten Batterien den gleichen Laststrom aufweisen und somit gleich stark belastet werden. Weiterhin steht bei einer Verwendung der Batterien zur Versorgung einer als elektrische Antriebseinheit eines Fahrzeugs ausgebildeten elektrischen Last stets eine größtmögliche Fahrleistung zur Verfügung, da die Antriebsleistung nicht aufgrund einer Mehrbelastung oder Überlastung einer einzelnen Batterie reduziert wird. Auch ergibt sich aus der gleich starken Belastung der Batterien und der damit einhergehenden gleichmäßigen Verteilung des elektrischen Gesamtstromes auf alle Batterien eine Erhöhung der Lebensdauer der Batterien, da keine der Batterien dauerhaft stärker elektrisch belastet wird, als eine der anderen Batterien. This results in a particularly advantageous manner that under load of the batteries with an electrical load all, in particular parallel-connected batteries have the same load current and thus are equally charged. Furthermore, when using the batteries to supply a trained as an electrical drive unit of a vehicle electrical load is always a maximum driving performance available because the drive power is not reduced due to an additional load or overload of a single battery. Also results from the equally strong load on the batteries and the concomitant uniform distribution of the total electrical current to all batteries an increase in the life of the batteries, since none of the batteries is permanently more electrically loaded than one of the other batteries.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand von Zeichnungen näher erläutert. Embodiments of the invention are explained in more detail below with reference to drawings.
Dabei zeigt: Showing:
Fig. 1 schematisch einen Verlauf eines elektrischen Innenwiderstandes einer Batterie in Abhängigkeit einer Betriebstemperatur der Batterie und Fig. 1 shows schematically a profile of an internal electrical resistance of a battery as a function of an operating temperature of the battery and
Fig. 2 einen elektrischen Lastkreis mit mehreren elektrisch parallel verschalteten Fig. 2 shows an electrical load circuit with several electrically connected in parallel
Batterien als elektrische Energiequelle sowie eine Vorrichtung zum Betrieb der Batterien. Einander entsprechende Figuren sind in allen Figuren mit den gleichen Bezugszeichen versehen. Batteries as an electrical energy source and a device for operating the batteries. Corresponding figures are provided in all figures with the same reference numerals.
In Figur 1 ist ein Verlauf eines elektrischen Innenwiderstandes R_i_1 einer in Figur 1 näher dargestellten Batterie B1 in Abhängigkeit einer Betriebstemperatur T1 der FIG. 1 shows a profile of an internal electrical resistance R_i_1 of a battery B1 shown in more detail in FIG. 1 as a function of an operating temperature T1 of FIG
Batterie B1 dargestellt. Mit steigender Betriebstemperatur T1 der Batterie B1 sinkt deren Innenwiderstand R_i_1 , wobei der Verlauf nicht linear ist. Battery B1 shown. As the operating temperature T1 of the battery B1 increases, its internal resistance R_i_1 drops, the course being non-linear.
Figur 2 zeigt einen elektrischen Lastkreis mit mehreren elektrisch parallel verschalteten Batterien B1 bis Bn als elektrische Energiequelle für eine elektrische Last RLast. Weiterhin ist eine Vorrichtung 1 zum Betrieb der Batterien B1 bis Bn gezeigt. Figure 2 shows an electrical load circuit with a plurality of electrically connected in parallel batteries B1 to Bn as an electrical energy source for an electrical load R load . Furthermore, a device 1 for operating the batteries B1 to Bn is shown.
Bei den Batterien B1 bis Bn handelt es sich jeweils um Hochvolt-Batterien gleichen Typs zur Verwendung als Energiespeicher für elektrische Energie in einem nicht näher dargestellten Fahrzeug. Das Fahrzeug ist insbesondere ein Elektrofahrzeug oder ein Hybridfahrzeug, wobei mittels der in den Batterien B1 bis Bn gespeicherten elektrischen Energie ein elektrischer Antriebsmotor des Fahrzeugs, welcher die elektrische Last RLast darstellt, betreibbar ist. The batteries B1 to Bn are each high-voltage batteries of the same type for use as energy storage for electrical energy in a vehicle, not shown. The vehicle is in particular an electric vehicle or a hybrid vehicle, wherein an electric drive motor of the vehicle, which represents the electrical load R Las t, can be operated by means of the electrical energy stored in the batteries B1 to Bn.
Die Batterien B1 bis Bn zeichnen sich jeweils durch einen individuellen und The batteries B1 to Bn are each characterized by an individual and
bauartbedingten Innenwiderstand R_i_1 bis R_i_n aus, dessen Verlauf in Abhängigkeit von einer Betriebstemperatur T1 bis Tn der jeweiligen Batterie B1 bis Bn im Allgemeinen dem in Figur 1 dargestellten Verlauf entspricht. design-related internal resistance R_i_1 to R_i_n whose course as a function of an operating temperature T1 to Tn of the respective battery B1 to Bn generally corresponds to the course shown in Figure 1.
In Abhängigkeit des jeweiligen Innenwiderstandes R_i_1 bis R_i_n stellen sich bei Anlegen einer elektrischen Last an die parallel verschalteten Batterien B1 bis Bn unterschiedliche Lastströme 11 bis In ein. Depending on the respective internal resistance R_i_1 to R_i_n, different load currents 11 to In are set when an electrical load is applied to the batteries B1 to Bn connected in parallel.
Dabei ist die elektrische Spannung U aufgrund der Parallelschaltung für alle In this case, the electrical voltage U due to the parallel circuit for all
Batterien B1 bis Bn gleich. Im unbelasteten Zustand der Batterien B1 bis Bn bilden sich Ausgleichsströme zwischen den Batterien B1 bis Bn aus, wobei deren Batteries B1 to Bn same. In the unloaded state of the batteries B1 to Bn equalizing currents form between the batteries B1 to Bn, wherein the
Innenwiderstand R_i_1 bis R_i_n dann keine Rolle mehr spielt, wenn keine Internal resistance R_i_1 to R_i_n then no longer plays, if none
Ausgleichsströme mehr fließen. Equalizing currents flow more.
Die jeweiligen Lastströme 11 bis In ergeben sich, wie am Beispiel des Laststromes 11 der Batterie B1 im Folgenden dargestellt: (R i l + R, . ) [1] The respective load currents 11 to In result, as shown by the example of the load current 11 of the battery B1 below: (R il + R,.) [1]
Ein Gesamtlaststrom lLast ergibt sich aus der Summe der Lastströme 11 bis In der Batterien B1 bis Bn gemäß: A total load current I Las t results from the sum of the load currents I1 to I in the batteries B1 to Bn according to:
I\ + I2 + ... + In I \ + I2 + ... + In
Unter Berücksichtigung der Gleichung ergibt sich für den Gesamtlaststrom lLast Taking into account the equation, the total load current I las t
U u U u
^ Last ~ ' ■ + - + ... + - u ^ Last ~ ' ■ + - + ... + - u
(R _;_i + ^,) AR - 2 + RLO,, ) (R - " + RU, und
Figure imgf000006_0001
(R_; _ i + ^,) AR - 2 + RLO ,,) (R - "+ RU, and
Figure imgf000006_0001
Insbesondere aufgrund der bauartbedingten Individualität der Especially due to the design - related individuality of the
Innenwiderstände RJ_1 bis R_i_n und abweichenden Temperaturen der Internal resistances RJ_1 to R_i_n and deviating temperatures of the
Batterien B1 bis Bn in deren Umgebung innerhalb des Fahrzeugs weisen die Batteries B1 to Bn in their environment within the vehicle have the
Innenwiderstände R_i_1 bis R_i_n der Batterien B1 bis Bn unterschiedliche Größen auf, so dass es bei der elektrischen Belastung der Batterien B1 bis Bn mit der elektrischen Last RLast zu einer ungleichmäßigen Belastung der Batterien B1 bis Bn kommen kann. Internal resistors R_i_1 to R_i_n of the batteries B1 to Bn different sizes, so that it can lead to an uneven load on the batteries B1 to Bn at the electrical load of the batteries B1 to Bn with the electrical load R Las t.
Um diese ungleichmäßige Belastung der Batterien B1 bis Bn, d. h. Differenzen zwischen den einzelnen Lastströmen 11 bis In zu vermeiden, wird die jeweilige To avoid this uneven loading of the batteries B1 to Bn, d. H. To avoid differences between the individual load currents 11 to In, the respective
Betriebstemperatur T1 bis Tn der Batterien B1 bis Bn derart eingestellt, dass die Operating temperature T1 to Tn of the batteries B1 to Bn set such that the
Innenwiderstände R_i_1 bis R_i_n der Batterien B1 bis Bn gleich groß sind. Internal resistance R_i_1 to R_i_n of the batteries B1 to Bn are equal.
Hierzu werden die Betriebstemperaturen T1 bis Tn jeweils mittels einer For this purpose, the operating temperatures T1 to Tn are each by means of a
Temperaturerfassungseinheit 2.1 bis 2.n erfasst. Weiterhin werden die Detected temperature detection unit 2.1 to 2.n. Furthermore, the
Innenwiderstände R_i_1 bis R_i_n mittels einer geeigneten Erfassungseinheit 3.1 bis 3.n erfasst. Internal resistances R_i_1 to R_i_n detected by a suitable detection unit 3.1 to 3.n.
Zur Einstellung der Betriebstemperaturen T1 bis Tn ist eine Temperieranordnung 4 vorgesehen. Die Temperieranordnung 4 ist jeweils aus einer thermisch mit einer der Batterien B1 bis Bn gekoppelten Wärmeleitplatte 4.1 bis 4.n gebildet, welche von einem ersten Temperiermedium K und einem zweiten Temperiermedium W durchströmbar ist. To set the operating temperatures T1 to Tn a tempering 4 is provided. The tempering 4 is in each case of a thermally with one of Batteries B1 to Bn coupled heat conducting 4.1 to 4.n formed, which by a first temperature control medium K and a second temperature control medium W is flowed through.
Das erste Temperiermedium K ist ein Kühlmedium, welches in einem Kühlkreislauf 5 geführt wird. The first temperature control medium K is a cooling medium, which is guided in a cooling circuit 5.
Das zweite Temperiermedium W ist ein Wärmemedium, welches in einem The second temperature control medium W is a heat medium, which in a
Wärmekreislauf 6 geführt wird. Heat cycle 6 is performed.
Zum individuellen Senken der Betriebstemperaturen T1 bis Tn umfasst die Vorrichtung 1 des Weiteren Ventile V_k_1 bis V_k_n, mittels welchen eine Durchflussmenge des ersten Temperiermediums K durch die Wärmeleitplatten 4.1 bis 4.n gesteuert oder geregelt wird. For individual lowering of the operating temperatures T1 to Tn, the device 1 further comprises valves V_k_1 to V_k_n, by means of which a flow rate of the first temperature control medium K is controlled or regulated by the heat conducting plates 4.1 to 4.n.
Zur individuellen Erhöhung der Betriebstemperaturen T1 bis Tn umfasst die Vorrichtung 1 Ventile V_w_1 bis V_w_n, mittels welchen eine Durchflussmenge des zweiten For an individual increase in the operating temperatures T1 to Tn, the device 1 includes valves V_w_1 to V_w_n, by means of which a flow rate of the second
Temperiermediums W durch die Wärmeleitplatten 4.1 bis 4.n gesteuert oder geregelt wird. Temperiermediums W is controlled or regulated by the heat conducting 4.1 to 4.n.
Somit ist die Einstellung der Betriebstemperatur T1 bis Tn in der Art möglich, dass die Innenwiderstände R_i_1 bis R_i_n und somit die Lastströme 11 bis In aller Thus, the adjustment of the operating temperature T1 to Tn in the way that the internal resistances R_i_1 to R_i_n and thus the load currents 11 to In all
Batterien B1 bis Bn gleich groß sind. Batteries B1 to Bn are the same size.
Die Einstellung der Betriebstemperaturen T1 bis Tn erfolgt dabei weiterhin derart, dass die Betriebstemperaturen T1 bis Tn der Batterien B1 bis Bn in einem vorgegebenen Bereich gewählt werden. Der Bereich stellt einen definierten Bereich dar, in welchem die Batterien B1 bis Bn jeweils ihren maximalen elektrischen Wirkungsgrad aufweisen. The setting of the operating temperatures T1 to Tn continues to be such that the operating temperatures T1 to Tn of the batteries B1 to Bn are selected in a predetermined range. The range represents a defined range in which the batteries B1 to Bn each have their maximum electrical efficiency.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 Vorrichtung 1 device
2.1 bis 2.n Temperaturerfassungseinheit 2.1 to 2.n temperature detection unit
3.1 bis 3.n Erfassungseinheit 3.1 to 3.n registration unit
4 Temperieranordnung  4 tempering arrangement
4.1 bis 4. n Wärmeleitplatte 4.1 to 4. n heat conduction plate
5 Kühlkreislauf  5 cooling circuit
6 Wärmekreislauf  6 heat cycle
B1 bis Bn Batterie B1 to Bn battery
Last Gesamtlaststrom  Load total load current
11 bis In Laststrom  11 to In load current
K erstes TemperiermediumK first temperature control medium
T1 bis Tn Betriebstemperatur T1 to Tn operating temperature
R_i_1 bis R_i_n Innenwiderstand R_i_1 to R_i_n internal resistance
R_ast elektrische Last  R_ast electrical load
U Spannung U voltage
V_k_1 bis V_k_n Ventil  V_k_1 to V_k_n valve
V_w_1 bis V_w_n Ventil V_w_1 to V_w_n valve
W zweites Temperiermedium W second temperature control medium

Claims

Patentansprüche claims
Verfahren zum Betrieb mehrerer elektrisch verschalteter elektrochemischer Method for operating a plurality of electrically connected electrochemical
Batterien (B1 bis Bn), wobei Betriebstemperaturen (T1 bis Tn) der  Batteries (B1 to Bn), with operating temperatures (T1 to Tn) the
Batterien (B1 bis Bn) erfasst werden und mittels einer Temperieranordnung (4) eingestellt werden,  Batteries (B1 to Bn) are detected and adjusted by means of a tempering arrangement (4),
dadurch gekennzeichnet, dass characterized in that
elektrische Innenwiderstände (R_i_1 bis R_i_n) der Batterien (B1 bis Bn) erfasst werden und die jeweilige Betriebstemperatur (T1 bis Tn) der Batterien (B1 bis Bn) derart eingestellt wird, dass die Innenwiderstände (R_i_1 bis R_i_n) der electrical internal resistance (R_i_1 to R_i_n) of the batteries (B1 to Bn) are detected and the respective operating temperature (T1 to Tn) of the batteries (B1 to Bn) is set such that the internal resistances (R_i_1 to R_i_n) of
Batterien (B1 bis Bn) gleich sind. Batteries (B1 to Bn) are the same.
Verfahren nach Anspruch 1 , Method according to claim 1,
dadurch gekennzeichnet, dass characterized in that
die Betriebstemperaturen (T1 bis Tn) der Batterien (B1 bis Bn) in einem the operating temperatures (T1 to Tn) of the batteries (B1 to Bn) in one
vorgegebenen Bereich gewählt werden. predetermined range can be selected.
Vorrichtung (1 ) zum Betrieb mehrerer elektrisch verschalteter elektrochemischer Batterien (B1 bis Bn), umfassend zumindest eine Device (1) for operating a plurality of electrically connected electrochemical batteries (B1 to Bn), comprising at least one
Temperaturerfassungseinheit (2.1 bisTemperature detection unit (2.1 to
2.n) zur Erfassung von 2.n) for the detection of
Betriebstemperaturen (T1 bis Tn) der Batterien (B1 bis Bn) und eine Operating temperatures (T1 to Tn) of the batteries (B1 to Bn) and a
Temperieranordnung (4) zur Temperierung der Batterien (B1 bis Bn), Temperieranordnung (4) for temperature control of the batteries (B1 to Bn),
dadurch gekennzeichnet, dass characterized in that
zumindest eine Erfassungseinheit (3.1 bisat least one detection unit (3.1 to
3.n) zur Erfassung von elektrischen Innenwiderständen (R_i_1 bis R_i_n) der Batterien (B1 bis Bn) vorgesehen ist, wobei die Erfassungseinheit (3.1 bis 3.n) mit der Temperieranordnung (4) gekoppelt ist und die jeweilige Betriebstemperatur (T1 bis Tn) der Batterien (B1 bis Bn) mittels der Temperieranordnung (4) derart einstellbar ist, dass die 3.n) for detecting electrical internal resistances (R_i_1 to R_i_n) of the batteries (B1 to Bn) is provided, wherein the detection unit (3.1 to 3.n) is coupled to the temperature control arrangement (4) and the respective operating temperature (T1 to Tn ) of the batteries (B1 to Bn) by means of the tempering arrangement (4) is adjustable such that the
Innenwiderstände (R_i_1 bis R_i_n) der Batterien (B1 bis Bn) gleich sind.  Internal resistance (R_i_1 to R_i_n) of the batteries (B1 to Bn) are the same.
4. Vorrichtung (1 ) nach Anspruch 3, 4. Device (1) according to claim 3,
dadurch gekennzeichnet, dass  characterized in that
die Temperieranordnung (4) Ventile (V_k_1 bis V_k_n, V_w_1 bis V_w_n) zur Einstellung einer Durchflussmenge eines ersten Temperiermediums (K) eines Kühlkreislaufs (5) und eines zweiten Temperiermediums (W) eines  the tempering arrangement (4) valves (V_k_1 to V_k_n, V_w_1 to V_w_n) for setting a flow rate of a first temperature control medium (K) of a cooling circuit (5) and a second temperature control medium (W) of a
Wärmekreislaufs (6) durch Wärmeleitplatten (4.1 bis 4.n) der Batterien (B1 bis Bn) umfasst.  Heat cycle (6) by Wärmeleitplatten (4.1 to 4.n) of the batteries (B1 to Bn).
PCT/EP2011/006270 2011-06-10 2011-12-13 Method and apparatus for operating electrochemical batteries WO2012167811A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011103974.4 2011-06-10
DE201110103974 DE102011103974A1 (en) 2011-06-10 2011-06-10 Method and device for operating electrochemical batteries

Publications (1)

Publication Number Publication Date
WO2012167811A1 true WO2012167811A1 (en) 2012-12-13

Family

ID=45445975

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/006270 WO2012167811A1 (en) 2011-06-10 2011-12-13 Method and apparatus for operating electrochemical batteries

Country Status (2)

Country Link
DE (1) DE102011103974A1 (en)
WO (1) WO2012167811A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6861723B2 (en) * 2015-12-11 2021-04-21 ブルー・ソリューションズ・カナダ・インコーポレイテッド Battery with an electrochemical cell with variable impedance
CN106876826B (en) * 2017-03-30 2019-03-01 清华大学 Lithium battery group temperature equalization control system
JP2020061244A (en) * 2018-10-09 2020-04-16 株式会社東芝 Storage battery device
DE102022209074A1 (en) 2022-09-01 2024-03-07 Zf Friedrichshafen Ag Temperature control device for temperature control of at least one component of a motor vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09161853A (en) * 1995-12-08 1997-06-20 Nissan Motor Co Ltd Temperature controller of secondary battery
JP2008109841A (en) * 2006-09-25 2008-05-08 Tokyo Electric Power Co Inc:The Secondary battery system
JP2008236991A (en) * 2007-03-23 2008-10-02 Toshiba Corp Voltage balance circuit, battery unit, and battery unit control method
DE102009035480A1 (en) * 2009-07-31 2011-02-03 Daimler Ag Battery i.e. lithium ion battery, for use in electrical powertrain of electric vehicle to store electricity, has valve units connected with battery modules such that cooling of modules is influenced depending on aging condition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09161853A (en) * 1995-12-08 1997-06-20 Nissan Motor Co Ltd Temperature controller of secondary battery
JP2008109841A (en) * 2006-09-25 2008-05-08 Tokyo Electric Power Co Inc:The Secondary battery system
JP2008236991A (en) * 2007-03-23 2008-10-02 Toshiba Corp Voltage balance circuit, battery unit, and battery unit control method
DE102009035480A1 (en) * 2009-07-31 2011-02-03 Daimler Ag Battery i.e. lithium ion battery, for use in electrical powertrain of electric vehicle to store electricity, has valve units connected with battery modules such that cooling of modules is influenced depending on aging condition

Also Published As

Publication number Publication date
DE102011103974A1 (en) 2012-12-13

Similar Documents

Publication Publication Date Title
EP2539957B1 (en) Method for balancing states of charge of a battery having a plurality of battery cells as well as a corresponding battery management system and a battery
DE102017222975A1 (en) Control device, balance correction device, electrical storage system and device
DE102013104322A1 (en) Battery parallel balancing circuit
EP2705564B1 (en) Method for controlling a battery, and a battery for carrying out the method
DE102015114398A1 (en) Thermal conditioning of a vehicle traction battery
EP3149826B1 (en) Method and device for operating an electric energy storage system
DE112008001579T5 (en) The fuel cell system
DE102010031414A1 (en) cooling system
DE102010062187A1 (en) Method for determining the open circuit voltage of a battery, battery with a module for determining the open circuit voltage and a motor vehicle with a corresponding battery
DE102013204888A1 (en) Method for balancing different states of charge of batteries
WO2012095209A2 (en) Method for charging an intermediate circuit capacitor
DE102018200976A1 (en) Method for controlling the charging of a battery unit, method for charging a battery unit, control unit, charging system, battery system and working device
DE102018004891A1 (en) Method and device for voltage compensation in an electrical system of an electrically operated vehicle
WO2012167811A1 (en) Method and apparatus for operating electrochemical batteries
DE102014220005A1 (en) A method for cell symmetrization of a plurality of battery cells and battery system for performing such a method
WO2018233954A1 (en) Electric energy supply device comprising a busbar matrix, and method for operating the energy supply device
DE102011002673A1 (en) Energy-storage system for providing electrical power to e.g. vehicle, has energy store connected parallel to another energy store, charge transfer unit connected parallel to latter store, and switching device switched between energy stores
DE102010011916A1 (en) Battery i.e. lithium ion battery, for use in e.g. hybrid vehicle for storing electrical power, has battery modules that are connected in parallel with cooling device, where cooling of modules is influenced by charging state through valves
WO2018162602A1 (en) Submarine and method for operating a battery-fed electric drive system of a submarine
DE102018129426B3 (en) Process for active charge balancing in energy stores
DE102012207673A1 (en) Method for operating battery e.g. lithium ion battery used in vehicle e.g. motor car, involves setting up and discharging battery cell under consideration of monitored self discharge value of battery cell
WO2014023542A1 (en) Forming apparatus and method for forming battery cells of a battery
DE102015012526A1 (en) Method for heating a battery of a circuit arrangement and circuit arrangement
DE102014019306A1 (en) Apparatus and method for controlling the temperature of a cell block assembly and battery
DE102013016094A1 (en) Energy storage device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11804954

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11804954

Country of ref document: EP

Kind code of ref document: A1