WO2012152594A2 - Double module de batterie - Google Patents

Double module de batterie Download PDF

Info

Publication number
WO2012152594A2
WO2012152594A2 PCT/EP2012/057659 EP2012057659W WO2012152594A2 WO 2012152594 A2 WO2012152594 A2 WO 2012152594A2 EP 2012057659 W EP2012057659 W EP 2012057659W WO 2012152594 A2 WO2012152594 A2 WO 2012152594A2
Authority
WO
WIPO (PCT)
Prior art keywords
battery
coupling unit
input
switch
output
Prior art date
Application number
PCT/EP2012/057659
Other languages
German (de)
English (en)
Other versions
WO2012152594A3 (fr
Inventor
Ralph Schmidt
Stephan Rees
Stefan Butzmann
Holger Fink
Martin Lang
Original Assignee
Robert Bosch Gmbh
Sb Limotive Germany Gmbh
Sb Limotive Company Ltd.
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 Robert Bosch Gmbh, Sb Limotive Germany Gmbh, Sb Limotive Company Ltd. filed Critical Robert Bosch Gmbh
Publication of WO2012152594A2 publication Critical patent/WO2012152594A2/fr
Publication of WO2012152594A3 publication Critical patent/WO2012152594A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a battery double module and a battery having such a battery double module.
  • Battery systems will be used. In order to meet the voltage and available power requirements of a particular application, a large number of battery cells are connected in series. Since the power provided by such a battery must flow through all the battery cells and a battery cell can only conduct a limited current, battery cells are often additionally connected in parallel in order to increase the maximum current. This can be done either by providing multiple cell wraps within a battery cell housing or by externally interconnecting battery cells. It is, however,
  • FIG. 1 The block diagram of a conventional electric drive system, as used for example in electric and hybrid vehicles or in stationary applications such as in the rotor blade adjustment of wind turbines is shown in Figure 1.
  • a battery 10 is connected to a
  • Capacitor 1 1 is buffered.
  • a pulse inverter 12 which in each case via two switchable semiconductor valves and two diodes at three outputs against each other
  • the capacitance of the capacitor 1 1 must be large enough to the voltage in the DC link for a
  • FIG. 2 shows the battery of FIG. 1 in a more detailed block diagram.
  • a large number of battery cells are connected in series as well as optionally additionally in parallel, in order to achieve a high level of power for a particular application
  • a charging and disconnecting device 16 is connected between the positive pole of the battery cells and a positive battery terminal 14.
  • a separating device 17 can additionally be connected between the negative pole of the battery cells and a negative battery terminal 15.
  • the separating and charging device 16 and the separating device 17 each include a contactor 18 or 19, which are provided, the battery cells of the battery terminals 14, 15th
  • a charging contactor 20 with a charging resistor 20 connected in series with the charging contactor 20 is provided in the charging and disconnecting device 16.
  • the charging resistor 21 limits a charging current for the capacitor 1 1 when the battery is connected to the DC link.
  • the contactor 18 is initially left open and only the charging contactor 20 is closed.
  • the contactor 18 can be closed and
  • the charging contactor 20 are opened.
  • the contactors 18, 19 and the charging contactor 20 increase the cost of a battery 10 is not insignificant, since high demands are placed on their reliability and the currents to be led by them.
  • the series connection of a large number of battery cells, in addition to the high total voltage, involves the problem that the entire battery fails if a single battery cell fails, because the battery current due to the
  • the term means
  • Reliability means the ability of a system to operate correctly for a given time.
  • a battery double module which comprises a first and a second battery cell group.
  • Battery cell group are connected in series and each comprise at least one battery cell, preferably a lithium-ion battery cell.
  • the battery double module further comprises a first and a second coupling unit. Both coupling units each comprise a first input, a second input and an output. The two coupling units are each designed to connect the first input or the second input to the output in response to a control signal.
  • the first input of the first coupling unit is connected to a positive pole of the first battery cell group.
  • the second input of the second coupling unit is connected to a negative terminal of the second battery cell group.
  • the second input of the first coupling unit, a negative pole of the first battery cell group, the first input of the second coupling unit and a positive pole of the second battery cell group are connected to one another.
  • the two independently controllable coupling units make it possible, one or more battery cells, which of the first or the second
  • Battery cell group are assigned, so to couple to the outputs of the two coupling units that either the sum of the voltage generated by the two battery cell groups, one of each battery cell group generated single voltage or a voltage of 0 volts is visible from the outside.
  • the reliability of a Battery system can thus be increased significantly compared to that shown in Figure 1, because the failure of a single battery cell does not directly lead to failure of the battery system.
  • the coupling units may each have a changeover switch, which is designed to connect to the control signal either the first input or the second input to the output. Alternatively, the
  • Coupling units each have a first switch, which between the first
  • MOSFET MOSFET
  • IGBT Insulated Gate Bipolar Transistor
  • a first terminal of the battery dual module is connected to the output of the first coupling unit.
  • a second terminal of the battery dual module is connected to the output of the first coupling unit.
  • Battery double module connected to the output of the second coupling unit. At the two terminals then depending on the control of the two coupling units is a stage adjustable output voltage.
  • first and the second battery cell group each comprise the same number of battery cells.
  • the second input of the first coupling unit and the first input of the second coupling unit may be connected to a center tap of the battery module, on which externally another potential can be tapped, which may differ from the voltage applied to the two terminals of the battery module potentials.
  • a second aspect of the invention carries a battery, preferably a battery
  • Lithium-ion battery with one or more, preferably exactly three,
  • a battery module string comprises a plurality of series-connected battery double modules according to the invention.
  • Battery also has a control unit, which is formed, the To generate control signal for the respective coupling units and to the
  • control unit can be designed either the first one
  • the battery double module becomes high-impedance, whereby the current flow in the battery module string is interrupted. This can be useful in the case of maintenance, where, for example, all the battery double modules of a battery module string can be put into the high-impedance state in order to be able to replace a defective battery module without danger.
  • a third aspect of the invention relates to a motor vehicle with an electric
  • FIG. 2 shows a block diagram of a battery according to the prior art
  • FIG. 3 shows a coupling unit which can be used in the battery double module according to the invention
  • FIG. 4 shows a first embodiment of the coupling unit
  • FIG. 5 shows a second embodiment of the coupling unit
  • FIGS. 6 and 7 show two arrangements of the coupling unit in a battery module
  • FIG. 8 shows a first embodiment of the invention
  • Figure 9 shows a first embodiment of the battery according to the invention.
  • FIG. 3 shows a coupling unit 30, which in the inventive
  • the coupling unit 30 has two inputs 31 and 32 and an output 33 and is designed to connect one of the inputs 31 or 32 to the output 33 and to decouple the other. In certain embodiments of the coupling unit, this can also be designed to separate both inputs 31, 32 from the output 33. However, it is not intended to connect both the input 31 and the input 32 to the output 33.
  • FIG 4 shows a first embodiment of the coupling unit 30, which has a changeover switch 34, which in principle can connect only one of the two inputs 31, 32 to the output 33, while the respective other input 31, 32 is disconnected from the output 33.
  • the changeover switch 34 can be realized particularly simply as an electromechanical switch.
  • FIG. 5 shows a second embodiment of the coupling unit 30, in which a first and a second switch 35 or 36 are provided.
  • Each of the switches 35, 36 is connected between one of the inputs 31 and 32 and the output 33.
  • This embodiment offers the advantage that both inputs 31, 32 can be decoupled from the output 33, so that the output 33 becomes high-impedance.
  • the switches 35, 36 can be easily used as a semiconductor switch such as
  • MOSFET metal oxide semiconductor field effect transistor
  • Insulated Gate Bipolar Transistor (IGBT) switch can be realized.
  • Time can respond to a control signal or a change of the control signal and high switching rates can be achieved.
  • FIGS 6 and 7 show two arrangements of the coupling unit 30 in one
  • (single) battery module 40 The invention is not limited to such a series connection of battery cells, it can also be provided only a single battery cell or a
  • Terminal 42 and the negative pole of the battery cells 41 with a second
  • Terminal 43 connected. However, it is a mirror image arrangement as in
  • Terminal 42 and the output of the coupling unit 30 are connected to the second terminal 43.
  • FIG. 8 shows a first embodiment of a device according to the invention
  • the battery double module 1 10 includes a first and a second battery cell group 1 1 1, 1 12.
  • the two battery cell groups 1 1 1, 1 12 are connected in series and each comprise at least one battery cell 41st The
  • Battery double module 1 10 also includes a first and a second coupling unit 121, 122.
  • the two coupling units 121, 122 may be configured as shown in Figure 3 to 5. They each include a first input 131, 132, a second
  • the two coupling units 121, 122 can each be controlled so that either its first input 131, 132 or its second input 141, 142 is connected to its output 151, 152.
  • the first input 131 of the first coupling unit 121 is connected to a positive pole 161 of the first battery cell group 1 1 1.
  • the second input 142 of the second coupling unit 122 with a negative terminal 172 of the second
  • Wiring effort is due to the fact that the second input 141 of the first coupling unit 121, a negative terminal 171 of the first battery cell group 1 1 1, the first input 132 of the second coupling unit 122 and a positive terminal 162 of the second battery cell group 1 12 are interconnected.
  • the battery double module 110 includes a first terminal 181, which is connected to the output 151 of the first coupling unit 121. Symmetrically, a second terminal 182 is connected to the output 152 of the second coupling unit 122. Between the two terminals 181, 182 is depending on the control of the two
  • Coupling units 121, 122 tapped off a voltage which a single voltage of the first or the second battery cell group 1 1 1, 1 12, a sum of the two
  • Coupling unit 121 Coupling unit 121, a negative pole 171 of the first battery cell group 1 1 1, the first input 132 of the second coupling unit 122 and a positive pole 162 of the second
  • Battery cell group 1 12 are connected to a center tap 150, to which an additional potential can be tapped, which is different from those at the
  • Terminals 181, 182 can distinguish tangible potentials. This in the middle of the battery double module 1 10 tapped potential can be used for example for the supply of a multi-level inverter.
  • FIG. 9 shows a first embodiment of the battery according to the invention which has n battery module strings 50-1 to 50-n.
  • Battery module string 50-1 to 50-n has a plurality of
  • Battery double module 1 10 contains the same number of battery cells connected in an identical manner.
  • One pole of each battery module string may be connected to a corresponding pole of the other battery module strings, which is indicated by a dashed line in FIG.
  • a dashed line in FIG.
  • Battery module string each number of battery double modules 1 10 greater than 1 and one battery each number of battery module strings included. Also, at the poles of the battery module strings additionally charging and disconnecting devices may be provided as in Figure 2, if required by safety regulations.
  • FIG. 10 shows a drive system with a further embodiment of the battery according to the invention.
  • the battery has three battery module strings 50-1, 50-2 and 50-3, each directly to a
  • the battery of the invention preferably has exactly three battery module strings.
  • Battery of the invention has the further advantage that the functionality of a pulse inverter is already integrated in the battery.
  • a control unit of the battery either all battery double modules 1 10 a
  • Battery module strings either 0 V or the full output voltage of the
  • Battery module strings available.
  • suitable control as in a pulse inverter for example by pulse width modulation, so suitable phase signals for the drive of the drive motor 13 can be provided.
  • the invention also has the advantages of reducing the number of high-voltage components
  • the coupling units offer an integrated safety concept for pulse inverters and batteries and increase the reliability of the
  • a further advantage of the battery with integrated pulse inverter is that it can be constructed very easily modularly from individual battery double modules with integrated coupling units. As a result, the use of identical parts (modular principle) is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Hybrid Cells (AREA)

Abstract

L'invention concerne un double module de batterie (110) comprenant un premier et un second groupe d'éléments de batterie (111, 112), le premier et le second groupe d'éléments de batterie (11, 112) étant montés en série et comportant chacun au moins un élément de batterie (41), de préférence un élément de batterie lithium-ion. Le double module de batterie (110) comprend une première et une seconde unité de couplage (121, 122), ladite première et seconde unité de couplage (121, 122) comprenant chacune une première entrée (131, 132), une seconde entrée (141, 142) et une sortie (151, 152), et étant chacune conçues pour relier la première entrée (131, 132) ou la seconde entrée (141, 142) avec la sortie (151, 152) en réponse à un signal de commande. La première entrée (131) de la première unité de couplage (121) est reliée à un pôle positif (161) du premier groupe d'éléments de batterie (111), la seconde entrée (142) de la seconde unité de couplage (122) est reliée à un pôle négatif (172) du second groupe d'éléments de batterie (112), et la seconde entrée (141) de la première unité de couplage (121), un pôle négatif (171) du premier groupe d'éléments de batterie (111), la première entrée (132) de la seconde unité de couplage (122) et un pôle positif (162) du second groupe d'éléments de batterie (112) étant reliés entre eux.
PCT/EP2012/057659 2011-05-06 2012-04-26 Double module de batterie WO2012152594A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011075384.2 2011-05-06
DE102011075384A DE102011075384A1 (de) 2011-05-06 2011-05-06 Batteriedoppelmodul

Publications (2)

Publication Number Publication Date
WO2012152594A2 true WO2012152594A2 (fr) 2012-11-15
WO2012152594A3 WO2012152594A3 (fr) 2013-04-04

Family

ID=46027942

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/057659 WO2012152594A2 (fr) 2011-05-06 2012-04-26 Double module de batterie

Country Status (2)

Country Link
DE (1) DE102011075384A1 (fr)
WO (1) WO2012152594A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014200205A1 (de) * 2014-01-09 2015-07-09 Robert Bosch Gmbh Verfahren zur Bereitstellung einer elektrischen Spannung und Batterie

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5670861A (en) * 1995-01-17 1997-09-23 Norvik Tractions Inc. Battery energy monitoring circuits
EP1113563A2 (fr) * 1999-12-27 2001-07-04 Sony Corporation Bloc-batterie, dispositif d'alimentation de puissance et procédé de charge et décharge

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5670861A (en) * 1995-01-17 1997-09-23 Norvik Tractions Inc. Battery energy monitoring circuits
EP1113563A2 (fr) * 1999-12-27 2001-07-04 Sony Corporation Bloc-batterie, dispositif d'alimentation de puissance et procédé de charge et décharge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014200205A1 (de) * 2014-01-09 2015-07-09 Robert Bosch Gmbh Verfahren zur Bereitstellung einer elektrischen Spannung und Batterie

Also Published As

Publication number Publication date
DE102011075384A1 (de) 2012-11-08
WO2012152594A3 (fr) 2013-04-04

Similar Documents

Publication Publication Date Title
EP2559132B1 (fr) Unité d'accouplement et module de batterie avec onduleur intégré et fiabilité améliorée
EP2559137B1 (fr) Unité de couplage et module de batterie présentant un onduleur à impulsions intégré et des modules d'éléments pouvant être remplacés en cours de fonctionnement
EP2559136B1 (fr) Batterie à tension de sortie variable
EP2619027B1 (fr) Système de batterie doté d'un convertisseur indirect de tension continue à réglage variable
EP2619842B1 (fr) Réseau d'alimentation électrique et procédé pour charger au moins un élément accumulateur servant d'accumulateur d'énergie pour un circuit cc intermédiaire dans un réseau d'alimentation électrique
EP2769463B1 (fr) Unité convertisseur pour une machine asynchrone
EP2559094B1 (fr) Batterie à équilibrage d'éléments
EP2705589A2 (fr) Batterie comprenant au moins une suite de modules
EP2601737B1 (fr) Convertisseur d'énergie destiné à fournir de l'énergie électrique
DE102010027850A1 (de) Batterie mit frei wählbarer Anzahl von Batteriezellen
EP2619841B1 (fr) Procédé de mise en service d'un système de batteries doté d'un convertisseur indirect de tension continue
EP2705598A2 (fr) Unité d'entraînement pour moteur électrique
DE102010027856B4 (de) Batterie mit integriertem Pulswechselrichter
DE102011003940A1 (de) System mit einer elektrisch erregten Maschine
WO2013075903A2 (fr) Chaîne de modules de batterie pour l'entraînement d'un moteur à courant continu
WO2012152594A2 (fr) Double module de batterie
DE102010042718A1 (de) Verfahren zur Steuerung einer Batterie mit variabler Ausgangsspannung
WO2012079822A1 (fr) Unité de couplage et module de batterie pourvu d'une telle unité de couplage
EP2601736B1 (fr) Convertisseur d'énergie multiphase destiné à fournir de l'énergie électrique
WO2012097899A1 (fr) Unité d'entraînement électrique
DE102014006449A1 (de) Integrierter Mehrphasenabgriff einer Batterie

Legal Events

Date Code Title Description
122 Ep: pct application non-entry in european phase

Ref document number: 12718958

Country of ref document: EP

Kind code of ref document: A2