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
• • 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
  • H01M16/00—Structural combinations of different types of electrochemical generators
• • 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
  • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
  • H02J7/0025—Sequential battery discharge in systems with a plurality of batteries
• • 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
  • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries

Definitions

• the present invention relates to an energy storage device and a method of operating the same.
• the invention will be described in the context of galvanic cells and the supply of automotive drives. It is pointed out that the invention can also be used independently of the type of galvanic cells or independently of the type of consumer supplied.
• the invention is therefore based on the object to increase the usable operating life of the energy storage device or its galvanic cells. This is achieved according to the invention by the teaching of the independent claims concerning an energy storage device and a method for its operation. Preferred developments of the invention are the subject of the dependent claims.
• the object is achieved with an energy storage device which has one or more first energy storage devices and one or more second, in particular has special electrochemical energy storage devices.
• the energy storage devices are provided for discharging and receiving an electric current.
• the energy storage device also has a control device, which is provided to control the delivery and the reception of an electrical current through at least one of the energy storage devices.
• the energy storage device is characterized in that the energy density of a second energy storage device is higher than the energy density of a first energy storage device. In the present case, the energy density is determined as the ratio of the energy stored in the energy storage device in a completely charged state and the weight of the energy storage device.
• the control device is provided to control predominantly one or more first energy storage device for emitting an electric current, if the intensity of an electric current exceeds a predetermined current limit value.
• an energy storage device in the context of the invention is a device to understand, which serves for the delivery, for receiving and storing energy to a consumer.
• the energy is emitted from the energy storage device as an electric current.
• the energy storage device has one or more first energy storage devices, one or more second energy storage devices and a control device. These devices are in particular electrically and / or mechanically interconnected.
• the energy storage device comprises a plurality of first and second energy storage devices, wherein the number of first energy storage devices may differ from the number of second energy storage devices.
• a first energy storage device in the sense of the invention is to be understood as a device which is suitable in particular for dispensing, for receiving and for storing energy, in particular an electric current.
• the first energy storage device as electrical or formed electrochemical energy storage device.
• the first energy storage device is designed as a galvanic cell, coil or capacitor.
• a first, designed as a galvanic cell energy storage device preferably has at least one anode, a cathode and a separator. The separator receives an electrolyte and is disposed between the anode and the cathode.
• the electrolyte has lithium ions.
• the first energy storage device preferably has a thin-walled enclosure, in particular for separating the contents from atmospheric influences.
• two current conductors of the first energy storage device extend at least partially from the envelope thereof.
• a first energy storage device is designed to be able to absorb and / or release a higher electric current permanently and without cumulative damage than a second energy storage device.
• the internal resistance of a first energy storage device is lower than the internal resistance of a second energy storage device.
• a second energy storage device is to be understood as meaning a device which is suitable, in particular, for dispensing, receiving and storing energy, in particular an electrical current.
• the second energy storage device is designed as an electrical or electrochemical energy storage device.
• the second energy storage device is designed as a galvanic cell with at least one anode, a cathode and a separator.
• the separator receives an electrolyte and is located between the anode and the cathode.
• the electrolyte has lithium ions.
• the second energy storage device has a thin-walled enclosure, in particular for the separation of the contents of atmospheric influences.
• two current conductors of the second energy storage device extend at least partially from the envelope thereof. - A -
• a control device in the sense of the invention is understood to mean a device which is provided to control the release and the absorption of energy, in particular of an electrical current, by at least one of the energy storage devices.
• the control device preferably controls the energy storage devices associated with the energy storage device such that, in particular, higher powers or electrical currents are preferably exchanged with one or more first energy storage devices.
• the control device is designed to control all existing energy storage devices.
• the control device has a plurality of control units, which are each associated in particular with a first energy storage device and a second energy storage device.
• the control device is associated with power switches or power regulators which pass or switch the electrical currents from the first and second energy storage devices, particularly preferably also the total current.
• control device is provided to control the power switch or power controller.
• control device or the control elements and the circuit breaker or power controller are integrally formed.
• control device and / or the controls are connected to a signal bus.
• the energy storage device has one or more
• a measuring device in the sense of the invention is to be understood as meaning a device which temporarily detects a measured value, in particular, for at least one of the energy storage devices.
• this measured value is representative of the internal resistance of an energy storage device, its state of charge, its temperature and / or the electrical current, which is supplied or removed from the energy storage device.
• the measuring device temporarily provides the control device with one or more measured values.
• the measuring device has one or more measuring sensors, which in particular the individual energy storage devices, the control device, circuit breakers or Leis- tion controllers, the heat conducting device, the connection devices and / or other devices are assigned.
• the at least one measuring device and / or its sensor are connected to a signal bus.
• the measuring device has at least one thermocouple, a current measuring device and / or a voltage measuring device.
• a first and a second energy storage device differ by their energy densities.
• Energy density in the sense of the invention means the ratio of the energy stored in an energy storage device in the fully charged state and the weight of this energy storage device.
• the fully charged state in the context of the invention is to be understood that the charge of an energy storage device is dimensioned as large as possible, without achieving the state of an overload, which in particular could lead permanently to damage or premature aging of the energy storage device.
• the energy density of a second energy storage device is higher than the energy density of a first energy storage device.
• the quotient of the energy density of a first energy storage device and the energy density of a second energy storage device is less than 1, preferably less than 0.9, preferably less than 0.8, preferably less than 0.7, preferably less than 0.6, preferably less than 0.5, preferably less than 0.4, preferably less than 0.3, preferably less than 0.2, more preferably less than 0.1.
• the aforementioned quotient is more than 0.01. If the energy storage device has a multiplicity of first and second energy storage devices, the stated values of the quotient of the energy densities also apply to the unmixed average energy densities of the first and second energy storage devices.
• the control device is provided to temporarily process a recorded measured value and / or its time profile, in particular taking into account Consideration of predetermined comparison values and / or their predetermined time courses.
• the control device is provided to process a measured value to the temperature of an energy storage device and / or to an electrical current for driving an energy storage device.
• the difference values d are used in particular for controlling the energy storage devices. In most cases, in particular during the coverage of a base load by the energy storage device, a difference value d to an energy storage device is negative. If, in a first case, a detected current intensity in particular to a second energy storage device reaches or exceeds a predetermined current limit value, then the control device limits the current to be emitted or to be absorbed by this second energy storage device. If, in a second case, the detected temperature, in particular of a second energy storage device, reaches or exceeds a predetermined current limit value, then the control device limits the current to be emitted or to be absorbed by this second energy storage device.
• the control device In order to meet the power requirement or the current consumption, in this first case, the control device predominantly controls one or more first energy storage devices for receiving or discharging.
• the quotient "q" from one of a first energy storage device emitted or recorded electrical current I 1 and one of a second energy storage device or recorded electrical current I 2 varies in particular depending on the power requirement or the operating state of the supplied consumer:
• the quotient q in particular fluctuates over time.
• q is temporarily between 0.01 and 1000, preferably between 0.1 and 100, particularly preferably between 1 and 10.
• This calculation of q and the mentioned limit values also apply to a plurality of first and second energy storage devices.
• the differences d are calculated as required, in particular for every second energy storage device. Particularly preferred are
• the control device mainly controls, depending on the difference d, the one or more first energy storage devices and / or the one or more second energy storage devices for delivering or receiving an electric current. If the amount of power or the strength of the electrical current exceeds a predetermined limit, in particular a predetermined current limit, the control device is provided to remove or supply the energy predominantly one or more first energy storage devices.
• the control device is provided, for power values or electrical currents which fall below a predetermined limit value or current limit value, to remove or supply the energy predominantly to one or more second energy storage devices.
• the control device is provided to supply or remove the energy exclusively first energy storage devices or second energy storage devices, depending on the amount of power or the current intensity of the electric current.
• the control device is provided, one or more of the energy storage device associated electrical resistors with an electrical current from one or more first and / or one or more second energy storage devices to control.
• a current limiting value is to be understood as meaning a limit value which, as a rule, should not exceed the current intensity of an electrical current which is supplied or removed from an energy storage device. Exceeding this current limit can cause premature aging of the charged energy storage device and / or lead to serious damage to the charged energy storage device.
• a current limit is selected depending on the type, the age and / or the temperature of the respective energy storage device.
• the control device for a first or a second energy storage device each have a plurality of limit values or
• the current limit of a first energy storage device about 500, 200, 150, 100, 50, 20 amps, depending on the design, aging and / or temperature.
• the current limit value of a second energy storage device is approximately 250, 150, 100, 50, 20 amperes, depending on the design, aging and / or temperature. Depending on the design, aging and temperature, the current limit values may also be higher.
• the current limit value of a second energy storage device is lower than the current limit value of a first energy storage device, in particular due to the design.
• Electric currents which are supplied or removed from an energy storage device, also cause an electric heating power. This heat output can lead to an increase in temperature in the burdened with the electric current energy storage device with insufficient heat dissipation. Electrochemical energy storage devices generally age faster increasing temperatures, probably due to irreversible chemical reactions.
• the control device is provided to remove or supply higher powers or stronger electrical currents predominantly one or more first energy storage device, a second energy storage device is advantageously exposed to lower thermal loads. In particular, the aging of a second energy storage device is reduced, the usable operating time of the energy storage device is increased, and the underlying object is achieved.
• an energy storage device has a holding device, a connection device and / or a heat conducting device.
• the heat conducting device and the energy storage devices are connected to the holding device.
• the holding device is designed as a base plate, frame or housing.
• the energy storage devices are accommodated in the holding device with elastic or vibration damping elements.
• the heat-conducting device and the energy storage devices are preferably received by the holding device in such a way that they contact the heat-conducting device in a heat-conducting manner.
• connection device is used in particular for the electrical connection with the supplied consumer.
• a connection device with one or more Stromleit raiseden preferably connected to at least one connection cable or a busbar.
• the connection device has one or more connection terminals.
• the connection device particularly preferably has two connection terminals of different polarity.
• the heat conducting device is preferably connected in a heat-conducting manner to the at least one first energy storage device, particularly preferably to all energy storage devices of the energy storage device.
• heat-sensitive components of the control device are thermally conductively connected to this heat conducting device. These heat-sensitive components of the control device are, in particular, circuit breakers or power regulators which pass or switch the electrical currents out of the energy storage devices, if appropriate also the total current.
• the heat-conducting device is flowed through or flowed through by a coolant.
• the heat-conducting device preferably has surface-enlarged areas, particularly preferably cooling fins and / or at least one channel for the coolant.
• the energy storage devices are formed substantially cuboid and touch the heat-conducting device each having a boundary surface.
• the heat-conducting device is preferably designed with a plurality of heat-conducting bodies. These heat-conducting bodies are preferably arranged in this holding device between two rows of essentially cuboid energy storage devices, and have at least one channel and / or at least one surface-enlarged region.
• a heat-conducting body flows against or flows through a coolant.
• the heat-conducting body preferably has surface-enlarged areas, particularly preferably cooling fins and / or at least one channel for the coolant.
• the energy storage device further comprises at least one current measuring device, which is preferably arranged between the connection device and the energy storage devices.
• the energy storage device has a central current measuring device which provides information about the summed current taken from the energy storage device.
• the energy storage device is formed with a heat conducting device.
• the energy storage devices with the heat Conductor connected thermally conductive.
• the first energy storage device is preferably arranged between the heat conducting device and the second energy storage device.
• the energy storage devices are preferably formed substantially cuboid.
• a particularly space-saving arrangement of the devices can be achieved, wherein a first energy storage device can deliver heat both to the heat conducting device and to the second energy storage device.
• a first energy storage device uses the heat capacity of a heat-conducting second energy storage device.
• advantageously peaks in the temperature profile of a first energy storage device can be reduced.
• control device is provided to initiate an electric current between at least two of the energy storage devices at predetermined conditions.
• control device is provided to initiate an electric current between one or more first energy storage device and one or more second energy storage device under predetermined conditions.
• control device is provided to initiate an electrical current between a first energy storage device and a second energy storage device under predetermined conditions.
• Predetermined conditions are present in particular if a larger amount of energy has been taken from a first energy storage device. This is the case, in particular, when the drive of a motor vehicle supplied by the energy storage device has accelerated or accelerated it over a minimum period of time.
• the drive has been supplied predominantly by at least one first energy storage device.
• the control device is preferably provided, in particular after evaluation of measured values, in particular a current intensity and / or a current-time integral, and comparison with a current limit value and / or a predetermined charge quantity, a markedly reduced state of charge of a first energy storage device. to accept.
• the control device initiates a current from at least one second energy storage device to at least one first energy storage device until, in particular, a desired charge state of the at least one first energy storage device is reached .
• Predetermined conditions are also present when energy has been supplied to a first energy storage device by the regeneratively operated drive motor, in particular during deceleration of a motor vehicle and / or its overrun operation.
• the braking energy stored predominantly in at least one first energy storage device could lead to an undesirably high charge of the first energy storage device.
• the control device is provided to initiate a flow from the first energy storage device to a second energy storage device, in particular for reducing the charge of the at least one first energy storage device.
• the charge capacity of a first energy storage device is adapted to the charge capacity of a second energy storage device.
• the charge capacity of a first energy storage device is dimensioned smaller than the charge capacity of a second energy storage device.
• the charge capacity of a first energy storage device is less than two thirds of the charge capacity of a second energy storage device.
• summed charge capacity of all first energy storage devices is dimensioned smaller than the summed charge capacity of all second energy storage devices.
• the energy storage device is equipped with more second energy storage devices as the first energy storage devices. The adaptation of the charging capacities takes place in particular for the consideration of underlying operating profiles of the motor vehicle.
• the summed charging capacity of the first energy storage devices contributes to a lesser proportion of operating states with a high power output to the drive motor, in particular a motor vehicle. voltage.
• an energy storage device is equipped in anticipation of operation with a greater proportion of acceleration travel and / or higher loads with an overall higher charge capacity in the form of first energy storage devices.
• this summed charging capacity of the first energy storage device is less than one third of the total charge capacity of the energy storage device, preferably less than a quarter of this total charge capacity, preferably less than one fifth of the total charge capacity, more preferably less than one tenth of the total charge capacity, but at least more than a fiftieth of the total load capacity.
• the proportion of the charge capacity of the first energy storage devices to the total charge capacity of the energy storage device is formed by the ratio of the numbers of the first and the second energy storage devices.
• control device is signal-connected to a superordinate control, in particular of the motor vehicle or the supplied machine or system.
• the control device is provided to exchange at least temporarily at least one predetermined signal with the superordinate control.
• signals are exchanged which provide information about operating states of the energy storage device, about the progress of various processes, such as charging or discharging processes relating to energy storage devices, error messages, etc.
• the higher-level controller transmits signals to the control device which provide information about the maximum permissible power consumption ancillary components of the motor vehicle, ancillary components of the plant or ancillary components of the machinery.
• the control device is associated with a memory device.
• This memory device is intended in particular for storing operating data, predetermined limit values, predetermined current limit values, predetermined temperature limit values, parameter profiles, messages regarding desired and undesired operating states of the energy storage device and / or error messages.
• the halt of the memory devices from a higher-level control readable and / or overwritten, especially during maintenance operations.
• At least a first energy storage device and at least one second energy storage device are at least partially, preferably predominantly, particularly preferably completely surrounded by a housing.
• first energy storage device and one second energy storage device are at least partially surrounded by a housing.
• at least three energy storage devices are at least partially surrounded by a housing.
• the housing is in several parts, in particular formed with a first molded part and a second molded part.
• the moldings are provided to be connected to each other in particular cohesively and / or non-positively to the energy storage devices.
• the second molded part is in particular thermally conductive with the first energy storage device, particularly preferably with all E nergie Appador wornen connected.
• the second molded part is at least partially formed with a metallic material.
• the second molded part with the heat conducting device of the energy storage device is connected in particular thermally conductive.
• the second molded part is at least partially coated with an electrically insulating material, in particular on the energy storage devices facing side.
• the housing has two connection devices and / or a control device or a control element.
• the second molded part is designed as a container and the first molded part as a corresponding cover.
• at least the second molded part is adapted to the shape of the energy storage devices to be accommodated.
• at least one molded part is designed by means of a shaping process, in particular a forming process.
• At least one electrode of an energy storage device has a compound of the formula LiMPO 4 , where M is at least one transition metal cation of the first series.
• the transition metal cation is selected from the group consisting of Mn, Fe, Ni and Ti or a combination of these elements.
• the compound has a parent olivine structure.
• At least one energy storage device preferably has a separator which is not or only poorly electron-conducting and which consists of an at least partially permeable carrier.
• the support is preferably coated on at least one side with an inorganic material.
• an organic material is preferably used, which is preferably designed as a non-woven fabric.
• the organic material preferably formed with a polymer, and more preferably polyethylene terephthalate (PET) is coated with an inorganic, ion conducting material, which is preferably ionically conductive in a Temperartur Siemens of 40 0 C to 200 0 C.
• the inorganic, ion-conducting material preferably comprises at least one compound from the group of oxides, phosphates, sulfates, titanates, silicates, aluminosolizates with at least one of the elements Zr, Al, Li, more preferably zirconium oxide.
• the inorganic, ion-conducting preferably comprises at least one compound from the group of oxides, phosphates, sulfates, titanates, silicates, aluminosolizates with at least one of the elements Zr, Al, Li, more preferably zirconium oxide.
• the inorganic, ion-conducting preferably comprises at least one compound from the group of oxides, phosphates, sulfates, titanates, silicates, aluminosolizates with at least one of the elements Zr, Al, Li, more preferably zirconium oxide.
• the inorganic, ion-conducting preferably comprises at least one compound from the group
• an energy storage device with at least one first energy storage device, a second energy storage device and a control device is operated such that the control device for emitting an electric current, in particular with a current above a predetermined current limit, preferably at least drives a first energy storage device.
• the control device preferably processes at least one signal of at least one measuring device, in particular an ammeter, wherein the signal gives information in particular about the current strength of the electrical summation current taken from the energy storage device. If the measured sum current exceeds a predetermined current limit value, the control device controls the energy storage devices in such a way that the current is taken predominantly from the at least one first energy storage device.
• the control device In this operating state, electrical power or electrical current is taken from the second energy storage device only up to the level of the maximum current intensity permissible for the second energy storage device. If the electrical current demanded of the energy storage device falls below a predetermined current limit value, the control device predominantly activates the second energy storage device for delivering this current.
• the base load demanded of the energy storage device is provided predominantly by the at least one second energy storage device, whereas load peaks are operated with considerable contribution of the at least one first energy storage device.
• the electric heating power due to a current drain from a second energy storage device and thus their temperature are limited.
• the aging of a second energy storage device can be reduced, in particular by irreversible chemical reactions, and the service life of a second energy storage device can be increased.
• the energy storage device is operated such that the control device initiates an electric current between at least two of the energy storage devices at predetermined conditions.
• the control device initiates a current between a first energy storage device and a second energy storage device.
• Predetermined conditions exist when a first energy storage device is significantly discharged, in particular when the current charge of the first energy storage device is less than half of the allowable charge.
• the control device processes at least one signal of at least one measuring device, in particular of an ammeter, wherein the signal provides information in particular on the state of charge of the first energy storage device in comparison with predetermined limit values.
• the first energy storage device is supplied with energy or electric current from a second energy storage device.
• the first energy storage device for a later, higher load, in particular an acceleration ride or ride up a motor vehicle prepared.
• a predetermined condition is also present when energy and / or coasting operation, in particular supplied by a regeneratively driven drive motor of a motor vehicle during a deceleration process, is supplied to a first energy storage device.
• the control device With the introduction of a current from this first energy storage device to the second energy storage device by the control device, an overcharge of the first energy storage device can be reduced.
• damage or aging of a first energy storage device is reduced.
• the energy storage device is associated with a resistor. This serves in particular for reducing the charge of an energy storage device.
• the control device for partially discharging an energy storage device controls this resistance.
• an energy storage device is operated such that in particular during a charging process of a particular second energy storage device whose electrical voltage, in particular their terminal voltage is monitored.
• a measuring device temporarily detects the electrical voltage U n of one or more, in particular second, energy storage devices, in particular during a charging process.
• the measuring device provides the acquired measured values, in particular detected terminal voltages of the control device.
• the control device determines one or more second difference values d 2 .
• d 2 U K -U g
• a second difference value d 2 is usually negative.
• the control device is provided to control a charging process of an energy storage device as a function of this difference value c / 2 . If a second difference value d 2 approaches 0 or becomes positive, the control device preferably interrupts the further supply of energy.
• a predetermined voltage limit U 9 is selected in particular as a function of the type, aging and / or temperature of an energy storage device.
• the voltage limit U 9 is slightly higher than the rated voltage or the electrochemical voltage of an energy storage device selected.
• the voltage limit U is 9 to 120%, 115%, 110%, 105% of the rated voltage of the energy storage device.
• a lower voltage limit U 9 is selected for connection of a charging process.
• one or more second energy storage devices are each supplied at least temporarily, in particular during a charging process, with a time-varying, in particular pulsed, electrical current.
• one or more first energy storage devices at least at times, in particular during a charging process each fed an electric current of substantially constant current.
• FIG. 1 shows schematically an embodiment of an energy storage device according to the invention with supplementary devices
• 2 shows schematically further embodiments of inventive energy storage devices with multi-part housings.
• FIG. 1 shows schematically an embodiment of an energy storage device 1 according to the invention with some supplementary devices. Therein, control lines 21, 21 a, 21 b, 22, 24, 24 a, 27, 27 a drawn by dashed lines.
• the energy storage device 1 has a plurality of first energy storage devices 2 and a plurality of second energy storage devices 3, which contact the heat conducting device 7 thermally conductive.
• the energy storage devices are substantially parallelepiped-shaped and in each case touch the heat-conducting device 7 with a boundary surface.
• Both the heat-conducting device and the first energy storage device 2 each have a thermocouple 8, 8a. These are only representative of a variety of thermocouples and other measuring devices shown. These are connected to the control device 4 via control lines 21, 21a.
• the control device 4 is assigned a memory device 9 in which data, current limit values, operating profiles, error messages, etc. are stored.
• the control device 4 is signal-connected via a connecting line 22 to a higher-level control, not shown.
• the individual energy storage devices 2, 3 are connected via power cables 25, 25a and via power switches 26, 26a to central power lines 23, 23a. These power switches 26, 26a are actuated by the control device 4 via control lines, not shown.
• the central power lines 23, 23a open into the connection devices 6, 6a, which are connected at least indirectly to the electrical load. Not shown are a variety of current measuring devices, which detect the current in the connecting cables 25, 25 a and provide the control device 4 available. Depending on the design, these current measuring devices can also be formed in one piece with the circuit breakers 26, 26a.
• the central power line 23a has a central flow meter 8b for detecting the sum flow provided to the consumer on. Via the signal line 21b, the central ammeter 8b provides the control device 4 with at least one measured value.
• the control device 4 processes the signals of various measuring devices 8, 8a, 8b and actuates the power switches 26, 26a via control lines 27, 27a.
• these power switches 26, 26a are designed as power regulators which allow the passage of a limited current.
• the second energy storage devices are designed as electrochemical cells.
• the first energy storage devices are designed as electrochemical cells.
• the first energy storage devices 2 are designed as capacitors or coils whose energy densities are lower than the energy densities of the second energy storage devices 3.
• the first energy storage devices 2 designed as coils or capacitors are capable of delivering or receiving significantly larger currents.
• the consumer can, for a limited time, advantageously be provided with significantly larger currents than if the energy storage device 1 had only second energy storage devices 3.
• FIG. 2 shows further embodiments of energy storage devices according to the invention. These are characterized in that a first energy storage device 2 and a second energy storage device 3 are accommodated by a housing 10.
• the housing 10 preferably touches the energy storage devices 2, 3 in particular thermally conductive, although not shown in the figure.
• the energy storage devices 2, 3 are forced into the housing 10 to improve the thermal contact.
• All embodiments of FIG. 2 have a control device 4 or at least one control element which exchanges / exchanges signals at least temporarily with other control devices or control elements.
• the control device 4 and not shown circuit breaker or power regulator are integrally formed.
• a Energy storage device according to Figure 2 represents a quasi a smallest unit, which in any number can be linked together in particular electrically and arranged geometrically to each other.
• FIG. 2 a shows a further embodiment of an energy storage device according to the invention.
• This has a first energy storage device 2, a second energy storage device 3, a control device 4, a housing 10 or its second molded part 10b and two terminals 6, 6a.
• the circuit breaker or power controller and the first designed as a lid molding of the housing 10.
• the second mold part 10b of the housing 10 is formed of sheet metal and enclosing the energy storage devices 2, 3 such that the devices are biased against each other. Thus, the heat conduction through the boundary surfaces of the energy storage devices 2, 3 is improved.
• FIG. 2b schematically shows a side view of the embodiment according to FIG. 2a.
• the control device 4 is integrally formed with the power regulators or circuit breakers, not shown, and the terminals 6, 6a.
• the components can also be constructed discretely.
• the power switches or power regulators, not shown, are preferably connected in a heat-conducting manner to the second molded part 10b.
• 2c schematically shows a modification of the embodiment of the energy storage device according to FIGS. 2a and 2b with a heat conducting device 7.
• the heat conducting device 7 is arranged between the energy storage devices 2, 3 such that the heat conducting device 7 also touches the second shaped part 10b of the housing 10 in a heat-conducting manner.
• the second mold part 10b surrounds the containing means such that they are biased against each other.
• the control device 4 is designed in one piece with the power regulators or power switches (not shown) and the connection terminals 6, 6a. forms.
• the power switches or power regulators, not shown, are preferably connected in a heat-conducting manner to the second molded part 10b.
• FIG. 2d shows a further embodiment of an energy storage device according to the invention.
• the energy storage devices 2, 3 are arranged one above the other.
• the second molded part 10b of the housing 10 has on the right on the inside of the second molded part 10b electrically against the metallic wall of insulated conductor tracks, which are not shown.
• These interconnects serve to make contact with the energy storage devices 2, 3.
• the interconnects lead via the power switches or power regulators (not shown) and the control device 4 to the connection terminals 6, 6a.
• the control device 4 and the power controller, not shown are combined to form a common module.
• the energy storage device 2, 3 are formed with terminals on a Leisterbahnen facing lateral surface.
• the power switches or power regulators, not shown, are preferably connected in a heat-conducting manner to the second molded part 10b.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=43088322

Family Applications (1)

Country Status (8)

Families Citing this family (5)

Family Cites Families (22)

• 2009
  • 2009-08-17 DE DE102009037725A patent/DE102009037725A1/de not_active Withdrawn
• 2010
  • 2010-07-29 KR KR1020127006215A patent/KR20120083318A/ko not_active Withdrawn
  • 2010-07-29 BR BR112012003778A patent/BR112012003778A2/pt not_active IP Right Cessation
  • 2010-07-29 CN CN2010800362661A patent/CN102484296A/zh active Pending
  • 2010-07-29 JP JP2012525061A patent/JP2013502673A/ja active Pending
  • 2010-07-29 EP EP10741917A patent/EP2467896A1/de not_active Withdrawn
  • 2010-07-29 WO PCT/EP2010/004650 patent/WO2011020547A1/de not_active Ceased
  • 2010-07-29 US US13/390,704 patent/US20120176081A1/en not_active Abandoned

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events