WO2013002090A1 - Dispositif d'alimentation en énergie, véhicule comprenant ce dispositif, et procédé de fabrication d'un dispositif d'alimentation en énergie - Google Patents

Dispositif d'alimentation en énergie, véhicule comprenant ce dispositif, et procédé de fabrication d'un dispositif d'alimentation en énergie Download PDF

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Publication number
WO2013002090A1
WO2013002090A1 PCT/JP2012/065725 JP2012065725W WO2013002090A1 WO 2013002090 A1 WO2013002090 A1 WO 2013002090A1 JP 2012065725 W JP2012065725 W JP 2012065725W WO 2013002090 A1 WO2013002090 A1 WO 2013002090A1
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WO
WIPO (PCT)
Prior art keywords
power supply
battery
supply device
battery stack
cooling plate
Prior art date
Application number
PCT/JP2012/065725
Other languages
English (en)
Japanese (ja)
Inventor
高志 瀬戸
土屋　正樹
康広 浅井
橋本　裕之
貴英 籠谷
Original Assignee
三洋電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Publication of WO2013002090A1 publication Critical patent/WO2013002090A1/fr

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • 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
    • H01M10/653—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
    • 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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/227—Organic 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention mainly includes a power source device for a motor for driving a vehicle such as a hybrid vehicle or an electric vehicle, or a large current power source device used for power storage for home use or factory use, and such a power source device.
  • the present invention relates to a vehicle and a method for manufacturing such a power supply device.
  • a cooling pipe 260 for circulating a refrigerant is arranged on the lower surface of the battery stack 205 in which the battery cells 201 are stacked, and is connected to the cooling mechanism 269.
  • the cooling pipe 260 is extended and piped in a direction crossing the stacking direction in which the battery cells 201 are stacked.
  • the cooling pipe 260 is extended and connected in parallel with the stacking direction in which the battery cells 201 are stacked.
  • the cooling plate 261 is disposed on the lower surface of the battery stack 205 and the cooling pipe 260 is provided on the cooling plate 261, so that the cooling is performed by removing heat from the battery stack 205 via the cooling plate 261. I am letting.
  • the surface of the battery cell which is a metal outer can, is completely covered with resin, etc., and the air layer is removed from the surface of the battery cell, so that moisture contained in the air is condensed. It is possible to avoid it.
  • the periphery of the battery cell is completely covered with the resin, the thermal coupling with the cooling plate is hindered, resulting in a problem that the cooling capacity is lowered.
  • one surface (for example, the bottom surface) of the battery stack is opened and the cooling plate is disposed here, a gap is generated between the cooling plate and the battery stack.
  • JP 2009-134901 A JP 2009-134936 A JP 2010-15788 A Japanese Utility Model Publication No. 34-16929 JP 2005-149837 A Japanese Patent Laid-Open No. 2002-100407
  • the present invention has been made to solve such conventional problems.
  • SUMMARY OF THE INVENTION The main object of the present invention is to provide a power supply device capable of maintaining the thermal coupling between the battery cell and the cooling plate while avoiding the situation of condensation on the surface of the battery cell, a vehicle equipped with the power supply device, and a method for manufacturing the power supply device. It is in.
  • a battery laminate 5 formed by laminating a plurality of rectangular battery cells 1 and the outside of the battery laminate 5 are provided.
  • a covering case 16 that covers a part of one surface of the battery stack 5 and a heat-bonded state disposed on one surface of the battery stack 5 and flowing a refrigerant therein to exchange heat with the battery stack 5
  • the waterproof sheet 19 can be fixed with the filler layer 18 by interposing a filler layer 18 formed by injecting filler into the gap.
  • a waterproof sheet can be applied instead of the filling layer to exhibit waterproofness, and the waterproof sheet is also attached to the battery laminate by curing of the filler forming the filling layer. Since it can be fixed, there is an advantage that reliability can be improved.
  • the covering case 16 has a pair of projecting portions 16b formed so as to project from both sides with respect to one surface of the battery laminate 5;
  • the waterproof sheet 19 can be gripped by the pair of overhang portions 16b.
  • the waterproof sheet 19 can be further fixed to the projecting portion 16b. Thereby, while being able to fix the edge of a waterproof sheet to a covering case, the flooding from this part can be prevented.
  • the heat conductive sheet 12 which has insulation and heat conductivity interposed between the said cooling plate and the said battery laminated body 5, and the said heat
  • the conductive sheet 12 can further have elasticity. Thereby, it is possible to maintain high thermal conductivity while achieving insulation between the battery stack and the cooling plate with an insulating thermal conductive sheet. Further, the elasticity of the heat conductive sheet can reduce the generation of gaps at the contact interface between the battery stack and the cooling plate, and can also avoid the situation where heat conduction is hindered by the formation of the air layer.
  • the covering case 16 forms an opening that opens a region sandwiched between the pair of projecting portions 16b, and the cooling plate 61 includes the opening.
  • the portion can be formed in a size that can be closed.
  • the opening part is provided in one surface of a battery laminated body, and the circumference
  • one surface of the battery stack 5 can be the bottom surface of the battery stack 5.
  • the covering case 16 can be made of resin, and the filler can be made of the same resin as the covering case 16. Thereby, when a filler hardens
  • the filler can be a urethane resin.
  • seat 19 can be removed so that the said heat conductive sheet 12 and a part of said battery laminated body 5 may be made to contact directly.
  • a vehicle equipped with the power supply device described above can be provided.
  • a battery laminate 5 formed by laminating a plurality of rectangular battery cells 1 and the outside of the battery laminate 5 are connected to one surface of the battery laminate 5.
  • a method of manufacturing a power supply device comprising: an insulating and thermally conductive, and thermally conductive sheet 12 interposed between the cooling plate and the battery stack 5.
  • the outside of the battery laminate 5 is covered with a waterproof sheet 19 on one surface of the battery laminate 5, and the other surface of the battery laminate 5 is covered with a covering case 16.
  • the waterproof sheet is covered with the covering case 16 on the finished surface.
  • a jig JG is disposed so as to press the waterproof sheet 19 against the battery stack 5 in the opening where the waterproof sheet 19 is exposed from the covering case 16 while covering the periphery of the cover 9.
  • the step of disposing the heat conductive sheet 12 and the cooling plate 61 may be included.
  • a waterproof sheet can be applied instead of the filling layer to provide waterproofness, and further, the waterproof sheet can be fixed to the battery stack by curing the filling layer.
  • the step of removing a portion of the waterproof sheet 19 that is not fixed by the filling layer 18 before the heat conductive sheet 12 is disposed.
  • FIG. 1 It is a disassembled perspective view of a power supply device provided with the power supply device which concerns on Example 1 of this invention. It is a perspective view which shows the assembled battery of FIG. It is a disassembled perspective view which shows the state which removed the cooling plate from the battery laminated body of FIG. It is the perspective view which looked at the battery laminated body of FIG. 2 from diagonally downward. It is a disassembled perspective view which shows the assembled battery of FIG. It is a disassembled perspective view of the battery laminated body of FIG. It is sectional drawing which shows the power supply device which concerns on a modification. It is a schematic cross section which shows the example which arrange
  • FIG. 6 is a cross-sectional view illustrating a power supply device according to a second embodiment. It is sectional drawing which shows the assembly state of the power supply device shown in FIG. It is a disassembled sectional view which shows the state which arrange
  • each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and the plurality of elements are shared by one member, and conversely, the function of one member is constituted by a plurality of members. It can also be realized by sharing.
  • the contents described in some examples and embodiments may be used in other examples and embodiments.
  • FIG. 1 is an exploded perspective view of the power supply device 100
  • FIG. 2 is a perspective view showing the battery stack 5 of FIG. 1
  • FIG. 3 is an exploded perspective view with the cooling plate 61 removed from the battery stack 5 of FIG. 4 is a perspective view of the battery stack 5 of FIG. 2 as viewed obliquely from below
  • FIG. 5 is an exploded perspective view of the battery stack 5 of FIG. 2
  • FIG. 6 is an exploded perspective view of the battery stack 5 of FIG. 7 is a cross-sectional view showing a power supply device according to a modification
  • FIG. 1 is an exploded perspective view of the power supply device 100
  • FIG. 2 is a perspective view showing the battery stack 5 of FIG. 1
  • FIG. 5 is an exploded perspective view of the battery stack 5 of FIG. 2
  • This power supply device 100 is mainly mounted on an electric vehicle such as a hybrid vehicle or an electric vehicle, and is used as a power source for supplying electric power to a traveling motor of the vehicle and causing the vehicle to travel.
  • the power supply device of the present invention can be used for an electric vehicle other than a hybrid vehicle or an electric vehicle, and can also be used for an application requiring a high output other than an electric vehicle. (Power supply device 100)
  • the external appearance of the power supply device 100 is a box shape whose upper surface is rectangular.
  • a box-shaped outer case 70 is divided into two, and a plurality of assembled batteries 10 are accommodated therein.
  • the exterior case 70 includes a lower case 71, an upper case 72, and end plates 73 connected to both ends of the lower case 71 and the upper case 72.
  • the upper case 72 and the lower case 71 have a flange portion 74 protruding outward, and the flange portion 74 is fixed with a bolt and a nut.
  • the outer case 70 has a flange 74 disposed on the side surface of the outer case 70. Further, in the example shown in FIG.
  • the assembled battery 10 is composed of four battery stacks 5 in the example shown in FIG. That is, two battery stacks 5 are connected in the stacking direction of the rectangular battery cells 1 to form one battery stack continuous body 10B, and two battery stack continuous bodies 10B in such a connected state are arranged in parallel.
  • the assembled battery 10 is configured.
  • FIG. 2 shows a perspective view of each battery stack 5 constituting the assembled battery 10.
  • the battery stack 5 is fixed on a cooling plate 61 for cooling it.
  • the battery stack 5 has a connection structure for fixing on the cooling plate 61 (details will be described later).
  • each battery stack 5 is a separator that insulates the prismatic battery cells 1 by interposing them on a surface where a plurality of prismatic battery cells 1 and a plurality of prismatic battery cells 1 are stacked.
  • a covering case 16 that houses a battery stack 5 in which a plurality of prismatic battery cells 1 and separators 2 are alternately stacked, a pair of end plates 3 that are disposed on the end surface of the battery stack 5 in the stacking direction, and a battery
  • a plurality of metal fastening members 4 that fasten the end plates 3 disposed on both end faces of the laminate 5 are provided.
  • the battery stack 5 is formed by stacking a plurality of rectangular battery cells 1 with an insulating separator 2 interposed therebetween. Further, as shown in FIG. 5, a pair of end plates 3 are arranged on both end faces of the battery stack 5, and the pair of end plates 3 are connected by a fastening member 4. In this way, a battery stack 5 in which a plurality of prismatic battery cells 1 and separators 2 are alternately stacked by interposing a separator 2 that insulates adjacent prismatic battery cells 1 on a stacking surface of the prismatic battery cells 1. Yes. (Square battery cell 1)
  • the rectangular battery cell 1 has an outer can constituting the outer shape of a rectangular shape whose thickness is smaller than the width.
  • Positive and negative electrode terminals are provided on the sealing plate for closing the outer can, and a safety valve is provided between the electrode terminals.
  • the safety valve is configured to open when the internal pressure of the outer can rises to a predetermined value or more, and to release the internal gas. The increase in the internal pressure of the outer can can be stopped by opening the safety valve.
  • the unit cell constituting the rectangular battery cell 1 is a rechargeable secondary battery such as a lithium ion battery, a nickel-hydrogen battery, or a nickel-cadmium battery.
  • the battery cell used in the present invention is not limited to a rectangular battery cell, but may be a cylindrical battery cell or a rectangular battery cell in which an exterior body is covered with a laminate material or other shapes.
  • the respective rectangular battery cells 1 that are stacked to form the battery stack 5 are connected in series by connecting adjacent positive and negative electrode terminals with a bus bar 6.
  • the assembled battery 10 in which the adjacent rectangular battery cells 1 are connected in series can increase the output voltage and increase the output.
  • an assembled battery can connect adjacent square battery cells in parallel, or can combine a series connection and a parallel connection into multiple parallels or multiple parallels.
  • the rectangular battery cell 1 is manufactured with a metal outer can.
  • an insulating separator 2 is sandwiched between the adjacent rectangular battery cells 1 in order to prevent short-circuiting of the outer can of the rectangular battery cell 1.
  • the outer can of the rectangular battery cell can also be made of an insulating material such as plastic. In this case, since it is not necessary for the rectangular battery cell to insulate and laminate the outer can, the separator can be made of metal or the separator can be made unnecessary. (Separator 2)
  • Separator 2 is a spacer for insulating and stacking adjacent rectangular battery cells 1 electrically and thermally.
  • the separator 2 is made of an insulating material such as plastic, and is disposed between the adjacent rectangular battery cells 1 to insulate the adjacent rectangular battery cells 1.
  • the side surface of the separator 2 can be simplified and downsized. That is, in the example shown in FIGS. 5 and 6, since the side surface of the battery stack 5 can be protected by making the side surface of the covering case 16 insulative, the separator 2 only has to insulate only the surface where the rectangular battery cells 1 face each other. It is not necessary to cover the side surface of the rectangular battery cell with a separator. For this reason, it is possible to reduce the size by eliminating the part protruding from the side surface of the separator so as to cover the side surface of the battery stack 5. Or what hold
  • this separator can be configured to be substantially flush with the surface of the prismatic battery cell on the side surface of the battery stack, the lateral width of the battery stack can be reduced.
  • the protruding portion provided on the side surface of the separator is provided for positioning the battery cells to be stacked.
  • the entire covering case may be made of metal.
  • the side surface of the covering case is also made of metal, it is preferable to cover the side surface of the rectangular battery cell with a separator in order to insulate the rectangular battery cells on the side surface of the battery stack.
  • the battery laminated body does not necessarily need to interpose a separator between square battery cells.
  • the prismatic battery cell outer cans are molded with an insulating material, or the outer periphery of the prismatic battery cell outer cans are covered with a heat-shrinkable tube, insulating sheet, insulating paint, etc. By insulating, a separator can be made unnecessary.
  • a method of cooling the battery stack through a cooling plate cooled by using a refrigerant or the like is employed, instead of an air cooling method in which cooling air is forced between the rectangular battery cells to cool the rectangular battery cells.
  • an air cooling system that cools the prismatic battery cells by forcibly blowing cooling air between the prismatic battery cells.
  • a pair of end plates 3 are arranged on both end faces of the battery stack 5 in which the rectangular battery cells 1 and the separators 2 are alternately stacked. With the pair of end plates 3, the battery stack 5 is fastened so as to be sandwiched from both sides.
  • the end plate 3 is made of a material that exhibits sufficient strength, for example, metal. Further, the end plate 3 may be provided with a fixing structure for fixing to the lower case 71 shown in FIG.
  • both end surfaces of the covering case 16 are opened, but the present invention is not limited to this configuration.
  • the end surface of one covering case can be closed in advance.
  • the covering end case can be closed around the side surface by closing the opening end face with one end plate. (Fastening member 4)
  • the fastening members 4 are arranged on both side surfaces of the battery stack 5 in which the end plates 3 are stacked at both ends, and are fixed to the pair of end plates 3 so that the battery stack 5 is fixed.
  • the fastening member 4 includes a main body 41 that covers the side surface of the battery stack 5, and a bent piece 42 that is bent at both ends of the main body 41 and fixed to the end plate 3. And an upper surface holding portion 43 that is bent upward to hold the upper surface of the battery stack 5 and a fastening connecting portion 44 that protrudes downward.
  • a fastening member 4 is made of a material having sufficient strength, for example, a metal bind bar.
  • the fastening member is provided in each battery laminated body 5, respectively, In this case, the end plates located in each end surface are fixed to each battery laminated body 5 with a fastening member. In addition, in the state which arranged the two battery laminated bodies 5 in the lamination direction, both side surfaces can also be integrally connected by the fastening member 4.
  • FIG. In this configuration, the fastening member 4 is also used as a member for connecting the battery stacks 5 to each other.
  • the end plates 3 positioned on the end surfaces are fixed to each other by the fastening members 4, and the fastening members are not fixed to the end plates 3 facing each other between the two battery stacks 5.
  • the end plate 3 which opposes between two battery laminated bodies 5 can also be shared as one component.
  • the fixing of the end plate and the fastening member is not limited to the structure of fixing with the bolt described in the embodiment. (Coating case 16)
  • the battery stack 5 is covered with a covering case 16.
  • the battery stack 5 includes a covering case 16 having a U-shaped cross section and opening the lower surface and both end surfaces, and an end plate 3 covering both ends of the covering case 16.
  • a waterproof sheet 19 that covers the bottom surface of the battery stack 5, a cooling plate 61 that closes the opening of the covering case 16, and a heat conductive sheet 12 that is disposed between the cooling plate 61 and the waterproof sheet 19. Is done.
  • the end plate 3 that holds the battery stack 5 from both end faces is also used as the end face of the covering case 16.
  • a packing 3 b is provided inside the end plate 3.
  • the packing 3b is a sheet-like elastic member.
  • a cover portion 24 is provided on the upper surface of the covering case 16.
  • the cover portion 24 is provided with slits for communicating with the electrode terminals of the respective battery cells, and electrical connection between the bus bars 6 for connecting adjacent battery cells through the slits and the bus bar 6 and the circuit board is obtained. It is done.
  • the cover portion 24 is provided with a filler inlet for injecting a filler. After the covering case 16 is closed with the cover portion 24, the potting material can be filled. In this case, there is an advantage that a gap between the cover part 24 and the covering case 16 or a gap between the cover part 24 and the battery stack 5 can be filled. In this way, it is possible to avoid the situation where the prismatic battery cell 1 is covered and the surface is condensed.
  • a gas duct 26 communicating with the safety valve of the rectangular battery cell 1 is provided on the inner surface of the cover portion 24.
  • a circuit board on which a control circuit for controlling the power supply device 100 is mounted is disposed on the upper surface of the cover portion 24. Further, the circuit board may be integrally provided in the cover portion.
  • cover part 24 is provided integrally with the covering case 16, these can also be comprised by another member.
  • FIG. 7 Such an example is shown in FIG. 7 as a modified example.
  • the covering case 16B shown in this figure closes the upper surface with the cover portion 24B as a separate member.
  • the covering case 16 can also hermetically seal the fitting portion by using a case member constituting each surface as a fitting structure.
  • a fitting structure a packing, an O-ring, a gasket or the like can be used, and the covering case 16 can be sealed.
  • the covering case 16 is provided with a protruding portion 16b protruding from the side edge to the bottom surface at the corner of the battery stack 5 at the bottom.
  • the overhanging portion 16b holds the bottom surface of the battery stack 5 at the corners on both sides.
  • the covering case 16 covers the upper surface of the battery stack 5, the top surface of the battery cells constituting the battery stack 5 is the same by sandwiching the battery stack 5 from above and below with the covering case 16. They can be arranged on a plane. In other words, by aligning the bottom surface of the battery stack 5 to the same surface, the connection surface with the cooling plate 61 can be made flat, and the stability and reliability of thermal coupling can be improved.
  • the opening on the bottom surface of the covering case 16 can be used for fixing when the waterproof sheet 19 covers the opening. (Aperture)
  • the covering case 16 is an opening having a bottom opening.
  • the opening is a region sandwiched between the pair of overhang portions 16b.
  • the opening has a size that can be closed by the cooling plate 61.
  • the outer shape of the heat conductive sheet 12 is formed to be substantially the same as or slightly smaller than the opening so that the heat conductive sheet 12 can be inserted into the opening. (Thermal conductive sheet 12)
  • a heat transfer member such as the heat conductive sheet 12 is interposed between the battery stack 5 and the cooling plate 61.
  • the heat conductive sheet 12 is made of a material that is insulating and excellent in heat conduction, and more preferably has a certain degree of elasticity. Examples of such a material include acrylic, urethane, epoxy, and silicone resins. By doing in this way, between the battery laminated body 5 and the cooling plate 61 is electrically insulated.
  • the outer can of the square battery cell 1 is made of metal and the cooling plate 61 is made of metal, it is necessary to insulate the battery so as not to conduct at the bottom surface of the square battery cell 1.
  • the surface of the outer can is covered and insulated with a heat-shrinkable tube or the like, and in order to further improve the insulation, the insulating heat conductive sheet 12 is interposed to enhance safety and reliability. Moreover, it can replace with a heat conductive sheet and can also use a heat conductive paste. Furthermore, an additional insulating film can be interposed in order to reliably maintain the insulating property.
  • the cooling pipe can be made of an insulating material. When sufficient insulation is achieved in this way, the heat conductive sheet or the like may be omitted.
  • the surface of the heat conductive sheet 12 is elastically deformed to eliminate a gap at the contact surface between the battery stack 5 and the cooling plate 61, and the thermal coupling state can be improved satisfactorily.
  • the battery stack 5 is covered with a covering case 16 to have a waterproof structure. Thereby, intrusion of dust and moisture from the outside can be prevented, and unintended conduction and corrosion can be avoided. On the other hand, it is possible to protect not only moisture entering from the outside but also water droplets generated by condensation inside. In particular, if a cooling system that takes heat away from the prismatic battery cells by heat exchange using a refrigerant is used as a cooling system for the prismatic battery cells, the cooling can be performed more efficiently, but the temperature drops below the dew point due to high cooling performance. Thus, moisture in the air present around the battery stack may be cooled to cause condensation on the surface of the prismatic battery cell.
  • FIG. 8 shows a cross-sectional view of the battery stack 5 having such a waterproof structure.
  • a filling layer 18 is disposed between the battery stack 5 and the covering case 16. That is, by filling the gap between the battery stack 5 and the covering case 16 with the filler, and providing the filling layer 18, moisture in the air existing in the gap is condensed and the battery stack 5 is adversely affected. The situation to give is avoided.
  • the battery stack 5 is covered with a filler as the filler layer 18.
  • the filler is injected between the battery stack 5 and the covering case 16 by surrounding the battery stack 5 with the covering case 16. Yes.
  • the space between the battery stack 5 and the covering case 16 is eliminated, and a situation in which the surface of the battery stack 5 is dewed and adversely affected can be avoided.
  • the filling layer 18 is filled with a filler. Thereby, a waterproof structure in which the periphery of the battery stack 5 is waterproof is obtained. (Filler)
  • a potting material that fills the gap can be used as the filler.
  • urethane resin can be preferably used.
  • the inside of the covering case 16 it is preferable to make the inside of the covering case 16 have a reduced pressure or a negative pressure when filling the filler so as to spread the filler in the gap and avoid the generation of bubbles.
  • the filler can be injected under pressure. After filling the filler, it is dried until the filler is completely cured.
  • the adhesiveness after hardening of a filler can also be improved by making a coating case into resin and making a filler into resin of the same system as a coating case. (Waterproof sheet 19)
  • the covering case 16 since the covering case 16 has an open bottom, the battery stack 5 cannot be covered with this portion. Therefore, a waterproof sheet 19 that covers the opening surface is provided. As shown in the perspective view of FIG. 4, the waterproof sheet 19 is disposed so as to cover the bottom surface of the battery stack 5, and is fixed to the battery stack 5 in this state. For fixing the waterproof sheet 19, for example, an adhesive is applied to the interface between the waterproof sheet 19 and the battery stack 5. Further, it can be fixed by the overhanging portion 16 b of the covering case 16. In particular, when the filling layer 18 is filled and fixed in the gap between the battery stack 5 and the covering case 16, the waterproof sheet 19 can also be fixed.
  • waterproof sheet 19 and covering case 16 A waterproof structure capable of blocking water from this portion can be realized.
  • the waterproof sheet 19 a resin-made sheet having excellent waterproof properties can be used.
  • PET, PEV, PP, or the like can be used.
  • the battery laminated body 5 is radiated by the cooling plate 61 through the waterproof sheet, it is preferable to use a member having excellent heat conduction.
  • the battery cell is also excellent in heat resistance so that the battery cell is not easily damaged even if it generates heat.
  • an acrylic material or the like can be suitably used. (Example 2)
  • a part of the waterproof sheet 19 can be removed so that the heat conductive sheet 12 is brought into direct contact with the battery stack 5.
  • FIG. 1 The battery laminate 5 shown in this figure has the waterproof sheet 19 covering the bottom surface of the battery laminate 5 removed from the state shown in FIG. 11 after the filler is cured. Since the bottom surface of the battery stack 5 is exposed at the portion where the waterproof sheet 19 has been removed, the heat conductive sheet 12 is pressed against this surface, and the battery stack 5 and the heat conductive sheet 12 are directly adhered to each other. It can be expected that resistance is reduced and heat dissipation by the cooling plate 61 is improved.
  • the waterproof structure can be maintained. .
  • the removal of the waterproof sheet 19 is preferably made smaller than the area of the heat conductive sheet 12.
  • the waterproof sheet 19b remaining without being removed can maintain airtightness at the overhanging portion 16b. Thereby, the region where the waterproof sheet 19 is removed and the bottom surface of the battery stack 5 is exposed can be completely covered with the heat conductive sheet 12.
  • a waterproof sheet 19 is disposed in the opening on the bottom surface of the battery stack 5 with the cover case 16 covering the periphery.
  • the waterproof sheet 19 is supported using a jig JG for fixing the waterproof sheet.
  • the jig JG has a size substantially the same as or slightly smaller than the opening, and presses the waterproof sheet 19 against the bottom surface of the battery stack 5 through the opening.
  • the filler is injected from, for example, a filler inlet that is previously opened in the covering case 16. Then, after the filler is cured, the jig JG is removed and the opening is opened. In this state, the filling layer 18 formed by the hardening of the filler can eliminate a gap between the outer surface of the battery stack 5 and the inner surface of the covering case 16. Further, from this state, as shown in FIG. 11, the cooling plate 61 is placed in the battery stack 5 so that the heat conduction sheet 12 is inserted into the opening and the bottom surface of the heat conduction sheet 12 is pressed by the cooling plate 61.
  • the cooling plate 61 can be in a heat conduction state on the bottom surface of the battery stack 5 via the heat conductive sheet 12 and the waterproof sheet 19, and the battery stack 5 can be cooled by performing heat exchange on this surface.
  • the waterproof sheet 19 may be partially removed before disposing the heat conductive sheet 12 as necessary.
  • the bottom surface of the covering case 16 is opened to thermally couple with the cooling plate 61 at the bottom surface of the battery stack 5.
  • the present invention is not limited to this configuration, and for example, the side surface or top surface of the battery stack can be opened, and thermal coupling with the cooling plate can be achieved at this portion.
  • the electrode terminal of a battery cell is generally provided in the top
  • a cooling plate is arrange
  • the battery stack 5 and the cooling plate 61 have a connection structure for fixing the battery stack 5 on the cooling plate 61.
  • the connection structure includes a fastening connection portion 44 provided so as to protrude from the lower end of the main body portion 41 of the fastening member 4, and a plate connection portion provided on the cooling plate 61 side. Composed. A plurality of fastening connecting portions 44 are provided apart from each other.
  • the lower end of the main body portion 41 is provided at three locations on both sides and in the middle. (Locking piece)
  • the fastening connecting portion 44 is a locking piece having a tip formed in a hook shape. This locking piece has a hook-like protruding direction that is outward from the battery stack 5. (Plate connecting part)
  • a plate connecting portion is provided as a connecting mechanism for connecting to the fastening connecting portion 44.
  • the plate connecting portion is provided at a position corresponding to the position where the fastening connecting portion 44 is provided.
  • a connecting bar 50 in which a locking hole 51 capable of locking a locking piece is formed is used.
  • the fastening member 4 can be easily fixed to the cooling plate 61 by inserting a hook-like locking piece into the locking hole 51 and locking it.
  • the connecting bar 50 has a shape in which the strip strip is bent in a substantially U shape in a sectional view.
  • the strip strip is made of a metal plate so as to exhibit sufficient strength.
  • the strength is improved by forming a step on the surface of the strip strip.
  • the length of the connecting bar 50 is set such that the bottom surface of the cooling plate 61 can be sandwiched between the substantially U-shaped bent portions.
  • a locking hole 51 is opened on the end face of the connecting bar 50 as a plate connecting portion. In this manner, the plate connecting portion can be easily added to the cooling plate 61 by using the connecting bar 50.
  • a coupling mechanism can be added without complicating the shape of the cooling plate 61 having a refrigerant circulation function or the like. (Refrigerant circulation mechanism)
  • the cooling plate 61 is provided with a refrigerant circulation mechanism therein.
  • FIG. 12 shows an example of such a refrigerant circulation mechanism.
  • a battery stack 5 in which a plurality of rectangular battery cells 1 are stacked is arranged on the upper surface of a cooling plate 61.
  • the cooling plate 61 is disposed in a thermally coupled state to the rectangular battery cells 1 constituting the battery stack 5.
  • the cooling plate 61 is provided with a refrigerant pipe, and the refrigerant pipe is connected to a cooling mechanism 69.
  • the assembled battery 10 can be effectively cooled directly by bringing the battery stack 5 into contact with the cooling plate 61.
  • each member disposed on the end face of the battery stack can be cooled together.
  • the cooling plate 61 containing the cooling pipe 60 that circulates the refrigerant therein is brought into contact with the coating case 16 to cool it, thereby improving heat dissipation and allowing the power supply device to be used stably even at high output. And can. (Cooling plate 61)
  • the cooling plate 61 is a heat radiating body for conducting heat of the rectangular battery cell 1 to dissipate it to the outside.
  • the cooling plate 61 incorporates a cooling pipe 60 that is a refrigerant pipe made of copper, aluminum, or the like that circulates a liquefied refrigerant that is a cooling liquid as a heat exchanger.
  • the cooling pipe 60 is thermally coupled to the upper surface plate of the cooling plate 61, and a heat insulating material is disposed between the cooling plate 60 and the bottom plate to insulate the space from the bottom plate.
  • the cooling plate 61 can be composed of only a metal plate. For example, it is made into the shape excellent in heat dissipation and heat transfer property, such as a metal body provided with a radiation fin. Or you may utilize not only metal but the heat-transfer sheet
  • the cooling plate 61 is cooled by supplying the coolant from the cooling mechanism 69 to the refrigerant piping provided inside.
  • the cooling plate 61 can cool the cooling liquid supplied from the cooling mechanism 69 more efficiently as a refrigerant that cools the cooling plate 61 with heat of vaporization that evaporates inside the refrigerant pipe.
  • two battery stacks 5 are placed on each cooling plate 61. As described above, two battery stacks 5 are connected in the length direction, that is, the stacking direction of the rectangular battery cells 1 to form one battery stack continuous body 10B, and the two batteries in such a connected state are formed.
  • the stacked body 5 is supported by one cooling plate 61. Two of these battery stack continuous bodies 10B are arranged in parallel to constitute the assembled battery 10.
  • the cooling plate 61 is extended in the stacking direction of the prismatic battery cells 1, and the cooling pipe 60 piped therein is meandered so as to be folded back at the edge, thereby forming three straight lines.
  • a cooling pipe 60 is disposed on the lower surface of the battery stack 5.
  • coolant is made common by connecting the cooling pipes 60 with battery lamination
  • a meandering cooling pipe can be divided at a folded portion to form a plurality of cooling pipes. Thereby, since the meandering portion can be eliminated, the weight can be reduced. At this time, the cooling pipes may be connected to share a refrigerant path.
  • position a cooling pipe can be changed suitably.
  • the cooling plate 61 also functions as a soaking means for equalizing the temperatures of the plurality of rectangular battery cells 1. That is, by adjusting the thermal energy absorbed by the cooling plate 61 from the rectangular battery cell 1, the rectangular battery cell whose temperature is increased, for example, the rectangular battery cell in the central portion is efficiently cooled, and the temperature is decreased, for example, both ends The cooling of the rectangular battery cells is reduced, and the temperature difference between the rectangular battery cells is reduced. As a result, the temperature unevenness of the prismatic battery cells can be reduced, and a situation in which some of the prismatic battery cells are deteriorated and overcharge and overdischarge can be avoided.
  • cooling plate 61 in the bottom face of the battery laminated body 5
  • the cooling plates can be arranged on both side surfaces of the prismatic battery cell, or can be arranged only on the side surfaces.
  • the cooling pipe 60 through which the internal refrigerant passes can be directly disposed on the lower surface of the battery stack 5 without using a metal plate such as a cooling plate. That is, as shown in the schematic cross-sectional view of FIG. 13, a plurality of rows of cooling pipes 60 are arranged on the lower surface of the covering case 16 that houses the battery stack 5, and the heat insulating member 14 is arranged between the cooling pipes 60. . In this way, the air pipe is eliminated around the cooling pipe 60 and is insulated by covering with the heat insulating member, so that the cooling pipe 60 can be efficiently cooled.
  • the cooling pipe for flowing the coolant can be directly applied to the battery stack 5 without interposing a metal plate such as a cooling plate, so that in this respect as well, the thickness, weight, and size can be reduced. It is done.
  • the cooling pipe 60 is formed in a flat shape having a flat surface facing the battery stack 5.
  • the cooling pipe 60 is made of a material excellent in heat conduction.
  • metal such as aluminum.
  • the aluminum cooling pipe is relatively soft, the surface can be slightly deformed by pressing at the contact interface with the battery stack 5 to improve the adhesion, and high thermal conductivity can be realized.
  • the heat insulating member 14 is disposed in the gap between the cooling pipes 60.
  • the heat insulating member 14 can be a heat insulating resin.
  • urethane resin can be suitably used.
  • the periphery of the cooling pipe 60 is covered with a heat insulating resin by potting. By doing so, the cooling pipe 60 and the bottom surface of the battery stack 5 can be reliably covered by potting to prevent the occurrence of condensation and enhance safety.
  • a heat insulating member is provided in the gap between the cooling pipes 60 or the lower surface of the cooling pipe 60 in a state where the cooling pipe 60 is in contact with the bottom surface of the battery stack 5 via the heat conductive sheet 12. 14 is filled and coated. However, if the upper surface of the cooling pipe 60 is also filled with the heat insulating member 14, the upper surface of the cooling pipe 60 can be insulated, and the heat conductive sheet provided between the prismatic battery cells 1 can be dispensed with.
  • the cover case 16 is a box type with an open lower surface and a closed upper surface.
  • the cover case has an open upper surface and a closed lower surface as described above.
  • a bottom box type can also be used.
  • the cooling plate may be a uniform metal plate, or may be insert-molded so that one or a plurality of strip-shaped metal plates are partially embedded.
  • the cooling plate is configured such that the metal plate 21c is disposed at a position corresponding to the cooling pipe 60, thereby improving the thermal coupling with the cooling pipe 60. Can do.
  • the power supply device 100 seals the battery stack 5 to have a waterproof structure, and protects the prismatic battery cell 1 from condensation and the like.
  • the inner space can be defined by the covering case 16 and the end plate 3, and the filling layer 18 can be disposed and sealed by potting or the like.
  • the end plate 3 is located outside, there is an advantage that it can be easily fixed to an exterior case, a frame, or the like.
  • the fastening member 4 is located outside the covering case 16, there is also an advantage that the fixing structure for fixing the cooling plate 61 can be reduced in size.
  • the battery stack can be fastened by fixing the end plate 3 to the covering case by providing the covering case with a sufficient strength such as being made of metal. If it is this structure, since a coating
  • the above power supply apparatus can be used as a vehicle-mounted power supply.
  • a vehicle equipped with a power supply device an electric vehicle such as a hybrid vehicle or a plug-in hybrid vehicle that runs with both an engine and a motor, or an electric vehicle that runs only with a motor can be used, and is used as a power source for these vehicles. . (Power supply for hybrid vehicles)
  • FIG. 15 shows an example in which a power supply device is mounted on a hybrid vehicle that runs with both an engine and a motor.
  • a vehicle HV equipped with the power supply device shown in this figure includes an engine 96 and a travel motor 93 that travel the vehicle HV, a power supply device 100 that supplies power to the motor 93, and a generator that charges a battery of the power supply device 100.
  • the power supply apparatus 100 is connected to a motor 93 and a generator 94 via a DC / AC inverter 95.
  • the vehicle HV travels by both the motor 93 and the engine 96 while charging / discharging the battery of the power supply device 100.
  • the motor 93 is driven to drive the vehicle when the engine efficiency is low, for example, during acceleration or low-speed driving.
  • the motor 93 is driven by power supplied from the power supply device 100.
  • the generator 94 is driven by the engine 96 or is driven by regenerative braking when the vehicle is braked to charge the battery of the power supply device 100. (Power
  • FIG. 16 shows an example in which a power supply device is mounted on an electric vehicle that runs only with a motor.
  • a vehicle EV equipped with the power supply device shown in this figure includes a traveling motor 93 for traveling the vehicle EV, a power supply device 100 that supplies power to the motor 93, and a generator 94 that charges a battery of the power supply device 100.
  • the motor 93 is driven by power supplied from the power supply device 100.
  • the generator 94 is driven by energy when regeneratively braking the vehicle EV and charges the battery of the power supply device 100. (Power storage device for power storage)
  • this power supply device can be used not only as a power source for a moving body but also as a stationary power storage facility.
  • a power source for home and factory use a power supply system that is charged with sunlight or midnight power and discharged when necessary, or a streetlight power supply that charges sunlight during the day and discharges at night, or during a power outage It can also be used as a backup power source for driving signals.
  • FIG. The power supply apparatus 100 shown in this figure forms a battery unit 82 by connecting a plurality of battery packs 81 in a unit shape.
  • Each battery pack 81 has a plurality of prismatic battery cells 1 connected in series and / or in parallel.
  • Each battery pack 81 is controlled by a power controller 84.
  • the power supply apparatus 100 drives the load LD after charging the battery unit 82 with the charging power supply CP. For this reason, the power supply apparatus 100 includes a charging mode and a discharging mode.
  • the load LD and the charging power source CP are connected to the power supply device 100 via the discharging switch DS and the charging switch CS, respectively.
  • ON / OFF of the discharge switch DS and the charge switch CS is switched by the power supply controller 84 of the power supply apparatus 100.
  • the power supply controller 84 switches the charging switch CS to ON and the discharging switch DS to OFF to permit charging from the charging power supply CP to the power supply apparatus 100.
  • the power controller 84 turns off the charging switch CS and turns on the discharging switch DS to discharge.
  • the mode is switched to permit discharge from the power supply apparatus 100 to the load LD.
  • the charge switch CS can be turned on and the discharge switch DS can be turned on to supply power to the load LD and charge the power supply device 100 at the same time.
  • the load LD driven by the power supply device 100 is connected to the power supply device 100 via the discharge switch DS.
  • the power supply controller 84 switches the discharge switch DS to ON, connects to the load LD, and drives the load LD with the power from the power supply apparatus 100.
  • the discharge switch DS a switching element such as an FET can be used. ON / OFF of the discharge switch DS is controlled by the power supply controller 84 of the power supply apparatus 100.
  • the power controller 84 also includes a communication interface for communicating with external devices. In the example of FIG. 17, it is connected to the host device HT according to an existing communication protocol such as UART or RS-232C. Further, if necessary, a user interface for the user to operate the power supply system can be provided.
  • Each battery pack 81 includes a signal terminal and a power supply terminal.
  • the signal terminals include a pack input / output terminal DI, a pack abnormality output terminal DA, and a pack connection terminal DO.
  • the pack input / output terminal DI is a terminal for inputting / outputting signals from other pack batteries and the power supply controller 84
  • the pack connection terminal DO is for inputting / outputting signals to / from other pack batteries which are child packs.
  • the pack abnormality output terminal DA is a terminal for outputting the abnormality of the battery pack to the outside.
  • the power supply terminal is a terminal for connecting the battery packs 81 in series and in parallel.
  • the battery units 82 are connected to the output line OL via the parallel connection switch 85 and are connected in parallel to each other.
  • a power supply apparatus for a plug-in hybrid electric vehicle, a hybrid electric vehicle, an electric vehicle, or the like that can switch between an EV traveling mode and an HEV traveling mode. It can be suitably used.
  • a backup power supply device that can be mounted on a rack of a computer server, a backup power supply device for a wireless base station such as a mobile phone, a power storage device for home use and a factory, a power supply for a street light, etc. Also, it can be used as appropriate for applications such as a backup power source such as a traffic light.
  • SYMBOLS 100 Power supply device 1 ... Square battery cell 2 ... Separator 3 ... End plate; 3b ... Packing 4 ... Fastening member 5 ... Battery laminated body 6 ... Bus bar 10 ... Assembly battery 10B ... Battery laminated continuous body 12 ... Thermal conductive sheet 14 ... Thermal insulation Member 16, 16B ... Covering case 16b ... Overhang part 18 ... Filling layer 19, 19b ... Waterproof sheet 21c ... Metal plate 24, 24B ... Cover part 26 ... Gas duct 41 ... Main part 42 ... Bent piece 43 ... Upper surface holding part 44 ... fastening connection part 50 ... connection bar 51 ... locking hole 60 ... cooling pipe 61 ... cooling plate 69 ... cooling mechanism 70 ...

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Abstract

L'invention porte sur un dispositif d'alimentation en énergie. L'invention a pour but de permettre de maintenir un couplage thermique entre un élément d'accumulateur et une plaque de refroidissement tout en évitant une situation dans laquelle il se produit de la condensation sur la surface de l'élément d'accumulateur. A cet effet, selon l'invention, on crée un dispositif d'alimentation en énergie qui comprend : un empilement d'accumulateur qui est formé en empilant une pluralité d'éléments d'accumulateur (1) de forme carrée ; une boîte de recouvrement (16) qui recouvre l'extérieur de l'empilement d'accumulateur (5), sauf dans une partie d'une surface de l'empilement d'accumulateur (5) ; et une plaque de refroidissement (61) qui est placée sur une surface de l'empilement d'accumulateur (5), dans un état de couplage thermique pour créer un échange de chaleur avec l'empilement d'accumulateur (5) en faisant circuler un réfrigérant dans cet empilement. Le dispositif d'alimentation en énergie comprend en outre une feuille imperméable (19) qui recouvre une première surface de l'empilement d'accumulateur (5), une couche de remplissage (18) formée par injection d'une matière de remplissage étant interposée entre l'empilement d'accumulateur (5) et la boîte de recouvrement (16), et la feuille imperméable (19) est fixée à la couche de remplissage (18).
PCT/JP2012/065725 2011-06-30 2012-06-20 Dispositif d'alimentation en énergie, véhicule comprenant ce dispositif, et procédé de fabrication d'un dispositif d'alimentation en énergie WO2013002090A1 (fr)

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CN108346843B (zh) * 2017-01-23 2023-10-20 福特全球技术公司 带电池附接部件的电动车辆电池组
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CN111477779A (zh) * 2019-01-23 2020-07-31 丰田自动车株式会社 电池装置
EP4012820A4 (fr) * 2019-08-07 2022-10-19 SANYO Electric Co., Ltd. Dispositif d'alimentation, véhicule électrique l'utilisant et dispositif de stockage d'énergie
CN114207912A (zh) * 2019-08-07 2022-03-18 三洋电机株式会社 电源装置和使用该电源装置的电动车辆以及蓄电装置
CN113140849A (zh) * 2020-01-20 2021-07-20 三星Sdi株式会社 壳体、电池系统、电动车辆和制造壳体的方法
JP7454411B2 (ja) 2020-03-04 2024-03-22 三洋電機株式会社 電池パック

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