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
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/61—Types of temperature control
  • H01M10/613—Cooling or keeping cold
• • 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
  • H01M10/05—Accumulators with non-aqueous electrolyte
  • H01M10/052—Li-accumulators
• • 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
  • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
  • H01M10/625—Vehicles
• • 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
  • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
• • 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
  • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the 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
• • 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
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
  • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
• • 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
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
• • 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
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
  • H01M50/117—Inorganic material
  • H01M50/119—Metals
• • 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
• • 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
  • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
  • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
  • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
• • 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
  • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
• • 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 a cell holder for holding and receiving an energy storage cell or two energy storage cells. It is further directed to a provided with such a cell holder energy storage cell, a cell holder stack and provided with such a cell holder stack multi-cell energy storage.
• the present invention relates to a cell holder for holding and receiving a lithium ion cell.
• Lithium ion cells for energy storage for hybrid and electric vehicles are available in various designs.
• One design is the so-called soft pack, in which the electrodes are packed with an aluminum composite foil. These cells have a cuboid shape and can be stacked compactly.
• Such energy storage cells are combined to multi-cell energy storage or multi-cell batteries.
• the individual cells are mechanically connected to a cell stack and packaged in a housing (battery housing).
• a particular problem is the cooling of the individual cells.
• such a connection of the cells to a cell stack with packaging in a housing with simultaneous cooling of the cells is still not satisfactorily resolved.
• the present invention provides a solution to this problem. It is the object of the invention to provide a cell holder, the mechanical connection of the Cells and the compact packaging of the same in a housing with good cooling of the cells allows.
• a cell holder for holding and receiving an energy storage cell or two energy storage cells, in particular of lithium ion cells, which in the form of a unilaterally or both sides open housing made of an electrically insulating material having a rear wall, in the a coolant channel is arranged, as well as adestoffzu melt- and adeffenab technologicalkanalabimposing, which are arranged on the housing and communicate with the coolant channel, is formed, wherein the housing has passages for the outlets of the cell and with tongue and grooveffensseinrich- lines is provided for attaching additional cell holders.
• the solution according to the invention thus provides a cell holder which simultaneously performs a plurality of functions.
• it provides mechanical protection for the cell because it surrounds the cell as a housing.
• it ensures cooling of the cell, with the corresponding cooling devices being integrated into the cell holder.
• it allows a mechanical connection of several cells to a mechanically stable cell stack, this connection being made possible by the intended tongue and groove connection devices.
• the packaging is achieved in a housing, since the individual cell holders form a cell holder stack in the form of a closed energy storage or battery housing after fitting and closing the two end sides with corresponding end plates.
• this inner housing formed by the cell stack can be provided with an outer housing.
• a particular advantage of the inventively embodied cell holder is that it ensures good electrical insulation of the individual cells, in conjunction with a cooling of the same.
• the provided for cooling purposes rear wall of the cell holder at the same time provides the desired electrical insulation.
• the side walls of the housing take on corresponding insulating tasks. It is thus achieved in a compact manner simultaneous cooling and electrical insulation, since the cell holder housing can be formed with relatively small wall thicknesses.
• a material for such a cell holder corresponding plastics are suitable, which are known in the art.
• the cell holder according to the invention is in the form of a housing which is open on one or both sides. He can thus hold and record one cell or two cells.
• the back wall provides for the cooling of these two cells, both adjacent to the back wall.
• a coolant channel is arranged, which is flowed through by a coolant, in particular water, in the operating state of the cell holder.
• the coolant channel is preferably designed so that a largely ganzflächi- ge cooling of the adjacent cell is achieved.
• the coolant channel can form a so-called "flow field" and, for example, be meander-shaped in the rear wall.
• Coolant channel provide adestoffzu 10%- anddeffenab110kanalabites, which are arranged on the housing of the cell holder, in particular on the upper side thereof. Leave these coolant supply and coolant discharge duct sections in the juxtaposition or stacking of a plurality of cell holders to adestoffzu Georgiakanal and adeffenab technologicalkanal composed that supply the coolant channels in the respective rear walls of the cell holder with coolant or dissipate coolant thereof.
• Each cell holder is further provided with tongue and groove connection means by means of which further cell holders can be attached in order to form corresponding cell holder stacks.
• These tongue-and-groove connection devices can be designed in various ways if they allow only a simple assembly or joining together of several cell holders. To realize, for example, projecting flanges on one side of a cell holder with grooves on the other side of another cell holder cooperate.
• the housing is preferably of cuboid design and serves to receive a cuboid or two parallelepiped-shaped energy storage cells. Furthermore, the cell holder preferably has a holding foot portion with which attachment to an outer housing is possible.
• the rear wall is expediently formed by a cooling plate, which consists of two parts, which are connected to one another on their outer side, wherein the coolant channel is preferably embossed in a plate part.
• the cell holder preferably has a space for receiving or housing the associated electronics of the energy storage. Furthermore, the housing of the cell holder can have one or more depressions for arranging clamping devices. tions, for example tension bands, have, with these clamping devices a formed cell holder stack is held together.
• Cell holder particularly suitable for lithium ion cells, which are designed as a soft pack.
• Such lithium ion cells have a sealing edge with which an aluminum composite foil is welded. The sealing edge is folded so that it fits snugly against the cell. Overall, this results in a cuboid configuration of lithium-ion cells.
• the inventively designed cell holder has a housing that can accommodate such a cell or two such cells, the arresters of the cell are guided by passages in the housing to the outside. These arresters are connected together after insertion of the cell or cells into the cell holder outside thereof.
• the inventively provided tongue and groove connecting devices are suitably designed so that they can accommodate tolerances in the cell thickness by oversize.
• the cell holders can be stacked in unlimited numbers one above the other, wherein the desired voltage of the multi-cell energy storage can be set via a series connection.
• the present invention further relates to an energy storage cell, in particular a lithium-ion cell, which has a cell holder designed according to the invention.
• the present invention relates to a cell holder stack comprising a multiplicity of according to the invention. It has cell holders, which are placed against one another via the tongue-and-groove connection devices.
• a cell holder stack can be formed from any number of cell holders.
• the cell stack preferably has two end plates provided with coolant supply and discharge ports for the coolant supply and discharge channels formed.
• clamping devices which are preferably elastic.
• tensioning devices may, for example, be tension straps which are or are arranged in the depressions provided on the housing of the cell holder.
• such a cell holder stack preferably has a multiplicity of cell connectors for connecting the arresters to adjacent cells. In this way, the stacked cells can be connected in series.
• the individual cell holders can be set apart for tolerance compensation at a distance from one another in order to be able to accommodate cells of different thicknesses.
• the present invention relates to a multi-cell energy store or a multi-cell battery, which comprises a cell holder stack made of the present invention. having cell holders.
• a multi-cell energy storage device can furthermore be provided with an outer housing which is fastened to the holding foot of the cell holder stack, this holding foot being formed by the plurality of holding foot sections of the individual cell holders.
• the inventively designed cell holder thus makes it possible to build a mechanically stable cell stack, in particular for a hybrid or electric vehicle battery.
• the individual cells are mechanically protected against external influences.
• the corresponding cooling function is integrated in the stack.
• the heat conduction path from the cell to the coolant is very short due to the preferably thinly formed rear walls of the cell holders, which results in very low temperature gradients.
• the fact that the rear walls or cooling plates can be made very thin, resulting in a space advantage over other cooling concepts.
• the cell inserted in a cell holder can be handled very easily by robots so that cell stacks can be built up automatically.
• As a material for the cell holder can be used cheaper plastic. Since there are no metal parts on the cell holder, there are considerable advantages in terms of the required safety tests, since internal short circuits are prevented. Particularly noteworthy is the high-voltage resistance, which must be ensured for electric vehicles.
• Figure 1 is a perspective view of a cell holder
• FIG. 2 shows a three-dimensional representation of a cell holder stack
• Figure 3 is a schematic plan view of a rear wall of a cell holder, wherein schematically shown in the rear wall coolant channel is shown;
• Figure 4 shows a horizontal section through a part of a cell holder in conjunction with another cell holder.
• the cell holder 1 shown schematically in a spatial view in Figure 1 has a housing open on one side, which is approximately rectangular in vertical section and has a rear wall 3 and an upper wall 20, two side walls 2 and a lower wall 21.
• On the upper wall 20 are adeffenzu 1500kanalabites 5 and adeffenab technologicalkanalabites 6.
• These two sections are in communication with a arranged in the rear wall 3 of the cell holder coolant channel (not shown), so that a suitable coolant, such as water, over the channel section 5 can be fed and introduced into the not shown coolant channel. After flowing through the coolant channel, the coolant is discharged via theméstoffabrioskanalabites 6 again.
• the cell holder 1 has tongue and groove connection devices, via which it can be assembled with further corresponding cell holders to form a cell stack.
• The- The tongue-and-groove connection devices are shown schematically at 7 (groove) and at 8 (bar).
• the cell holder has at the lower ends of its side walls 2 holding foot sections 4, with which it can be attached to an outer housing.
• the cell holder 1 shown in Figure 1 is for receiving a lithium ion cell, i. a so-called soft pack, which is accommodated in the free space shown at 30 in contact with the coolant flowing through the rear wall 3.
• the cell holder is made of a suitable plastic material, which ensures a corresponding electrical insulation of the cell.
• FIG. 2 shows a three-dimensional view of a cell holder stack composed of cell holders 1 of FIG.
• This cell holder stack is composed of a plurality of cell holders 1, which are connected to each other via the tongue and groove Mattsseinrich-.
• the cell holder stack is provided in the finished state with two end plates (not shown), thedeffenzu Technology- anddeffenab technological sexualen 5, 6 have.
• the channel sections 5, 6 are also placed in a sealed manner so that continuous channels emerge, which communicate with the coolant channels 13.
• grooves 11 are shown on the upper sides of the channels 5, 6, which serve to receive tension straps with which cell stacks are held together.
• Cell connectors 12 ensure that the individual cells can be connected in series.
• the corresponding arresters of cells that extending through the walls of the cell holders are not shown.
• FIG. 3 shows a view of a rear wall 3 of a cell holder 1 with the front side removed. It can be seen that a meander-shaped coolant channel 13 is arranged within the rear wall 3, which forms a flow field and ensures largely uniform cooling of the rear wall 3.
• the coolant passes from thedeffenzu Technologykanalabites 5 in the cooling passage 13, flows through this and enters thedeffenab technologicalkanalabites 6 and is discharged therefrom.
• two coolant channel connections to the coolant supply channel section and two coolant channel connections to the coolant discharge channel section are illustrated. It is understood that, of course, differently shaped flowfields can be used.
• FIG. 4 shows a horizontal section through part of a cell holder 1 in conjunction with another cell holder. It can be seen that in this case the rear wall 3 of the cell holder consists of two cooling plate sections, of which the inner cooling plate section 14 has the cooling channel 13, which is embossed in this cooling plate section. Both plate sections are welded together.
• FIG. 4 shows the tongue and groove connection devices of the cell holders.
• the illustrated cell holder 1 has a groove 15 in which engages a spring 16 (bar) of the adjacent cell holder.
• the corresponding connection devices are designed such that they allow a certain tolerance compensation for cells of different thicknesses.
• FIG. 4 shows that the adjacent cell holders are arranged at a distance from one another.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Inorganic Chemistry (AREA)
• Secondary Cells (AREA)
• Battery Mounting, Suspending (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=41445518

Family Applications (1)

Country Status (6)

Families Citing this family (18)

Citations (1)

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• 2008
  • 2008-11-13 DE DE102008057210.1A patent/DE102008057210B4/de active Active
• 2009
  • 2009-10-30 WO PCT/EP2009/064339 patent/WO2010054939A1/de active Application Filing
  • 2009-10-30 KR KR1020117013509A patent/KR20110089869A/ko not_active Application Discontinuation
  • 2009-10-30 CN CN2009801453612A patent/CN102217133A/zh active Pending
  • 2009-10-30 EP EP09749061A patent/EP2356716A1/de not_active Withdrawn
  • 2009-10-30 US US13/128,714 patent/US20110244298A1/en not_active Abandoned

Patent Citations (1)

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