WO2024045457A1 - Dispositif de stockage d'énergie - Google Patents

Dispositif de stockage d'énergie Download PDF

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Publication number
WO2024045457A1
WO2024045457A1 PCT/CN2022/143956 CN2022143956W WO2024045457A1 WO 2024045457 A1 WO2024045457 A1 WO 2024045457A1 CN 2022143956 W CN2022143956 W CN 2022143956W WO 2024045457 A1 WO2024045457 A1 WO 2024045457A1
Authority
WO
WIPO (PCT)
Prior art keywords
storage device
energy storage
battery module
protective strip
protective
Prior art date
Application number
PCT/CN2022/143956
Other languages
English (en)
Chinese (zh)
Inventor
霍琪琪
Original Assignee
厦门海辰储能科技股份有限公司
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 厦门海辰储能科技股份有限公司 filed Critical 厦门海辰储能科技股份有限公司
Publication of WO2024045457A1 publication Critical patent/WO2024045457A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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 application relates to the field of new energy technology, and in particular to an energy storage device.
  • the energy storage device usually includes a box and a battery module arranged in the box. During the use of the energy storage device, the energy storage device may fall. When the energy storage device falls, the collision force will be transmitted to the battery module through the box, causing the battery module to receive a greater collision force, which in turn causes the battery module to collapse. The group is invalid.
  • the embodiment of the present application discloses an energy storage device that can reduce the collision force suffered by a battery module, thereby avoiding the failure of the battery module.
  • an energy storage device which includes:
  • At least one battery module At least one battery module
  • a plurality of side plates are arranged around the bottom plate, and are enclosed with the bottom plate to form an accommodation cavity, and the at least one battery module is arranged in the accommodation cavity;
  • At least one protective strip is provided on the bottom plate and is located between the battery module and the first side plate.
  • the protective strip is perpendicular to the first side plate.
  • the first side plate has multiple any of the side panels.
  • the battery module can be protected by being enclosed by multiple side plates and bottom plates, so that the battery module is placed in a
  • the environment is a relatively closed environment, so that the impact of the external environment on the battery module can be avoided or reduced.
  • the protective strip is provided on the bottom plate and between the battery module and the first side plate, when the energy storage device falls and the first side plate collides with the ground, the collision force will pass through the first side plate and the first side plate in turn.
  • the protective strip is transmitted to the battery module.
  • the protective strip can absorb part of the collision force, making the collision force transmitted to the battery module smaller, and thus Battery module failure can be avoided to a certain extent.
  • the protective strips can also enhance the strength of the base plate, thereby preventing the base plate from being severely deformed due to collision force.
  • the protective strip can absorb as much collision force as possible, which in turn can make the collision force transmitted to the battery module smaller, thereby better preventing the battery from being damaged. Module failure occurs.
  • the box further includes:
  • At least one first separation bar is located between the battery module and the side panel.
  • the first separator strip By arranging at least one first separator strip between the battery module and the side panel, the first separator strip can prevent the collision force from acting directly on the battery module. Therefore, it can protect the battery module to a certain extent. This can better avoid battery module failure.
  • the energy storage device includes a plurality of battery modules, and the box further includes a second partition bar located between the plurality of battery modules.
  • the second separation bar By arranging the second separation bar between the battery modules, the second separation bar can separate each battery module, making each battery module more independent and not affecting each other.
  • the first dividing bar is located between the battery module and the protective bar, and the first dividing bar is arranged perpendicularly to the protective bar.
  • the first separator strip By positioning the first separator strip between the battery module and the protective strip, the first separator strip can separate the protective strip from the battery module. On the one hand, it can prevent the protective strip from poking the battery module during deformation. On the other hand, the first separator bar can play a role in strengthening the strength of the bottom plate where the first separator bar is located, thereby preventing the battery module from being squeezed and damaged due to deformation of the bottom plate where the first separator bar is located. situation occurs.
  • both ends in the extension direction of the protective strip are connected to the first dividing strip and the first side plate respectively.
  • the protective strip By connecting the two ends in the extension direction of the protective strip to the first dividing strip and the first side plate respectively, the protective strip can be supported between the first side plate and the first dividing strip.
  • the first side plate and the first side plate are connected.
  • the collision force can be better transmitted directly to the protective strip through the first side plate, so that the protective strip can be better deformed and can better absorb the collision force, thereby better avoiding the battery module. Failure occurs.
  • the protective strip is welded to the bottom plate.
  • the connection between the protective strip and the bottom plate can be made more reliable, thereby preventing the protective strip from falling off the bottom plate.
  • the welding spots used to weld the protective strips to the bottom plate can also enhance the strength of the bottom plate, thus preventing the deformation of the bottom plate.
  • the protective strip is provided on the bottom plate through screws.
  • the box includes a plurality of protective strips, and the plurality of protective strips are spaced apart along the extension direction of the first side plate.
  • the protective strips can evenly absorb the collision force at various positions of the first side plate, so that the collision force transmitted to the battery module becomes more uniform. This can avoid local damage to the battery module caused by excessive local stress on the battery module.
  • a plurality of the protective strips are evenly spaced along the extension direction of the first side plate.
  • the arrangement density of the plurality of protective strips at both ends along the extension direction of the first side plate is greater than the arrangement density in the middle.
  • the protective strips can be placed near both ends of the first side plate.
  • the arrangement is relatively dense, and the location near the middle of the first side panel can be relatively sparse. In this way, more positions can be reserved for arranging circuits and liquid cooling tubes, making the protective strips more reasonable.
  • a buffer hole is provided on the protective strip along the extending direction of the protective strip.
  • the buffer hole can weaken the strength of the protective strip at the position of the buffer hole.
  • the protective strip can absorb part of the collision force, thereby reducing the collision force transmitted to the battery module, thus preventing battery module failure. situation occurs.
  • the number of buffer holes is multiple.
  • the size of the buffer hole located in the middle of the protective strip is larger than the size of the buffer holes located at both ends of the protective strip.
  • the middle part of the protective strip can be more easily deformed than the two ends. In this way, when the energy storage device falls, , the middle part of the protective strip can be deformed first, thus preventing the two ends of the protective strip from deforming and lifting, causing damage to the battery module.
  • the buffer hole is a waist-shaped hole.
  • the extension direction of the waist-shaped hole is the same as the extension direction of the protective strip.
  • the protective strip at the position of the buffer hole can be deformed more easily and absorb the collision force. Therefore, the failure of the battery module can be better avoided. situation occurs.
  • the battery module is arranged in the accommodation cavity. Therefore, the battery module can be enclosed by multiple side plates and bottom plates for protection, so that the battery module can be protected.
  • the environment is a relatively closed environment, so that the impact of the external environment on the battery module can be avoided or reduced.
  • the protective strip is provided on the bottom plate and between the battery module and the first side plate, when the energy storage device falls and the first side plate collides with the ground, the collision force will pass through the first side plate and the first side plate in turn.
  • the protective strip is transmitted to the battery module.
  • the protective strip can absorb part of the collision force, making the collision force transmitted to the battery module smaller, and thus Battery module failure can be avoided to a certain extent.
  • the protective strips can also enhance the strength of the base plate, thereby preventing the base plate from being severely deformed due to collision force.
  • the extending direction of the protective strip can be made in the same direction as the direction of the collision force.
  • the protective strip can absorb as much collision force as possible, thereby allowing the protective strip to be transmitted to the battery module.
  • the collision force becomes smaller, which can better avoid battery module failure.
  • Figure 1 is a schematic structural diagram of an energy storage device provided by an embodiment of the present application.
  • Figure 2 is an exploded view of the energy storage device in Figure 1;
  • Figure 3 is a schematic structural diagram of a box provided by an embodiment of the present application (part of the structure is omitted);
  • Figure 4 is a schematic structural diagram of a protective strip provided by an embodiment of the present application.
  • Figure 5 is a schematic structural diagram of a box provided by an embodiment of the present application.
  • FIG. 6 is an exploded view of the box in FIG. 5 .
  • first means two or more.
  • the energy storage device 100 includes: at least one battery module 1 and a box 2 .
  • the box 2 includes a bottom plate 21, a plurality of side plates 22 and at least one protective strip 23.
  • the plurality of side plates 22 are arranged around the bottom plate 21 and enclose with the bottom plate 21 to form an accommodation cavity 20.
  • At least one battery module 1 Disposed in the accommodation cavity 20, the protective strip 23 is disposed on the bottom plate 21 and between the battery module 1 and the first side plate 221.
  • the protective strip 23 is perpendicular to the first side plate 221.
  • the first side plate 221 has multiple sides. Either side panel in panel 22.
  • the battery module 1 since the plurality of side plates 22 and the bottom plate 21 are enclosed to form the accommodation cavity 20, the battery module 1 is disposed in the accommodation cavity 20. Therefore, the battery module 1 can be enclosed by the plurality of side plates 22 and the bottom plate. 21 are enclosed for protection, so that the environment in which the battery module 1 is located is a relatively closed environment. In this way, the impact of the external environment on the battery module 1 can be avoided or reduced.
  • the protective strip 23 is provided on the bottom plate 21 and between the battery module 1 and the first side plate 221, when the energy storage device falls and the first side plate 221 collides with the ground, the collision force will pass through in turn.
  • the first side plate 221 and the protective strip 23 are transmitted to the battery module 1.
  • the protective strip 23 can absorb part of the collision force, so that the impact force is transmitted to the battery module 1.
  • the collision force to the battery module becomes smaller, which can avoid battery module failure to a certain extent.
  • the protective strips 23 can also enhance the strength of the bottom plate 21, thereby preventing the bottom plate 21 from being severely deformed due to collision force.
  • the direction of the collision force received by the first side plate 221 is usually perpendicular to the first side plate 221 . Therefore, by making the protective strip 23 be in contact with the first side plate 221 , The plate 221 is vertical, so that the extension direction of the protective strip 23 is the same as the direction of the collision force. In this way, the protective strip 23 can absorb as much collision force as possible, thereby making the collision force transmitted to the battery module smaller. This can better avoid battery module failure.
  • the above-mentioned protective strip 23 can be arranged on the bottom plate 21 in various ways.
  • the protective strip 23 can be arranged on the bottom plate 21 through screws.
  • the protective strip 23 can also be arranged on the bottom plate 21 in other ways.
  • the protective strip 23 can be welded to the bottom plate 21 .
  • the connection relationship between the protective strip 23 and the bottom plate 21 can be made more reliable, thereby preventing the protective strip 23 from falling off the bottom plate 21.
  • the welding spots used to weld the protective strip 23 to the bottom plate 21 can also enhance the strength of the bottom plate 21 , thereby preventing the bottom plate 21 from deforming.
  • the box 2 includes a plurality of protective strips 23 , which are spaced apart along the extension direction of the first side plate 221 (the Y-axis direction in FIG. 3 ).
  • the protective strips 23 can evenly absorb the collision force at various positions of the first side plate 221 , so that the collision force transmitted to the battery module becomes smaller. It is more uniform, which can avoid the local damage to the battery module caused by excessive local force on the battery module 1.
  • the number of protective strips 23 may be four or other numbers, which is not limited in the embodiment of the present application.
  • the plurality of protective strips 23 may be evenly spaced along the extension direction of the first side plate 221 or may be unevenly spaced, which is not limited in the embodiment of the present application.
  • the protective strips 23 can be arranged densely near the two ends of the first side plate 221, and sparsely arranged near the middle of the first side plate 221. In this way, more can be reserved.
  • the position is used to arrange circuits and liquid cooling pipes, making the protective strip 23 more reasonable.
  • the protective strip 23 is provided with a plurality of buffer holes 231 .
  • the buffer hole 231 can weaken the strength of the protective strip 23 at the location of the buffer hole 231. In this way, when the energy storage device falls and the first side plate 221 is subject to a collision force, The protective strip 23 can deform at the location of its own buffer hole 231. It can be understood that during the deformation process, the protective strip 23 can absorb part of the collision force, thereby causing the collision force transmitted to the battery module to change. Small, thus avoiding battery module failure.
  • the size of the buffer hole 231 located in the middle of the protective strip 23 is larger than the size of the buffer holes 231 located at both ends of the protective strip 23 .
  • the middle part of the protective strip 23 can be more easily deformed than the two ends. In this way, When the energy storage device falls, the middle part of the protective strip 23 can be deformed first. In this way, the two ends of the protective strip 23 can be prevented from deforming and rising, causing damage to the battery module.
  • the method of absorbing the collision force by arranging the buffer holes 231 on the protective strip 23 is very ingenious and has a simple structure. Therefore, the manufacturing cost of the protective strip 23 can be reduced to a certain extent.
  • the buffer hole 231 is a waist-shaped hole, an extension of the waist-shaped hole.
  • the direction is the same as the extension direction of the protective strip 23 .
  • the size of the buffer hole 231 can be designed according to the overall weight of the energy storage device 100, so that the size of the buffer hole 231 matches the overall weight of the energy storage device 100, so that When the energy storage device 100 falls, the protective strip 23 at the location of the buffer hole 231 can deform, thereby preventing the battery module from failing.
  • the box 2 further includes: at least one first partition bar 241 located between the battery module 1 and the side plate 22 .
  • the first partition bar 241 can prevent the collision force from acting directly on the battery module 1 , thus protecting the battery to a certain extent.
  • the function of module 1 can better avoid battery module failure.
  • the energy storage device includes a plurality of battery modules 1
  • the box 2 further includes a second partition bar 242 located between the plurality of battery modules 1 .
  • the second separation bars 242 can separate each battery module 1 , making each battery module 1 more independent and not affecting each other.
  • the first separation bar 241 is located between the battery module 1 and the protection bar 23 , and the first separation bar 241 and the protection bar 23 are arranged vertically.
  • the first separating bar 241 By arranging the first separating bar 241 to be located between the battery module 1 and the protective bar 23 , the first separating bar 241 can separate the protective bar 23 from the battery module 1 . On the one hand, it can prevent the protective bar 23 from being deformed. The battery module 1 is stabbed. On the other hand, the first partition bar 241 can play a role in strengthening the bottom plate 21 where the first partition bar 241 is located, thereby preventing the first partition bar 241 from being damaged. The bottom plate 21 deforms, causing the battery module 1 to be squeezed and damaged.
  • both ends in the extension direction of the protective strip 23 are connected to the first partition strip 241 and the first side plate 221 respectively.
  • the protective strip 23 can be supported between the first side plate 221 and the first dividing strip 241, and the energy storage device
  • the collision force can be better transmitted directly to the protective strip 23 through the first side plate 221, so that the protective strip 23 can be better deformed, and thus can better absorb the collision. power, thus better avoiding battery module failure.
  • the battery module 1 is disposed in the accommodation cavity 20. Therefore, the battery module 1 can be enclosed by the plurality of side plates 22 and the bottom plate 21. Enclosed for protection, the environment in which the battery module 1 is located is a relatively closed environment. In this way, the impact of the external environment on the battery module 1 can be avoided or reduced.
  • the protective strip 23 is provided on the bottom plate 21 and between the battery module 1 and the first side plate 221, when the energy storage device falls and the first side plate 221 collides with the ground, the collision force will pass through in turn.
  • the first side plate 221 and the protective strip 23 are transmitted to the battery module.
  • the protective strip 23 can absorb part of the collision force, so that it is transmitted to the battery.
  • the collision force of the module becomes smaller, which can avoid battery module failure to a certain extent.
  • the protective strips 23 can also enhance the strength of the bottom plate 21, thereby preventing the bottom plate 21 from being severely deformed due to collision force.
  • the extending direction of the protective strip 23 can be made in the same direction as the direction of the collision force. In this way, the protective strip 23 can absorb as much collision force as possible, thereby allowing the protective strip 23 to be transmitted to The collision force of the battery module becomes smaller, which can better avoid battery module failure.

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

Abstract

La présente demande divulgue un dispositif de stockage d'énergie (100). Le dispositif de stockage d'énergie (100) comprend : au moins un module de batterie (1) ; et un corps de boîte (2), comprenant : une plaque inférieure (21) ; une pluralité de plaques latérales (22) agencées à la périphérie de la plaque inférieure (21) et définissant une cavité de réception (20) avec la plaque inférieure (21), le ou les modules de batterie (1) étant agencés dans la cavité de réception (20) ; et au moins une bande de protection (23), la bande de protection (23) étant agencée sur la plaque inférieure (21) et située entre le module de batterie (1) et une première plaque latérale (221), la bande de protection (23) étant perpendiculaire à la première plaque latérale (221), et la première plaque latérale (221) étant une quelconque plaque latérale (22) parmi la pluralité de plaques latérales (22). Selon le dispositif de stockage d'énergie (100) décrit dans la présente demande, une force de collision peut être absorbée au moyen de la bande de protection (23), de telle sorte que la force de collision sur le module de batterie (1) est réduite, ce qui permet d'éviter l'apparition d'une défaillance du module de batterie (1).
PCT/CN2022/143956 2022-08-31 2022-12-30 Dispositif de stockage d'énergie WO2024045457A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202222308213.3 2022-08-31
CN202222308213.3U CN218070076U (zh) 2022-08-31 2022-08-31 储能装置

Publications (1)

Publication Number Publication Date
WO2024045457A1 true WO2024045457A1 (fr) 2024-03-07

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Application Number Title Priority Date Filing Date
PCT/CN2022/143956 WO2024045457A1 (fr) 2022-08-31 2022-12-30 Dispositif de stockage d'énergie

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CN (1) CN218070076U (fr)
WO (1) WO2024045457A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN218070076U (zh) * 2022-08-31 2022-12-16 厦门海辰储能科技股份有限公司 储能装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180337377A1 (en) * 2017-05-16 2018-11-22 Shape Corp. Vehicle battery tray having tub-based integration
CN212257472U (zh) * 2020-04-15 2020-12-29 力神动力电池系统有限公司 一种高集成紧凑型电池系统
CN215816019U (zh) * 2021-06-04 2022-02-11 恒大新能源技术(深圳)有限公司 电池包箱体及电池包
CN217239626U (zh) * 2021-09-24 2022-08-19 北京新能源汽车股份有限公司 电池箱和新能源汽车
CN218070076U (zh) * 2022-08-31 2022-12-16 厦门海辰储能科技股份有限公司 储能装置
CN218070077U (zh) * 2022-08-31 2022-12-16 厦门海辰储能科技股份有限公司 底壳、模组箱体及电池模组

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180337377A1 (en) * 2017-05-16 2018-11-22 Shape Corp. Vehicle battery tray having tub-based integration
CN212257472U (zh) * 2020-04-15 2020-12-29 力神动力电池系统有限公司 一种高集成紧凑型电池系统
CN215816019U (zh) * 2021-06-04 2022-02-11 恒大新能源技术(深圳)有限公司 电池包箱体及电池包
CN217239626U (zh) * 2021-09-24 2022-08-19 北京新能源汽车股份有限公司 电池箱和新能源汽车
CN218070076U (zh) * 2022-08-31 2022-12-16 厦门海辰储能科技股份有限公司 储能装置
CN218070077U (zh) * 2022-08-31 2022-12-16 厦门海辰储能科技股份有限公司 底壳、模组箱体及电池模组

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