CN109786867A - Lithium ion battery packet protection of liquid nitrogen technology - Google Patents
Lithium ion battery packet protection of liquid nitrogen technology Download PDFInfo
- Publication number
- CN109786867A CN109786867A CN201811494456.2A CN201811494456A CN109786867A CN 109786867 A CN109786867 A CN 109786867A CN 201811494456 A CN201811494456 A CN 201811494456A CN 109786867 A CN109786867 A CN 109786867A
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- liquid nitrogen
- batteries piles
- ion batteries
- 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.)
- Pending
Links
Classifications
-
- 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
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of 1, lithium ion battery packet protection of liquid nitrogen technologies, it is characterised in that: using the ultralow temperature of liquid nitrogen, controls the explosive reaction on fire of lithium ion battery packet rapidly.Guarantee the safety of lithium battery pack；The technology, which can protect lithium ion battery packet, on fire to explode; it explodes if one or more lithium-ion battery monomers are on fire in lithium ion battery packet, make the lithium ion battery around the lithium ion battery of explosion on fire that explosion time on fire occur; the protection can inject liquid nitrogen to explosion site on fire in time; rapid cooling fire extinguishing; control the explosion on fire in lithium ion battery packet; lithium ion battery packet will not be made entirely to occur explosion phenomenon on fire, guarantee lithium ion battery packet using safe.
Description
Technical field
The present invention relates to lithium ion power storage battery field, the protection side of specifically a kind of lithium ion power storage battery packet
Case.
Background technique
The part briefly explains technical background relevant to scheme of the invention, similar to the technical background in paper.
In recent years, with the rapid development of electric car, power lithium-ion battery demand is more and more.Electric vehicle to lithium from
The requirement of sub- battery energy density, gross energy is continuously improved.The energy density and gross energy of lithium ion battery packet are also continuous
It improves.But because the continuous improvement of lithium ion battery energy density, gross energy, risk also have opposite increase tendency.
If the out-of-control phenomenon of explosion on fire occurs in lithium ion battery packet in lithium ion battery, easily lead to rising for lithium ion battery packet
It is hot fried.
In recent years with the more and more electric cars occurred in society, mixed electrical automobile.At the same time, more and more
There is dieseling in these automobiles, are all so special to driver, passenger and surrounding people when traffic accident especially occurs
Not dangerous phenomenon, easily causes casualties.
For the explosion phenomenon on fire of lithium ion battery packet, now with the scheme of many maturations, but each have their own excellent lack
Point.Most commonly battery management system (BMS) controls the whole service state of lithium ion battery packet, it is made to work as far as possible
In a zone of reasonableness, to reduce the probability for explosion phenomenon on fire occur.In addition there are also air-cooled, liquid coolings, Li-ion batteries piles
The various Control Measures such as encapsulating.But generally speaking, these measures have certain limitation, if there is lithium ion
Battery cell explosion on fire has certain prevention and control to act on.But in case of largely Li-ion batteries piles explosion on fire
Phenomenon, these measures are all ineffective.
Summary of the invention
The object of the present invention is to provide a kind of lithium ion battery packet protection of liquid nitrogen technology；The lithium ion battery packet liquid nitrogen is protected
Shield technology has advantage and disadvantage:
Advantage: 1. liquid nitrogen inject Li-ion batteries piles, can rapidly reduce the blast temperature on fire of Li-ion batteries piles, rapidly
Control out-of-control phenomenon.2. liquid nitrogen is small in size, light weight, too large space will not be occupied, while lithium ion battery packet will not be improved
Weight.3. liquid nitrogen is nontoxic, even if being revealed during subsequent lithium ion battery maintenance packet again, as long as being careful not to make
At frostbite, anoxic, personnel's life safety would not be influenced.
The present invention realizes that goal of the invention adopts the following technical scheme that
1, a kind of lithium ion battery packet protection of liquid nitrogen technology, it is characterised in that: using the ultralow temperature of liquid nitrogen, control lithium rapidly
The explosive reaction on fire of ion battery packet, it is characterised in that: guarantee the safety of lithium ion battery packet,
The technology is made of following link:
(1) Li-ion batteries piles are mutually isolated, and isolation method is isolation cover, make each Li-ion batteries piles mutually not by
It influences.
(2) liquid nitrogen can be injected among each isolation cover of (or can manufacture ultralow in a very short period of time as associated class
The gas of warm environment) pipeline.This gas can be injected as needed at any time.
(3) there is temperature detecting module in each Li-ion batteries piles of, if detecting that the temperature of lithium ion battery group is more than
The safe temperature of lithium ion battery, and continue 5 to 10S (or even longer time) when, determine the lithium ion battery in the isolation cover
There is thermal failure reaction in group.
(4) lithium ion battery Bao Zhongyou voltage detection module and current detection module, if detecting abnormal voltage and electricity
Stream, and predetermined state is not recovered at the appointed time, Li-ion batteries piles at abort situation will be judged according to setting rule
There is explosion danger on fire, and starts link (5).
(5) in case of lithium ion battery thermal failure reaction in (3), start (2) step, where to the Li-ion batteries piles
Isolation cover injection liquid nitrogen (or similar gas).
(6) Li-ion batteries piles are mutually isolated, and isolation method is isolation cover, make each Li-ion batteries piles mutually not by
It influences.
(7) liquid nitrogen can be injected among each isolation cover of (or can manufacture ultralow in a very short period of time as associated class
The gas of warm environment) pipeline.This gas can be injected as needed at any time.
(8) there is temperature detecting module in each Li-ion batteries piles of, if detecting that the temperature of lithium ion battery group is more than
The safe temperature of lithium ion battery, and continue 5 to 10S (or even longer time) when, determine the lithium ion battery in the isolation cover
There is thermal failure reaction in group.
(9) lithium ion battery Bao Zhongyou voltage detection module and current detection module, if detecting abnormal voltage and electricity
Stream, and predetermined state is not recovered at the appointed time, Li-ion batteries piles at abort situation will be judged according to setting rule
There is explosion danger on fire, and starts link (5).
(10) in case of lithium ion battery thermal failure reaction in (3), start (2) step, to the Li-ion batteries piles institute
Isolation cover injection liquid nitrogen (or similar gas).
Preferably, a kind of lithium ion battery packet protection of liquid nitrogen technology provided by the invention, liquid nitrogen is as refrigeration drop rapidly
Temperature, fire extinguishing protective gas, can be replaced by other gases, as long as there is room temperature to gasify rapidly, fire-retardant and cooling property rapidly
Matter, such as carbon dioxide, helium gas；
Preferably, a kind of lithium ion battery packet protection of liquid nitrogen technology provided by the invention, the liquid nitrogen as cooling fire extinguishing,
And other are with similar: rapid refrigeration cool-down, fire extinguishing material, can room temperature gasify rapidly heat absorption, can not burn, and
Nontoxicity will not cause harm to the human body.
Preferably, a kind of lithium ion battery packet protection of liquid nitrogen technology provided by the invention, Li-ion batteries piles are separately put
It sets in mutually isolated area of isolation, if explosion phenomenon on fire occur in a Li-ion batteries piles, it will not be jeopardized rapidly
His Li-ion batteries piles, and if liquid nitrogen injects the Li-ion batteries piles, it can only work to the Li-ion batteries piles, to it
He will not have an impact Li-ion batteries piles；
The utility model has the advantages that
Compared with prior art, the present invention its advantages are embodied in:
1. can control the explosion phenomenon on fire of lithium ion battery packet mould group rank, electric car and the peace of personnel are protected
Entirely.This is the level that former protection technique is not achieved.
2. the invention, in protection, movement is fast, explosion phenomenon on fire can be controlled rapidly, and pollution-free, to personnel, ring
Border fanout free region.
3. lithium ion battery packet protection technique used at present, if extensive rise occurs in lithium ion battery in battery pack
It is hot fried, it will be unable to be effectively treated, and protect unspoiled lithium ion battery and vehicle safety, personnel safety；But this hair
Bright technology can be after there are a large amount of lithium ion battery explosions on fire in lithium ion battery packet, and unspoiled lithium ion is left in protection
Safety and vehicle safety, the personnel safety of battery.
Detailed description of the invention
Fig. 1 is the schematic diagram of the lithium ion battery protection of liquid nitrogen technology:
Specific embodiment
Explanation is further explained to the present invention below by way of specific embodiment.
Firstly, there is abnormal phenomenon during lithium ion battery is undertaken to perform work within a time limit and according to specifications and made, lithium-ion battery monomer appearance explosion on fire
Phenomenon, the region will appear abnormal temperature and increase rapidly, detect overheating in temperature sensor, and the duration is more than
It after setting time, can judge explosion phenomenon on fire occur, and judge its severe degree, when reaching sets requirement, controller is vertical
That is starting liquid nitrogen cooling refrigeration.It is first turned on valve F, and valve corresponding to blast area on fire occurs, because of lithium-ion electric
Pond job contract is made within the scope of room temperature, so, if valve is opened at two, liquid nitrogen can gasify rapidly, be injected into explosion on fire
Li-ion batteries piles where region, so that the region is cooled down rapidly, and be full of nitrogen, thus reach cooling fire extinguishing purpose.
After injection liquid nitrogen reaches setting time, valve corresponding to valve F and Li-ion batteries piles is successively closed, stops injection liquid
Nitrogen.Entire lithium ion battery packet protection of liquid nitrogen scheme is fully completed.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of lithium ion battery packet protection of liquid nitrogen technology, it is characterised in that: using the ultralow temperature of liquid nitrogen, control lithium ion rapidly
The explosive reaction on fire of battery pack.Guarantee that the safety of lithium ion battery packet, the technology are made of following link:
(1) Li-ion batteries piles are mutually isolated, and isolation method is isolation cover, keep each Li-ion batteries piles mutually unaffected.
(2) liquid nitrogen can be injected among each isolation cover of (or can manufacture ultralow temperature ring in a very short period of time as associated class
The gas in border) pipeline.This gas can be injected as needed at any time.
(3) have temperature detecting module in each Li-ion batteries piles of, if detect the temperature of lithium ion battery group be more than lithium from
The safe temperature of sub- battery, and it is continued above setting time, it is anti-to determine that thermal failure occur in the Li-ion batteries piles in the isolation cover
It answers.
(4) lithium ion battery Bao Zhongyou voltage detection module and current detection module, if detect abnormal voltage and electric current, and
And predetermined state is not recovered at the appointed time, it will judge there there are on fire Li-ion batteries piles at abort situation according to setting rule
Explosion danger, and start link (5).
(5) in case of lithium ion battery thermal failure reaction in (3), start (2) step, where to the Li-ion batteries piles every
From cover injection liquid nitrogen (or similar gas).
(6) Li-ion batteries piles are mutually isolated, and isolation method is isolation cover, keep each Li-ion batteries piles mutually unaffected.
(7) liquid nitrogen can be injected among each isolation cover of (or can manufacture ultralow temperature ring in a very short period of time as associated class
The gas in border) pipeline.This gas can be injected as needed at any time.
(8) have temperature detecting module in each Li-ion batteries piles of, if detect the temperature of lithium ion battery group be more than lithium from
The safe temperature of sub- battery, and it is continued above setting time, it is anti-to determine that thermal failure occur in the Li-ion batteries piles in the isolation cover
It answers.
(9) lithium ion battery Bao Zhongyou voltage detection module and current detection module, if detect abnormal voltage and electric current, and
And predetermined state is not recovered at the appointed time, it will judge there there are on fire Li-ion batteries piles at abort situation according to setting rule
Explosion danger, and start link (5).
(10) in case of lithium ion battery thermal failure reaction in (3), start (2) step, to where the Li-ion batteries piles
Isolation cover injects liquid nitrogen (or similar gas).
2. a kind of lithium ion battery packet protection of liquid nitrogen technology according to claim 1, it is characterised in that:
Liquid nitrogen can be replaced as rapid refrigeration cool-down, the protective gas of fire extinguishing by other gases, as long as having the rapid gas of room temperature
Change, the fire-retardant and property that cools down rapidly, such as carbon dioxide, helium gas.
3. a kind of lithium ion battery packet protection of liquid nitrogen technology according to claim 1, it is characterised in that:
Liquid nitrogen as cooling fire extinguishing and other with similar: rapid refrigeration cool-down, fire extinguishing material, can room temperature it is fast
Speed gasification heat absorption can not burn, and non-toxic, will not cause harm to the human body.
4. a kind of lithium ion battery packet protection of liquid nitrogen technology according to claim 1, it is characterised in that:
Each Li-ion batteries piles are separated in mutually isolated area of isolation, if a Li-ion batteries piles appearance is on fire
Explosion phenomenon will not jeopardize rapidly other Li-ion batteries piles, and if liquid nitrogen injects the Li-ion batteries piles, only can be to this
Li-ion batteries piles work, and will not have an impact to other Li-ion batteries piles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494456.2A CN109786867A (en) | 2018-12-07 | 2018-12-07 | Lithium ion battery packet protection of liquid nitrogen technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494456.2A CN109786867A (en) | 2018-12-07 | 2018-12-07 | Lithium ion battery packet protection of liquid nitrogen technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109786867A true CN109786867A (en) | 2019-05-21 |
Family
ID=66496097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811494456.2A Pending CN109786867A (en) | 2018-12-07 | 2018-12-07 | Lithium ion battery packet protection of liquid nitrogen technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109786867A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611138A (en) * | 2019-09-02 | 2019-12-24 | 北京航天发射技术研究所 | Cooling system of refrigerator car fuel cell and control method thereof |
| CN110838600A (en) * | 2019-11-13 | 2020-02-25 | 江西优特汽车技术有限公司 | Lithium ion battery pack thermal runaway control system for new energy electric vehicle and operation method |
| CN112701379A (en) * | 2020-12-29 | 2021-04-23 | 重庆理工大学 | Automatic cooling system of nitrogen-water premixed directional jet type battery |
| CN113013512A (en) * | 2019-12-20 | 2021-06-22 | 广州汽车集团股份有限公司 | Power battery pack, battery explosion-proof control system and battery explosion-proof control method |
| WO2021142812A1 (en) * | 2020-01-17 | 2021-07-22 | 华为技术有限公司 | Battery system and fire extinguishing method for battery system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760920A (en) * | 2011-04-29 | 2012-10-31 | 肖克建 | Liquid-nitrogen cooling method and device for automotive power battery pack |
| CN106684499A (en) * | 2017-01-09 | 2017-05-17 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | Method and apparatus for suppressing and preventing thermal runway of lithium ion battery |
| CN108711660A (en) * | 2018-07-27 | 2018-10-26 | 清华大学 | Lithium ion battery |
-
2018
- 2018-12-07 CN CN201811494456.2A patent/CN109786867A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760920A (en) * | 2011-04-29 | 2012-10-31 | 肖克建 | Liquid-nitrogen cooling method and device for automotive power battery pack |
| CN106684499A (en) * | 2017-01-09 | 2017-05-17 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | Method and apparatus for suppressing and preventing thermal runway of lithium ion battery |
| CN108711660A (en) * | 2018-07-27 | 2018-10-26 | 清华大学 | Lithium ion battery |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611138A (en) * | 2019-09-02 | 2019-12-24 | 北京航天发射技术研究所 | Cooling system of refrigerator car fuel cell and control method thereof |
| CN110838600A (en) * | 2019-11-13 | 2020-02-25 | 江西优特汽车技术有限公司 | Lithium ion battery pack thermal runaway control system for new energy electric vehicle and operation method |
| CN113013512A (en) * | 2019-12-20 | 2021-06-22 | 广州汽车集团股份有限公司 | Power battery pack, battery explosion-proof control system and battery explosion-proof control method |
| WO2021142812A1 (en) * | 2020-01-17 | 2021-07-22 | 华为技术有限公司 | Battery system and fire extinguishing method for battery system |
| CN114761091A (en) * | 2020-01-17 | 2022-07-15 | 华为数字能源技术有限公司 | Battery system and fire extinguishing method of battery system |
| CN112701379A (en) * | 2020-12-29 | 2021-04-23 | 重庆理工大学 | Automatic cooling system of nitrogen-water premixed directional jet type battery |
| CN112701379B (en) * | 2020-12-29 | 2022-03-08 | 重庆理工大学 | Automatic cooling system of nitrogen-water premixed directional jet type battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109786867A (en) | Lithium ion battery packet protection of liquid nitrogen technology | |
| CN103782444B (en) | Battery pack extinguishing device | |
| CN105591050A (en) | Battery system and electric automobile with same and energy storage system | |
| KR20120136830A (en) | Apparatus and method for extinguishing fire of high voltage battery pack | |
| Guirong et al. | Research of the electric vehicle safety | |
| CN104466276A (en) | Lithium battery protection device and method | |
| CN102842738A (en) | Lithium ion battery flame-retardant and explosion-proof device and method for electric automobile | |
| CN108565377A (en) | A kind of new-energy automobile environment-friendly battery | |
| US10680298B2 (en) | Battery system for vehicle | |
| CN109045514A (en) | Fire-retarding device and its method, electric car | |
| CN103682193A (en) | High-capacity lithium ion battery | |
| CN206225422U (en) | A kind of batteries of electric automobile group insulation protective hood | |
| WO2019042239A1 (en) | Method for preventing combustion explosion of lithium ion battery | |
| CN206045225U (en) | A kind of electric motor coach lithium battery for automobile power case fire prevention and control system | |
| CN103000967A (en) | Battery safety protection device | |
| KR102531012B1 (en) | Electric mobility charging cable having fire extinguishing agent pipes, and inlet, connector and battery pack integrated with the same | |
| KR102531013B1 (en) | Fire detection and extinguishing method for electric mobility battery pack | |
| CN108159604A (en) | A kind of system of included extinguishing device | |
| CN204230317U (en) | A kind of safety battery bag | |
| Yu et al. | Fire Extinguishing Test of Lithium-Ion Battery Case in Electric Bus | |
| CN105235524A (en) | Electric vehicle battery safety design method | |
| CN107019863A (en) | Automatic fire extinguisher applied to automobile power cell | |
| CN106953125A (en) | The electric energy-storage system of lithium with function of safety protection | |
| Li et al. | Research on functional safety of battery management system (BMS) for electric vehicles | |
| CN102655241A (en) | Electrolyte additive for protecting lithium cell from overcharge and overdischarge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190521 |