WO2014038240A1 - Dispositif d'accumulateur - Google Patents

Dispositif d'accumulateur Download PDF

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Publication number
WO2014038240A1
WO2014038240A1 PCT/JP2013/061773 JP2013061773W WO2014038240A1 WO 2014038240 A1 WO2014038240 A1 WO 2014038240A1 JP 2013061773 W JP2013061773 W JP 2013061773W WO 2014038240 A1 WO2014038240 A1 WO 2014038240A1
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WO
WIPO (PCT)
Prior art keywords
container
liquid
storage battery
temperature
battery device
Prior art date
Application number
PCT/JP2013/061773
Other languages
English (en)
Japanese (ja)
Inventor
貴志 榎本
小杉　伸一郎
関野　正宏
秀男 志水
村上　学
黒田　和人
室　永晃
宮本　英則
Original Assignee
株式会社東芝
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社東芝 filed Critical 株式会社東芝
Publication of WO2014038240A1 publication Critical patent/WO2014038240A1/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
    • 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
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M10/63—Control systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
    • 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
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • 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

  • Embodiments of the present invention relate to a storage battery device.
  • a battery such as an assembled battery in which a plurality of single cells are accommodated in a casing is known.
  • the storage battery device of the embodiment includes a container and a battery.
  • the container was filled with an insulating liquid.
  • the battery was immersed in the liquid in the container.
  • FIG. 1 is a front view showing an example of the storage battery device according to the first embodiment.
  • FIG. 2 is a front view (partially sectional view) showing an example of the internal configuration of the storage battery device according to the first embodiment.
  • FIG. 3 is a perspective view showing an example of an assembled battery according to the first embodiment.
  • FIG. 4 is an exploded perspective view showing an example of the assembled battery according to the first embodiment.
  • FIG. 5 is a plan view (partially sectional view) showing an example of the internal configuration of the assembled battery according to the first embodiment.
  • FIG. 6 is a block diagram illustrating an example of electrical connection of the storage battery device according to the first embodiment.
  • FIG. 7 is a front view (partially sectional view) showing an example of the internal configuration of the storage battery device according to the first modification of the first embodiment.
  • FIG. 8 is a front view (partially sectional view) showing an example of the internal configuration of the storage battery device according to the second modified example of the first embodiment.
  • FIG. 9 is a front view (partially sectional view) showing an example of the internal configuration of the storage battery device according to the second embodiment.
  • FIG. 10 is a perspective view illustrating an example of the storage battery device according to the third embodiment.
  • FIG. 11 is a perspective view illustrating an example of a part of the storage battery device according to the third embodiment.
  • 12 is a cross-sectional view taken along line F12-F12 of FIG. FIG.
  • FIG. 13 is a perspective view illustrating an example of the storage battery device according to the fourth embodiment.
  • FIG. 14 is an exploded perspective view showing an example of the storage battery device according to the fourth embodiment.
  • FIG. 15 is a perspective view illustrating an example of a container according to the fourth embodiment.
  • FIG. 16 is a perspective view showing an example of a battery unit according to the fourth embodiment.
  • FIG. 17 is a front view (partially sectional view) showing an example of the internal configuration of the storage battery device according to the fifth embodiment.
  • FIG. 18 is a front view (partially sectional view) showing an example of the internal configuration of the storage battery device according to the modification of the fifth embodiment.
  • FIG. 19 is a side view (partially sectional view) showing an example of the internal configuration of the assembled battery according to the sixth embodiment.
  • FIG. 20 is a block diagram illustrating an example of electrical connection of the storage battery device according to the sixth embodiment.
  • FIG. 21 is a flowchart illustrating an example of a flow of a temperature control process executed by the CPU according to the sixth embodiment.
  • FIG. 22 is a side view (partially sectional view) showing an example of the internal configuration of the assembled battery according to the modified example of the sixth embodiment.
  • FIG. 23 is a front view (partially sectional view) showing an example of the internal configuration of the storage battery device according to the seventh embodiment.
  • FIG. 24 is a block diagram illustrating an example of electrical connection of the storage battery device according to the seventh embodiment.
  • FIG. 25 is a flowchart illustrating an example of a flow of a temperature control process executed by the CPU according to the seventh embodiment.
  • FIG. 26 is a front view showing an example of the storage battery device according to the eighth embodiment.
  • FIG. 27 is a block diagram illustrating an example of electrical connection of the storage battery device according to the eighth embodiment.
  • FIG. 28 is a graph illustrating an example of a temperature change inside and outside the container according to the eighth embodiment.
  • FIG. 29 is a flowchart illustrating an example of a flow of a temperature control process executed by the CPU according to the eighth embodiment.
  • the storage battery device A power supply device, battery pack, battery cooling structure
  • the assembled battery 1 battery, see FIG. 2.
  • a plurality of assembled batteries 1 are provided.
  • the plurality of assembled batteries 1 are connected (electrically connected) in series or in parallel.
  • FIG. 2 the example in which the some assembled battery 1 was connected in series is shown as an example.
  • the assembled battery 1 has, for example, a plurality of single cells 3 (battery, single cell unit, single cell, see FIG. 4) connected in series or in parallel, and as an example, a secondary battery (storage battery, rechargeable battery). Battery). Therefore, it can be said that the assembled battery 1 is a battery module (battery unit). Moreover, the number, arrangement
  • the cell 3 can be configured as a lithium ion secondary battery, for example.
  • the unit cell 3 may be another secondary battery such as a nickel metal hydride battery, a nickel cadmium battery, or a lead storage battery.
  • a lithium ion secondary battery is a kind of non-aqueous electrolyte secondary battery, and lithium ions in the electrolyte are responsible for electrical conduction.
  • the positive electrode material include lithium manganese composite oxide, lithium nickel composite oxide, lithium cobalt composite oxide, lithium nickel cobalt composite oxide, lithium manganese cobalt composite oxide, spinel type lithium manganese nickel composite oxide, and olivine structure.
  • an oxide-based material such as lithium titanate (LTO), a carbonaceous material, a silicon-based material, or the like is used.
  • an electrolyte for example, an electrolytic solution
  • a lithium salt such as a fluorine-based complex salt (for example, LiBF4, LiPF6) is blended, for example, ethylene carbonate, propylene carbonate, diethyl carbonate, ethyl methyl carbonate, dimethyl carbonate.
  • organic solvents are used alone or in combination.
  • the storage battery device A (the assembled battery 1) is installed in various devices, machines, facilities, etc., and can be used as a power source for these various devices, machines, facilities.
  • the storage battery device A (the assembled battery 1) is used as a mobile power source such as a power source for an automobile or a bicycle (moving body), or a stationary power source such as a power source for a POS (point of sales) system. Also used as a power source for molds.
  • the storage battery apparatus A shown by this embodiment can be mounted in various apparatuses etc. as a set which connected two or more in series or in parallel.
  • the assembled battery 1 is accommodated in a container 100 (a casing, a container, and a storage part).
  • the container 100 is filled with an insulating liquid 200 (insulating liquid, insulating medium). That is, the container 100 stores the liquid 200.
  • Each assembled battery 1 is immersed (immersed) in the liquid 200 in the container 100.
  • the liquid 200 for example, insulating oil, fluorine-based inert liquid, or the like can be used.
  • the container 100 has a substantially rectangular parallelepiped appearance as an example.
  • the container 100 has a plurality of wall portions (walls) such as a bottom wall 100a, a side wall 100b, an end wall 100c, and a top wall 100d.
  • the bottom wall 100a (wall portion) is formed in a quadrangular (for example, rectangular) plate shape.
  • the side wall 100b (wall portion) is formed in a quadrangular (for example, rectangular) plate shape.
  • the side wall 100b is connected to an end portion in the longitudinal direction of the bottom wall 100a, and extends along a direction crossing the bottom wall 100a (a direction orthogonal to the present embodiment as an example).
  • the end wall 100c (wall portion) is formed in a quadrangular (for example, rectangular) plate shape, and is connected to the short-side end of the bottom wall 100a. Further, the end wall 100c extends along a direction crossing the bottom wall 100a (in the present embodiment, a direction orthogonal to the example).
  • the side wall 100b is connected to the adjacent end wall 100c.
  • the top wall 100d (wall portion) is formed in a quadrangular (for example, rectangular) plate shape. The top wall 100d is connected to the end portions of the side wall 100b and the end wall 100c, and extends along a direction crossing the side wall 100b and the end wall 100c (in the present embodiment, a direction orthogonal to the example).
  • the bottom wall 100a and the top wall 100d are arranged side by side (in the present embodiment, in parallel as an example) with their inner surfaces (inner surfaces of the container 100) facing each other (facing each other).
  • the two side walls 100b are arranged side by side (in parallel with each other as an example in the present embodiment) in a state where their inner surfaces face (oppose) each other.
  • the two end walls 100c are arranged side by side (in the present embodiment, in parallel as an example) with their inner surfaces facing (opposed).
  • the container 100 is made of a metal material, an insulating synthetic resin material, or the like.
  • the container 100 is configured as a combination of a plurality of members (the container part 101 and the lid part 102 in the present embodiment).
  • the container part 101 (first member, container, container member, main body part) includes a bottom wall 100a, a side wall 100b, and an end wall 100c.
  • the container portion 101 is provided with a concave (cuboid) chamber 100e (a storage chamber, a storage portion, a recess) in which the assembled battery 1 can be inserted (inserted / removed).
  • the chamber 100e is surrounded by a bottom wall 100a, a side wall 100b, an end wall 100c, and the like.
  • An opening 100e1 (first opening) through which the assembled battery 1 can be inserted (inserted / removed) is provided on the upper surface of the chamber 100e.
  • the container 200 (chamber 100e) contains the liquid 200.
  • the lid 102 (second member, lid, lid member) includes a top wall 100d. The lid part 102 is attached to the container part 101 and closes the opening part 100e1.
  • the container 100 has a projecting portion 100 f in which the peripheral portion of the top wall 100 d projects outward in a flange shape from the outer surface of the side wall 100 b. .
  • the overhang portion 100f has an upper wall 100g (wall portion) and a lower wall 100h (wall portion).
  • the upper wall 100g is a peripheral portion of the top wall 100d of the lid portion 102.
  • the lower wall 100h projects from the end of the side wall 100b of the container portion 101 on the lid portion 102 side so as to face the upper wall 100g.
  • an annular recess 100h1 (a space, a storage chamber, a storage portion) is formed.
  • the seal member 120 is accommodated in the recess 100h1.
  • the container part 101 and the cover part 102 are couple
  • the container portion 101 and the lid portion 102 are fixed by a fixture (for example, a screw), and the lid portion 102 is detachable from the container portion 101.
  • the upper wall 100g and the lower wall 100h of the projecting portion 100f are fixed by a fixture. And the sealing performance (airtightness, liquid tightness) between the container part 101 and the cover part 102 is maintained (secured) by the sealing member 120.
  • the bottom wall 100a of the container 101 is provided with a discharge port 100i (opening, opening).
  • the discharge port 100i communicates the inside and outside of the container part 101 (chamber 100e).
  • the discharge port 100i is closed by a closing member 103 (lid portion).
  • the closing member 103 is detachably attached to the bottom wall 100a with, for example, screws. By removing the closing member 103 from the bottom wall 100a, the discharge port 100i is opened, and the liquid 200 in the container 101 (chamber 100e) is discharged from the discharge port 100i.
  • the container unit 101 is provided with an inspection unit 100j.
  • the inspection part 100j protrudes from one side wall 100b of the pair of side walls 100b.
  • the inspection unit 100j is provided with an inspection port 100k (opening, opening) that opens upward, and the inspection port 100k communicates the inside and outside of the container unit 101 (chamber 100e).
  • the inspection port 100k is closed by a closing member 104 (lid portion, service valve).
  • the closing member 104 is detachably attached to the inspection unit 100j with, for example, screws. By removing the blocking member 104 from the inspection unit 100j, the inspection port 100k is opened, and the inspection of the container unit 101 (the chamber 100e) can be performed.
  • an inspection rod (not shown) is inserted into the container 101 from the inspection port 100k and then pulled out, and the liquid 200 attached to the inspection rod is observed to check the state and amount of the liquid 200. sell. It is also possible to inject the liquid 200 into the container part 101 from the inspection port 100k. Therefore, the inspection port 100k can also be called a liquid injection port.
  • the container unit 101 includes a level switch 105 (first level switch, first liquid detection sensor, first sensor, sensor, upper limit sensor) and level switch 106 (second level switch, second liquid detection). Sensor, second sensor, sensor, lower limit sensor) and pressure sensor 107 (third sensor, sensor) are provided.
  • the level switches 105 and 106 detect the liquid 200 (presence / absence).
  • the pressure sensor 107 detects the pressure in the container unit 101 (pressure of the liquid 200).
  • the level switches 105 and 106 and the pressure sensor 107 are provided on the other side wall 100b of the pair of side walls 100b. That is, the level switches 105 and 106 and the pressure sensor 107 are provided as an example on the side wall 100b on which the inspection unit 100j is not provided.
  • the level switches 105 and 106 and the pressure sensor 107 are provided so as to penetrate the side wall 100 b, and their tip portions (sensor portion, detection portion) are located in the container portion 101.
  • the level switch 105 is positioned at the upper end of the container unit 101
  • the level switch 106 is positioned below the level switch 105
  • the pressure sensor 107 is positioned below the level switch 106.
  • the container portion 101 in a state where a specified amount (first specified amount) of liquid 200 is placed in the container portion 101, the container portion 101 has a gas 300 (gas layer, air, gas) above the liquid 200. ) Exists.
  • the level switch 105 is exposed to the gas 300 without being immersed in the liquid 200, and the level switch 106 and the pressure sensor 107 are immersed in the liquid 200.
  • the lid portion 102 is provided with an attachment portion 108 (attachment member, suspension portion, suspension member, holding portion, holding member, frame) in which the assembled battery 1 is attached to the lid portion 102.
  • the attachment portion 108 is attached to the lid portion 102 in a suspended state.
  • the attachment portion 108 includes a pair of arm portions 108a (first part, side portion, wall portion) and a bottom portion 108b (bottom wall portion, wall portion) in which the lower ends of the pair of arm portions 108a are connected to each other. have.
  • a pair of overhang portions 108c (fixed portions) is provided at the upper end portion of each arm portion 108a.
  • the pair of overhanging portions 108 c extend from the respective arm portions 108 a along the lower surface 102 a (inner surface) of the lid portion 102 in a direction away from each other.
  • these overhang portions 108c are detachably fixed to the lid portion 102 by a fixing tool 116 (screw).
  • the mounting portion 108 supports a plurality of assembled batteries 1.
  • the plurality of assembled batteries 1 are placed on the bottom portion 108b and are coupled to the attachment portion 108 by a fixture (for example, a screw or the like), an adhesive, or the like (not shown).
  • the assembled battery 1 supported by the attachment portion 108 is separated from the inner surface 101 a of the container portion 101.
  • the assembled battery 1 is separated from the bottom surface 101b and the peripheral surface 101c constituting the inner surface 101a.
  • the bottom surface 101b is constituted by the inner surface of the bottom wall 100a
  • the peripheral surface 101c is constituted by the inner surface of the side wall 100b and the inner surface of the end wall 100c.
  • the liquid 200 exists between the assembled battery 1 and the inner surface 101a (the bottom surface 101b, the peripheral surface 101c).
  • the attachment portion 108 is made of a metal material or an insulating material (synthetic resin or the like).
  • the plurality of assembled batteries 1 supported by the attachment portion 108 are, as an example, entirely positioned below the liquid level 200 a of the liquid 200.
  • the some assembled battery 1 supported by the attaching part 108 is connected in series through the electrically-conductive member 109 (connection member) as an example.
  • the conductive member 109 is made of a conductive metal material.
  • the lid portion 102 is provided with a positive electrode portion 110 (electrode portion) and a negative electrode portion 111 (electrode portion).
  • the positive electrode portion 110 is connected to the positive electrode portion 31 of a certain assembled battery 1 among the plurality of assembled batteries 1 via the conductive member 109, and the negative electrode portion 111 is the other of the plurality of assembled batteries 1.
  • the battery assembly 1 is connected to the negative electrode portion 32 of the assembled battery 1 via the conductive member 109.
  • the positive electrode unit 110, the negative electrode unit 111, and the plurality of assembled batteries 1 are connected (electrically connected) via the conductive member 109, and the electric circuit 112 (first electric circuit, circuit, first circuit) is connected. It is composed.
  • the electric circuit 112 includes the assembled battery 1 and the electrode portions (the positive electrode portion 110 and the negative electrode portion 111).
  • the electric circuit 112 is provided with a shut-off device 113 (service plug).
  • the blocking device 113 is provided between the positive electrode portion 110 of one assembled battery 1 and the negative electrode portion 111 of the other assembled battery 1 of the adjacent assembled batteries 1.
  • the shut-off device 113 is normally connected to the electric circuit 112, but shuts off the electric circuit 112 by receiving a predetermined operation. Thereby, the energization of the electric circuit 112 is interrupted.
  • the positive electrode portion 110 and the negative electrode portion 111 are electrically connected to the assembled battery 1 and exposed from the housing body 100.
  • the positive electrode portion 110 and the negative electrode portion 111 are provided on a closing member 114 (lid portion, lid member).
  • the closing member 114 closes an opening 102 b (opening, insertion hole) provided in the lid 102.
  • An annular recess 102c space, accommodation chamber, accommodation portion surrounding the opening 102b is formed at the peripheral edge of the opening 102b of the lid 102.
  • the sealing member 115 is accommodated in the recess 102c.
  • the closing member 114 is fixed to the lid 102 by a screw as an example, and the closing member 114 is detachable from the lid 102.
  • the sealing member 115 maintains (ensures) the sealing performance (air tightness, liquid tightness) between the closing member 114 and the lid 102.
  • the lid 102 is provided with a management device 117 (first electric component, substrate device, first substrate device).
  • the management device 117 is configured by mounting electrical components such as a CPU 51 (see FIG. 6) on a substrate.
  • the management device 117 controls and manages the monitoring device 33 (second electrical component, board device, second board device) provided in each assembled battery 1.
  • the management device 117 is coupled (fixed) to a support portion 102e provided on the upper surface 102d (outer surface) of the lid portion 102 by a fixture (for example, a screw) not shown or an adhesive.
  • the management device 117 is electrically connected to each assembled battery 1.
  • the management device 117 is connected to the monitoring device 33 provided in the assembled battery 1 via the wiring 118 (signal line, electric wire, cable) accommodated in the container 100.
  • the wiring 118 is connected to the management device 117 via the connector 119.
  • the connector 119 has a waterproof (oilproof) function.
  • the connector 119 is inserted into an opening 102f (second opening, opening, insertion hole) provided in the lid 102 (container 100) to close the opening 102f.
  • the connector 119 electrically connects the wiring 118 and the management device 117 and restricts the liquid 200 from passing through the opening 102f. Therefore, the connector 119 prevents the liquid 200 from leaking from the opening 102f.
  • the monitoring device 33 is provided in each assembled battery 1 and monitors the assembled battery 1. As an example, the monitoring device 33 monitors the voltage or the like of the assembled battery 1 and transmits the voltage or the like (monitoring result) to the management device 117.
  • the plurality of monitoring devices 33 are connected in series by
  • a relief valve 121 (valve, first valve) and a safety valve 122 (valve, second valve) are provided on the lid 102 of the container 100.
  • the relief valve 121 and the safety valve 122 open the container 100 due to an increase in pressure in the container 100.
  • the safety valve 122 opens the container 100 when the lid 102 is cut off by a thin portion 122a (fragile part) provided in the lid 102 due to an increase in pressure of the container 100.
  • the relief valve 121 is closed when the pressure in the container 100 is equal to or lower than the first pressure, and is opened when the pressure in the container 100 exceeds the first pressure.
  • the safety valve 122 is closed when the pressure in the container 100 is equal to or lower than the second pressure, and is opened when the pressure in the container 100 exceeds the second pressure.
  • the second pressure is higher than the first pressure.
  • the assembled battery 1 has a housing 2 as shown in FIGS.
  • the housing 2 accommodates a plurality of unit cells 3.
  • the housing 2 has a bottom wall 2a, a side wall 2b, an end wall 2c, and a top wall 2d.
  • the bottom wall 2a is formed in a quadrangular (for example, rectangular) plate shape.
  • the side wall 2b is formed in a quadrangular (for example, rectangular) plate shape.
  • the side wall 2b is connected to the edge part of the short direction of the bottom wall 2a, and is extended along the direction (direction orthogonal as an example in this embodiment) which crosses the bottom wall 2a.
  • the end wall 2c is formed in a quadrangular (for example, rectangular) plate shape, and is connected to the end of the bottom wall 2a in the longitudinal direction. Further, the end wall 2c extends along a direction intersecting with the bottom wall 2a (a direction orthogonal as an example in the present embodiment).
  • the side wall 2b is connected to the adjacent end wall 2c.
  • the top wall 2d is formed in a quadrangular (for example, rectangular) plate shape.
  • the top wall 2d is connected to the ends of the side wall 2b and the end wall 2c, and extends along a direction crossing the side wall 2b and the end wall 2c (in the present embodiment, a direction orthogonal to the example).
  • the top wall 2d is provided in parallel (in parallel) with the bottom wall 2a.
  • casing 2 has the partition 2e.
  • the partition wall 2e is formed in a quadrangular (for example, rectangular) plate shape.
  • the partition wall 2e is located between the bottom wall 2a and the top wall 2d, and is provided in parallel to the bottom wall 2a and the top wall 2d.
  • the interior of the housing 2 is divided into two spaces (chambers 25a and 25b) by the partition wall 2e.
  • a plurality of single cells 3 are accommodated in the chamber 25a (space) on the bottom wall 2a side of the partition wall 2e, and a bus bar is accommodated in the chamber 25b (space) on the top wall 2d side of the partition wall 2e.
  • the partition wall 2e has a through portion 2f (for example, a hole, a notch, etc.) corresponding to (oppositely) the electrode portion 3a (positive electrode portion and negative electrode portion) of the cell 3 as an example in the present embodiment.
  • a through-hole is provided. At least one of the electrode part 3a and the bus bar electrically connected to the electrode part 3a penetrates the through part 2f.
  • the housing 2 is configured by combining a plurality of (four in the present embodiment, four) members 21 to 24 as shown in FIG.
  • the housing 2 includes a first member 21, a second member 22, a third member 23, and a fourth member 24.
  • the first member 21 includes a bottom wall 2a and end portions of the side wall 2b and the end wall 2c, and is configured in a dish shape (square dish shape).
  • the second member 22 includes a side wall 2b and an end wall 2c, and is configured in a cylindrical shape (square cylindrical shape).
  • the third member 23 includes a partition wall 2e and a part of the side wall 2b and the end wall 2c surrounding the periphery.
  • the fourth member 24 includes a top wall 2d, and side walls 2b and end portions of the end wall 2c, and is formed in a dish shape (square dish shape).
  • the plurality of members 21 to 24 are coupled by a fixing tool (for example, a screw) or an adhesive (not shown). Note that the configuration of the members 21 to 24 constituting the housing 2 shown here is merely an example, and the housing 2 can be configured by various member shapes, combinations, and the like.
  • the housing 2 can be made of a synthetic resin material, a metal material, or the like.
  • casing 2 is comprised with an insulating material as an example.
  • the outer surface 2g or the inner surface 2h of the housing 2 can be covered with an insulating material as necessary.
  • a seal member is provided in the housing 2 as necessary. As an example, this sealing member has a function of preventing moisture permeation into the housing 2 when the housing 2 is made of a synthetic resin material.
  • the cell 3 and the heat transfer member 4 are placed in a chamber 25 a in the housing 2 on the side of the bottom wall 2 a from the partition wall 2 e.
  • the unit cell 3 has a flat rectangular (rectangular) appearance.
  • the unit cell 3 has a housing 3b made of a metal material (for example, an aluminum alloy).
  • the housing 3b is preferably made of a material having high thermal conductivity.
  • the housing 3b may be made of, for example, a synthetic resin material.
  • the electrode portion 3 a is provided on the outer surface 3 c (end surface, side surface) that is an end portion in the longitudinal direction of the unit cell 3.
  • the heat transfer member 4 is configured as a quadrangular (for example, rectangular) sheet, for example.
  • the heat transfer member 4 includes a material different from the housing 2, for example, includes a material having a higher thermal conductivity than the housing 2, and has a higher thermal conductivity than the housing 2.
  • a configuration including carbon fiber or a configuration including a resin material (for example, silicon resin) including a filler having a relatively high thermal conductivity (for example, carbon) can be used.
  • the heat transfer member 4 can have elasticity.
  • the heat transfer member 4 may include an elastomer (synthetic rubber or the like) layer.
  • the size of the heat transfer member 4 is substantially the same as the size of the outer surface 3d (side surface) that is the end of the unit cell 3 in the thickness direction.
  • an adhesive that fixes the single cells 3 or fixes the single cells 3 to the housing 2 can be used as the heat transfer member 4.
  • the heat transfer member 4 has a function of fixing the unit cell 3 to the housing 2 and a function of transferring heat.
  • a plurality of single cells 3 are arranged in the thickness direction, and the plurality of single cells 3 and the heat transfer member 4 are They are alternately stacked in the thickness direction. That is, the heat transfer member 4 is interposed between two adjacent unit cells 3.
  • the unit cell 3 and the heat transfer member 4 are arranged in close contact with each other. Thereby, the heat transfer property between the cell 3 and the heat transfer member 4 is more likely to be improved.
  • a positive electrode portion 31 and a negative electrode portion 32 are provided on the top wall 2d (outer surface 2g) of the housing 2.
  • the positive electrode portion 31 and the negative electrode portion 32 are exposed (projected) from the outer surface 2g.
  • the positive electrode part 31 is connected to the electrode part 3 a (positive electrode part) of a certain single cell 3 among the plurality of single cells 3.
  • the negative electrode part 32 is connected to an electrode part 3 a (negative electrode part) of another unit cell 3 among the plurality of unit cells 3.
  • the monitoring device 33 is fixed to the top wall 2d (outer surface 2g) of the housing 2 by a fixing tool (for example, a screw) or an adhesive (not shown).
  • the assembled battery 1 having the above configuration is supported by the mounting portion 108 in such a posture that the top wall 2d of the housing 2 faces the end wall 100c of the container 100.
  • the storage battery device A includes a CPU (Central Processing Unit) 51, a ROM (Read Only Memory) 52, and a RAM (Random Access Memory) 53, as shown in FIG.
  • the CPU 51, ROM 52, and RAM 53 are connected via a bus line 54 such as an address bus and a data bus to constitute a computer.
  • the CPU 51, ROM 52, and RAM 53 are mounted on the board of the management apparatus 117 and constitute a part of the management apparatus 117.
  • the CPU 51 is an example of a control unit.
  • the CPU 51 controls each part of the storage battery device A by executing various computer-readable programs stored in the ROM 52.
  • the ROM 52 stores various programs executed by the CPU 51 and various data.
  • the RAM 53 temporarily stores various programs executed by the CPU 51 and stores various data in a rewritable manner.
  • level switches 105 and 106, a pressure sensor 107, and a monitoring device 33 are connected to the CPU 51 via a bus line 54.
  • a communication interface (I / F in the drawing) 131 and a notification unit 132 as a communication unit are connected to the CPU 51 via the bus line 54.
  • the communication interface 131 performs communication with an external device.
  • the notification unit 132 includes, for example, a display unit, an audio output unit, and the like, and notifies (outputs) various types of information.
  • the display unit is, for example, a liquid crystal display or an LED (Light Emitting Diode).
  • the audio output unit is, for example, a speaker or a buzzer.
  • the notification unit 132 is provided on the lid 102 of the container 100 and is exposed to the outside of the container 100.
  • the CPU 51 when the level switch 105 detects the liquid 200, the CPU 51 causes the notification unit 132 to notify that the liquid 200 is detected by the level switch 105. This notification is given, for example, when the user injects the liquid 200 too much when the user injects the liquid 200 from the inspection port 100k. Further, when the level switch 106 detects the liquid 200, the CPU 51 notifies the notification unit 132 that the level 200 has detected the liquid 200. This notification is given, for example, when the amount of the liquid 200 decreases due to, for example, the liquid 200 leaking from the container 100 for some reason. In addition, when the pressure detected by the pressure sensor 107 exceeds the specified pressure, the CPU 51 causes the notification unit 132 to notify that the pressure has exceeded the specified pressure. This notification is given, for example, when the pressure in the container 100 is increased for some reason.
  • the assembled battery 1 is immersed in the insulating liquid 200 in the container 100. Therefore, according to the present embodiment, as an example, heat can be more efficiently transferred between the assembled battery 1 and the container 100 by the liquid 200. That is, as an example, when the temperature of the assembled battery 1 rises due to self-heating during charging and discharging and the heat of the assembled battery 1 is transmitted to the liquid 200, the temperature of the liquid 200 in the vicinity of the assembled battery 1 rises, The density decreases with respect to the liquid 200 in the region, buoyancy occurs, and convection occurs.
  • the heated liquid 200 in the vicinity of the assembled battery 1 moves above the container 100 (in the direction of the lid 102), and the moved liquid 200 moves to the side of the container 100 (side wall 100b and end wall 100c). And the heat of the assembled battery 1 is transmitted to the wall portion or the lid portion 102 of the container 100. Therefore, since the heat of the assembled battery 1 is transmitted to the housing body 100 by the liquid 200 on a wide surface, the temperature of the housing body 100 rises, and a large amount of heat can be released from the wide surface to the outside.
  • the liquid 200 in another region flows into the vicinity region of the assembled battery 1 to which the liquid 200 has moved, and the temperature of the liquid 200 rises again due to the heat of the assembled battery 1, and the liquid 200 that has flowed in is (In the direction of the lid 102).
  • the liquid 200 continuously convects and diffuses inside the container 100, so that the heat of the assembled battery 1 is efficiently transferred to the container 100 by the liquid 200, and the heat of the assembled battery 1 is transferred from the container 100 to the outside. Can be released. That is, the assembled battery 1 can be cooled. Thereby, the favorable output characteristic of the assembled battery 1 is obtained.
  • the liquid 200 is easily stirred. That is, as an example, when the storage battery device A of the present embodiment is used for a moving body such as an automobile, the liquid 200 is swung and stirred in the container 100 due to vibration during driving of the automobile or acceleration due to decelerating speed. By this stirring, the heated liquid 200 reaches the wall portion or the lid portion 102 of the container 100 more quickly, and the heat of the assembled battery 1 is quickly transmitted to the container 100. Furthermore, since the liquid 200 having a relatively low temperature can flow into the vicinity of the assembled battery 1 more quickly by stirring, an effect of efficiently transferring the heat of the assembled battery 1 to the liquid 200 is produced.
  • the assembled battery 1 since the assembled battery 1 is immersed in the insulating liquid 200, the assembled battery 1 is protected and insulated by the insulating liquid 200, and the assembled battery 1 is rusted or short-circuited. Can be suppressed. Further, in this embodiment, heat transfer is performed by immersing the assembled battery 1 in the insulating liquid 200, and therefore, compared with the case where the assembled battery 1 is cooled using, for example, a water cooling jacket, the flow path piping and the flow path Since a connection part can be made unnecessary, the storage battery apparatus A can be made into a simple structure. Therefore, the assembly property of the storage battery device A can be improved and the cost can be reduced, and the structural safety can be improved.
  • heat transfer is performed by immersing the assembled battery 1 in the insulating liquid 200, so that the heat capacity of the liquid 200 is extremely large compared to air cooling, and the heat of the assembled battery 1 is large in comparison with air cooling. Therefore, the assembled battery 1 can be efficiently cooled.
  • the cooling in the case of using a conductive liquid such as water cooling, if the assembled battery 1 is directly immersed in the liquid, the assembled battery 1 is short-circuited. Therefore, it is necessary to isolate the liquid from the assembled battery 1 by a jacket or the like.
  • the heat of the plurality of assembled batteries 1 is shortened by mutual convection, diffusion, stirring, and heat transport of the insulating liquid 200 described above. Heat can be exchanged over time, and variations in cooling and heating among the plurality of assembled batteries 1 can be suppressed. Therefore, the dispersion
  • the container 100 includes a container part 101 and a lid part 102.
  • the container part 101 is provided with an opening 100 e 1 into which the assembled battery 1 can be inserted, and the container part 101 is filled with the liquid 200.
  • the lid part 102 is attached to the container part 101 and closes the opening part 100e1.
  • the assembled battery 1 is attached to the lid portion 102 by the attachment portion 108. Therefore, since the assembled battery 1 is positioned in the container part 101 by attaching the lid part 102 to the container part 101, the storage battery device A can be manufactured relatively easily.
  • the liquid 200 may be put in the container portion 101 from the opening 100e1 or the inspection port 100k in advance before attaching the lid portion 102, or after the lid portion 102 is attached to the container portion 101 from the inspection port 100k. You may put it in.
  • the positive electrode part 110, the negative electrode part 111, the shutoff device 113, the management device 117, the relief valve 121, and the like are provided on the lid portion 102 in a concentrated manner. Further, the assembled battery 1 is attached to and supported by the attachment portion 108, the attachment portion 108 is detachably fixed to the lid portion 102 via the overhanging portion 108 c, and the lid portion 102 is attached to the container portion 101. Therefore, as an example, the container part 101 in which the positive electrode part 110, the negative electrode part 111, etc. are disposed, the lid part 102 on which the assembled battery 1 is fixed via the attachment part 108 is suspended with a wire, and the liquid 200 is immersed therein. Can be placed and fixed against. Accordingly, the heat transfer structure A can be manufactured relatively easily.
  • the assembled battery 1 is separated from the inner surface 101a (the bottom surface 101b, the peripheral surface 101c) of the container part 101. Therefore, since the liquid 200 exists between the inner surface 101a and the assembled battery 1, the liquid 200 easily flows into the vicinity of the assembled battery 1 when the temperature of the assembled battery 1 rises due to the above-described self-heating during charging and discharging. Or by stirring, the heated liquid 200 tends to flow out from the vicinity of the assembled battery 1 and the relatively low temperature liquid 200 flows into the vicinity of the assembled battery 1. Heat can be efficiently transferred between the body 100 (external air).
  • the housing body 100 is provided with a relief valve 121 and a safety valve 122 that open the housing body 100 due to a pressure increase in the housing body 100. Therefore, when the pressure in the container 100 rises, an excessive pressure rise in the container 100 can be suppressed by the relief valve 121 and the safety valve 122.
  • each monitoring device 33 (second electrical component) is immersed in the liquid 200 in a state of being covered by the liquid-proof part 60 (oil-proof part, waterproof part).
  • the liquid-proof part 60 is made of laminate, for example.
  • the liquid-proof part 60 may be provided in a bag shape containing the monitoring device 33, or may be provided in a layer shape in close contact with the monitoring device 33.
  • the liquid prevention unit 60 restricts the liquid 200 from directly touching the monitoring device 33.
  • the liquid-proof part 60 restricts the liquid 200 from directly touching the monitoring device 33, the state of the monitoring device 33 can be maintained better.
  • each assembled battery 1 is not provided with the monitoring device 33 (see FIG. 2), and the monitoring device 33 is provided integrally with the management device 117. That is, in this modification, the monitoring device 33 is positioned outside the container 100 together with the management device 117 and is not immersed in the liquid 200. Note that the monitoring device 33 may be provided in the lid 102 separately from the management device 117.
  • the electrode part 3 a of each unit cell 3 is connected to the management device 117 via the detection line 133, the connector 134, the wiring 118, and the connector 119.
  • the state of the monitoring device 33 can be maintained better.
  • a plurality of containers 100A are provided.
  • the containers 100A are stacked on each other.
  • a liquid 200 is placed in each container 100A.
  • a plurality of battery packs 1 are provided and placed in a plurality of containers 100A. That is, each container 100A contains the liquid 200 and the assembled battery 1.
  • the plurality of assembled batteries 1 are connected in series or in parallel.
  • FIG. 9 shows an example in which a plurality of assembled batteries 1 are connected in series.
  • the container 100A has a substantially rectangular parallelepiped appearance as an example, similar to the container 100 of the first embodiment.
  • the container 100A similarly to the container 100 of the first embodiment, as an example, the container 100A includes a plurality of wall portions (walls) such as a bottom wall 100a, a side wall 100b, an end wall 100c, and a top wall 100d. )have.
  • the container 100A is configured as a combination of a plurality of members (the bottom wall 100a, the side wall 100b, the end wall 100c, and the top wall 100d).
  • Each member (the bottom wall 100a, the side wall 100b, the end wall 100c, and the top wall 100d) is coupled (fixed) by, for example, a fixture (not shown), an adhesive, or the like (not shown).
  • a chamber 100e is formed inside the container 100A.
  • a liquid 200 is placed in the container 100A (the chamber 100e).
  • the container 100A has a partition wall 100p.
  • the partition wall 100p is located between the pair of side walls 100b and connects the bottom wall 100a and the top wall 100d.
  • the interior (chamber 100e) of the container 100A is divided into two chambers 100e2 and 100e3 by a partition wall 100p.
  • a plurality of assembled batteries 1 and the like are accommodated in one chamber 100e2, and a conductive member 109 and the like are accommodated in the other chamber 100e3.
  • the partition wall 100p is provided with a plurality of openings 100p1.
  • the liquid 200 can flow between the two chambers 100e2 and 100e3 through these openings 100p1.
  • a conductive member 109 is inserted into the opening 100p1.
  • the container 100A includes an overhanging portion 100f in which the peripheral portion of the top wall 100d protrudes outward in a flange shape from the outer surface of the side wall 100b, and the peripheral portion of the bottom wall 100a is the side wall 100b. And an overhanging portion 100m that projects outwardly in a flange shape from the outer surface.
  • the interiors of the containers 100A adjacent in the vertical direction are communicated with each other by a flow channel 100n (first flow channel).
  • the flow path 100n allows the liquid 200 to flow between the containers 100A.
  • the channel 100n is positioned on the lower side of the opening 100n1 provided on the bottom wall 100a of the container 100A positioned on the upper side among the containers 100A adjacent in the vertical direction and on the container 100A adjacent in the vertical direction.
  • an opening 100n2 provided in the top wall 100d of the container 100A.
  • the channel 100n is provided for each of the chambers 100e2 and 100e3.
  • a conductive member 109 constituting the electric circuit 112 is inserted through the flow path 100n.
  • the discharge port 100i is provided in the bottom wall 100a of the container 100A located in the lowest position as an example.
  • the discharge port 100i is closed by a closing member 103 (lid portion). By removing the closing member 103 from the bottom wall 100a, the discharge port 100i is opened, and the liquid 200 in each container 100A (chamber 100e) is discharged from the discharge port 100i.
  • the assembled battery 1 is placed on the bottom wall 100a as the bottom of the housing 100A.
  • the assembled battery 1 is placed on the bottom wall 100a, and a buffer material 135 is provided between the adjacent assembled batteries 1 and between the assembled battery 1 and the partition wall 100p. 135, the side wall 100b, the end wall 100c, and the partition wall 100p are mutually pressed and fixed.
  • the buffer material 135 is, for example, a plate-like rubber or sponge.
  • the positive electrode portion 110 (electrode portion) and the negative electrode portion 111 (electrode portion) are provided on one side wall 100b of the container 100A positioned at the top.
  • the positive electrode portion 110 is connected to the positive electrode portion 31 of a certain assembled battery 1 among the plurality of assembled batteries 1 via the conductive member 109, and the negative electrode portion 111 is the other of the plurality of assembled batteries 1.
  • the battery assembly 1 is connected to the negative electrode portion 32 of the assembled battery 1 via the conductive member 109.
  • the positive electrode unit 110, the negative electrode unit 111, and the plurality of assembled batteries 1 are connected (electrically connected) via the conductive member 109, and the electric circuit 112 (first electric circuit, circuit, first circuit) is connected. It is composed.
  • blocking apparatus 113 contained in the electric circuit 112 is provided in one side wall 100b of the container 100A between the lowest and the highest as an example.
  • the positive electrode part 110 and the negative electrode part 111 are exposed from the uppermost container 100A.
  • the positive electrode portion 110 and the negative electrode portion 111 are provided on a closing member 114 (lid portion, lid member).
  • the closing member 114 closes the opening 102b provided on the side wall 100b of the uppermost container 100A.
  • An annular recess 102c (a space, a storage chamber, and a storage portion) surrounding the opening 102b is formed at the peripheral edge of the opening 102b.
  • the sealing member 115 is accommodated in the recess 102c.
  • the closing member 114 is fixed to the side wall 100b by a fixing tool (screw) as an example, and the closing member 114 is detachable from the side wall 100b.
  • the sealing member 115 maintains (ensures) the sealing performance (air tightness, liquid tightness) between the closing member 114 and the side wall 100b.
  • the other side wall 100b is provided with a management device 117 (not shown in FIG. 9, see FIG. 2).
  • the management device 117 controls and manages the monitoring device 33 provided in each assembled battery 1 accommodated in the container 100A in which the management device 117 is provided.
  • the management device 117 is connected to the monitoring device 33 via the wiring 118 accommodated in the container 100A.
  • the wiring 118 is connected to the management device 117 via the connector 119.
  • the connector 119 is inserted into the opening 102f provided on the other side wall 100b to close the opening 102f.
  • the connector 119 electrically connects the wiring 118 and the management device 117 and restricts the liquid 200 from passing through the opening 102f. Therefore, the connector 119 prevents the liquid 200 from leaking from the opening 102f.
  • the plurality of monitoring devices 33 are connected in series by a wiring 118 as an example.
  • the relief valve 121 is provided on the top wall 100d of the uppermost container 100A, and the safety valve 122 is provided on one side wall 100b of the lowermost container 100A.
  • the assembled battery 1 is immersed in the insulating liquid 200 in the container 100A. Therefore, according to this embodiment, the effect similar to 1st Embodiment by having assembled battery 1 immersed in the insulating liquid 200 as an example can be show
  • a plurality of containers 100 ⁇ / b> B are provided.
  • the plurality of containers 100B have a three-dimensional (three-dimensional) arrangement (FIG. 10) in which two-dimensional (two-dimensional) arrangements (FIG. 11) are stacked. Therefore, the storage battery device A includes a plurality of containers 100B stacked on each other.
  • a liquid 200 is placed in each container 100B.
  • the assembled battery 1 is provided with two or more, and is put in each container 100B. That is, the liquid 200 and the assembled battery 1 are placed in each container 100B.
  • the plurality of assembled batteries 1 are connected in series or in parallel.
  • the container 100B has a substantially rectangular parallelepiped appearance as shown in FIGS.
  • the container 100B has a plurality of wall portions (walls) such as a bottom wall 100a, a side wall 100b, and an end wall 100c.
  • the container 100B is open upward.
  • a chamber 100e is formed inside the container 100B.
  • a liquid 200 is placed in the container 100B (chamber 100e).
  • the opening part 100q is provided in one side wall 100b of the container 100B, and the inside of the container 100B where the side walls 100b face each other is communicated with the opening part 100q.
  • the assembled battery 1 is placed on the bottom wall 100a as the bottom of the container 100B.
  • the assembled battery 1 is mounted (fixed) to the bottom wall 100a with a fixing tool (such as a screw) (not shown), an adhesive, or the like while being placed on the bottom wall 100a.
  • the assembled battery 1 is placed on a convex portion 100a1 provided on the bottom wall 100a.
  • the buffer material 135 is provided between the adjacent assembled batteries 1, and between the assembled battery 1 and the side wall 100b.
  • the assembled battery 1 is immersed in the insulating liquid 200 in the container 100B. Therefore, according to this embodiment, the effect similar to 1st Embodiment by having assembled battery 1 immersed in the insulating liquid 200 as an example can be show
  • the battery unit 400 is housed in the housing body 100 ⁇ / b> C.
  • a liquid 200 is placed in each container 100C.
  • the battery unit 400 is immersed in the liquid 200 in the container 100C.
  • the container 100C has a substantially rectangular parallelepiped appearance as shown in FIG.
  • the container 100C includes a plurality of wall portions (walls) such as a bottom wall 100a, a side wall 100b, and an end wall 100c.
  • the container 100C is open upward.
  • a chamber 100e is formed inside the container 100C.
  • a liquid 200 (see FIG. 13) is placed in the container 100C (chamber 100e).
  • the battery unit 400 includes a plurality of assembled batteries 1 and a frame 401 holding the plurality of assembled batteries 1 as shown in FIG.
  • the assembled battery 1 has a three-dimensional (three-dimensional) arrangement in which two-dimensional (two-dimensional) arrangements are stacked.
  • the plurality of assembled batteries 1 are immersed in the liquid 200 in the container 100C.
  • the assembled battery 1 is fixed to the frame 401 with the monitoring device 33 facing upward.
  • At least some of the plurality of wirings 402 (connection members) connected to the electrode parts (positive electrode part 31 and negative electrode part 32) of the assembled battery 1 are provided so as to extend in the vertical direction.
  • the frame 401 includes a plurality of upper and lower tray portions 401a on which the assembled battery 1 is placed, a fixing member 401b that fixes the assembled battery 1 to the tray portion 401a, and a rod-like connecting member 401c that connects the tray portions 401a to each other. ,have.
  • the tray portion 401a, the fixing member 401b, and the connecting member 401c are coupled (fixed) by a fixing tool (such as a screw) not shown, an adhesive, welding, or the like.
  • the frame 401 is made of a metal material or a synthetic resin material.
  • the assembled battery 1 (battery unit 400) is immersed in the insulating liquid 200 in the container 100C. Therefore, according to this embodiment, the effect similar to 1st Embodiment by having assembled battery 1 immersed in the insulating liquid 200 as an example can be show
  • the storage battery device A is provided with a circulation cooling unit 500 (circulation unit, cooling unit).
  • a circulation cooling unit 500 circulation unit, cooling unit
  • you may provide the circulation cooling part 500 in other embodiment and a modification. .
  • the circulation cooling unit 500 cools the liquid 200 that has flowed out (flowed out) from the container 100, and returns the cooled liquid 200 to the container 100.
  • the circulation cooling unit 500 includes a heat exchanger 503 (radiator) into which the liquid 200 flows (in / out), a fan 504 that generates wind used for cooling the liquid 200 in the heat exchanger 503, and the container 100 and heat.
  • a pump 502 that circulates the liquid 200 to and from the exchanger 503.
  • the fan 504 blows air toward the heat exchanger 503.
  • the fan 504 blows in a direction different from the container 100 side.
  • the pump 502 is driven by a motor (drive source).
  • the container 100, the pump 502, and the heat exchanger 503 are connected by a pipe 505.
  • a circulation channel 506 is configured by the container 100, the pump 502, the heat exchanger 503, and the pipe 505.
  • the pump 502 is positioned upstream of the heat exchanger 503 as an example.
  • the pump 502 may be located on the downstream side of the heat exchanger 503.
  • the pump 502 when the pump 502 operates, the liquid 200 flowing out from the container 100 passes through the heat exchanger 503 and is returned to the container 100 again.
  • the liquid 200 is cooled by taking heat away from the outside air in the process of passing through the heat exchanger 503. Therefore, the cooled liquid 200 is returned to the container 100, and the assembled battery 1 can be cooled more efficiently.
  • the pump 502 and the fan 504 may be started by a predetermined operation or may be constantly operating.
  • the circulation cooling unit 500 is provided with a breather valve 507 and a reservoir tank 508.
  • the breather valve 507 is connected to the circulation flow path 506 by a pipe 505, and the reservoir tank 508 is connected to the breather valve 507 by a pipe 505.
  • the reservoir tank 508 is connected to the container 100 by a flow path 510 (second flow path) and stores the liquid 200.
  • the flow path 510 includes a pipe 505, a breather valve 507, and a circulation flow path 506, and the liquid 200 can flow.
  • the breather valve 507 has a pressure valve and a vacuum valve, and performs intake and exhaust operations.
  • the breather valve 507 opens and discharges the liquid 200 in the circulation channel 506 to the reservoir tank 508 when the pressure in the circulation channel 506 (container 100) exceeds a first specified value.
  • the breather valve 507 opens to circulate the liquid 200 in the reservoir tank 508 when the pressure in the circulation flow path 506 (container 100) becomes equal to or lower than a second specified value that is lower than the first specified value. Release into the channel 506. Due to the operation of the breather valve 507, the fluctuation of the pressure in the circulation channel 506 (container 100) is suppressed.
  • the inspection unit 100 j and the closing member 104 are provided in the container 100 or the circulation channel 506.
  • the assembled battery 1 can be cooled more efficiently.
  • the circulation cooling unit 500 may apply (also serve as) a cooling system for an automobile engine.
  • the temperature measuring unit 520 measures the temperature of at least one of the inside of the container 100 (see FIG. 2) and the outside of the container 100. In the present embodiment, the temperature measurement unit 520 measures the temperature inside the container 100. As an example, the temperature measurement unit 520 measures the temperature around (in the vicinity of) the unit cell 3 inside the container 100. As an example, temperature measurement unit 520 includes a temperature sensor 521 (first temperature sensor, sensor) provided in assembled battery 1A. The temperature sensor 521 is provided corresponding to each unit cell 3. The temperature sensor 521 is accommodated in a recess 522 provided in the housing 2 or the unit cell 3 of the assembled battery 1A. In the present embodiment, the recess 522 is provided on the bottom wall 2 a of the housing 2 in correspondence with each unit cell 3. Each temperature sensor 521 measures the ambient temperature of the corresponding cell 3. Each temperature sensor 521 is connected to the monitoring device 33 via a wiring 525.
  • first temperature sensor, sensor provided in assembled battery 1A.
  • the temperature sensor 521 is provided corresponding to each unit cell 3.
  • the casing 2 of the present embodiment is not provided with the third member 23 and the fourth member 24 (see FIG. 4) as an example.
  • casing 2 are integrally molded as an example.
  • the monitoring device 33 is disposed facing the bus bar 26 that connects the electrode portions 3 a to each other, and is fixed to the housing 2.
  • FIG. 19 shows an example in which the number of single cells 3 is smaller than the number of single cells 3 in the first embodiment.
  • the temperature sensor 521 is connected to the CPU 51 via the monitoring device 33. Thereby, the detection result of each temperature sensor 521 is input to the CPU 51.
  • the CPU 51 is connected to the fan 504 described in the fifth embodiment and the motor 509 (drive source) that drives the pump 502.
  • the CPU 51 controls the drive of the fan 502, and controls the drive of the pump 502 by controlling the drive of the motor 509.
  • the CPU 51 executes the temperature control process by following the program.
  • the CPU 51 controls the circulation cooling unit 500 (the pump 502 and the fan 504) using the measurement result of the temperature measurement unit 520.
  • the CPU 51 first acquires the temperature of the assembled battery 1A (step S1). Specifically, the detection result of each temperature sensor 521 is received.
  • the CPU 51 determines whether the temperature of the assembled battery 1A is equal to or higher than a specified value (step S2).
  • the temperature of the assembled battery 1 ⁇ / b> A is an average value of the detected temperatures of the plurality of temperature sensors 521.
  • the temperature of the assembled battery 1A is, as another example, the highest temperature or the lowest temperature among the detected temperatures of the plurality of temperature sensors 521.
  • the CPU 51 acquires the temperature detected by the temperature sensor 521 as the temperature of the assembled battery 1A.
  • the CPU 51 determines that the temperature of the assembled battery 1A is equal to or higher than the specified value (Yes in step S2), the CPU 51 starts driving the pump 502 and the fan 504 to operate the pump 502 and the fan 504 (step S3). At this time, if the pump 502 and the fan 504 are already operating, the CPU 51 continues the operation of the pump 502 and the fan 504.
  • step S2 when the CPU 51 determines that the temperature of the assembled battery 1A is not higher than the specified value and lower than the specified value (No in step S2), the operation of the pump 502 and the fan 504 is stopped by stopping the driving of the pump 502 and the fan 504. Is stopped (step S4). At this time, when the pump 502 and the fan 504 are stopped, the CPU 51 maintains the stopped state of the pump 502 and the fan 504. The CPU 51 repeats the above processing every specified time.
  • the CPU 51 controls the circulation cooling unit 500 using the measurement result of the temperature measurement unit 520. Therefore, the temperature of the liquid 200 can be controlled by the CPU 51 to control the temperature of the assembled battery 1A.
  • the temperature measurement unit 520 measures the temperature inside the container 100, and when the measurement result of the temperature measurement unit 520 becomes equal to or higher than a specified value, the CPU 51 operates the circulation cooling unit 500. Therefore, when the measurement result of the temperature measurement unit 520 becomes equal to or greater than the specified value, the liquid 200 is cooled by the circulation cooling unit 500, and the assembled battery 1A can be further cooled.
  • the fan 504 may be constantly rotated. In this case, when the measurement result of the temperature measurement unit 520 becomes equal to or greater than the specified value, the CPU 51 starts driving the pump 502 and operates the pump 502.
  • the temperature sensor 521 is provided for each unit cell 3
  • the present invention is not limited to this.
  • the temperature sensor 521 may be provided for each assembled battery 1 ⁇ / b> A instead of each unit cell 3.
  • a recess 522 is provided in each single cell 3.
  • the recess 522 is provided on the outer surface 3d of the housing 3b as an example.
  • the temperature sensor 521 is accommodated in the recess 522 and is in contact with the unit cell 3.
  • the temperature sensor 521 of the temperature measurement unit 520 measures the temperature of the unit cell 3 (housing 3b) as the temperature inside the container 100.
  • the CPU 51 controls the circulation cooling unit 500 using the measurement result of the temperature measurement unit 520. Therefore, the temperature of the liquid 200 can be controlled by the CPU 51 to control the temperature of the assembled battery 1A.
  • ⁇ Seventh embodiment> The basic configuration of this embodiment is the same as that of the sixth embodiment. However, as shown in FIG. 23, the temperature sensor 521 of the temperature measurement unit 520 is disposed outside the assembled battery 1 inside the container 100. The provided points differ from the sixth embodiment. Moreover, the assembled battery 1 of 5th Embodiment is used for the assembled battery 1 of this embodiment.
  • the temperature measuring unit 520 measures the temperature inside the container 100.
  • the temperature measurement unit 520 measures the temperature of the liquid 200 around (in the vicinity of) the assembled battery 1 inside the container 100 using the temperature sensor 521.
  • the temperature sensor 521 is provided corresponding to each assembled battery 1.
  • the temperature sensor 521 is fixed to the attachment portion 108 as an example.
  • a temperature sensor 521 may be provided between the assembled batteries 1 to measure the temperature of the liquid 200 between the assembled batteries 1.
  • the temperature sensor 521 is connected to the CPU 51 without the monitoring device 33 as an example. Thereby, the detection result of each temperature sensor 521 is input to the CPU 51 without passing through the monitoring device 33.
  • the CPU 51 executes the temperature control process by following the program.
  • the CPU 51 controls the circulation cooling unit 500 (the pump 502 and the fan 504) using the measurement result of the temperature measurement unit 520.
  • the CPU 51 first acquires the temperature of the liquid 200 (step S1). Specifically, the detection result of each temperature sensor 521 is received.
  • the CPU 51 determines whether the temperature of the liquid 200 is equal to or higher than a specified value (step S2).
  • the temperature of the liquid 200 is, for example, an average value of detection temperatures of the plurality of temperature sensors 521. Further, as another example, the temperature of the liquid 200 is the highest temperature or the lowest temperature among the detected temperatures of the plurality of temperature sensors 521.
  • the CPU 51 acquires the temperature detected by the temperature sensor 521 as the temperature of the liquid 200.
  • the CPU 51 determines that the temperature of the liquid 200 is equal to or higher than the specified value (Yes in step S2)
  • the CPU 51 starts driving the pump 502 and the fan 504 to operate the pump 502 and the fan 504 (step S3).
  • the CPU 51 continues the operation of the pump 502 and the fan 504.
  • the CPU 51 determines that the temperature of the liquid 200 is not equal to or higher than the specified value (No in step S2)
  • the CPU 51 stops driving the pump 502 and the fan 504 and causes the pump 502 and the fan 504 to operate. Stop (step S4). At this time, when the pump 502 and the fan 504 are stopped, the CPU 51 maintains the stopped state of the pump 502 and the fan 504.
  • the CPU 51 repeats the above processing every specified time.
  • the CPU 51 controls the circulation cooling unit 500 using the measurement result of the temperature measurement unit 520. Therefore, according to this embodiment, the same effect as that of the sixth embodiment can be obtained.
  • the temperature measurement unit 520 includes a temperature sensor 521 (first temperature sensor) as well as a temperature sensor.
  • the point which has the sensor 523 (2nd temperature sensor) differs with respect to 7th Embodiment.
  • FIG. 26 shows an example in which the inspection unit 100j and the closing member 104 are provided in the container 100. However, the inspection unit 100j and the closing member 104 may be provided in the circulation channel 506. Good.
  • the temperature sensor 523 is provided outside the container 100 and measures the temperature (environment temperature) outside the container 100 as shown in FIG.
  • the temperature sensor 523 is fixed to an arm portion 100r (support portion) that protrudes from the side wall 100b of the container 100.
  • the temperature measurement unit 520 measures the temperature inside the container 100 and the temperature outside the container 100.
  • the temperature inside the container 100 is measured by the temperature sensor 521, and the temperature outside the container 100 is measured by the temperature sensor 523.
  • the temperature of the liquid 200 inside the container 100 is measured by the temperature sensor 521 as the temperature inside the container 100.
  • the temperature sensor 521 the temperature sensor 521 of the sixth embodiment or its modification may be used.
  • the temperature sensor 523 is connected to the CPU 51 as shown in FIG. Thereby, the detection result of the temperature sensor 523 is input to the CPU 51.
  • FIG. 28 shows an example of how the outside air temperature T2 changes during the temperature control process and how the temperature T1 of the liquid 200 changes.
  • a temperature T1 of the liquid 200 indicated by a broken line in FIG. 28 indicates a temperature when the circulation cooling unit 500 malfunctions.
  • a temperature T1 of the liquid 200 indicated by a solid line in FIG. Shows the temperature when operating normally.
  • the temperature T1 of the liquid 200 rises compared to when the circulating cooling unit 500 operates normally.
  • the temperature control process is performed using the temperature T1 of the liquid 200 (the temperature inside the container 100) and the outside air temperature T2 (the temperature outside the container 100), so that the circulating cooling unit 500. The quality of the operation can be determined.
  • the quality of the operation of the circulation cooling unit 500 is determined based on whether or not a value ⁇ obtained by subtracting the outside air temperature T2 from the temperature T1 of the liquid 200 is equal to or greater than a specified value ⁇ .
  • a value ⁇ obtained by subtracting the outside air temperature T2 from the temperature T1 of the liquid 200 is equal to or greater than a specified value ⁇ .
  • the CPU 51 first drives the circulation cooling unit 500 (pump 502 and fan 504) to operate the circulation cooling unit 500 (pump 502 and fan 504) (steps). S11).
  • the CPU 51 acquires the temperature T1 and the outside air temperature T2 of the liquid 200 (step S12). Specifically, the detection results of the temperature sensors 521 and 523 are received. Next, the CPU 51 determines whether or not the temperature T1 of the liquid 200 (the temperature inside the container 100) is higher than the specified value ⁇ with respect to the outside air temperature T2 (the temperature outside the container 100) (step S13). That is, the CPU 51 determines whether T1 ⁇ T2 ⁇ ⁇ .
  • the temperature of the liquid 200 is, for example, an average value of detection temperatures of the plurality of temperature sensors 521. Further, as another example, the temperature of the liquid 200 is the highest temperature or the lowest temperature among the detected temperatures of the plurality of temperature sensors 521.
  • the CPU 51 acquires the temperature detected by the temperature sensor 521 as the temperature of the liquid 200.
  • the CPU 51 determines that the temperature T1 of the liquid 200 (the temperature inside the container 100) is not higher than the specified value ⁇ with respect to the outside air temperature T2 (the temperature outside the container 100) (No in step S13)
  • the operation of circulating cooling unit 500 (pump 502 and fan 504) is continued, and the process returns to step S12.
  • the CPU 51 determines that the temperature T1 of the liquid 200 (the temperature inside the container 100) is higher than the outside air temperature T2 (the temperature outside the container 100) by a predetermined value ⁇ or more (Yes in step S13).
  • the operation of circulation cooling unit 500 (pump 502 and fan 504) is stopped (step S14).
  • the CPU 51 causes the notification unit 132 to notify that an operation failure (error) of the circulation cooling unit 500 has occurred.
  • the CPU 51 uses the measured temperature T1 of the liquid 200 (temperature inside the container 100) and the outside air temperature T2 (temperature outside the container 100) to circulate and cool the cooling unit. 500 is controlled. Therefore, the malfunction of the circulating cooling unit 500 can be determined satisfactorily.
  • the assembled batteries 1 and 1A can be cooled more efficiently as an example.
  • the example of the assembled batteries 1 and 1A has been described as the battery immersed in the liquid 200 in the housing 2, but the present invention is not limited to this.
  • the single battery 3 may be used as the battery immersed in the liquid 200 in the housing 2, for example, the single battery 3 may be used.

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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)
  • Aviation & Aerospace Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

Selon un mode de réalisation de l'invention, un dispositif d'accumulateur est équipé d'un corps d'admission et d'une batterie. Ledit corps d'admission est rempli d'un liquide doté de propriétés isolantes. Ladite batterie est immergée dans ledit liquide à l'intérieur dudit corps d'admission.
PCT/JP2013/061773 2012-09-04 2013-04-22 Dispositif d'accumulateur WO2014038240A1 (fr)

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JP2012194404A JP2014049424A (ja) 2012-09-04 2012-09-04 蓄電池装置
JP2012-194404 2012-09-04

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WO2014038240A1 true WO2014038240A1 (fr) 2014-03-13

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CN111640891A (zh) * 2020-06-03 2020-09-08 中国电力科学研究院有限公司 一种锂离子电池装置及其制备方法
JP2022067208A (ja) * 2020-10-20 2022-05-06 プライムプラネットエナジー＆ソリューションズ株式会社 蓄電装置
DE102022107399A1 (de) 2022-03-29 2023-10-05 Bayerische Motoren Werke Aktiengesellschaft Antriebsbatterie mit hängend getragenem Zwischenboden sowie Kraftfahrzeug mit solch einer Antriebsbatterie

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DE102015221617A1 (de) * 2015-11-04 2017-05-04 Robert Bosch Gmbh Vorrichtung mit einem Gehäuse und einer Batterie
PL3349268T3 (pl) * 2016-03-03 2020-05-18 Lg Chem, Ltd. Zespół ogniw posiadający człon miękkiej podkładki
JP6996932B2 (ja) * 2017-10-20 2022-02-03 矢崎総業株式会社 電池パック
CN114144929A (zh) * 2019-04-15 2022-03-04 罗伯特·博世有限公司 具有压力管理系统的电池包
US20220158295A1 (en) * 2019-04-15 2022-05-19 Mark Kotik Battery Pack with a Pressure Management System including a Compensating Device
JP2021077571A (ja) * 2019-11-12 2021-05-20 株式会社デンソー 電池パック
WO2022116906A1 (fr) * 2020-12-04 2022-06-09 Sino-Australia Power Storage Technology (Xi'an) Co, Ltd Récipient pour stocker une batterie au lithium-ion et système de production comprenant celui-ci *
CN112786997A (zh) * 2021-01-28 2021-05-11 南京航空航天大学 一种基于浸没式沸腾传热的动力电池组热管理系统
CN113067058B (zh) * 2021-03-24 2022-09-30 安徽相成新能源科技有限公司 一种软包电池热管理系统及其操作方法

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Publication number Priority date Publication date Assignee Title
CN111640891A (zh) * 2020-06-03 2020-09-08 中国电力科学研究院有限公司 一种锂离子电池装置及其制备方法
JP2022067208A (ja) * 2020-10-20 2022-05-06 プライムプラネットエナジー＆ソリューションズ株式会社 蓄電装置
JP7249979B2 (ja) 2020-10-20 2023-03-31 プライムプラネットエナジー＆ソリューションズ株式会社 蓄電装置
DE102022107399A1 (de) 2022-03-29 2023-10-05 Bayerische Motoren Werke Aktiengesellschaft Antriebsbatterie mit hängend getragenem Zwischenboden sowie Kraftfahrzeug mit solch einer Antriebsbatterie

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