CN108736100A - Emergent spray cooling battery pack gasification control structure and its method - Google Patents
Emergent spray cooling battery pack gasification control structure and its method Download PDFInfo
- Publication number
- CN108736100A CN108736100A CN201810525112.7A CN201810525112A CN108736100A CN 108736100 A CN108736100 A CN 108736100A CN 201810525112 A CN201810525112 A CN 201810525112A CN 108736100 A CN108736100 A CN 108736100A
- Authority
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- China
- Prior art keywords
- battery pack
- battery
- gasification
- gas vent
- babinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002309 gasification Methods 0.000 title claims abstract description 35
- 239000007921 spray Substances 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 9
- 239000003507 refrigerant Substances 0.000 claims description 5
- 239000000178 monomer Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000000243 solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005619 thermoelectricity Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M10/625—Vehicles
-
- 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
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- 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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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
- H01M10/6567—Liquids
-
- 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
- H01M50/394—Gas-pervious parts or elements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention provides a kind of emergent spray cooling battery pack gasification control structure and its methods, are related to battery pack field of heat management.The structure includes battery pack babinet, battery cell, controllable check gas vent, the direct-cooled jet port in battery pack position, it is continuously sprayed in conjunction with battery pack multiple spot position, the injection controls such as interrupted injection, the controllable check gas vent of multiple space air current compositions is set, it controls the controllable check gas vent of space multidigit and becomes aperture sequence unlatching, realize battery pack in gasification stream tissue it is controllable, it is super it is cold cross thermal cell and thin oxygen heat combustion block, effectively inhibit battery that thermal runaway occurs, extends electric vehicle occupant's escape time.
Description
Technical field
The present invention is in relation to a kind of battery pack heat management system and thermally safe application technology.
Background technology
With global energy, environmental problem getting worse, counte-rplan are all actively being sought in countries in the world, electric vehicle because
It had both met the megatrend of energy-saving and emission-reduction, also complied with the idea of development of environmental protection, had become countries in the world automobile
The emphasis of industry development, battery are widely used in new due to its high-energy density, simple system and environmental-friendly feature
Energy automobile.Temperature is an important factor for influencing battery performance, it is therefore desirable to the temperature of strict control battery.Too low temperature meeting
So that the internal resistance of battery is increased, can charge/discharge capacity reduce, reduce battery service life；Excessively high temperature can then make in battery pack
Side reaction increase, SEI films decompose, reduce battery cycle life, reduce battery safety, or even cause battery burning and
Explosion, serious security risk is brought to occupant.
When electric vehicle is in use, the superheat region of battery will produce a large amount of heat, once a large amount of heat generated does not have
Have and shed in time, the battery of surrounding will be spread to, cause the chain reaction of battery undesirable heat accident, and then can bring more serious
Safety accident.
Invention content
The present invention provides a kind of emergent spray cooling battery pack gasification control structure and its methods, in conjunction with battery pack multiple spot
The injection controls such as position continuously sprays, interrupted injection, are arranged the controllable check gas vent of multiple space air current compositions, and control space is more
The controllable check gas vent in position becomes aperture sequence and opens, and realizes in battery pack that gasification stream tissue is controllable, super cold cross thermal cell and dredges
The combustion of oxygen heat blocks, and effectively inhibits battery that thermal runaway occurs, and extends electric vehicle occupant's escape time.
To achieve the above object, the present invention provides the following technical solutions：
A kind of emergent spray cooling battery pack gasification control structure, sprays, structure has more in conjunction with battery pack multiple spot position
Controllable check gas vent air current composition exhaust system,
Including battery pack babinet (1), multiple controllable check gas vents (2), the direct-cooled jet port in battery pack position (3) and more
A battery cell (4), the multiple battery cell (4) are laid in the battery pack babinet (1), the battery pack babinet (1)
It is laid with the direct-cooled jet port in battery pack position (3), the battery pack babinet between the multiple battery cell (4)
(1) multiple controllable check gas vents (2) are distributed on, the direct-cooled jet port in battery pack position (3) is used in the multiple electricity
Pond monomer (4) occurs to spray low temperature gasification refrigerant when thermal runaway, and the controllable check gas vent (2) is for spraying low temperature gasification
The oxygen in the battery pack babinet (1) is discharged in refrigerant initial stage, and is oriented in the middle and later periods and the gas group after gasification is discharged
It knits.
In preferred embodiments of the present invention, emergent spray cooling battery pack gasification control structure is the multiple
Controllable check gas vent (2) is laid in top surface, side and the bottom surface of the battery pack babinet (1), to coordinate the battery pack
The direct-cooled jet port in position (3) assists gasification stream tissue, super cold thermal cell excessively and the combustion of thin oxygen heat to block.
In preferred embodiments of the present invention, application spray cooling battery pack gasification control structure is described controllable
Check gas vent (2) opening sequence is adjustable, aperture is adjustable.
In preferred embodiments of the present invention, application spray cooling battery pack gasification control structure, the battery
The ejection medium for wrapping the direct-cooled jet port in position (3) can not burning liquid including at least low temperature gasification.
In preferred embodiments of the present invention, a kind of application spray cooling battery pack gasification control method includes：
When the battery cell overheat in the battery pack babinet, the direct-cooled jet port in battery pack position is by low temperature gasification
Can not burning liquid mainly spray to the superheat region of the battery cell, secondary injection low temperature gasification can not burning liquid to the electricity
The superheat region peripheral region of pond monomer；
The multiple controllable check gas vent positioned at the battery cell distal end is opened at injection initial stage with big aperture, is made
Oxygen in battery pack is ejected the battery pack babinet by gasification stream tissue；And
After battery cell distal end, the relatively the multiple controllable check gas vent of distal end and proximal end are in injection
Phase is successively adjusted with becoming aperture, is oriented to, is allowed to and each battery list in battery pack to the gasification stream tissue in battery pack
Body fully exchange heat, the heat in battery pack is blocked to fire sprawling.
In preferred embodiments of the present invention, the injection includes at least the continuous injection of collaboration and interrupted injection, and uses
Multidigit controllable check gas vent in space becomes aperture sequence and opens, to strengthen cooling and heat combustion blocking effect.
In preferred embodiments of the present invention, the method, the initial stage is that the direct-cooled jet port of the battery pack (3) is opened
Within threshold time after opening, the middle and later periods is after the direct-cooled jet port of the battery pack (3) is opened by initial stage threshold time
The time range for all refrigerant gas discharge battery pack babinet being injected into battery pack babinet is arrived later.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is battery pack structure figure of the present invention；
Fig. 2 is one embodiment of the invention structure chart；
Label declaration in attached drawing：
1- battery pack babinets
The controllable check gas vents of 2-
The direct-cooled jet port in 3- battery packs position
4- battery cells
Specific implementation mode
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is right below
The detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit the range of claimed invention, but
It is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not making creativeness
The every other embodiment obtained under the premise of labour, shall fall within the protection scope of the present invention.
As shown in attached drawing 1., battery pack structure of the present invention is by battery pack babinet (1), controllable check gas vent (2), battery pack
The direct-cooled jet port in position (3), battery cell (4) composition, battery cell (4) are distributed in battery pack babinet (1), controllable check row
Stomata (2) is arranged in the top surface, side, bottom surface of battery pack babinet (1), and the aperture of controllable check gas vent (2) is adjustable, battery
The packet direct-cooled jet port in position (3) is distributed in the different zones in battery pack, low when battery cell (4) overheat in battery pack
Wetization can not burning liquid from the direct-cooled jet port in battery pack position (3) mainly injection to the overheat cell area, low temperature gasification is not
Region around flammable liquid secondary injection to the superheat region is vented at injection initial stage with the controllable check of big aperture open distal end
Hole (2) makes gasification stream tissue eject the oxygen in battery pack, and the injection middle and later periods is successively adjusted distally, farther out with becoming aperture
End, the controllable check gas vent (2) in proximal end, the gasification stream tissue in battery pack is oriented to, be allowed to it is each in battery pack
Battery cell (4) fully exchange heat, the heat in battery pack is blocked to fire sprawling.
It is one embodiment of the invention structure chart as shown in attached drawing 2., in embodiment, center battery to the left in battery pack
Monomer (4) overheats, and the direct-cooled jet port in battery pack position (3) can not burning liquid battery shown in figure (2) by low temperature gasification
Center sprays in packet, and when spraying unlatching, the controllable check gas vent (2) of battery pack babinet (1) bottom surface is with maximum opening
It opens, after (0) (2) seconds, closes the controllable check gas vent (2) of battery pack babinet (1) bottom surface, while with (1) per second/(10)
The speed of maximum opening opened gradually among battery pack babinet (1) left side, the controllable check gas vent (2) of lower section, when this two
When a controllable check gas vent (2) is opened into (1)/(4) maximum opening, controllable check exhaust on the left of battery pack babinet (1) is closed
Hole (2), at this time with the speed of (1) per second/(10) maximum opening open battery pack babinet (1) right side among, lower section it is controllable
Check gas vent (2) closes battery pack babinet when the two controllable check gas vents (2) are opened into (1)/(4) maximum opening
(1) the controllable check gas vent (2) in right side, then opens battery pack babinet (1) top surface with the speed of (1) per second/(5) maximum opening
The controllable check gas vent (2) in left side is until fully opening, and controllable check gas vent (2) exists on the left of battery pack babinet (1) top surface
Start open after (2) second, with the speed of (1) per second/(10) maximum opening open gradually on the right side of battery pack babinet (1) top surface can
Check gas vent (2) is controlled until fully opening.In the present embodiment, the present invention is taken full advantage of, thermoelectricity is crossed in battery pack
Pond is oriented to the gasification tissue in battery pack, effectively reduced the temperature of single cell of thermo (4), while giving thermoelectricity
The battery of pond adjacent side is cooled down, it is suppressed that crosses the heat combustion sprawling of thermal cell.
Claims (7)
- The control structure 1. a kind of emergent spray cooling battery pack gasifies, which is characterized in that sprayed in conjunction with battery pack multiple spot position, structure It builds with more controllable check gas vent air current composition exhaust systems,Including battery pack babinet (1), multiple controllable check gas vents (2), the direct-cooled jet port in battery pack position (3) and multiple electricity Pond monomer (4), the multiple battery cell (4) are laid in the battery pack babinet (1), the battery pack babinet (1) and institute It states and is laid with the direct-cooled jet port in battery pack position (3), the battery pack babinet (1) between the multiple battery cell (4) On be distributed with multiple controllable check gas vents (2), the direct-cooled jet port in battery pack position (3) is used in the multiple battery list Body (4) occurs to spray low temperature gasification refrigerant when thermal runaway, and the controllable check gas vent (2) is for spraying low temperature gasification refrigeration The oxygen in the battery pack babinet (1) is discharged in agent initial stage, and is oriented in the middle and later periods and the gas tissue after gasification is discharged.
- The control structure 2. emergent spray cooling battery pack according to claim 1 gasifies, which is characterized in that it is the multiple can Control check gas vent (2) is laid in top surface, side and the bottom surface of the battery pack babinet (1), to coordinate the battery pack area The direct-cooled jet port (3) in position, assists gasification stream tissue, super cold to cross thermal cell and the combustion of thin oxygen heat blocks.
- The control structure 3. application spray cooling battery pack according to claim 2 gasifies, which is characterized in that described controllable inverse Only gas vent (2) opening sequence is adjustable, aperture is adjustable.
- 4. according to claim 1-3 any one of them application spray cooling battery packs gasification control structure, which is characterized in that institute The ejection medium for stating the direct-cooled jet port in battery pack position (3) can not burning liquid including at least low temperature gasification.
- The control method 5. a kind of application spray cooling battery pack gasifies, which is characterized in that be applied to any one of claim 1-4 institutes The application spray cooling battery pack gasification control structure stated, the method includes：When the battery cell overheat in the battery pack babinet, the direct-cooled jet port in battery pack position can not by low temperature gasification Burning liquid is mainly sprayed to the superheat region of the battery cell, secondary injection low temperature gasification can not burning liquid to the battery list The superheat region peripheral region of body；The multiple controllable check gas vent positioned at the battery cell distal end is opened at injection initial stage with big aperture, and gasification is made Oxygen in battery pack is ejected the battery pack babinet by air current composition；AndPositioned at the battery cell distal end, relatively distal end and proximal end the multiple controllable check gas vent injection the middle and later periods with Become aperture successively adjust, the gasification stream tissue in battery pack is oriented to, be allowed to each battery cell in battery pack into The abundant heat exchange of row blocks the heat combustion in battery pack to spread.
- 6. according to the method described in claim 5, it is characterized in that, the injection includes at least the continuous injection of collaboration and interval is sprayed It penetrates, and aperture sequence unlatching is become using the controllable check gas vent of space multidigit, fire blocking effect with heat so that reinforcing is cooling.
- 7. according to the method described in claim 5, it is characterized in that, the initial stage be the direct-cooled jet port of the battery pack (3) open Within threshold time after opening, the middle and later periods is after the direct-cooled jet port of the battery pack (3) is opened by initial stage threshold time The time range for all refrigerant gas discharge battery pack babinet being injected into battery pack babinet is arrived later.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810525112.7A CN108736100B (en) | 2018-05-28 | 2018-05-28 | Emergency jet cooling battery pack gasification control structure and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810525112.7A CN108736100B (en) | 2018-05-28 | 2018-05-28 | Emergency jet cooling battery pack gasification control structure and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108736100A true CN108736100A (en) | 2018-11-02 |
| CN108736100B CN108736100B (en) | 2020-10-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810525112.7A Expired - Fee Related CN108736100B (en) | 2018-05-28 | 2018-05-28 | Emergency jet cooling battery pack gasification control structure and method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108736100B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335973A (en) * | 2019-06-07 | 2019-10-15 | 扬顶（天津）科技有限公司 | A kind of firebreak device of solid state battery |
| CN110556606A (en) * | 2019-09-05 | 2019-12-10 | 吉林大学 | Battery pack internal injection emergency cooling control structure and method |
| CN112151710A (en) * | 2019-06-28 | 2020-12-29 | 比亚迪股份有限公司 | Battery package thermal safety structure, battery package thermal management system and vehicle |
| US11177516B2 (en) | 2020-01-10 | 2021-11-16 | Ford Global Technologies, Llc | Thermal event mitigation for battery packs |
| US11239506B2 (en) | 2020-01-10 | 2022-02-01 | Ford Global Technologies, Llc | Thermal event detection for battery packs |
| CN114937776A (en) * | 2022-05-30 | 2022-08-23 | 九环储能科技有限公司 | Safety barrier blasting method for thermal runaway of immersed chemical energy storage device |
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| JPH11329515A (en) * | 1998-05-07 | 1999-11-30 | Nissan Motor Co Ltd | Battery module for electric vehicle and battery structure using battery module in rows |
| CN104716396A (en) * | 2013-12-11 | 2015-06-17 | 观致汽车有限公司 | Cooling system of power battery pack for vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335973A (en) * | 2019-06-07 | 2019-10-15 | 扬顶（天津）科技有限公司 | A kind of firebreak device of solid state battery |
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| CN112151710A (en) * | 2019-06-28 | 2020-12-29 | 比亚迪股份有限公司 | Battery package thermal safety structure, battery package thermal management system and vehicle |
| CN110556606A (en) * | 2019-09-05 | 2019-12-10 | 吉林大学 | Battery pack internal injection emergency cooling control structure and method |
| CN110556606B (en) * | 2019-09-05 | 2023-09-19 | 吉林大学 | Battery pack internal injection emergency cooling control structure and method |
| US11177516B2 (en) | 2020-01-10 | 2021-11-16 | Ford Global Technologies, Llc | Thermal event mitigation for battery packs |
| US11239506B2 (en) | 2020-01-10 | 2022-02-01 | Ford Global Technologies, Llc | Thermal event detection for battery packs |
| CN114937776A (en) * | 2022-05-30 | 2022-08-23 | 九环储能科技有限公司 | Safety barrier blasting method for thermal runaway of immersed chemical energy storage device |
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| Publication number | Publication date |
|---|---|
| CN108736100B (en) | 2020-10-30 |
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