WO2016067487A1 - Power supply device - Google Patents

Power supply device Download PDF

Info

Publication number
WO2016067487A1
WO2016067487A1 PCT/JP2015/003364 JP2015003364W WO2016067487A1 WO 2016067487 A1 WO2016067487 A1 WO 2016067487A1 JP 2015003364 W JP2015003364 W JP 2015003364W WO 2016067487 A1 WO2016067487 A1 WO 2016067487A1
Authority
WO
WIPO (PCT)
Prior art keywords
case
power supply
battery
pair
supply device
Prior art date
Application number
PCT/JP2015/003364
Other languages
French (fr)
Japanese (ja)
Inventor
達人 堀内
新吾 越智
橋本　裕之
Original Assignee
三洋電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Publication of WO2016067487A1 publication Critical patent/WO2016067487A1/en

Links

Images

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
    • 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
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/227—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals 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
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
    • 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
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • 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 power supply device.
  • a power supply device that is used in a power storage system combined with a power generation device such as a solar cell and stores power generated by the power generation device is also known.
  • a chargeable / dischargeable secondary battery such as a lithium ion battery or a nickel metal hydride battery is used.
  • a power supply device including a battery module configured to store a plurality of battery cells in a case formed of a pair of case bodies.
  • This type of power supply device includes a battery cell having a wide surface.
  • the plurality of battery cells are arranged so that their wide surfaces are parallel to each other to form an assembled battery.
  • the case body has an open structure in which at least one surface is open, and the assembled battery can be inserted from the open surface. After the assembled battery is inserted into one case body, the other battery case is disposed so as to close the open surface of the one case body to hold the assembled battery.
  • the power supply device of the following patent document is provided with a fixing portion on one of the pair of case bodies, and the case body on which the fixing portion is provided is placed and fixed on the placement surface.
  • the assembled battery can be stored in the case.
  • the battery cell expands due to charging / discharging and deterioration.
  • the battery cell is accommodated inside the case, so that the battery cell dimensional change can be absorbed and the battery module dimensional change can be absorbed. Can be suppressed.
  • the case body positioned above the placement surface is not directly fixed to the placement surface, so that a relatively strong impact is applied to the power supply device.
  • the case may be damaged or the case body located above may be detached.
  • the present invention has been made in view of such a situation, and a main object thereof is a battery module having a configuration in which a plurality of battery cells are housed in a case formed of a pair of case bodies, and has high strength against vibration. It is providing a power supply device provided with the battery module of a structure.
  • the power supply device of the present invention includes a plurality of battery cells and a case including a pair of case bodies arranged adjacent to the placement surface.
  • the pair of case bodies are connected to each other to form a storage space for storing a plurality of battery cells between the pair of case bodies.
  • Each case body includes a fixing portion for fixing the case body to the placement surface.
  • each case body can be firmly fixed while a configuration including a plurality of battery cells is accommodated in a case including a pair of case bodies, thereby suppressing a dimensional change of the battery module.
  • the strength against vibration can be improved.
  • the power supply device 1 is configured by connecting a plurality of battery modules 10 in accordance with performance required for the power supply device 1. If the power supply device has a relatively low output, the power supply device 1 can be configured by one battery module 10. A specific configuration of the battery module 10 is illustrated in FIG.
  • the battery module 10 shown in FIG. 1 has a flat rectangular parallelepiped-shaped resin case 30 and a plurality of battery cells 21 housed inside the resin case 30.
  • the resin case 30 has a storage space for storing a plurality of battery cells 21 therein, and the plurality of battery cells 21 can be stored in the storage space.
  • the resin case 30 is formed by connecting a pair of case bodies 31, and a plurality of battery cells 21 are accommodated between the pair of case bodies 31.
  • the “case” includes not only a box-shaped container but also various shapes such as a frame and a holding body, and a storage member in which a plurality of battery cells 21 are stored. Shall point to.
  • Each of the pair of case bodies 31 is provided with an external terminal portion 32.
  • the external terminal portion 32 provided in each case body 31 is electrically connected to the plurality of battery cells 21 housed in the resin case 30. With this configuration, the power of the battery module 10 can be output or a plurality of battery modules 10 can be connected via the pair of external terminal portions 32.
  • the pair of external terminal portions 32 are provided on one surface of a resin case 30. Specifically, the pair of external terminal portions 32 are arranged on the rectangular side surface of the resin case 30 so as to be aligned in the diagonal direction of the rectangular shape. In other words, the battery module 10 of FIG. 1 has a configuration in which the pair of external terminal portions 32 are disposed in the vicinity of the rectangular diagonal line on the rectangular side surface of the resin case 30.
  • the battery cell 21 is a chargeable / dischargeable secondary battery. Specifically, a secondary battery such as a lithium ion battery or a nickel metal hydride battery can be used.
  • 2 and 3 are diagrams for explaining a specific configuration of the battery cell 21 described above, and a pouch battery is illustrated as a representative configuration.
  • the battery cell 21 in FIGS. 2 and 3 includes an exterior body 22 formed of a deformable laminate film, a power generation element sealed in the exterior body 22, and an electrode tab 23 connected to the power generation element.
  • the power generation element includes an electrode body and an electrolytic solution.
  • the electrode tab 23 is an output terminal of the battery cell 21 and is led out from the inside of the exterior body 22 to the outside of the exterior body 22.
  • This type of battery cell 21 is known to have a flat wound electrode body or a laminated electrode body as an electrode body.
  • the wound electrode body is an electrode body formed in a flat shape by winding a positive electrode plate and a negative electrode plate through a separator, and then pressing them.
  • the laminated electrode body is an electrode body formed by laminating a sheet-like positive electrode plate and a negative electrode plate via a separator.
  • the structure of an electrode body should just be able to enclose a power generation element in the exterior body 22, and does not necessarily need to be restricted to the above-mentioned structure.
  • the laminate film is a sheet-like metal / resin composite film having a five-layer structure of resin layer (polypropylene) / adhesive layer / aluminum alloy layer / adhesive layer / resin layer (polypropylene).
  • the exterior body 22 is formed of this laminate film, and has an electrode body storage space therein.
  • the battery cell 21 illustrated in FIG. 2 and FIG. 3 has an electrode body arranged on a single laminate film, folded the laminate film, and laminated laminate films other than the folded sides. It is formed by heat welding. 2 has a pair of electrode tabs extending from one side of the outer package 22 when the laminate film is thermally welded. In the battery cell of FIG. 3, one electrode tab of the pair of electrode tabs is extended from each of the two sides located at both ends of the exterior body 22 when the laminate film is thermally welded.
  • the battery cell 21 having the above configuration is formed in a thick flat plate shape and has a pair of wide surfaces with a larger area than the other surfaces. Moreover, since the exterior body 22 is comprised with a laminate film, the exterior body 22 can be insulated with respect to the electric power generation element enclosed inside, forming the exterior body 22 with a metal. On the other hand, since the laminate film is deformed relatively easily by an external force, the shape stability is low. A pouch battery has few constituent members constituting a battery cell. Therefore, the battery cell 21 having the above-described configuration has a feature that the outer shape can be reduced although the stability of the shape is low.
  • a unit module includes a plurality of battery cells 21 and a pair of holding plates 24 surrounding the outer periphery in a state where the plurality of battery cells 21 are stacked. 20 and the unit module 20 is effectively housed in a resin case 30.
  • the battery module 10 has a configuration in which a plurality of unit modules 20 are disposed between a pair of case bodies 31.
  • the pair of case bodies 31 hold the plurality of unit modules 20, whereby the plurality of battery cells 21 are accommodated inside the resin case 30.
  • the plurality of battery cells 21 are stacked so that their wide surfaces are parallel to each other.
  • the pair of holding plates 24 are configured to be fitted to each other, and the plurality of battery cells 21 are disposed between the pair of holding plates 24.
  • the plurality of battery cells 21 arranged between the pair of holding plates 24 are held by pressing the wide surfaces of the battery cells by the holding plates 24 on both sides.
  • the pair of holding plates 24 are made of metal, and can improve the stability of the shape of the unit module 20.
  • the plurality of unit modules 20 are accommodated in a resin case 30 in a state of being arranged along the stacking direction of the battery cells 21, and the holding plates 24 of the plurality of unit modules 20 are provided. It is held by a pair of case bodies 31.
  • a plurality of battery cells 21 can be housed in the resin case 30 in a stable state.
  • each unit module 20 is arrange
  • the plurality of battery cells constituting the assembled battery 50 are in a state in which their wide surfaces are parallel to each other.
  • the dimension of the battery cells 21 in the stacking direction can be adjusted by the number of unit modules 20 or the number of battery cells 21 constituting the unit module 20.
  • each unit module 20 is not necessarily in the state of the assembled battery 50 alone. It is not necessary to provide a structure in which the relative position is fixed.
  • the assembled battery 50 has a substantially rectangular parallelepiped shape, and includes a pair of opposing surfaces located at both ends in the stacking direction of the battery cells and four side surfaces adjacent to the pair of opposing surfaces.
  • the electrode tab 23 of the battery cell 21 constituting the assembled battery 50 is located on at least one side surface of the assembled battery 50.
  • the electrode tab 23 of the battery cell 21 is located on one of the four side surfaces of the assembled battery as illustrated in FIG. 5.
  • the electrode tabs 23 of the battery cell 21 are positioned on a pair of opposing side surfaces of the four side surfaces of the assembled battery 50. To do.
  • adjacent battery cells 21 are arranged such that the electrode tabs 23 are close to each other.
  • the electrode tabs 23 of adjacent battery cells 21 are connected to each other, and a plurality of battery cells 21 are connected in series.
  • the electrode tabs 23 of the battery cells 21 constituting the assembled battery 50 have a relatively high voltage because the battery cells 21 are connected in series. Therefore, it is preferable that the electrode tab 23 is configured to prevent an unintended member from contacting the electrode tab 23.
  • the assembled battery 50 in the state of being housed in the resin case 30 has a peripheral edge of the assembled battery 50 so that an unintended member can be prevented from coming into contact with the electrode tab 23.
  • the structure is covered with a resin case 30.
  • the pair of case bodies 31 constituting the resin case 30 includes a base portion 33 having a plurality of partition walls 35 and a wall portion standing on the base portion 33. , Including.
  • the assembled battery 50 is disposed inside the resin case 30 so that the side surface on which the electrode tab 23 is located is covered with the wall portion of each case body 31.
  • the wall portion includes a cover portion 36 that covers the electrode tab 23 of the battery cell 21 housed in the resin case 30 and a pair of cutout portions 37 provided adjacent to the cover portion 36.
  • the notch part 37 provided in each case body 31 is provided in the mutually corresponding position, and if a pair of case bodies 31 are connected and the resin-made case 30 is formed, mutual notch part will be provided. By 37, an opening is formed.
  • the battery module 10 of FIG. 5 further includes a pair of connection conductors 40 for electrically connecting the pair of external terminal portions and the assembled battery 50.
  • Each of the pair of connection conductors 40 has one end inserted into one opening formed by the notch 37 and the other end connected to the corresponding external terminal portion 32.
  • the pair of connection conductors 40 extend along the surface of the cover portion 36 from the corresponding opening to the corresponding external terminal portion 32. With this configuration, the electrode tabs 23 of the battery cells 21 at both ends of the assembled battery 50 and the corresponding external terminal portions 32 can be electrically connected via the pair of connection conductors 40.
  • the cover part 36 can be interposed between the pair of connection conductors 40 and the electrode tabs 23 of the battery cells 21 inside the resin case 30, and the pair of connection conductors 40 and the respective connection conductors 40 are directly connected. The insulation distance with the electrode tab 23 of the some battery cell 21 which is not performed can be ensured.
  • the plurality of unit modules 20 are inserted between the partition walls 35 provided in the base portion 33 when arranged inside the resin case 30.
  • the plurality of unit modules 20 are held by the partition wall 35 in a state of being stacked in the stacking direction of the battery cells 21.
  • the partition wall 35 is configured to hold the plurality of unit modules 20 with a space therebetween, and a gap is formed between the adjacent unit modules 20. That is, the plurality of unit modules 20 are accommodated in the resin case 30 with a space (gap) between them.
  • the partition wall 35 may be configured to be provided only on one of the pair of case bodies 31.
  • a plurality of through holes 34 are formed in the base portion 33 of the pair of case bodies 31.
  • the through holes 34 formed in the pair of case bodies 31 are provided corresponding to the gaps formed between the unit modules.
  • the refrigerant is introduced from the through hole 34 provided in one case body 31 and discharged from the through hole 34 provided in the other case body 31, so The refrigerant flows through the formed gap. That is, the through holes 34 formed in the pair of case bodies 31 are an inlet and an outlet provided for introducing the refrigerant into the resin case 30, and are formed between the adjacent unit modules 20.
  • the gap is communicated with an inlet and an outlet provided in the resin case 30.
  • the battery cells 21 constituting the unit module 20 can be configured to be indirectly cooled by cooling the holding plate 24. If the adhesiveness between the holding plate 24 and the battery cell 21 is sufficient, the holding plate 24 is formed of metal, and therefore, the battery cell 21 can be efficiently cooled using its high heat transfer performance.
  • the battery module 10 has been described by taking a configuration including a pouch battery as an example.
  • the battery cell 21 used in the battery module 10 of the present invention is not necessarily a pouch battery.
  • a rectangular battery having a configuration in which a power generation element is enclosed in a box-shaped battery case may be used.
  • a prismatic battery has a structure in which an electrode body such as a wound electrode body or a laminated electrode body and an electrolytic solution are stored in a metal battery case with a bottomed rectangular parallelepiped and the upper surface is opened, and the upper surface is sealed with a sealing plate. It has been known. Such a battery cell is also formed into a shape having a pair of wide surfaces that are formed in a thick flat plate shape and have a larger area than the other surfaces. Since the exterior body 22 is formed of a metal battery case, the exterior body 22 comes into contact with the electrolyte sealed inside the exterior body 22, and the exterior body 22 has a potential. Moreover, since the exterior body 22 is formed of a strong metal battery case, deformation of the exterior body 22 can be suppressed. Therefore, the battery cell 21 having this configuration needs to insulate the exterior body 22 of the adjacent battery cell 21, but has a feature such as high shape stability.
  • the strength of the exterior body 22 is high due to the configuration of the rectangular battery, so that it is not always necessary to form a unit module.
  • a plurality of battery cells 21 may be arranged between the pair of case bodies 31, and a metal battery case of the battery cells 21 may be held by the pair of case bodies 31.
  • the resin case 30 includes a plurality of partition walls 35, and a gap is formed between adjacent battery cells 21, thereby preventing contact between adjacent battery cells 21.
  • the battery module 10 in FIG. 1 is placed on the placement surface of the fixing frame 60, and the wide surface of each battery cell 21 housed in the resin case 30 is placed on the placement surface. It arrange
  • the fixing portion 38 has a fixing through hole, and is fixed to the mounting surface of the fixing frame 60 on which the resin case 30 is mounted via a bolt inserted into the fixing through hole.
  • . 6 includes a bus bar 70 formed of a metal plate as a wiring for connecting the external terminal portions 32 of the adjacent battery modules 10 to each other.
  • the height of the power supply device may be restricted.
  • the power supply device in a power supply device used for in-vehicle use, the power supply device may be arranged at the bottom of the vehicle.
  • a power supply device having a relatively small size in the height direction is preferable so as not to compress the space in the vehicle.
  • the space-saving property of the power supply device is often regarded as important, and such a requirement becomes remarkable. .
  • the size in the height direction of the battery module 10 is limited by the size of the assembled battery in the stacking direction of the battery cells 21.
  • the size of the assembled battery 50 in the stacking direction of the battery cells 21 can be adjusted by the number of stacked battery cells 21, the size of the battery module 10 can also be adjusted by the same method.
  • both the pair of case bodies 31 constituting the case 30 are provided with fixing portions, and each case body 31 is firmly fixed to the fixing frame 60. be able to. Therefore, for example, even if a relatively strong impact is applied to the power supply device, the case 30 can be prevented from being damaged.
  • the battery module 10 having the above configuration is configured such that the external terminal portions 32 are provided in each of the pair of case bodies 31, the external terminal portions 32 are provided at both ends of the resin case 30 in the extending direction of the mounting surface. It becomes the structure which is located. Therefore, by arranging the plurality of battery modules 10 in the same posture, the external terminal portions 32 provided on the resin case 30 can be brought close to the external terminal portions 32 of the adjacent battery modules 10. With this configuration, the connection wiring between the battery modules 10 can be shortened. This is particularly effective when the connection between the battery modules 10 is constituted by a metal bus bar. Since the metal portion of the bus bar is exposed, it is possible to prevent unintended contact when the bus bar is as short as possible.
  • a bus bar is short similarly.
  • FIG. 7 shows a configuration of a power supply device 1 according to a modification.
  • the battery module 10 of FIG. 7 has a configuration in which a pair of external terminal portions 32 are provided close to the placement surface. Specifically, the external terminal portions 32 are provided so as to be arranged along a direction parallel to the placement surface. In this configuration, the distance between the external terminal portions 32 of adjacent battery modules 10 can be made shorter than the configuration of the battery module 10 in FIG.
  • the power supply device 1 having the above configuration is configured such that one of the pair of external terminal portions 32 is provided at a position away from the electrode tab 23 of the battery cell 21 to which the external terminal portion 32 is connected. Therefore, the length of the connection conductor 40 is longer than that of the battery module 10 of FIG.
  • the 8 and 9 further includes an insulating portion 80 provided in the cover portion 36.
  • the insulating portion 80 is fixed to the wall portions of the pair of case bodies 31 and has a configuration in which the connection conductor 40 is interposed between the cover portion 36 and the insulating portion 80.
  • the insulating portion 80 can cover at least a part of the pair of connection conductors 40 extending along the cover portion 36, and can prevent the connection conductor 40 from coming into contact with other conductive components.
  • This configuration is particularly suitable for a battery module having a configuration in which a conductive member such as a connection conductor 40 is disposed on the surface of a resin case 30 as illustrated in FIGS. 6 and 7.
  • the resin case 30 includes a gas vent hole 39 provided corresponding to the electrode tab 23 of the assembled battery 50 housed therein.
  • the electrode tab 23 of the assembled battery 50 needs to be configured to be partially covered with the resin case 30 in order to prevent inadvertent contact.
  • the sealing property of the space near the electrode tab 23 of the resin case 30 is enhanced.
  • the laminate film as the outer package 22 is configured to heat-seal and laminate two laminate films, but the strength of the lead-out portion of the electrode tab 23 is the weakest. Therefore, when the pouch battery becomes abnormal, gas may be generated from the vicinity of the electrode tab 23. In addition, in order to specify the location of gas generation, the strength of heat welding can be intentionally reduced.
  • the space in the vicinity of the electrode tab 23 of the assembled battery 50 is highly hermetically sealed, so that when the gas is generated, the resin case 30 may be damaged.
  • the resin case 30 is configured to include the gas vent holes 39 provided corresponding to the electrode tabs 23 of the assembled battery 50 accommodated therein. The airtightness of the space near the electrode tab 23 of the battery 50 can be reduced, and the resin case 30 can be prevented from being damaged.
  • a sealing material 90 is disposed between the holding plate 24 and the battery cell 21 so that the generated gas can be actively guided to the gas vent hole 39, and the region on the electrode tab 23 side and the central portion of the battery cell 21. It is preferable that the side area is partitioned. In this configuration, since the flow path of the generated gas is limited to the gas vent hole 39, the generated gas can be positively guided to the gas vent hole 39.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

In order to provide a technology of enhancing the strength of a power supply device against vibration, the power supply device according to an aspect of the present invention includes a plurality of battery cells, and a casing (30) including a pair of case bodies (31) which are arranged on a mount surface adjacent to each other. The pair of case bodies (31) are coupled together to form a housing space to house the plurality of battery cells between the pair of case bodies (31). Each case body (31) includes a fastening part (38) for fastening to the mount surface.

Description

電源装置Power supply
　本発明は、電源装置に関する。 The present invention relates to a power supply device.
　近年、ハイブリッドカーや電気自動車の動力用の電源として、複数の電池セルを備えた電源装置が搭載された電動車両が普及している。また、太陽電池等の発電装置と組み合わせた蓄電システムに用いられ、発電装置が発電した電力を蓄えるための電源装置なども知られている。これらの電源装置において、電池セルは、例えばリチウムイオン電池やニッケル水素電池など、充放電可能な二次電池が使用される。 In recent years, an electric vehicle equipped with a power supply device having a plurality of battery cells has become widespread as a power source for driving hybrid cars and electric vehicles. In addition, a power supply device that is used in a power storage system combined with a power generation device such as a solar cell and stores power generated by the power generation device is also known. In these power supply apparatuses, as the battery cell, a chargeable / dischargeable secondary battery such as a lithium ion battery or a nickel metal hydride battery is used.
　下記特許文献に開示されるように、一対のケース体からなるケースに複数の電池セルを収納する構成の電池モジュールを備えた電源装置が知られている。この種の電源装置は、幅広面を有する電池セルを備えている。複数の電池セルは、互いの幅広面が平行な状態となるように配置して組電池を形成する。ケース体は、少なくとも一面を開放した開放構造となっており、開放された一面から組電池を挿入できるようになっている。組電池は、一方のケース体に挿入した後、他方のケース体で一方のケース体の開放面を閉塞するように配置して組電池を挾持する。また、下記特許文献の電源装置は、一対のケース体のうち一方に固定部が設けられており、固定部が設けられたほうのケース体を載置面に載置して固定される。 As disclosed in the following patent documents, a power supply device including a battery module configured to store a plurality of battery cells in a case formed of a pair of case bodies is known. This type of power supply device includes a battery cell having a wide surface. The plurality of battery cells are arranged so that their wide surfaces are parallel to each other to form an assembled battery. The case body has an open structure in which at least one surface is open, and the assembled battery can be inserted from the open surface. After the assembled battery is inserted into one case body, the other battery case is disposed so as to close the open surface of the one case body to hold the assembled battery. Moreover, the power supply device of the following patent document is provided with a fixing portion on one of the pair of case bodies, and the case body on which the fixing portion is provided is placed and fixed on the placement surface.
　以上の構成により、組電池をケースに収納することができるようになっている。電池セルは、充放電や劣化によって膨張するが、この構成の電源装置では、ケースの内部に電池セルが収納されるため、電池セルの寸法変化を吸収することができ、電池モジュールの寸法変化を抑制することができる。 With the above configuration, the assembled battery can be stored in the case. The battery cell expands due to charging / discharging and deterioration. However, in the power supply device having this configuration, the battery cell is accommodated inside the case, so that the battery cell dimensional change can be absorbed and the battery module dimensional change can be absorbed. Can be suppressed.
特表２０１４－５１９１５３号公報Special table 2014-519153
　しかしながら、上述の電源装置の構成において、載置面に対して上方に位置するケース体は、載置面に対して直接固定されるわけではないので、電源装置に比較的強い衝撃が加わった際に、ケースが破損したり、上方に位置するケース体が外れたりするおそれがあった。 However, in the configuration of the power supply device described above, the case body positioned above the placement surface is not directly fixed to the placement surface, so that a relatively strong impact is applied to the power supply device. In addition, the case may be damaged or the case body located above may be detached.
　本願発明は、斯かる状況に鑑みてなされたものであり、その主な目的は、一対のケース体からなるケースに複数の電池セルを収納する構成の電池モジュールであって、振動に対する強度が高い構成の電池モジュールを備える電源装置を提供することにある。 The present invention has been made in view of such a situation, and a main object thereof is a battery module having a configuration in which a plurality of battery cells are housed in a case formed of a pair of case bodies, and has high strength against vibration. It is providing a power supply device provided with the battery module of a structure.
　本発明の電源装置は、複数の電池セルと、載置面に隣接して配置される一対のケース体を含むケースと、を備える。一対のケース体は、互いに連結されることで一対のケース体の間に複数の電池セルを収納するための収納空間が形成される。各々のケース体は、ケース体を載置面に固定するための固定部を含む。 The power supply device of the present invention includes a plurality of battery cells and a case including a pair of case bodies arranged adjacent to the placement surface. The pair of case bodies are connected to each other to form a storage space for storing a plurality of battery cells between the pair of case bodies. Each case body includes a fixing portion for fixing the case body to the placement surface.
　上述の電源装置の構成によると、一対のケース体を含むケースに複数の電池セルを収納する構成としながら、それぞれのケース体を強固に固定することができるので、電池モジュールの寸法変化を抑制しながら、振動に対する強度を向上させることができる。 According to the above-described configuration of the power supply device, each case body can be firmly fixed while a configuration including a plurality of battery cells is accommodated in a case including a pair of case bodies, thereby suppressing a dimensional change of the battery module. However, the strength against vibration can be improved.
本発明の実施形態における電源装置の斜視図である。It is a perspective view of the power supply device in the embodiment of the present invention. 本発明の実施形態における電池セルの一実施例を示す正面図である。It is a front view which shows one Example of the battery cell in embodiment of this invention. 本発明の実施形態における電池セルの他の実施例を示す正面図である。It is a front view which shows the other Example of the battery cell in embodiment of this invention. 本発明の実施形態におけるユニットモジュールの分解斜視図である。It is a disassembled perspective view of the unit module in the embodiment of the present invention. 図１の電池モジュールの分解斜視図である。It is a disassembled perspective view of the battery module of FIG. 複数の電池モジュールを接続した状態の電源装置の側面図である。It is a side view of the power supply device of the state which connected the some battery module. 複数の電池モジュールを接続した状態の電源装置の他の側面図である。It is another side view of the power supply device of the state which connected the some battery module. 本発明の実施形態における電池モジュールの他の実施例を示す斜視図である。It is a perspective view which shows the other Example of the battery module in embodiment of this invention. 図８に示す電池モジュールの水平方向における断面図である。It is sectional drawing in the horizontal direction of the battery module shown in FIG.
　本発明のある態様の電源装置１は、電源装置１として要求される性能に応じて、複数の電池モジュール１０を接続して構成される。なお、比較的低い出力の電源装置であれば、一つの電池モジュール１０で電源装置１を構成することもできる。電池モジュール１０の具体的な構成は、図１に例示される。 The power supply device 1 according to an aspect of the present invention is configured by connecting a plurality of battery modules 10 in accordance with performance required for the power supply device 1. If the power supply device has a relatively low output, the power supply device 1 can be configured by one battery module 10. A specific configuration of the battery module 10 is illustrated in FIG.
　図１に示す電池モジュール１０は、扁平な直方体形状の樹脂製のケース３０と、樹脂製のケース３０の内側に収納される複数の電池セル２１と、を有する。樹脂製のケース３０は、内部に複数の電池セル２１を収納するための収納空間を有しており、この収納空間に複数の電池セル２１が収納できるようになっている。具体的には、樹脂製のケース３０は、一対のケース体３１を連結して形成され、一対のケース体３１の間に複数の電池セル２１が収納されるようになっている。なお、本発明の実施の形態において「ケース」とは、箱形状の容器だけでなく、フレームや保持体等、さまざまな形状を含むものであり、複数の電池セル２１が収納される収納部材を指すものとする。 The battery module 10 shown in FIG. 1 has a flat rectangular parallelepiped-shaped resin case 30 and a plurality of battery cells 21 housed inside the resin case 30. The resin case 30 has a storage space for storing a plurality of battery cells 21 therein, and the plurality of battery cells 21 can be stored in the storage space. Specifically, the resin case 30 is formed by connecting a pair of case bodies 31, and a plurality of battery cells 21 are accommodated between the pair of case bodies 31. In the embodiment of the present invention, the “case” includes not only a box-shaped container but also various shapes such as a frame and a holding body, and a storage member in which a plurality of battery cells 21 are stored. Shall point to.
　一対のケース体３１には、それぞれ、外部端子部３２が設けられている。それぞれのケース体３１に設けられた外部端子部３２は、樹脂製のケース３０内に収納される複数の電池セル２１と電気的に接続される。この構成により、一対の外部端子部３２を介して、電池モジュール１０の電力を出力したり、複数の電池モジュール１０を接続したりすることができるようになっている。 Each of the pair of case bodies 31 is provided with an external terminal portion 32. The external terminal portion 32 provided in each case body 31 is electrically connected to the plurality of battery cells 21 housed in the resin case 30. With this configuration, the power of the battery module 10 can be output or a plurality of battery modules 10 can be connected via the pair of external terminal portions 32.
　図１に例示される電池モジュール１０において、一対の外部端子部３２は、樹脂製のケース３０の一面に設けられている。具体的には、一対の外部端子部３２は、樹脂製のケース３０の矩形状の側面において、この矩形状の対角方向に並ぶように配置されている。換言すると、図１の電池モジュール１０は、一対の外部端子部３２が、樹脂製のケース３０の矩形状の側面において、この矩形状の対角線上付近に配置される構成となる。 In the battery module 10 illustrated in FIG. 1, the pair of external terminal portions 32 are provided on one surface of a resin case 30. Specifically, the pair of external terminal portions 32 are arranged on the rectangular side surface of the resin case 30 so as to be aligned in the diagonal direction of the rectangular shape. In other words, the battery module 10 of FIG. 1 has a configuration in which the pair of external terminal portions 32 are disposed in the vicinity of the rectangular diagonal line on the rectangular side surface of the resin case 30.
　電池セル２１は、充放電可能な二次電池である。具体的には、リチウムイオン電池やニッケル水素電池等の二次電池を用いることができる。図２および図３は、上述の電池セル２１の具体的な構成を説明するための図であり、代表的な構成としてパウチ電池を例示している。図２および図３の電池セル２１は、変形可能なラミネートフィルムで形成される外装体２２と、外装体２２に封入される発電要素と、発電要素と接続される電極タブ２３と、で構成される。発電要素は、電極体や電解液などが含まれる。電極タブ２３は、電池セル２１の出力端子であり、外装体２２の内部から外装体２２の外部へ導出される。 The battery cell 21 is a chargeable / dischargeable secondary battery. Specifically, a secondary battery such as a lithium ion battery or a nickel metal hydride battery can be used. 2 and 3 are diagrams for explaining a specific configuration of the battery cell 21 described above, and a pouch battery is illustrated as a representative configuration. The battery cell 21 in FIGS. 2 and 3 includes an exterior body 22 formed of a deformable laminate film, a power generation element sealed in the exterior body 22, and an electrode tab 23 connected to the power generation element. The The power generation element includes an electrode body and an electrolytic solution. The electrode tab 23 is an output terminal of the battery cell 21 and is led out from the inside of the exterior body 22 to the outside of the exterior body 22.
　このタイプの電池セル２１は、電極体として、偏平状の巻回電極体や積層型電極体を備える構成が知られている。巻回電極体は、正極極板及び負極極板を、セパレータを介して巻回しこの後、プレスして偏平状に形成された電極体である。積層型電極体は、シート状の正極極板及び負極極板を、セパレータを介して積層して形成された電極体である。なお、電極体の構成は、発電要素を外装体２２に封入できればよく、必ずしも上述の構成に限る必要はない。 This type of battery cell 21 is known to have a flat wound electrode body or a laminated electrode body as an electrode body. The wound electrode body is an electrode body formed in a flat shape by winding a positive electrode plate and a negative electrode plate through a separator, and then pressing them. The laminated electrode body is an electrode body formed by laminating a sheet-like positive electrode plate and a negative electrode plate via a separator. In addition, the structure of an electrode body should just be able to enclose a power generation element in the exterior body 22, and does not necessarily need to be restricted to the above-mentioned structure.
　また、ラミネートフィルムは、樹脂層（ポリプロピレン）／接着剤層／アルミニウム合金層／接着材層／樹脂層（ポリプロピレン）の５層構造からなるシート状の金属と樹脂の複合フィルムである。外装体２２は、このラミネートフィルムで形成され、内部に電極体収納空間を有している。具体的には、図２および図３に例示する電池セル２１は、一枚のラミネートフィルムの上に電極体を配置し、ラミネートフィルムを折りたたみ、折り返した辺以外の辺において、重なったラミネートフィルムを熱溶着して形成される。なお、図２の電池セルは、ラミネートフィルムを熱溶着する際、外装体２２の一辺から、一対の電極タブを延出させている。また、図３の電池セルは、ラミネートフィルムを熱溶着する際、外装体２２の両端に位置する二辺から、それぞれ、一対の電極タブのうちの一つの電極タブを延出させている。 The laminate film is a sheet-like metal / resin composite film having a five-layer structure of resin layer (polypropylene) / adhesive layer / aluminum alloy layer / adhesive layer / resin layer (polypropylene). The exterior body 22 is formed of this laminate film, and has an electrode body storage space therein. Specifically, the battery cell 21 illustrated in FIG. 2 and FIG. 3 has an electrode body arranged on a single laminate film, folded the laminate film, and laminated laminate films other than the folded sides. It is formed by heat welding. 2 has a pair of electrode tabs extending from one side of the outer package 22 when the laminate film is thermally welded. In the battery cell of FIG. 3, one electrode tab of the pair of electrode tabs is extended from each of the two sides located at both ends of the exterior body 22 when the laminate film is thermally welded.
　以上の構成の電池セル２１は、厚みのある平板状に形成され、他の面より面積が広い一対の幅広面を備える形状となる。また、外装体２２がラミネートフィルムで構成されるため、外装体２２を金属で形成しながら、内部に封入される発電要素に対して、外装体２２を絶縁することができる。一方、ラミネートフィルムは、外力によって比較的容易に変形するため、形状の安定性が低い。パウチ電池は、電池セルを構成する構成部材が少ない。そのため、以上の構成の電池セル２１は、形状の安定性が低いが、外形を小さくできるなどの特徴がある。 The battery cell 21 having the above configuration is formed in a thick flat plate shape and has a pair of wide surfaces with a larger area than the other surfaces. Moreover, since the exterior body 22 is comprised with a laminate film, the exterior body 22 can be insulated with respect to the electric power generation element enclosed inside, forming the exterior body 22 with a metal. On the other hand, since the laminate film is deformed relatively easily by an external force, the shape stability is low. A pouch battery has few constituent members constituting a battery cell. Therefore, the battery cell 21 having the above-described configuration has a feature that the outer shape can be reduced although the stability of the shape is low.
　電池セル２１として、パウチ電池を採用する場合、上述の通り、外装体２２が比較的変形しやすいため、樹脂製のケース３０の内部に安定した状態で収納することが難しいという問題がある。斯かる問題を解決するためには、図４および図５に示すように、複数の電池セル２１と、複数の電池セル２１を積層した状態で外周を囲む一対の保持板２４とで、ユニットモジュール２０を構成し、このユニットモジュール２０を樹脂製のケース３０に収納する構成とすることが有効である。 When a pouch battery is employed as the battery cell 21, the exterior body 22 is relatively easily deformed as described above, so that there is a problem that it is difficult to stably store the battery body 21 inside the resin case 30. In order to solve such a problem, as shown in FIG. 4 and FIG. 5, a unit module includes a plurality of battery cells 21 and a pair of holding plates 24 surrounding the outer periphery in a state where the plurality of battery cells 21 are stacked. 20 and the unit module 20 is effectively housed in a resin case 30.
　図４および図５に示すように、本発明のある態様の電源装置１において、電池モジュール１０は、一対のケース体３１の間に、複数のユニットモジュール２０が配置される構成となっている。この構成では、一対のケース体３１が、複数のユニットモジュール２０を保持することで、樹脂製のケース３０の内部に複数の電池セル２１が収納される。 As shown in FIGS. 4 and 5, in the power supply device 1 according to an aspect of the present invention, the battery module 10 has a configuration in which a plurality of unit modules 20 are disposed between a pair of case bodies 31. In this configuration, the pair of case bodies 31 hold the plurality of unit modules 20, whereby the plurality of battery cells 21 are accommodated inside the resin case 30.
　図４に示すユニットモジュール２０において、複数の電池セル２１は、互いの幅広面が平行な状態となるように積層される。一対の保持板２４は、互いに嵌合するように構成され、一対の保持板２４の間に複数の電池セル２１が配置される。一対の保持板２４の間に配置された複数の電池セル２１は、両側の保持板２４によって電池セルの幅広面が押圧されて挾持される。一対の保持板２４は、金属で形成されており、ユニットモジュール２０の形状の安定性を高めることができるようになっている。 In the unit module 20 shown in FIG. 4, the plurality of battery cells 21 are stacked so that their wide surfaces are parallel to each other. The pair of holding plates 24 are configured to be fitted to each other, and the plurality of battery cells 21 are disposed between the pair of holding plates 24. The plurality of battery cells 21 arranged between the pair of holding plates 24 are held by pressing the wide surfaces of the battery cells by the holding plates 24 on both sides. The pair of holding plates 24 are made of metal, and can improve the stability of the shape of the unit module 20.
　図５に示す電池モジュール１０において、複数のユニットモジュール２０は、電池セル２１の積層方向に沿って配置した状態で、樹脂製のケース３０内に収納され、複数のユニットモジュール２０の保持板２４が一対のケース体３１で挾持される。この構成により、電池セル２１としてパウチ電池を採用した場合であっても、安定した状態で樹脂製のケース３０の内部に複数の電池セル２１を収納することができる。また、各々のユニットモジュール２０は同一の姿勢で配置され、隣接するユニットモジュール２０が直列に接続される。この構成により、複数のユニットモジュール２０は、外形が略直方体形状の組電池５０を形成する。組電池５０を構成する複数の電池セルは、互いの幅広面が平行な状態となる。以上の構成の組電池５０は、電池セル２１の積層方向の寸法をユニットモジュール２０の数、あるいは、ユニットモジュール２０を構成する電池セル２１の数によって調整することができる。なお、本発明の実施形態において、組電池５０を構成する複数のユニットモジュール２０は、樹脂製のケース３０によって保持される構成となるため、必ずしも組電池５０単体の状態で各々のユニットモジュール２０の相対位置が固定されるような構造を備える必要はない。 In the battery module 10 shown in FIG. 5, the plurality of unit modules 20 are accommodated in a resin case 30 in a state of being arranged along the stacking direction of the battery cells 21, and the holding plates 24 of the plurality of unit modules 20 are provided. It is held by a pair of case bodies 31. With this configuration, even when a pouch battery is employed as the battery cell 21, a plurality of battery cells 21 can be housed in the resin case 30 in a stable state. Moreover, each unit module 20 is arrange | positioned with the same attitude | position, and the adjacent unit module 20 is connected in series. With this configuration, the plurality of unit modules 20 form an assembled battery 50 whose outer shape is a substantially rectangular parallelepiped shape. The plurality of battery cells constituting the assembled battery 50 are in a state in which their wide surfaces are parallel to each other. In the assembled battery 50 having the above configuration, the dimension of the battery cells 21 in the stacking direction can be adjusted by the number of unit modules 20 or the number of battery cells 21 constituting the unit module 20. In the embodiment of the present invention, since the plurality of unit modules 20 constituting the assembled battery 50 are configured to be held by the resin case 30, each unit module 20 is not necessarily in the state of the assembled battery 50 alone. It is not necessary to provide a structure in which the relative position is fixed.
　上述の通り、組電池５０は、外形が略直方体形状となり、電池セルの積層方向の両端に位置する一対の対向面と、一対の対向面に隣接する４つの側面とで構成される。組電池５０を構成する電池セル２１の電極タブ２３は、組電池５０の少なくとも一つの側面に位置する。例えば、組電池５０を図２に例示した電池セル２１で構成する場合、図５に示すように、電池セル２１の電極タブ２３は、組電池の４つの側面のうちの１つの側面に位置する。また、図示はしないが、組電池５０を図３に例示した電池セル２１で構成する場合、電池セル２１の電極タブ２３は、組電池５０の４つの側面のうちの対向する一対の側面に位置する。さらに、隣接する電池セル２１は、互いの電極タブ２３が近接するように配置される。組電池５０において、隣接する電池セル２１の電極タブ２３同士が接続され、複数の電池セル２１が直列に接続される。組電池５０を構成する電池セル２１の電極タブ２３は、各々の電池セル２１が直列に接続されるため、比較的高電圧となる。そのため、この電極タブ２３に意図しない部材が接触することを防止できるように構成することが好ましい。 As described above, the assembled battery 50 has a substantially rectangular parallelepiped shape, and includes a pair of opposing surfaces located at both ends in the stacking direction of the battery cells and four side surfaces adjacent to the pair of opposing surfaces. The electrode tab 23 of the battery cell 21 constituting the assembled battery 50 is located on at least one side surface of the assembled battery 50. For example, when the assembled battery 50 is configured by the battery cell 21 illustrated in FIG. 2, the electrode tab 23 of the battery cell 21 is located on one of the four side surfaces of the assembled battery as illustrated in FIG. 5. . Although not shown, when the assembled battery 50 is configured by the battery cell 21 illustrated in FIG. 3, the electrode tabs 23 of the battery cell 21 are positioned on a pair of opposing side surfaces of the four side surfaces of the assembled battery 50. To do. Further, adjacent battery cells 21 are arranged such that the electrode tabs 23 are close to each other. In the assembled battery 50, the electrode tabs 23 of adjacent battery cells 21 are connected to each other, and a plurality of battery cells 21 are connected in series. The electrode tabs 23 of the battery cells 21 constituting the assembled battery 50 have a relatively high voltage because the battery cells 21 are connected in series. Therefore, it is preferable that the electrode tab 23 is configured to prevent an unintended member from contacting the electrode tab 23.
　本発明のある態様の電源装置１では、意図しない部材が電極タブ２３に接触することを防止できるように、樹脂製のケース３０に収納された状態の組電池５０は、組電池５０の周縁が樹脂製のケース３０に覆われる構成となっている。具体的には、図５に示すように、樹脂製のケース３０を構成する一対のケース体３１は、それぞれ、複数の仕切壁３５を有する基部３３と、基部３３に立設される壁部と、を含んでいる。組電池５０は、電極タブ２３が位置する側面をそれぞれのケース体３１の壁部で覆われるように、樹脂製のケース３０の内側に配置される。また、壁部は、樹脂製のケース３０の内部に収納された電池セル２１の電極タブ２３を覆うカバー部３６と、カバー部３６に隣接して設けられる一対の切り欠き部３７を含んでいる。なお、それぞれのケース体３１に設けられた切り欠き部３７は、互いに対応する位置に設けられており、一対のケース体３１を連結して樹脂製のケース３０を形成すると、互いの切り欠き部３７によって、開口部が形成されるようになっている。 In the power supply device 1 according to an aspect of the present invention, the assembled battery 50 in the state of being housed in the resin case 30 has a peripheral edge of the assembled battery 50 so that an unintended member can be prevented from coming into contact with the electrode tab 23. The structure is covered with a resin case 30. Specifically, as shown in FIG. 5, the pair of case bodies 31 constituting the resin case 30 includes a base portion 33 having a plurality of partition walls 35 and a wall portion standing on the base portion 33. , Including. The assembled battery 50 is disposed inside the resin case 30 so that the side surface on which the electrode tab 23 is located is covered with the wall portion of each case body 31. The wall portion includes a cover portion 36 that covers the electrode tab 23 of the battery cell 21 housed in the resin case 30 and a pair of cutout portions 37 provided adjacent to the cover portion 36. . In addition, the notch part 37 provided in each case body 31 is provided in the mutually corresponding position, and if a pair of case bodies 31 are connected and the resin-made case 30 is formed, mutual notch part will be provided. By 37, an opening is formed.
　図５の電池モジュール１０は、さらに、一対の外部端子部と組電池５０とを電気的に接続するための一対の接続導体４０を備える。一対の接続導体４０は、それぞれ、一端が切り欠き部３７によって形成される一方の開口部に挿入され、他端が対応する外部端子部３２に接続される。また、一対の接続導体４０は、それぞれ、対応する開口部から対応する外部端子部３２にかけて、カバー部３６の表面に沿って延在する。この構成により、一対の接続導体４０を介して、組電池５０の両端の電池セル２１の電極タブ２３と対応する外部端子部３２とを電気的に接続することができる。また、一対の接続導体４０と樹脂製のケース３０内部の電池セル２１の電極タブ２３との間にカバー部３６を介在させることができ、一対の接続導体４０とそれぞれの接続導体４０が直接接続されない複数の電池セル２１の電極タブ２３との絶縁距離を確保することができる。 The battery module 10 of FIG. 5 further includes a pair of connection conductors 40 for electrically connecting the pair of external terminal portions and the assembled battery 50. Each of the pair of connection conductors 40 has one end inserted into one opening formed by the notch 37 and the other end connected to the corresponding external terminal portion 32. The pair of connection conductors 40 extend along the surface of the cover portion 36 from the corresponding opening to the corresponding external terminal portion 32. With this configuration, the electrode tabs 23 of the battery cells 21 at both ends of the assembled battery 50 and the corresponding external terminal portions 32 can be electrically connected via the pair of connection conductors 40. Moreover, the cover part 36 can be interposed between the pair of connection conductors 40 and the electrode tabs 23 of the battery cells 21 inside the resin case 30, and the pair of connection conductors 40 and the respective connection conductors 40 are directly connected. The insulation distance with the electrode tab 23 of the some battery cell 21 which is not performed can be ensured.
　また、複数のユニットモジュール２０は、樹脂製のケース３０の内側に配置される際、基部３３に設けられた仕切壁３５の間に挿入される。複数のユニットモジュール２０は、仕切壁３５によって、電池セル２１の積層方向に積層した状態で保持される。また、仕切壁３５は、複数のユニットモジュール２０を、間隔をあけた状態で保持できるように構成されており、隣接するユニットモジュール２０の間に隙間が形成される。つまり、複数のユニットモジュール２０が、相互間に空間(隙間)を備える状態で、樹脂製のケース３０に収納される。なお、仕切壁３５は、一対のケース体３１のうちの一方にのみ設ける構成であってもよい。 The plurality of unit modules 20 are inserted between the partition walls 35 provided in the base portion 33 when arranged inside the resin case 30. The plurality of unit modules 20 are held by the partition wall 35 in a state of being stacked in the stacking direction of the battery cells 21. In addition, the partition wall 35 is configured to hold the plurality of unit modules 20 with a space therebetween, and a gap is formed between the adjacent unit modules 20. That is, the plurality of unit modules 20 are accommodated in the resin case 30 with a space (gap) between them. The partition wall 35 may be configured to be provided only on one of the pair of case bodies 31.
　図５に示すように、一対のケース体３１の基部３３には、複数の貫通孔３４が形成されている。一対のケース体３１に形成される貫通孔３４は、各々のユニットモジュールの間に形成された隙間に対応して設けられている。この構成により、一方のケース体３１に設けられた貫通孔３４から冷媒を導入し、他方のケース体３１に設けられた貫通孔３４から冷媒を排出することで、各々のユニットモジュール２０の間に形成された隙間に冷媒が流れるようになっている。つまり、一対のケース体３１に形成された貫通孔３４は、樹脂製のケース３０の内部に冷媒を導入するために設けられる流入口と流出口であり、隣接するユニットモジュール２０の間に形成された隙間が、樹脂製のケース３０に設けられた流入口と流出口に連通されるようになっている。 As shown in FIG. 5, a plurality of through holes 34 are formed in the base portion 33 of the pair of case bodies 31. The through holes 34 formed in the pair of case bodies 31 are provided corresponding to the gaps formed between the unit modules. With this configuration, the refrigerant is introduced from the through hole 34 provided in one case body 31 and discharged from the through hole 34 provided in the other case body 31, so The refrigerant flows through the formed gap. That is, the through holes 34 formed in the pair of case bodies 31 are an inlet and an outlet provided for introducing the refrigerant into the resin case 30, and are formed between the adjacent unit modules 20. The gap is communicated with an inlet and an outlet provided in the resin case 30.
　以上の構成では、隣接するユニットモジュール２０の間に形成された隙間にて、ユニットモジュール２０の一面が露出される構成となる。そのため、ユニットモジュール２０を構成する電池セル２１は、保持板２４が冷却されることで、間接的に冷却されるように構成することができる。保持板２４と電池セル２１との密着性が充分であれば、保持板２４が金属で形成されるため、その高い伝熱性能を利用して、効率よく電池セル２１を冷却することができる。 In the above configuration, one surface of the unit module 20 is exposed in the gap formed between the adjacent unit modules 20. Therefore, the battery cells 21 constituting the unit module 20 can be configured to be indirectly cooled by cooling the holding plate 24. If the adhesiveness between the holding plate 24 and the battery cell 21 is sufficient, the holding plate 24 is formed of metal, and therefore, the battery cell 21 can be efficiently cooled using its high heat transfer performance.
　なお、上述の記載では、パウチ電池を備える構成を例にして本発明のある態様の電池モジュール１０について説明したが、本発明の電池モジュール１０に用いられる電池セル２１は、必ずしもパウチ電池である必要はなく、箱形状の電池ケースに発電要素が封入される構成の角形電池などを用いることもできる。 In the above description, the battery module 10 according to an aspect of the present invention has been described by taking a configuration including a pouch battery as an example. However, the battery cell 21 used in the battery module 10 of the present invention is not necessarily a pouch battery. Alternatively, a rectangular battery having a configuration in which a power generation element is enclosed in a box-shaped battery case may be used.
　角形電池は、有底直方体で上面を開放した金属製の電池ケースに、巻回電極体や積層型電極体などの電極体と、電解液を収納し、上面を封口板で封止する構造などが知られている。このような電池セルも、厚みのある平板状に形成され、他の面より面積が広い一対の幅広面を備える形状となる。外装体２２が金属製の電池ケースで形成されるため、外装体２２の内部に封入される電解液と接触し、外装体２２は電位を有する。また、外装体２２が強固な金属製の電池ケースで形成されるため、外装体２２の変形を抑制することができる。そのため、この構成の電池セル２１は、隣接する電池セル２１の外装体２２を絶縁する必要があるが、形状の安定性が高いなどの特徴がある。 A prismatic battery has a structure in which an electrode body such as a wound electrode body or a laminated electrode body and an electrolytic solution are stored in a metal battery case with a bottomed rectangular parallelepiped and the upper surface is opened, and the upper surface is sealed with a sealing plate. It has been known. Such a battery cell is also formed into a shape having a pair of wide surfaces that are formed in a thick flat plate shape and have a larger area than the other surfaces. Since the exterior body 22 is formed of a metal battery case, the exterior body 22 comes into contact with the electrolyte sealed inside the exterior body 22, and the exterior body 22 has a potential. Moreover, since the exterior body 22 is formed of a strong metal battery case, deformation of the exterior body 22 can be suppressed. Therefore, the battery cell 21 having this configuration needs to insulate the exterior body 22 of the adjacent battery cell 21, but has a feature such as high shape stability.
　また、電池セル２１として、角形電池を採用する場合、上述の通り、角形電池の構成上、外装体２２の強度が高いため、必ずしもユニットモジュールを形成する必要はない。例えば、一対のケース体３１の間に、複数の電池セル２１を配置し、電池セル２１の金属製の電池ケースを一対のケース体３１で保持するように構成することもできる。なお、樹脂製のケース３０は、複数の仕切壁３５を備えており、隣接する電池セル２１の間に隙間が形成され、隣接する電池セル２１の接触を防止できる。 Further, when a rectangular battery is adopted as the battery cell 21, as described above, the strength of the exterior body 22 is high due to the configuration of the rectangular battery, so that it is not always necessary to form a unit module. For example, a plurality of battery cells 21 may be arranged between the pair of case bodies 31, and a metal battery case of the battery cells 21 may be held by the pair of case bodies 31. The resin case 30 includes a plurality of partition walls 35, and a gap is formed between adjacent battery cells 21, thereby preventing contact between adjacent battery cells 21.
　図６に示すように、図１の電池モジュール１０は、固定用フレーム６０の載置面に載置され、樹脂製のケース３０の内部に収納された各々の電池セル２１の幅広面が、載置面に対して平行な状態となるように、一対のケース体３１のそれぞれの一面を載置面に対向させる姿勢で配置される。この状態では、ケース体３１に設けられた仕切壁３５も、載置面に対して平行な状態となる。また、樹脂製のケース３０の四隅を固定できるように、一対のケース体３１のそれぞれに、複数の固定部３８が設けられている。固定部３８は、固定用貫通孔を有しており、固定用貫通孔に挿通されるボルトを介して、樹脂製のケース３０が載置される固定用フレーム６０の載置面に固定される。また、図６の電源装置は、隣接する電池モジュール１０の外部端子部３２同士を接続する配線として、金属板で形成されるバスバー７０を備えている。 As shown in FIG. 6, the battery module 10 in FIG. 1 is placed on the placement surface of the fixing frame 60, and the wide surface of each battery cell 21 housed in the resin case 30 is placed on the placement surface. It arrange | positions with the attitude | position which makes each one surface of a pair of case bodies 31 oppose a mounting surface so that it may be in a parallel state with respect to a mounting surface. In this state, the partition wall 35 provided in the case body 31 is also parallel to the placement surface. In addition, a plurality of fixing portions 38 are provided in each of the pair of case bodies 31 so that the four corners of the resin case 30 can be fixed. The fixing portion 38 has a fixing through hole, and is fixed to the mounting surface of the fixing frame 60 on which the resin case 30 is mounted via a bolt inserted into the fixing through hole. . 6 includes a bus bar 70 formed of a metal plate as a wiring for connecting the external terminal portions 32 of the adjacent battery modules 10 to each other.
　電源装置は、高さ方向の寸法が制約されることがあり、例えば、車載用途で使用される電源装置では、車両の底部に配置されることがある。このような構成の場合、車内の空間を圧迫しないように、高さ方向の寸法が比較的小さい電源装置が好ましい。特に、出力電圧が４８Ｖの電源装置など、比較的低出力の電源装置が搭載される小型の電動車両では、電源装置の省スペース性が重要視されることが多く、斯かる要求が顕著となる。本発明のある態様の電源装置の構成では、電池セル２１の積層方向における組電池の寸法によって電池モジュール１０の高さ方向の寸法が制限される。上述の通り、電池セル２１の積層方向における組電池５０の寸法は、電池セル２１の積層数によって調整することができるので、電池モジュール１０の寸法も同様の方法により調整することができる。 The height of the power supply device may be restricted. For example, in a power supply device used for in-vehicle use, the power supply device may be arranged at the bottom of the vehicle. In the case of such a configuration, a power supply device having a relatively small size in the height direction is preferable so as not to compress the space in the vehicle. In particular, in a small electric vehicle equipped with a power supply device with a relatively low output, such as a power supply device with an output voltage of 48 V, the space-saving property of the power supply device is often regarded as important, and such a requirement becomes remarkable. . In the configuration of the power supply device according to an aspect of the present invention, the size in the height direction of the battery module 10 is limited by the size of the assembled battery in the stacking direction of the battery cells 21. As described above, since the size of the assembled battery 50 in the stacking direction of the battery cells 21 can be adjusted by the number of stacked battery cells 21, the size of the battery module 10 can also be adjusted by the same method.
　また、本発明のある態様の電源装置の構成では、ケース３０を構成する一対のケース体３１の両方に固定部が設けられており、それぞれのケース体３１を固定用フレーム６０に強固に固定することができる。そのため、例えば、電源装置に比較的強い衝撃が加わったとしても、ケース３０が破損することを防止できるようになっている。 In the configuration of the power supply device according to an aspect of the present invention, both the pair of case bodies 31 constituting the case 30 are provided with fixing portions, and each case body 31 is firmly fixed to the fixing frame 60. be able to. Therefore, for example, even if a relatively strong impact is applied to the power supply device, the case 30 can be prevented from being damaged.
　以上の構成の電池モジュール１０は、一対のケース体３１のそれぞれに外部端子部３２が設けられる構成となるため、載置面の延在方向において樹脂製のケース３０の両端に外部端子部３２が位置する構成となる。そのため、複数の電池モジュール１０を同一の姿勢で並べて配置することで、樹脂製のケース３０に設けられた外部端子部３２を隣接する電池モジュール１０の外部端子部３２に近接させることができる。この構成により、電池モジュール１０間の接続の配線を短くすることができる。特に電池モジュール１０間の接続を金属製のバスバーで構成する場合に有効である。バスバーは金属部分が露出するため、可能な限り短いほうが、意図しない接触を防止することができる。また、バスバーの表面に絶縁塗料を塗布したり、絶縁部材で覆ったりする構成とすることもできるが、この場合も、構成を簡略化することができるので、同様にバスバーが短いほうが好ましい。 Since the battery module 10 having the above configuration is configured such that the external terminal portions 32 are provided in each of the pair of case bodies 31, the external terminal portions 32 are provided at both ends of the resin case 30 in the extending direction of the mounting surface. It becomes the structure which is located. Therefore, by arranging the plurality of battery modules 10 in the same posture, the external terminal portions 32 provided on the resin case 30 can be brought close to the external terminal portions 32 of the adjacent battery modules 10. With this configuration, the connection wiring between the battery modules 10 can be shortened. This is particularly effective when the connection between the battery modules 10 is constituted by a metal bus bar. Since the metal portion of the bus bar is exposed, it is possible to prevent unintended contact when the bus bar is as short as possible. Moreover, although it can also be set as the structure which apply | coats an insulating coating material to the surface of a bus bar, or covers with an insulating member, since a structure can be simplified also in this case, it is preferable that a bus bar is short similarly.
　図７は、変形例の電源装置１の構成を示している。図７の電池モジュール１０は、一対の外部端子部３２をともに、載置面に近接して設ける構成となっている。具体的には、載置面に対して平行な方向に沿って並ぶように外部端子部３２が設けられている。この構成では、隣接する電池モジュール１０の外部端子部３２の距離を図６の電池モジュール１０の構成よりもさらに短くすることができる。 FIG. 7 shows a configuration of a power supply device 1 according to a modification. The battery module 10 of FIG. 7 has a configuration in which a pair of external terminal portions 32 are provided close to the placement surface. Specifically, the external terminal portions 32 are provided so as to be arranged along a direction parallel to the placement surface. In this configuration, the distance between the external terminal portions 32 of adjacent battery modules 10 can be made shorter than the configuration of the battery module 10 in FIG.
　以上の構成の電源装置１は、一対の外部端子部３２のうちの一方が、外部端子部３２が接続される電池セル２１の電極タブ２３に対して遠ざかる位置に設けられる構成となる。そのため、接続導体４０の長さが図６の電池モジュール１０より長くなる。 The power supply device 1 having the above configuration is configured such that one of the pair of external terminal portions 32 is provided at a position away from the electrode tab 23 of the battery cell 21 to which the external terminal portion 32 is connected. Therefore, the length of the connection conductor 40 is longer than that of the battery module 10 of FIG.
　図８および図９に示す電源装置１は、さらに、カバー部３６に設けられる絶縁部８０を備えている。絶縁部８０は、一対のケース体３１の壁部に固定され、カバー部３６と絶縁部８０の間に、接続導体４０を介在させる構成となる。絶縁部８０によって、カバー部３６に沿って延在する一対の接続導体４０の少なくとも一部を覆うことができ、接続導体４０が他の導電性部品と接触することを防止することができる。この構成は、図６および図７に例示されるような、樹脂製のケース３０の表面に接続導体４０等の導電部材が配置される構成の電池モジュールに特に好適である。 8 and 9 further includes an insulating portion 80 provided in the cover portion 36. The power source device 1 shown in FIG. The insulating portion 80 is fixed to the wall portions of the pair of case bodies 31 and has a configuration in which the connection conductor 40 is interposed between the cover portion 36 and the insulating portion 80. The insulating portion 80 can cover at least a part of the pair of connection conductors 40 extending along the cover portion 36, and can prevent the connection conductor 40 from coming into contact with other conductive components. This configuration is particularly suitable for a battery module having a configuration in which a conductive member such as a connection conductor 40 is disposed on the surface of a resin case 30 as illustrated in FIGS. 6 and 7.
　また、図８および図９に示す電源装置１は、樹脂製のケース３０は、内部に収納される組電池５０の電極タブ２３に対応して設けられるガス抜き孔３９を備えている。上述の通り、本発明のある態様の電源装置において、組電池５０の電極タブ２３は、不用意な接触を防止するために、樹脂製のケース３０で部分的に覆うように構成する必要があるが、この構成のため、樹脂製のケース３０の電極タブ２３近傍の空間の密閉性が高まる。 8 and 9, the resin case 30 includes a gas vent hole 39 provided corresponding to the electrode tab 23 of the assembled battery 50 housed therein. As described above, in the power supply device according to an aspect of the present invention, the electrode tab 23 of the assembled battery 50 needs to be configured to be partially covered with the resin case 30 in order to prevent inadvertent contact. However, due to this configuration, the sealing property of the space near the electrode tab 23 of the resin case 30 is enhanced.
　一方、電池セル２１としてパウチ電池を採用する構成では、電池セル２１が異常な状態となった場合に、電池セル２１の内圧が上昇し、外装体２２内にガスが発生する。発生したガスの量が多くなると、外装体２２からガスが漏れ出す。パウチ電池の場合、上述の通り、外装体２２であるラミネートフィルムは、二枚のラミネートフィルムを熱溶着して封止する構成となるが、電極タブ２３の引き出し部分の強度が最も弱い。そのため、パウチ電池が異常状態となった場合は、電極タブ２３近傍からガスが発生することがある。なお、ガス発生の場所を特定するために、意図的に熱溶着の強度を弱くしておくこともできる。 On the other hand, in a configuration in which a pouch battery is used as the battery cell 21, when the battery cell 21 is in an abnormal state, the internal pressure of the battery cell 21 rises and gas is generated in the exterior body 22. When the amount of the generated gas increases, the gas leaks from the exterior body 22. In the case of a pouch battery, as described above, the laminate film as the outer package 22 is configured to heat-seal and laminate two laminate films, but the strength of the lead-out portion of the electrode tab 23 is the weakest. Therefore, when the pouch battery becomes abnormal, gas may be generated from the vicinity of the electrode tab 23. In addition, in order to specify the location of gas generation, the strength of heat welding can be intentionally reduced.
　上述の通り、組電池５０の電極タブ２３近傍の空間は、密閉性が高いため、ガスが発生した際、樹脂製のケース３０が破損するおそれがある。図８および図９の電源装置１では、樹脂製のケース３０は、内部に収納される組電池５０の電極タブ２３に対応して設けられるガス抜き孔３９を備える構成となっているため、組電池５０の電極タブ２３近傍の空間の密閉性を低下させることができ、樹脂製のケース３０の破損を防止することができる。また、発生したガスをガス抜き孔３９に積極的に誘導できるように、保持板２４と電池セル２１の間にシール材９０を配置し、電極タブ２３側の領域と、電池セル２１の中央部分側の領域とを区画する構成とすることが好ましい。この構成では、発生したガスの流路は、ガス抜き孔３９に限定されるため、発生したガスを積極的にガス抜き孔３９に誘導させることができる。 As described above, the space in the vicinity of the electrode tab 23 of the assembled battery 50 is highly hermetically sealed, so that when the gas is generated, the resin case 30 may be damaged. In the power supply device 1 shown in FIGS. 8 and 9, the resin case 30 is configured to include the gas vent holes 39 provided corresponding to the electrode tabs 23 of the assembled battery 50 accommodated therein. The airtightness of the space near the electrode tab 23 of the battery 50 can be reduced, and the resin case 30 can be prevented from being damaged. Further, a sealing material 90 is disposed between the holding plate 24 and the battery cell 21 so that the generated gas can be actively guided to the gas vent hole 39, and the region on the electrode tab 23 side and the central portion of the battery cell 21. It is preferable that the side area is partitioned. In this configuration, since the flow path of the generated gas is limited to the gas vent hole 39, the generated gas can be positively guided to the gas vent hole 39.
　以上、本発明を実施の形態をもとに説明した。これらの実施の形態は例示であり、それらの各々の構成要素や各々の処理プロセスの組合せにいろいろな変形例が可能なこと、またそうした変形例も本発明の範囲にあることは当業者に理解されるところである。 The present invention has been described based on the embodiments. Those skilled in the art will understand that these embodiments are exemplifications, and that various modifications can be made to the combinations of the respective constituent elements and the respective treatment processes, and such modifications are also within the scope of the present invention. It is where it is done.
　１　電源装置、１０　電池モジュール、２０　ユニットモジュール、２１　電池セル、２２　外装体、２３　電極タブ、２４　保持板、３０　ケース、３１　ケース体、３２　外部端子部、３３　基部、３４　貫通孔、３５　仕切壁、３６　カバー部、３７　切り欠き部、３８　固定部、３９　ガス抜き孔、４０　接続導体、５０　組電池、６０　固定用フレーム、７０　バスバー、８０　絶縁部、９０　シール材 1 power supply device, 10 battery module, 20 unit module, 21 battery cell, 22 exterior body, 23 electrode tab, 24 holding plate, 30 case, 31 case body, 32 external terminal part, 33 base part, 34 through hole, 35 partition wall , 36 cover part, 37 notch part, 38 fixing part, 39 vent hole, 40 connecting conductor, 50 assembled battery, 60 fixing frame, 70 bus bar, 80 insulating part, 90 sealing material

Claims (10)

  1. 　複数の電池セルと、
    　載置面に隣接して配置される一対のケース体を含むケースであって、前記一対のケース体が連結されることで前記一対のケース体の間に前記複数の電池セルを収納するための収納空間が形成され、各々のケース体が前記載置面に固定するための固定部を含む前記ケースと、
    　を有する第１の電池モジュールを備えることを特徴とする電源装置。     A plurality of battery cells;
    A case including a pair of case bodies arranged adjacent to a mounting surface, wherein the plurality of battery cells are housed between the pair of case bodies by connecting the pair of case bodies. A case in which a storage space is formed and each case body includes a fixing portion for fixing to the mounting surface;
    A power supply apparatus comprising: a first battery module having
  2. 　請求項１に記載の電源装置であって、
    　前記複数の電池セルは、幅広面を有するとともに、前記幅広面が平行な状態で前記ケースに収納され、
    　前記ケースは、収納されている前記複数の電池セルの前記幅広面が、前記載置面に対して平行な状態となる姿勢で、前記載置面に固定されることを特徴とする電源装置。     The power supply device according to claim 1,
    The plurality of battery cells have a wide surface and are housed in the case in a state where the wide surfaces are parallel,
    The power supply device, wherein the case is fixed to the mounting surface in a posture in which the wide surfaces of the plurality of battery cells stored are parallel to the mounting surface.
  3. 　請求項１または請求項２に記載の電源装置であって、
    　前記ケースは、該ケースに含まれる各々のケース体に外部端子部が設けられることを特徴とする電源装置。     The power supply device according to claim 1 or 2, wherein
    The power supply apparatus according to claim 1, wherein an external terminal portion is provided in each case body included in the case.
  4. 　請求項３に記載の電源装置であって、
    　前記一対のケース体は、それぞれのケース体が、前記複数の電池セルを所定の位置に案内する仕切壁を有する基部と、該基部から立設され、前記ケースの内部に位置する前記複数の電池セルの出力端子の少なくとも一部を覆うカバー部と、を含むことを特徴とする電源装置。     The power supply device according to claim 3,
    The pair of case bodies includes a base portion having a partition wall that guides the plurality of battery cells to a predetermined position, and the plurality of batteries that are erected from the base portion and are located inside the case. And a cover that covers at least a part of the output terminal of the cell.
  5. 　請求項４に記載の電源装置であって、
    　前記第１の電池モジュールは、さらに、前記カバー部の外表面に沿って配置され、前記複数の電池セルと各々の外部端子部とを電気的に接続する一対の接続導体を有することを特徴とする電源装置。     The power supply device according to claim 4,
    The first battery module further includes a pair of connection conductors that are arranged along an outer surface of the cover part and electrically connect the plurality of battery cells and each external terminal part. Power supply.
  6. 　請求項５に記載の電源装置であって、
    　前記第１の電池モジュールは、さらに、前記カバー部に連結され、該カバー部の外側表面に沿って配置される前記一対の接続導体の少なくとも一部を覆う絶縁部を含むことを特徴とする電源装置。     The power supply device according to claim 5,
    The first battery module further includes an insulating part connected to the cover part and covering at least a part of the pair of connection conductors arranged along an outer surface of the cover part. apparatus.
  7. 　請求項５または請求項６に記載の電源装置であって、
    　前記ケースは、それぞれのケース体のカバー部が位置する端面を含む扁平な直方体形状に形成され、
    　前記一対の外部端子部は、前記端面に設けられるとともに、該端面の対角方向にそれぞれの外部端子部が並んで位置することを特徴とする電源装置。     The power supply device according to claim 5 or 6, wherein
    The case is formed in a flat rectangular parallelepiped shape including an end surface where a cover portion of each case body is located,
    The pair of external terminal portions are provided on the end surface, and the external terminal portions are arranged side by side in a diagonal direction of the end surface.
  8. 　請求項５または請求項６に記載の電源装置であって、
    　前記ケースは、それぞれのケース体のカバー部が位置する端面を含む扁平な直方体形状に形成され、
    　前記一対の外部端子部は、前記端面に設けられるとともに、前記載置面と平行な方向にそれぞれの外部端子部が並んで位置することを特徴とする電源装置。     The power supply device according to claim 5 or 6, wherein
    The case is formed in a flat rectangular parallelepiped shape including an end surface where a cover portion of each case body is located,
    The pair of external terminal portions are provided on the end surface, and the external terminal portions are arranged side by side in a direction parallel to the mounting surface.
  9. 　請求項４から請求項８のいずれかに記載の電源装置であって、
    　前記扁平な直方体形状のケースは、前記複数の電池セルから放出されるガスを排気可能に形成される少なくとも一つの貫通孔を有することを特徴とする電源装置。     The power supply device according to any one of claims 4 to 8,
    The flat rectangular parallelepiped case has at least one through-hole formed so that gas discharged from the plurality of battery cells can be exhausted.
  10. 　請求項７または請求項８に記載の電源装置であって、
    　さらに、前記第１の電池モジュールに隣接して配置され、前記複数の電池セルと、前記ケースと、前記一対の接続導体と、を有する第２の電池モジュールを備え、
    　前記第１の電池モジュールの第１のケース体の一方の外部端子部と、隣接する前記第２の電池モジュールの前記第２のケース体の一方の外部端子部と、を接続することを特徴とする電源装置。     The power supply device according to claim 7 or claim 8,
    And a second battery module disposed adjacent to the first battery module and having the plurality of battery cells, the case, and the pair of connection conductors,
    One external terminal portion of the first case body of the first battery module is connected to one external terminal portion of the second case body of the adjacent second battery module. Power supply.
PCT/JP2015/003364 2014-10-30 2015-07-03 Power supply device WO2016067487A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-221169 2014-10-30
JP2014221169 2014-10-30

Publications (1)

Publication Number Publication Date
WO2016067487A1 true WO2016067487A1 (en) 2016-05-06

Family

ID=55856863

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/003364 WO2016067487A1 (en) 2014-10-30 2015-07-03 Power supply device

Country Status (1)

Country Link
WO (1) WO2016067487A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017117067A1 (en) * 2017-07-27 2019-01-31 Colibri Energy GmbH Enclosing element, border module, memory module and arrangement for providing electrical energy and transport vehicle containing the memory module or the arrangement for providing electrical energy
WO2019069862A1 (en) * 2017-10-03 2019-04-11 カルソニックカンセイ株式会社 Assembled battery
JP2019067674A (en) * 2017-10-03 2019-04-25 カルソニックカンセイ株式会社 Battery pack
JP2019165014A (en) * 2019-05-23 2019-09-26 カルソニックカンセイ株式会社 Battery pack
EP4068476A1 (en) * 2021-03-31 2022-10-05 Toyota Jidosha Kabushiki Kaisha Power storage device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006236826A (en) * 2005-02-25 2006-09-07 Toyota Motor Corp Battery pack
JP2010507214A (en) * 2006-10-16 2010-03-04 エルジー・ケム・リミテッド Battery module with compact connection structure
JP2012523087A (en) * 2009-04-01 2012-09-27 エルジー・ケム・リミテッド Battery module having flexibility in module design structure, and medium- and large-sized battery packs including the battery module
JP2013533579A (en) * 2010-06-03 2013-08-22 エルジー・ケム・リミテッド Battery module with new structure
JP2014525114A (en) * 2011-06-27 2014-09-25 エルジー・ケム・リミテッド Battery module and battery assembly including the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006236826A (en) * 2005-02-25 2006-09-07 Toyota Motor Corp Battery pack
JP2010507214A (en) * 2006-10-16 2010-03-04 エルジー・ケム・リミテッド Battery module with compact connection structure
JP2012523087A (en) * 2009-04-01 2012-09-27 エルジー・ケム・リミテッド Battery module having flexibility in module design structure, and medium- and large-sized battery packs including the battery module
JP2013533579A (en) * 2010-06-03 2013-08-22 エルジー・ケム・リミテッド Battery module with new structure
JP2014525114A (en) * 2011-06-27 2014-09-25 エルジー・ケム・リミテッド Battery module and battery assembly including the same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017117067A1 (en) * 2017-07-27 2019-01-31 Colibri Energy GmbH Enclosing element, border module, memory module and arrangement for providing electrical energy and transport vehicle containing the memory module or the arrangement for providing electrical energy
CN109309182A (en) * 2017-07-27 2019-02-05 科利布里能源有限公司 Closure elements, closed module, memory module and arrangement and haulage vehicle for providing electric energy
EP3435440A3 (en) * 2017-07-27 2019-03-27 Colibri Energy GmbH Bordering element, bordering module, storage module and arrangement for providing electrical energy, and transport vehicle comprising the storage module or arrangement for providing electrical energy
US11069937B2 (en) 2017-07-27 2021-07-20 Colibri Energy GmbH Enclosing element, enclosing module, storage module and arrangement for providing electrical energy and a transport vehicle containing the storage module or the arrangement for providing electrical energy
CN109309182B (en) * 2017-07-27 2022-11-15 科利布里能源有限公司 Closure element, closure module, storage module and arrangement for providing electrical energy and transport vehicle
WO2019069862A1 (en) * 2017-10-03 2019-04-11 カルソニックカンセイ株式会社 Assembled battery
JP2019067674A (en) * 2017-10-03 2019-04-25 カルソニックカンセイ株式会社 Battery pack
JP2019067678A (en) * 2017-10-03 2019-04-25 カルソニックカンセイ株式会社 Battery pack
JP7067890B2 (en) 2017-10-03 2022-05-16 マレリ株式会社 Batteries assembled
US11342626B2 (en) 2017-10-03 2022-05-24 Marelli Corporation Battery pack
JP2019165014A (en) * 2019-05-23 2019-09-26 カルソニックカンセイ株式会社 Battery pack
EP4068476A1 (en) * 2021-03-31 2022-10-05 Toyota Jidosha Kabushiki Kaisha Power storage device

Similar Documents

Publication Publication Date Title
JP7045564B2 (en) A battery module having an initial pressure strengthening structure for a cell assembly and a manufacturing method thereof.
EP3151307B1 (en) Battery module and battery pack comprising same
US9299500B2 (en) Power storage module
JP5889418B2 (en) Battery module assembly with improved reliability and medium-to-large battery pack including the same
JP5541250B2 (en) Secondary battery
EP2846377B1 (en) Battery assembly having single electrode terminal joint part
JP7292654B2 (en) Battery modules and battery packs containing the same
KR101281811B1 (en) Battery Pack Having Improved Structure Stability
KR20120016350A (en) Battery module and battery pack employed with the same
WO2016067487A1 (en) Power supply device
KR101776897B1 (en) Pouch type secondary battery and method for manufacturing the same
JP6715942B2 (en) Battery module and battery pack
WO2021140808A1 (en) Power storage device
US20190172639A1 (en) Power storage module
WO2006059469A1 (en) Film packed electric device assembly
WO2016084273A1 (en) Power source device
KR20140019951A (en) Battery module with bus-bar for changing position of output terminal
US20230124214A1 (en) Battery module and battery pack including the same
JP2019079599A (en) Power storage device
KR101824592B1 (en) Electric Double-Layer Capacitor Module
US20240145816A1 (en) Energy storage apparatus
KR20140020375A (en) Battery module having inserted-typed temperature measuring device
WO2022230435A1 (en) Power storage device
WO2022255162A1 (en) Power storage device
JP7189093B2 (en) Power storage module and power storage device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15855953

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: JP

122 Ep: pct application non-entry in european phase

Ref document number: 15855953

Country of ref document: EP

Kind code of ref document: A1