WO2012081137A1 - 電池パック - Google Patents
電池パック Download PDFInfo
- Publication number
- WO2012081137A1 WO2012081137A1 PCT/JP2011/003753 JP2011003753W WO2012081137A1 WO 2012081137 A1 WO2012081137 A1 WO 2012081137A1 JP 2011003753 W JP2011003753 W JP 2011003753W WO 2012081137 A1 WO2012081137 A1 WO 2012081137A1
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- WIPO (PCT)
- Prior art keywords
- frame
- battery
- frame body
- battery pack
- battery module
- Prior art date
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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
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
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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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
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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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- 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 in which a plurality of battery modules are stacked.
- a battery pack in which a plurality of batteries are accommodated in a case so that a predetermined voltage and capacity can be output is widely used as a power source for various devices and vehicles.
- a technology is adopted that can support a wide variety of applications by connecting general-purpose batteries in parallel and in series, modularizing assembled batteries that output a predetermined voltage and capacity, and combining these battery modules in various ways. I'm starting.
- This modularization technology improves the workability when assembling the battery pack and improves the performance of the battery stored in the battery module by improving the performance of the battery accommodated in the battery module. It has various merits, such as an improved degree of freedom when mounted in a designated space. It is also expected to be applied as a power storage system linked to a solar power generation system.
- the safety valve is activated and high temperature gas is released outside the battery, if the surrounding battery is exposed to the high temperature gas, it will return to a normal battery. May affect and cause chain degradation.
- Patent Document 1 discloses that the gas discharge part of each battery housed in the battery pack is connected to the exhaust duct, and the high-temperature gas released from the battery in an abnormal state is circulated in the exhaust duct. An exhaust mechanism for discharging the battery pack to the outside of the battery pack is described. Thereby, since the exhaust route of gas is regulated by the exhaust duct, the gas whose temperature has decreased can be discharged to the outside while preventing the gas from burning in contact with oxygen.
- a battery module that outputs a predetermined voltage and capacity can be applied to a wide variety of uses by configuring a battery pack (storage unit) in various combinations.
- the battery module is provided with an exhaust duct that discharges abnormal gas from the battery to the outside
- the battery pack is configured by combining a plurality of battery modules
- the gas discharged from the exhaust duct is still in a high temperature state
- the surrounding battery modules exposed to the high temperature gas may have a thermal effect.
- the present invention has been made in view of the above points, and the main object of the present invention is a battery pack in which a plurality of battery modules are stacked, and is adapted to a modularization technique capable of constructing an exhaust path with a simple configuration. It is to provide a highly safe battery pack.
- the present invention provides a battery pack in which a plurality of battery modules are stacked, the battery pack being fixed to a frame in which a hollow frame body is framed, and a gas provided in the battery module.
- the exhaust port is connected to the intake port provided on the frame, and the gas discharged from the battery module exhaust port is exhausted to the outside through the hollow part of the frame through the exhaust port provided on the frame.
- the exhaust path of the gas discharged from the discharge port of the battery module can also be used as a hollow frame for fixing the battery pack, so that the exhaust path can be constructed with a simple structure and modularized.
- a highly safe battery pack suitable for the technology can be realized.
- the exhaust path of the gas from the intake port to the exhaust port by adjusting the arrangement position of the intake port and the exhaust port or the combination of the frames constituting the frame Can be lengthened.
- the battery pack according to the present invention is a battery pack in which a plurality of battery modules are stacked.
- the battery module is provided on a case in which a plurality of unit cells are accommodated and one side of the case, and is discharged from the unit cells.
- a discharge port for discharging the gas to the outside of the case The battery pack is fixed to a frame in which a hollow frame is framed, and the discharge port of the battery module is connected to an intake port provided in a part of the frame, and is discharged from the discharge port of the battery module.
- the discharged gas passes through the hollow portion of the frame and is discharged to the outside from an exhaust port provided in a part of the frame.
- the frame includes an upper frame body and a lower frame body in the stacking direction of the battery modules, and a vertical frame body that connects the upper frame body and the lower frame body, and the battery pack includes a plurality of frames. It further has an exhaust duct that connects each discharge port of the battery module in the stacking direction, and the discharge port of the exhaust duct is connected to the intake port provided at the lower end of the lower frame or vertical frame. The gas discharged from the discharge port of the battery module passes through the exhaust duct, the lower frame body of the frame and the hollow portion of the vertical frame body, and then passes through the exhaust port provided at the upper end of the upper frame body or the vertical frame body. To be discharged.
- a highly safe battery pack that can construct an exhaust path with a simple configuration and that is suitable for modularization technology.
- FIG. 1 It is sectional drawing which showed typically the structure of the battery used for the battery module in one Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is the figure which showed typically the structure of the battery module which comprises the battery pack in one Embodiment of this invention, (a) is sectional drawing, (b) is a perspective view. (A) is the perspective view which showed typically the structure of the battery pack comprised by laminating
- FIG. 1 is a cross-sectional view schematically showing a configuration of a battery 10 used in a battery module according to an embodiment of the present invention.
- the battery used in the battery module of the present invention may be a battery that can be used alone as a power source for portable electronic devices such as notebook computers (hereinafter, the battery used in the battery module is referred to as “unit cell”). Called).
- unit cell the battery used in the battery module
- Called the battery used in the battery module.
- a high-performance general-purpose battery can be used as a unit cell of the battery module, it is possible to easily improve the performance and cost of the battery module.
- a cylindrical lithium ion secondary battery as shown in FIG. 1 can be adopted as the unit cell 10 used in the battery module of the present invention.
- This lithium ion secondary battery has a normal configuration, and includes a safety mechanism that releases gas to the outside of the battery when the pressure in the battery increases due to an internal short circuit or the like.
- a specific configuration of the unit cell 10 will be described with reference to FIG.
- the opening of the battery case 7 is sealed with a sealing plate 8 through a gasket 9.
- an electrode group 4 configured by winding a positive electrode plate 1 and a negative electrode plate 2 with a separator 3 interposed therebetween is housed together with a non-aqueous electrolyte.
- the positive electrode plate 1 is connected to a sealing plate 8 that also serves as a positive electrode terminal via a positive electrode lead 5.
- the negative electrode plate 2 is connected via a negative electrode lead 6 to the bottom of a battery case 7 that also serves as a negative electrode terminal.
- the sealing plate 8 has an open portion 8a. When an abnormal gas is generated in the unit cell 10, the abnormal gas is discharged from the open portion 8a to the outside of the battery case 7.
- FIG. 2 is a diagram schematically showing the configuration of the battery module 100 constituting the battery pack according to the embodiment of the present invention, where (a) is a cross-sectional view and (b) is a perspective view.
- a plurality of unit cells 10 are arranged and accommodated in a case 30.
- Each unit cell 10 is accommodated in an accommodating portion formed in the holder 20.
- the holder 20 is made of a material having thermal conductivity, and the unit cell 10 is accommodated in the accommodating portion 21 with its outer peripheral surface abutting against the inner peripheral surface of the accommodating portion 21. preferable.
- produced in the unit cell 10 can be rapidly radiated
- a flat plate 31 is disposed on the positive electrode terminal 8 side of the plurality of unit cells 10, whereby an exhaust chamber 32 is defined between the case 30 and the flat plate 31.
- the flat plate 31 is provided with a through-hole 31a into which the positive electrode terminal 8 of each unit cell 10 is inserted, and abnormal gas discharged from the open portion 8a of the unit cell 10 is passed through the exhaust chamber 32 in FIG.
- the liquid is discharged out of the case 30 through a discharge port 33 provided on one side surface of the case 30.
- Such an exhaust mechanism is not limited to the structure shown in FIG. 2A, and may be a battery module without the exhaust chamber 32.
- FIG. 3A is a perspective view schematically showing a configuration of a battery pack 200 formed by stacking a plurality of battery modules 100
- FIG. 3B is an arrow A in FIG. It is sectional drawing to which the part shown was expanded.
- the battery pack 200 in the present embodiment is fixed to a frame 40 in which a hollow frame body is framed in a rectangular parallelepiped shape.
- the method for fixing the battery pack 200 is not particularly limited.
- a fixing tab may be provided on the case 30 of the battery module 100 and the tab may be fixed to a connecting portion provided on the frame 40 with a bolt or the like.
- the discharge port 33 of each battery module 100 is connected to an intake port provided in a part of the frame 40.
- the discharge port 33 of the lowermost battery module 100 is a portion of the frame 40 indicated by an arrow A in FIG. 3A, and an intake port 61 provided in the frame 40 as shown in FIG. It is connected to.
- the connection method between the discharge port 33 and the intake port 61 is not particularly limited.
- a gap formed between the case 30 of the battery module 100 and the frame 40 It is also possible to seal with an annular elastic member (for example, sponge or rubber), and connect the discharge port 33 and the intake port 61 via this sealed space.
- an annular elastic member for example, sponge or rubber
- an exhaust port 60 is provided in a part of the frame 40, so that the gas discharged from the discharge port 33 of the battery module 100 is hollow in the frame 40. The air is exhausted from the exhaust port 60 through the section.
- the exhaust path of the gas discharged from the discharge port 33 of the battery module 100 can also be used as the hollow frame 40 that fixes the battery pack 200, so that the exhaust path can be constructed with a simple configuration.
- the highly safe battery pack 200 suitable for the modularization technique can be realized.
- the arrangement positions of the intake port 61 and the exhaust port 60 of the frame 40 are not particularly limited.
- the intake port 61 and the exhaust port 60 are a rectangular parallelepiped frame. It is preferable to arrange them in the vicinity of the corners that are located diagonally to each other. Thereby, since the exhaust path of the gas from the intake port 61 to the exhaust port 60 can be lengthened, even if the gas discharged from the discharge port 33 of the battery module 100 is in a high temperature state, the gas comes into contact with oxygen. Thus, it is possible to discharge the gas whose temperature has decreased from the exhaust port 60 to the outside while preventing it from burning.
- the configuration of the frame 40 in the present invention is not particularly limited, but for example, the cross section is preferably rectangular. This facilitates the connection between the discharge port 33 of the battery module 100 and the intake port 61 of the frame 40.
- the material of the frame 40 is preferably a material having high thermal conductivity, particularly metal. Thereby, the heat of the gas flowing through the hollow portion of the frame 40 can be transmitted to the frame 40 and efficiently radiated to the outside.
- the cross-sectional area of the frame 40 is set to a size that does not cause a gas pressure loss.
- the cross-sectional area of the frame 40 is preferably 400 mm 2 or more from an exhaust test using a cylindrical exhaust duct.
- the cross-sectional area of the frame 30 is increased, when the gas flowing through the exhaust duct is a laminar flow, the ratio of the gas that contacts the wall surface of the exhaust duct is relatively reduced, so the efficiency of heat exchange in the frame 40 is reduced.
- the arrangement of the intake port 61 and the exhaust port 60 of the frame 40 is adjusted so that the flow of exhaust gas collides with the wall of the frame 40 to change the gas flow to turbulent flow, A decrease in heat exchange efficiency can be suppressed.
- FIG. 4 is a cross-sectional view schematically showing a configuration of a battery pack 210 according to another embodiment of the present invention.
- the frame 40 in the present embodiment includes an upper frame body 40a and a lower frame body 40b in the stacking direction of the battery modules 100, and a vertical frame body 40c that connects the upper frame body 40a and the lower frame body 40b. have.
- the battery pack 210 has the exhaust duct 70 which connected each discharge port 33 of the some battery module 100 to the lamination direction, respectively.
- the exhaust port 71 of the exhaust duct 70 is connected to an intake port 61 provided at the lower end of the vertical frame body 40 c of the frame 40.
- the gas discharged from the discharge port 33 of the battery module 100 passes through the exhaust duct 70 and the hollow portion of the vertical frame body 40c of the frame 40 and from the exhaust port 60 provided at the upper end of the vertical frame body 40c. It is discharged outside.
- the gas discharged from the discharge port 33 of the battery module 100 is led to the intake port 61 provided at the lower end portion of the vertical frame body 40c through the exhaust duct 70, and further from there to the vertical frame It can be made to exhaust from the exhaust port 60 provided in the upper end part of the vertical frame 40c through the hollow part of the body 40c.
- the exhaust path of the gas from the discharge port 33 of the battery module 100 to the exhaust port 60 can be lengthened, the gas is discharged even if the gas discharged from the discharge port 33 of the battery module 100 is in a high temperature state. While preventing contact with oxygen and burning, the gas whose temperature has decreased due to heat exchange with the frame 40 can be discharged from the exhaust port 60 to the outside.
- inlet 61 was provided in the lower end part of the vertical frame 40c of the flame
- exhaust port 60 is provided in the upper end part of the vertical frame 40c of the flame
- the configuration of the exhaust duct 70 is not particularly limited.
- the exhaust duct 70 has an opening (not shown) corresponding to each discharge port 33 of the battery module 100, and the discharge port 33 and the opening are connected by a connection method as shown in FIG. You may connect.
- the case side surfaces facing each other in the stacking direction of the battery modules 100 in FIG. 2A, the direction perpendicular to the paper surface).
- each battery module 100 is connected to the intake port of the battery module 100 located at the lower stage thereof, for example, a hollow connecting member
- the exhaust duct 70 can also be configured by connecting together.
- the discharge port 33 of the battery module 100 located at the lowermost stage is connected to the intake port 61 provided in the lower end portion (or the lower frame body 40b) of the vertical frame body 40c of the frame 40.
- the intake port of the battery module 100 located at the uppermost stage may be sealed with a sealing member or the like so that the exhaust gas does not escape from there.
- FIG. 5 is a perspective view schematically showing a configuration of a frame 40 for fixing a battery pack according to another embodiment of the present invention.
- the frame 40 in the present embodiment connects the upper frame body 40a and the lower frame body 40b and the upper frame body 40a and the lower frame body 40b in the stacking direction of the battery module 100 (not shown).
- the number of intermediate frames 40d 1 , 40d 2 , and 40d 3 corresponding to the number of stacked battery modules 100 (4 in FIG. 5) (3 in FIG. 5) is further included. ing.
- the discharge ports 33 (not shown) of the battery modules 100 are intake ports 61a, 61b, 61c, 61d provided in the intermediate frame bodies 40d 1 , 40d 2 , 40d 3 and the lower frame body 40b corresponding to the battery modules 100, respectively. Respectively. As a result, the gas discharged from the discharge port 33 of the battery module 100 passes through the hollow portions of the intermediate frame bodies 40d 1 , 40d 2 , 40d 3 and the vertical frame body 40c of the frame 40, and the upper frame body of the frame 40. It is discharged to the outside through an exhaust port 60 provided in 40a.
- the discharge port 33 of each battery module 100 can be connected to the intake ports 61a, 61b, and 61c provided in the intermediate frame bodies 40d 1 , 40d 2 , and 40d 3 corresponding to each battery module 100, respectively.
- the degree of freedom of arrangement of the discharge port 33 provided in the case 30 of the battery module 100 can be increased.
- a plurality of partitions 62 may be provided to block the flow.
- the partition 62 allows the gas discharged from the discharge port 33 of the battery module 100 to pass through the hollow portions of the intermediate frame bodies 40d 1 , 40d 2 , 40d 3 or the lower frame body 40b of the frame 40 positioned below in the stacking direction. Via, it arrange
- the gas discharged to the intake port 61a connected to the discharge port 33 of the uppermost battery module 100 is separated from the upper frame body 40a.
- the path flowing through the exhaust port 60 is blocked through the hollow portions of the frame bodies 40d 1 and 40d 2 . Therefore, gas discharge into the intake port 61a along the path indicated by the arrow in FIG. 5, by way of the intermediate frame 40d 3 located in the lower part, from an exhaust port 60 provided in the upper frame 40a It will be discharged to the outside.
- the gas discharged from the discharge port 33 of the battery module 100 is in a high temperature state.
- the gas having a lowered temperature can be discharged from the exhaust port 60 to the outside while preventing the gas from burning in contact with oxygen.
- the position at which the “partition” is provided is not particularly limited, and the gas discharged from the discharge port 33 of the battery module 100 is provided in a part of the frame 40 through the hollow portion of the frame body. Further, it can be determined as appropriate according to the configuration of the frame 40 at a position where the path discharged outside from the exhaust port 60 becomes long.
- FIG. 6 is a perspective view schematically showing a configuration of a battery pack 220 according to another embodiment of the present invention.
- the battery pack 220 is fixed to a casing 80 in which flat plates having a hollow structure are connected in a rectangular parallelepiped shape. It differs from the structure fixed to the frame 40 of the hollow structure.
- the housing 80 includes an upper flat plate 80a and a lower flat plate 80b in the stacking direction of the battery modules 100, and a vertical flat plate 80c that connects the upper flat plate 80a and the lower flat plate 80b.
- a plurality of battery modules 100A to 100D are stacked to form a battery pack 220.
- a discharge port 33 (not shown) of each of the battery modules 100A to 100D is formed in a part of the housing 80.
- the intake ports 61A to 61D provided are respectively connected. Then, the gas discharged from the discharge ports of the battery modules 100A to 100D passes through the hollow portion of the casing 80 and is discharged to the outside from the exhaust port 60 provided in a part of the casing 80.
- the exhaust path of the gas discharged from the discharge port 33 of each of the battery modules 100A to 100D is also used as the hollow structure casing 80 that fixes the battery pack 220, so that the exhaust path can be simplified.
- the exhaust path can be simplified.
- the discharge ports 33 of the battery modules 100A to 100D are connected to the intake ports 61A to 61D provided in a part of the housing 80, respectively.
- An exhaust duct in which the exhaust ports 33 of the modules 100A to 100D are connected in the stacking direction may be provided, and the exhaust port of the exhaust duct may be connected to an intake port 61D provided at the lower end portion of the vertical flat plate 80c.
- the gas discharged from the discharge ports 33 of the battery modules 100A to 100D is led to the intake port 61D provided at the lower end of the vertical plate 80c through the exhaust duct 70, and from there. Furthermore, it can discharge
- the gas exhaust path from the discharge port 33 of the battery modules 100A to 100D to the exhaust port 60 can be lengthened, so that the gas discharged from the discharge ports 33 of the battery modules 100A to 100D is in a high temperature state.
- the gas whose temperature has decreased can be discharged from the exhaust port 60 to the outside while preventing the gas from coming into contact with oxygen and burning.
- inlet 61D was provided in the lower end part of the vertical flat plate 80c of the housing
- exhaust port 60 is provided in the upper end part of the vertical flat plate 80c of the housing
- FIG. 7 is a longitudinal sectional view showing the structure of the flat plates 80a, 80b, 80c constituting the casing 80 for fixing the battery pack 220 in the present embodiment.
- the inside of the flat plates 80a, 80b, and 80c is partitioned into a shielding part 81 that regulates the flow of gas and a hollow part 82 that circulates the gas.
- the shielding part 81 partitions the hollow part 82 so that the gas flow in the hollow part 82 meanders.
- FIG. 8 is a cross-sectional view illustrating a method of connecting the discharge port 33 of the battery module 100 and the intake port 61 provided in the frame 40 according to another embodiment of the present invention.
- the discharge port 33 of the battery module 100 and the intake port 61 provided in the frame 40 are connected by a connecting member 90.
- the connecting member 90 is provided with an annular elastic member 91 in a flange portion formed in a hollow cylindrical portion, and the cylindrical portion of the connecting member 90 is connected to the discharge port 33 of the battery module 100 and the intake air of the frame 40.
- the discharge port 33 and the intake port 61 can be connected.
- the frame 40 and the casing 80 are rectangular parallelepipeds, but any form may be used as long as the battery pack is fixed.
- the intermediate frame bodies 40d 1 , 40d 2 , and 40d 3 are provided corresponding to the battery modules 100, the number of intermediate frame bodies is not particularly limited.
- the frame 40 may be configured by connecting a flat plate having a hollow structure to another frame body instead of at least one set of frame bodies framed in a planar shape.
- the unit cell 10 is a lithium ion secondary battery, other secondary batteries (for example, nickel metal hydride batteries) may be used.
- the present invention is useful for a driving power source such as an automobile, an electric motorcycle or an electric play equipment, or a power storage unit.
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- Chemical & Material Sciences (AREA)
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- Electrochemistry (AREA)
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Abstract
Description
電池パックは、中空構造の枠体が枠組みされたフレームに固定されており、電池モジュールの排出口は、フレームの一部に設けられた吸気口に連結されており、電池モジュールの排出口から排出されたガスは、フレームの中空部を通って、フレームの一部に設けられた排気口から外部に排出されることを特徴とする。
2 負極板
3 セパレータ
4 電極群
5 正極リード
6 負極リード
7 電池ケース
8 正極端子(封口板)
8a 開放部
9 ガスケット
10 素電池
20 ホルダ
21 収容部
30 ケース
31 平板
31a 貫通孔
32 排気室
33 排出口
40 フレーム
40a 上枠体
40b 下枠体
40c 縦枠体
40d 中間枠体
60 排気口
61 吸気口
70 排気ダクト
71 排出口
80 筐体
80a 上平板
80b 下平板
80c 縦平板
81 遮蔽部
82 中空部
100 電池モジュール
200、210、220 電池パック
Claims (11)
- 複数の電池モジュールが積層された電池パックであって、
前記電池モジュールは、
複数の素電池が収容されたケースと、
前記ケースの一側面に設けられ、前記素電池から排出されるガスを前記ケース外に排出する排出口と
を有し、
前記電池パックは、中空構造の枠体が枠組みされたフレームに固定されており、
前記電池モジュールの前記排出口は、前記フレームの一部に設けられた吸気口に連結されており、
前記電池モジュールの前記排出口から排出されたガスは、前記フレームの中空部を通って、該フレームの一部に設けられた排気口から外部に排出される、電池パック。 - 前記枠体の中空部の一部には、前記電池モジュールの前記排出口から排出されたガスの流れを遮断する仕切りが設けられており、
前記仕切りは、前記電池モジュールの前記排出口から排出されたガスが、前記枠体の中空部を経由して、前記フレームの一部に設けられた排気口から外部に排出される経路が長くなるような位置に配置されている、請求項1に記載の電池パック。 - 前記フレームは、前記電池モジュールの積層方向における上枠体と下枠体、及び該上枠体と下枠体とを連結する縦枠体を有し、
前記電池パックは、前記複数の電池モジュールの各排出口をそれぞれ積層方向に連結した排気ダクトをさらに有し、
前記排気ダクトの排出口は、前記フレームの下枠体または縦枠体の下端部に設けられた吸気口に連結されており、
前記電池モジュールの前記排出口から排出されたガスは、前記排気ダクト、前記フレームの下枠体または縦枠体の中空部を通って、前記フレームの上枠体または縦枠体の上端部に設けられた排気口から外部に排出される、請求項1に記載の電池パック。 - 前記フレームは、前記電池モジュールの積層方向における上枠体、下枠体、及び中間枠体、並びに前記上枠体、下枠体、及び中間枠体とを連結する縦枠体を有し、
前記電池モジュールの前記排出口は、各電池モジュールに対応した前記中間枠体に設けられた吸気口にそれぞれ連結されており、
前記電池モジュールの前記排出口から排出されたガスは、前記フレームの中間枠体及び縦枠体の中空部を通って、前記フレームの上枠体に設けられた排気口から外部に排出される、請求項1に記載の電池パック。 - 前記フレームの中間枠体及び縦枠体の中空部の一部には、前記電池モジュールの前記排出口から排出されたガスの流れを遮断する仕切りが設けられており、
前記仕切りは、前記電池モジュールの前記排出口から排出されたガスが、積層方向下方に位置する前記フレームの中間枠体または下枠体の中空部を経由して、前記フレームの上枠体に設けられた排気口から外部に排出されるように、配置されている、請求項4に記載の電池パック。 - 前記フレームの中空部の断面積は、500mm2以上である、請求項1に記載の電池パック。
- 前記フレームは、熱伝導性の高い材料で構成されている、請求項1に記載の電池パック。
- 前記フレームは、平面状に枠組みされた少なくとも一組の枠体に代えて、中空構造の平板が、他の枠体に連結されて構成されている。請求項1に記載の電池パック。
- 前記電池パックは、前記フレームに代えて、中空構造の平板が連結された筐体に固定されており、
前記電池モジュールの前記排出口は、前記筐体の一部に設けられた吸気口に連結されており、
前記電池モジュールの前記排出口から排出されたガスは、前記筐体の中空部を通って、該筐体の一部に設けられた排気口から外部に排出される、請求項1に記載の電池パック。 - 前記筐体は、前記電池モジュールの積層方向における上平板と下平板、及び該上平板と下平板とを連結する縦平板を有し、
前記電池パックは、前記複数の電池モジュールの各排出口をそれぞれ積層方向に連結した排気ダクトをさらに有し、
前記排気ダクトの排出口は、前記下平板または前記縦平板の下端部に設けられた吸気口に連結されており、
前記電池モジュールの前記排出口から排出されたガスは、前記排気ダクト、前記筐体の下平板及び縦平板の中空部を通って、前記上平板または前記縦平板の上端部に設けられた排気口から外部に排出される、請求項7に記載の電池パック。 - 前記電池モジュールは、前記複数の素電池を収容する電池室と区画された排気室をさらに備え、
前記素電池に形成されたガスの開放部は、前記排気室に連通するとともに、該排気室は、前記ケースの一側面に設けられた前記排出口に連通している、請求項1または7に記載の電池パック。
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CN201180004331.7A CN102656718B (zh) | 2010-12-13 | 2011-06-30 | 电池包 |
JP2012510055A JP5420064B2 (ja) | 2010-12-13 | 2011-06-30 | 電池パック |
US13/504,362 US20120288738A1 (en) | 2010-12-13 | 2011-06-30 | Battery pack |
EP11831783.3A EP2654100A4 (en) | 2010-12-13 | 2011-06-30 | BATTERY PACK |
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EP (1) | EP2654100A4 (ja) |
JP (1) | JP5420064B2 (ja) |
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US20120288738A1 (en) | 2012-11-15 |
CN102656718A (zh) | 2012-09-05 |
JP5420064B2 (ja) | 2014-02-19 |
CN102656718B (zh) | 2015-04-15 |
EP2654100A4 (en) | 2016-11-02 |
JPWO2012081137A1 (ja) | 2014-05-22 |
EP2654100A1 (en) | 2013-10-23 |
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