EP3894271A1 - Accumulateur d'énergie pour un moyen de transport à entraînement électrique - Google Patents

Accumulateur d'énergie pour un moyen de transport à entraînement électrique

Info

Publication number
EP3894271A1
EP3894271A1 EP19832605.0A EP19832605A EP3894271A1 EP 3894271 A1 EP3894271 A1 EP 3894271A1 EP 19832605 A EP19832605 A EP 19832605A EP 3894271 A1 EP3894271 A1 EP 3894271A1
Authority
EP
European Patent Office
Prior art keywords
memory cells
cells
energy
connection arrangement
energy store
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.)
Pending
Application number
EP19832605.0A
Other languages
German (de)
English (en)
Inventor
Johannes Grabowski
Joachim Joos
Walter Von Emden
Andreas Keller
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3894271A1 publication Critical patent/EP3894271A1/fr
Pending 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/14—Preventing excessive discharging
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/15—Preventing overcharging
    • 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
    • B60L58/19—Switching between serial connection and parallel connection of battery modules
    • 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
    • B60L58/22—Balancing the charge of battery modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • 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
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/269—Mechanical means for varying the arrangement of batteries or cells for different uses, e.g. for changing the number of batteries or for switching between series and parallel wiring
    • 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
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • 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
    • 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
    • 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
    • H02J7/36—Arrangements using end-cell switching
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • 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 an energy store, in particular for an electrically drivable means of transportation.
  • the present invention relates to a flexible and energy-efficient mode of operation of an energy store.
  • interconnected battery pack active components that include an inverter, DC-DC converter, additional 12 V / 48 V batteries, power conversion units
  • the passive interconnection of the individual battery cells e.g. with a single source voltage of 3.7 V
  • the production-related differences in internal resistance and capacity also result in significantly different loads on the individual cells and possible further drifting apart during operation.
  • the capacity of the entire battery pack is thus determined based on the performance of the cells with the poorest state of health or the lowest state of charge, which necessitates a reserve that limits the usable capacity to 60% to 80% of the nominal capacity in order to avoid the harmful deep discharge of the cell to avoid the lowest capacity.
  • the present invention pursues the task of shifting the functionality into the individual cell, so that each individual cell can also be used optimally or optimally for an external power request (ferry operation, work operation or the like) or a power supply (charging operation, recuperation operation or the like ...) react and contribute if necessary.
  • the present invention proposes a system which, for example, has an ASIC, sensors and switches, which can be implemented on each individual battery cell.
  • intelligent battery cells can be used as the basic unit for the present invention.
  • the ASIC of the respective cell or system contains one
  • Memory / data memory that has a unique identification, so that each battery cell is uniquely assigned, and sensors, e.g. Temperature, currents, number of charge / discharge cycles, cell voltage and possibly occurring fault cells, e.g. Detect and save deep discharge, high temperatures, etc.
  • a bus system can enable communication from every single cell with the consumers or the charging station.
  • Active switches e.g. MOSFETs
  • An algorithm on each ASIC of a respective system of a respective cell can enable the respective cell to evaluate how the individual cell can contribute to the performance requirement or whether this is not sensible in the present case.
  • an energy store which has a housing, a first plurality of storage cells, a second plurality of storage cells, a first electrical connection arrangement, a second electrical connection arrangement and a switching device.
  • the housing can be made of plastic, for example
  • the memory cells of the first plurality of memory cells can be any type of memory cells. To ensure acid resistance and to be insensitive to corrosion.
  • the memory cells of the first plurality of memory cells can be any type of memory cells.
  • first electrical connection arrangement and the second electrical connection arrangement can be provided to supply external consumers with electrical energy from the energy stores or from the storage cells.
  • an electrical consumer can in particular be supplied with electrical energy independently of the second electrical connection arrangement.
  • the first electrical connection arrangement and the second electrical connection arrangement can be provided to supply external consumers with electrical energy from the energy stores or from the storage cells.
  • Connection arrangement can be connected while the second variety
  • Memory cells is connected to the second electrical connection arrangement.
  • the switching device is also set up to optionally electrically connect the first plurality of memory cells to the second plurality of memory cells. In this way, the energy, the voltage and / or the current strength of the storage cells can be selected via the first electrical one
  • the switching device can be set up as a function of an operating state of a machine or machine to be supplied with electrical energy by the energy store
  • the storage cells of the energy store can be different
  • Terminal voltage characteristics are energetically supplied, which improves the use of an energy store according to the invention compared to arrangements known in the prior art.
  • the first connection arrangement and / or the second connection arrangement can each have at least two electrical contacts, via which electrical energy of the memory cells can be transmitted.
  • electrical energy from the first plurality of storage cells to the second plurality of storage cells via the respective electrical contacts and / or to indicate electrical energy to consumers arranged outside the housing.
  • the electrical contacts are acted upon electrically by means of the switching device of the energy store.
  • energy cells When “energy cells” is referred to in the context of the present disclosure, this refers to the property of the plurality of storage cells that they are essentially designed to provide a large amount of energy. In other words, the storage cells referred to as energy cells have the highest possible energy capacity. In contrast to this, the term “power cells” refers to the large number of memory cells that are in the
  • the maximum power output of the power cells can be significantly higher than that of the aforementioned energy cells, in particular in comparison to their energetic capacity.
  • Energy storage particularly suitable and flexible to respond to requests for the provision of electrical energy.
  • the switching device can, for example, be set up to electrically decouple the first plurality of memory cells and the second plurality of memory cells from one another in response to an energy supply request from a first (external) consumer and to electrically connect the first plurality of memory cells or the second plurality of memory cells to the first connection arrangement.
  • the first consumer is thus electrically connected to the energy store and the memory cells of the first plurality of memory cells contained therein via the first connection arrangement.
  • the first consumer can be electrically decoupled from the second plurality of memory cells, so that the second plurality of memory cells are not loaded by the first consumer and are available without restriction for supplying other external consumers. In this way, no compromises have to be made in the supply of electrical consumers, so that, for example, voltage-sensitive electrical consumers can be supplied by a large number of storage cells which are not supplied by another (e.g.
  • the electrical characteristics of the first consumer can thus be satisfied as best as possible by the first plurality of memory cells.
  • the switching device of the energy store according to the invention can be set up to electrically connect the first consumer to the first plurality of memory cells or the second plurality of memory cells depending on its nominal voltage. In other words, either the actual power consumption of the first electrical consumer can decide whether the switching device considers it helpful to electrically connect the first consumer to the second plurality of memory cells instead of the first plurality of memory cells, or both to the first plurality instead
  • the switching device can be activated even before electrical energy is drawn from the energy store
  • the first consumer can be better supplied with electrical energy via the first plurality of storage cells and / or via the second plurality of storage cells. This can also be done taking into account other consumers that are currently being supplied with energy from the electrical energy store or are to be supplied with energy from the electrical energy store in the future. In this way, the electrical consumers to be supplied can be used as best as possible
  • contained storage cells are supplied with electrical energy.
  • each memory cell can have an evaluation unit, which is set up in response to a request and depending on its own state of health and / or state of charge to decide whether it should connect to the first electrical connection arrangement and / or to the second electrical connection arrangement.
  • the evaluation unit can be understood as “intelligence” of the respective memory cell, so that there are a large number of intelligent memory cells within the energy store according to the invention.
  • the communication unit can accordingly the evaluation unit can be contained in each memory cell.
  • a respective sensor unit within the memory cell can be linked to the evaluation unit in terms of information technology.
  • the storage cell can monitor its own performance, its own state of charge and its own state of health in the best possible way and, depending on the aforementioned variables, independently decide whether it participates in the energy supply of external consumption or not.
  • This modularization also makes it possible to flexibly maintain an energy store according to the invention, since only electrical connections have to be connected between the old storage cells and an exchanged / newly added storage cell, while communication with a higher-level evaluation unit which may be further away is eliminated.
  • the evaluation unit can be set up in response to an electrical connection of another memory cell to the first electrical connection arrangement, to decide whether it connects to the first electrical connection arrangement or Not. In other words, it can
  • Memory cell determine the switching process (for example, by its own electrical sensor system), and in response to it decide again whether or not it makes sense to participate in the energetic supply of the electrical consumer.
  • the memory cell is able, by means of its evaluation unit, in combination with the invention
  • Energy storage to make a decentralized decision as to whether it is electrically connected to a further storage cell and / or an external electrical consumer via the switching device of the energy storage.
  • the sensor system mentioned above can include a temperature sensor and alternatively or additionally a voltage sensor (in particular an undervoltage sensor) and alternatively or additionally a sensor / counter for determining a number of cycles of the memory cell and alternatively or additionally a current sensor Have measurement of the cell currents of the memory cell.
  • the sensor system can carry out a cell spectroscopy of the memory cell in that it electrically operates the memory cell in a predefined manner loaded and the response of the memory cell depending on the load is determined using a predefined reference. A conclusion on the state of health and / or the cell chemistry can be drawn from the result of the determination.
  • the energy store according to the invention can, for example, be provided in an electrically drivable means of transportation.
  • the electrical energy store can be provided in a work machine and / or to support an island network.
  • FIG. 1 is a schematic representation of an embodiment of an energy storage device according to the invention.
  • FIG. 2 is a schematic representation in more detail
  • Embodiments for switching devices according to the invention in the form of switching matrices in the form of switching matrices.
  • Figure 1 shows an embodiment of an inventive
  • Connection arrangements 8, 9 are connected to a first electrical consumer 11 and a second electrical consumer 12.
  • Communication bus lines 15 connect the consumers 11, 12 to cell modules 20a, 20b, 20c, 20d arranged inside the housing 2.
  • the cell modules 20a are designed as power cells. Their memory cells 3a, 3b are capable of delivering comparatively high electrical outputs compared to their storage capacity. Energy cells 4a, 4b of the cell modules 20b, on the other hand, are capable of one compared to the maximum power that they can deliver to store a large amount of energy.
  • Super-caps 5a, 5b of the cell modules 20c are set up to deliver extremely high power at short notice with particularly low electrical losses and lower capacity. Also are
  • Cell modules 20d with shunts 6a, 6b are provided, which offer a flexible possibility for converting (“annihilating”) electrical energy within the
  • the switching devices 13 of the cell modules 20a to 20d enable the ASICs 7 as evaluation units to electrically connect the power cells 3a, 3b, the energy cells 4a, 4b, the super-caps 5a, 5b and the shunts 6a, 6b to a central switching device 10. In this way, the switching device 10, on which in
  • Connection arrangements 8, 9 to supply the external consumers 11, 12 with electrical energy.
  • Sensors 14 within the cell modules 20a to 20d enable the voltages or temperatures and the flowing currents within the cell modules 20a to 20d to be monitored.
  • the memory cells 3a, 3b, 4a, 4b, 5a, 5b can also use the respective sensors 14 to determine the undervoltage, number of cycles and cell chemistry (e.g. using a
  • the respective ASIC 7 of the cell modules 20a to 20d can receive or communicate information about the current or the intended operating state of the external consumers 11, 12 via the communication bus 15. Information about the states of the
  • Cell modules 20a to 20d and the previous communication can be stored by the ASIC 7 of the respective cell module 20a to 20d.
  • the ASIC 7 can store information on cell profiles and behavior models for the cell modules 20a to 20d.
  • Figure 2 shows a possible implementation of an inventive
  • FIG. 1 has a plurality of cell modules 20a and 20b and a switching device 10 shown in detail in the form of a switching matrix.
  • the first plurality of memory cells within the cell modules 20a and 20b can be bridged via a respective switch S.
  • the electrical contacts 8a, 8b and 9a, 9b of the electrical connection arrangements 8, 9 arranged on the outside of the housing can be flexibly electrically connected to any number of cell modules 20a, 20b via the plurality of switches provided within the switching device 10, and thus flexibly with a suitable number of storage cells are supplied with energy.
  • FIG. 2 shows a possible implementation of the dynamic interconnections of the battery cells on battery strings. Each cell controls the switches associated with it.
  • a string denotes the switches shown one above the other within the switching device 10.
  • the cells of the cell modules 20a, 20b can dynamically hook into them. If none of the cell modules 20a, 20b decides to latch electrically into the respective string, the short-circuit switch S automatically closes.
  • the strings can generate different voltages with the different memory cells.
  • a feedback via the common bus (see FIG. 1) enables the individual cell modules 20a, 20b to make the decision taking into account the decision of the other cells.
  • All of the cells can be operated at the optimum operating point thanks to the structure mentioned above.
  • the cell stress can vary according to the current
  • BMS Battery management systems
  • DC-DC converters DC-DC converters

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

Abstract

L'invention concerne un accumulateur de chaleur (1) comprenant un boîtier (2), une première pluralité de cellules de mémoire (3a, 3b), une deuxième pluralité de cellules de mémoire (4a, 4b), un premier ensemble de raccordement (8) électrique, un deuxième ensemble de raccordement (9) électrique et un dispositif de commutation (10). Le dispositif de commutation (10) est mis au point pour relier la première pluralité de cellules de stockage (3a, 3b) au premier ensemble de raccordement (8) électrique, pour relier la deuxième pluralité de cellules de stockage (4a, 4b) au deuxième ensemble de raccordement (9) électrique, et/ou pour relier la première pluralité de cellules de stockage (3a, 3b) à la deuxième pluralité de cellules de stockage (4a, 4b).
EP19832605.0A 2018-12-14 2019-12-16 Accumulateur d'énergie pour un moyen de transport à entraînement électrique Pending EP3894271A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018221836.6A DE102018221836A1 (de) 2018-12-14 2018-12-14 Energiespeicher für ein elektrisch antreibbares Fortbewegungsmittel
PCT/EP2019/085277 WO2020120792A1 (fr) 2018-12-14 2019-12-16 Accumulateur d'énergie pour un moyen de transport à entraînement électrique

Publications (1)

Publication Number Publication Date
EP3894271A1 true EP3894271A1 (fr) 2021-10-20

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US (1) US20220029211A1 (fr)
EP (1) EP3894271A1 (fr)
CN (1) CN113195301A (fr)
DE (1) DE102018221836A1 (fr)
WO (1) WO2020120792A1 (fr)

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Publication number Priority date Publication date Assignee Title
WO2024101334A1 (fr) * 2022-11-10 2024-05-16 克彦 近藤 Système de génération d'énergie solaire et procédé de commande

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748605B1 (fr) * 1996-05-07 1998-08-07 Gerard Lemaire Procede de fabrication d'un generateur elementaire de pile ou d'accumulateur intelligent
AT507703B1 (de) * 2008-12-22 2012-06-15 Moove Gmbh E Energiespeicheranordnung und verfahren zum betrieb einer derartigen anordnung
DE102011087031A1 (de) * 2011-11-24 2013-05-29 Sb Limotive Company Ltd. Batteriemodulstrang
DE102014200336A1 (de) * 2014-01-10 2015-07-16 Robert Bosch Gmbh Elektrochemischer Speicherverbund
DE102014208543A1 (de) * 2014-05-07 2015-11-12 Robert Bosch Gmbh Batteriezelleinrichtung mit einer Batteriezelle und einer Überwachungselektronik zum Überwachen der Batteriezelle und entsprechendes Verfahren zum Betreiben und Überwachen einer Batteriezelle
KR101553063B1 (ko) * 2015-01-20 2015-09-15 주식회사 제이에스영테크 하이브리드 에너지 저장 모듈 시스템
US10087903B2 (en) * 2017-01-13 2018-10-02 Ford Global Technologies, Llc Vehicle energy management

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US20220029211A1 (en) 2022-01-27
DE102018221836A1 (de) 2020-06-18
CN113195301A (zh) 2021-07-30

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