WO2016067487A1 - Dispositif d'alimentation électrique - Google Patents

Dispositif d'alimentation électrique Download PDF

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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
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WO
WIPO (PCT)
Prior art keywords
case
power supply
battery
pair
supply device
Prior art date
Application number
PCT/JP2015/003364
Other languages
English (en)
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/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • 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.

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

Abstract

L'invention concerne un dispositif d'alimentation électrique, et fournit une technique améliorant la résistance aux vibrations. Selon un mode de réalisation de l'invention, le dispositif d'alimentation et équipé : d'une pluralité de cellules de batterie ; et d'une enveloppe (30) qui contient une paire de corps d'enveloppe (31) disposée de manière adjacente à une face de montage. La paire de corps d'enveloppe (31) est telle qu'un espace de stockage pour stocker la pluralité de cellules de batterie entre les corps d'enveloppe (31) est formé par couplage mutuel. Chaque corps d'enveloppe (31) contient une partie fixation (38) pour permettre une fixation sur la face de montage.
PCT/JP2015/003364 2014-10-30 2015-07-03 Dispositif d'alimentation électrique WO2016067487A1 (fr)

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 (fr) 2016-05-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017117067A1 (de) * 2017-07-27 2019-01-31 Colibri Energy GmbH Einfasselement, Einfassmodul, Speichermodul und Anordnung zum Bereitstellen elektrischer Energie sowie Transportfahrzeug enthaltend das Speichermodul oder die Anordnung zum Bereitstellen elektrischer Energie
WO2019069862A1 (fr) * 2017-10-03 2019-04-11 カルソニックカンセイ株式会社 Batterie assemblée
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EP4068476A1 (fr) * 2021-03-31 2022-10-05 Toyota Jidosha Kabushiki Kaisha Dispositif de stockage d'énergie

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CN109309182A (zh) * 2017-07-27 2019-02-05 科利布里能源有限公司 封闭元件、封闭模块、存储模块和用于提供电能的布置及运输车辆
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WO2019069862A1 (fr) * 2017-10-03 2019-04-11 カルソニックカンセイ株式会社 Batterie assemblée
JP2019067674A (ja) * 2017-10-03 2019-04-25 カルソニックカンセイ株式会社 組電池
JP2019067678A (ja) * 2017-10-03 2019-04-25 カルソニックカンセイ株式会社 組電池
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JP2019165014A (ja) * 2019-05-23 2019-09-26 カルソニックカンセイ株式会社 組電池
EP4068476A1 (fr) * 2021-03-31 2022-10-05 Toyota Jidosha Kabushiki Kaisha Dispositif de stockage d'énergie

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