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WO2012062255A2 - Batterie modulaire à sécurité intrinsèque pour applications sujettes à des accidents - Google Patents

Batterie modulaire à sécurité intrinsèque pour applications sujettes à des accidents Download PDF

Info

Publication number
WO2012062255A2
WO2012062255A2 PCT/DE2011/001751 DE2011001751W WO2012062255A2 WO 2012062255 A2 WO2012062255 A2 WO 2012062255A2 DE 2011001751 W DE2011001751 W DE 2011001751W WO 2012062255 A2 WO2012062255 A2 WO 2012062255A2
Authority
WO
WIPO (PCT)
Prior art keywords
battery
module
modular
modules
modular battery
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.)
Ceased
Application number
PCT/DE2011/001751
Other languages
German (de)
English (en)
Other versions
WO2012062255A3 (fr
Inventor
Manfred Baumgaertner
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.)
VOLTABATTERIEN GmbH
Original Assignee
VOLTABATTERIEN GmbH
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 VOLTABATTERIEN GmbH filed Critical VOLTABATTERIEN GmbH
Publication of WO2012062255A2 publication Critical patent/WO2012062255A2/fr
Publication of WO2012062255A3 publication Critical patent/WO2012062255A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • H01M10/4207—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
    • H01M10/42—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
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/579—Devices or arrangements for the interruption of current in response to shock
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00308—Overvoltage protection
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • 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
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00306—Overdischarge protection
    • 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

  • Modern traction batteries have voltages up to 750 volts and currents up to 200 A. In some cases even higher voltages or currents may be needed. In the case of an accident could be in all these designs high-current and
  • This invention describes a battery that solves this problem, since their
  • the battery according to the invention consists of an interconnection of individual modules, which themselves have only voltages below the danger threshold.
  • a safety management system supplied with information by sensors and signal transmitters ensures that the modules are only switched on during normal operation and that only in this case can power be drawn. In the event of a fault, standby or maintenance, the power supply is switched off at the level of the battery modules so that dangerous voltages can not be present at any point in the battery.
  • the Central Battery Management Module sends a status signal, the "AH Clear Signal", at short intervals when properly operated.
  • the energy of the battery is stored in single cells.
  • One or more single cells are interconnected to battery modules.
  • Cells of different battery chemistries can be used to make the battery, e.g. Lithium-ion cells, lithium-iron-phosphate cells, other lithium-based electrode based cells, or redox systems, e.g. Zinc Gutzelien.
  • the individual cells thereby become battery modules in different ways
  • Figure 3 shows possible module versions. The smallest
  • Module unit consists of a single cell. Preferably, however, multiple cells are connected in series, so that appropriate module voltages can be generated.
  • 10 or 12 lithium iron phosphate cells with a cell voltage of 3.2V can be connected in series to form a module, resulting in 32V or 38V modules.
  • the individual lines can also be connected in parallel within a module, resulting in higher storage capacities or currents.
  • cells are both connected in series to achieve desired voltages, as well as connected in parallel to obtain desired currents or storage capacities. All combinations of series and rows are possible.
  • the module voltage should be below a level that can be potentially dangerous when in contact, eg at 36 V or 48 V.
  • Figures 1 and 2 show the structure of the battery. In each case a battery module is aggregated according to the invention with a switching module and a local battery management module to form a unit. These units are then connected in series.
  • a characteristic of the battery according to the invention is the switching module which is assigned in each case to a battery module.
  • the switching module is used to switch the relevant battery module on or off
  • the switching module consists of a control unit for signal generation and a switching component.
  • a switching component a relay, a contactor or a circuit breaker, e.g. to serve a MOSFET.
  • the control unit receives from the local battery management module a signal indicating the proper condition of the battery and the consumer
  • the Signa! is preferably given as a continuous pulse train. As long as the pulse train is received, the control unit generates the signal to energize the relay or the contactor. When equipped with a circuit breaker, it turns the MOSFET on and holds it on while the pulse signal is present.
  • the switching module is implemented as a parallel circuit of a circuit breaker with a relay.
  • a circuit breaker with a relay When batteries with inductive loads are used, very high voltages occur during the switch-off process. This requires that high quality and therefore expensive contactors or relays are used.
  • circuit breakers such as MOSFETs can be used. However, MOSFETs with correspondingly high reverse voltages still have quite high internal resistance, so due to the
  • the shutdown module can be switched on only for part of the battery modules connected in series.
  • single row can be shut down or switched on without the whole battery is de-energized.
  • Reserve circuits are realized, which correspond to the reserve tank in the classic motor vehicle.
  • the local battery management modules have the following classical tasks in the interest of a cycle-conserving current drain and cycle-conserving charge:
  • Active or passive systems can be used.
  • the local battery management modules acquire data from in the associated battery modules, such as the battery modules. Voltages or currents. In addition, they process signals from battery integrated sensors, e.g. the battery module temperature or injury or tampering with the module housing.
  • the data described are forwarded from the Local Battery Management Module to the Central Battery Management Module, forwarded by the latter to the Security Management Module and processed there.
  • the local battery management modules according to the invention have the task to process the "all-clear" and "Disconnecf signal, which is provided by the safety management via the central battery management available, and forward the switching signal to the associated Scha! Tmodui.
  • the switching modules can alternatively also be controlled directly by the central battery management.
  • the central battery management has the following classic tasks:
  • the central battery management module according to the invention has the following
  • Safety Management Module and the Local Battery Management Modules are on a shared data line. These components are used as e.g. to address a CA N-Bus system.
  • the safety management module collects and analyzes the data from battery-powered and - external signalers, data sources and sensors. On the basis of the signal position, the module checks whether a correct operating state is present. It also checks whether the battery should receive power, whether power should be fed back or whether the battery should be charged.
  • the security management module gives a release signal, the so-called "AI! Clear Signal.
  • the "AU Clear Signal is preferably a pulse train that is continuously transmitted as long as the proper operating state continues and an operation is performed.
  • the safety management system If signals are received from the internal or external signalers or sensors that indicate a fault or accident, eg from the airbag or the Molded Interconnect Device (MID) of the battery, the safety management system outputs a disconnect signal indicating the transmission of the all-clear signal. Signal immediately terminated This means that all switching modules immediately interrupt the current flow. Alternatively, the transmission of the "AH Clear signal" can be set in the event of a fault.
  • battery-internal sensors can monitor the temperature in the battery module as well as other data, e.g. to the integrity of the
  • Capture module housing
  • the warning signal is generated using a Molded Interconnect Device (MID).
  • MID Molded Interconnect Device
  • Molded interconnect devices are electronic components in which metal interconnects are injection-molded
  • Plastic carrier are applied.
  • a MID structure is applied to the surface of the module housing, small current flows or capacitances are created and monitored. A destruction of the housing produces a change which is output as a signal.
  • the battery internal sensors are preferably connected to the local battery management modules. These detect the signals and pass them on to the central battery management. Security relevant data becomes the
  • Signals from external signal transmitters and sensors as well as safety-related data from the vehicle control system are transferred to the safety management system, preferably via CAN bus. Examples are:
  • the central disconnection unit usually consists of a main contactor, which separates both phases. Alternatively, the concepts of the switching modules can be used.
  • the central switch-off unit is controlled by the central battery management system.
  • a cascading system in which first the main contactor is de-energized and then in quick succession the switching modules.
  • simpler relays can be used to insulate the modules. All modules can be physically separated as single-component components or can be understood as logical modules that are integrated units
  • the safety management and the central battery management module can be advantageously combined in a single unit.
  • the battery modules can preferably be assembled together with the switching module and the local battery management module in each case in a housing.
  • the housing of the overall battery may preferably be designed as a stable frame construction - e.g. in the manner of a drawer cabinet - with internal guide rails. On the guide rails, the battery modules are inserted in their own housing one behind the other in the compartments of the frame construction.
  • the front cover contains at the assigned positions of the compartments female contacts for power and cooling, which couple when closing the lid. So will the
  • the housing cover can preferably be made in ABS, GRP or PU sandwich with foam liner or as aluminum sandwich.
  • the MI D system can be applied to it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne une batterie dont les composants ne présentent pas de tensions élevées et donc pas de tensions potentiellement dangereuses, par exemple supérieures à 36 ou 48 V. Les tensions élevées requises, par exemple allant jusqu'à 750 V, et les courants élevés requis sont fournis uniquement en cas d'état de fonctionnement correct. Au repos ou en cas de maintenance, ainsi que lors de pannes ou d'accidents, les tensions ou les courants potentiellement dangereux ne sont pas présents à la sortie de la batterie ni à l'intérieur de cette dernière.
PCT/DE2011/001751 2010-11-02 2011-09-20 Batterie modulaire à sécurité intrinsèque pour applications sujettes à des accidents Ceased WO2012062255A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010050012.7 2010-11-02
DE102010050012 2010-11-02

Publications (2)

Publication Number Publication Date
WO2012062255A2 true WO2012062255A2 (fr) 2012-05-18
WO2012062255A3 WO2012062255A3 (fr) 2012-11-01

Family

ID=45935889

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2011/001751 Ceased WO2012062255A2 (fr) 2010-11-02 2011-09-20 Batterie modulaire à sécurité intrinsèque pour applications sujettes à des accidents

Country Status (2)

Country Link
DE (1) DE102011113798A1 (fr)
WO (1) WO2012062255A2 (fr)

Cited By (3)

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EP2901521A4 (fr) * 2012-09-28 2015-10-21 Byd Co Ltd Ensemble de batterie électrique
CN105977554A (zh) * 2015-02-26 2016-09-28 空中客车防卫和太空有限责任公司 电池组件
CN110271434A (zh) * 2018-03-15 2019-09-24 奥迪股份公司 用于机动车的电池和用于运行电池的方法

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CN110271434A (zh) * 2018-03-15 2019-09-24 奥迪股份公司 用于机动车的电池和用于运行电池的方法

Also Published As

Publication number Publication date
WO2012062255A3 (fr) 2012-11-01
DE102011113798A1 (de) 2012-05-03

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