WO2012042913A1 - Module de batterie, système de batterie comprenant celui-ci, véhicule électrique, corps mobile, dispositif de stockage d'énergie électrique, dispositif d'alimentation en énergie électrique et dispositif électrique - Google Patents

Module de batterie, système de batterie comprenant celui-ci, véhicule électrique, corps mobile, dispositif de stockage d'énergie électrique, dispositif d'alimentation en énergie électrique et dispositif électrique Download PDF

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Publication number
WO2012042913A1
WO2012042913A1 PCT/JP2011/005562 JP2011005562W WO2012042913A1 WO 2012042913 A1 WO2012042913 A1 WO 2012042913A1 JP 2011005562 W JP2011005562 W JP 2011005562W WO 2012042913 A1 WO2012042913 A1 WO 2012042913A1
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WO
WIPO (PCT)
Prior art keywords
battery
gas duct
gas
end plate
battery module
Prior art date
Application number
PCT/JP2011/005562
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English (en)
Japanese (ja)
Inventor
由知 西原
計美 大倉
岸本　圭司
Original Assignee
三洋電機株式会社
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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 WO2012042913A1 publication Critical patent/WO2012042913A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • 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
    • H01M10/62—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
    • H01M10/64—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
    • H01M10/655—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
    • H01M10/6561—Gases
    • 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 battery module, a battery system including the battery module, an electric vehicle, a moving body, a power storage device, a power supply device, and an electric device.
  • a battery system including a plurality of battery cells that can be charged and discharged is used as a drive source for a moving body such as an electric automobile.
  • the battery system described in Patent Document 1 includes a battery block (battery block) formed by stacking a plurality of rectangular battery cells (battery cells). Positive and negative electrode terminals of each battery cell are disposed on the upper surface of the battery block. A gas discharge duct is fixed on the battery block so as to pass between the positive and negative electrode terminals of each battery block.
  • Each battery cell has a safety valve to prevent the internal pressure from rising.
  • the gas discharged from the safety valve of each battery cell is discharged outside the battery system through the gas discharge duct.
  • a circuit board is fixed on the gas discharge duct.
  • An electronic component that realizes the battery state detection circuit is mounted on a circuit board.
  • Positive and negative electrode terminals of each battery cell are connected to a circuit board via a voltage detection line.
  • An object of the present invention is to provide a battery module that can be easily assembled, a battery system including the battery module, an electric vehicle, a moving body, a power storage device, a power supply device, and an electric device.
  • a battery module includes a plurality of battery cells each having a gas vent valve, and a first surface on which the gas vent valves of the plurality of battery cells are arranged, and a second surface different from the first surface.
  • a battery block, a voltage detection circuit for detecting the voltage of each battery cell, a holding member for holding the voltage detection circuit on the second surface of the battery block, and a plurality of battery cells passing over the holding member A plurality of wires connecting the electrode terminals and the voltage detection circuit, and a battery block first so as to form a flow path of the discharged gas when the gas is discharged through one of the gas vent valves of the plurality of battery cells. And a plurality of wirings that do not overlap the gas duct on the holding member.
  • the battery module can be easily assembled.
  • FIG. 1 is an external perspective view of the battery module according to the first embodiment.
  • FIG. 2 is a plan view of the battery module according to the first embodiment.
  • FIG. 3 is an end view of the battery module according to the first embodiment.
  • FIG. 4 is a schematic plan view for explaining the details of the connection between the bus bar and the printed circuit board.
  • FIG. 5 is an external perspective view for explaining the attachment of the gas duct to the battery block.
  • FIG. 6 is a plan view showing the surface of the gas duct directed to the battery block.
  • FIG. 7 is an external perspective view showing attachment of a power supply line to the battery module.
  • FIG. 8 is a block diagram for explaining the configuration and operation of the voltage detection circuit and the communication circuit.
  • FIG. 9 is an external perspective view showing the battery module according to the second embodiment.
  • FIG. 10 is a plan view of the battery module according to the second embodiment.
  • FIG. 11 is an exploded perspective view of the battery module according to the third embodiment.
  • FIG. 12 is an external perspective view of the battery module in a state where a gas duct is attached on the battery block.
  • FIG. 13 is an exploded perspective view of the battery module according to the fourth embodiment.
  • FIG. 14 is an external perspective view of the battery module in a state where a gas duct is attached on the battery block.
  • FIG. 15 is an exploded perspective view showing the configuration of the battery module according to the fifth embodiment.
  • FIG. 16 is an exploded perspective view showing the configuration of the battery module according to the fifth embodiment.
  • FIG. 17 is a plan view of a battery module according to the fifth embodiment.
  • FIG. 18 is a cross-sectional view for explaining attachment of the connection member.
  • FIG. 19 is an exploded perspective view of the battery module according to the sixth embodiment. 20 is a perspective view of the lid member of FIG. 19 as viewed obliquely from below.
  • FIG. 21 is a perspective view of the lid member of FIG. 19 as viewed obliquely from above.
  • FIG. 22 is a schematic plan view showing the configuration of the battery system.
  • FIG. 23 is an external perspective view of a first modification of the gas duct.
  • FIG. 24 is a schematic plan view showing a part of the battery system provided with the gas duct of FIG.
  • FIG. 25 is an external perspective view of a second modification of the gas duct.
  • FIG. 26 is an external perspective view of the battery module to which the gas duct of FIG.
  • FIG. 27 is a schematic plan view showing a third modification of the gas duct.
  • FIG. 28 is a block diagram illustrating a configuration of an electric vehicle including a battery system.
  • FIG. 29 is a block diagram illustrating a configuration of a power supply device including a battery system.
  • the battery system using the battery module according to the present embodiment is mounted on an electric vehicle (for example, an electric automobile) using electric power as a drive source.
  • FIG. 1 is an external perspective view of the battery module 100
  • FIG. 2 is a plan view of the battery module 100
  • FIG. 3 is an end view of the battery module 100.
  • X, Y, and Z three directions orthogonal to each other are the X direction
  • the Y direction and the Z direction are defined.
  • the X direction and the Y direction are directions parallel to the horizontal plane
  • the Z direction is a direction orthogonal to the horizontal plane.
  • the upward direction is the direction in which the arrow Z faces.
  • each battery cell 10 is a secondary battery such as a lithium ion battery or a nickel metal hydride battery.
  • the plurality of battery cells 10 are integrally fixed by a pair of end plates 92, a pair of upper end frames 93, and a pair of lower end frames 94 in a state of being arranged in the X direction.
  • the plurality of battery cells 10, the pair of end plates 92, the pair of upper end frames 93, and the pair of lower end frames 94 constitute a substantially rectangular parallelepiped battery block 10BB.
  • Battery block 10BB has an upper surface parallel to the XY plane.
  • Battery block 10BB has one end face and the other end face parallel to the YZ plane. Furthermore, the battery block 10BB has one side surface parallel to the XZ plane and the other side surface.
  • the upper surface of the battery block 10BB is an example of the first surface
  • the one end surface of the battery block 10BB is an example of the second surface.
  • the end plate 92 is formed of a metal or alloy such as an aluminum alloy die cast, and the upper end frame 93 and the lower end frame 94 are formed of a metal or alloy such as a cold rolled steel plate.
  • the printed circuit board 21 is attached to one end plate 92 of the pair of end plates 92.
  • the end plate 92 is an example of a holding member, and the printed circuit board 21 is held by the end plate 92 on one end surface of the battery block 10BB.
  • the voltage detection circuit 20 and the communication circuit 24 are mounted on the printed circuit board 21.
  • the voltage detection circuit 20 detects the terminal voltage of each battery cell 10.
  • the communication circuit 24 transmits the terminal voltage of each battery cell 10 detected by the voltage detection circuit 20 to an external device (such as a battery ECU 101 in FIG. 22 described later). Details of the voltage detection circuit 20 and the communication circuit 24 will be described later.
  • a gas duct GD extending in the X direction is provided on the upper surface of the battery block 10BB.
  • One end of the gas duct GD is attached on one end plate 92.
  • the gas duct GD extends outside the battery module 100 through the plurality of battery cells 10 and the other end plate 92.
  • the gas duct GD has a hollow structure, and the gas discharged from each battery cell 10 is guided to the outside of the battery module 100 through the inside of the gas duct GD. Details of the gas duct GD will be described later.
  • Each battery cell 10 has a plus electrode 10a and a minus electrode 10b on its upper surface so as to be arranged in the Y direction. As shown in FIG. 3, each electrode 10a, 10b is inclined and provided so as to protrude upward.
  • the battery cells 10 adjacent to one end plate 92 to the battery cells 10 adjacent to the other end plate 92 are referred to as the first to 18th battery cells 10.
  • each battery cell 10 is arranged so that the positional relationship between the plus electrode 10 a and the minus electrode 10 b in the Y direction is reversed between each two adjacent battery cells 10.
  • the positive electrodes 10a and the negative electrodes 10b of the two adjacent battery cells 10 are alternately arranged in the X direction. Further, in the vicinity of the other side surface of the battery block 10BB, the minus electrodes 10b and the plus electrodes 10a of the two adjacent battery cells 10 are alternately arranged in the X direction.
  • one electrode 10a, 10b of the plurality of battery cells 10 constitutes the first terminal row TL1 (FIG. 2) aligned in the X direction, and the plurality of battery cells 10
  • the other electrode 10a, 10b constitutes a second terminal row TL2 (FIG. 2) in which the other electrodes 10a, 10b are aligned in the X direction.
  • the first terminal row TL1 and the second terminal row TL2 are arranged in parallel to each other with an interval therebetween.
  • the gas duct GD is disposed between the first terminal row TL1 and the second terminal row TL2.
  • the bus bar 40 is attached to each of the two electrodes 10a and 10b adjacent in the X direction. Thereby, the some battery cell 10 is connected in series. Specifically, a common bus bar 40 is attached to the negative electrode 10 b of the first battery cell 10 and the positive electrode 10 a of the second battery cell 10. A common bus bar 40 is attached to the negative electrode 10b of the second battery cell 10 and the positive electrode 10a of the third battery cell 10. Similarly, a common bus bar 40 is attached to the minus electrode 10b of each odd-numbered battery cell 10 and the plus electrode 10a of the even-numbered battery cell 10 adjacent thereto. A common bus bar 40 is attached to the minus electrode 10b of each even-numbered battery cell 10 and the plus electrode 10a of the odd-numbered battery cell 10 adjacent thereto.
  • the bus bar 40a is attached to the plus electrode 10a of the first battery cell 10 and the minus electrode 10b of the 18th battery cell 10, respectively.
  • bus bar 40 attached to each two adjacent electrodes 10a and 10b has a substantially rectangular shape.
  • the bus bar 40 has a pair of electrode connection holes arranged in the longitudinal direction.
  • the bus bar 40a attached to one electrode 10a, 10b has a substantially square shape.
  • One electrode connection hole is formed in the bus bar 40a.
  • a male screw is formed on the positive electrode 10a and the negative electrode 10b of each battery cell 10.
  • the bus bar 40 is attached to the adjacent plus electrode 10a and minus electrode 10b, the plus electrode 10a and minus electrode 10b are fitted into the electrode connection holes formed in each bus bar 40.
  • a nut (not shown) is attached to the male threads of the plus electrode 10a and the minus electrode 10b.
  • the positive electrode 10 a of the first battery cell 10 adjacent to one end plate 92 is the highest potential positive electrode 10 a in the battery module 100.
  • One end of a relay member 41 having a substantially L shape is attached to the plus electrode 10 a of the first battery cell 10.
  • the minus electrode 10b of the 18th battery cell 10 adjacent to the other end plate 92 is the minus electrode 10b having the lowest potential in the battery module 100.
  • One end of a relay member 41 having a substantially L shape is also attached to the negative electrode 10b of the eighteenth battery cell 10.
  • Screw holes 99a and 99b are formed on the upper surface of each end plate 92 so as to be aligned in the Y direction. As will be described later, a screw hole 99c is formed in the upper surface portion of the end plate 92 between the screw holes 99a and 99b, and one end of the gas duct GD is attached on the screw hole 99c. In the Y direction, the screw holes 99a and 99b are located between the first terminal row TL1 and the second terminal row TL2.
  • the other end portion of the relay member 41 connected to the positive electrode 10a of the first battery cell 10 is disposed on the screw hole 99b (FIG. 2) closest to the second terminal row TL2.
  • the other end portion of the relay member 41 connected to the negative electrode 10b of the 18th battery cell 10 on the screw hole 99a (FIG. 2) closest to the second terminal row TL2. Is placed.
  • the other end of the relay member 41 is preferably arranged so as not to overlap the gas duct GD and the FPC board 50.
  • Each relay member 41 has, for example, a structure in which nickel plating is applied to the surface of tough pitch copper, similarly to the bus bars 40 and 40a.
  • a power supply line 501 (see FIG. 7 to be described later) for supplying the power of the plurality of battery cells 10 to an external device (for example, a load such as a motor) is connected to the other end portion of these relay members 41.
  • the portion of the end plate 92 around the screw holes 99a and 99b is made of an insulating material.
  • a long flexible printed circuit board (hereinafter, referred to as “X”) extends in the X direction between one side surface of the battery block 10BB and the first terminal row TL1 located in the vicinity of the one side surface. 50 (abbreviated as FPC board).
  • the FPC board 50 is connected to the plurality of bus bars 40.
  • a long FPC board 50 is disposed so as to extend in the X direction between the other side surface of the battery block 10BB and the second terminal row TL2 located in the vicinity of the other side surface. Is done.
  • the FPC board 50 is connected to the plurality of bus bars 40, 40a.
  • These FPC boards 50 have a configuration in which a plurality of conductor wires 51 and 52 (see FIG. 4 described later) are formed on an insulating layer, and have flexibility and flexibility.
  • polyimide is used as the material of the insulating layer constituting the FPC board 50
  • copper is used as the material of the conductor wires 51 and 52 (see FIG. 4 described later).
  • PTC Positive Temperature Coefficient
  • Each FPC board 50 is folded at a right angle toward the inside in the vicinity of the upper end portion of one end plate 92 (the end plate 92 to which the printed circuit board 21 is attached), and is further folded downward to form the printed circuit board 21. Connected. A pair of notches 92g are formed at the upper end of each end plate 92 so as to sandwich the screw holes 99a and 99b in the Y direction. The two FPC boards 50 are arranged so as to pass through the pair of notches 92g, respectively. This prevents the two FPC boards 50 from being shifted in the Y direction.
  • FIG. 4 is a schematic plan view for explaining the details of the connection between the bus bars 40 and 40a and the printed circuit board 21.
  • FIG. 4 the gas duct GD is not shown.
  • the printed circuit board 21 is provided with a voltage detection circuit 20.
  • the FPC board 50 is provided with a plurality of conductor lines 51 and 52 so as to correspond to the plurality of bus bars 40 and 40a.
  • the conductor lines 51 and 52 are examples of wiring that connects the electrode terminals of the battery cell and the voltage detection circuit.
  • the plurality of conductor lines 51 and 52 of the FPC board 50 along the first terminal row TL1 are examples of the first wiring group, and the plurality of conductors provided on the FPC board 50 along the second terminal row TL2. Lines 51 and 52 are examples of the second wiring group.
  • Each conductor line 51 is provided so as to extend in parallel to the Y direction between the bus bars 40, 40a and the PTC element 60 disposed in the vicinity of the bus bar 40, and each conductor line 52 includes the PTC element 60 and the FPC board. 50 is provided so as to extend in parallel with the X direction.
  • Each bus bar 40, 40a is connected to one end of each conductor wire 51 by, for example, soldering or welding. Thereby, each bus bar 40, 40 a is fixed to the FPC board 50. Also, a pair of terminals (not shown) of the PTC element 60 are connected to the other end of each conductor wire 51 and one end of each conductor wire 52 by, for example, soldering.
  • the printed circuit board 21 is provided with a plurality of connection terminals 22 corresponding to the plurality of conductor lines 52 of the FPC board 50.
  • the plurality of connection terminals 22 and the voltage detection circuit 20 are electrically connected on the printed circuit board 21 via a plurality of conductor lines (not shown).
  • the other end of each conductor wire 52 of the FPC board 50 is connected to the corresponding connection terminal 22 by, for example, soldering or welding.
  • each bus bar 40, 40a is electrically connected to the voltage detection circuit 20 via the FPC board 50.
  • the voltage detection circuit 20 can detect the terminal voltage of each battery cell 10.
  • the PTC element 60 has a resistance temperature characteristic in which the resistance value rapidly increases when the temperature exceeds a certain value. Therefore, when a short circuit occurs in the voltage detection circuit 20 or the conductor wire 52, the temperature of the PTC element 60 increases due to the current flowing through the short circuit path. In this case, the resistance value of the PTC element 60 is increased. Thereby, the state where a large current flows through the short-circuit path including the PTC element 60 is quickly eliminated.
  • the voltage detection circuit 20 and the communication circuit 24 are electrically connected on the printed circuit board 21 via a plurality of conductor lines (not shown). Thereby, the terminal voltage of each battery cell 10 detected by the voltage detection circuit 20 is transmitted to an external device (such as a battery ECU 101 in FIG. 22 described later) via the communication circuit 24.
  • an external device such as a battery ECU 101 in FIG. 22 described later
  • FIG. 5 is an external perspective view for explaining the attachment of the gas duct GD to the battery block 10BB.
  • FIG. 6 is a plan view showing a surface of the gas duct GD directed to the battery block 10BB.
  • a gas vent valve 10 v is provided at the center of the upper surface of each battery cell 10.
  • the pressure inside the battery cell 10 rises to a predetermined value, the gas inside the battery cell 10 is discharged from the gas vent valve 10v of the battery cell 10. Thereby, the excessive raise of the pressure inside the battery cell 10 is prevented.
  • a protruding piece GDx is formed at one end of the gas duct GD.
  • a through hole GDy is formed in the protruding piece GDx.
  • a long opening GH is provided on the surface of the gas duct GD directed to the battery block 10BB (hereinafter referred to as the lower surface of the gas duct GD).
  • a screw hole 99 c is provided between the screw holes 99 a and 99 b on the upper surface of the end plate 92.
  • the screw hole 99c is an example of a gas duct attachment part.
  • the gas duct GD is arranged on the upper surface of the battery block 10BB so that the through hole GDy of the protruding piece GDx overlaps the screw hole 99c of the end plate 92 and the openings GH overlap the gas vent valves 10v of all the battery cells 10.
  • the screw N2 is screwed into the screw hole 99c of the end plate 92 through the through hole GDy of the protruding piece GDx.
  • gas duct GD is fixed to the upper surface of battery block 10BB.
  • the gas discharged from the gas vent valves 10v of the plurality of battery cells 10 is guided outside without diffusing through the inside of the gas duct GD (FIG. 1). (See the thick dotted arrow).
  • a pair of FPC boards 50 are respectively arranged so as to pass through a pair of notches 92g (FIGS. 2 and 3) of one end plate 92, and screw holes formed between the pair of notches 92g.
  • a gas duct is mounted on 99c.
  • substrate 50 is arrange
  • FIG. 7 is an external perspective view showing attachment of the power supply line to the battery module 100.
  • FIG. 7 mainly shows one end plate 92 to which the printed circuit board 21 is attached and its peripheral portion.
  • a connecting hole 41a is formed at one end of the relay member 41, and a connecting hole 41b is formed at the other end.
  • the plus electrode 10 a of the first battery cell 10 is fitted into the connection hole 41 a of the relay member 41.
  • the one end part of the relay member 41 overlaps with the bus bar 40a.
  • the other end of the relay member 41 is disposed on the upper surface of the end plate 92 so that the connection hole 41b of the relay member 41 overlaps the screw hole 99b.
  • An annular connecting portion 501a is provided at one end of a power supply line 501 for connecting the battery module 100 and an external device (for example, a load such as a motor).
  • an external device for example, a load such as a motor.
  • the screw N1 passes through the connection portion 501a of the power line 501 and the connection hole 41b of the relay member 41 to the screw hole 99b of the end plate 92. Screwed.
  • the other end of the relay member 41 and the power supply line 501 are fixed to the upper surface on the end plate 92.
  • the bus bar 40a and the power supply line 501 are connected to each other via the relay member 41.
  • the relay member 41 is attached to one end plate 92 of the pair of end plates 92 constituting the battery block 10BB, but the relay member 41 is also attached to the other end plate 92 in the same manner.
  • the printed circuit board 21 is not attached to the other end plate 92.
  • the other end of the relay member 41 is fixed on the screw hole 99a of the screw holes 99a and 99b.
  • FIG. 8 is a block diagram for explaining the configuration and operation of the voltage detection circuit 20 and the communication circuit 24 mounted on the printed circuit board 21.
  • the voltage detection circuit 20 includes a multiplexer 20a, an A / D (analog / digital) converter 20b, and a plurality of differential amplifiers 20c.
  • Each differential amplifier 20c of the voltage detection circuit 20 has two input terminals and one output terminal. Each differential amplifier 20c differentially amplifies the voltage input to the two input terminals, and outputs the amplified voltage from the output terminal. The two input terminals of each differential amplifier 20c are electrically connected to the plus electrode and the minus electrode of each battery cell 10 through the conductor line 51, the PTC element 60, and the conductor line 52, respectively.
  • each differential amplifier 20c The voltage between the positive electrode and the negative electrode of each battery cell 10 is differentially amplified by each differential amplifier 20c.
  • the output voltage of each differential amplifier 20 c corresponds to the terminal voltage of each battery cell 10. Terminal voltages output from the plurality of differential amplifiers 20c are applied to the multiplexer 20a.
  • the multiplexer 20a sequentially outputs the terminal voltages supplied from the plurality of differential amplifiers 20c to the A / D converter 20b.
  • the A / D converter 20 b converts the terminal voltage output from the multiplexer 20 a into a digital value and supplies the digital value to the communication circuit 24.
  • the terminal voltage applied to the communication circuit 24 is transmitted to an external device (such as a battery ECU 101 in FIG. 22 described later).
  • the voltage detection circuit 20 is made of, for example, an ASIC (Application Specific Integrated Circuit).
  • the communication circuit 24 is realized by hardware such as a CPU (Central Processing Unit) and a memory, and software such as a computer program. In this case, the function of the communication circuit 24 is realized by the CPU executing the computer program stored in the memory.
  • the communication circuit 24 may be configured by hardware such as an ASIC.
  • the printed circuit board 21 and the gas duct GD are arranged on different surfaces of the battery block 10BB, and the printed circuit board 21 A pair of FPC boards 50 for connecting the electrodes 10a, 10b of each battery cell 10 are arranged on the end plate 92 so as not to overlap the gas duct GD vertically. This facilitates wiring work between the printed circuit board 21 and the electrodes 10a and 10b of each battery cell 10, and facilitates attachment and removal of the gas duct GD. Therefore, the battery module 100 can be easily assembled.
  • the FPC board 50 since the position of the FPC board 50 is secured so as not to contact the gas duct GD on the end plate 92, the FPC board 50 is damaged and the conductor wires 51 and 52 are disconnected due to the gas duct GD contacting the FPC board 50. Is prevented.
  • vibration during traveling is applied to the battery module 100. Even in this case, the contact between the gas duct GD and the FPC board 50 is prevented, and the FPC board 50 Damage and disconnection of the conductor wires 51 and 52 are prevented.
  • one end portion of the gas duct GD is attached to the screw hole 99c of the one end plate 92, and each FPC board 50 is disposed so as to pass through the notch 92g of the one end plate 92.
  • the gas duct GD and each FPC board 50 are securely fixed on the end plate 92 without overlapping each other.
  • the FPC board 50 that integrally includes a plurality of conductor wires 51 and 52 that connect the printed circuit board 21 and the electrodes 10a and 10b of each battery cell 10 is used, wiring work becomes easier.
  • a gas duct GD is disposed between the first and second terminal rows TL1, TL2, and the first and second terminals are arranged along the first and second terminal rows TL1, TL2.
  • a pair of FPC boards 50 are respectively arranged outside the rows TL1 and TL2.
  • the battery module according to the present embodiment includes a plurality of battery cells each having a gas vent valve, and the first surface is different from the first surface where the gas vent valves of the plurality of battery cells are arranged.
  • a battery block having a second surface; a voltage detection circuit for detecting a voltage of each battery cell; a holding member for holding the voltage detection circuit on the second surface of the battery block;
  • a plurality of wirings connecting the electrode terminals of the battery cell and the voltage detection circuit, and a flow path of the exhausted gas when the gas is exhausted through any of the gas vent valves of the plurality of battery cells
  • a gas duct extending on the first surface of the battery block and on the holding member, and the plurality of wires do not overlap the gas duct on the holding member.
  • the plurality of wires do not overlap with the gas duct on the holding member means that the wires, the holding member, and the gas duct do not overlap each other in one direction.
  • the gas vent valves of a plurality of battery cells are arranged on the first surface of the battery block.
  • a voltage detection circuit for detecting the voltage of each battery cell is held on the second surface of the battery block by the holding member.
  • a plurality of electrode terminals of the plurality of battery cells and the voltage detection circuit are connected via a plurality of wires.
  • the plurality of wires extend so as to pass over the holding member.
  • a gas duct is provided to extend on the first surface of the battery block and the holding member. The gas duct forms a gas flow path when the gas is discharged through any of the gas vent valves of the plurality of battery cells.
  • the voltage detection circuit and the gas duct are provided on different surfaces of the battery block, and a plurality of wires do not overlap the gas duct on the holding member. Thereby, wiring work becomes easy, and attachment and removal of a gas duct become easy. Therefore, the battery module can be easily assembled.
  • the battery module further includes a flexible printed circuit board having a plurality of wires as a conductor pattern, and the flexible printed circuit board is disposed on the holding member so as not to overlap the gas duct.
  • the holding member has a guide portion that guides the plurality of wires from the plurality of electrode terminals of the plurality of battery cells to the voltage detection circuit.
  • the holding member further has a gas duct attachment part to which the gas duct is attached.
  • the plurality of battery cells are arranged in one direction, and the holding member is provided adjacent to the battery cell located at one end of the plurality of battery cells, and the plurality of electrodes of the plurality of battery cells.
  • the terminals constitute first and second terminal rows arranged in parallel to each other along one direction on the first surface of the battery block, and the plurality of wires are arranged on the first surface.
  • the first and second wiring groups each extending in one direction along the two terminal rows, and the gas vent valves of the plurality of battery cells are connected to the first terminal row and the first terminal row on the first surface of the battery block.
  • the gas duct is arranged between the first wiring group and the second wiring group on the holding member.
  • a gas duct is provided on the first surface of the battery block so as to extend between the first wiring group along the first terminal row and the second wiring group along the second terminal row, A gas duct is disposed on the holding member between the first wiring group and the second wiring group.
  • FIG. 9 is an external perspective view showing the battery module 100 according to the second embodiment
  • FIG. 10 is a plan view of the battery module 100 of FIG.
  • the protruding piece GDx of the gas duct GD is attached to one end plate 92 to which the printed circuit board 21 is attached.
  • the gas duct GD is disposed in the opposite direction to that of the first embodiment, and the protruding piece GDx of the gas duct GD is attached to the other end plate 92 to which the printed circuit board 21 is not attached. .
  • the gas duct GD is disposed so as to extend to the outside of the battery module 100 through the plurality of battery cells 10 and one end plate 92. On one end plate 92, a gas duct GD is disposed between the two FPC boards 50. Thereby, the gas duct GD and each FPC board 50 do not overlap each other.
  • the printed circuit board 21 and the gas duct GD are arranged on different surfaces of the battery block 10BB, and the printed circuit board 21 and the electrodes 10a and 10b of each battery cell 10 are connected.
  • a pair of FPC boards 50 are arranged on the end plate 92 so as not to overlap the gas duct GD. This facilitates wiring work and facilitates attachment and removal of the gas duct GD. Therefore, the battery module 100 can be easily assembled.
  • FIG. 11 is an exploded perspective view of the battery module 100 according to the third embodiment.
  • FIG. 12 is an external perspective view of the battery module 100 with the gas duct GD attached to the battery block 10BB.
  • the plurality of battery cells 10, the pair of end plates 92, the pair of upper end frames 93, and the pair of lower end frames 94 constitute a substantially rectangular parallelepiped battery block 10BB.
  • Each battery cell 10 has a plus electrode 10a and a minus electrode 10b on its upper surface so as to be arranged in the Y direction.
  • a first terminal row TL1 in which one electrode 10a, 10b of the plurality of battery cells 10 is aligned in the X direction constitutes a second terminal array TL1 in which the other electrode 10a, 10b of the plurality of battery cells 10 is aligned in the X direction.
  • the terminal row TL2 is configured.
  • the first terminal row TL1 and the second terminal row TL2 are arranged in parallel to each other with an interval therebetween.
  • Two adjacent electrodes 10a and 10b are fitted into a flat bus bar 40p.
  • the electrodes 10a and 10b are laser welded to the bus bar 40p.
  • the plurality of bus bars 40p are arranged along the first terminal row TL1 and the second terminal row TL2, and the plurality of battery cells 10 are connected in series.
  • a power line 501 is connected to the bus bar 40p attached to the plus electrode 10a having the highest potential and the bus bar 40p attached to the plus electrode 10a having the highest potential.
  • a gas vent valve 10v is provided in the center of the upper surface of each battery cell 10.
  • Two FPC boards 50 are arranged on the upper surface of the battery block 10BB so as to sandwich the gas vent valves 10v of the plurality of battery cells 10 between the first terminal row TL1 and the second terminal row TL2. .
  • One FPC board 50 is disposed between the gas vent valves 10v of the plurality of battery cells 10 and the first terminal row TL1 so as not to overlap the gas vent valves 10v of the plurality of battery cells 10.
  • One side of one FPC board 50 is connected in common to a plurality of bus bars 40p provided in the first terminal row TL1.
  • the other FPC board 50 is disposed between the gas vent valves 10v of the plurality of battery cells 10 and the second terminal row TL2 so as not to overlap the gas vent valves 10v of the plurality of battery cells 10. .
  • One side portion of the other FPC board 50 is connected in common to the bus bar 40p provided in the second terminal row TL2.
  • a protective member 95 having a pair of side portions and a bottom portion is attached to the end plate 92 so as to protect both ends and the lower portion of the printed circuit board 21.
  • the two FPC boards 50 are folded downward at the upper end portion of the protective member 95 and connected to the printed circuit board 21.
  • the printed circuit board 21 is protected by being covered with a protective member 95. Also in the present embodiment, the voltage detection circuit 20 and the communication circuit 24 are mounted on the printed circuit board 21. Note that the protection member 95 may not be attached to the end plate 92.
  • a cooling plate 96 is provided on the lower surface of the battery block 10BB so as to be in contact with the lower surfaces of the plurality of battery cells 10.
  • the cooling plate 96 has a refrigerant inlet 96a and a refrigerant outlet 96b. Inside the cooling plate 96, a circulation path connected to the refrigerant inlet 96a and the refrigerant outlet 96b is formed. When a coolant such as cooling water flows into the coolant inlet 96a, the coolant passes through the circulation path inside the cooling plate 96 and flows out from the coolant outlet 96b. Thereby, the cooling plate 96 is cooled. As a result, the plurality of battery cells 10 are cooled.
  • Screw holes 99a, 99b, 99c are formed on the upper surface of each end plate 92.
  • the screw hole 99a is located on the extension line of the first terminal row TL1 in the X direction
  • the screw hole 99b is located on the extension line of the second terminal row TL2 in the X direction.
  • the screw hole 99c is located at the center of the upper surface of the end plate 92 in the Y direction.
  • the screw hole 99a is located on the extension line of the second terminal row TL2 in the X direction
  • the screw hole 99b is located on the extension line of the first terminal row TL1 in the X direction.
  • the screw hole 99c is located at the center of the upper surface of the end plate 92 in the Y direction.
  • each end plate 92 On the upper surface of each end plate 92, a part of the FPC board 50 is disposed between the two screw holes 99a and 99c in the Y direction and between the two screw holes 99b and 99c in the Y direction.
  • the power line 501 is similarly connected to the bus bar 40p.
  • the bus bar 40p laser-welded to the negative electrode 10b of the battery cell 10 adjacent to the other end plate 92 on the screw hole 99a out of the three screw holes 99a, 99b, 99c.
  • a power line 501 is connected.
  • the battery block 10BB is arranged so that the through hole GDy of the protruding piece GDx overlaps the screw hole 99c of one end plate 92 to which the printed circuit board 21 is attached and the openings GH overlap the gas vent valves 10v of all the battery cells 10.
  • a gas duct GD is disposed on the upper surface. The configuration of the gas duct GD is the same as the configuration shown in FIG.
  • the printed circuit board 21 and the gas duct GD are arranged on different surfaces of the battery block 10BB, and the printed circuit board 21 A pair of FPC boards 50 for connecting the electrodes 10a, 10b of each battery cell 10 are arranged on the end plate 92 so as not to overlap the gas duct GD vertically. This facilitates wiring work and facilitates attachment and removal of the gas duct GD. Therefore, the battery module 100 can be easily assembled.
  • a pair of FPC boards 50 are respectively arranged inside the first and second terminal rows TL1, TL2 along the first and second terminal rows TL1, TL2, and the pair of FPCs.
  • a gas duct GD is disposed between the substrates 50.
  • the gas duct GD is disposed in the reverse direction, and the protruding piece GDx of the gas duct GD may be attached to the end plate 92 to which the printed circuit board 21 is not attached. .
  • each FPC board 50 is arranged so as not to overlap the gas duct GD vertically.
  • FIG. 13 is an exploded perspective view of the battery module 100 according to the fourth embodiment.
  • a plurality of battery cells 10, a plurality of spacers SP, and end plate 92 constitute a substantially rectangular parallelepiped battery block 10BB.
  • the plurality of battery cells 10 and the plurality of spacers SP are arranged alternately in the X direction.
  • An end plate 92 is provided adjacent to the battery cell 10 located at one end in the X direction.
  • the spacer SP is made of a rectangular plate member.
  • the end plate 92 is made of a rectangular plate member.
  • the end plate 92 holds the printed circuit board 21 on one end surface of the battery block 10BB.
  • the end plate 92 and the spacer SP used in the present embodiment are formed of an insulating resin.
  • Each guide hook g is provided at the upper end of each spacer SP so as to be aligned in the Y direction.
  • Each guide hook g is composed of two key-like protrusions facing each other.
  • Each battery cell 10 has a plus electrode 10a and a minus electrode 10b on its upper surface so as to be arranged in the Y direction. Also in this battery module 100, one electrode 10a, 10b of the plurality of battery cells 10 constitutes a first terminal row TL1 aligned in the X direction, and the other electrode 10a, 10b of the plurality of battery cells 10 is X A second terminal row TL2 aligned in the direction is configured. The first terminal row TL1 and the second terminal row TL2 are arranged in parallel to each other with an interval therebetween.
  • a positive electrode 10a of a battery cell 10 located at one end (hereinafter referred to as one end side battery cell 10) and a negative electrode 10b of a battery cell 10 located at the other end (hereinafter referred to as other end side battery cell 10) Except for each, two adjacent electrodes 10a and 10b are fitted into a flat bus bar 40q. In this state, the electrodes 10a and 10b are laser welded to the bus bar 40q.
  • the plus electrode 10a of the battery cell 10 is laser-welded to the bus bar 40q.
  • the plurality of bus bars 40q are arranged along the first terminal row TL1 and the second terminal row TL2, and the plurality of battery cells 10 are connected in series.
  • a plurality of wirings 53 are provided corresponding to the plurality of bus bars 40q and the negative electrode 10b of the battery cell 10 at the other end.
  • Each wiring 53 is composed of, for example, a conductor wire and a resin-coated tube that covers the conductor wire.
  • a connection piece 53 t is attached to one end of each wiring 53.
  • a connection piece 53t is connected to each of the plurality of bus bars 40q and the negative electrode 10b of the other end side battery cell 10 by laser welding.
  • the two guide hooks g formed on the plurality of spacers SP are arranged between the first terminal row TL1 and the second terminal row TL2 in the first terminal row TL1. Located in the vicinity and in the vicinity of the second terminal row TL2.
  • the wiring 53 connected to the bus bar 40q of the first terminal row TL1 is held by a plurality of guide hooks g located in the vicinity of the first terminal row TL1. Thereby, the plurality of wirings 53 are bundled by the plurality of guide hooks g and guided to the end plate 92 so as to extend in the X direction in the vicinity of the first terminal row TL1.
  • the wiring 53 connected to the bus bar 40q of the second terminal row TL2 and the negative electrode 10b of the other end side battery cell 10 is held by a plurality of guide hooks g located in the vicinity of the second terminal row TL2.
  • the plurality of wirings 53 are bundled by the plurality of guide hooks g and guided to the end plate 92 so as to extend in the X direction in the vicinity of the second terminal row TL2.
  • the plurality of wirings 53 disposed so as to extend in the X direction in the vicinity of the first terminal row TL1 are referred to as a first wiring group 53x, and are disposed so as to extend in the X direction in the vicinity of the second terminal row TL2.
  • the plurality of wirings 53 to be used are referred to as a second wiring group 53y.
  • Screw holes 99a, 99b, 99c are formed on the upper surface of the end plate 92.
  • the screw hole 99a is located on the extension line of the first terminal row TL1 in the X direction
  • the screw hole 99b is located on the extension line of the second terminal row TL2 in the X direction.
  • the screw hole 99c is located at the center of the upper surface of the end plate 92 in the Y direction.
  • the positive electrode 10a of the one end side battery cell 10 is fitted into one electrode connection hole of the bus bar 40q, and the other electrode connection hole of the bus bar 40q overlaps the screw hole 99b of the end plate 92. Laser welded.
  • the screw N1 is screwed into the screw hole 99c of the end plate 92 through the annular connection portion 501a of the power supply line 501 and the other electrode connection hole of the bus bar 40q.
  • bus bar 40q and power supply line 501 are connected to each other.
  • One end of another power line 501 is connected to the negative electrode 10b of the other end side battery cell 10 by laser welding.
  • guide hooks g are formed on the upper surface of the end plate 92 between the screw holes 99a and 99c and between the screw holes 99b and 99c, respectively.
  • a part of the first wiring group 53x is disposed in a guide hook g formed between the screw hole 99a and the screw hole 99c.
  • a part of the second wiring group 53y is arranged in the guide hook g formed between the screw hole 99b and the screw hole 99c.
  • a connector 531 is provided at the other end of the first wiring group 53x.
  • a connector 532 is also provided at the other end of the second wiring group 53y.
  • Connectors 531 b and 532 b corresponding to the connectors 531 and 532 are mounted on the printed circuit board 21 provided on the end plate 92.
  • the connector 531 of the first wiring group 53x is connected to the connector 531b mounted on the printed circuit board 21, and the connector 532 of the second wiring group 53y is connected to the connector 532b mounted on the printed circuit board 21.
  • the gas duct GD is arranged on the upper surface of the battery block 10BB so that the through hole GDy of the protruding piece GDx overlaps the screw hole 99c of the end plate 92 and the openings GH overlap the gas vent valves 10v of all the battery cells 10.
  • the configuration of the gas duct GD is the same as the configuration shown in FIG.
  • gas duct GD is fixed on battery block 10BB.
  • the gas duct GD is disposed between the first wiring group 53x and the second wiring group 53y.
  • the printed circuit board 21 and the gas duct GD are arranged on different surfaces of the battery block 10BB, and the printed circuit board 21 And a plurality of wires 53 for connecting the electrodes 10a and 10b of each battery cell 10 are arranged on the end plate 92 so as not to overlap the gas duct GD vertically. This facilitates wiring work and facilitates attachment and removal of the gas duct GD. Therefore, the battery module 100 can be easily assembled.
  • the first and second wiring groups 53x and 53y are arranged inside the first and second terminal rows TL1 and TL2 along the first and second terminal rows TL1 and TL2.
  • the gas duct GD is arranged between the first wiring group 53x and the second wiring group 53y.
  • one end of the gas duct GD is attached on the screw hole 99c of one end plate 92, and a plurality of wirings 53 are held by guide hooks g on the end plate 92. Accordingly, the gas duct GD and the plurality of wirings 53 are securely fixed on the end plate 92 in a state where they do not overlap each other.
  • the plurality of wirings are a plurality of conductor wires each covered with an insulating material, and the plurality of conductor wires are arranged so as not to overlap the gas duct on the holding member.
  • FIGS. 15 and 16 are exploded perspective views showing the configuration of the battery module 100 according to the fifth embodiment.
  • FIG. 17 is a plan view of the battery module 100 according to the fifth embodiment.
  • a plurality of battery cells 10, a plurality of spacers SP, and a pair of end plates 92 constitute a battery block 10BB.
  • a plurality of battery cells 10 and a plurality of spacers SP are arranged alternately in the X direction.
  • a pair of end plates 92 are arranged so as to be adjacent to the battery cell 10 located at one end in the X direction and the battery cell 10 located at the other end in the X direction.
  • one end plate 92 is located on one end face of the battery block 10BB, and the other end plate 92 is located on the other end face of the battery block 10BB.
  • a laminated battery cell 10 is used.
  • the positive electrode and the negative electrode are stacked via a separator, and the stacked body is housed in a flexible container made of a resin film together with an electrolytic solution.
  • the flexible container is further accommodated in a flat, substantially rectangular parallelepiped casing.
  • the battery cell 10 in a state where the flexible container is exposed without being accommodated in the casing may be used.
  • Each battery cell 10 has a plus electrode 10a and a minus electrode 10b on its upper surface so as to be arranged in the Y direction.
  • the positive electrode 10 a is connected to the positive electrode of each battery cell 10, and the negative electrode 10 b is connected to the negative electrode of each battery cell 10.
  • the plus electrode 10a and the minus electrode 10b are made of copper, aluminum, or the like, and are provided in a plate shape so as to be bent.
  • the plus electrode 10 a and the minus electrode 10 b are provided so as to protrude upward from the upper surface of the battery cell 10.
  • a hole 10c is formed in each of the positive electrode 10a and the negative electrode 10b.
  • a gas vent valve 10v is provided at the center of the upper surface of each battery cell 10 between the plus electrode 10a and the minus electrode 10b.
  • one electrode 10a, 10b of a plurality of battery cells 10 constitutes a first terminal row TL1 (see FIG. 17) aligned in the X direction, and the other electrode of the plurality of battery cells 10 is arranged.
  • 10a and 10b constitute a second terminal row TL2 (see FIG. 17) aligned in the X direction.
  • the first terminal row TL1 and the second terminal row TL2 are arranged in parallel to each other with an interval therebetween.
  • Each spacer SP has a substantially rectangular plate-like portion 201.
  • the plate-like portion 201 has a cross-sectional shape bent in an uneven shape in the vertical direction.
  • a bottom surface portion 204 is provided at the lower end portion of the plate-like portion 201 so as to protrude to one side and the other surface side of the plate-like portion 201.
  • the bottom surface portion 204 extends along the lower side of the plate-like portion 201 and extends upward from the both ends of the lower side of the plate-like portion 201 along the both sides.
  • a pair of electrode support pieces 202 and a pair of protruding pieces 203 are provided at the upper end of the plate-like portion 201 so as to protrude to one surface side and the other surface side of the plate-like portion 201, respectively.
  • the pair of electrode support pieces 202 extend a certain length from both ends of the upper side of the plate-like portion 201 toward the center, and downward from both ends of the upper side of the plate-like portion 201 along both sides of the plate-like portion 201. Extend a certain length.
  • the pair of protruding pieces 203 are provided so as to be arranged along the upper side of the plate-like portion 201 between the pair of electrode support pieces 202.
  • One electrode support piece 202 is disposed between the electrodes 10a and 10b constituting the first terminal row TL1 (FIG. 17), and the other electrode support piece 202 constitutes the second terminal row TL2 (FIG. 17). Between the plurality of electrodes 10a and 10b. Each electrode support piece 202 is formed with a screw hole 202a.
  • Each end plate 92 has substantially the same shape as the spacer SP.
  • the end plate 92 is different from the spacer SP in the following points.
  • a duct support piece 205 is provided so as to protrude to one surface side of the plate-like portion 201 between the pair of electrode support pieces 202 and to extend along the upper side of the plate-like portion 201.
  • the pair of protruding pieces 203 are provided so as to protrude only on the other surface side of the plate-like portion 201.
  • a screw hole 208 is formed in the duct support piece 205.
  • the pair of electrode support pieces 202 of each end plate 92 are located on the extension line of the first terminal row TL1 (FIG. 17) and on the extension line of the second terminal row TL2 (FIG. 17), respectively.
  • the printed circuit board 21 is attached to the plate-like portion 201 of one end plate 92. Thereby, the printed circuit board 21 is held on one end surface of the battery block 10BB.
  • the plurality of battery cells 10 and the plurality of battery cells 10 are arranged such that one surface and the other surface parallel to the YZ plane of each battery cell 10 are in surface contact with the plate portion 201 of the spacer SP or the end plate 92.
  • the spacer SP and a pair of end plates 92 are disposed.
  • the pair of upper end frames 93 (FIG. 2) and the pair of lower end frames 94 (FIG. 2) are attached to the pair of end plates 92, whereby the plurality of battery cells 10, the plurality of spacers SP, and the pair of end plates. 92 is fixed integrally.
  • each spacer SP and the bottom surface portion 204 of each end plate 92 are arranged so as to overlap the bottom surface and both side surfaces (surfaces parallel to the XY plane) of each battery cell 10, and the electrodes of each spacer SP and each end plate 92 are arranged.
  • the support piece 202 and the protruding piece 203 are arranged so as to overlap the upper surface and both side surfaces of each battery cell 10. This prevents each battery cell 10 from being displaced in the Y direction and the Z direction.
  • the gas vent valve 10v of each battery cell 10 is exposed between the pair of protruding pieces 203 of the spacer SP or the end plate 92.
  • the plus electrode 10a of the battery cell 10 (hereinafter referred to as the one-end battery cell 10) located at one end overlaps the electrode support piece 202 of one end plate 92. It is bent into an L shape.
  • the negative electrode 10b of the battery cell 10 located at the other end (hereinafter referred to as the other end battery cell 10) is bent in an L shape so as to overlap the electrode support piece 202 of the other end plate 92. .
  • the other plurality of electrodes 10a and 10b are bent in an L shape so that the two adjacent electrodes 10a and 10b overlap each other on the electrode support piece 202 of the spacer SP positioned therebetween.
  • a pair of FPC boards 50 are respectively arranged inside the first and second terminal rows TL1, TL2 along the first and second terminal rows TL1, TL2 (FIG. 17). Is done.
  • One FPC board 50 is disposed between the first terminal row TL1 and the gas vent valves 10v of the plurality of battery cells 10, and the other FPC board 50 includes the second terminal row TL2 and the plurality of battery cells 10. Between the gas vent valve 10v.
  • the pair of FPC boards 50 are folded downward at the upper end portion of one end plate 92 and connected to the printed circuit board 21.
  • a plurality of plate-like connection members 206 are attached to each FPC board 50 so as to be arranged in the X direction at regular intervals. Each connection member 206 is connected to the conductor wire 51 (FIG. 4) of the FPC board 50. Each connecting member 206 is provided with a hole 206a.
  • the plurality of connection members 206 attached to one FPC board 50 are respectively attached on the plurality of electrode support pieces 202 positioned between the electrodes 10a and 10b constituting the first terminal row TL1 (FIG. 17).
  • the plurality of connection members 206 attached to the other FPC board 50 are on the plurality of electrode support pieces 202 and the second terminal row TL2 (FIG. 17) positioned between the electrodes 10a and 10b constituting the second terminal row TL2.
  • FIG. 18 is a cross-sectional view for explaining the attachment of the connection member 206.
  • the two adjacent electrodes 10 a and 10 b and the connecting member 206 are arranged on the electrode support piece 202 so as to overlap vertically.
  • the screw N3 is screwed into the screw hole 202a of the electrode support piece 202 through the hole 206a of the connection member 206 and the hole 10c of the electrodes 10a and 10b.
  • the connection member 206 and the electrodes 10a and 10b are fixed on the electrode support piece 202.
  • the adjacent electrodes 10a and 10b are electrically connected to each other, and the adjacent electrodes 10a and 10b are electrically connected to the printed circuit board 21 via the connection member 206 and the FPC board 50, respectively.
  • the positive electrode 10a of the one end side battery cell 10 and one end of the connection bus bar 505 are provided on the electrode support piece 202 of one end plate 92 positioned on the extension line of the second terminal row TL2, the positive electrode 10a of the one end side battery cell 10 and one end of the connection bus bar 505 are provided.
  • the connecting members 206 are arranged so as to overlap each other. Holes 505a are formed at both ends of the connecting bus bar 505, respectively.
  • the screw N3 is screwed into the screw hole 202a of the electrode support piece 202 through the hole 206a of the connecting member 206, the hole 505a of the connecting bus bar 505, and the hole 10c of the electrode 10a.
  • connection member 206, one end of the connection bus bar 505, and the electrode 10a of the one end battery cell 10 are fixed on the electrode support piece 202 of one end plate 92.
  • the connection bus bar 505 and the electrode 10a of the one end side battery cell 10 are electrically connected to each other, and the electrode 10a of the one end side battery cell 10 is connected to the printed circuit board 21 via the connecting member 206 and the FPC board 50. Electrically connected.
  • the other end of the connection bus bar 505 is connected to another battery module 100.
  • the negative electrode 10b of the other end side battery cell 10 one end portion of the connection bus bar 505, and the connection member 206 are provided. Are arranged to overlap each other.
  • the screw N3 is screwed into the screw hole 202a of the electrode support piece 202 through the hole 206a of the connecting member 206, the hole 505a of the connecting bus bar 505, and the hole 10c of the electrode 10b.
  • the connection member 206, one end of the connection bus bar 505, and the electrode 10 b of the other end side battery cell 10 are fixed on the electrode support piece 202 of the other end plate 92.
  • connection bus bar 505 and the electrode 10b of the other end side battery cell 10 are electrically connected to each other, and the electrode 10b of the other end side battery cell 10 is connected to the printed circuit board via the connection member 206 and the FPC board 50. 21 is electrically connected.
  • the other end of the connection bus bar 505 is connected to another battery module 100.
  • a screw hole 202a for screwing the screw N3 is formed in the electrode support piece 202, but a male screw may be provided so as to protrude upward from the electrode support piece 202 instead of the screw hole 202a.
  • the male screw is inserted into the hole 10c of the electrodes 10a and 10b and the hole 206a of the connecting member 206 on the electrode support piece 202 positioned between the adjacent electrodes 10a and 10b.
  • the nut is fitted into the male screw projecting upward and tightened. Accordingly, the connection member 206 and the electrodes 10a and 10b are fixed on the electrode support piece 202.
  • connection member 206 On the electrode support piece 202 of one end plate 92, the connection member 206, one end of the connection bus bar 505, and the electrode 10a of the one end battery cell 10 are fixed. Further, on the electrode support piece 202 of the other end plate 92, the connection member 206, one end of the connection bus bar 505, and the electrode 10b of the other end side battery cell 10 are fixed.
  • a gas duct GD is disposed between a pair of FPC boards 50.
  • the configuration of the gas duct GD is the same as the configuration shown in FIG. In this case, the through hole GDy of the protruding piece GDx overlaps with the screw hole 208 of the duct support piece 205 of one end plate 92 so that the openings GH (FIG. 6) overlap with the gas vent valves 10v of all the battery cells 10.
  • a gas duct GD is arranged.
  • the printed circuit board 21 and the gas duct GD are arranged on different surfaces of the battery block 10BB.
  • a pair of FPC boards 50 for connecting the printed circuit board 21 and the electrodes 10a, 10b of each battery cell 10 are arranged on the end plate 92 so as not to overlap the gas duct GD vertically. This facilitates wiring work and facilitates attachment and removal of the gas duct GD. Therefore, the battery module 100 can be easily assembled.
  • a pair of FPC boards 50 are respectively arranged inside the first and second terminal rows TL1, TL2 along the first and second terminal rows TL1, TL2, and the pair of FPCs.
  • a gas duct GD is disposed between the substrates 50.
  • the gas duct GD is disposed in the reverse direction, and the protruding piece GDx of the gas duct GD may be attached to the end plate 92 to which the printed circuit board 21 is not attached. .
  • each FPC board 50 is arranged so as not to overlap the gas duct GD vertically.
  • FIG. 19 is an exploded perspective view of the battery module according to the sixth embodiment.
  • battery block 10BB is arranged in casing (housing) CA.
  • the upper part of the casing CA is open.
  • the battery module 100 further includes a lid member 80.
  • the lid member 80 is made of an insulating material such as resin and has a rectangular plate shape.
  • the positive electrode 10a and the negative electrode 10b of each battery cell 10 are provided along the Z direction so as to protrude upward.
  • a bus bar 40x having a substantially L shape is attached to the positive electrode 10a of the first battery cell 10 and the negative electrode 10b of the 18th battery cell 10 instead of the bus bar 40a and the relay member 41 of FIGS. It is done.
  • An electrode connection hole 47x is formed at one end of the bus bar 40x.
  • a power line connection hole 47y is formed at the other end of the bus bar 40x.
  • the bus bar 40x has a configuration in which, for example, nickel plating is applied to the surface of tough pitch copper.
  • the bus bar 40x is connected to the FPC board 50 together with the plurality of bus bars 40.
  • a wiring member 70 a member in which the FPC board 50 and the plurality of bus bars 40, 40x are integrally connected.
  • the wiring member 70 and the gas duct GD are attached to the lower surface of the lid member 80. Thereby, the gas duct GD, the wiring member 70, and the cover member 80 can be handled integrally.
  • Battery block 10BB is housed in casing CA, and lid member 80 is fitted to casing CA so as to close the opening of casing CA. Thereby, battery box BB which accommodates battery block 10BB is formed.
  • FIG. 20 is a perspective view of the lid member 80 of FIG. 19 as viewed obliquely from below.
  • FIG. 21 is a perspective view of the lid member 80 of FIG. 19 as viewed obliquely from above.
  • one side and the other side of the lid member 80 along the X direction are referred to as a side side 80a and a side side 80b, respectively, and one side and the other side of the lid member 80 along the Y direction are referred to as one end side and the other end side.
  • the surface of the lid member 80 facing the battery block 10BB is called a back surface
  • the surface of the lid member 80 on the opposite side is called a front surface. In this example, the surface of the lid member 80 is directed upward.
  • a pair of FPC fitting portions 84 are formed on the back surface of the lid member 80 so as to extend along the side 80a and the side 80b of the lid member 80, respectively.
  • One end portion of each FPC fitting portion 84 extends to one end side of the lid member 80.
  • a pair of notches 84 ⁇ / b> S is formed on one end side of the lid member 80.
  • Each FPC board 50 of the wiring member 70 is fitted into each FPC fitting portion 84.
  • One end of each FPC board 50 is drawn out of the lid member 80 from the notch 84S and connected to the voltage detection circuit 20 held by the end plate 92, as in the first embodiment.
  • a plurality of recesses 81 are provided along one FPC fitting portion 84.
  • a plurality of recesses 81 are provided along the other FPC fitting portion 84, and a pair of recesses 82 are provided outside the plurality of recesses 81.
  • the pair of recesses 82 extends in an L shape toward one end side and the other end side of the lid member 80.
  • a pair of connection grooves 85 are formed so as to extend from each recess 81 to one or the other FPC fitting portion 84.
  • One connection groove 86 is formed so as to extend from each recess 82 to the other FPC fitting portion 84.
  • a plurality of openings 83 are formed so as to penetrate from the bottom surfaces of the plurality of recesses 81 and 82 to the surface of the lid member 80 (FIG. 19). Two openings 83 (FIG. 19) are formed in each recess 81, and one opening 83 (FIG. 19) is formed in each recess 82.
  • Each bus bar 40 is provided with a pair of attachment pieces 42, and each bus bar 40x is provided with one attachment piece 46.
  • a pair of attachment pieces 42 of each bus bar 40 and attachment pieces 46 of each bus bar 40 x are attached to the FPC board 50.
  • Each bus bar 40 is fitted in each recess 81 and each pair of connection grooves 85 of the lid member 80, and each bus bar 40 x is fitted in each recess 82 and each connection groove 86 of the lid member 80.
  • the pair of attachment pieces 42 of each bus bar 40 are respectively arranged in the pair of connection grooves 85, and the attachment pieces 46 of each bus bar 40 x are respectively arranged in the connection grooves 86.
  • the electrode connection hole 43 of the bus bar 40 is exposed to the surface side of the lid member 80 in the opening 83 in a state where the bus bar 40 is fitted in the recess 81 and the connection groove 85.
  • the electrode connection hole 47x of the bus bar 40x is exposed to the surface side of the lid member 80 in the opening 83 in a state where a part of the bus bar 40x is fitted in the recess 82 and the connection groove 86.
  • the FPC board 50 and the bus bars 40, 40x may be bonded or molded to the lid member 80 with an insulating adhesive.
  • a duct mounting portion 87 is formed inside the plurality of recesses 81 and 82 so as to extend in the X direction.
  • the gas duct GD is fitted in the duct fitting portion 87.
  • the lid member 80 is attached to the battery block 10BB.
  • the plus electrodes 10a (FIG. 19) and the minus electrodes 10b (FIG. 19) of the plurality of battery cells 10 are inserted into the electrode connection holes 43, 47x of the plurality of bus bars 40, 40x.
  • nuts (not shown) are fitted into the male threads of the plus electrode 10a and the minus electrode 10b and tightened. Thereby, the some battery cell 10 is connected in series.
  • the other end portion of each bus bar 40 x is disposed outside the lid member 80 so as to overlap the end plate 92.
  • a power line 501 (FIG. 7) is connected to the other end of each bus bar 40x.
  • the gas duct GD is disposed on the upper surface of the battery block 10BB so as to cover the gas vent valves 10v of the plurality of battery cells 10.
  • the protruding piece GDx (FIG. 19) of the gas duct GD is disposed outside the lid member so as to overlap the end plate 92.
  • the screw N2 (FIG. 4) is screwed into the screw hole 99c of the end plate 92 through the through hole GDy (FIG. 19) of the protruding piece GDx, whereby the gas duct GD is inserted into the battery block 10BB. Fixed.
  • the battery block 10BB is fixed in the casing CA, and the lid member 80 is fitted into the casing CA so as to close the opening of the casing CA.
  • the lid member 80 may be screwed to the casing CA, or may be bonded to the casing CA with an adhesive.
  • the wiring member 70 and the gas duct GD are integrally provided on the lid member 80, so that the gas duct GD, the wiring member 70, and the lid member 80 can be handled integrally. Therefore, the battery module 100 can be easily assembled by attaching the lid member 80 integrally provided with the gas duct GD and the wiring member 70 to the battery block 10BB. Further, the wiring work between each battery cell 10 and the printed circuit board 21 is facilitated.
  • the wiring member 70 and the gas duct GD are fixed to the lid member, the positioning of the wiring member 70 and the gas duct GD with respect to the battery block 10BB is facilitated. This facilitates positioning and screwing of the bus bars 40, 40x with respect to the electrodes 10a, 10b of the battery cell 10. Further, the pair of FPC boards 50 can be easily positioned on the end plate 92 so as not to overlap the gas duct GD. Therefore, the assembly of the battery module 100 is further facilitated.
  • a bus bar 40x having a substantially L shape is used instead of the bus bar 40a and the relay member 41 of the first embodiment. Thereby, the number of parts is reduced, and the battery module 100 can be assembled more easily. Note that the bus bar 40a and the relay member 41 may be used instead of the bus bar 40x.
  • the strength of the battery module 100 is improved by forming the battery box BB that houses the battery block 10BB. Further, since the battery block 10BB of the battery module 100 is fixed to the casing CA of the battery box BB and the lid member 80 is fitted to the casing CA, the battery block 10BB and the lid member 80 can be reliably fixed. it can.
  • the battery block 10BB is shielded from the outside by the casing CA and the lid member 80, it is possible to prevent an external physical load from being applied to the battery block 10BB. Thereby, deformation and breakage of the battery block 10BB are prevented.
  • the inside of the battery box BB may be molded with resin. In this case, condensation of the battery cell 10 can be prevented. Further, the resin molded in the battery box BB can affect the heat conduction characteristics of the battery module 100. For example, by molding the inside of the battery box BB with a resin having a higher thermal conductivity than air, the heat in the battery box BB can be released to the outside. On the other hand, by molding the inside of the battery box BB with a resin having a thermal conductivity lower than that of air, the inflow of heat from the outside into the battery box BB can be blocked.
  • the upper surface of the end plate 92 is exposed without being covered by the lid member 80.
  • the lid member 80 is formed so as to cover the entire upper surface of the battery block 10BB including the upper surface of the end plate 92. Good. In this case, the airtightness in the casing CA is improved, and dust and the like are prevented from entering the casing CA.
  • the lid member 80 is used to close the upper opening of the casing CA.
  • the lid member 80 does not necessarily close the upper opening of the casing CA.
  • the lid member 80 may be attached on the upper surface of the battery block 10BB without using the casing CA.
  • a plurality of battery modules 100 may be arranged in one casing CA.
  • one lid member 80 may be mounted on the upper surface of the plurality of battery blocks 10BB so as to close the upper opening of one casing CA, or the plurality of lid members 80 may be a plurality of batteries. Each may be mounted on the upper surface of the block 10BB.
  • the wiring member 70 is attached to the back surface (lower surface) of the lid member 80, but the wiring member 70 may be attached to the surface (upper surface) of the lid member 80.
  • the wiring member 70 may be attached to the upper surface of the lid member 80 with an insulating adhesive, may be fitted into a recess formed on the upper surface of the lid member 80, or may be fitted into the recess. In such a state, it may be bonded or molded with an insulating adhesive.
  • the lid member 80 and the gas duct GD are used as separate members, but the gas discharged from the vent valve 10v of each battery cell 10 to the lid member 80 without using the gas duct GD.
  • a flow path may be formed.
  • the wiring member 70 and the gas duct GD are attached to the battery block 10BB in a state where the wiring member 70 and the gas duct GD are fixed to the lid member 80.
  • the invention is not limited thereto, and at least one of the wiring member 70 and the gas duct GD is the lid member 80. It may not be fixed to.
  • the lid member 80 is simply used to close the opening of the casing CA, and the wiring member 70 and the gas duct GD are not fixed to the lid member 80.
  • the lid member 80 may be provided on the battery block 10BB as in the above example. Also in this case, the battery module 100 can be easily assembled by fixing the bus bar 40 (the bus bars 40p, 40q or the connecting member 206), the FPC board 50 (the wiring 53), and the gas duct GD to the lid member 80. .
  • FIG. 22 is a schematic plan view showing the configuration of the battery system.
  • the battery system 500 includes battery modules 100a, 100b, 100c, and 100d, a battery ECU 101, a contactor 102, an HV (High Voltage) connector 520, and a service plug 530.
  • the battery modules 100a and 100c have the same configuration as the battery module 100 according to the first embodiment
  • the battery modules 100b and 100d have the same configuration as the battery module 100 according to the second embodiment.
  • the gas ducts GD of the battery modules 100a to 100d are integrally provided.
  • gas ducts GD of the battery modules 100a to 100d are referred to as gas ducts GDa to GDd, respectively.
  • the end plate 92 to which the printed circuit board 21 is attached is called an end plate 92A
  • the end plate 92 to which the printed circuit board 21 is not attached is called the end plate 92B. Call it.
  • the battery modules 100a to 100d, the battery ECU 101, the contactor 102, the HV connector 520, and the service plug 530 are accommodated in a box-shaped casing 550.
  • Casing 550 has side portions 550a, 550b, 550c, and 550d.
  • the side surface portions 550a and 550c are parallel to each other, and the side surface portions 550b and 550d are parallel to each other and perpendicular to the side surface portions 550a and 550c.
  • the battery modules 100a and 100b are arranged in a line.
  • the battery modules 100a and 100b are arranged so that the end plate 92B of the battery module 100a and the end plate 92A of the battery module 100b face each other with a space therebetween.
  • Battery modules 100c and 100d are arranged in a line.
  • the battery modules 100c and 100d are arranged so that the end plate 92A of the battery module 100c and the end plate 92B of the battery module 100d face each other with a space therebetween.
  • the battery modules 100a and 100b arranged in a row are referred to as a module row T1
  • the battery modules 100c and 100d arranged in a row are referred to as a module row T2.
  • the module row T1 is arranged along the side surface portion 550a, and the module row T2 is arranged in parallel with the module row T1.
  • the end plate 92A of the battery module 100a is directed to the side surface portion 550d
  • the end plate 92B of the battery module 100b is directed to the side surface portion 550b.
  • the end plate 92B of the battery module 100c is directed to the side surface portion 550d
  • the end plate 92A of the battery module 100d is directed to the side surface portion 550b.
  • the gas ducts GDa to GDd on the battery modules 100a to 100d are connected to the gas duct GDp.
  • the gas duct GDp extends so as to be orthogonal to the gas ducts GDa to GDd.
  • One end of the gas duct GDc and one end of the gas duct GDd are connected to one end of the gas duct GDp.
  • the other end of the gas duct GDp extends outside the casing 550.
  • the gas duct GDp has a hollow structure, and the internal spaces of the gas ducts GDa to GDd communicate with the internal space of the gas duct GDp. Unlike the gas ducts GDa to GDd, the gas duct GDp is not provided with the opening GH. Gas discharged from each battery cell 10 of the battery modules 100a to 100d is guided to the outside of the casing 550 through the inside of the gas ducts GDa to GDd and GDp, and is discharged to the outside of the electric vehicle.
  • the distance between the end plate 92B of the battery module 100a and the end plate 92A of the battery module 100b and the distance between the end plate 92A of the battery module 100c and the end plate 92B of the battery module 100d are larger than the width of the gas duct GDp. large.
  • the gas duct GDp extends on the space between the end plate 92B of the battery module 100a and the end plate 92A of the battery module 100b and on the space between the end plate 92A of the battery module 100c and the end plate 92B of the battery module 100d. . Therefore, the gas duct GDp does not contact the end plates 92A of the battery modules 100b and 100c that are directed inward. This prevents the gas duct GDp from interfering with the wiring work between the printed circuit board 21 and the electrodes 10a, 10b of each battery cell 10.
  • the battery ECU 101, the service plug 530, the HV connector 520, and the contactor 102 are arranged in this order from the side surface portion 550d to the side surface portion 550b.
  • the potential of the positive electrode 10a (FIG. 2) of the battery cell 10 adjacent to the end plate 92A is the highest
  • the negative electrode 10b (FIG. 2) of the battery cell 10 adjacent to the end plate 92B The potential is the lowest.
  • the positive electrode 10a having the highest potential in each of the battery modules 100a to 100d is referred to as a high potential electrode 10A
  • the negative electrode 10b having the lowest potential in each of the battery modules 100a to 100d is referred to as a low potential electrode 10B.
  • the relay member 41 is connected to the high potential electrode 10A and the low potential electrode 10B.
  • the relay member 41 connected to the low potential electrode 10B of the battery module 100a and the relay member 41 connected to the high potential electrode 10A of the battery module 100b are connected to each other via the power supply line D01.
  • the relay member 41 connected to the high potential electrode 10A of the battery module 100c and the relay member 41 connected to the low potential electrode 10B of the battery module 100d are connected to each other via the power supply line D02.
  • Power supply lines D01 and D02 and power supply lines D1 to D4 described later correspond to the power supply line 501 in FIG.
  • harnesses or lead wires are used as the power supply lines D01, D02, D1 to D4, harnesses or lead wires are used.
  • the relay member 41 connected to the high potential electrode 10A of the battery module 100a is connected to the service plug 530 via the power supply line D1, and the relay member 41 connected to the low potential electrode 10B of the battery module 100c is connected to the power supply line D2. To the service plug 530.
  • the battery modules 100a, 100b, 100c, and 100d are connected in series.
  • the potential of the high potential electrode 10A of the battery module 100d is the highest, and the potential of the low potential electrode 10B of the battery module 100b is the lowest.
  • the service plug 530 is turned off by an operator when the battery system 500 is maintained, for example.
  • the service plug 530 is turned off, the series circuit composed of the battery modules 100a and 100b and the series circuit composed of the battery modules 100c and 100d are electrically separated. In this case, the current path between the plurality of battery modules 100a to 100d is interrupted. This ensures safety during maintenance.
  • the relay member 41 connected to the low potential electrode 10B of the battery module 100b is connected to the contactor 102 through the power line D3, and the relay member 41 connected to the high potential electrode 10A of the battery module 100d is connected through the power line D4.
  • Contactor 102 is connected to HV connector 520 through power supply lines D5 and D6.
  • the HV connector 520 is connected to a load such as a motor of an electric vehicle.
  • the battery module 100b is connected to the HV connector 520 via the power lines D3 and D5
  • the battery module 100d is connected to the HV connector 520 via the power lines D4 and D6.
  • electric power is supplied from the battery modules 100a, 100b, 100c, and 100d to the load.
  • the battery modules 100a, 100b, 100c, and 100d are charged with the contactor 102 turned on.
  • the contactor 102 When the contactor 102 is turned off, the connection between the battery module 100b and the HV connector 520 and the connection between the battery module 100d and the HV connector 520 are cut off.
  • the contactor 102 is also turned off by the operator together with the service plug 530. In this case, the current path between the plurality of battery modules 100a to 100d is reliably interrupted. Thereby, safety at the time of maintenance is sufficiently ensured.
  • the total voltage of the series circuit including the battery modules 100a and 100b is equal to the total voltage of the series circuit including the battery modules 100c and 100d. . This prevents a high voltage from being generated in the battery system 500 during maintenance.
  • the printed circuit board 21 (see FIG. 1 and the like) of the battery module 100a and the printed circuit board 21 of the battery module 100b are connected to each other via a communication line P11.
  • the printed circuit board 21 of the battery module 100a and the printed circuit board 21 of the battery module 100c are connected to each other via the communication line P12.
  • the printed circuit board 21 of the battery module 100c and the printed circuit board 21 of the battery module 100d are connected to each other via a communication line P13.
  • the printed circuit board 21 of the battery module 100d is connected to the battery ECU 101 via the communication line P14.
  • a bus is configured by the communication lines P11 to P14. For example, harnesses are used as the communication lines P11 to P14.
  • Each communication circuit 24 provides information (terminal voltage, current, temperature, etc.) regarding the corresponding battery cell 10 to the other communication circuit 24 or the battery ECU 101, for example.
  • information regarding the battery cell 10 is referred to as cell information.
  • the battery ECU 101 calculates, for example, the charge amount of each battery cell 10 of the battery modules 100a to 100d based on the cell information given from the communication circuit 24 of the battery modules 100a to 100d, and the battery module 100a based on the charge amount. Charge / discharge control of ⁇ 100d is performed. Further, the battery ECU 101 detects an abnormality of the battery modules 100a to 100d based on the cell information given from the communication circuit 24 of the battery modules 100a to 100d. The abnormality of the battery modules 100a to 100d is, for example, overdischarge, overcharge or temperature abnormality of the battery cell 10.
  • the battery ECU 101 calculates the charge amount of each battery cell 10 and detects overdischarge, overcharge, temperature abnormality, etc. of each battery cell 10, but is not limited to this.
  • the communication circuit 24 of the battery modules 100a to 100d may calculate the charge amount of each battery cell 10 and detect overdischarge, overcharge, temperature abnormality, etc. of the battery cell 10, and give the result to the battery ECU 101.
  • the battery system 500 includes the battery modules 100a to 100d according to the first and second embodiments. This facilitates wiring work between the printed circuit board 21 and the electrodes 10a and 10b of each battery cell 10, and facilitates attachment and removal of the gas duct GD. Therefore, the battery modules 100a to 100d can be easily assembled, and the battery system 500 can be easily assembled.
  • the gas ducts GDa to GDd of the battery modules 100a to 100d are integrally provided by being connected to the gas duct GDp, respectively. Thereby, the configuration is simplified and the assembly of the battery system 500 becomes easier. Further, when gas is discharged through the gas vent valve 10v of any battery cell 10 of the battery modules 100a to 100d, the gas can be efficiently guided to the outside of the casing 550 through the gas ducts GDa to GDd and GDp.
  • the battery module 100 according to the third to sixth embodiments is used instead of the battery module 100 according to the first or second embodiment. May be used. Moreover, you may change the number of battery modules suitably.
  • the battery system according to the present embodiment includes the plurality of battery modules described above.
  • the voltage detection circuit and the gas duct are provided on different surfaces of the battery block, and the plurality of wirings do not overlap the gas duct on the holding member. Thereby, wiring work becomes easy, and attachment and removal of a gas duct become easy. Therefore, the battery system can be easily assembled.
  • the battery system may further include a casing that accommodates a plurality of battery modules, and the gas ducts of the plurality of battery modules may be provided so as to be connected to each other and to guide the gas to the outside of the casing.
  • the configuration is simplified, and when the gas is discharged through any of the gas vent valves of the plurality of battery cells, the gas can be efficiently guided to the outside of the casing.
  • FIG. 23 is an external perspective view of a first modification of the gas ducts GDa to GDd, GDp, and FIG. 24 is provided with the gas ducts GDa to GDd, GDp of FIG. 2 is a schematic plan view showing a part of a battery system 500 obtained.
  • FIG. 23 shows the lower surface side of the gas ducts GDa to GDd, GDp.
  • recesses B1 to B3 are provided on the lower surface of the gas duct GDp.
  • the recess B1 is provided with a certain length along one side surface of the gas duct GDp from the connecting portion of the gas duct GDc.
  • the recesses B2 and B3 are provided at a certain length along the other side surface of the gas duct GDp on both sides from the connecting portion of the gas duct GDb.
  • the interval W1 between the end plate 92B of the battery module 100a and the end plate 92A of the battery module 100b and the interval W2 between the end plate 92A of the battery module 100c and the end plate 92B of the battery module 100d are determined by the gas duct GDp. Each is smaller than the width W3.
  • the recess B1 is located on the end plate 92A of the battery module 100c, and the recesses B2 and B3 are located on the end plate 92A of the battery module 100b.
  • a pair of FPC boards 50 are positioned on each end plate 92A.
  • concave portions B1 to B3 are provided on the lower surface of the gas duct GDp so as to correspond to the end plates 92A of the battery modules 100b and 100c facing inward.
  • FIG. 25 is an external perspective view of a second modified example of the gas ducts GDa to GDd and GDp
  • FIG. 26 is attached to the gas ducts GDa to GDd and GDp of FIG. 2 is an external perspective view of battery modules 100a to 100d obtained.
  • FIG. 25 is an external perspective view of a second modified example of the gas ducts GDa to GDd and GDp
  • FIG. 26 is attached to the gas ducts GDa to GDd and GDp of FIG. 2 is an external perspective view of battery modules 100a to 100d obtained.
  • one end of the gas duct GDa and one end of the gas duct GDb are connected to each other, and one end of the gas duct GDc and one end of the gas duct GDd are connected to each other.
  • the gas duct GDp is connected to the upper part of the connecting part of the gas ducts GDa and GDb and the connecting part of the gas ducts GDc and GDd.
  • FIG. 27 is a schematic plan view showing a third modification of the gas ducts GDa to GDd, GDp.
  • the power supply lines D01, D02, D1 to D4 and the communication lines P11 to P14 are not shown.
  • the gas ducts GDa and GDc extend from the gas duct GDp to the side surface portion 550d, and the protruding pieces GDx of the gas ducts GDa and GDc are attached to the gas duct attachment portion TD provided on the side surface portion 550d.
  • the gas ducts GDb and GDd extend from the gas duct GDp to the side surface portion 550b, and the protruding pieces GDx of the gas ducts GDb and GDd are attached to the gas duct attachment portion TD provided on the side surface portion 550b.
  • the FPC boards 50 are arranged on the end plates 92A of the battery modules 100a to 100d so as not to vertically overlap the gas ducts GDa to GDd. This facilitates wiring work between the printed circuit board 21 and the electrodes 10a and 10b of each battery cell 10, and facilitates attachment and removal of the gas duct GD.
  • the electric vehicle which concerns on the 8th Embodiment of this invention is demonstrated.
  • the electric vehicle according to the present invention includes the battery system 500 according to the seventh embodiment.
  • an electric vehicle will be described as an example of an electric vehicle.
  • FIG. 28 is a block diagram illustrating a configuration of an electric automobile including the battery system 500.
  • electric vehicle 600 according to the present embodiment includes a vehicle body 610.
  • the vehicle body 610 is provided with the battery system 500, the power conversion unit 601, the motor 602, the drive wheels 603, the accelerator device 604, the brake device 605, and the rotation speed sensor 606 of FIG.
  • power conversion unit 601 includes an inverter circuit.
  • the battery system 500 is connected to the motor 602 via the power conversion unit 601 and to the main control unit 300.
  • the main control unit 300 is given a charge amount of the battery modules 100a to 100d (FIG. 22) and a current value flowing through the battery modules 100a to 100d from the battery ECU 101 (FIG. 22) constituting the battery system 500.
  • an accelerator device 604, a brake device 605, and a rotation speed sensor 606 are connected to the main control unit 300.
  • the main control unit 300 includes, for example, a CPU and a memory, or a microcomputer.
  • the accelerator device 604 includes an accelerator pedal 604a included in the electric automobile 600 and an accelerator detection unit 604b that detects an operation amount (depression amount) of the accelerator pedal 604a.
  • the accelerator detector 604b detects the operation amount of the accelerator pedal 604a based on a state where the driver is not operated. The detected operation amount of the accelerator pedal 604a is given to the main controller 300.
  • the brake device 605 includes a brake pedal 605a included in the electric automobile 600 and a brake detection unit 605b that detects an operation amount (depression amount) of the brake pedal 605a by the driver.
  • the operation amount is detected by the brake detection unit 605b.
  • the detected operation amount of the brake pedal 605a is given to the main control unit 300.
  • the rotation speed sensor 606 detects the rotation speed of the motor 602. The detected rotation speed is given to the main control unit 300.
  • the main control unit 300 is given the charge amount of the battery modules 100a to 100d, the current value flowing through the battery modules 100a to 100d, the operation amount of the accelerator pedal 604a, the operation amount of the brake pedal 605a, and the rotation speed of the motor 602.
  • the main control unit 300 performs charge / discharge control of the battery modules 100a to 100d and power conversion control of the power conversion unit 601 based on these pieces of information. For example, when the electric vehicle 600 is started and accelerated based on the accelerator operation, the power of the battery modules 100a to 100d is supplied from the battery system 500 to the power conversion unit 601.
  • the main control unit 300 calculates a rotational force (command torque) to be transmitted to the drive wheels 603 based on the given operation amount of the accelerator pedal 604a, and outputs a control signal based on the command torque to the power conversion unit 601. To give.
  • the power conversion unit 601 that has received the control signal converts the power supplied from the battery system 500 into power (drive power) necessary for driving the drive wheels 603. As a result, the driving power converted by the power converter 601 is supplied to the motor 602, and the rotational force of the motor 602 based on the driving power is transmitted to the driving wheels 603.
  • the motor 602 functions as a power generator.
  • the power conversion unit 601 converts the regenerative power generated by the motor 602 into power suitable for charging the battery modules 100a to 100d and supplies the power to the battery modules 100a to 100d. Thereby, the battery modules 100a to 100d are charged.
  • the electric automobile 600 according to the present embodiment includes the battery system 500 according to the seventh embodiment.
  • the battery system 500 is provided with the battery module 100 according to any one of the first to sixth embodiments.
  • the battery module 100 can be easily assembled and the battery system 500 can be easily assembled.
  • the manufacturing efficiency of the electric automobile 600 is improved.
  • maintenance of the electric vehicle 600 is facilitated.
  • the electric vehicle according to the present embodiment includes the battery system described above, a motor driven by electric power from the battery system, and drive wheels that rotate by the rotational force of the motor.
  • the motor is driven by the electric power from the battery system.
  • the electric vehicle moves when the driving wheel rotates by the rotational force of the motor.
  • the battery system since the battery system is used, the battery system can be easily assembled. As a result, the manufacturing efficiency of the electric vehicle is improved.
  • the battery system 500 according to the seventh embodiment may be mounted on another mobile body such as a ship, an aircraft, an elevator, or a walking robot.
  • the battery system 500 according to the seventh embodiment is provided.
  • the battery system 500 is provided with the battery module 100 according to any one of the first to sixth embodiments.
  • the battery module 100 can be easily assembled and the battery system 500 can be easily assembled.
  • the manufacturing efficiency of the moving body is improved.
  • maintenance of the moving body is facilitated.
  • the moving body includes the battery system, the moving main body, a power source that converts electric power from the battery system into power, and a drive that moves the moving main body by the power converted by the power source. A part.
  • the electric power from the battery system is converted into power by the power source, and the driving unit moves the moving main body by the power.
  • the battery system since the battery system is used, the battery system can be easily assembled. As a result, the manufacturing efficiency of the moving body is improved.
  • the power supply device includes the battery system 500 according to the seventh embodiment.
  • FIG. 29 is a block diagram illustrating a configuration of a power supply device including the battery system 500.
  • the power supply device 700 includes a power storage device 710 and a power conversion device 720.
  • the power storage device 710 includes a battery system group 711 and a system controller 712.
  • the battery system group 711 includes the battery system 500 according to the seventh embodiment.
  • the plurality of battery systems 500 may be connected to each other in parallel, or may be connected to each other in series.
  • the plurality of battery systems 500 may be connected by a combination of series and parallel.
  • a subsystem group including a plurality of battery systems 500 connected in series may be connected in parallel to each other.
  • the system controller 712 is an example of a system control unit, and includes, for example, a CPU and a memory, or a microcomputer.
  • the system controller 712 is connected to the battery ECU 101 (see FIG. 22) of each battery system 500.
  • the battery ECU 101 of each battery system 500 calculates the charge amount of each battery cell 10 based on the terminal voltage of each battery cell 10, and gives the calculated charge amount to the system controller 712.
  • the system controller 712 controls the power conversion device 720 based on the charge amount of each battery cell 10 given from each battery ECU 101, thereby controlling the discharge or charging of the plurality of battery cells 10 included in each battery system 500. I do.
  • the power converter 720 includes a DC / DC (DC / DC) converter 721 and a DC / AC (DC / AC) inverter 722.
  • the DC / DC converter 721 has input / output terminals 721a and 721b, and the DC / AC inverter 722 has input / output terminals 722a and 722b.
  • the input / output terminal 721 a of the DC / DC converter 721 is connected to the battery system group 711 of the power storage device 710.
  • the input / output terminal 721b of the DC / DC converter 721 and the input / output terminal 722a of the DC / AC inverter 722 are connected to each other and to the power output unit PU1.
  • the input / output terminal 722b of the DC / AC inverter 722 is connected to the power output unit PU2 and to another power system.
  • the power output units PU1, PU2 include, for example, outlets.
  • various loads are connected to the power output units PU1 and PU2.
  • Other power systems include, for example, commercial power sources or solar cells. This is an external example in which power output units PU1, PU2 and another power system are connected to a power supply device.
  • the DC / DC converter 721 and the DC / AC inverter 722 are controlled by the system controller 712, whereby the plurality of battery cells 10 included in the battery system group 711 are discharged and charged.
  • DC / DC direct current / direct current
  • DC / AC direct current / alternating current
  • the power DC / DC converted by the DC / DC converter 721 is supplied to the power output unit PU1.
  • the power DC / AC converted by the DC / AC inverter 722 is supplied to the power output unit PU2.
  • DC power is output to the outside from the power output unit PU1, and AC power is output to the outside from the power output unit PU2.
  • the electric power converted into alternating current by the DC / AC inverter 722 may be supplied to another electric power system.
  • the system controller 712 performs the following control as an example of control related to the discharge of the plurality of battery cells 10 included in each battery system 500.
  • the system controller 712 determines whether or not to stop discharging based on the charge amount of each battery cell 10 given from each battery ECU 101 (see FIG. 22), and based on the determination result.
  • the power converter 720 is controlled. Specifically, when the charge amount of any one of the plurality of battery cells 10 included in the battery system group 711 becomes smaller than a predetermined threshold value, the system controller 712 stops discharging. Or the DC / DC converter 721 and the DC / AC inverter 722 are controlled so that the discharge current (or discharge power) is limited. Thereby, overdischarge of each battery cell 10 is prevented.
  • AC power supplied from another power system is AC / DC (AC / DC) converted by the DC / AC inverter 722, and further DC / DC (DC) is converted by the DC / DC converter 721. / DC) converted.
  • AC / DC AC / DC
  • DC DC / DC
  • the system controller 712 performs the following control as an example of control related to charging of the plurality of battery cells 10 included in each battery system 500.
  • the system controller 712 determines whether or not to stop charging based on the charge amount of each battery cell 10 given from each battery ECU 101 (see FIG. 22), and based on the determination result.
  • the power converter 720 is controlled. Specifically, when the charge amount of any one of the plurality of battery cells 10 included in the battery system group 711 exceeds a predetermined threshold value, the system controller 712 stops charging. Or the DC / DC converter 721 and the DC / AC inverter 722 are controlled such that the charging current (or charging power) is limited. Thereby, overcharge of each battery cell 10 is prevented.
  • the power supply apparatus 700 according to the present embodiment is provided with the battery system 500 according to the seventh embodiment.
  • the battery system 500 is provided with the battery module 100 according to any one of the first to sixth embodiments. Thereby, the assembly work of the power supply apparatus 700 becomes easy, and the manufacturing cost can be sufficiently reduced. In addition, maintenance of the power supply device 700 is facilitated.
  • the power storage device includes the above-described battery system and a control unit that performs control related to discharging or charging of a plurality of battery cells of the battery system.
  • control related to charging or discharging of a plurality of battery cells is performed by the control unit. Thereby, deterioration, overdischarge, and overcharge of a plurality of battery cells can be prevented. Further, since the battery system is used, the battery system can be easily assembled. Therefore, the manufacturing efficiency of the power storage device is improved.
  • the power supply device is a power supply device that can be connected to the outside, and is controlled by the power storage device and the control unit of the power storage device. And a power conversion device that performs power conversion between them.
  • power conversion is performed by the power conversion device between the plurality of battery cells and the outside.
  • Control regarding charge or discharge of a plurality of battery cells is performed by controlling the power conversion device by the control unit of the power storage device.
  • deterioration, overdischarge, and overcharge of a plurality of battery cells can be prevented.
  • the battery system since the battery system is used, the battery system can be easily assembled. Therefore, the manufacturing efficiency of the power supply device is reduced.
  • the system controller 712 may have the same function as the battery ECU 101 instead of the battery ECU 101 provided in each battery system 500.
  • the power conversion device 720 may include only one of the DC / DC converter 721 and the DC / AC inverter 722. Further, the power conversion device 720 may not be provided as long as power can be supplied between the power supply device 700 and the outside.
  • a plurality of battery systems 500 are provided, but not limited to this, only one battery system 500 may be provided.
  • one end of the gas duct GD is attached to the end plate 92.
  • the present invention is not limited to this, and the gas duct GD is connected to each end plate 92 as in the example of FIG. It may be provided to pass over.
  • the FPC board 50 or the wiring 53 is arranged so as not to overlap the gas duct GD passing over the end plate 92.
  • the notch 92g for guiding the FPC board 50 to the end plate 92 or the guide hook g for guiding the wiring 53 is provided.
  • the FPC board 50 or the wiring 53 can be arranged on the end plate 92 so as not to overlap the gas duct GD, the notch 92g or the guide hook g may not be provided.
  • the FPC board 50 or the wiring 53 is arranged on the battery block 10BB so as not to overlap the gas duct GD, but the battery module 100 can be easily assembled. If possible, at least a part of the FPC board 50 or the wiring 53 may overlap the gas duct GD on the battery block 10BB.
  • the FPC board 50 or the wiring 53 and the gas duct GD are arranged on the common surface of the battery block 10BB.
  • 50 or wiring 53 and gas duct GD may be arranged on different surfaces of battery block 10BB.
  • the FPC board 50 or the wiring 53 may be arranged on the end plate 92 so as to be separated from the gas duct GD. It may be arranged so as to be adjacent to.
  • the gas ducts GDa to GDd of the battery modules 100a to 100d are integrally provided.
  • the present invention is not limited to this, and the gas ducts GDa to GDd of the battery modules 100a to 100d are mutually connected. It may be a separate body.
  • the relay member 41 has a configuration in which nickel plating is applied to the surface of tough pitch copper, but the relay member 41 may be configured by a harness, a lead wire, or the like. Also in this case, it is preferable that the relay member 41 is disposed so as not to overlap the FPC board 50 or the plurality of wirings 53 and to overlap the gas duct GD.
  • the relay member 41 When the relay member 41 is configured by a harness, a lead wire, or the like, the upper surface, one side surface, or the other side surface of the battery block 10BB so that the relay member 41 does not overlap the FPC board 50 or the plurality of wirings 53 and the gas duct GD.
  • a guide hook g (FIG. 13) for fixing the relay member 41 may be provided.
  • the power line 501 instead of connecting the power line 501 to the electrodes 10a and 10b of the battery cell 10 via the relay member 41, the power line 501 may be directly connected to the electrodes 10a and 10b.
  • the battery cell 10 having a flat and substantially rectangular parallelepiped shape is used.
  • the present invention is not limited to this, and other shapes such as battery cells having a cylindrical shape or other configurations are used.
  • the battery cell may be used.
  • the movable body such as the electric automobile 600 or the ship according to the eighth embodiment is an electric device including the battery system 500 and the motor 602 as a load.
  • the electric device according to the present invention is not limited to a moving body such as the electric automobile 600 and a ship, and may be a washing machine, a refrigerator, an air conditioner, or the like.
  • a washing machine is an electric device including a motor as a load
  • a refrigerator or an air conditioner is an electric device including a compressor as a load.
  • the electric device according to the present invention may be a television receiver, a communication device, a lighting device, or the like having a battery system 500 as an emergency power source.
  • the electrical apparatus includes the battery system and a load driven by electric power from the battery system.
  • the load is driven by electric power from the battery system.
  • the battery system Since the battery system is used for this electrical device, the battery system can be easily assembled. Therefore, the manufacturing efficiency of the electric equipment is reduced.
  • the battery module 100 is an example of a battery module
  • the plurality of battery cells 10 is an example of a plurality of battery cells
  • the gas vent valve 10v is an example of a gas vent valve
  • the battery block 10BB is It is an example of a battery block
  • the upper surface of battery block 10BB is an example of the 1st surface of a battery block
  • the one end surface of battery block 10BB is an example of the 2nd surface of a battery block.
  • the voltage detection circuit 20 is an example of a voltage detection circuit
  • the end plate 92 is an example of a holding member
  • the plus electrodes 10a and the minus electrodes 10b of the plurality of battery cells 10 are examples of a plurality of electrode terminals
  • a gas duct is an example of a gas duct.
  • the plurality of conductor lines 51 and 52 formed on the two FPC boards 50 in the first to third embodiments and the plurality of wirings 53 in the fourth embodiment are examples of a plurality of wirings.
  • the FPC board 50 is an example of a flexible printed circuit board
  • a plurality of wirings 53 are examples of a plurality of conductor wires covered with an insulating material.
  • the two notches 92g in the first and second embodiments and the two guide hooks g formed on the end plate 92 in the fourth embodiment are examples of guide portions, and screw holes 99c and 208 are provided.
  • the X direction is an example of one direction
  • the first terminal row TL1 is an example of the first terminal row
  • the second terminal row TL2 is an example of the second terminal row.
  • the plurality of conductor lines 51 and 52 formed on one FPC board 50 in the first to third embodiments and the first wiring group 53x in the fourth embodiment are the first wiring group.
  • the plurality of conductor lines 51 and 52 formed on the other FPC board 50 in the first to third embodiments and the second wiring group 53y in the fourth embodiment are the second wiring group. It is an example.
  • the battery system 500 is an example of a battery system
  • the casing 550 is an example of a casing
  • the electric automobile 600 is an example of an electric vehicle
  • the vehicle body 610 is an example of a moving main body
  • the motor 602 is a motor and power.
  • This is an example of the source
  • the driving wheel 603 is an example of the driving wheel and the driving unit.
  • the power storage device 710 is an example of a power storage device
  • the system controller 712 is an example of a control unit
  • the power supply device 700 is an example of a power supply device
  • the power conversion device 720 is an example of a power conversion device.
  • the motor 602 or the compressor is an example of a load
  • the electric automobile 600, a ship, an aircraft, an elevator, a walking robot, a washing machine, a refrigerator, an air conditioner, a television receiver, a communication device, and a lighting device are examples of electric devices. It is.

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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)
  • Microelectronics & Electronic Packaging (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

L'invention concerne un bloc de batterie constitué d'une pluralité de cellules de batterie, munie chacune d'une soupape de dégazage. La soupape de dégazage de chaque cellule de batterie est disposée dans la surface supérieure du bloc de batterie. Un circuit imprimé est maintenu sur une surface d'extrémité du bloc de batterie par une plaque d'extrémité. Un circuit de détection de tension est monté sur le circuit imprimé. Une électrode de chaque cellule de batterie est connectée au circuit imprimé par une carte FPC. Un conduit de gaz se trouve au-dessus de la surface supérieure du bloc de batterie. La carte FPC est disposée de manière à ne pas chevaucher verticalement le conduit de gaz sur la plaque d'extrémité.
PCT/JP2011/005562 2010-09-30 2011-09-30 Module de batterie, système de batterie comprenant celui-ci, véhicule électrique, corps mobile, dispositif de stockage d'énergie électrique, dispositif d'alimentation en énergie électrique et dispositif électrique WO2012042913A1 (fr)

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Application Number Priority Date Filing Date Title
JP2010221585 2010-09-30
JP2010-221585 2010-09-30
JP2010-244653 2010-10-29
JP2010244653 2010-10-29

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WO2012042913A1 true WO2012042913A1 (fr) 2012-04-05

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PCT/JP2011/005563 WO2012042914A1 (fr) 2010-09-30 2011-09-30 Support de piles, système de batteries équipé de celui-ci, véhicule électrique, véhicule en mouvement, dispositif de stockage d'énergie, dispositif d'alimentation électrique et dispositif électrique, et procédé de production de support de piles
PCT/JP2011/005562 WO2012042913A1 (fr) 2010-09-30 2011-09-30 Module de batterie, système de batterie comprenant celui-ci, véhicule électrique, corps mobile, dispositif de stockage d'énergie électrique, dispositif d'alimentation en énergie électrique et dispositif électrique

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6260192A (ja) * 1985-09-11 1987-03-16 Nec Corp 半導体メモリセルの駆動方法
JP2015103346A (ja) * 2013-11-22 2015-06-04 日立オートモティブシステムズ株式会社 組電池
CN104919622A (zh) * 2013-01-31 2015-09-16 株式会社丰田自动织机 电池模块
KR20160104053A (ko) * 2013-12-31 2016-09-02 비와이디 컴퍼니 리미티드 파워 배터리 모듈
KR20160104685A (ko) * 2013-12-31 2016-09-05 비와이디 컴퍼니 리미티드 파워 배터리 모듈
US9440601B2 (en) 2013-09-06 2016-09-13 Johnson Controls Technology Company System for providing voltage measurements of battery cells to a PCB within a battery module
CN105938182A (zh) * 2016-04-12 2016-09-14 东莞市高鑫检测设备有限公司 动力电池洗涤试验机
WO2017001120A1 (fr) * 2015-06-30 2017-01-05 Robert Bosch Gmbh Sous-module de batterie et système de batterie
JP2017216114A (ja) * 2016-05-31 2017-12-07 日立オートモティブシステムズ株式会社 蓄電モジュール
WO2018087680A1 (fr) * 2016-11-09 2018-05-17 Johnson Controls Technology Company Bloc-batterie à deux plaques d'extrémité
CN108075063A (zh) * 2016-11-09 2018-05-25 江森自控科技公司 具有排气通道的电池包
CN109686883A (zh) * 2018-12-24 2019-04-26 珠海银隆电器有限公司 电池箱模组生产方法、系统及电池箱模组
CN110785874A (zh) * 2017-07-18 2020-02-11 矢崎总业株式会社 电池模块以及电池监视单元搭载结构
CN111164786A (zh) * 2017-09-29 2020-05-15 三洋电机株式会社 电源装置
US10897065B2 (en) 2015-04-14 2021-01-19 Ford Global Technologies, Llc Electrified vehicle array plate that houses at least one electronic module
WO2021065160A1 (fr) * 2019-09-30 2021-04-08 三洋電機株式会社 Module de batterie et véhicule électrique et dispositif de stockage d'énergie comprenant le module de batterie
EP3813147A4 (fr) * 2019-08-20 2021-10-20 Contemporary Amperex Technology Co., Limited Module de batterie, bloc-batterie et appareil utilisant un élément de batterie
US11177525B2 (en) 2016-11-09 2021-11-16 Cps Technology Holdings Llc Battery pack
CN114122608A (zh) * 2020-08-31 2022-03-01 本田技研工业株式会社 电池单元
CN114284617A (zh) * 2021-12-17 2022-04-05 黄骞 一种快换电池箱中的电连接器密封结构
EP4050633A4 (fr) * 2019-10-23 2023-01-18 GS Yuasa International Ltd. Dispositif de stockage électrique
WO2024146856A1 (fr) * 2023-01-04 2024-07-11 Volvo Car Corporation Module de batterie comprenant deux sous-modules
US12080904B2 (en) 2016-11-09 2024-09-03 Cps Technology Holdings Llc Battery pack with housing made of two materials

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5956798B2 (ja) * 2012-03-23 2016-07-27 富士重工業株式会社 バッテリモジュール
KR101807115B1 (ko) 2014-04-03 2017-12-08 주식회사 엘지화학 언더 베이스 바를 포함하는 배터리 모듈 어레이
JP6507056B2 (ja) * 2015-07-24 2019-04-24 株式会社オートネットワーク技術研究所 電池配線モジュール
EP3196955B1 (fr) * 2016-01-20 2019-11-13 Robert Bosch GmbH Module de batterie
US20190372079A1 (en) * 2017-01-31 2019-12-05 Envision Aesc Japan Ltd. Battery pack production method and production device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007265658A (ja) * 2006-03-27 2007-10-11 Denso Corp 蓄電素子モジュール
JP2008066061A (ja) * 2006-09-06 2008-03-21 Hitachi Vehicle Energy Ltd 二次電池モジュール
JP2008226744A (ja) * 2007-03-15 2008-09-25 Gs Yuasa Corporation:Kk 組電池
JP2009266614A (ja) * 2008-04-25 2009-11-12 Sanyo Electric Co Ltd 組電池
JP2009277420A (ja) * 2008-05-13 2009-11-26 Yazaki Corp 温度検出モジュールの取付構造
JP2010277735A (ja) * 2009-05-26 2010-12-09 Sanyo Electric Co Ltd 電源装置及びこれを備える車両
JP2011222419A (ja) * 2010-04-13 2011-11-04 Sanyo Electric Co Ltd バッテリシステム及びこのバッテリシステムを搭載する車両

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006185733A (ja) * 2004-12-27 2006-07-13 Nissan Motor Co Ltd 組電池の製造方法およびその方法によって製造された組電池
JP5159112B2 (ja) * 2007-01-24 2013-03-06 三洋電機株式会社 電池パック及びその製造方法
JP5100140B2 (ja) * 2007-01-30 2012-12-19 三洋電機株式会社 電池パック及びその製造方法
JP2008277085A (ja) * 2007-04-27 2008-11-13 Sanyo Electric Co Ltd パック電池
JP2010108734A (ja) * 2008-10-30 2010-05-13 Toshiba Corp 電池モジュール
JP5377955B2 (ja) * 2008-12-24 2013-12-25 三洋電機株式会社 車両用の電源装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007265658A (ja) * 2006-03-27 2007-10-11 Denso Corp 蓄電素子モジュール
JP2008066061A (ja) * 2006-09-06 2008-03-21 Hitachi Vehicle Energy Ltd 二次電池モジュール
JP2008226744A (ja) * 2007-03-15 2008-09-25 Gs Yuasa Corporation:Kk 組電池
JP2009266614A (ja) * 2008-04-25 2009-11-12 Sanyo Electric Co Ltd 組電池
JP2009277420A (ja) * 2008-05-13 2009-11-26 Yazaki Corp 温度検出モジュールの取付構造
JP2010277735A (ja) * 2009-05-26 2010-12-09 Sanyo Electric Co Ltd 電源装置及びこれを備える車両
JP2011222419A (ja) * 2010-04-13 2011-11-04 Sanyo Electric Co Ltd バッテリシステム及びこのバッテリシステムを搭載する車両

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6260192A (ja) * 1985-09-11 1987-03-16 Nec Corp 半導体メモリセルの駆動方法
CN104919622A (zh) * 2013-01-31 2015-09-16 株式会社丰田自动织机 电池模块
US9440601B2 (en) 2013-09-06 2016-09-13 Johnson Controls Technology Company System for providing voltage measurements of battery cells to a PCB within a battery module
JP2015103346A (ja) * 2013-11-22 2015-06-04 日立オートモティブシステムズ株式会社 組電池
WO2015079430A1 (fr) * 2013-11-22 2015-06-04 日立オートモティブシステムズ株式会社 Batterie assemblée
KR20160104053A (ko) * 2013-12-31 2016-09-02 비와이디 컴퍼니 리미티드 파워 배터리 모듈
KR20160104685A (ko) * 2013-12-31 2016-09-05 비와이디 컴퍼니 리미티드 파워 배터리 모듈
JP2017501552A (ja) * 2013-12-31 2017-01-12 ビーワイディー カンパニー リミテッド 電源電池モジュール
JP2017501551A (ja) * 2013-12-31 2017-01-12 ビーワイディー カンパニー リミテッド 電源電池モジュール
KR101886371B1 (ko) 2013-12-31 2018-09-10 비와이디 컴퍼니 리미티드 파워 배터리 모듈
US10243182B2 (en) 2013-12-31 2019-03-26 Byd Company Limited Power battery module with detachable separators
KR101886787B1 (ko) 2013-12-31 2018-09-10 비와이디 컴퍼니 리미티드 파워 배터리 모듈
US10897065B2 (en) 2015-04-14 2021-01-19 Ford Global Technologies, Llc Electrified vehicle array plate that houses at least one electronic module
WO2017001120A1 (fr) * 2015-06-30 2017-01-05 Robert Bosch Gmbh Sous-module de batterie et système de batterie
CN105938182A (zh) * 2016-04-12 2016-09-14 东莞市高鑫检测设备有限公司 动力电池洗涤试验机
JP2017216114A (ja) * 2016-05-31 2017-12-07 日立オートモティブシステムズ株式会社 蓄電モジュール
US11322794B2 (en) 2016-11-09 2022-05-03 Cps Technology Holdings Llc Battery pack with gas discharging passage
US11177525B2 (en) 2016-11-09 2021-11-16 Cps Technology Holdings Llc Battery pack
US11724606B2 (en) 2016-11-09 2023-08-15 Cps Technology Holdings Llc Battery pack
WO2018087680A1 (fr) * 2016-11-09 2018-05-17 Johnson Controls Technology Company Bloc-batterie à deux plaques d'extrémité
US11742530B2 (en) 2016-11-09 2023-08-29 Cps Technology Holdings Llc Battery pack with two end plates
CN108075062A (zh) * 2016-11-09 2018-05-25 江森自控科技公司 具有两个端板的电池包
CN108075063A (zh) * 2016-11-09 2018-05-25 江森自控科技公司 具有排气通道的电池包
CN108075063B (zh) * 2016-11-09 2021-06-29 Cps科技控股有限公司 具有排气通道的电池包
CN108075062B (zh) * 2016-11-09 2021-08-06 Cps科技控股有限公司 具有两个端板的电池包
US12080904B2 (en) 2016-11-09 2024-09-03 Cps Technology Holdings Llc Battery pack with housing made of two materials
CN110785874B (zh) * 2017-07-18 2022-04-12 矢崎总业株式会社 电池模块以及电池监视单元搭载结构
CN110785874A (zh) * 2017-07-18 2020-02-11 矢崎总业株式会社 电池模块以及电池监视单元搭载结构
CN111164786A (zh) * 2017-09-29 2020-05-15 三洋电机株式会社 电源装置
CN111164786B (zh) * 2017-09-29 2022-06-28 三洋电机株式会社 电源装置
CN109686883A (zh) * 2018-12-24 2019-04-26 珠海银隆电器有限公司 电池箱模组生产方法、系统及电池箱模组
EP3813147A4 (fr) * 2019-08-20 2021-10-20 Contemporary Amperex Technology Co., Limited Module de batterie, bloc-batterie et appareil utilisant un élément de batterie
US11476533B2 (en) 2019-08-20 2022-10-18 Contemporary Amperex Technology Co., Limited Battery module, battery pack, and apparatus using battery cell
WO2021065160A1 (fr) * 2019-09-30 2021-04-08 三洋電機株式会社 Module de batterie et véhicule électrique et dispositif de stockage d'énergie comprenant le module de batterie
CN114450845A (zh) * 2019-09-30 2022-05-06 三洋电机株式会社 电池组件和具备该电池组件的电动车辆和蓄电装置
EP4050633A4 (fr) * 2019-10-23 2023-01-18 GS Yuasa International Ltd. Dispositif de stockage électrique
CN114122608A (zh) * 2020-08-31 2022-03-01 本田技研工业株式会社 电池单元
CN114284617A (zh) * 2021-12-17 2022-04-05 黄骞 一种快换电池箱中的电连接器密封结构
CN114284617B (zh) * 2021-12-17 2024-04-12 惠州市友隆实业有限公司 一种快换电池箱中的电连接器密封结构
WO2024146856A1 (fr) * 2023-01-04 2024-07-11 Volvo Car Corporation Module de batterie comprenant deux sous-modules

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