WO2021060472A1 - 蓄電パック - Google Patents
蓄電パック Download PDFInfo
- Publication number
- WO2021060472A1 WO2021060472A1 PCT/JP2020/036286 JP2020036286W WO2021060472A1 WO 2021060472 A1 WO2021060472 A1 WO 2021060472A1 JP 2020036286 W JP2020036286 W JP 2020036286W WO 2021060472 A1 WO2021060472 A1 WO 2021060472A1
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- WO
- WIPO (PCT)
- Prior art keywords
- fire extinguishing
- power storage
- extinguishing agent
- case
- storage device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
- H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
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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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
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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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
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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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
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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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
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- 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
- This disclosure relates to a storage pack.
- Power storage devices such as lithium-ion secondary batteries have been put into practical use as power sources for driving mobile electronic devices such as mobile phones and notebook computers. Further, the power storage device is used not only for small consumer use but also as an in-vehicle power source and the like.
- a plurality of power storage devices are housed in a case and used in the state of a power storage pack.
- a power storage device has an exhaust unit that discharges high-temperature and high-pressure gas when gas is generated inside and the internal pressure rises.
- the gas discharged from the exhaust unit includes flammable gas and fine particles such as debris of parts constituting the power storage device. If flammable gas and high-temperature fine particles are discharged to the outside of the case of the storage pack and the flammable gas, high-temperature fine particles, and oxygen outside the pack are aligned, ignition may occur.
- Patent Document 1 discloses a battery module in which a fire extinguishing container containing a fire extinguishing agent powder is provided in an exhaust passage in a case.
- the fire extinguishing container is broken by the heat of the gas discharged from the battery, the fire extinguishing agent powder in the container is ejected into the exhaust passage, and the fire extinguishing agent powder acts on the exhaust gas, so that it is outside the pack. It suppressed the ignition.
- the fire extinguishing agent powder can be held in a predetermined position by storing the fire extinguishing agent powder in the fire extinguishing container.
- the fire extinguishing agent powder since the fire extinguishing agent powder is covered with the fire extinguishing container, the fire extinguishing action of the fire extinguishing agent powder may be delayed as compared with the case where the fire extinguishing agent powder is not contained in the fire extinguishing container. Delayed fire extinguishing action can lead to a decrease in the reliability of the storage pack.
- This disclosure was made in view of these circumstances, and one of the purposes is to provide a technique for improving the reliability of the storage pack.
- This power storage pack has a structure in which at least one power storage device having an exterior body and an exhaust unit for discharging gas generated inside the exterior body and a plurality of fire extinguishing agent particles are aggregated, and has a void inside. It includes a porous portion, a power storage device, and a case for accommodating the porous portion.
- Each fire extinguishing agent particle is an aggregate of a plurality of fire extinguishing agent powders, and the porous portion is arranged so that the gas flows through the voids.
- This power storage pack is composed of at least one power storage device having an exterior body and an exhaust unit for discharging gas generated inside the exterior body, and an aggregate of a plurality of fire extinguishing agent powders, and is a fire extinguishing agent having through holes.
- a sheet and a case for accommodating a power storage device and a fire extinguishing agent sheet are provided.
- the fire extinguishing agent sheet is arranged so that the gas flows through the through hole.
- the reliability of the storage pack can be improved.
- FIG. 1 It is sectional drawing which shows typically the storage pack which concerns on Embodiment 1.
- FIG. 2 is sectional drawing of the power storage device. It is sectional drawing which shows typically the storage pack which concerns on Embodiment 2.
- FIG. 2 is sectional drawing which shows typically the storage pack which concerns on Embodiment 3.
- FIG. 1 It is sectional drawing which shows typically the storage pack which concerns on Embodiment 1.
- FIG. 1 is a cross-sectional view schematically showing a storage pack according to the first embodiment.
- the power storage pack 1 includes a plurality of power storage devices 2, a porous portion 4, and a case 6.
- the power storage device 2 is, for example, a rechargeable secondary battery such as a lithium ion battery, a nickel-hydrogen battery, or a nickel-cadmium battery, or a capacitor such as an electric double layer capacitor.
- the power storage device 2 of the present embodiment is a so-called cylindrical battery.
- the power storage device 2 may be a square battery or the like.
- the power storage pack 1 of the present embodiment includes a plurality of power storage devices 2, the number of power storage devices 2 is not limited, and the power storage pack 1 may include at least one power storage device 2.
- FIG. 2 is a cross-sectional view of the power storage device 2.
- the power storage device 2 has a known structure.
- the power storage device 2 has a structure in which the electrode group 14 is housed in the bottomed tubular outer body 16 together with the non-aqueous electrolytic solution.
- the electrode group 14 has a structure in which the positive electrode 8 and the negative electrode 10 are wound around the separator 12 through the separator 12.
- the insulating plate 18 and the insulating plate 20 are arranged so as to sandwich the electrode group 14.
- the power storage device 2 has a positive electrode lead 22, a filter 24, a negative electrode lead 26, an inner cap 28, a valve body 30, a terminal plate 32, and a gasket 34.
- the filter 24, the inner cap 28, the valve body 30, and the terminal plate 32 form a sealing body that closes the opening of the exterior body 16.
- the insulating plate 18 is arranged on the sealing body side, and the insulating plate 20 is arranged on the bottom side of the exterior body 16.
- the positive electrode 8 is joined to the filter 24 via the positive electrode lead 22.
- the filter 24 is connected to the inner cap 28.
- the inner cap 28 has a protrusion and is joined to the metal valve body 30 via the protrusion.
- the valve body 30 is connected to the terminal plate 32.
- the terminal plate 32 functions as the positive electrode terminal 2a.
- the negative electrode 10 is joined to the bottom of the exterior body 16 via the negative electrode lead 26.
- the bottom of the exterior body 16 functions as the negative electrode terminal 2b.
- a gasket 34 is interposed between the sealing body and the exterior body 16 to insulate each other.
- the insulating plate 18 has a through hole 18a that communicates the space on the electrode group 14 side and the space on the filter 24 side.
- the filter 24 has a through hole 24a that communicates the space on the insulating plate 18 side and the space on the inner cap 28 side.
- the inner cap 28 has a through hole 28a that communicates the space on the filter 24 side and the space on the valve body 30 side.
- the valve body 30 breaks. As a result, the gas in the exterior body 16 reaches the terminal plate 32 through the through hole 18a, the through hole 24a, the through hole 28a, and the crevice of the valve body 30.
- the terminal plate 32 has a through hole 32a that communicates the space on the valve body 30 side with the outside of the exterior body 16. Therefore, the gas that has reached the terminal plate 32 is discharged to the outside of the exterior body 16 through the through hole 32a.
- the exhaust unit 36 is configured.
- the structure of the exhaust unit 36 is not limited to the above. Further, the exhaust portion 36 may be provided on the exterior body 16.
- the plurality of power storage devices 2 are laid in the case 6 in a predetermined posture.
- the posture of the plurality of power storage devices 2 is determined so that the positive electrode terminals 2a and the negative electrode terminals 2b are arranged in a predetermined first direction X. Then, they are arranged in a matrix in the first direction X and the second direction Y.
- the second direction Y is a direction orthogonal to the first direction X.
- FIG. 1 shows how a plurality of power storage devices 2 are laid so as to have two columns in the first direction X and a plurality of rows in the second direction Y.
- Two power storage devices 2 are arranged in the first row, and three power storage devices 2 are arranged in the second row. Further, the posture of each power storage device 2 is determined so that the positive electrode terminal 2a faces the center side of the case 6 in the first direction X.
- the positive electrode terminals 2a of the two power storage devices 2 in the first row and the two power storage devices 2 in the second row face each other.
- a positive electrode side current collector plate (not shown) is connected to the positive electrode terminal 2a of each power storage device 2, and a negative electrode side current collector plate (not shown) is connected to the negative electrode terminal 2b of each power storage device 2. Will be done. As a result, each power storage device 2 is electrically connected.
- the porous portion 4 has a structure in which a plurality of fire extinguishing agent particles 38 are aggregated and stacked.
- Each fire extinguishing agent particle 38 is an aggregate of a plurality of fire extinguishing agent powders.
- the fire extinguishing agent powder is composed of known components such as primary ammonium phosphate, sodium hydrogen carbonate, potassium hydrogen carbonate, potassium acetate, and tripotassium citrate.
- the fire extinguishing agent particles 38 can be obtained, for example, by kneading and shaping the fire extinguishing agent powder and the binder. Alternatively, the fire extinguishing agent particles 38 can be obtained by compression molding of the fire extinguishing agent powder.
- the fire extinguishing agent particles 38 are preferably spherical such as true spherical, long spherical, and oblate, but are not limited to this and may have a polygonal shape such as a cube.
- the porous portion 4 has a void 40 inside.
- the void 40 is a space partitioned by a plurality of aggregated fire extinguishing agent particles 38.
- the maximum diameter is, for example, 1 mm to 10 mm.
- the maximum diameter of the fire extinguishing agent particles 38 is 1 mm or more, it is possible to secure the size of the void 40 and prevent the pressure loss when the exhaust gas passes through the void 40 from becoming excessive. Further, by setting the maximum diameter of the fire extinguishing agent particles 38 to 10 mm or less, the surface area of the porous portion 4 (contact area between each fire extinguishing agent particle 38 and the exhaust gas) is significantly reduced, and the fire extinguishing action is delayed or weakened. Can be suppressed.
- the maximum diameter is the distance between the two points at the portion where the distance between the two points on the surface of the fire extinguishing agent particle 38 is maximized.
- Case 6 is a container that houses the power storage device 2 and the porous portion 4.
- Case 6 of the present embodiment has a first storage chamber 42 and a second storage chamber 44.
- the first accommodation chamber 42 and the second accommodation chamber 44 are separated by a wall portion 46.
- a plurality of power storage devices 2 are housed in the above-mentioned laying mode.
- the porous portion 4 is housed in the second storage chamber 44.
- the second storage chamber 44 is filled with a plurality of fire extinguishing agent particles 38 that are not adhered to each other. Then, the shape of the aggregate of the fire extinguishing agent particles 38 is held by the inner wall surface of the second storage chamber 44, so that the porous portion 4 is formed. Therefore, the fire extinguishing agent powder is arranged in the case 6 in an exposed state.
- the configuration is not particularly limited to this, and a plurality of fire extinguishing agent particles 38 may be bonded to each other in advance to form a porous portion 4, and the porous portion 4 may be accommodated in the second storage chamber 44.
- the wall portion 46 may be omitted.
- the porous portion 4 can be fixed to the wall surface of the case 6 by adhesion or the like.
- the porous portion 4 is arranged in the case 6 so that the gas discharged from the power storage device 2 flows through the void 40.
- the case 6 of the present embodiment has a through hole 48 in the wall portion 46 that separates the first storage chamber 42 and the second storage chamber 44.
- the internal space of the first accommodation chamber 42 and the internal space of the second accommodation chamber 44 are communicated with each other through the through hole 48.
- the gas ejected from the power storage device 2 can flow into the second accommodating chamber 44 through the through hole 48 and flow through the void 40 of the porous portion 4.
- the fire extinguishing agent powder constituting the fire extinguishing agent particles 38 reacts with the heat of the gas. Then, the reactant produced by this reaction exerts a negative catalytic action that suppresses the chain reaction of combustion. As a result, ignition caused by the gas discharged from the power storage device 2 can be suppressed.
- Case 6 of this embodiment has an opening 50.
- the opening 50 opens at least after the gas is discharged to connect the inside and outside of the case 6.
- the opening 50 is composed of a thin portion having a thickness thinner than the other portion provided on a part of the outer wall of the case 6.
- the opening 50 is opened by tearing the thin portion.
- each gas flow path 52 has an assembly portion 52a that aggregates with each other at least in a part. That is, each gas flow path 52 is one flow path in at least a part of the section.
- the second storage chamber 44 is provided so as to be in contact with the outer wall of the case 6. Further, the opening 50 is arranged so as to communicate the outside of the case 6 with the internal space of the second storage chamber 44. Therefore, the internal space of the second storage chamber 44 is communicated with the internal space of the first storage chamber 42 by the through hole 48, and is communicated with the outside of the case 6 by the opening 50. As a result, the internal space of the second accommodation chamber 44 forms a part of the gas flow path 52.
- the porous portion 4 is housed in the second storage chamber 44. Therefore, the porous portion 4 is arranged in the gas flow path 52.
- the void 40 constitutes a part of the gas flow path 52 by being continuous from the end on the opening 50 side to the end on the through hole 48 side in the porous portion 4.
- the gas discharged from the exhaust portion 36 of each power storage device 2 reaches the opening 50 from the through hole 48 via the inside of the second accommodating chamber 44. Therefore, the internal space of the second accommodating chamber 44 constitutes the gathering portion 52a of the gas flow path 52. Therefore, the porous portion 4 in the second storage chamber 44 is arranged in the gathering portion 52a.
- the opening 50 is arranged so as to communicate the internal space of the second storage chamber 44 with the outside of the case 6. Further, the porous portion 4 extends over the entire second storage chamber 44. Therefore, the porous portion 4 is arranged so as to cover the opening 50.
- the power storage pack 1 includes at least one power storage device 2 having an exterior body 16 and an exhaust unit 36 for discharging gas generated inside the exterior body 16, and a plurality of power storage devices 2.
- a porous portion 4 having a structure in which fire extinguishing agent particles 38 are aggregated and having a void 40 inside, and a case 6 accommodating a power storage device 2 and the porous portion 4 are provided.
- Each fire extinguishing agent particle 38 is an aggregate of a plurality of fire extinguishing agent powders, and the porous portion 4 is arranged in the case 6 so that the gas discharged from the power storage device 2 flows through the void 40.
- the gas discharged from the power storage device 2 can be brought into contact with the fire extinguishing agent powder, and ignition caused by the exhaust gas can be suppressed by the negative catalytic action of the fire extinguishing agent powder.
- the flow of exhaust gas is blocked by the sheet of fire extinguishing agent powder, and a large pressure loss occurs in the flow of exhaust gas. Due to this pressure loss, the internal pressure of the case may be excessively increased and the case may be damaged.
- the exhaust gas may be discharged to the outside of the case by bypassing the fire extinguishing agent sheet, and a sufficient fire extinguishing effect may not be obtained.
- the porous portion 4 is composed of the extinguishing agent particles 38 formed by collecting the extinguishing agent powder, and the gas is circulated in the void 40 of the porous portion 4.
- the pressure loss when the exhaust gas is discharged to the outside of the case 6 can be reduced. Therefore, according to the present embodiment, damage to the case 6 can be suppressed, and a higher fire extinguishing effect can be obtained. Therefore, the reliability of the storage pack 1 can be improved.
- the fire extinguishing agent powder in the conventional structure in which the fire extinguishing agent powder is ejected by breaking the fire extinguishing container, it takes time to break the container, so that there is a time lag between the discharge of gas and the ejection of the fire extinguishing agent. Therefore, a sufficient fire extinguishing effect may not be obtained.
- the fire extinguishing powder has a very large specific surface area. Therefore, when the fire extinguishing agent powder is ejected, each fire extinguishing agent powder rapidly acts with the exhaust gas. Also, most of the fire extinguishing agent powder acts at once. On the other hand, the discharge of gas from the power storage device 2 generally continues for several seconds to several tens of seconds.
- the fire extinguishing agent powder when the fire extinguishing agent powder is ejected, the fire extinguishing agent powder may be exhausted at the initial stage of gas discharge, and a sufficient fire extinguishing effect may not be obtained. Further, when the fire extinguishing agent powder is ejected, the unreacted fire extinguishing agent powder may be pressed by the exhaust gas and scattered, so that a sufficient fire extinguishing effect may not be obtained.
- the fire extinguishing agent powder is arranged in the case 6 in the state of the fire extinguishing agent particles 38. Therefore, there is no need for a container to store the fire extinguishing agent powder. Therefore, the fire extinguishing agent powder can act on the discharge of the gas from the power storage device 2 without delay. Further, since the fire extinguishing agent powder that is closest to the surface of the fire extinguishing agent particles 38 reacts with the gas in order, the consumption rate of the fire extinguishing agent powder can be delayed. Therefore, the fire extinguishing action of the fire extinguishing agent powder can be continued for a long time. In addition, it is possible to prevent the fire extinguishing agent powder from being extruded by the exhaust gas. Therefore, according to the present embodiment, a higher fire extinguishing effect can be obtained. Therefore, the reliability of the storage pack 1 can be improved.
- the porous portion 4 is an aggregate of a plurality of fire extinguishing agent particles 38. Therefore, by adjusting the size and quantity of the fire extinguishing agent particles 38, the size of the void 40 (that is, the size of the pressure loss), the contact area with the exhaust gas (that is, the amount of the fire extinguishing agent powder acting on the exhaust gas) and the like can be adjusted. It can be adjusted flexibly. As a result, it is possible to flexibly deal with the amount of exhaust gas and the discharge time that may differ depending on the type of the power storage device 2.
- the type of the fire extinguishing agent powder different between the center side and the surface side of each fire extinguishing agent particle 38, and thereby the fire extinguishing effect can be improved.
- the gas flow path in the void 40 a non-linear gas flow path is easily formed in the porous portion 4. As a result, the flow path of the gas can be extended, and the gas can be further cooled before being discharged to the outside of the case 6.
- the case 6 of the present embodiment has an opening 50 that opens at least after the gas is discharged and connects the inside and the outside of the case 6, and a gas flow path 52 from the exhaust portion 36 to the opening 50 is formed in the case 6. Will be done. Then, the porous portion 4 is arranged in the gas flow path 52. As a result, the gas discharged from the power storage device 2 can be easily brought into contact with the fire extinguishing agent particles 38. Therefore, a higher fire extinguishing effect can be obtained.
- the power storage pack 1 includes a plurality of power storage devices 2. Therefore, a plurality of gas flow paths 52 from the exhaust portion 36 of each power storage device 2 to the opening 50 are formed in the case 6. Further, the plurality of gas flow paths 52 have a gathering portion 52a that gathers with each other. Then, the porous portion 4 is arranged in the gathering portion 52a. As a result, the number of power storage devices 2 to be extinguished by one porous portion 4 can be increased. Therefore, the number of porous portions 4 arranged in the case 6 can be reduced. As a result, it is possible to suppress the increase in size of the storage pack 1. Alternatively, the number of power storage devices 2 that can be accommodated in the case 6 can be increased. In addition, the amount of fire extinguishing agent powder used can be reduced.
- the porous portion 4 of the present embodiment is arranged so as to cover the opening 50.
- the number of power storage devices 2 in which one porous portion 4 is in charge of extinguishing a fire can be increased. Therefore, the number of porous portions 4 arranged in the case 6 can be reduced.
- the degree of freedom in arranging the power storage device 2 can be increased.
- FIG. 3 is a cross-sectional view schematically showing the storage pack 1 according to the second embodiment. In FIG. 3, the illustration of the internal structure of the power storage device 2 is omitted.
- the power storage pack 1 includes a plurality of power storage devices 2, a porous portion 4, and a case 6.
- the plurality of power storage devices 2 are laid in the case 6 in a predetermined posture.
- a plurality of power storage devices 2 are arranged in a matrix of 3 rows and 2 columns in the first direction X and the second direction Y. Further, the power storage device 2 in the first row and the power storage device 2 in the second row are arranged so that the positive electrode terminals 2a face each other. That is, the posture of each power storage device 2 is determined so that the positive electrode terminal 2a faces the center side of the case 6 in the first direction X.
- the case 6 has a space sandwiched between the group of the power storage device 2 in the first row and the group of the power storage device 2 in the second row in the central portion in the first direction X.
- the exhaust unit 36 of each power storage device 2 is communicated with this space. Therefore, the gas generated inside each power storage device 2 is discharged from the exhaust unit 36 into this space. Therefore, this space constitutes a shared exhaust region 54 in which gas is discharged from each power storage device 2.
- the shared exhaust region 54 is divided by, for example, the surface of the plurality of power storage devices 2 on the positive electrode terminal 2a side and the two wall surfaces of the case 6 facing each other in the directions orthogonal to the first direction X and the second direction Y. Is.
- the porous portion 4 having a structure in which a plurality of fire extinguishing agent particles 38 are aggregated is arranged in the common exhaust region 54.
- a plurality of fire extinguishing agent particles 38 are adhered to each other in advance to form a porous portion 4, and the porous portion 4 is arranged in the common exhaust region 54.
- the porous portion 4 is adhered to, for example, the wall surface of the case 6 and fixed to the common exhaust region 54.
- the arrangement of the porous portion 4 in the shared exhaust region 54 can also be regarded as the arrangement of the porous portion 4 in the gas flow path 52 of the gas discharged from each power storage device 2. It should be noted that the entire peripheral edge of the porous portion 4 does not have to be in contact with the inner wall of the case 6 that partitions the accommodation space of the porous portion 4 when viewed from the traveling direction of the gas.
- the same effect as that of the first embodiment can be obtained.
- the porous portion 4 so as to face the exhaust portion 36 of the power storage device 2, the gas discharged from the power storage device 2 can be easily flowed into the void 40 of the porous portion 4.
- the number and shape of the porous portion 4 arranged in the case 6 and the opening 50 included in the case 6 are not particularly limited.
- the outer shape of the power storage device 2 and the case 6, the internal structure of the power storage device 2, and the like are not particularly limited.
- FIG. 4 is a cross-sectional view schematically showing the storage pack according to the third embodiment.
- the power storage pack 1 includes a plurality of power storage devices 2, a fire extinguishing agent sheet 60, and a case 6.
- the power storage device 2 is, for example, a rechargeable secondary battery such as a lithium ion battery, a nickel-hydrogen battery, or a nickel-cadmium battery, or a capacitor such as an electric double layer capacitor.
- the power storage device 2 of the present embodiment is a so-called cylindrical battery.
- the power storage device 2 may be a square battery or the like.
- the power storage pack 1 of the present embodiment includes a plurality of power storage devices 2, the number of power storage devices 2 is not limited, and the power storage pack 1 may include at least one power storage device 2.
- FIG. 5 is a cross-sectional view of the power storage device 2.
- the power storage device 2 has a known structure.
- the power storage device 2 has a structure in which the electrode group 14 is housed in the bottomed tubular outer body 16 together with the non-aqueous electrolytic solution.
- the electrode group 14 has a structure in which the positive electrode 8 and the negative electrode 10 are wound around the separator 12 through the separator 12.
- the insulating plate 18 and the insulating plate 20 are arranged so as to sandwich the electrode group 14.
- the power storage device 2 has a positive electrode lead 22, a filter 24, a negative electrode lead 26, an inner cap 28, a valve body 30, a terminal plate 32, and a gasket 34.
- the filter 24, the inner cap 28, the valve body 30, and the terminal plate 32 form a sealing body that closes the opening of the exterior body 16.
- the insulating plate 18 is arranged on the sealing body side, and the insulating plate 20 is arranged on the bottom side of the exterior body 16.
- the positive electrode 8 is joined to the filter 24 via the positive electrode lead 22.
- the filter 24 is connected to the inner cap 28.
- the inner cap 28 has a protrusion and is joined to the metal valve body 30 via the protrusion.
- the valve body 30 is connected to the terminal plate 32.
- the terminal plate 32 functions as the positive electrode terminal 2a.
- the negative electrode 10 is joined to the bottom of the exterior body 16 via the negative electrode lead 26.
- the bottom of the exterior body 16 functions as the negative electrode terminal 2b.
- a gasket 34 is interposed between the sealing body and the exterior body 16 to insulate each other.
- the insulating plate 18 has a through hole 18a that communicates the space on the electrode group 14 side and the space on the filter 24 side.
- the filter 24 has a through hole 24a that communicates the space on the insulating plate 18 side and the space on the inner cap 28 side.
- the inner cap 28 has a through hole 28a that communicates the space on the filter 24 side and the space on the valve body 30 side.
- the valve body 30 breaks. As a result, the gas in the exterior body 16 reaches the terminal plate 32 through the through hole 18a, the through hole 24a, the through hole 28a, and the crevice of the valve body 30.
- the terminal plate 32 has a through hole 32a that communicates the space on the valve body 30 side with the outside of the exterior body 16. Therefore, the gas that has reached the terminal plate 32 is discharged to the outside of the exterior body 16 through the through hole 32a.
- the exhaust unit 36 is configured.
- the structure of the exhaust unit 36 is not limited to the above. Further, the exhaust portion 36 may be provided on the exterior body 16.
- the plurality of power storage devices 2 are laid in the case 6 in a predetermined posture.
- the posture of the plurality of power storage devices 2 is determined so that the positive electrode terminals 2a and the negative electrode terminals 2b are arranged in a predetermined first direction X. Then, they are arranged in a matrix in the first direction X and the second direction Y.
- the second direction Y is a direction orthogonal to the first direction X.
- FIG. 4 shows how a plurality of power storage devices 2 are laid so as to have two columns in the first direction X and a plurality of rows in the second direction Y. Two power storage devices 2 are arranged in the first row, and three power storage devices 2 are arranged in the second row. Further, the posture of each power storage device 2 is determined so that the positive electrode terminal 2a faces the center side of the case 6 in the first direction X. The positive electrode terminals 2a of the two power storage devices 2 in the first row and the two power storage devices 2 in the second row face each other.
- a positive electrode side current collector plate (not shown) is connected to the positive electrode terminal 2a of each power storage device 2, and a negative electrode side current collector plate (not shown) is connected to the negative electrode terminal 2b of each power storage device 2. Will be done. As a result, each power storage device 2 is electrically connected.
- the fire extinguishing agent sheet 60 is a plate-like body composed of an aggregate of a plurality of fire extinguishing agent powders.
- the fire extinguishing agent powder is composed of known components such as primary ammonium phosphate, sodium hydrogen carbonate, potassium hydrogen carbonate, potassium acetate, and tripotassium citrate.
- the fire extinguishing agent sheet 60 can be obtained, for example, by kneading the fire extinguishing agent powder and the binder and shaping the fire extinguishing agent sheet 60. Alternatively, the fire extinguishing agent sheet 60 can be obtained by compression molding of the fire extinguishing agent powder.
- FIG. 6 is a perspective view of the fire extinguishing agent sheet 60.
- the fire extinguishing agent sheet 60 has a through hole 62 penetrating itself in the thickness direction.
- the fire extinguishing agent sheet 60 of the present embodiment is square and has a plurality of through holes 62 arranged in a matrix. Each through hole 62 is circular when viewed from the normal direction of the fire extinguishing agent sheet 60.
- the shapes of the fire extinguishing agent sheet 60 and the through hole 62 can be changed as appropriate.
- the thickness of the fire extinguishing agent sheet 60 is, for example, 0.5 mm to 10 mm. By setting the thickness of the fire extinguishing agent sheet 60 to 0.5 mm or more, it is possible to suppress a shortage of fire extinguishing agent powder. Further, by setting the thickness of the fire extinguishing agent sheet 60 to 10 mm or less, it is possible to prevent the fire extinguishing agent powder inside the fire extinguishing agent sheet 60 from being left unreacted and wasted.
- the hole diameter of the through hole 62 is, for example, 1 mm to 3 mm. By setting the hole diameter of the through hole 62 to 1 mm or more, it is possible to prevent the pressure loss when the exhaust gas passes through the through hole 62 from becoming excessive.
- the thickness of the fire extinguishing agent sheet 60 is, for example, an average thickness.
- the hole diameter of the through hole 62 is, for example, the distance between the two points at the portion where the distance between the two points on the outer circumference of the through hole 62 when viewed from the normal direction of the fire extinguishing agent sheet 60 is maximized.
- Case 6 is a container for accommodating the power storage device 2 and the fire extinguishing agent sheet 60.
- Case 6 of the present embodiment has a first storage chamber 42 and a second storage chamber 44.
- the first accommodation chamber 42 and the second accommodation chamber 44 are separated by a wall portion 46.
- a plurality of power storage devices 2 are housed in the above-mentioned laying mode.
- the fire extinguishing agent sheet 60 is housed in the second storage chamber 44. Therefore, the fire extinguishing agent powder is arranged in the case 6 in an exposed state.
- the peripheral portion of the fire extinguishing agent sheet 60 is fixed to the wall surface of the case 6 by adhesion or the like.
- the fire extinguishing agent sheet 60 may be fixed by providing a groove on the wall surface of the case 6 and inserting the peripheral edge portion of the fire extinguishing agent sheet 60 into the groove.
- the fire extinguishing agent sheet 60 is arranged in the case 6 so that the gas discharged from the power storage device 2 flows through the through hole 62.
- the case 6 of the present embodiment has a through hole 48 in the wall portion 46 that separates the first storage chamber 42 and the second storage chamber 44. The internal space of the first accommodation chamber 42 and the internal space of the second accommodation chamber 44 are communicated with each other through the through hole 48. As a result, the gas ejected from the power storage device 2 can flow into the second storage chamber 44 through the through hole 48 and flow through the through hole 62 of the fire extinguishing agent sheet 60.
- the fire extinguishing agent sheet 60 is arranged so as to block the flow of the exhaust gas, the exhaust gas can flow through the through hole 62, so that the increase in pressure loss due to the arrangement of the fire extinguishing agent sheet 60 is suppressed. can do.
- the fire extinguishing agent sheet 60 is a sheet body having a predetermined thickness. Therefore, the surface area of the fire extinguishing agent sheet 60 including the inner surface of the through hole 62 and the main surface of the fire extinguishing agent sheet 60 can be easily adjusted as compared with the powdered fire extinguishing agent.
- Case 6 of this embodiment has an opening 50.
- the opening 50 opens at least after the gas is discharged to connect the inside and outside of the case 6.
- the opening 50 is composed of a thin portion having a thickness thinner than the other portion provided on a part of the outer wall of the case 6.
- the opening 50 is opened by tearing the thin portion.
- each gas flow path 52 has an assembly portion 52a that aggregates with each other at least in a part. That is, each gas flow path 52 is one flow path in at least a part of the section.
- the second storage chamber 44 is provided so as to be in contact with the outer wall of the case 6. Further, the opening 50 is arranged so as to communicate the outside of the case 6 with the internal space of the second storage chamber 44. Therefore, the internal space of the second storage chamber 44 is communicated with the internal space of the first storage chamber 42 by the through hole 48, and is communicated with the outside of the case 6 by the opening 50. As a result, the internal space of the second accommodation chamber 44 forms a part of the gas flow path 52.
- the fire extinguishing agent sheet 60 is housed in the second storage room 44. Therefore, the fire extinguishing agent sheet 60 is arranged in the gas flow path 52.
- the fire extinguishing agent sheet 60 is arranged so as to block the upstream side of the gas flow path 52 (that is, the exhaust portion 36 side) and the downstream side of the gas flow path 52 (that is, the opening 50 side). ..
- the fire extinguishing agent sheet 60 is arranged so that one main surface faces the upstream side of the gas flow path 52 and the other main surface faces the downstream side of the gas flow path 52, and the entire peripheral edge portion is a case. 6 or fixed to the wall 46.
- the through hole 62 extends from one main surface of the fire extinguishing agent sheet 60 to the other main surface. Therefore, the exhaust gas can flow from the exhaust portion 36 side to the opening 50 side through the through hole 62. Therefore, the through hole 62 constitutes a part of the gas flow path 52.
- the gas discharged from the exhaust portion 36 of each power storage device 2 reaches the opening 50 from the through hole 48 via the inside of the second accommodating chamber 44. Therefore, the internal space of the second accommodating chamber 44 constitutes the gathering portion 52a of the gas flow path 52. Therefore, the fire extinguishing agent sheet 60 in the second storage chamber 44 is arranged in the gathering portion 52a.
- the fire extinguishing agent sheet 60 may be arranged so as to cover the opening 50.
- the wall portion 46 may be omitted.
- the fire extinguishing agent sheet 60 can be fixed to the peripheral edge portion of the opening 50 by, for example, adhesion.
- a plurality of fire extinguishing agent sheets 60 may be arranged at a plurality of locations in the case 6. Further, a plurality of fire extinguishing agent sheets 60 may be arranged at predetermined intervals. In this case, the adjacent fire extinguishing agent sheets 60 may have through holes 62 at different positions from each other. Due to the arrangement of the through holes 62, the gas meanders as it passes through each fire extinguishing agent sheet 60. As a result, the flow path of the gas can be extended, and the gas can be further cooled before being discharged to the outside of the case 6.
- the entire peripheral edge of the fire extinguishing agent sheet 60 is the inner wall of the second storage chamber 44 when viewed from the traveling direction of the gas flowing in the vicinity of the fire extinguishing agent sheet 60 (the direction perpendicular to the main surface of the fire extinguishing agent sheet 60). It does not have to be in contact.
- the power storage pack 1 includes at least one power storage device 2 having an exterior body 16 and an exhaust unit 36 for discharging gas generated inside the exterior body 16, and a plurality of power storage devices 2. It includes a fire extinguishing agent sheet 60 which is composed of an aggregate of fire extinguishing agent powder and has a through hole 62, and a case 6 which houses a power storage device 2 and a fire extinguishing agent sheet 60. Then, the fire extinguishing agent sheet 60 is arranged so that the gas discharged from the power storage device 2 flows through the through hole 62. As a result, the gas discharged from the power storage device 2 can be brought into contact with the fire extinguishing agent powder, and ignition caused by the exhaust gas can be suppressed by the negative catalytic action of the fire extinguishing agent powder.
- the fire extinguishing agent powder In the conventional structure in which the fire extinguishing agent powder is ejected by breaking the fire extinguishing container, it takes time to break the container, so that there is a time lag between the discharge of gas and the ejection of the fire extinguishing agent. Therefore, the fire extinguishing action of the fire extinguishing agent powder may be delayed, and a sufficient fire extinguishing effect may not be obtained.
- the fire extinguishing powder has a very large specific surface area. Therefore, when the fire extinguishing agent powder is ejected, each fire extinguishing agent powder rapidly acts with the exhaust gas. Also, most of the fire extinguishing agent powder acts at once.
- the discharge of gas from the power storage device 2 generally continues for several seconds to several tens of seconds. Therefore, when the fire extinguishing agent powder is ejected, the fire extinguishing agent powder may be exhausted at the initial stage of gas discharge, and a sufficient fire extinguishing effect may not be obtained. Further, when the fire extinguishing agent powder is ejected, the unreacted fire extinguishing agent powder may be pressed by the exhaust gas and scattered, so that a sufficient fire extinguishing effect may not be obtained.
- the fire extinguishing agent powder is arranged in the case 6 in the state of the fire extinguishing agent sheet 60. Therefore, there is no need for a container to store the fire extinguishing agent powder. Therefore, the fire extinguishing agent powder can act on the discharge of the gas from the power storage device 2 without delay. Further, since the fire extinguishing agent powder that is closest to the surface of the fire extinguishing agent sheet 60 reacts with the gas in order, the consumption rate of the fire extinguishing agent powder can be delayed. Therefore, the fire extinguishing action of the fire extinguishing agent powder can be continued for a long time. In addition, it is possible to prevent the fire extinguishing agent powder from being extruded by the exhaust gas. Therefore, according to the present embodiment, a higher fire extinguishing effect can be obtained. Therefore, the reliability of the storage pack 1 can be improved.
- the exhaust gas flow is blocked by the fire extinguishing agent sheet, and a large pressure loss occurs in the exhaust gas flow.
- the internal pressure of the case may be excessively increased due to the pressure loss, and the case may be damaged.
- the exhaust gas may be discharged to the outside of the case by bypassing the fire extinguishing agent sheet having no through hole, and a sufficient fire extinguishing effect may not be obtained.
- the fire extinguishing agent sheet 60 is formed of the fire extinguishing agent powder, and the gas is circulated through the through hole 62 of the fire extinguishing agent sheet 60.
- the pressure loss when the exhaust gas is discharged to the outside of the case 6 can be reduced. Therefore, according to the present embodiment, damage to the case 6 can be suppressed, and a higher fire extinguishing effect can be obtained. Therefore, the reliability of the storage pack 1 can be improved.
- the thickness of the fire extinguishing agent sheet 60, the diameter and number of through holes 62, and the arrangement the magnitude of the pressure loss when the exhaust gas passes through the fire extinguishing agent sheet 60 and the contact area with the exhaust gas (that is, the exhaust gas)
- the amount of fire extinguishing agent powder acting on the gas can be adjusted flexibly.
- the case 6 of the present embodiment has an opening 50 that opens at least after the gas is discharged and connects the inside and the outside of the case 6, and a gas flow path 52 from the exhaust portion 36 to the opening 50 is formed in the case 6. Will be done. Then, the fire extinguishing agent sheet 60 is arranged in the gas flow path 52. As a result, the gas discharged from the power storage device 2 can be easily brought into contact with the fire extinguishing agent sheet 60. Therefore, a higher fire extinguishing effect can be obtained.
- the power storage pack 1 includes a plurality of power storage devices 2. Therefore, a plurality of gas flow paths 52 from the exhaust portion 36 of each power storage device 2 to the opening 50 are formed in the case 6. Further, the plurality of gas flow paths 52 have a gathering portion 52a that gathers with each other. Then, the fire extinguishing agent sheet 60 is arranged in the collecting portion 52a. As a result, the number of power storage devices 2 to be extinguished by one fire extinguishing agent sheet 60 can be increased. Therefore, the number of fire extinguishing agent sheets 60 arranged in the case 6 can be reduced. As a result, it is possible to suppress the increase in size of the storage pack 1. Alternatively, the number of power storage devices 2 that can be accommodated in the case 6 can be increased. In addition, the amount of fire extinguishing agent powder used can be reduced.
- the fire extinguishing agent sheet 60 when the fire extinguishing agent sheet 60 is arranged so as to cover the opening 50, even if the gas flow path 52 extending from each power storage device 2 does not have the collecting portion 52a, one fire extinguishing agent sheet 60 Can increase the number of power storage devices 2 responsible for extinguishing a fire. Therefore, the number of fire extinguishing agent sheets 60 arranged in the case 6 can be reduced. In addition, the degree of freedom in arranging the power storage device 2 can be increased.
- FIG. 7 is a cross-sectional view schematically showing the storage pack 1 according to the fourth embodiment. In FIG. 7, the illustration of the internal structure of the power storage device 2 is omitted.
- the power storage pack 1 includes a plurality of power storage devices 2, a fire extinguishing agent sheet 60, and a case 6.
- the plurality of power storage devices 2 are laid in the case 6 in a predetermined posture.
- a plurality of power storage devices 2 are arranged in a matrix of 3 rows and 2 columns in the first direction X and the second direction Y. Further, the power storage device 2 in the first row and the power storage device 2 in the second row are arranged so that the positive electrode terminals 2a face each other. That is, the posture of each power storage device 2 is determined so that the positive electrode terminal 2a faces the center side of the case 6 in the first direction X.
- the case 6 has a space sandwiched between the group of the power storage device 2 in the first row and the group of the power storage device 2 in the second row in the central portion in the first direction X.
- the exhaust unit 36 of each power storage device 2 is communicated with this space. Therefore, the gas generated inside each power storage device 2 is discharged from the exhaust unit 36 into this space. Therefore, this space constitutes a shared exhaust region 54 in which gas is discharged from each power storage device 2.
- the shared exhaust region 54 is divided by, for example, the surface of the plurality of power storage devices 2 on the positive electrode terminal 2a side and the two wall surfaces of the case 6 facing each other in the directions orthogonal to the first direction X and the second direction Y. Is.
- the fire extinguishing agent sheet 60 composed of an aggregate of a plurality of fire extinguishing agent powders is arranged in the shared exhaust area 54.
- the fire extinguishing agent sheet 60 is arranged so that one main surface faces the group side of the power storage device 2 in the first row and the other main surface faces the group side of the power storage device 2 in the second row.
- the fire extinguishing agent sheet 60 is adhered to, for example, the wall surface of the case 6 and fixed to the shared exhaust region 54.
- the fire extinguishing agent sheet 60 in the shared exhaust region 54 the gas discharged from each power storage device 2 can flow through the through hole 62 of the fire extinguishing agent sheet 60.
- the arrangement of the fire extinguishing agent sheet 60 in the shared exhaust region 54 can be regarded as the arrangement of the fire extinguishing agent sheet 60 in the gas flow path 52 of the gas discharged from each power storage device 2.
- the same effect as that of the third embodiment can be obtained.
- the fire extinguishing agent sheet 60 so as to face the exhaust portion 36 of the power storage device 2, the gas discharged from the power storage device 2 can be easily flowed into the through hole 62 of the fire extinguishing agent sheet 60. ..
- the number and shape of the fire extinguishing agent sheet 60 arranged in the case 6 and the openings 50 included in the case 6 are not particularly limited.
- the outer shape of the power storage device 2 and the case 6, the internal structure of the power storage device 2, and the like are not particularly limited.
- This disclosure can be used for storage packs.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
Description
図1は、実施の形態1に係る蓄電パックを模式的に示す断面図である。図1では、蓄電装置2の内部構造の図示を省略している。蓄電パック1は、複数の蓄電装置2と、多孔質部4と、ケース6と、を備える。
実施の形態2は、多孔質部4の配置を除き、実施の形態1と共通の構成を有する。以下、本実施の形態について実施の形態1と異なる構成を中心に説明し、共通する構成については簡単に説明するか、あるいは説明を省略する。図3は、実施の形態2に係る蓄電パック1を模式的に示す断面図である。図3では、蓄電装置2の内部構造の図示を省略している。
図4は、実施の形態3に係る蓄電パックを模式的に示す断面図である。図4では、蓄電装置2の内部構造の図示を省略している。蓄電パック1は、複数の蓄電装置2と、消火剤シート60と、ケース6と、を備える。
実施の形態4は、消火剤シート60の配置を除き、実施の形態3と共通の構成を有する。以下、本実施の形態について実施の形態3と異なる構成を中心に説明し、共通する構成については簡単に説明するか、あるいは説明を省略する。図7は、実施の形態4に係る蓄電パック1を模式的に示す断面図である。図7では、蓄電装置2の内部構造の図示を省略している。
Claims (10)
- 外装体、および前記外装体の内部で発生するガスを排出する排気部を有する、少なくとも1つの蓄電装置と、
複数の消火剤粒子が集合した構造を有し、内部に空隙を有する多孔質部と、
前記蓄電装置および前記多孔質部を収容するケースと、を備え、
各消火剤粒子は、複数の消火剤粉末の集合体であり、
前記多孔質部は、前記ガスが前記空隙を流れるように配置される、
蓄電パック。 - 前記ケースは、少なくとも前記ガスの排出後に開いて前記ケースの内外をつなぐ開口部を有し、前記排気部から前記開口部に至るガス流路がケース内に形成され、
前記多孔質部は、前記ガス流路に配置される、
請求項1に記載の蓄電パック。 - 前記蓄電パックは、複数の前記蓄電装置を備え、
各蓄電装置の前記排気部から前記開口部に至る複数の前記ガス流路がケース内に形成され、
複数の前記ガス流路は、互いに集合する集合部を有し、
前記多孔質部は、前記集合部に配置される、
請求項2に記載の蓄電パック。 - 前記多孔質部は、前記開口部を覆うように配置される、
請求項2または3に記載の蓄電パック。 - 前記蓄電パックは、複数の前記蓄電装置を備え、
前記ケースは、各蓄電装置の前記排気部が連通される共有排気領域を有し、
前記多孔質部は、前記共有排気領域に配置される、
請求項1乃至4のいずれか1項に記載の蓄電パック。 - 外装体、および前記外装体の内部で発生するガスを排出する排気部を有する、少なくとも1つの蓄電装置と、
複数の消火剤粉末の集合体で構成され、貫通孔を有する消火剤シートと、
前記蓄電装置および前記消火剤シートを収容するケースと、を備え、
前記消火剤シートは、前記ガスが前記貫通孔を流れるように配置される、
蓄電パック。 - 前記ケースは、少なくとも前記ガスの排出後に開いて前記ケースの内外をつなぐ開口部を有し、前記排気部から前記開口部に至るガス流路がケース内に形成され、
前記消火剤シートは、前記ガス流路に配置される、
請求項6に記載の蓄電パック。 - 前記蓄電パックは、複数の前記蓄電装置を備え、
各蓄電装置の前記排気部から前記開口部に至る複数の前記ガス流路がケース内に形成され、
複数の前記ガス流路は、互いに集合する集合部を有し、
前記消火剤シートは、前記集合部に配置される、
請求項7に記載の蓄電パック。 - 前記消火剤シートは、前記開口部を覆うように配置される、
請求項7または8に記載の蓄電パック。 - 前記蓄電パックは、複数の前記蓄電装置を備え、
前記ケースは、各蓄電装置の前記排気部が連通される共有排気領域を有し、
前記消火剤シートは、前記共有排気領域に配置される、
請求項6乃至9のいずれか1項に記載の蓄電パック。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021549046A JP7641584B2 (ja) | 2019-09-26 | 2020-09-25 | 蓄電パック |
| US17/634,047 US20220328926A1 (en) | 2019-09-26 | 2020-09-25 | Power storage pack |
| CN202080056615.XA CN114342025B (zh) | 2019-09-26 | 2020-09-25 | 蓄电包 |
| EP20869998.3A EP4037076A4 (en) | 2019-09-26 | 2020-09-25 | ENERGY STORAGE BLOCK |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019176099 | 2019-09-26 | ||
| JP2019-176099 | 2019-09-26 | ||
| JP2019176100 | 2019-09-26 | ||
| JP2019-176100 | 2019-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021060472A1 true WO2021060472A1 (ja) | 2021-04-01 |
Family
ID=75165258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2020/036286 Ceased WO2021060472A1 (ja) | 2019-09-26 | 2020-09-25 | 蓄電パック |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220328926A1 (ja) |
| EP (1) | EP4037076A4 (ja) |
| JP (1) | JP7641584B2 (ja) |
| CN (1) | CN114342025B (ja) |
| WO (1) | WO2021060472A1 (ja) |
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| WO2022080174A1 (ja) * | 2020-10-14 | 2022-04-21 | 三洋電機株式会社 | 密閉電池 |
| JP2023548176A (ja) * | 2021-04-14 | 2023-11-15 | エルジー エナジー ソリューション リミテッド | 電池モジュールおよびこれを含む電池パック |
| JP2023553059A (ja) * | 2021-10-01 | 2023-12-20 | エルジー エナジー ソリューション リミテッド | 二次電池用リードフィルム及びこれを備える二次電池 |
| JP2025090490A (ja) * | 2023-12-05 | 2025-06-17 | 中華電信股▲分▼有限公司 | バッテリ装置及びその燃焼抑制方法 |
| EP4542738A3 (en) * | 2021-12-23 | 2025-07-02 | Skeleton Technologies GmbH | A lid assembly for an energy storage cell, kit-of-parts and energy storage cell comprising the lid assembly |
| WO2025243977A1 (ja) * | 2024-05-20 | 2025-11-27 | Toppanホールディングス株式会社 | 電池パック |
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| EP4621949A1 (en) * | 2024-03-20 | 2025-09-24 | Airbus S.A.S. | Quenching arrangment, energy storage device and vehicle comprising same |
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2020
- 2020-09-25 EP EP20869998.3A patent/EP4037076A4/en active Pending
- 2020-09-25 US US17/634,047 patent/US20220328926A1/en not_active Abandoned
- 2020-09-25 CN CN202080056615.XA patent/CN114342025B/zh active Active
- 2020-09-25 JP JP2021549046A patent/JP7641584B2/ja active Active
- 2020-09-25 WO PCT/JP2020/036286 patent/WO2021060472A1/ja not_active Ceased
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| WO2012029669A1 (ja) * | 2010-09-02 | 2012-03-08 | 株式会社Gsユアサ | 電池及び電池システム |
| JP2013187089A (ja) * | 2012-03-08 | 2013-09-19 | Kurita Water Ind Ltd | 蓄電デバイスの発火防止材、この発火防止材を含む発火防止システム、およびこの発火防止システムを用いた蓄電システム |
| JP2016110881A (ja) * | 2014-12-08 | 2016-06-20 | 三菱重工業株式会社 | 電池モジュール |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022080174A1 (ja) * | 2020-10-14 | 2022-04-21 | 三洋電機株式会社 | 密閉電池 |
| JP2023548176A (ja) * | 2021-04-14 | 2023-11-15 | エルジー エナジー ソリューション リミテッド | 電池モジュールおよびこれを含む電池パック |
| JP7732709B2 (ja) | 2021-04-14 | 2025-09-02 | エルジー エナジー ソリューション リミテッド | 電池モジュールおよびこれを含む電池パック |
| JP2023553059A (ja) * | 2021-10-01 | 2023-12-20 | エルジー エナジー ソリューション リミテッド | 二次電池用リードフィルム及びこれを備える二次電池 |
| JP7820375B2 (ja) | 2021-10-01 | 2026-02-25 | エルジー エナジー ソリューション リミテッド | 二次電池用リードフィルム及びこれを備える二次電池 |
| EP4542738A3 (en) * | 2021-12-23 | 2025-07-02 | Skeleton Technologies GmbH | A lid assembly for an energy storage cell, kit-of-parts and energy storage cell comprising the lid assembly |
| JP2025090490A (ja) * | 2023-12-05 | 2025-06-17 | 中華電信股▲分▼有限公司 | バッテリ装置及びその燃焼抑制方法 |
| JP7777911B2 (ja) | 2023-12-05 | 2025-12-01 | 中華電信股▲分▼有限公司 | バッテリ装置及びその燃焼抑制方法 |
| WO2025243977A1 (ja) * | 2024-05-20 | 2025-11-27 | Toppanホールディングス株式会社 | 電池パック |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114342025A (zh) | 2022-04-12 |
| CN114342025B (zh) | 2025-08-26 |
| US20220328926A1 (en) | 2022-10-13 |
| JPWO2021060472A1 (ja) | 2021-04-01 |
| EP4037076A4 (en) | 2023-03-08 |
| EP4037076A1 (en) | 2022-08-03 |
| JP7641584B2 (ja) | 2025-03-07 |
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