EP2695232A2 - Energiespeichervorrichtung mit einer temperiereinrichtung - Google Patents
Energiespeichervorrichtung mit einer temperiereinrichtungInfo
- Publication number
- EP2695232A2 EP2695232A2 EP12711115.1A EP12711115A EP2695232A2 EP 2695232 A2 EP2695232 A2 EP 2695232A2 EP 12711115 A EP12711115 A EP 12711115A EP 2695232 A2 EP2695232 A2 EP 2695232A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- energy storage
- heat
- storage device
- cells
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 51
- 210000000352 storage cell Anatomy 0.000 claims abstract description 32
- 238000012546 transfer Methods 0.000 claims abstract description 20
- 239000004020 conductor Substances 0.000 claims description 18
- 238000005496 tempering Methods 0.000 claims description 10
- 210000004027 cell Anatomy 0.000 description 126
- 238000001816 cooling Methods 0.000 description 29
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- 229910000639 Spring steel Inorganic materials 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
- H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/82—Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0003—Protection against electric or thermal overload; cooling arrangements; means for avoiding the formation of cathode films
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
- H01M6/5038—Heating or cooling of cells or 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
- 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
- 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
- Y02E60/13—Energy storage using capacitors
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the invention relates to an energy storage device having at least one energy storage cell and a tempering device.
- it relates to an energy storage device having a number of energy storage cells and a tempering device.
- Electrochemical energy storage devices also referred to below as electrochemical cells or galvanic cells, are frequently produced in the form of flat, stackable units from which batteries for various applications can be produced by combining a plurality of such cells.
- the cells must often be cooled to dissipate the resulting heat loss.
- a metal cooling plate through which coolant flows can be arranged on the cell block of the battery, often below the cells.
- the heat loss for example, either via separate heat conducting elements, eg. As thermal conductors or sheets, or passed over appropriately thickened cell housing walls of the cells.
- the cell housing of the cells are made metallic and there is an electrical voltage to them.
- the cooling plate of the Cell housings then separated by an electrical insulation, such as a heat conducting film, a shaped body, a potting compound or a coating or foil applied to the cooling plate.
- the coolant circuit can also be used to heat the battery z. B. used during cold start.
- the present invention has for its object to provide an improved energy storage device.
- an energy storage device with at least one energy storage cell, preferably a number of energy storage cells, and with a tempering device, which is designed for tempering the energy storage cell or a composite formed by the energy storage cells, and with at least one clamping element which is configured by clamping forces to a spatial fixation
- this object is achieved in that the clamping element is designed as a functional part of the temperature control and that the clamping element is designed to guide a heat transfer fluid.
- an energy storage device is understood as meaning a device which is also capable of picking up, storing and releasing electrical energy in particular, if appropriate by utilizing electrochemical processes.
- a memory cell is understood to be a self-contained functional unit of the energy storage device, which per se is also capable of picking up, storing and discharging electrical energy in particular, optionally by utilizing electrochemical processes.
- a memory cell can be, for example, but not limited to, a galvanic primary or secondary cell (in the context of this application, primary or secondary cells indiscriminately referred to as battery cells and an energy storage device constructed thereof as a battery), a fuel cell, a high-power capacitor such as Supercap or the like, or an energy storage cell of a different nature.
- a memory cell constructed as a battery cell has, for example, an active region or active part in which electrochemical conversion and storage processes take place, an enclosure for enclosing the active part from the environment and at least two current conductors serving as electrical poles of the memory line.
- the active part has, for example, an electrode arrangement, which is preferably designed as a stack or winding with current collecting foils, active layers and separator layers.
- the active and separator layers may be at least partially provided as separate foil blanks or as coatings of the current collecting foils.
- the current conductors are electrically connected to or formed by the current collecting foils.
- an energy storage cell is to be understood as meaning an electrochemical cell which stores energy in chemical form, delivers it in electrical form to a consumer and, preferably, can also receive it in electrical form from a charging device.
- electrochemical energy stores are galvanic cells or fuel cells.
- a flat electrochemical cell is to be understood as meaning an electrochemical cell whose external shape is characterized by two essentially parallel surfaces whose vertical distance from one another is shorter than the average length of the cell measured parallel to these surfaces. Between these surfaces, often surrounded by a packaging or a cell housing, the electrochemically active components of the cell are arranged.
- Such cells are often surrounded by a multi-layered film packaging, which has a sealed seam at the edges of the cell packaging, which by permanently connecting or closing the film packaging in the area Sealed seam is formed.
- Such cells are often referred to as pouch cells or as coffeebag cells.
- contributing the clamping element to a spatial fixation of the energy storage cells in the energy storage device can be understood as being both a partial contribution to the spatial fixation and a one hundred percent contribution, in particular an exclusive contribution to the spatial fixation.
- the energy storage cells may have a stretchable multilayer film as the outer envelope for receiving resulting gases.
- a storage cell may also be a cell which receives and / or dispense energy not as electrical, but as thermal, potential, kinetic or other type of energy or a cell which receives energy in one type of energy and again in another type of energy, the storage in a different kind of energy can be done.
- clamping is understood to mean holding in a predetermined position, in particular a relative position to one another, by clamping forces.
- a bracing can also, but not only, elastic and frictional forces are exploited.
- the bracing does not exclude a positive position determination; it may, but need not, be limited to preventing disassembly.
- tempering is understood to mean a discharge or supply, in particular a removal of heat. It may be realized as a passive cooling, such as by heat radiation on heat radiating surfaces, as an active cooling, such as by forced convection on heat exchange surfaces or by heat exchange with a particular circulating heat transfer medium such as water, oil or the like in a heat exchanger. In this case, a control or regulation may be provided to maintain a predetermined allowable temperature range. If the clamping device is configured as a functional component of the tempering device and for guiding a heat transfer agent, the tensioning device can also fulfill functions which are related to the temperature control of the storage cells or the cell assembly. These functions may include, but are not limited to, heat transfer to and from the storage cells, heat transfer across heat radiating surfaces, heat transfer to and from a heat transfer medium, heat transfer from and to a heat source or heat sink, and / or the like.
- clamping element is connected directly to a heat carrier medium circuit.
- the clamping element has at least one designed as a hollow rod tie rods.
- An advantage of this embodiment is that the heat transfer medium can be guided by the tie rod.
- a tie rod is understood to be an elongated rod, in particular a total length of the cell stack, which braces the cell block in particular via pressure elements, such as plates or flanges, which press in a stacking direction of the memory cells on the respective outer memory cells.
- a plurality of tie rods are provided, such as four, six, eight or more.
- Such tie rods include, for example, a head at one end and a thread at the other end, or threads at both ends, to allow reliable tightening by screwing or bolting with the aid of nuts.
- the use of tie rods with appropriate shaping of the memory cells also has the advantage that memory cells can be threaded onto the tie rods in a relatively simple manner before clamping, which can also simplify assembly.
- Tie rods can extend, for example, through corresponding recesses of frame elements of compassionflachzellen and absorb heat from them.
- the tie rod designed as a hollow bar can open into a heat exchanger.
- the tensioning element has at least one pair of tie rods designed as a hollow bar, which are closed in a circuit via a bridge.
- the tie rod designed as a hollow rod has two longitudinal bores which are configured as a flow channel and a return channel.
- the clamping element may comprise at least one tension band.
- the tensioning element has at least one pair of tension straps which are closed in a circuit via a bridge.
- the tension band may be resilient at least in sections, in particular wave spring-shaped, wherein preferably a plurality of tension straps are provided, of which at least one tension band covers at least one other tension band.
- a tension band is understood to mean an elongated, in particular flat, band-like component which can also be used to brace an arrangement of memory cells against one another, in particular to brace them in a looping manner.
- a shutter mechanism, a clamping mechanism or the like may be provided to allow mounting under tension.
- An elastic elongation of the tension band may be designed such that when tensioned under tension, the tension band has excess over the cell block and can be striped over it, in which case, when the pretension is released, the tension band lays tightly around the cell block.
- the strap in Sections be formed, for example, wave spring-shaped.
- the wave-spring-shaped sections have planar sections which, under tension, rest flat against heat exchange surfaces of memory cells, heat-conducting elements or the like. As low it has been proven when the clamping element is connected to a heat exchanger.
- the clamping element may be at least partially formed of a thermally conductive material.
- the tensioning element may at least partially comprise a heat-conducting layer.
- a heat-conducting material in the context of the invention is understood then, if it has a thermal conductivity, which allows use as a heat conductor in the technical sense.
- a lower limit may be assumed in the range of about 10 to 20 W m "1 K "1 ; this corresponds to the thermal conductivity of high-alloyed steel and some (preferably fiber-reinforced) plastics provided with highly heat-conductive filling materials. It is preferable to select the thermal conductivity in the range of at least 40 to 50 W m "1 K " 1 .
- thermal conductivity of at least 100 or a few 100 W m "1 K " 1 .
- spring steel silicon or aluminum or copper or silver or in particular carbon nanotubes can be used. Their use or other special materials must be weighed in terms of cost, processability and other technical suitability.
- training with a thermally conductive material according to the invention is to be understood that the clamping device or an element of the clamping device either essentially consist of this material or, for reasons of strength, electrical insulation, temperature resistance or otherwise Properties or uses, only a core, a coating or layer, a jacket or the like may have from such a material. By suitable combination of materials so can desired properties can be set.
- the energy storage device is configured such that the clamping device at least in sections, preferably flat, abuts heat exchange surfaces of the memory cells.
- a heat exchange surface of a storage cell can be understood as an area of the storage cell which can give off heat generated in the interior of the storage cell and, if necessary, can also absorb heat for delivery to an interior of the storage cell. It is advantageous if the component, to which the heat exchange surface belongs, is designed to forward a heat generated in an active region of the cell to the heat exchange surface. The concern ensures a good thermal coupling. If necessary, the thermal coupling can take place by mediation of a heat-conducting element, which can also fulfill tasks of electrical insulation or the like.
- the energy storage device is designed such that the memory cells have a prismatic, in particular flat shape and heat exchange surfaces are provided on at least one of peripheral sides, in particular narrow sides of the memory cells.
- a flat prismatic shape is understood to mean a shape whose extent in a spatial direction, which is also defined as the thickness direction, is significantly lower than in other spatial directions and thus two flat sides with a relatively large areal extent of a narrow edge, in particular at least four Circumferential or narrow sides, are clearly distinguishable.
- Flat, prismatic memory cells are particularly well stackable to a cell composite, especially a compact block, they have a good space utilization and their contact can in many ways, such as on the flat sides, on the narrow sides, over protruding Conductor strips (also called current conductor) or the like can be realized.
- Conductor strips also called current conductor
- the peripheral sides are on the outside, so that they are suitable as heat exchange surfaces.
- the invention is also not limited to flat, but for example, but not only, cubic memory cells, as well as not prismatic, but for example, but not only, cylindrical memory cells applicable.
- the energy storage device is configured such that heat conducting elements are provided, which are formed with a thermally conductive material and at least in sections, preferably flat, abut heat exchange surfaces of the memory cells, wherein the clamping device rests at least on free surfaces of the heat conducting elements.
- a heat-conducting element is understood as meaning a component which is also able to conduct heat to and from memory cells, in particular from and to a space between memory cells within the energy storage device, to and from outside the space between the memory cells
- a heat-conducting element may be, for example, but not limited to, a sheet or a shaped body made of a thermally conductive material, which is arranged between the memory cells.
- a free surface of a heat conducting element a surface which is accessible from outside the cell assembly of the memory cells, z. B. protrudes at the free edge sides and there, for example, but not necessarily, is bent at right angles to abut the edge sides of the memory cells.
- the memory cells have a prismatic, in particular flat shape; then the heat exchange surfaces may preferably be provided on flat sides of the memory cells, and the free surfaces of the heat conducting elements may preferably be provided in the region of peripheral sides, in particular narrow sides of the memory cells.
- the heat-conducting elements can also be formed with electrically conductive materials and additionally as electrical contact elements between adjacent ones Memory cells or between a memory cell and a Polan gleich issued the energy storage device act.
- a heat-conducting element may alternatively have an electrically insulating property if electrical contact is to be prevented at the moment.
- the clamping device holding elements and clamping elements, wherein the holding elements are arranged in alternation with the memory cells to hold the memory cells between them, and wherein the clamping elements clamp the holding elements with the memory cells, wherein the holding elements at least in sections with heat exchange surfaces the memory cells are thermally coupled, and wherein the clamping elements abut at least in sections on heat exchange surfaces of the holding elements. It is advantageous if the holding elements are formed at least between the contact surfaces with the memory cells and the contact surfaces with the clamping elements with a thermally conductive material. In this way, a reliable clamping of the holding elements and the memory cells may be provided to a battery pack.
- Heat exchange surfaces of the holding elements may be outer surfaces, in particular edge surfaces, of the holding elements, for example, but not only if clamping bands are provided as clamping elements.
- Tension elements such as, but not limited to, tie rods can also be passed through passages, such as holes, in the retaining elements;
- heat exchange surfaces of the holding elements may be formed by inner surfaces of the passages.
- Heat exchange surfaces of the memory cells may be provided by flat or edge sides of the memory cells, by current conductors or at passage areas of current conductors by an enclosure of the memory cells.
- the energy storage device is configured such that the clamping device is thermally coupled at least in sections, in particular by surface contact, with portions of a heat exchanger device, wherein the heat exchanger device is preferably connected to a heat carrier Medium circuit is connected and wherein the equippedträgemnittelnikank is preferably controlled or regulated.
- the clamping device can transport heat absorbed by the storage cells to the heat exchanger device and deliver it to a heat transfer medium such as, but not limited to, water or oil.
- the heated heat transfer medium can circulate through the heat transfer medium circuit and release the heat absorbed elsewhere, for example to an air cooler or the like.
- the heat exchanger device lies at least in sections with heat exchange surfaces of the storage cells, wherein the storage cells have a flat prismatic shape and heat exchange surfaces are provided on at least two, preferably opposite narrow sides of the storage cells.
- the storage cells can emit heat to the heat exchanger device by direct contact, and on the other hand deliver heat to the clamping device at points which are not in contact with the heat exchanger device.
- the clamping device braces the cells both with each other and with the heat exchanger device.
- FIG. 1 shows a cross-sectional view of a battery according to a first embodiment
- FIG. 2 is a cross-sectional view of a battery according to a second embodiment
- 3 is a perspective view of the battery according to the second embodiment
- Fig. 4 is a perspective view of the battery according to a third embodiment.
- Fig. 5 is a perspective view of the battery according to a fourth embodiment.
- FIG. 1 is a schematic diagram of a battery 1 having a plurality of cells cells forming a galvanic cell 2 as a first embodiment of the present invention. The cells 2 are shown uncut in FIG.
- the galvanic cells 2 are secondary cells (accumulator cells) with active areas that contain lithium. Such galvanic cells known as lithium-ion cells or the like are basically known in their structure. In the context of this application, the galvanic cells 2 are referred to as cells 2 for the sake of simplicity. In this exemplary embodiment, the cells 2 are designed as so-called frame flat cells with a narrow, essentially parallelepiped-shaped cell housing. The cells 2 are arranged plane-parallel one behind the other and depending on the application parallel or / and series electrically interconnected. Under the cells 2, a cooling plate 3 for tempering the cells 2 may be arranged. The cooling plate 3 has in its interior a in the figure multiply cut cooling channel 3.3, which is traversed by a coolant on.
- a heat-conducting film 4 of electrically insulating material is arranged, which electrically isolates the cooling plate 3 from the cells 2.
- a pressure plate 5 made of an electrically insulating material with good thermal conduction properties, such as a reinforced plastic with thermally conductive dopants, is arranged.
- the pressure plate 5 may be made of a metal such as steel, aluminum or the like, in which case in the region of resting on the upper narrow sides of the cells 2 a electrically insulating coating or an electrically insulating intermediate layer similar to the heat-conducting film 4 is provided.
- a front pole plate 6 At a front end of the cell assembly is a front pole plate 6, and at a rear end of the cell assembly, a rear pole plate 7 is arranged.
- the pole plates 6 and 7 each form a pole of the battery 1 and each have a projecting beyond the pressure plate 5 beyond flag-like extension 6.1, 7.1, which forms a pole contact of the battery 1, respectively.
- the pole plates 6 and 7 each have two fastening lugs 6.2, 7.2, which are angled parallel to the pressure plate 5 of the respective pole plate 6, 7 and rest on the pressure plate 5.
- the pressure plate 5, the cells 2 and the cooling plate 3 are pressed together by two clamping elements 8, which are each guided around the pressure plate 5, the pole plates 6, 7 and the cooling plate 3 around.
- the clamping elements 8 are designed as self-elastic clamping bands 8 with clamping band cavities 8.2, wherein the inherent elasticity is adjusted substantially by spring zones 8.1.
- the spring zones 8.1 are realized by a wave-like shape of the clamping bands 8.
- the spring zones 8.1 are preferably formed where the clamping bands 8 do not extend over edges of the pole plates 6, 7 or the cooling plate 3, in particular on the top and bottom of the battery 1.
- Their waveform has at least in the region of the support of the troughs on the the cooling plate 3 and the pressure plate 5 at least partially at least substantially planar portions to a large contact surface.
- the introduction of the forces in the cell block 1 takes place in the axial direction over the front pole plate 6 and the rear pole plate 7. In the direction perpendicular thereto, the force is introduced below the cooling plate 3 and above the pressure plate 5.
- the pole plates 6, 7 are further provided at least where the clamping bands 8 rest with an electrically insulating coating or an electrically insulating intermediate layer similar to the heat-conducting film 4.
- the Tension bands in the field of pole plates 6, 7 have elastic sections.
- the tension bands 8 with clamping band cavities 8.2 for guiding the heat transfer medium are made of a good heat conductor such.
- an electrically insulating coating of the clamping bands 8 or an insulating intermediate layer is provided.
- the tension bands may be made of a non-conductive material, such as a thermally conductive plastic, preferably with fiberglass, Kevlar or metal reinforcement and a heat-conductive filler. In such a case, additional insulation may not be required.
- FIG. 2 illustrates a further exemplary embodiment of the present invention in a representation corresponding to FIG. 1, in which heat-conducting elements 8.20, 8.21, 8.22 are provided between a clamping band 8 surrounding a cell block with clamping band cavities 8.2 and the cell block.
- a lower heat conducting 8.20 between the clamping band 8 and the cooling plate 3 an upper heat conducting 8.21 between the clamping band 8 and the pressure plate 5 and end-side heat conducting 8.22 between the clamping band 8 and the pole plates 6, 7 may be provided.
- heat-conducting elements 8.20, 8.21, 8.22 rigid metal blocks, such as aluminum blocks, can be used.
- the strap revolves the cell block and ensures a constant contact force in the axial direction and in the direction of the vertical axis.
- the tension band 8 is closed by means of a crimp closure 8.3; This ensures a secure clamping of the battery 1.
- the heat-conducting elements 8.20, 8.21, 8.22 have elastic properties and z. B.
- the clamping band 8 is straight, that is, formed without elastic corrugation, and is the entire surface on the heat-conducting elements 8.20, 8.21, 8.22.
- Fig. 3 shows a schematic representation of another embodiment.
- the optional cooling plate 3 has in its rrnneren a cooling channel 3.3, which is traversed by a coolant, and two coolant connections 3.1 for supplying and discharging the coolant.
- the cooling plate 3 can be connected to a coolant circuit, not shown, via which absorbed by the coolant waste heat from the battery 1 can be discharged.
- the clamping device is realized by two metallic clamping bands 8 with clamping band cavities 8.2, which can be provided with an electrically insulating, but heat-conducting layer.
- the tensioning straps 8 have a tensioning range 8.4, which in the illustrated embodiment is designed as a wave-like stretching region.
- the tension bands 8 run in depressions 5.1 via the pressure plate 5, in depressions 7.3 via the rear pole plate 7, in depressions 3.2 via the cooling plate 3 and in wells not shown in detail via the front pole plate 6.
- Fig. 4 shows a schematic representation of another embodiment of the present invention.
- a plurality of cells 2 are arranged between in each case two holding frames 16, 16 or 16, 17.
- the arrangement of cells 2 and holding frames 16, 17 is arranged between two end plates 18, 19.
- tie rods 20 with locknuts 21 are for bracing the composite of cells, support frame 16, 17 and end plates 18, 19 are provided.
- the end plates 18, 19 also serve as electrical poles of the battery 1.
- connection devices 23, 24 are provided.
- An attached to struts 25 controller 26 is provided for monitoring state parameters of the battery 1 and the individual cells 2, for charge equalization and the like.
- the tie rods 20 and / or counter nuts 21 designed to guide a heat transfer medium are electrically insulated against at least one of the end plates 18, 19.
- the trained to guide a heat transfer medium tie rod 20 in the interior of the battery 1 generated heat, which can be derived by flow of the heat transfer medium. Furthermore, they may be in heat conductive contact with the end plates 18, 19. The heat can also be dissipated via the end plates 18, 19 by means of a suitable cooling device (not shown in more detail).
- a cooling device As a cooling device comes z. As an air flow around profile made of aluminum or another good heat conductor into consideration, which is bolted by the tie rods on the head side and / or the nut side with the end plates 18, 19. Alternatively, at one of the end plates 18, 19, a heat exchanger may be mounted frontally, to which the tie rods 20 can give off heat. There are also other types of heat dissipation through the tie rods 20 conceivable.
- the cells 2 are formed in this embodiment as so-called Coffeebag- or Pouch cells
- Such cells 2 have an electrode stack and an enclosure of a film material (wrapping film), which is sealed at an edge portion to a to form so-called sealed seam.
- the Abieiter occur on two narrow sides of the cells 2 through the sealed seam.
- the cells 2 are held by the holding frames 16, 17 on the Abieitern itself or in contact areas, where in the region of the sealed seam where the Abieiter pass through the sealed seam, and at least there by the Abieiter heat to the frame members 16, 17 from ,
- the trained to guide a heat transfer agent tie rods extend through the frame members 16, 17 therethrough and take heat from the standing in contact with the Abieitern Garrahrrien 16, 17.
- separate contact elements can be provided, which are gripped by the holding frames 16, 17 and exert the contact pressure on the edge sections of the cells 2 and absorb heat from them.
- heat from the flat sides of the cells 2 via politicians and / or thermally conductive elastic elements which are arranged between the cells 2, transferred to the support frame 16, 17 and are derived from these again via the tie rods 20 on.
- more than four tie rods, z. B. six or eight tie rods be provided to clamp the cell block and dissipate heat.
- the tensioning can take place, for example, via heat-conducting tension bands.
- such tension bands can be guided, for example, but not only, over chamfers 16.1, 17.1, 18.1, 19.1 of the holding frames 16, 17 and the end plates 18, 19.
- the tie rods 20 may be connected via a Switzerlandankermaschine 20.1, whereby a cycle of the heat transfer medium can be effected.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
- Control Of Temperature (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110016048 DE102011016048A1 (de) | 2011-04-04 | 2011-04-04 | Energiespeichervorrichtung mit einer Temperiereinrichtung |
PCT/EP2012/001368 WO2012136323A2 (de) | 2011-04-04 | 2012-03-28 | Energiespeichervorrichtung mit einer temperiereinrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2695232A2 true EP2695232A2 (de) | 2014-02-12 |
Family
ID=45908013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12711115.1A Withdrawn EP2695232A2 (de) | 2011-04-04 | 2012-03-28 | Energiespeichervorrichtung mit einer temperiereinrichtung |
Country Status (7)
Country | Link |
---|---|
US (1) | US20140106199A1 (de) |
EP (1) | EP2695232A2 (de) |
JP (1) | JP2014510381A (de) |
KR (1) | KR20140027966A (de) |
CN (1) | CN103620863A (de) |
DE (1) | DE102011016048A1 (de) |
WO (1) | WO2012136323A2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108475832A (zh) * | 2016-10-31 | 2018-08-31 | 株式会社Lg化学 | 在电池的边缘表面上使用直接冷却法的电池组 |
RU215059U1 (ru) * | 2022-10-07 | 2022-11-28 | ОБЩЕСТВО С ОГРАНИЧЕННОЙ ОТВЕТСТВЕННОСТЬЮ "СОВРЕМЕННЫЕ ЭНЕРГЕТИЧЕСКИЕ ТЕХНОЛОГИИ РАЗУМА" (ООО "СЭТРа") | Термостатированная батарея |
Families Citing this family (12)
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DE102013212899A1 (de) * | 2013-07-02 | 2015-01-08 | Bayerische Motoren Werke Aktiengesellschaft | Verspannungssystem für ein Brennstoffzellensystem |
DE102015202149B3 (de) | 2015-02-06 | 2016-08-11 | Siemens Aktiengesellschaft | Elektrischer Energiespeicher mit effizienter Wärmeabfuhr |
US10062882B2 (en) * | 2015-10-16 | 2018-08-28 | Bosch Battery Systems Llc | Force generating assembly for a battery pack |
DE102015221265A1 (de) * | 2015-10-30 | 2017-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Fluiddurchströmbarer Kühlkörper für elektrische Energiespeicher |
DE102016220877A1 (de) * | 2016-10-24 | 2018-04-26 | Volkswagen Aktiengesellschaft | Wärmeleitmatte, Batteriebaugruppe mit einer derartigen Wärmeleitmatte sowie Fahrzeug |
DE102017219556A1 (de) * | 2017-11-03 | 2019-05-09 | Gs Yuasa International Ltd. | Batteriemodul, Spannelement und Verwendung eines solchen Batteriemoduls |
JP7056142B2 (ja) * | 2017-12-25 | 2022-04-19 | トヨタ自動車株式会社 | 電池モジュール |
DE102018212550A1 (de) * | 2018-07-27 | 2020-01-30 | Audi Ag | Batterieanordnung und Kraftfahrzeug |
DE102018213153A1 (de) * | 2018-08-07 | 2020-02-13 | Audi Ag | Befeuchter, Brennstoffzellenvorrichtung mit Befeuchter sowie Kraftfahrzeug |
KR20210149054A (ko) * | 2019-03-14 | 2021-12-08 | 제너렉 파워 시스템즈, 아이앤씨. | 배터리 모듈 열 관리 |
CN110444802A (zh) * | 2019-09-18 | 2019-11-12 | 博众精工科技股份有限公司 | 一种软包电芯封装设备 |
US20230119268A1 (en) * | 2020-03-25 | 2023-04-20 | Noria Water Technologies, Inc. | Method and Apparatus for Real-Teim Direct Surface Fouling and Scale Monitoring of Heat Transfer Surfaces |
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JP2008277085A (ja) * | 2007-04-27 | 2008-11-13 | Sanyo Electric Co Ltd | パック電池 |
DE102008034869A1 (de) * | 2008-07-26 | 2009-06-18 | Daimler Ag | Batterie mit mehreren einen Zellenverbund bildenden Batteriezellen |
DE102008059953B4 (de) * | 2008-12-02 | 2015-02-12 | Daimler Ag | Batterie und deren Verwendung |
DE102008059966B4 (de) * | 2008-12-02 | 2011-06-22 | Daimler AG, 70327 | Batterie mit mehreren in einem Zellenverbund angeordneten Batteriezellen und Verwendung einer Batterie |
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2011
- 2011-04-04 DE DE201110016048 patent/DE102011016048A1/de not_active Withdrawn
-
2012
- 2012-03-28 EP EP12711115.1A patent/EP2695232A2/de not_active Withdrawn
- 2012-03-28 CN CN201280027396.8A patent/CN103620863A/zh active Pending
- 2012-03-28 US US14/009,948 patent/US20140106199A1/en not_active Abandoned
- 2012-03-28 KR KR20137028537A patent/KR20140027966A/ko not_active Application Discontinuation
- 2012-03-28 WO PCT/EP2012/001368 patent/WO2012136323A2/de active Application Filing
- 2012-03-28 JP JP2014503014A patent/JP2014510381A/ja active Pending
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108475832A (zh) * | 2016-10-31 | 2018-08-31 | 株式会社Lg化学 | 在电池的边缘表面上使用直接冷却法的电池组 |
RU215059U1 (ru) * | 2022-10-07 | 2022-11-28 | ОБЩЕСТВО С ОГРАНИЧЕННОЙ ОТВЕТСТВЕННОСТЬЮ "СОВРЕМЕННЫЕ ЭНЕРГЕТИЧЕСКИЕ ТЕХНОЛОГИИ РАЗУМА" (ООО "СЭТРа") | Термостатированная батарея |
Also Published As
Publication number | Publication date |
---|---|
KR20140027966A (ko) | 2014-03-07 |
WO2012136323A2 (de) | 2012-10-11 |
DE102011016048A1 (de) | 2012-10-04 |
WO2012136323A3 (de) | 2012-12-13 |
US20140106199A1 (en) | 2014-04-17 |
CN103620863A (zh) | 2014-03-05 |
JP2014510381A (ja) | 2014-04-24 |
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