WO2019044010A1 - Bloc de cellules - Google Patents

Bloc de cellules Download PDF

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Publication number
WO2019044010A1
WO2019044010A1 PCT/JP2018/011104 JP2018011104W WO2019044010A1 WO 2019044010 A1 WO2019044010 A1 WO 2019044010A1 JP 2018011104 W JP2018011104 W JP 2018011104W WO 2019044010 A1 WO2019044010 A1 WO 2019044010A1
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WO
WIPO (PCT)
Prior art keywords
housing
opening
battery pack
battery
waterproof bag
Prior art date
Application number
PCT/JP2018/011104
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English (en)
Japanese (ja)
Inventor
和典 圓岡
Original Assignee
Ｎｅｃエナジーデバイス株式会社
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 Ｎｅｃエナジーデバイス株式会社 filed Critical Ｎｅｃエナジーデバイス株式会社
Priority to CN201880055943.0A priority Critical patent/CN111133604B/zh
Priority to JP2019538944A priority patent/JP7097898B2/ja
Publication of WO2019044010A1 publication Critical patent/WO2019044010A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a battery pack.
  • Battery packs are widely used in applications such as power tools, electrically assisted bicycles, electric motorcycles, hybrid electric vehicles, and unmanned aerial vehicles (drones).
  • the battery pack is also used in applications such as storage of electricity in homes and stores. In these various applications, the battery pack may be used outdoors. Therefore, the battery pack needs to have a structure for protecting the battery cells in the battery pack from the ingress of water.
  • Patent Document 1 discloses a battery pack in which an opening of a waterproof bag for containing a core pack of a battery is watertightly closed using a cord bush or a binding material.
  • the battery module which ensures waterproofness is disclosed by patent document 2 by fitting a sealing member in the cable drawing through-hole provided in the battery module.
  • the cable drawing through hole is a hole for drawing out the other end side of the cable connected to the electrode terminal of the battery cell accommodated in the battery module in order to connect to the external device.
  • the battery pack is produced through the following steps. First, the positive electrode and the negative electrode are alternately stacked on both sides of the separator. By stacking, a battery element (laminated structure) is generated. Next, the battery element (laminated structure) is sealed together with the electrolytic solution in a laminate outer package. Furthermore, a plurality of battery cells (unit cells) sealed by a laminate outer package are stacked. Then, a plurality of battery cells (unit cells) are stacked to form a battery pack. The battery pack has the assembled battery in the pack.
  • a battery pack produced by such a process uses a lithium ion secondary battery as a unit battery. It is known that, in the lithium ion secondary battery, the non-aqueous electrolyte reacts with the negative electrode active material and decomposes at the time of initial charge to generate gas. When this gas exists between the electrodes, a phenomenon such as an increase in internal resistance of the lithium ion secondary battery occurs. Then, the battery capacity decreases due to an increase in internal resistance of the lithium ion secondary battery, and the like. As a result, battery characteristics such as cycle characteristics may be degraded. In particular, in a lithium ion secondary battery employing a film outer package, the battery characteristics tend to deteriorate. In order to prevent the deterioration of the battery characteristics caused by the generation of the gas, the following measures are taken in this type of battery pack.
  • the battery pack when gas is generated from a unit cell, the battery pack is provided with a gas discharge mechanism that discharges the gas to the outside of the battery pack.
  • the gas discharge mechanism has a function of discharging the gas generated inside the battery pack to the outside of the battery pack.
  • the gas discharge mechanism has a function of preventing water from infiltrating from the outside of the battery pack.
  • the battery pack is internally provided with a gas absorbing material that absorbs the gas generated from the unit battery.
  • the above-described gas discharge mechanism has a structure in which a hole is once formed in the battery pack and a gas discharge valve is provided at that location. Therefore, providing the gas discharge mechanism at the opening of the waterproof bag, which is the boundary between the inside and the outside of the battery pack, is efficient in terms of achieving both the waterproof function and the gas discharge function.
  • the structure in which the opening of the waterproof bag is closed using a cord bush or a binding material has the following problems.
  • the problem is that there is no space for providing a gas discharge mechanism at the opening of the waterproof bag, which is the boundary between the inside and the outside of the battery pack. Therefore, the gas discharge mechanism has to be provided in the area other than the opening of the waterproof bag. This situation is the same even in a structure in which the lead-out through-hole of the cable is filled with the seal member in a state where the battery cell is housed in the battery module. Therefore, it has been decided to provide the gas discharge mechanism by opening a hole in a place other than the opening of the waterproof bag. Therefore, there is also a problem that the waterproof function is deteriorated depending on how to make a hole.
  • An object of the present invention is to provide a battery pack that solves the problem of providing a new mechanism in which a waterproof function and a gas discharge function are compatible, in view of the problems described above.
  • a housing for housing the battery covered with a waterproof bag one end side is electrically connected to the battery, and the other end is directed to the outside of the housing from the opening of the waterproof bag Of the other end of the cable from the first position of the casing corresponding to the cable for pulling out the cable and the drawing start position for pulling out the other end of the cable toward the outside of the case, the opening of the waterproof bag To the second position of the housing corresponding to the drawing start position for pulling out from the housing, the housing opening continuously formed in the housing, and the inner surface of the housing opening and the cable at the first position And a second member filling the gap between the inner surface of the case opening and the outer edge of the opening of the waterproof bag at the second position. And.
  • a battery pack having a new mechanism in which a waterproof function and a gas discharge function are compatible.
  • FIG. 1 It is a perspective view which shows the external appearance of an example of a battery pack typically. It is a perspective view which shows typically the assembled battery and the cable which were accommodated in the inside of a housing
  • FIG. 11 is a cross-sectional view taken along line XX ′ of FIG. It is a figure explaining an important section of an example of a battery pack of a 3rd embodiment.
  • FIG. 1 is a perspective view schematically showing the appearance of an example of a battery pack.
  • FIG. 2 is a perspective view schematically showing the assembled battery and the cable housed in the inside of the battery pack in a state where one of the housings of the battery pack shown in FIG. 1 is removed.
  • the battery pack 1000 accommodates, in the inside of a housing 100, a battery assembly in which a plurality of unit batteries 1 wrapped with a sheet of a flexible film are stacked at least and a protective circuit board.
  • the housing 100 can be formed by combining the pair of first case body 101 and the second case body 102.
  • the housing 100 has an opening 450. Through the opening 450, the other end side of the power cable 200 whose one end side is connected to the assembled battery is drawn out from the inside to the outside of the housing 100. Further, a signal cable (hereinafter also referred to as a sense line) 300 is connected to one end of each unit cell 1 from the inside to the outside of the housing 100 through the opening 450 to monitor the state of each unit cell 1. The other end of the is pulled out.
  • a signal cable hereinafter also referred to as a sense line
  • the power supply cable 200 includes two cables 220 and 230 having different polarities.
  • the sense line 300 is a signal line capable of outputting a state such as the voltage, current, temperature or the like of the unit cell 1.
  • the other ends of the cable 220 and the cable 230 are connected to the connector 250.
  • the other end of the sense line 300 is connected to the connector 350.
  • the assembled battery is covered with a waterproof bag 400.
  • the other end side of the power supply cable 200 and the other end side of the sense wire 300 are taken out from the opening 401 of the waterproof bag 400 and drawn out of the housing 100.
  • FIG. 3 is a perspective view schematically showing an example of a state before the battery pack constituting the battery pack of the first embodiment is put in a waterproof bag.
  • the battery pack 1001 (FIG. 5) of the first embodiment has a battery assembly 10 in which a plurality of unit batteries 1 wrapped with a sheet of a flexible film are stacked.
  • FIG. 3 shows a state in which seven unit cells 1 are stacked.
  • the number of stacked unit cells 1 is not limited to seven, and may be an arbitrary number.
  • One end sides of the cables 220 and 230 and one end side of the sense line 300 are electrically connected to the electrode terminals 21 and 22 of the assembled battery 10.
  • the other ends of the cables 220 and 230 are electrically connected to the connector 250.
  • the other end of the sense line 300 is electrically connected to the connector 350.
  • the waterproof bag 400 has a substantially rectangular parallelepiped shape and covers the battery assembly 10.
  • Waterproof bag 400 has an opening 401 for drawing out the other end of power supply cable 200 and the other end of sense wire 300 to the outside of waterproof bag 400.
  • FIG. 4 is a perspective view which shows typically an example of the state after putting the assembled battery which comprises the battery pack of 1st Embodiment and 2nd Embodiment in a waterproof bag.
  • FIG. 5 is a perspective view schematically showing an example of a state in which the battery pack after being put in a waterproof bag is combined with the upper case 101 and the lower case 102 and housed to form the battery pack of the first embodiment. .
  • the upper case 101 and the lower case 102 have a housing opening 105.
  • the upper case 101 and the lower case 102 connect the other end of the power cable 200 and the sense wire 300 from the opening 401 of the waterproof bag 400 from the extraction start position (S), the power cable 200 and the sense wire
  • a casing opening portion 105 is provided to the extraction start position (E) where the other end side of 300 is pulled out to the outside of the casing 100. That is, by combining the upper case tubular portion 1011 of the upper case 101 and the lower case tubular portion 1021 of the lower case 102, the housing opening 105 is formed. Then, the opening 401 of the waterproof bag 400 is disposed in the space of the housing opening 105.
  • the upper case tubular portion 1011 has the upper case sealing portion 501 in the housing opening 105 corresponding to the drawing start position (E) for drawing the other end side of the power supply cable 200 and the other end of the sense wire 300 from the housing 100 to the outside.
  • the upper case tubular portion 1011 is a case opening portion 105 corresponding to the drawing start position (S) at which the other end of the power cable 200 and the other end of the sense wire 300 is drawn from the opening 401 of the waterproof bag 400. It has 503.
  • the lower case tubular portion 1021 seals the lower case at the housing opening 105 corresponding to the drawing start position (E) for drawing the other end side of the power supply cable 200 and the other end of the sense wire 300 from the housing 100 to the outside.
  • the lower case tubular portion 1021 is a lower case sealing portion at the housing opening 105 corresponding to the drawing start position (S) for drawing the other end of the power cable 200 and the other end of the sense wire 300 from the opening 401 of the waterproof bag 400. It has 504. That is, as shown in FIG. 7, the case opening 105 is formed by an outer sealing portion 551 including an upper case sealing portion 501 and a lower case sealing portion 502, an upper case sealing portion 503, and a lower case sealing. This space is closed using the inner sealing portion 552 including the portion 504 and the inner surface of the housing opening 105. This point will be described later.
  • FIG. 6 is a top view showing an example of the battery pack of the first embodiment as seen through the upper case from the stacking direction of the unit cells.
  • the housing opening 105 is composed of the lower case tubular portion 1021, the lower case sealing portion 502 and the lower case sealing portion 504. Then, the opening 401 of the waterproof bag 400 is disposed in the space of the housing opening 105.
  • FIG. 7 is an enlarged perspective view of a portion A of FIG.
  • the housing opening 105 is closed using the outer sealing portion 551 and the inner sealing portion 552.
  • the outer sealing portion 551 seals so as to fill a gap between the inner surface of the housing opening 105 and the sheath of the power cable 200 and the sense wire 300.
  • the inner sealing portion 552 seals so as to fill a gap between the inner surface of the housing opening 105 and the outer edge of the opening 401 of the waterproof bag 400.
  • the outer sealing portion 551 may be made of any material as long as it is a member that fills the gap between the inner surface of the housing opening 105 and the sheath of the power cable 200 and the sense wire 300. Further, the inner sealing portion 552 may be made of any material as long as it is a member that fills the gap between the inner surface of the housing opening 105 and the outer edge of the opening 401 of the waterproof bag 400.
  • the housing opening 105 may have a gas discharge mechanism for discharging the gas generated from the unit battery 1 to the outside of the battery pack 1001.
  • the case opening 105 has the following function. One is a function to prevent water from infiltrating from the outside of the battery pack 1001. The other is a function of discharging the gas generated inside the battery pack 1001 to the outside of the battery pack 1001. These two functions can be compatible.
  • the housing opening 105 may have a gas absorbing material that absorbs the gas generated from the unit battery 1.
  • the outer sealing portion 551 is formed using the substantially semicircular upper case sealing portion 501 and the lower case sealing portion 502.
  • the inner sealing portion 552 is formed using the substantially semicircular upper case sealing portion 503 and the lower case sealing portion 504.
  • the outer sealing portion 551 and the inner sealing portion 552 may be formed using a single member instead of using a plurality of members.
  • the upper case tubular portion 1011 may be provided with the substantially circular outer sealing portion 551
  • the lower case tubular portion 1021 may be provided with the substantially circular inner sealing portion 552, or vice versa.
  • the extraction start position (S) for extracting from the opening 401 of the waterproof bag 400 A continuous case opening 105 is formed in the case 100 from the case 100 to the extraction start position (E) from which the case 100 is drawn.
  • the housing opening 105 forms a closed space using the outer sealing portion 551, the inner sealing portion 552, and the inner surface of the housing opening 105. Further, the outer sealing portion 551 seals so as to fill a gap between the inner surface of the housing opening 105 and the sheath of the power cable 200 and the sense wire 300.
  • the housing opening 105 may have a gas discharge mechanism for discharging the gas generated from the unit battery 1 to the outside of the battery pack 1001.
  • the case opening 105 has the following function. One is a function to prevent water from infiltrating from the outside of the battery pack 1001. The other is a function of discharging the gas generated inside the battery pack 1001 to the outside of the battery pack 1001. These two functions can be compatible.
  • FIGS. 3, 4 and 8 a schematic configuration of a battery pack according to a second embodiment of the present invention will be described using FIGS. 3, 4 and 8. Since FIG. 3 and FIG. 4 are the same as that of the battery pack of 1st Embodiment, detailed description is abbreviate
  • FIG. 8 is a perspective view schematically showing an example of a state in which the battery pack after being put in a waterproof bag is combined with the upper case 101 and the lower case 102 and housed to form the battery pack of the second embodiment. .
  • a continuous housing opening 105 is formed in the housing 100 from a position corresponding to the extraction start position (S) to a position corresponding to the extraction start position (E) from the housing 100 to the outside. Further, the case opening 105 is formed by combining the upper case tubular portion 1011 of the upper case 101 and the lower case tubular portion 1021 of the lower case 102 as in the first embodiment.
  • a tubular member (hereinafter also referred to as a tubular member) 500 whose outer peripheral surface abuts against the inner peripheral surface of the housing opening 105 is disposed in the space of the housing opening 105.
  • the tubular member 500 has the outer sealing portion 551 at the position of the housing opening 105 corresponding to the drawing start position (E) for drawing the other end side of the power cable 200 and the sense wire 300 from the housing 100. ing. Furthermore, the tubular member 500 pulls the other end side of the power supply cable 200 and the sense wire 300 out of the opening 401 of the waterproof bag 400 at the position of the housing opening 105 corresponding to the drawing start position (S). It has 552. That is, as shown in FIG. 12, the housing opening 105 is a space closed using the outer sealing portion 551, the inner sealing portion 552, and the inner surface of the tubular member 500. This point will be described later.
  • FIG. 9 is a top view showing an example of the battery pack of the second embodiment as seen through the upper case from the stacking direction of the unit cells.
  • the housing opening 105 is composed of the lower case tubular portion 1021, the outer sealing portion 551 of the tubular member 500, and the inner sealing portion 552.
  • the opening 401 of the waterproof bag 400 is disposed in the space of the tubular member 500 disposed in the space of the housing opening 105.
  • the tubular member 500 whose outer peripheral surface abuts against the inner peripheral surface of the housing opening 105 is the outer sealing portion 551, the inner sealing portion 552, and the inner peripheral surface of the tubular member 500. It forms a closed space. Furthermore, the outer seal 551 seals to fill the gap between the inner surface of the tubular member 500 and the sheath of the power cable 200 and the sense wire 300. The inner seal 552 seals to fill the gap between the inner surface of the tubular member 500 and the outer edge of the opening 401 of the waterproof bag 400.
  • FIG. 10 is a perspective view schematically showing the appearance of an example of the battery pack of the second embodiment.
  • FIG. 11 is a perspective view schematically showing the appearance of a state in which the lower case of one example of the battery pack of the second embodiment is removed.
  • the upper case tubular portion 1011 and the lower case tubular portion 1021 are not shown.
  • the basic configuration of the battery pack 1002 according to the present embodiment is the same as that described above with reference to FIGS. 1 and 2. Then, in the present embodiment, as shown in FIGS. 10 and 11, the other end sides of the power cable 200 and the sense wire 300 are drawn to the position of the tubular member 500 corresponding to the drawing start position for drawing the case 100 out. An outer sealing portion 551 is provided. Furthermore, in the present embodiment, although not illustrated in FIGS. 10 and 11, a tubular member corresponding to the extraction start position in which the other end side of the power cable 200 and the sense wire 300 is extracted from the opening 401 of the waterproof bag 400. An inner seal 552 is provided at the 500 position.
  • the outer sealing portion 551 seals the gap between the inner surface of the tubular member 500 and the sheath of the power cable 200 and the sense wire 300. Furthermore, although not shown in FIGS. 10 and 11, the inner seal 552 seals to fill the gap between the inner surface of the tubular member 500 and the outer edge of the opening 401 of the waterproof bag 400.
  • FIG. 12 is a cross-sectional view taken along line XX ′ of FIG.
  • the other end of the power cable 200 corresponds to the extraction start position (S) for extraction from the opening 401 of the waterproof bag 400 from the position corresponding to the extraction start position (E) for extraction from the housing 100.
  • the housing opening 105 is continuously formed in the housing 100 to the position where The tubular member 500 is disposed in the space of the housing opening 105.
  • the tubular member 500 forms a closed space using the outer sealing portion 551, the inner sealing portion 552, and the inner surface of the tubular member 500.
  • the other end side of the power cable 200 drawn out from the opening 401 of the waterproof bag 400 is drawn out of the housing 100 through the inner surface of the tubular member 500.
  • the outer sealing portion 551 seals so as to fill a gap between the inner surface of the tubular member 500 and the sheath of the power cable 200.
  • the inner seal 552 seals to fill the gap between the inner surface of the tubular member 500 and the outer edge of the opening 401 of the waterproof bag 400.
  • the tubular member 500 may have a gas discharge mechanism that discharges the gas generated from the unit cell 1 to the outside of the battery pack 1002.
  • the tubular member 500 has the following functions. One is a function in which water infiltrates from the outside of the battery pack 1002. The other is a function of discharging the gas generated inside the battery pack 1002 to the outside of the battery pack 1002. These two functions can be compatible.
  • the tubular member 500 may have a gas absorbing material that absorbs the gas generated from the unit cell 1.
  • one end side of the power supply cable 200 is connected to the electrodes 21 and 22 of the assembled battery 10.
  • the casing 100 is continuous with the casing 100 from the extraction start position (S) for extraction from the opening 401 of the waterproof bag 400 to the extraction start position (E) for extraction from the housing 100.
  • a body opening 105 is formed.
  • a space closed using the inner surface of the tubular member 500 whose outer peripheral surface abuts against the inner peripheral surface of the housing opening 105, the outer sealing portion 551, and the inner sealing portion 552 is formed. There is.
  • the tubular member 500 may have a gas discharge mechanism for discharging the gas generated from the unit battery 1 to the outside of the battery pack 1002.
  • the tubular member 500 has the following functions. One is a function to prevent water from infiltrating from the outside of the battery pack 1002. The other is a function of discharging the gas generated inside the battery pack 1002 to the outside of the battery pack 1002. These two functions can be compatible.
  • the dimensions of the housing opening 105 and the tubular member 500 in the longitudinal direction of the power cable 200 can be as follows. That is, it is possible to set an arbitrary length from the extraction start position (E) for drawing out the power supply cable 200 to the outside of the housing 100, and the extraction start position (S) for drawing out the power supply cable 200 from the opening 401 of the waterproof bag 400. It is.
  • the unit battery 1 is described for a lithium ion secondary battery among chargeable / dischargeable secondary batteries.
  • the unit cell 1 can also be a nickel hydrogen battery or a nickel cadmium battery.
  • the battery pack 1001, 1002 is described by taking a laminated battery in which a battery element (laminated structure) is sealed together with an electrolytic solution in a laminate exterior as an example of the unit battery 1 .
  • the shape of the unit cell 1 can take an arbitrary shape such as a cylindrical battery or a rectangular battery.
  • stacks seven unit cells 1 as the assembled battery 10 is shown.
  • the number of stacked unit cells 1 is not limited to seven, and can be any number.
  • FIG. 13 is a view for explaining the main part of an example of the battery pack of the third embodiment.
  • the battery pack 1003 of the present embodiment includes a housing 100, a cable 220, a housing opening 105, a first member 510, and a second member 520.
  • the housing 100 accommodates the battery 11 covered with the waterproof bag 400.
  • One end of the cable 220 is electrically connected to the battery 11.
  • the other end of the cable 220 is pulled out of the opening 401 of the waterproof bag 400 to the outside of the housing 100.
  • the housing opening 105 is formed in the following position. That is, a case corresponding to the withdrawal start position for pulling out from opening 401 of waterproof bag 400 from the first position of casing 100 corresponding to the withdrawal start position for pulling out the other end side of cable 220 toward the outside of casing 100. It forms to the 2nd position of body 100.
  • the housing opening 105 is continuously formed in the housing 100.
  • the first member 510 fills the gap between the inner surface of the housing opening 105 and the sheath of the cable 220 at the first position of the housing 100.
  • the second member 520 fills the gap between the inner surface of the housing opening 105 and the outer edge of the opening 401 of the waterproof bag 400 at the second position of the housing 100.
  • the housing opening 105 is formed at the following position. That is, from the first position of housing 100 corresponding to the drawing start position for drawing from housing 100 at the other end of cable 220, housing 100 corresponding to the drawing start position for drawing from opening 401 of waterproof bag 400. It forms to the 2nd position of. Then, in the first position of the housing 100, the gap between the inner surface of the housing opening 105 and the jacket of the cable 220 is sealed using the first member 510. Further, in the second position of the housing 100, the gap between the inner surface of the housing opening 105 and the outer edge of the opening 401 of the waterproof bag 400 is sealed using the second member 520.
  • the housing opening 105 may have a gas discharge mechanism for discharging the gas generated from the unit battery 1 to the outside of the battery pack 1003.
  • a gas discharge mechanism for discharging the gas generated from the unit battery 1 to the outside of the battery pack 1003.
  • the above embodiment is described on the premise that the case opening 105 is continuously formed in the case 100.
  • the first member 510 and the second member 502 for housing the opening 401 of the waterproof bag 400 for housing the battery 11 in the tube through which the cable 220 is to be sealed and sealing the openings at both ends of this tube The same effect can be obtained as long as the configuration has

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

L'invention concerne un bloc de cellules comprenant : un boîtier (100) pour stocker une cellule recouverte d'une poche étanche à l'eau ; un câble (220) ayant une extrémité connectée électriquement à la cellule et l'autre extrémité tirée de l'ouverture de la poche étanche à l'eau vers l'extérieur du boîtier ; une ouverture de boîtier (105) formée en continu dans le boîtier à partir de la position dans le boîtier correspondant à une position de début de traction à partir de laquelle l'autre extrémité du câble est tirée à l'extérieur du boîtier vers la position dans le boîtier correspondant à une position de début de traction à partir de laquelle le câble est tiré à partir de l'ouverture de la poche étanche à l'eau ; un élément (510) pour remplir l'espace entre la surface interne de l'ouverture du boîtier et la couche externe du câble ; et un élément (520) pour remplir l'espace entre la surface interne de l'ouverture du boîtier et le bord externe de l'ouverture de la poche étanche à l'eau.
PCT/JP2018/011104 2017-09-01 2018-03-20 Bloc de cellules WO2019044010A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880055943.0A CN111133604B (zh) 2017-09-01 2018-03-20 电池组
JP2019538944A JP7097898B2 (ja) 2017-09-01 2018-03-20 電池パック

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JP2017-168528 2017-09-01
JP2017168528 2017-09-01

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WO2019044010A1 true WO2019044010A1 (fr) 2019-03-07

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CN (1) CN111133604B (fr)
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WO2021166624A1 (fr) * 2020-02-21 2021-08-26 株式会社Ｇｓユアサ Dispositif de stockage électrique

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CN113078400B (zh) * 2021-03-26 2024-04-26 宁德新能源科技有限公司 壳体、电池组及用电装置

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