CN109273626A - A kind of battery case for cooling down to battery - Google Patents
A kind of battery case for cooling down to battery Download PDFInfo
- Publication number
- CN109273626A CN109273626A CN201810898312.7A CN201810898312A CN109273626A CN 109273626 A CN109273626 A CN 109273626A CN 201810898312 A CN201810898312 A CN 201810898312A CN 109273626 A CN109273626 A CN 109273626A
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- battery
- super
- coolant liquid
- conductive conduit
- temperature
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- 238000001816 cooling Methods 0.000 title claims description 13
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 239000002826 coolant Substances 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 231100000252 nontoxic Toxicity 0.000 claims description 3
- 230000003000 nontoxic effect Effects 0.000 claims description 3
- -1 specifically Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000011217 control strategy Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000005779 cell damage Effects 0.000 description 1
- 208000037887 cell injury Diseases 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000003197 gene knockdown Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M10/65—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
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses the battery cases that a kind of pair of battery cools down, comprising: metal cabinet, it is internal to be used for placing battery and Super-conductive conduit；Super-conductive conduit cools down to the intracorporal battery of metal box for conveying coolant liquid, if battery surface temperature reaches fusing point or the burning of battery thermal runaway of Super-conductive conduit, the Super-conductive conduit fusing rupture, the coolant liquid of spilling gasifies after heated, to be cooled down to battery or be put out a fire；Circulating pump is connect with Super-conductive conduit, for coolant liquid to cool down in Super-conductive conduit internal circulation flow, and to coolant liquid；The problem of administrative unit monitors the temperature of battery, adjusts the output power of circulating pump, solve when battery has flare head for managing the normal charge and discharge of battery, prevents cells burst and explosion, prevents thermal runaway.
Description
Technical field
This application involves cell safeties to protect field, and in particular to a kind of battery case for cooling down to battery.
Background technique
At work, the heat that battery generates be easy to cause security risk to battery energy storage system, especially fills in battery, puts
When electric, battery explosion is easily caused, mostly uses explosion-proof valve to prevent battery explosion greatly in the prior art, but anti-explosion valve structure is simple,
After preliminary buffering, a large amount of heat, flue gas can not be evacuated, and accumulate in battery modules, be easy to light its in battery modules
His battery, causes explosion and the cell damage of entire mould group.And the battery case for installing fire extinguisher is usually the benefit after fire occurs
Measure is rescued, and is only limitted to the fire extinguishing at single battery burning initial stage.It sets off an explosion if thermal runaway occurs for battery pack, fire extinguishing failure,
Battery is destroyed, may cause accident.When battery has flare head, rapid knock down the flame prevents cells burst and explosion, prevents
Only thermal runaway is preventive from possible trouble, is current problem to be solved.
Summary of the invention
The application provides a kind of battery case for cooling down to battery, solves when battery has flare head, resistance
Only cells burst and explosion, the problem of preventing thermal runaway.
This application provides a kind of battery cases for cooling down to battery, comprising:
Metal cabinet, it is internal to be used for placing battery and Super-conductive conduit；
Super-conductive conduit cools down to the intracorporal battery of metal box for conveying coolant liquid, if battery surface temperature reaches heat and surpasses
When fusing point or battery the thermal runaway burning of conduit, the Super-conductive conduit fusing rupture, the coolant liquid of spilling gasifies after heated,
To which battery is cooled down or be put out a fire；
Circulating pump is connect with Super-conductive conduit, for dropping coolant liquid in Super-conductive conduit internal circulation flow, and to coolant liquid
Temperature；
Administrative unit monitors the temperature of battery, adjusts the output work of circulating pump for managing the normal charge and discharge of battery
Rate.
Preferably, further includes:
Storage tank, for storing coolant liquid.
Preferably, further includes:
Alarm, the signal for being fed back according to administrative unit issue alarm.
Preferably, further includes:
The Super-conductive conduit is wrapped in the bottom or four walls of battery surface or device in battery case.
Preferably, the Super-conductive conduit, is specifically low melting point plastic pipe or thin-walled hollow metal catheter, fusion temperature are
80 DEG C~800 DEG C, section can be round, rectangle common geometry, flexible.
Preferably, the superthermal conduit cools down to the intracorporal battery of metal box for conveying coolant liquid, comprising:
In normal work, the coolant liquid recycled in Super-conductive conduit absorbs the heat generated when battery charging and discharging to battery.
Preferably, if the battery surface temperature reaches fusing point or the burning of battery thermal runaway of Super-conductive conduit, the heat
Superconducting pipe fusing rupture, the coolant liquid of spilling gasifies after heated, to be cooled down to battery or be put out a fire, further includes:
If adding the fire retardant of liquid in coolant liquid, in cells burst, the coolant liquid of spilling has fire-retardant effect.
Preferably, the coolant liquid, specifically, chemical property is stablized at normal temperature, nontoxic, specific heat capacity is high, endothermic effect
It is good, and flame can be inhibited.
Preferably, the administrative unit, for adjusting the output power of circulating pump, comprising:
If the battery temperature that administrative unit monitors is less than the peak of predetermined temperature limit value, circulating pump
Output power is normal value；
If the battery temperature that administrative unit monitors is more than the peak of predetermined temperature limit value, increase circulating pump
Output power.
Preferably, if the battery temperature that the administrative unit monitors is less than the highest of predetermined temperature limit value
Value, then the output power of circulating pump is normal value, comprising:
The temperature limit of battery can be set to 50~80 DEG C, coolant liquid internal circulating load V (ml/min) and battery capacity Q
(Ah) relationship between is V=aQ, wherein 0.01≤a≤10.
Preferably, if the battery temperature that the administrative unit monitors is more than the peak of predetermined temperature limit value,
Then increase the output power of circulating pump, comprising:
If battery temperature increases the output power of circulating pump, coolant liquid is followed more than after preset battery temperature limit value
Relationship between circular rector V (ml/min) and battery capacity Q (Ah) is V=maQ, wherein 1 < m≤10.
Preferably, further includes:
After coolant liquid internal circulating load increase, after battery temperature returns normal 1~10min, cell output returns initial
State.
Preferably, further includes:
If wherein 10s≤t≤200s, battery temperature, which does not return, normally to be made within the t time after coolant liquid internal circulating load increase
With temperature range, then management system stops battery use, while alarm issues alarm.
It can be seen that a kind of battery case for cooling down to battery that the application mentions, passes through real-time monitoring battery
Temperature reduces the temperature of battery by the circulation for the coolant liquid being wrapped in the Super-conductive conduit of battery surface, and in the temperature of battery
When degree is more than limit value, Super-conductive conduit fusing rupture, coolant liquid outflow, to battery fast cooling, solving has flare in battery
When head, the problem of preventing cells burst and explosion, prevent thermal runaway.
Detailed description of the invention
Fig. 1 is the schematic diagram that Super-conductive conduit provided by the embodiments of the present application is wound in battery surface；
Fig. 2 be the invention relates to administrative unit control strategy schematic diagram.
Specific embodiment
Many details are explained in the following description in order to fully understand the application.But the application can be with
Much it is different from other way described herein to implement, those skilled in the art can be without prejudice to the application intension the case where
Under do similar popularization, therefore the application is not limited by following public specific implementation.
Fig. 1 is the schematic diagram that cooling duct provided by the embodiments of the present application is wound in battery surface, below with reference to Fig. 1 to this
Application embodiment is described in detail.
The application provides a kind of battery case for cooling down to battery, comprising:
Metal cabinet, it is internal to be used for placing battery and Super-conductive conduit；
Super-conductive conduit cools down to the intracorporal battery of metal box for conveying coolant liquid, if battery surface temperature reaches heat and surpasses
When fusing point or battery the thermal runaway burning of conduit, the Super-conductive conduit fusing rupture, the coolant liquid of spilling gasifies after heated,
To which battery is cooled down or be put out a fire；
Circulating pump is connect with Super-conductive conduit, for dropping coolant liquid in Super-conductive conduit internal circulation flow, and to coolant liquid
Temperature；
Administrative unit, for managing the normal charge and discharge of battery, monitoring temperature adjusts the output power of circulating pump.
Battery case is specially metal cabinet, internal to be used for placing battery and Super-conductive conduit, and arrangement is assembled in battery case
Several single batteries form battery pack, have gap between battery, then Super-conductive conduit can wind in battery surface, such as
Shown in Fig. 1, Super-conductive conduit can also can also equally play the work to battery cooling with bottom of the device in battery case or four walls
With, but being wound around battery surface is a kind of preferably mode, the contact area of such Super-conductive conduit and battery is big, is more advantageous to
Heat dissipation.
Super-conductive conduit cools down to the intracorporal battery of metal box for conveying coolant liquid, if battery surface temperature reaches heat and surpasses
When fusing point or battery the thermal runaway burning of conduit, the Super-conductive conduit fusing rupture, the coolant liquid of spilling gasifies after heated,
To which battery is cooled down or be put out a fire.Super-conductive conduit can be low melting point plastic pipe or thin-walled hollow metal catheter, fusing temperature
Degree is 80 DEG C~800 DEG C, and section is the common geometries such as circle, rectangle, flexible.The low melting point plastic pipe or thin-walled used
Hollow metal conduit, fusion temperature are 80 DEG C~800 DEG C, it is ensured that before thermal runaway burning or explosion occur for battery, heat
The coolant liquid of superconduction tracheal rupture, the inside can flow out.The section of Super-conductive conduit can be the common geometries such as circle, rectangle,
As long as not influencing to contact with battery.In addition Super-conductive conduit is flexible, for being wrapped in battery surface.
Circulating pump is connect with Super-conductive conduit, for dropping coolant liquid in Super-conductive conduit internal circulation flow, and to coolant liquid
Temperature, the natural cooling when coolant liquid passes through circulating pump.
At work, charge and discharge can generate heat to battery, when the temperature of battery is not above temperature limit, that is, electricity
When the temperature in pond is also in the range of safety, the heat that is generated when absorbing battery charging and discharging by the coolant liquid that recycles in Super-conductive conduit
Amount, cools down to battery, so that the temperature of battery is maintained in safe range.If battery surface temperature reaches Super-conductive conduit
Fusing point or battery thermal runaway when burning, Super-conductive conduit fusing rupture, the coolant liquid of spilling gasifies after heated, thus
Cooled down to battery or is put out a fire.It the fire retardant appropriate for adding liquid can also be overflowed in cells burst in coolant liquid
Coolant liquid have fire-retardant effect.Coolant liquid, specifically, chemical property stabilization at normal temperature, nontoxic, specific heat capacity can be selected
Height, the good coolant liquid of endothermic effect by the smoldering agent of addition liquid appropriate play the role of that flame can be inhibited.
Administrative unit monitors the temperature of battery, adjusts the output work of circulating pump for managing the normal charge and discharge of battery
Rate.Administrative unit is used to manage the charge and discharge of battery, that is, the normal work of battery, while passing through sensor real-time monitoring electricity
The temperature in pond, if the battery temperature that administrative unit monitors is less than the peak of predetermined temperature limit value, circulating pump
Output power be normal value；If the battery temperature that administrative unit monitors is more than the peak of predetermined temperature limit value,
Then increase the output power of circulating pump.Administrative unit is to the control strategy of circulating pump, specifically, may refer to Fig. 2, Fig. 2 is this
The control strategy schematic diagram of the administrative unit provided is provided.It is described in detail below with reference to Fig. 2.
The temperature limit of battery can be set to 50~80 DEG C, temperature limit refers to battery at work, and temperature exists
50~80 DEG C are to belong to normal range (NR), that is, safe range, the lower temperature when certain battery works the better, but general feelings
It is chemically reacted when battery works under condition, can all generate heat, different temperature can also be arranged according to different types of battery
Spend limit value.When the temperature of battery is less than the peak of predetermined temperature limit value, the output power of circulating pump is constant, this
When coolant liquid internal circulating load V (ml/min) and battery capacity Q (Ah) between relationship be V=aQ, wherein 0.01≤a≤10.If battery
Temperature is more than that the peak of preset battery temperature limit value increases simultaneously then administrative unit reduces the output power of battery
Add the output power of circulating pump, the relationship between coolant liquid internal circulating load V (ml/min) and battery capacity Q (Ah) is V=maQ, wherein 1
<m≤10.The reduction of battery output function, the heat for generating battery are reduced, and with the increase of circulation pump power output, it is cold
But the internal circulating load of liquid also increases, then Super-conductive conduit can take away more heats of battery generation, battery temperature can be made to return just
Often, it that is, returns in temperature limit, after battery temperature that administrative unit monitors returns normal 1~10min, battery at this time
In temperature limit, belong to safe range, it is possible to which cell output is returned into original state, that is, battery recovery
Normal work.If wherein 10s≤t≤200s, battery temperature do not return just within the t time after coolant liquid internal circulating load increase
It is often used temperature range, then administrative unit stops battery use, while alarm issues alarm.
The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, although referring to above-described embodiment pair
The present invention is described in detail, those of ordinary skill in the art still can to a specific embodiment of the invention into
Row modifies perhaps equivalent replacement and these exist without departing from any modification of spirit and scope of the invention or equivalent replacement
Apply within pending claims of the invention.
Claims (13)
1. a kind of battery case for cooling down to battery characterized by comprising
Metal cabinet, it is internal to be used for placing battery and Super-conductive conduit；
Super-conductive conduit cools down to the intracorporal battery of metal box, for conveying coolant liquid if battery surface temperature reaches Super-conductive conduit
Fusing point or battery thermal runaway when burning, Super-conductive conduit fusing rupture, the coolant liquid of spilling gasifies after heated, thus
Cooled down to battery or is put out a fire；
Circulating pump is connect with Super-conductive conduit, for coolant liquid to cool down in Super-conductive conduit internal circulation flow, and to coolant liquid；
Administrative unit monitors the temperature of battery, adjusts the output power of circulating pump for managing the normal charge and discharge of battery.
2. battery case according to claim 1, which is characterized in that further include:
Storage tank, for storing coolant liquid.
3. battery case according to claim 1, which is characterized in that further include:
Alarm, the signal for being fed back according to administrative unit issue alarm.
4. battery case according to claim 1, which is characterized in that further include:
The Super-conductive conduit is wrapped in the bottom or four walls of battery surface or device in battery case.
5. battery case according to claim 1, which is characterized in that the Super-conductive conduit is specifically low melting point plastic pipe
Or thin-walled hollow metal catheter, fusion temperature are 80 DEG C~800 DEG C, section can be round, rectangle common geometry, bendable
It is bent.
6. battery case according to claim 1, which is characterized in that the superthermal conduit, for conveying coolant liquid, to metal
The intracorporal battery cooling of case, comprising:
In normal work, the coolant liquid recycled in Super-conductive conduit absorbs the heat generated when battery charging and discharging to battery.
7. battery case according to claim 1, which is characterized in that if the battery surface temperature reaches the molten of Super-conductive conduit
When point or battery thermal runaway are burnt, the Super-conductive conduit fusing rupture, the coolant liquid of spilling gasifies after heated, thus to electricity
Pond is cooled down or is put out a fire, further includes:
If adding the fire retardant of liquid in coolant liquid, in cells burst, the coolant liquid of spilling has fire-retardant effect.
8. battery case according to claim 1, which is characterized in that the coolant liquid, specifically, chemical property at normal temperature
Stablize, nontoxic, specific heat capacity is high, and endothermic effect is good, and can inhibit flame.
9. battery case according to claim 1, which is characterized in that the administrative unit, for adjusting the output of circulating pump
Power, comprising:
If the battery temperature that administrative unit monitors is less than the peak of predetermined temperature limit value, the output of circulating pump
Power is normal value；
If the battery temperature that administrative unit monitors is more than the peak of predetermined temperature limit value, increase the defeated of circulating pump
Power out.
10. battery case according to claim 9, which is characterized in that if the battery temperature that the administrative unit monitors is not
More than the peak of predetermined temperature limit value, then the output power of circulating pump is normal value, comprising:
It can set the temperature limit of battery to 50~80 DEG C, between coolant liquid internal circulating load V (ml/min) and battery capacity Q (Ah)
Relationship be V=aQ, wherein 0.01≤a≤10.
11. battery case according to claim 10, which is characterized in that if the battery temperature that the administrative unit monitors is super
The peak of predetermined temperature limit value is crossed, then increases the output power of circulating pump, comprising:
If battery temperature increases the output power of circulating pump, coolant liquid internal circulating load V more than after preset battery temperature limit value
(ml/min) relationship between battery capacity Q (Ah) is V=maQ, wherein 1 < m≤10.
12. electronic box according to claim 11, which is characterized in that further include:
After coolant liquid internal circulating load increase, after battery temperature returns normal 1~10min, cell output returns to original state.
13. battery case according to claim 11, which is characterized in that further include:
If wherein 10s≤t≤200s, battery temperature do not return normal use temperature within the t time after coolant liquid internal circulating load increase
Range is spent, then management system stops battery use, while alarm issues alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810898312.7A CN109273626A (en) | 2018-08-08 | 2018-08-08 | A kind of battery case for cooling down to battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810898312.7A CN109273626A (en) | 2018-08-08 | 2018-08-08 | A kind of battery case for cooling down to battery |
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| Publication Number | Publication Date |
|---|---|
| CN109273626A true CN109273626A (en) | 2019-01-25 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810898312.7A Pending CN109273626A (en) | 2018-08-08 | 2018-08-08 | A kind of battery case for cooling down to battery |
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Application publication date: 20190125 |