CN112701393B - Battery module and vehicle with same - Google Patents
Battery module and vehicle with same Download PDFInfo
- Publication number
- CN112701393B CN112701393B CN202011592730.7A CN202011592730A CN112701393B CN 112701393 B CN112701393 B CN 112701393B CN 202011592730 A CN202011592730 A CN 202011592730A CN 112701393 B CN112701393 B CN 112701393B
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- Prior art keywords
- battery
- battery module
- explosion
- proof valve
- battery cell
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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
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
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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
- H01M50/333—Spring-loaded vent valves
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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
Abstract
The application discloses battery module and have its vehicle, battery module includes: a housing; the multiple electric cores are arranged in the shell, and an explosion-proof valve is arranged on the upper surface of each electric core; the isolating plate is arranged above the shell, and the area, opposite to the explosion-proof valve, of the isolating plate is formed into a weakening area which is suitable for being flushed by gas and fire flow sprayed out through the explosion-proof valve so as to discharge the gas and fire flow out of the battery cell; and a shield provided on the housing and spaced apart from the partition plate in an up-down direction to define a discharge passage adapted to discharge a flow of fire. Therefore, the thermal runaway spreading speed between the battery modules can be prolonged, the separation time of passengers and the rescue time of rescue workers can be prolonged, rapid boosting (namely, timely discharging of air current) in the battery modules can be avoided, the damage degree of the battery modules is reduced, the ignition or explosion of the battery modules is avoided, and the use safety of the battery modules is improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a battery module and a vehicle with the battery module.
Background
In the related art, fire protection devices such as a mica plate are additionally arranged between a battery module and a battery pack box (an upper cover), the periphery of the battery module is not particularly protected, once thermal runaway occurs to the module, sprayed flame can enter the adjacent battery modules from the top adjacent to the battery module and one side of the battery module, which is provided with an end plate, so that a plurality of battery modules can perform thermal runaway chain reactions, the speed of the flame bursting the battery pack box to diffuse outwards can only be delayed by singly using the mica plate, but the thermal runaway can not be prevented from spreading among the battery modules.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a battery module that can isolate and protect the battery module, lengthen the thermal runaway propagation speed between the plurality of battery modules, and prevent the battery module from firing or exploding.
The application further provides a vehicle adopting the battery module.
According to an embodiment of the first aspect of the present application, a battery module for a vehicle includes: a housing; the battery cores are arranged in the shell, and an explosion-proof valve is arranged on the upper surface of each battery core; the isolating plate is arranged above the shell, and the area, opposite to the explosion-proof valve, of the isolating plate is formed into a weakening area, and the weakening area is suitable for being flushed by gas and fire flows sprayed out through the explosion-proof valve so as to discharge the gas and fire flows out of the battery cell; and a screen provided on the housing and spaced apart from the screen in an up-down direction to define a discharge passage adapted to discharge the flow of air and fire.
According to the battery module provided by the embodiment of the application, through setting up division board and cage, make electric core exhaust gas flow can be kept apart through the division board to avoid or reduce the influence of gas flow to battery module not taking place thermal runaway's electric core, can be spaced apart battery module and battery module around through the cage, avoid or reduce the influence of gas flow to battery module around, not only can prolong thermal runaway's spreading rate between the battery module, the time of separating of extension passenger and rescue personnel's rescue time, can avoid in the battery module to step up promptly (promptly in time discharging gas flow), reduce battery module's damage degree, avoid battery module to take place fire or explode, in order to improve battery module's safety in utilization.
According to some embodiments of the application, the cage has a discharge port in communication with the discharge channel, the discharge port being formed on a side of the cage opposite the end plate of the housing.
In some embodiments, mounting holes for securing with the end plate are provided on the side of the cage opposite the end plate.
Further, the exhaust port is provided on one side surface of the separator opposite to the end plate, and an electrical plug port is provided on the other side surface.
Further, a discharge outlet protective curtain is arranged on the discharge outlet, and an electric protective curtain is arranged on the electric plug-in connector.
In some embodiments, the battery module further comprises: and the cushion block is positioned at one end of the isolation plate away from the discharge port and is used for spacing the electric plug-in port from the discharge channel.
Further, the contour shape of the weakened area is consistent with the contour shape of the explosion-proof valve.
In some embodiments, further comprising: the explosion-proof valve is arranged above the battery cell body; the yunnan electric core includes: the battery cell comprises a battery cell body and a battery cell shell, wherein an opening is formed in the bottom of the battery cell shell and is sleeved on the battery cell body, and a detonation discharging hole for installing the detonation-proof valve is formed in the top of the battery cell shell.
Further, the pressure threshold is 1Mpa-1.2Mpa.
According to an embodiment of the second aspect of the present application, a vehicle includes: the battery module described in the above embodiment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of a battery module (a separator is not shown) according to an embodiment of the present application;
fig. 2 is another schematic view of a battery module according to an embodiment of the present application;
fig. 3 is a schematic view of a separator of a battery module according to an embodiment of the present application.
Reference numerals:
the battery module 100 is provided with a battery module,
a housing 10, side plates 11, end plates 12, upper plates 13,
a battery cell 20, a battery cell body 21, a battery cell casing 22,
the thickness of the spacer 30, the weakened area 31,
the wiring board 40 is provided with a plurality of wiring boards,
a shield 50, a discharge port 51, a mounting hole 52, an electrical interface 53,
a spacer 60, a vent shield 70, and an explosion valve 80.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
A battery module 100 and a vehicle according to an embodiment of the present invention are described below with reference to fig. 1 to 3.
As shown in fig. 1 and 2, a battery module 100 for a vehicle according to an embodiment of a first aspect of the present application includes: the battery pack comprises a housing 10, a battery cell 20, a separation plate 30 and a separation cover 50.
Wherein, the battery cells 20 are a plurality of and all arranged in the shell 10, and the upper surface of each battery cell 20 is provided with an explosion-proof valve 80; the partition plate 30 is disposed above the case 10, and a region of the partition plate 30 facing the explosion-proof valve 80 is formed as a weakened region 31, the weakened region 31 being adapted to be flushed by the gas flame sprayed through the explosion-proof valve 80 to discharge the gas flame out of the battery cell 20; the screen 50 is covered on the housing 10, and the screen 50 is spaced apart from the screen 30 in the up-down direction to define a discharge passage adapted to discharge a flow of fire.
Specifically, the housing 10 defines an accommodating space, the plurality of electric cores 20 are arranged in an array in sequence and are arranged in the housing 10, adjacent electric cores 20 are electrically connected through the wiring board 40, the isolation board 30 is arranged above the housing 10, the area where the isolation board 30 is opposite to the explosion-proof valve 80 is formed into the weakening area 31, when thermal runaway occurs in one or more electric cores 20 in the battery module 100, the explosion-proof valve 80 on the electric core 20 is opened, and air and fire generated in the electric core 20 are sprayed out to blow out the housing 10, then act on the weakening area 31, and blow out the weakening area 31 to discharge the battery module 100.
It is understood that the weakening zone 31 is not a through hole, and can separate the cells 20 that are not thermally out of control from the ejected gas and fire flow, prolong the propagation speed of the thermal out of control between the plurality of cells 20 in the battery module 100, avoid or reduce the influence of other cells 20 around the cells 20 that are thermally out of control, and realize separate isolation protection for each cell 20.
Further, the outside of the case 10 is covered with the shielding case 50, and a discharge passage is defined between the shielding case 50 and the shielding plate 30 to discharge the flow guide of the gas-fire discharged through the weakened area 31 through the discharge passage, thereby realizing the directional discharge of the gas-fire generated by the thermal runaway cell 20.
It should be noted that, the isolation cover 50 is covered on the circumference of the housing, so that the exhaust gas and fire flow can be prevented from burning the adjacent battery modules 100 in the lateral direction or the end of the adjacent battery module 100, so as to prolong the spreading speed of the thermal runaway among the plurality of battery modules 100, prevent the battery modules 100 from being rapidly boosted in the battery modules 100, prevent the battery modules 100 from igniting or exploding, and improve the safety of the battery modules 100.
According to the battery module 100 of the embodiment of the application, through setting up division board 30 and cage 50, make electric core 20 exhaust's gas fire flow can be kept apart through division board 30 to avoid or reduce the influence of gas fire flow to battery module 100 the electric core 20 that does not take place thermal runaway, can be spaced apart battery module 100 and the battery module 100 around through the cage 50, avoid or reduce the influence of gas fire flow to battery module 100 around, not only can prolong the thermal runaway's spread rate between the battery module 100, prolong the time of escape of passenger and rescue personnel's rescue time, can avoid in the battery module 100 to step up promptly (i.e. in time discharge gas fire flow), reduce battery module 100's damage degree, avoid battery module 100 to fire or explode, in order to improve battery module 100's safety in utilization.
It should be noted that the gas flame is a mixture of high-temperature and high-pressure gas and liquid ejected after thermal runaway of the battery cell 20.
As shown in fig. 3, according to some embodiments of the present application, the cage 50 is constructed as an integral piece, and the cage 50 has a discharge port 51 communicating with the discharge passage, the discharge port 51 being formed on a side of the cage 50 opposite the end plate 12.
That is, the air-fire flow guided through the exhaust passage may be exhausted through the exhaust port 51 located on the opposite side of the separator 50 from the end plate 12, and the end plates 12 of the same side of the plurality of battery modules 100 are spaced apart in the length direction or the width direction of the battery pack, so that the probability that the air-fire flow exhausted through the exhaust port 51 causes the other battery modules 100 to be ignited is lower, and the separation protection effect of the separator 50 may be further improved, to effectively improve the use safety of the battery modules 100.
It should be noted that, the exhaust port 51 in the embodiment of the present application may be formed on two opposite sides of the isolation cover 50 opposite to the end plate 12, or may be disposed on only one of the two sides, and those skilled in the art may flexibly set the exhaust port according to the actual situation, but all fall under the technical solutions claimed in the present application.
As shown in fig. 3, in some embodiments, the cage 50 is provided with a vent 51 on one side opposite the end plate 12 and an electrical interface 52 on the other side. That is, in one embodiment of the present application, the exhaust port 51 is formed on one side surface, the electrical interface 53 is provided on the other side surface, and the electrical interface 53 is used for being electrically connected with the surrounding battery module 100 and other electrical components, so that not only is the electrical connection between the battery module 100 and the surrounding electrical components and between the battery module 100 simpler and more convenient, but also the exhaust port 51 and the electrical interface 53 are positioned on both side surfaces of the shielding can 50, so that the air and fire flow can be prevented from being exhausted through the electrical interface 53, the surrounding electrical components can be prevented from being burnt, and the use safety of the battery module 100 can be further improved.
It will be appreciated that in some embodiments, the exhaust port 51 is provided with an exhaust port protection curtain 70, and the housing 10 in the isolation cover 50 may be separated from the outside by the exhaust port protection curtain 70, and the electrical plug 53 is provided with an electrical protection curtain (not shown in the drawings) to reduce the fire receiving area of the housing 10 inside the battery module 100 by the exhaust port protection curtain 70 and the electrical protection curtain, thereby further improving the isolation protection effect.
As shown in fig. 2 and 3, mounting holes 52 for fixing with the end plate 12 are provided on the opposite side of the cage 50 from the end plate 12.
Wherein, the casing 10 of the battery module 100 has two end plates 12, the two opposite sides of the isolation cover 50 and the two end plates 12 are respectively provided with mounting holes 52, the number of the corresponding mounting holes 52 on each side is at least two, the isolation cover 50 is fixed on the end plates 12 by the fasteners penetrating through the mounting holes 52, the isolation cover 50 can be prevented from moving relative to the casing 10, so that the discharge channel is kept stable, and the air and fire flow can be discharged through the discharge outlet 51, so as to improve the protection effect.
In the specific embodiment shown in fig. 2, in some embodiments, the battery module 100 further includes: a spacer 60, the spacer 60 being located at an end of the partition plate 30 remote from the discharge port 51 and serving to space the electrical interface 53 from the discharge passage.
Specifically, the length of the isolation board 30 is consistent with the length of the isolation cover 50, and then a cushion block 60 is arranged at one end of the isolation cover 50, which is provided with a battery plug-in port, the cushion block 60 is in a strip-shaped structure, the upper side surface of the cushion block 60 is attached to the isolation cover 50, the lower side surface of the cushion block 60 is attached to the upper surface of the isolation board 30, so that the electric plug-in port 53 is spaced from a discharge channel, the isolation effect is further improved, and the fact that gas flame does not act on the electric plug-in port 53 is ensured, so that the use safety of the battery module 100 is effectively improved.
As shown in fig. 1, according to some embodiments of the present application, a housing 10 includes: the side plate 11, the end plate 12 and the upper plate 13, the upper plate 13 is located between the isolation plate 30 and the battery cell 20, and the isolation plate 30 is attached to the upper plate 13.
Specifically, the accommodating space is defined by the side plate 11, the end plate 12 and the upper plate 13, the battery cell 20 is arranged in the accommodating space, the upper plate 13 is attached to the isolation plate 30, so that the gas fire flow generated by the battery cell 20 can be directly used in the weakening area 31 after the shell 10 is opened, gaps between the isolation plate 30 and the shell 10 are avoided, the gas fire flow is prevented from acting on other battery cells 20 through the gaps in the discharging process, the structural rationality of the battery module 100 is improved, the spreading speed of the thermal runaway gold of the battery cell 20 is effectively prolonged, and the use safety of the battery module 100 is improved.
It will be appreciated that the slower the propagation speed, the more sufficient the escape time for the occupant and the rescue time for the rescuer will be after thermal runaway of the cell 20.
Preferably, the contour shape of the weakened area 31 corresponds to the contour shape of the explosion proof valve 80. In this way, in the process of discharging the air and fire, the area of the opening formed after the weakening zone 31 is flushed is ensured to be consistent with the cross-sectional area of the explosion-proof valve 80, so that the efficiency of discharging the air and fire is improved, and meanwhile, a gap between the weakening zone 31 and the upper plate 13 of the shell 10 after the weakening zone 31 is flushed is avoided, so that the limited isolation protection effect of the isolation plate 30 is further improved.
In the specific embodiment shown in fig. 1, according to some embodiments of the present application, further comprising: the explosion-proof valve 80, the explosion-proof valve 80 is set up above electric core 20; the battery cell 20 comprises a battery cell body 21 and a battery cell shell 22, wherein the bottom of the battery cell shell 22 is provided with an opening and is sleeved on the battery cell body 21, and the top of the battery cell shell 22 is provided with a explosion-proof hole for installing the explosion-proof valve 80.
Wherein, the explosion-proof valve 80 is located above the battery core body 21, the bottom of the battery core shell 22 is provided with an opening and is sleeved on the battery core body 21, and the top of the battery core shell 22 is provided with a explosion-proof hole avoiding the explosion-proof valve 80.
Specifically, the battery core body 21 includes a plurality of battery cells or is constructed as a roll core structure, the explosion-proof valve 80 is disposed above the battery core body 21, and the explosion-proof valve 80 and the battery core body 21 are all extended into the integrated battery core shell 22 with the open bottom, and the explosion-discharging hole on the top surface of the battery core shell 22 is used for avoiding the explosion-proof valve 80, so that after the explosion-proof valve 80 is opened, the space defined by the battery core shell 22 and used for placing the battery core body 21 is communicated with the outside, and when the battery core body 21 generates thermal runaway, the gas flame generated by the battery core body 21 can be ensured to be discharged out of the battery core shell 22 through the opened explosion-proof valve 80, and the thermal runaway directional explosion-discharging of the battery core 20 is realized.
It should be noted that, the battery cell case 22 is configured as an integrally formed piece, and only the bottom is open, so that the battery cell case has a good insulation effect, and the insulation effect between the plurality of battery cells 20 in the battery module 100 can be improved, so as to further reduce the influence of thermal runaway on the surrounding battery cells 20.
Wherein the profile of the detonation aperture is greater than the profile of the explosion valve 80. In this way, the assembly among the battery cell body 21, the battery cell shell 22 and the explosion-proof valve 80 is simpler and more convenient.
It will be appreciated that according to some embodiments of the present application, a plurality of grooves are provided on the separator 30, each groove being formed as one weakened area 31, and that the separator 30 and the cage 50 are each constructed as a flame retardant composite.
Thus, on one hand, the isolation plate 30 is constructed as a flame-retardant composite member, and has a stable flame-retardant effect, so that the isolation protection of the isolation plate 30 on the battery cell 20 is more stable and reliable; on the other hand, the weakening area 31 is formed as a groove, so that the structure of the separator 30 is simpler on the premise that the processing of the separator 30 is simpler and more convenient.
When the pressure of the gas-fire flow emitted from the explosion-proof valve 80 exceeds the pressure threshold, the weakened area 31 is flushed by the gas-fire flow. For example, in some embodiments, the pressure threshold is 1Mpa-1.2Mpa. In this way, the pressure born by the weakening area 31 can be ensured to reach the pressure threshold value and then be flushed away, so that the pressure threshold value is more reasonable, the explosion-venting response speed of the battery module 100 is higher on the premise of improving the isolation effect of the isolation plate 30, the weakening area 31 can be opened in time to rapidly discharge high-pressure air and fire, and the battery module 100 is prevented from being damaged to a greater extent.
According to an embodiment of the second aspect of the present application, a vehicle includes: the battery module 100 in the above embodiment.
According to the vehicle of the embodiment of the application, the battery modules 100 in the embodiment are adopted, so that the spreading speed of the thermal runaway between the battery modules 100 and between the battery cells 20 is prolonged, and the situation that the pressure cannot be discharged in time when the battery modules 100 are in thermal runaway is avoided, so that the safety of the vehicle is improved.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the invention, a "first feature" or "second feature" may include one or more of such features.
In the description of the present invention, "plurality" means two or more.
In the description of the invention, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the invention, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A battery module (100) for a vehicle, characterized by comprising:
a housing (10);
the battery cells (20) are arranged in the shell (10), and an explosion-proof valve (80) is arranged on the upper surface of each battery cell (20);
a separator (30), the separator (30) being disposed above the housing (10), and a region of the separator (30) facing the explosion-proof valve (80) being formed as a weakened region (31), the weakened region (31) being adapted to be flushed away by a flow of gas and fire ejected via the explosion-proof valve (80) to expel the flow of gas and fire out of the cell (20);
a shield (50), the shield (50) being provided over the housing (10), the shield (50) being provided over a circumference of the housing (10), and the shield (50) being spaced apart from the partition plate (30) in an up-down direction to define a discharge passage adapted to discharge the air-fire flow;
the housing (10) comprises: the battery pack comprises side plates (11), end plates (12) and an upper plate (13), wherein the upper plate (13) is positioned between the isolation plate (30) and the battery cell (20), and the isolation plate (30) is attached to the upper plate (13);
the separator (50) has a discharge port (51) communicating with the discharge passage, the discharge port (51) being formed on a side of the separator (50) opposite to an end plate (12) of the housing (10).
2. The battery module (100) for a vehicle according to claim 1, wherein a mounting hole (52) for fixing with the end plate (12) is provided on a side of the separator (50) opposite to the end plate (12).
3. The battery module (100) for a vehicle according to claim 1, wherein the separator (50) is provided with the discharge port (51) on one side surface opposite to the end plate (12) and an electrical plug-in port (53) on the other side surface.
4. A battery module (100) for a vehicle according to claim 3, wherein the outlet (51) is provided with an outlet protection curtain (70), and the electrical outlet (53) is provided with an electrical protection curtain.
5. The battery module (100) for a vehicle according to claim 4, further comprising: a spacer (60), said spacer (60) being located at an end of said separator plate (30) remote from said discharge opening (51) and being adapted to space said electrical interface (53) from said discharge channel.
6. The battery module (100) for a vehicle according to claim 1, wherein the contour shape of the weakened area (31) coincides with the contour shape of the explosion-proof valve (80).
7. The battery module (100) for a vehicle according to claim 1, further comprising an explosion-proof valve (80), the explosion-proof valve (80) being disposed above the battery cell (20); the battery cell (20) comprises a battery cell body (21) and a battery cell shell (22), wherein an opening is formed in the bottom of the battery cell shell (22) and is sleeved on the battery cell body (21), and a detonation discharging hole for installing the detonation preventing valve (80) is formed in the top of the battery cell shell (22).
8. The battery module (100) for a vehicle according to claim 7, wherein the weakened area (31) is flushed when the pressure of the air-fire flow emitted by the explosion-proof valve (80) exceeds a pressure threshold value, the pressure threshold value being 1Mpa-1.2Mpa.
9. A vehicle, characterized by comprising: the battery module (100) of any one of claims 1-8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011592730.7A CN112701393B (en) | 2020-12-29 | 2020-12-29 | Battery module and vehicle with same |
| PCT/CN2021/137545 WO2022143131A1 (en) | 2020-12-29 | 2021-12-13 | Battery module and vehicle provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011592730.7A CN112701393B (en) | 2020-12-29 | 2020-12-29 | Battery module and vehicle with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112701393A CN112701393A (en) | 2021-04-23 |
| CN112701393B true CN112701393B (en) | 2023-06-09 |
Family
ID=75511700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011592730.7A Active CN112701393B (en) | 2020-12-29 | 2020-12-29 | Battery module and vehicle with same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112701393B (en) |
| WO (1) | WO2022143131A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701393B (en) * | 2020-12-29 | 2023-06-09 | 长城汽车股份有限公司 | Battery module and vehicle with same |
| JP2023549919A (en) * | 2021-05-31 | 2023-11-29 | 寧徳時代新能源科技股▲分▼有限公司 | Batteries and their manufacturing methods, manufacturing equipment and power consumption devices |
| CN113619248A (en) * | 2021-07-04 | 2021-11-09 | 湖北平安电工科技股份公司 | Manufacturing method of mica plate with blind holes |
| CN113601935A (en) * | 2021-07-04 | 2021-11-05 | 湖北平安电工科技股份公司 | Manufacturing method of mica plate with blind holes |
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| WO2022143131A1 (en) | 2022-07-07 |
| CN112701393A (en) | 2021-04-23 |
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