CN114614103B - Cooling device and lithium battery cooling system - Google Patents
Cooling device and lithium battery cooling system Download PDFInfo
- Publication number
- CN114614103B CN114614103B CN202210278485.5A CN202210278485A CN114614103B CN 114614103 B CN114614103 B CN 114614103B CN 202210278485 A CN202210278485 A CN 202210278485A CN 114614103 B CN114614103 B CN 114614103B
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- Prior art keywords
- battery
- heat
- cooling
- cooling device
- liquid
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- 238000001816 cooling Methods 0.000 title claims abstract description 64
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 20
- 239000000110 cooling liquid Substances 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims description 37
- 230000017525 heat dissipation Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 7
- 239000002826 coolant Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010405 anode material Substances 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000000034 method 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
-
- 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/005—Devices for making primary 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a cooling device which comprises a heat conduction device and a box body, wherein the box body is used for containing cooling liquid, the heat conduction device is arranged in the box body, and the heat conduction device comprises a heat transfer part which is used for being contacted with a battery electrode so as to absorb heat in the battery and transfer the heat to the cooling liquid. The cooling device is used for directly contacting the pole of the battery with the heat conducting device, so that heat can be quickly absorbed from the inside of the battery, the temperature in the battery is reduced, and a good cooling effect is achieved; meanwhile, the cooling liquid is recycled, so that the waste can be reduced, and the energy loss is reduced. The invention also provides a lithium battery cooling system.
Description
Technical Field
The invention relates to the technical field of lithium battery manufacturing, in particular to a cooling device and a lithium battery cooling system.
Background
The battery baking process in the lithium battery manufacturing process needs to cool the battery, and the traditional cooling mode is air cooling, so that cold air is blown to the surface of the battery, and the purpose of cooling the battery is achieved.
The traditional air cooling mode has large limitation, cold air can only be blown on the surface of the battery shell, and as a diaphragm exists between the anode material and the cathode material in the battery, the diaphragm prevents the heat in the battery from being dispersed, and the air cooling effect is reduced; meanwhile, cold air blown to the battery heats up due to the fact that the cold air absorbs heat of the battery, most of hot air is discharged, recycling is not conducted, and energy loss is increased. Therefore, the air cooling does not have a good cooling effect, the repeated utilization rate of the cold air is low, and the energy loss is large.
Therefore, it is necessary to provide a novel cooling device and a cooling system for lithium batteries to solve the above-mentioned problems in the prior art.
Disclosure of Invention
The invention aims to provide a cooling device and a lithium battery cooling system, which can improve the cooling effect of a battery by reducing the internal temperature of the battery, and can reduce energy consumption by recycling cooling liquid.
In order to achieve the above object, the cooling device of the present invention includes a heat conduction device and a case, the case is used for containing a cooling liquid, the heat conduction device is disposed in the case, the heat conduction device includes a heat transfer portion, and the heat transfer portion is used for contacting with a battery electrode to absorb heat in the battery and transfer the heat to the cooling liquid.
The cooling device has the beneficial effects that: the heat transfer part is used for contacting with the battery electrode to absorb heat in the battery and transfer the heat to the cooling liquid, so that the internal temperature of the battery is reduced, and a good cooling effect is achieved.
Optionally, the heat conduction device further comprises a heat dissipation part, and the heat dissipation part is in contact with the heat transfer part.
Optionally, the cooling device further comprises a fixture, the fixture comprises at least 1 battery groove, the battery groove is used for fixing the battery, the battery groove comprises a hole site, and the hole site is matched with a pole post of the battery.
Optionally, the heat transfer part comprises a heat conducting block and a protrusion, wherein the protrusion is arranged on the heat conducting block, and the protrusion is matched with the hole site.
Optionally, the box includes feed liquor valve and play liquid valve, the feed liquor valve with go out liquid valve all set up in on the box lateral wall.
Optionally, the tank further includes a temperature sensor, where the temperature sensor includes a temperature sensing portion, the temperature sensing portion is located inside the tank, and the temperature sensor is used to monitor whether the temperature of the cooling liquid in the tank reaches a set value.
Optionally, the tank body further comprises a liquid level sensor, the liquid level sensor comprises a liquid level sensing part, the temperature sensing part is located inside the tank body, and the liquid level sensor is used for detecting whether the liquid level of the cooling liquid reaches a set value.
Optionally, the heat transfer portion has a thermal conductivity greater than a thermal conductivity of the heat dissipation portion.
Optionally, the material of the heat transfer part includes pure copper, and the material of the heat dissipation part includes an aluminum alloy.
The invention also provides a lithium battery cooling system, which comprises the cooling device and at least 1 battery.
The lithium battery cooling system has the beneficial effects that: the lithium battery cooling system is used for directly contacting the pole of the battery with the heat conduction device, so that heat can be rapidly absorbed from the inside of the battery, the temperature inside the battery is reduced, and a good cooling effect is achieved.
Drawings
FIG. 1 is an exploded view of a cooling device according to some embodiments of the present invention;
FIG. 2 is a schematic view of a clamp according to some embodiments of the invention;
FIG. 3 is a schematic view of a battery compartment according to some embodiments of the invention;
FIG. 4 is a schematic diagram of a heat conduction device according to some embodiments of the invention;
FIG. 5 is an exploded view of a lithium battery cooling system according to some embodiments of the present invention;
fig. 6 is a schematic structural view of a battery;
fig. 7 is a schematic structural diagram of a cooling system for a lithium battery according to some embodiments of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and the like means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof without precluding other elements or items.
In view of the problems existing in the prior art, an embodiment of the present invention provides a cooling device, including a heat conduction device and a case, where the case is used to hold a cooling liquid, the heat conduction device is disposed in the case, and the heat conduction device includes a heat transfer portion, where the heat transfer portion is used to contact with a battery electrode, so as to absorb heat in the battery and transfer the heat to the cooling liquid.
Fig. 1 is an exploded view of a cooling device according to some embodiments of the present invention. Referring to fig. 1, the cooling device includes a heat-conducting device 2 and a case 1, the case 1 is used for containing a cooling liquid (not shown in the figure), the heat-conducting device 2 is disposed in the case 1, the number of the heat-conducting devices 2 is 24, the heat-conducting device 2 includes a heat-transferring portion 21, the heat-transferring portion 21 is used for contacting with an electrode of a battery (not shown in the figure), and the heat-transferring portion 21 contacts with the cooling liquid to absorb heat inside the battery and transfer the heat to the cooling liquid.
According to the cooling device provided by the invention, the pole of the battery is directly contacted with the heat conducting device, so that heat can be quickly absorbed from the interior of the battery, the temperature in the battery is reduced, and a good cooling effect is achieved.
In some embodiments, the heat conduction device further comprises a heat dissipation portion in contact with the heat transfer portion.
Referring to fig. 1, the heat conduction device 2 further includes a heat dissipation part 22, the heat dissipation part 22 being in contact with the heat transfer part 21, the heat transfer part 21 and the heat dissipation part 22 being both in contact with the cooling liquid to further rapidly transfer heat absorbed from the inside of the battery to the cooling liquid.
In some embodiments, the cooling device further comprises a clamp comprising at least 1 battery well for securing the battery, the battery well comprising a hole site that mates with a post of the battery.
Fig. 2 is a schematic structural view of a fixture according to some embodiments of the present invention, and fig. 3 is a schematic structural view of a battery jar according to some embodiments of the present invention. Referring to fig. 2 and 3, the fixture 3 includes 24 battery slots 31, the battery slots 31 are used for fixing the battery (not shown in the drawings), each battery slot 31 includes two hole sites 311, the hole sites 311 are square, the battery includes two poles, the poles are cubes, and the cross sections of the poles are square, the hole sites 311 are in one-to-one correspondence with the poles, the hole sites 311 are the same as the cross sections of the poles in size, and the poles are embedded in the hole sites 311, so that the hole sites 311 can fix the poles of the battery.
Referring to fig. 2, the fixture 3 further includes edges 32, 24 battery slots 31 are arranged in a matrix, the edges 32 are connected with openings of the 24 battery slots 31, and the edges 32 extend outwards at the openings of the 24 battery slots 31.
In some embodiments, the heat transfer portion includes a heat conducting block and a protrusion, the protrusion being disposed on the heat conducting block, the protrusion being engaged with the hole site.
Fig. 4 is a schematic structural view of a heat conduction device according to some embodiments of the present invention. Referring to fig. 4, the heat conduction device includes a heat transfer part 21 and a heat dissipation part 22, the heat transfer part 21 is in contact with the heat dissipation part 22, the heat transfer part 21 includes a heat conduction block 212 and two protrusions 211, the heat conduction block 212 is in a cubic shape, the protrusions 211 are disposed on the heat conduction block 212, and the protrusions 211 are in a cubic shape.
Referring to fig. 3, each of the battery slots 31 includes two hole sites 311, the hole sites 311 are square, the hole sites 311 are in one-to-one correspondence with the protrusions 211, and the hole sites 311 have the same cross-sectional dimensions as the protrusions 211, and the protrusions are embedded in the hole sites, so that the hole sites 311 can fix the protrusions 211.
In some embodiments, the heat sink includes at least one fin.
Referring to fig. 4, the heat dissipating part 22 includes 12 heat dissipating fins 221, each of the heat dissipating fins 221 is arranged in sequence perpendicular to the heat conducting block 212 and is in contact with the heat conducting block 212, and the heat dissipating fins 221 and the protrusions 211 are disposed on 2 opposite faces of the heat conducting block 212.
In some embodiments, the thermal conductivity of the heat transfer portion 21 is greater than the thermal conductivity of the heat dissipation portion 22.
In some embodiments, the material of the heat conducting block 212 and the protrusion 211 comprises pure copper, and the material of the heat sink 221 comprises an aluminum alloy.
Referring to fig. 1, the tank 1 includes a liquid inlet valve 11 and a liquid outlet valve 12, the liquid inlet valve 11 and the liquid outlet valve 12 are both disposed on the same side wall of the tank, the liquid inlet valve 11 is disposed above the liquid outlet valve 12, the liquid inlet valve 11 is used for controlling the cooling liquid to enter the tank 1, and the liquid outlet valve 12 is used for controlling the cooling liquid to circulate and flow back to a cooler (not shown in the figure).
Referring to fig. 1, the tank 1 further includes a liquid level sensor 13 and a temperature sensor 14, the liquid level sensor 13 includes a liquid level sensing portion 131, the liquid level sensing portion 131 is located inside the tank 1, and the liquid level sensor 13 is used for detecting whether the liquid level of the cooling liquid reaches a set value.
In some embodiments, the liquid level sensor 13 further includes a liquid level gauge 132, and the liquid level gauge 132 is located on an outer sidewall of the case 1.
Referring to fig. 1, the temperature sensor 14 includes a temperature sensing part 141, the temperature sensing part 141 is located inside the tank 1, and the temperature sensor 14 is configured to monitor whether the temperature of the coolant in the tank reaches a set value.
In some embodiments, the temperature sensor 14 further comprises a temperature dial 142, the temperature dial 142 being located on an outer side wall of the case 1.
The cooling device provided by the invention can circularly use the cooling liquid, so that the waste can be reduced, and the energy loss can be reduced.
The invention also provides a lithium battery cooling system, which comprises the cooling device and at least 1 battery.
Fig. 5 is an exploded view of a cooling system for a lithium battery according to some embodiments of the present invention, and fig. 6 is a schematic view of the structure of the battery. Referring to fig. 5, the cooling system for lithium battery includes the cooling device and 24 batteries 4, 24 battery slots 31 are arranged in a matrix, 24 batteries 4 and 24 battery slots 31 are arranged in the same manner, and 24 batteries 4 are reversely placed in 24 battery slots 31. The box 1 is used for containing cooling liquid, the clamp 3 with the battery 4 clamped and the heat conduction device 2 are placed in the box 1 from top to bottom, and the heat conduction block 212 and the heat dissipation fins 221 are soaked in the cooling liquid.
Referring to fig. 5, since the bottom surface of the battery can 31 has a certain thickness, the pole 41 is inserted into the hole 311 from above, the protrusion 211 is inserted into the hole 311 from below, the hole 311 simultaneously fixes the pole 41 and the protrusion 211, and the pole 41 and the protrusion 211 are in contact.
Fig. 7 is a schematic structural diagram of a cooling system for a lithium battery according to some embodiments of the present invention. Referring to fig. 7, the edge 32 of the jig 3 with the battery 4 is placed over the opening of the case 1, the jig 3 encapsulates the opening of the case 1, and the coolant and the heat conduction means 2 are located inside the case.
According to the cooling system for the lithium battery, provided by the invention, by utilizing the good heat conductivity and heat conduction principle of metal, the temperature of the battery after baking is generally 90-120 ℃, the heat conduction block 212 and the cooling fin 221 are soaked in the cooling liquid (the temperature of the cooling liquid is generally-50-0 ℃), when the post 41 of the high-temperature battery 4 after baking is contacted with the protrusion 211 of the heat transfer part 21, the heat of the positive and negative metal foil materials in the battery can be transferred to the protrusion 211 through the post 41 of the positive and negative electrode, the protrusion 211 is transferred to the heat conduction block 212 and then transferred to the cooling fin 221, the heat is transferred to the cooling liquid again, the cooling liquid absorbs the heat, and the internal temperature of the battery 4 is reduced, and the cooling effect is improved. The cooling liquid absorbs heat of the battery, so that the temperature of the cooling liquid is increased, when the temperature of the cooling liquid is increased to a set value, the temperature sensor 14 transmits signals, the liquid inlet valve 11 and the liquid outlet valve 12 are automatically opened, the cooling liquid circularly flows back to the cooler and the box body 1, and when the liquid level sensor 13 detects that the cooling liquid reaches the set height, the liquid inlet valve 11 and the liquid outlet valve 12 are closed.
According to the lithium battery cooling system provided by the invention, a battery inverted clamping mode is adopted, and the pole of the battery is directly contacted with the heat conduction device, so that heat can be rapidly absorbed from the interior of the battery, the temperature in the battery is reduced, and a good cooling effect is achieved; meanwhile, the cooling liquid is recycled, so that the waste can be reduced, and the energy loss is reduced.
While embodiments of the present invention have been described in detail hereinabove, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. It is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the invention described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
Claims (9)
1. The utility model provides a cooling device, its characterized in that includes heat conduction device and box, the box is used for holding the coolant liquid, heat conduction device set up in the box, heat conduction device includes heat transfer portion, heat transfer portion is used for contacting with the battery electrode to absorb the inside heat of battery and transmit for the coolant liquid, cooling device still includes anchor clamps, anchor clamps include at least 1 battery jar, the battery jar is used for fixing the battery, the battery jar includes the hole site, heat transfer portion includes the arch, the hole site can be fixed simultaneously protruding with the utmost point post of battery, just the utmost point post with protruding contacts.
2. The cooling device of claim 1, wherein the heat conducting device further comprises a heat dissipating portion in contact with the heat transfer portion.
3. The cooling device of claim 1, wherein the heat transfer portion comprises a heat conducting block, and the protrusion is disposed on the heat conducting block.
4. The cooling device of claim 1, wherein the tank includes a liquid inlet valve and a liquid outlet valve, both of which are disposed on the side wall of the tank.
5. The cooling device of claim 4, wherein the tank further comprises a temperature sensor comprising a temperature sensing portion, the temperature sensing portion being located inside the tank, the temperature sensor being configured to monitor whether the temperature of the cooling fluid in the tank reaches a set point.
6. The cooling device of claim 4, wherein the tank further comprises a liquid level sensor comprising a liquid level sensing portion located inside the tank, the liquid level sensor being configured to detect whether a liquid level of the cooling liquid reaches a set value.
7. The cooling device according to claim 2, wherein the heat transfer portion has a thermal conductivity greater than that of the heat radiating portion.
8. The cooling device of claim 7, wherein the material of the heat transfer portion comprises pure copper and the material of the heat dissipation portion comprises an aluminum alloy.
9. A lithium battery cooling system comprising the cooling device of any one of claims 1-8 and at least 1 battery.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202210278485.5A CN114614103B (en) | 2022-03-21 | 2022-03-21 | Cooling device and lithium battery cooling system |
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CN202210278485.5A CN114614103B (en) | 2022-03-21 | 2022-03-21 | Cooling device and lithium battery cooling system |
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CN114614103A CN114614103A (en) | 2022-06-10 |
CN114614103B true CN114614103B (en) | 2024-02-09 |
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CN202210278485.5A Active CN114614103B (en) | 2022-03-21 | 2022-03-21 | Cooling device and lithium battery cooling system |
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JPH0562957U (en) * | 1992-01-28 | 1993-08-20 | 株式会社ユアサコーポレーション | Storage battery with radial fins |
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CN114614103A (en) | 2022-06-10 |
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