WO2012017586A1 - 電池モジュール - Google Patents
電池モジュール Download PDFInfo
- Publication number
- WO2012017586A1 WO2012017586A1 PCT/JP2011/003047 JP2011003047W WO2012017586A1 WO 2012017586 A1 WO2012017586 A1 WO 2012017586A1 JP 2011003047 W JP2011003047 W JP 2011003047W WO 2012017586 A1 WO2012017586 A1 WO 2012017586A1
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- WIPO (PCT)
- Prior art keywords
- battery
- flat plate
- path
- case
- battery module
- Prior art date
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Classifications
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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
- H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
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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
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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
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
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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 module in which a plurality of batteries are accommodated in a case.
- 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 has been adopted that can support a wide variety of applications by connecting general-purpose batteries in parallel or 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. There are various advantages, such as an improved degree of freedom when mounted in a designated space.
- Patent Document 1 discloses a case in which a plurality of batteries are housed, a battery chamber that houses the batteries, and a discharge chamber that exhausts high-temperature gas released from the batteries, by a partition wall. And a power supply device including an exhaust mechanism having a configuration in which an opening of a safety valve of a battery is communicated with an exhaust chamber.
- the exhaust mechanism By configuring the exhaust mechanism in this way, the high-temperature gas released from the safety valve of the battery can flow into the exhaust chamber without flowing into the battery chamber, and can be discharged out of the case from the discharge port of the case. Thereby, it can prevent that a surrounding battery is exposed to a high temperature state by filling a battery chamber with high temperature gas, and can reduce the influence which it has on a normal battery.
- Patent Document 1 can prevent the gas flowing into the discharge chamber from the opening of the battery from flowing into the battery chamber again by making the exhaust chamber a sealed structure. It is excellent in that chain degradation can be reduced.
- the present invention has been made in view of the above points, and the main object of the present invention is to provide a high-temperature gas released from the battery in the battery module having an exhaust path for exhausting the gas generated in the battery to the outside.
- An object of the present invention is to provide a highly safe battery module that prevents contact with surrounding batteries via an exhaust path.
- the battery module of the present invention is configured such that, for each battery, an open part that releases the gas generated in the battery is discharged from the open part of the battery through a sealed connection path.
- a configuration is adopted in which a one-way release valve that communicates with an exhaust path that exhausts to the outside and that is opened only in the direction of the exhaust path from the open part of the battery is disposed in or at one end of each connection path.
- the battery module according to the present invention is a battery module in which a plurality of batteries are housed in a case, and the battery has an open part that discharges gas generated in the battery to the outside of the battery. Is divided into an accommodating part for accommodating a plurality of batteries and an exhaust path for exhausting gas released from the open part of the battery to the outside of the case. The open part of the battery is exhausted by a sealed connection path. A one-way release valve that is communicated with the path and that is opened only in the direction of the exhaust path from the open part of the battery is disposed in the connection path or at one end thereof.
- the high-temperature gas that has flowed into the exhaust path can be discharged to the outside without contacting the peripheral battery.
- a highly functional battery module can be realized.
- FIG. 9 is a perspective view of the battery module after assembly in FIGS. 8 (a) to 8 (d).
- FIG. 11 is a perspective view of the battery module after assembly of FIGS. 10 (a) to 10 (e).
- FIG. 1 is a cross-sectional view schematically showing a configuration of a battery 100 used in the battery module according to the first embodiment of the present invention.
- a cylindrical lithium ion secondary battery as shown in FIG. 1 can be adopted.
- a lithium ion secondary battery is provided with 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 battery 100 will be described with reference to FIG.
- an electrode group 4 in which a positive electrode 1 and a negative electrode 2 are wound through a separator 3 is housed in a battery case 7 together with a non-aqueous electrolyte (not shown). Insulating plates 9, 10 are arranged above and below the electrode group 4, the positive electrode 1 is joined to the filter 12 via the positive electrode lead 5, and the negative electrode 2 is connected to the negative electrode terminal 6 via the negative electrode lead 6. Is joined to the bottom.
- the filter 12 is connected to an inner cap 13, and the protrusion of the inner cap 13 is joined to a metal exhaust valve 14. Further, the exhaust valve 14 is connected to a terminal plate 8 that also serves as a positive terminal. The terminal plate 8, the exhaust valve 14, the inner cap 13, and the filter 12 are integrated to seal the opening of the battery case 7 via the gasket 11.
- the safety mechanism for discharging the gas generated in the battery 100 to the outside is not limited to the structure shown in FIG.
- releases the gas generated in the battery 100 out of a battery is not limited to the position shown in FIG. 1, For example, you may be provided in the center of the protrusion part of the terminal board 8. FIG.
- FIG. 2A is a sectional view schematically showing the configuration of the battery module 200 in the present embodiment
- FIG. 2B is a partially enlarged view thereof.
- the battery module 200 has a configuration in which a plurality of batteries 100 are accommodated in a case 20. Each battery 100 is fixed at a restricted position by a rib 24 formed on the bottom 23 of the case 20. Further, as shown in FIG. 1, the battery 100 includes an open portion 8 a that discharges the gas generated in the battery 100 to the outside of the battery.
- the case 20 includes an accommodating portion 50 that accommodates the plurality of batteries 100 and an open portion 8a of the battery 100 by a flat plate 30 that is disposed on one end side (in the present embodiment, the positive electrode terminal 8 side) of the plurality of batteries 100.
- the exhaust gas is divided into an exhaust path 60 for exhausting the released gas to the outside of the case 20.
- the open part 8a of the battery 100 is connected to the exhaust path 60 by the sealed connection path 40.
- the battery 100 is disposed in contact with the battery case around the protrusion 8.
- the through hole of the flat plate 30 forms a connection path 40, and a one-way release valve 70 that is opened only in the direction of the exhaust path 60 from the opening 8 a of the battery 100 is disposed in the connection path 40. Yes.
- connection path 40 that communicates the open part 8a of the battery 100 and the exhaust path 60 is normally closed by a one-way open valve 70, and gas is released from the open part 8a of the battery 100 when an abnormality occurs.
- the direction release valve 70 is opened. Further, since the flat plate 30 is disposed in close contact with one end portion of the battery 100, the connection path 40 is sealed by the flat plate 30.
- the one-way release valve 70 when the one-way release valve 70 is opened by the high-temperature gas released from the open portion 8a of the battery 100, the high-temperature gas that has flowed into the exhaust path 60 via the connection path 40 is transferred to the other connection path 40 (one The direction opening valve 70 does not come into contact with the surrounding battery 100 via the closing) and is discharged out of the case 20 through the discharge port 22 provided in the case 20.
- the accommodating portion 50 is also sealed with the flat plate 30. Therefore, the high-temperature gas that has flowed into the exhaust path 60 from the open part 8a of the battery 100 via the connection path 40 does not flow into the housing part 50 again.
- connection path 40 that connects the open portion 8a of the battery 100 and the exhaust path 60 is closed by a one-way open valve 70.
- the one-way open valve 70 In the state where the one-way open valve 70 is closed, the battery 100 side and the exhaust path 60 side of the connection path 40 are blocked by the one-way open valve 70.
- connection path 40 is constituted by a through hole formed in the flat plate 30, and a part of the inner surface of the connection path 40 has a tapered portion formed in a conical shape toward the battery 100 side.
- the one-way release valve 70 is formed in a cone shape having a shape corresponding to the tapered portion of the connection path 40, and is disposed in contact with or pressed into the tapered portion of the connection path 40.
- the one-way release valve 70 has a structure that can be opened only to the exhaust path 60 side.
- the one-way open valve 70 is opened when gas is released from the open portion 8a of the battery 100 when an abnormality occurs and the pressure on the battery 100 side of the connection path 40 in the abnormal battery 100 is higher than that on the exhaust path 60 side. At this time, since the gas released from the abnormal battery 100 flows into the exhaust path 60 via the connection path 40, the pressure on the exhaust path 60 side of the connection path 40 in the peripheral battery 100 is higher than the pressure on the battery 100 side.
- the one-way release valve 70 remains closed without being opened.
- the one-way release valve 70 in the connection path 40 in the battery 100 that has released the gas is opened to the exhaust path 60 side.
- the gas released from the battery 100 flows into the exhaust path 60 via the connection path 40.
- the one-way release valve 70 in the connection path 40 in the peripheral battery 100 is kept closed, the gas flowing into the exhaust path 60 does not contact the peripheral battery 100 and is discharged from the discharge port 22 to the case. 20 is discharged outside. Thereby, the thermal influence which the high temperature gas discharge
- the “one-way open valve 70” in the present invention is the open portion 8a of the battery 100 due to the difference between the pressure on the battery 100 side and the pressure on the exhaust path 60 side in the connection path 40 where the one-way open valve 70 is arranged.
- the pressure on the battery 100 side and the pressure on the exhaust path 60 side in the connection path 40 are regulated by the pressure of the gas released from the open portion 8a of the battery 100 when there is an abnormality.
- the position at which the one-way release valve 70 is arranged in the connection path 40 is not particularly limited. For example, instead of being arranged in the connection path 40 as shown in FIG. (One end on the battery 100 side or the exhaust path 60 side) may be disposed.
- connection path 40 in the present invention is particularly configured as long as the open portion 8a of the battery 100 and the exhaust path 60 are independent for each battery 100 and communicated in a sealed state.
- connection path 40 may be formed integrally with the exhaust path 60, or may be formed integrally with the main body of the battery 100.
- the battery 100 is accommodated by the flat plate 30 disposed in contact with the battery case around the protruding portion (positive electrode terminal) 8 of the battery 100.
- the housing part 50 is sealed from the exhaust path 60, and The connection path 40 can be sealed.
- FIG. 3A is a cross-sectional view schematically showing the configuration of the battery module 210 in a modification of the first embodiment
- FIG. 3B is a partially enlarged view thereof.
- another form of the one-way release valve 70 shown in FIG. 2A is shown, and the other configuration of the battery module 200 is the same.
- the case 20 is discharged from the housing portion 50 that houses the battery 100 and the open portion 8 a of the battery 100 by the flat plate 30 disposed on one end side of the plurality of batteries 100. It is divided into an exhaust path 60 for exhausting gas.
- the protruding portion 8 of the battery 100 is placed in contact with the battery case around the protruding portion 8 of the battery 100 with the protruding portion 8 inserted into the through hole formed in the flat plate 30.
- the through hole of the flat plate 30 constitutes a connection path 40 that communicates the open portion 8 a of the battery 100 and the exhaust path 60.
- a plate-like member 70 is brought into contact with the surface of the flat plate 30 on the exhaust path 60 side in a state where the through-holes of the flat plate 30 are closed.
- a thin-walled portion 71 is formed at a portion in contact with 30. In the present modification, the thin portion 71 constitutes a one-way opening valve.
- the thin portion 71 formed on the plate-like member 70 is formed at a portion that is in contact with the flat plate 30 and is not broken even if a predetermined pressure is applied to the plate-like member 70. . Therefore, the thin portion 71 formed in this way can constitute a one-way release valve that is opened only in the direction of the exhaust path 60 from the opening portion 8a of the battery 100.
- the thin-walled portion 71 may be formed on both surfaces of the plate-like member 70 or only on one surface as long as it is a portion that is in contact with the flat plate 30.
- the shape for example, ring shape, linear shape, etc.
- the number, etc. of the thin part 71 to be formed are not particularly limited.
- FIG. 4A is a cross-sectional view schematically showing a configuration of a battery module 220 in another modification of the first embodiment
- FIG. 4B is a partially enlarged view thereof
- FIG. FIG. 5 is a cross-sectional view taken along line AA in FIG.
- this modification the other form of the one way open valve 70 shown to Fig.3 (a) is shown, and the other structure of the battery module 210 is the same.
- the one-way release valve in this modification has a configuration in which a hard-to-break part 72 is further provided in a part of the thin-walled part 71 shown in FIGS. 3 (a) and 3 (b).
- a hard-to-break part 72 is provided in a part of the thin part 71 formed in the plate-like member 70.
- the hard-to-break portion 72 has a ring-shaped thin portion 71 formed on the surface of the plate-like member 70 on the battery 100 side, and the plate-like member 70 side of the exhaust path 60 This surface can be formed by forming a semi-ring-shaped thin portion 71 with a part thereof being cut off.
- the one-way open valve When the one-way open valve is configured with the thin portion 71 having such a shape, when gas is released from the open portion 8a of the battery 100 at the time of abnormality, the thin portion 71 is broken, and the one-way open valve becomes the exhaust path 60 side.
- the one-way release valve is not completely separated from the plate member
- the open posture is inclined in a specific direction. Therefore, the battery is released by inclining this open posture in a direction to rectify the gas released from the open portion 8a of the battery 100 to the exhaust path 60 via the connection path 40 in the direction of the discharge port 22 of the exhaust path 60.
- the gas released from the open portion 8a of 100 can be quickly discharged out of the case 20. As a result, the thermal influence on the peripheral battery 100 can be further reduced.
- This open posture can be regulated by the shape, position, etc. of the thin-walled portion 71 and the hard-to-break portion 72.
- a member 70b (for example, parallel to the direction of the discharge port 22 of the exhaust path 60 is provided on the surface 70a on the battery 100 side of the plate-like member 70 serving as a one-way release valve. If the protrusion member) is provided, a rectifying action can be further added by the member 70b at the time of opening, so that the gas can be quickly discharged out of the case 20.
- FIG. 6 is a cross-sectional view schematically showing the configuration of the battery module 230 in another modification of the first embodiment.
- route 40 shown to Fig.3 (a) is shown, and the other structure of the battery module 210 is the same.
- a plurality of hollow members 30 a are formed on the flat plate 30, and the inner peripheral portion of the hollow member 30 a is fitted to the outer peripheral portion of the battery case of the battery 100.
- the hollow member 30 a constitutes the connection path 40.
- the hollow member 30a may be formed integrally with the flat plate 30 or may be formed by joining the hollow member 30a to the flat plate 30 having a through hole.
- FIG. 7 is a cross-sectional view schematically showing the configuration of the battery module 240 in another modification of the first embodiment.
- route 40 shown to Fig.3 (a) is shown, and the other structure of the battery module 210 is the same.
- the protruding portion 8 b of the battery 100 extends in a state where one end thereof is opened, and is fitted in the through hole of the flat plate 30.
- the protruding portion 8 b constitutes the connection path 40.
- the protruding portion 8b may also serve as a positive electrode terminal. In this case, since one end of the protruding portion 8b is open, it is not necessary to provide the open portion 8a as shown in FIG. .
- released from the open part 8a of the battery 100 are divided by the flat plate 30 distribute
- FIGS. 8A to 8D are exploded perspective views showing the configuration of the battery module when the flat plate 30 is formed of a wiring board
- FIG. 9 is a perspective view of the assembled battery module 300.
- a through hole 40 is formed in the wiring board 30, and a positive electrode connection body 31 and a negative electrode connection body 32 are formed on the surface of the wiring board 30. Further, an opening 40 a is formed in the positive electrode connection body 31 at the same position as the through hole 40.
- the protrusion of the positive electrode terminal 8 of the battery 100 is inserted into the through hole 40 of the wiring substrate 30 and connected to the positive electrode connection body 31 formed on the wiring substrate 30.
- the negative electrode terminal (bottom part of the battery case) of the battery 100 is connected in parallel by the negative electrode bus bar 33, and the negative electrode connection formed on the wiring substrate 30 through the conduction part 34 extending from a part of the negative electrode bus bar 33. It is connected to the body 32.
- the batteries 100 are connected in parallel by the positive electrode connection body 31 and the negative electrode connection body 32 formed on the wiring board 30.
- the end portion 31 a of the positive electrode connection body 31 and the end portion 32 a of the negative electrode connection body 32 are exposed to the outside of the case 20 from the discharge port 22 formed in the lid 21 of the case 20. It becomes an external terminal of the module 300.
- connection path 40 in this modification is comprised by the through-hole 40 of the wiring board 30, and the opening part 40a of the positive electrode connection body 31.
- FIGS. 10A to 10E are exploded perspective views showing other configurations of the battery module when the flat plate 30 is formed of a wiring board
- FIG. 11 is a perspective view of the assembled battery module 310.
- a plurality of assembled batteries 110 in which a plurality of batteries 100 are arranged as an example are arranged in parallel, and the connection structure of each battery 100 is as shown in FIG. ) And (c).
- adjacent battery packs 110 are connected in series by connecting the positive electrode connector 31 and the negative electrode connector 32 shown in FIG.
- the battery 100 constituting the battery module is a lithium ion secondary battery, but other secondary batteries (for example, nickel hydride batteries) may be used.
- the battery 100 is not limited to a cylindrical battery, but may be a square battery or a laminated battery.
- the one-way opening valve may be a reversible valve.
- an elastic body such as a resin, rubber, or metal coil may be used to restore the sealed state when the pressure acting on the open valve falls below a predetermined value, or a high-temperature gas passage using a shape memory alloy for the open valve It is good also as a structure which is cooled later and a predetermined shape is recovered.
- the battery module according to the present invention is suitably used as a power source for portable electronic devices such as personal computers and mobile phones, or as a power source for driving electric tools and electric vehicles.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
図1は、本発明の第1の実施形態における電池モジュールに使用する電池100の構成を模式的に示した断面図である。
図3(a)は、第1の実施形態の変形例における電池モジュール210の構成を模式的に示した断面図で、図3(b)は、その部分拡大図である。本変形例では、図2(a)に示した一方向開放弁70の他の形態を示し、電池モジュール200の他の構成は同じである。
2 負極
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 端子板(正極端子)
8a 開放部
8b 突出部
9、10 絶縁板
11 ガスケット
12 フィルタ
12a、13a 貫通孔
13 インナーキャップ
14 排気弁
20 ケース
21 蓋
22 排出口
23 底部
24 リブ
30 平板(配線基板)
30a 中空部材
31 正極接続体
31a 正極接続体の端部
32 負極接続体
32a 負極接続体の端部
33 負極バスバー
34 導通部
40 接続経路(貫通孔)
40a 開口部
50 収容部
60 排気経路
70 一方向開放弁(板状部材)
70b 部材
71 薄肉部
72 難破断部
100 電池
110 組電池
200、210、220、230、240 電池モジュール
300、310 電池モジュール
Claims (8)
- 複数の電池がケース内に収容された電池モジュールであって、
前記電池は、該電池内で発生したガスを電池外に放出する開放部を有しており、
前記ケースは、前記複数の電池を収容する収容部と、前記電池の開放部から放出されるガスを前記ケース外に排気する排気経路とに区画されており、
前記電池の開放部は、密閉された接続経路によって、前記排気経路に連通されており、
前記接続経路中またはその一端に、前記電池の開放部から前記排気経路の方向にのみ開放される一方向開放弁が配置されている、電池モジュール。 - 前記ケースは、該ケース内に配設された平板によって、前記収容部と前記排気経路とに区画されている、請求項1に記載の電池モジュール。
- 前記開放部は、前記電池の突出部に設けられており、
前記平板は、前記電池の突出部が、前記平板に形成された貫通孔に挿入された状態で、前記電池の突出部周囲の電池ケースに当接して配設されており、
前記貫通孔が、前記接続経路を構成している、請求項2に記載の電池モジュール。 - 前記平板には、複数の中空部材が形成されており、
前記中空部材の内周部は、前記電池の電池ケースの外周部に嵌合されており、前記中空部材が、前記接続経路を構成している、請求項2に記載の電池モジュール。 - 前記電池の突出部は、その一端が開放された状態で延伸して、前記平板の貫通孔内に嵌合されており、前記突出部が、前記接続経路を構成している、請求項2に記載の電池モジュール。
- 前記平板の前記排気経路側の面に、前記平板の貫通孔を塞いだ状態で、板状部材が当接されており、
前記板状部材には、前記貫通孔の周辺であって、前記平板に当接した部位に薄肉部が形成されており、該薄肉部が前記一方向開放弁を構成している、請求項2に記載の電池モジュール。 - 前記板状部材の前記平板に当接した部位には難破断部がさらに形成されており、
前記一方向開放弁は、開放されたときの姿勢が、前記電池の開放部から前記接続経路を介して前記排気経路に放出されるガスを、該排気経路の排出口の方向に整流する方向をなす、請求項6記載の電池モジュール。 - 前記平板は、前記複数の電池の電極を電気的に接続する接続体が形成された配線基板で構成されている、請求項2に記載の電池モジュール。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180038947.6A CN103081164B (zh) | 2010-08-06 | 2011-05-31 | 电池模块 |
US13/807,672 US9231237B2 (en) | 2010-08-06 | 2011-05-31 | Cell module |
JP2012527568A JP5589078B2 (ja) | 2010-08-06 | 2011-05-31 | 電池モジュール |
KR1020137000937A KR20130043154A (ko) | 2010-08-06 | 2011-05-31 | 전지 모듈 |
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Also Published As
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CN103081164B (zh) | 2015-11-25 |
KR20130043154A (ko) | 2013-04-29 |
CN103081164A (zh) | 2013-05-01 |
JPWO2012017586A1 (ja) | 2013-09-19 |
JP5589078B2 (ja) | 2014-09-10 |
US9231237B2 (en) | 2016-01-05 |
US20130095356A1 (en) | 2013-04-18 |
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