DE102009054269A1 - Energy storage arrangement for electric- and hybrid vehicle, has energy cells switched parallel to cross-strands, and exchange system for cross strands and energy cells, which are charged with charge controller - Google Patents

Energy storage arrangement for electric- and hybrid vehicle, has energy cells switched parallel to cross-strands, and exchange system for cross strands and energy cells, which are charged with charge controller Download PDF

Info

Publication number
DE102009054269A1
DE102009054269A1 DE102009054269A DE102009054269A DE102009054269A1 DE 102009054269 A1 DE102009054269 A1 DE 102009054269A1 DE 102009054269 A DE102009054269 A DE 102009054269A DE 102009054269 A DE102009054269 A DE 102009054269A DE 102009054269 A1 DE102009054269 A1 DE 102009054269A1
Authority
DE
Germany
Prior art keywords
energy
strands
cross
cells
energy cells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE102009054269A
Other languages
German (de)
Inventor
Hanno Hinrichsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE102009054269A priority Critical patent/DE102009054269A1/en
Publication of DE102009054269A1 publication Critical patent/DE102009054269A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/441—Methods for charging or discharging 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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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
    • 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

Abstract

The arrangement has energy cells switched parallel to cross-strands in a matrix form, and exchange system for the cross strands and the energy cells. The energy cells are charged with a charge controller, which is switched parallel to the cross strand. Voltage of the cross-strand is monitored and a charging condition for the energy cells is determined based on determination of the voltage. Energy is supplied to the charge controller based on the charging condition. The energy cells are cooled by a cooling fluid.

Description

Die Erfindung besteht aus der Anordnung einzelner Energiezellen (2-polig) in Reihe und gleichzeitig paralleler Verschaltungsart zu einem Gesamtenergiespeicher mit Austauschsystem für ganze Stränge oder Einzelzellen.The invention consists of the arrangement of individual energy cells (2-pole) in series and simultaneously parallel Verschaltungsart to a total energy storage with exchange system for whole strands or single cells.

Der Energiespeicher ist wie folgt aufgebaut: Durch die Kontaktierung der Pluspole aller Energiezellen in einem Strang miteinander und zusätzlich aller Minuspole aller Zellen eines Stranges miteinander addiert sich die Kapazität und die Stromabgabe. Man spricht von einer Parallelschaltung.The energy storage is structured as follows: By contacting the positive poles of all energy cells in a string together and in addition all negative poles of all cells of a strand together, the capacity and the current output adds up. One speaks of a parallel connection.

Diese ab nun Querstrang genannte Anordnung wird dann mit dem resultierenden, gemeinsamen Pluspol an den resultierenden Minuspol aller parallel geschalteten Zellen des darüber liegenden Querstranges verbunden und dessen Gesamtpluspol wieder mit dem Gesamtminuspol des darüber liegenden Stranges und so weiter. Somit entsteht eine Matrix aus den einzelnen Energiezellen. Die Gesamtspannung addiert sich aus den elektrisch in Reihe geschalteten Quersträngen, die parallel geschalteten Energiezellen eines Querstranges ergeben die Kapazität eines Querstranges. Man spricht von einer Reihenschaltung der Querstränge miteinander und einer Parallelschaltung der Energiezellen in einem Querstrang.This arrangement, which is now referred to as the transverse strand, is then connected to the resulting, common plus pole to the resulting negative pole of all cells connected in parallel of the transverse line above it, and its total positive pole again to the total negative pole of the strand above it, and so on. This creates a matrix of the individual energy cells. The total voltage is added from the electrically connected in series cross strands, the parallel connected energy cells of a transverse strand give the capacity of a transverse strand. One speaks of a series connection of the transverse strands with one another and a parallel connection of the energy cells in a transverse line.

Der Strom kann nun innerhalb der Matrix den leichtesten Weg wählen und ein Defekt einzelner Zellen würde nicht zum Ausfall des Gesamtenergiespeichers führen. Außerdem ist somit die Stromabgabe bei sehr niedrigen Temperaturen ebenfalls gewährleistet, auch wenn vereinzelt Energiezellen bereits einen hohen Innenwiderstand im Alter aufweisen.The current can now choose the easiest way within the matrix and a single cell failure would not lead to the total energy storage failure. In addition, the current output is thus also ensured at very low temperatures, even if sporadic energy cells already have a high internal resistance in old age.

Die Matrixanordnung sorgt zu gleich auch für einer Angleichung des Innenwiderstandes, so dass nach geringer Zeit der Innenwiderstand der Zellen zueinander angeglichen ist.The matrix arrangement also ensures an equalization of the internal resistance, so that after a short time the internal resistance of the cells is matched to one another.

Zusätzlich sind in Reihe mit den Energiezellen Schutzelemente installiert, die den Strom begrenzen und somit eine Überlast der einzelnen Energiezellen verhindern. Dadurch wird weiterhin die Gefahr eines Brandes der Energiezelle, z. B. bei Lithium Ionen Energiespeichern verhindert.In addition, protective elements are installed in series with the energy cells, which limit the current and thus prevent an overload of the individual energy cells. As a result, the risk of a fire of the energy cell, z. B. prevents lithium ion energy storage.

Geladen werden die Zellen durch Laderegler, die parallel zu jedem Querstrang geschaltet sind. Hierbei wird die Spannung eines einzelnen Querstranges überwacht. Anhand der Ermittelung der Spannung lässt sich der Ladezustand (SOC) bestimmen. Je nach Ladezustand kann die Energie nach Bedarf an die einzelnen Laderegler geleitet werden. Die Energiezellen eines Querstranges haben hierbei immer die gleiche Spannung und den gleichen Ladezustand, da zwischen den Energiezellen Ausgleichsladeströme stattfinden. Dies erspart zusätzliche Laderegler, da nicht wie bisher jede Energiezelle einen Laderegler/Balancer benötigt (derzeitiger Stand der Technik).The cells are charged by charge controllers, which are connected in parallel to each crossbar. Here, the tension of a single transverse strand is monitored. Based on the determination of the voltage, the state of charge (SOC) can be determined. Depending on the state of charge, the energy can be routed to the individual charge controllers as required. The energy cells of a transverse line here always have the same voltage and the same state of charge, since take place between the energy cells Ausgleichsladeströme. This saves additional charge controllers, since not every energy cell needs a charge controller / balancer (current state of the art).

Alternativ kann jedoch der Gesamtspeicher über den Gesamtpluspol und Gesamtminuspol geladen werden. Hier werden dann die Laderegler als Balancer verwendet pro Querstrang.Alternatively, however, the total memory can be loaded via the total plus pole and total minus pole. Here the charge controllers are used as balancers per transverse string.

Um nun die Austauschbarkeit einzelner Zellen oder Stränge z. B. im Fehlerfalle zu realisieren, lassen sich die parallel geschalteten Zellen entweder als kompletten Querstrang aus dem Gesamtenergiespeicher herausziehen, oder aber einzelne Zellen aus einem Querstrang entfernen. Da ein Querstrang, bestehend aus parallel geschalteten Energiezellen lediglich die einfache Nennspannung, wie bei einer einzelnen Energiezelle aufweist, ist das Entfernen eines Stranges ungefährlich. Zuvor muss lediglich die Stromzu- und abfuhr unterbrochen werden.In order to replace the interchangeability of individual cells or strands z. B. to realize in case of failure, the cells connected in parallel can either pull out of the total energy storage as a complete cross-strand, or remove individual cells from a cross-strand. Since a transverse string, consisting of parallel-connected energy cells has only the simple rated voltage, as in a single energy cell, the removal of a strand is harmless. Previously, only the power supply and discharge must be interrupted.

Ein weiteres Merkmal ist die Entfernmöglichkeit einzelner Zellen aus dem Energiespeicher heraus, die den laufenden Betrieb des Energiespeichers nicht einschränkt. Dies wird gewährleistet durch die Anordnungsform der Zellen in Matrixform. Hier kann sich der Strom auch um die fehlende Zelle herum ausprägen und fließen, dabei wird lediglich der Gesamtstrom minimal reduziert und die Kapazität auch nur um die der einzelnen Zelle (z. B. von 1000 oder auch 6000 Zellen). Durch dieses Austauschverfahren kann der Austausch des gesamten Energiespeichers vermieden werden. Stattdessen können einzelne Zellen zu einem Bruchteil des Preises des Gesamtspeichers erneuert werden.Another feature is the ability to remove individual cells from the energy storage, which does not limit the ongoing operation of the energy storage. This is ensured by the arrangement of the cells in matrix form. Here, the current can also be expressed around the missing cell and flow, thereby only the total current is minimally reduced and the capacity only by that of the individual cell (eg of 1000 or 6000 cells). By this exchange method, the replacement of the entire energy storage can be avoided. Instead, individual cells can be renewed at a fraction of the price of the total storage.

Der gesamte Energiespeicher ist in einem bruchfesten Gehäuse aufgehängt, dass zu gleich mechanische Kräfte, die von Außen dem Energiespeicher zugeführt werden in z. B. einer Unfallsituation ableitet.The entire energy storage is suspended in a break-resistant housing that equal to mechanical forces that are supplied from the outside of the energy storage in z. B. an accident situation derived.

Des weiteren ist das Gehäuse abnehmbar und Service Felder können geöffnet werden um einzelne Stränge oder Einzelzellen wie oben genannt im Reparaturfalle zu entfernen.Furthermore, the housing is removable and service fields can be opened to remove individual strands or single cells as mentioned above in case of repair.

Zusätzlich werden die Energiezellen gekühlt, entweder mit Luft die über ein Gebläse in das Gehäuse eingeleitet wird oder mittels Kühlflüssigkeit um eine Alterung der Zellen durch zu hohe Temperaturen zu verhindern.In addition, the energy cells are cooled, either with air which is introduced via a blower in the housing or by means of cooling liquid to prevent aging of the cells by excessive temperatures.

Derzeitiger Stand der Technik ist stets der Kompletttausch des Energiespeichers gegen einen neuen Energiespeicher. Dies ist weder ökologisch noch ökonomisch vertretbar.Current state of the art is always the complete replacement of the energy storage against a new energy storage. This is neither ecologically nor economically justifiable.

Derzeitiger Stand der Technik Current state of the art

  • European Patent Application EP 1811591 European Patent Application EP 1811591
  • United States Patent Application 20080280200United States Patent Application 20080280200

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • EP 1811591 [0014] EP 1811591 [0014]
  • US 20080280200 [0014] US 20080280200 [0014]

Claims (1)

Oberbegriff: Energiespeicheranordnung bestehend aus in Matrixform angeordneter Energiezellen für Elektro- und Hybridfahrzeuge mit kombiniertem Austauschverfahren für Einzelzellstränge und Einzelenergiezellen Schutzgegenstand (patentfähig: Hauptanspruch): Geschützt werden soll die Kombination aus Energiespeicher in Matrixform, bestehend aus parallel geschalteten Energiezellen zu Quersträngen, sowie mehrer Querstränge in Reihe geschaltet zum Gesamtenergiespeicher, versehen mit einem Austauschsystem für Einzelquerstränge und Einzelenergiezellen. Die Besonderheit dabei ist, dass bei Defekt oder Entnahme einzelner Energiezellen der Energiespeicher weiterhin betrieben werden kann.Preamble: Energy storage arrangement consisting of arranged in matrix energy cells for electric and hybrid vehicles with a combined exchange method for single cell strands and individual energy cells Subject of protection (patentable: main claim): To be protected is the combination of energy storage in matrix form, consisting of parallel energy cells to cross strands, as well as several cross strands connected in series to the total energy storage, provided with an exchange system for single cross strands and individual energy cells. The peculiarity is that in case of defect or removal of individual energy cells of the energy storage device can continue to operate.
DE102009054269A 2009-11-23 2009-11-23 Energy storage arrangement for electric- and hybrid vehicle, has energy cells switched parallel to cross-strands, and exchange system for cross strands and energy cells, which are charged with charge controller Withdrawn DE102009054269A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102009054269A DE102009054269A1 (en) 2009-11-23 2009-11-23 Energy storage arrangement for electric- and hybrid vehicle, has energy cells switched parallel to cross-strands, and exchange system for cross strands and energy cells, which are charged with charge controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009054269A DE102009054269A1 (en) 2009-11-23 2009-11-23 Energy storage arrangement for electric- and hybrid vehicle, has energy cells switched parallel to cross-strands, and exchange system for cross strands and energy cells, which are charged with charge controller

Publications (1)

Publication Number Publication Date
DE102009054269A1 true DE102009054269A1 (en) 2011-05-26

Family

ID=43902100

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102009054269A Withdrawn DE102009054269A1 (en) 2009-11-23 2009-11-23 Energy storage arrangement for electric- and hybrid vehicle, has energy cells switched parallel to cross-strands, and exchange system for cross strands and energy cells, which are charged with charge controller

Country Status (1)

Country Link
DE (1) DE102009054269A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013020942A1 (en) 2013-12-12 2015-06-18 Daimler Ag Method for maintaining, repairing and / or optimizing a battery and a battery with a number of electrically interconnected single cells

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3409599A1 (en) * 1983-03-16 1984-09-20 South African Inventions Development Corp., Pretoria, Transvaal ENERGY STORAGE BATTERY
US5227259A (en) * 1991-07-24 1993-07-13 Electric Power Research Institute, Inc. Apparatus and method for locating and isolating failed cells in a battery
EP1811591A1 (en) 2006-01-20 2007-07-25 Torqeedo GmbH Battery
US20080280200A1 (en) 2006-11-02 2008-11-13 Sony Corporation Battery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3409599A1 (en) * 1983-03-16 1984-09-20 South African Inventions Development Corp., Pretoria, Transvaal ENERGY STORAGE BATTERY
US5227259A (en) * 1991-07-24 1993-07-13 Electric Power Research Institute, Inc. Apparatus and method for locating and isolating failed cells in a battery
EP1811591A1 (en) 2006-01-20 2007-07-25 Torqeedo GmbH Battery
US20080280200A1 (en) 2006-11-02 2008-11-13 Sony Corporation Battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013020942A1 (en) 2013-12-12 2015-06-18 Daimler Ag Method for maintaining, repairing and / or optimizing a battery and a battery with a number of electrically interconnected single cells
US10347949B2 (en) 2013-12-12 2019-07-09 Daimler Ag Method for maintenance, repair and/or optimization of a battery and battery having a number of individual cells connected to one another electrically

Similar Documents

Publication Publication Date Title
DE102011103118A1 (en) Device and method for automatically discharging a battery of a vehicle
AT502496B1 (en) METHOD AND ARRANGEMENT FOR CHANGING THE LOAD AND HEALTH CONDITION (SOC, SOH) OF ACCUMULATORS
EP3720733B1 (en) Method for controlling an electrical system of an electrically drivable motor vehicle having a plurality of batteries, and electrical system of an electrically drivable motor vehicle
DE102011121937A1 (en) Protection circuit for a battery pack
WO2018233956A1 (en) Electric energy supply device comprising a plurality of usage units which are connected in order to form strands, and method for operating such an energy supply device
DE102013013170A1 (en) Battery e.g. high voltage lithium ion battery for electric vehicle, has battery management system that closes semiconductor switches to short-circuit poles of single cells, when temperature of cells is below threshold temperature
DE102009035466A1 (en) Method for forming e.g. lithium-ion single cells, in battery that is utilized in e.g. hybrid drive vehicle, involves electrically serially and/or parallelly connecting single cells in cell assembly, and cooling cells by cooling device
DE102016109074A1 (en) Method and arrangement for charging a vehicle battery
DE102013204538A1 (en) Battery cell module and method of operating a battery cell module
DE102017210610A1 (en) An electric power supply device having a plurality of exchangeable use units and methods of operating such an energy delivery device
DE102009054269A1 (en) Energy storage arrangement for electric- and hybrid vehicle, has energy cells switched parallel to cross-strands, and exchange system for cross strands and energy cells, which are charged with charge controller
DE102012212374A1 (en) Battery system installed in e.g. hybrid vehicle, has several battery cells that are connected in series via battery string, and several fuses that are connected in series to battery cells
DE102011114998A1 (en) On-board charging unit of e.g. hybrid motor vehicle, has high-voltage charging port for high-voltage battery for providing drive power, and low-voltage charging port for low-voltage battery to permit charging of high-voltage battery
DE102010061763A1 (en) Method for charging a battery
DE102019200510A1 (en) Measuring arrangement, high-voltage battery, motor vehicle and method for determining a complex impedance
DE102012204966A1 (en) Battery system used in e.g. electric car, has PTC resistor which is located in close proximity to resistor to switch ON transistor to increase resistance value of PTC resistor while decreasing voltage value by heat action of resistor
DE102009038168B4 (en) Current bridging element for releasably closing a circuit
DE102013204509A1 (en) Battery module and method for monitoring a battery module
DE102020127699A1 (en) Method for operating a traction battery for a motor vehicle and corresponding traction battery
DE102012208349A1 (en) Method for adjusting states of charge of battery modules of lithium ion battery for operating electric motor for drive system of vehicle, involves discharging first battery modules in addition to second battery modules to operate motor
DE102014106983A1 (en) Method for determining the state of charge of a traction battery of a truck
DE102014019306A1 (en) Apparatus and method for controlling the temperature of a cell block assembly and battery
DE102017216486A1 (en) Electrical parallel connection of a plurality of electrical energy storage
DE102018217389A1 (en) Electrical energy storage device with a housing and at least two pole connections led out of the housing and its use
EP3900147B1 (en) Battery module for a motor vehicle

Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
R005 Application deemed withdrawn due to failure to request examination