CN113725541A - Battery jar for large energy storage system - Google Patents
Battery jar for large energy storage system Download PDFInfo
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- CN113725541A CN113725541A CN202111062424.7A CN202111062424A CN113725541A CN 113725541 A CN113725541 A CN 113725541A CN 202111062424 A CN202111062424 A CN 202111062424A CN 113725541 A CN113725541 A CN 113725541A
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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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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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
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
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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
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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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application relates to a battery jar for large-scale energy storage system, including casing, lithium cell module, locating plate, backup pad, high-order liquid case, divide into electric chamber, cooling chamber and fire control chamber, fire control chamber and high-order liquid case intercommunication with the battery jar through locating plate, backup pad. The lithium battery module comprises a shell, an upper cover, a lower cover and an electric core, wherein an explosion venting component is arranged at the center of the lower cover of the lithium battery module, an explosion venting channel is arranged between the support plate and the explosion venting component, and the cross sectional area of the lower cover of the lithium battery module is larger than that of the explosion venting channel, so that the lithium battery module is sealed on the support plate under the action of self gravity. Fire control chamber and high-order liquid incasement have fire control liquid, when taking place the thermal runaway, let out and explode the part and can take place to break, make fire control liquid be in through letting out and explode the passageway and get into under the effect of high-order liquid case liquid level difference in the lithium cell module, utilize passive means to reach the effect of cooling, pressure release and termination thermal runaway and thermal runaway to stretch.
Description
Technical Field
The present application relates to the field of batteries, and more particularly, to a battery can for a large energy storage system.
Background
In recent years, lithium battery technology has been rapidly developed and has been used in more and more fields. However, due to the principle and structural characteristics of the lithium battery, the heat generated by internal resistance is often increased during repeated use. When the temperature is further raised, the electrolyte and the solvent inside can be decomposed, combusted and exploded.
The traditional heat dissipation system mainly adopts three types of forced ventilation, water cooling and natural convection heat dissipation, and has certain application defects: forced ventilation and water cooling are bulky and complex due to the need for fans, pumps, pipelines and other accessories, and in addition, air cooling affects the sealing performance of the lithium battery module package, water cooling is too costly and requires corresponding insulation treatment, which also consumes battery energy and reduces the actual power density and energy density of the battery. The natural convection heat dissipation is the air cooling with maximum efficiency by optimizing the structure of the battery pack, and the heat dissipation effect is very limited under the condition of poor air convection condition.
CN112421159A discloses a high energy lithium cell and including large-scale energy storage system of this lithium cell, and the lithium cell soaks in heat-conducting liquid, and the part that explodes is let out to the explosion when taking place thermal runaway, makes the interior combustible substance of battery rapidly be guided to the fire control intracavity. An explosion venting channel is arranged between a battery tank supporting plate and an explosion venting component, after the explosion venting component is broken, fire-fighting liquid enters the lithium battery module through the explosion venting channel under the action of a high-level liquid tank liquid level difference, and thermal runaway spread are stopped in a passive mode; in addition, this application divide into electric chamber, cooling chamber and the three cavity in fire control chamber with the battery jar through locating plate, backup pad, and the positive negative pole of lithium cell module is equipped with the control unit by the electric chamber of connecting into by the wire in the electric chamber, the casing top be provided with air cooling device, with electric chamber with cooling chamber intercommunication, air cooling device carry out the air cooling heat dissipation for electric chamber and lithium cell module simultaneously, and heat radiation structure is different with the mode, and the radiating effect is better.
CN110911779A, CN108198982A all utilize the air cooling principle to dispel the heat, nevertheless do not set up and let out and explode device and let out and explode the passageway, can't in time prevent and control when battery thermal runaway, do not also separate the cavity of different functions. The technical means of this application all has great difference with above-mentioned patent document, and the heat dissipation that reaches is better with the fire control effect.
Disclosure of Invention
An object of the present application is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
The application provides a battery jar for large-scale energy storage system, including casing, lithium cell module, locating plate, backup pad and high-order liquid case, its characterized in that, through locating plate and backup pad divide into electric chamber, cooling chamber and fire control chamber with the battery jar, the locating plate top is electric chamber, the locating plate with be cooling chamber between the backup pad, the backup pad below is the fire control chamber, the fire control chamber with high-order liquid case intercommunication.
Optionally, the lithium battery module comprises a shell, an upper cover, a lower cover and a battery cell; the center of the lower cover of the lithium battery module is provided with an explosion venting component, an explosion venting channel is arranged between the explosion venting component and the support plate, and the cross section area of the lower cover of the lithium battery module is larger than that of the explosion venting channel, so that the lithium battery module is sealed on the support plate under the action of self gravity.
Optionally, the fire-fighting cavity and the high-level liquid tank are filled with fire-fighting liquid, and when thermal runaway occurs, the explosion venting component is broken, so that the fire-fighting liquid enters the lithium battery module through the explosion venting channel under the action of the liquid level difference of the high-level liquid tank.
Optionally, the positioning plate is arranged on the upper portion of the battery jar, a plurality of mounting holes corresponding to the positions of the lithium battery modules are formed in the positioning plate, and positioning assemblies are arranged at the mounting holes.
Further optionally, an end face sealing element is arranged at the joint of the lithium battery module and the explosion venting channel in the horizontal direction.
Further optionally, the lithium battery module with let out the vertical direction of exploding the passageway junction and be equipped with radial seal circle.
Optionally, when thermal runaway occurs, after the explosion venting component is broken, the fire-fighting liquid can absorb heat and can also react with the electrolyte to stop the thermal runaway.
Optionally, a cooling device is arranged at the top of the battery can, and the cooling device is communicated with the electrical cavity and the cooling cavity through a vent hole arranged on the positioning plate.
Further optionally, the air cooling device is an industrial air conditioner.
Optionally, the lithium battery module is a cylindrical battery module or a square battery module.
Optionally, the positive electrode and the negative electrode of the lithium battery module are connected to the electrical cavity above the positioning plate through leads; the electric intracavity is equipped with the control unit, the control unit is: the system comprises one or more of a battery management system, a bus bar and an energy storage converter.
Optionally, the shell of the lithium battery module is made of aluminum alloy, or a metal material or a non-metal material with strength equivalent to that of the aluminum alloy.
Optionally, a pressure relief valve is arranged at the bottom of the fire fighting cavity and/or the top of the high-level water tank.
Optionally, the fire fighting cavity is communicated with the high-level liquid tank through a liquid inlet pipe, and the liquid inlet pipe is provided with a maintenance valve.
Further optionally, each battery cell in the lithium battery module is also provided with a first explosion venting unit; when the battery core is out of control thermally, the first explosion venting unit on the battery core is started, the material generated by the out of control thermally is sprayed out of the battery core, the lithium battery module is internally buffered, when the pressure in the lithium battery module reaches a threshold value, the explosion venting component at the center of the lower cover of the lithium battery module is started, the explosion venting channel is opened, and the fire-fighting liquid enters the lithium battery module through the explosion venting channel under the action of the liquid level difference of the high-level liquid tank.
Compared with the prior art, the method has the following beneficial effects:
1. according to the battery jar for the large-scale energy storage system, the lithium battery module is sealed under the action of self gravity; the lithium battery module with let out the horizontal direction of exploding the passageway junction and be equipped with end face seal spare and radial seal circle, strengthen sealed effect.
2. The application provides a battery jar for large-scale energy storage system utilizes the ventilation hole on air cooling device and the locating plate, carries out the air cooling heat dissipation to lithium battery module, in time looses the heat that lithium battery module produced.
3. The application provides a battery jar for large-scale energy storage system, the backup pad with let out to explode to have between the part and let out and explode the passageway, should let out to explode the cross-sectional area of passageway great, when taking place the thermal runaway, can make to let out to explode gaseous smooth and easy exhaust in, fire control liquid also can pour into in the lithium cell module.
4. According to the battery jar for the large-scale energy storage system, each battery cell in the lithium battery module is further provided with a first explosion venting unit; when the battery core is out of control thermally, the first explosion venting unit on the battery core is started, the material generated by the out of control thermally is sprayed out of the battery core, the lithium battery module is internally buffered, when the pressure in the lithium battery module reaches a threshold value, the explosion venting component at the center of the lower cover of the lithium battery module is started, the explosion venting channel is opened, and the fire-fighting liquid enters the lithium battery module through the explosion venting channel under the action of the liquid level difference of the high-level liquid tank.
5. The application provides a battery jar for large-scale energy storage system, the fire control chamber with high-order liquid incasement has the fire control liquid that disappears, when taking place the thermal runaway, it can take place to break to let out the part of exploding, makes the fire control liquid be in under the effect of high-order liquid case liquid level difference let into through letting out the passageway of exploding in the lithium battery module, reach cooling, pressure release and termination thermal runaway and the effect that the thermal runaway stretchs through passive means, stopped the thermal runaway risk of lithium battery module.
Additional advantages, objects, and features of the application will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of the present application.
Fig. 2 is a top view of a battery can of the present application.
Fig. 3 is a top cross-sectional view of a battery can of the present application.
Fig. 4 is a partially enlarged view of the explosion venting portion and the sealing portion.
Fig. 5 is a top cross-sectional view of a single lithium battery module of the present application.
Description of reference numerals:
1-shell, 2-pressure release valve, 3-positioning plate, 4-supporting plate, 5-radial sealing ring, 6-end face sealing element, 7-explosion release component, 8-lithium battery module, 9-electric cavity, 10-cooling cavity, 11-fire-fighting cavity, 12-explosion release channel, 13-high level liquid tank, 14-liquid inlet pipe, 15-maintenance valve, 16-vent hole and 17-air cooling device.
Detailed Description
The present application will now be described in further detail with reference to the accompanying drawings, whereby one skilled in the art can, with reference to the description, make an implementation.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The technical solution of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments.
The battery jar for large-scale energy storage system that this application embodiment provided, as shown in fig. 1, including casing, lithium cell module, locating plate, backup pad and high-order liquid case, divide into electric chamber, cooling chamber and fire control chamber with the battery jar through locating plate, backup pad, the fire control chamber with high-order liquid case intercommunication, the locating plate top is electric chamber, the locating plate with be the cooling chamber between the backup pad, the backup pad below is the fire control chamber.
Optionally, in this embodiment of the application, the lithium battery module includes a housing, an upper cover, a lower cover, and a battery cell; an explosion venting component is arranged at the center of the lower cover of the lithium battery module, and an explosion venting channel is arranged between the explosion venting component and the supporting plate; the cross sectional area of the lower cover of the lithium battery module is larger than that of the explosion venting channel, so that the lithium battery module is sealed on the supporting plate under the action of self gravity.
Optionally, in this application embodiment, the fire control chamber with there is fire prevention liquid in the high-order liquid case, when taking place the thermal runaway, it can break to let out explode the part, makes fire prevention liquid be in under the effect of high-order liquid case liquid level difference through let out explode the passageway and get into in the lithium cell module.
Optionally, in this application embodiment, the locating plate sets up the upper portion of battery jar, be equipped with a plurality of on the locating plate with the mounting hole that lithium cell module position corresponds, mounting hole department is equipped with locating component.
Optionally, in this application embodiment, the lithium battery module with let out the horizontal direction of exploding the passageway junction and be equipped with end face seal.
Optionally, in this application embodiment, the lithium battery module with let out the vertical direction of exploding the passageway junction and be equipped with radial seal circle.
Optionally, in this embodiment of the application, when thermal runaway occurs, after the explosion venting component is broken, the fire extinguishing liquid may absorb heat, and may also react with an electrolyte to terminate the thermal runaway.
Optionally, in this embodiment of the present application, the air cooling device is an industrial air conditioner.
Optionally, in this embodiment of the application, the positive electrode and the negative electrode of the lithium battery module are connected to the electrical cavity above the positioning plate by a lead; the electric intracavity is equipped with the control unit, the control unit is: the system comprises a battery management system, a bus bar and an energy storage converter.
Optionally, in this embodiment, there are pressure relief valves at the bottom of the fire fighting cavity and the top of the high-level water tank.
Optionally, in this embodiment of the application, each battery cell in the lithium battery module is further provided with a first explosion venting unit; when the battery core is out of control thermally, the first explosion venting unit on the battery core is started, the material generated by the out of control thermally is sprayed out of the battery core, the lithium battery module is internally buffered, when the pressure in the lithium battery module reaches a threshold value, the explosion venting component at the center of the lower cover of the lithium battery module is started, the explosion venting channel is opened, and the fire-fighting liquid enters the lithium battery module through the explosion venting channel under the action of the liquid level difference of the high-level liquid tank.
It can be understood that in the embodiment of the application, the battery can is divided into an electric cavity, a cooling cavity and a fire-fighting cavity by the positioning plate and the supporting plate; the air cooling device is arranged, so that heat generated by the lithium battery module can be dissipated in time; the lithium battery module is sealed on the supporting plate under the action of self gravity, and an end face sealing element and a radial sealing ring are arranged at the joint of the supporting plate and the explosion venting channel, so that the sealing effect is enhanced; through set up and let out and explode the part lithium battery module bottom, at the backup pad with let out and explode the passageway with set up between the part, let out when out of control of heat and explode the part and break, fire control liquid is in get into under the effect of high-order liquid tank liquid level difference in the lithium battery module, utilize passive means to reach the effect of cooling, pressure release and termination thermal runaway and thermal runaway to stretch.
The battery jar for large-scale energy storage system that this application embodiment provided, as shown in fig. 1, including casing 1, relief valve 2, locating plate 3, backup pad 4, radial seal 5, end face seal 6, let out explodes part 7, lithium cell module 8, electric chamber 9, cooling chamber 10, fire control chamber 11 let out explode passageway 12, high-order liquid case 13, feed liquor pipe 14, service valve 15, ventilation hole 16, industrial air conditioner 17. This application embodiment divide into electric chamber 9, cooling chamber 10 and fire control chamber 11 with the battery jar through locating plate 3, backup pad 4, fire control chamber 11 with there is water in the high-order liquid case 13, through feed liquor pipe 14 intercommunication, there is service valve 15 on the feed liquor pipe, there is relief valve 16 fire control chamber 11 bottom and high-order liquid case 13 top. Lithium battery module 8 is cylinder battery module, including shell, upper cover, lower cover and electric core, lithium battery module 8 lower cover center is provided with lets out and explodes part 7, backup pad 4 with let out to explode and be equipped with between the part 7 and let out and explode passageway 12, the cross sectional area of lithium battery module lower cover is greater than let out and explode the cross sectional area of passageway 12, make lithium battery module 8 seal under self action of gravity in on backup pad 4, lithium battery module 8 with let out and explode the passageway 12 junction and have end face seal 6 in the horizontal direction, have radial seal 5 in vertical direction, strengthen sealed effect. The positioning plate 3 is arranged above the battery jar, and a positioning device is arranged at a position corresponding to the lithium battery module 8. The positive negative pole of lithium battery module 8 is connected into the electric chamber 9 of locating plate 3 top by the wire, be equipped with the control unit in the electric chamber 9, the control unit is: the system comprises a battery management system, a bus bar and an energy storage converter.
Each battery cell in the lithium battery module is also provided with a first explosion venting unit; when the battery core is out of control thermally, the first explosion venting unit on the battery core is started, and substances generated by the out of control thermally gush out from an explosion venting port of the battery core and are buffered in the lithium battery module; when the pressure in the lithium battery module reaches a threshold value, the explosion venting component 7 at the center of the lower cover of the lithium battery module 8 is started, the explosion venting channel 12 is opened, water flows backwards into the lithium battery module 8 through the explosion venting channel 12 under the action of the liquid level difference of the high-level liquid tank 13, and the effects of cooling, pressure relief, termination of thermal runaway and thermal runaway propagation are achieved by using a passive means.
The battery jar for large-scale energy storage system that this application embodiment provided, the casing top still is provided with industrial air conditioner 17, with electric chamber 9 with cooling chamber 10 intercommunication carries out the forced air cooling heat dissipation for normal operating condition's lithium battery module 8.
Although the embodiments of the present application have been disclosed above, they are not limited to the applications listed in the description and the embodiments. It can be applied in all kinds of fields suitable for the present application. Additional modifications will readily occur to those skilled in the art. Therefore, the application is not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (15)
1. The utility model provides a battery jar for large-scale energy storage system, includes casing, lithium cell module, locating plate, backup pad and high-order liquid case, its characterized in that, through locating plate and backup pad divide into electric chamber, cooling chamber and fire control chamber with the battery jar, the locating plate top is electric chamber, the locating plate with be cooling chamber between the backup pad, the backup pad below is the fire control chamber, the fire control chamber with high-order liquid case intercommunication.
2. The battery can for a large energy storage system according to claim 1, wherein the lithium battery module comprises a housing, an upper cover, a lower cover and a battery cell; an explosion venting component is arranged at the center of the lower cover of the lithium battery module, and an explosion venting channel is arranged between the explosion venting component and the supporting plate; the cross sectional area of the lower cover of the lithium battery module is larger than that of the explosion venting channel, so that the lithium battery module is sealed on the supporting plate under the action of self gravity.
3. The battery jar for the large-scale energy storage system according to claim 2, wherein the fire-fighting cavity and the high-level liquid tank are filled with a fire-fighting liquid, and when thermal runaway occurs, the explosion venting component is broken, so that the fire-fighting liquid enters the lithium battery module through the explosion venting channel under the action of the liquid level difference of the high-level liquid tank.
4. The battery jar for the large energy storage system according to claim 1, wherein the positioning plate is disposed on an upper portion of the battery jar, the positioning plate is provided with a plurality of mounting holes corresponding to the positions of the lithium battery modules, and a positioning assembly is disposed at the mounting holes.
5. The battery can for the large-scale energy storage system according to claim 2, wherein an end face sealing member is arranged at the joint of the lithium battery module and the explosion venting channel in the horizontal direction.
6. The battery jar for the large energy storage system according to claim 5, wherein a radial sealing ring is arranged in a vertical direction at a joint of the lithium battery module and the explosion venting channel.
7. The battery can for a large-scale energy storage system according to claim 2, wherein the fire-fighting liquid can absorb heat and react with an electrolyte to terminate thermal runaway after the explosion venting member is ruptured when the thermal runaway occurs.
8. The battery jar for large energy storage system according to claim 1, wherein an air cooling device is disposed on the top of the battery jar, and the air cooling device is communicated with the electrical cavity and the cooling cavity through a vent hole disposed on the positioning plate.
9. The battery can for a large energy storage system according to claim 8, wherein the air cooling device is an industrial air conditioner.
10. The battery can for large scale energy storage system according to claim 1, wherein the lithium battery module is a cylindrical battery module or a prismatic battery module.
11. The battery jar for large energy storage system according to claim 1, wherein the positive and negative electrodes of the lithium battery module are connected to the electrical cavity above the positioning plate by wires; the electric intracavity is equipped with the control unit, the control unit is: the system comprises one or more of a battery management system, a bus bar and an energy storage converter.
12. The battery can for the large-scale energy storage system according to claim 1, wherein the case of the lithium battery module is made of aluminum alloy, or a metal material or a non-metal material with strength equivalent to that of the aluminum alloy.
13. The battery jar for large energy storage system according to claim 1, wherein the fire fighting cavity bottom and/or the head tank top has a pressure relief valve.
14. The battery jar for the large-scale energy storage system according to claim 1, wherein the fire-fighting cavity is communicated with the high-level liquid tank through a liquid inlet pipe, and the liquid inlet pipe is provided with a service valve.
15. The battery jar for the large energy storage system according to claim 2, wherein each battery cell in the lithium battery module is further provided with a first explosion venting unit; when the battery core is out of control thermally, the first explosion venting unit on the battery core is started, the material generated by the out of control thermally is sprayed out of the battery core, the lithium battery module is internally buffered, when the pressure in the lithium battery module reaches a threshold value, the explosion venting component at the center of the lower cover of the lithium battery module is started, the explosion venting channel is opened, and the fire-fighting liquid enters the lithium battery module through the explosion venting channel under the action of the liquid level difference of the high-level liquid tank.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111062424.7A CN113725541A (en) | 2021-09-10 | 2021-09-10 | Battery jar for large energy storage system |
| PCT/CN2022/117837 WO2023036248A1 (en) | 2021-09-10 | 2022-09-08 | Battery tank for large-scale energy storage system, and explosion venting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111062424.7A CN113725541A (en) | 2021-09-10 | 2021-09-10 | Battery jar for large energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113725541A true CN113725541A (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111062424.7A Pending CN113725541A (en) | 2021-09-10 | 2021-09-10 | Battery jar for large energy storage system |
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| CN (1) | CN113725541A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023036248A1 (en) * | 2021-09-10 | 2023-03-16 | 陕西奥林波斯电力能源有限责任公司 | Battery tank for large-scale energy storage system, and explosion venting method |
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| WO2023036248A1 (en) * | 2021-09-10 | 2023-03-16 | 陕西奥林波斯电力能源有限责任公司 | Battery tank for large-scale energy storage system, and explosion venting method |
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