CN207967176U - A kind of bionical fuel cell with automatic control temperature function - Google Patents

A kind of bionical fuel cell with automatic control temperature function Download PDF

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Publication number
CN207967176U
CN207967176U CN201820351309.9U CN201820351309U CN207967176U CN 207967176 U CN207967176 U CN 207967176U CN 201820351309 U CN201820351309 U CN 201820351309U CN 207967176 U CN207967176 U CN 207967176U
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China
Prior art keywords
bionical
heat pipe
fuel cell
shell
hydrophilic
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Expired - Fee Related
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CN201820351309.9U
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Chinese (zh)
Inventor
卢国龙
王艺
马健
袁港
李致远
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Jilin University
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Jilin University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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Abstract

The utility model discloses a kind of bionical fuel cells with automatic control temperature function, belong to air cathode field of fuel cell technology, including shell, electrolyte outlet, sheet aluminium anodes, sheet like air cathode and bionical heat pipe；Electrolyte is full of in the shell, sheet aluminium anodes is put by shell upper center in electrolyte, and sheet like air cathode is placed in the symmetrical inner wall both sides of the shell, and bionical heat pipe above shell by being put into electrolyte；The inner wall of the bionical heat pipe is staggeredly formed by horizontally-parallel hydrophilic boss and parallel longitudinal hydrophilic boss, and hydrophobic groove is formed between hydrophilic boss.The heat that the bionical fuel cell occurs to generate when redox reaction makes electrolyte temperature increase, temperature reaches heat pipe structure later, the heated boiling of coolant liquid, since heat pipe can improve boiling heat transfer coefficient and critical heat flux density, achievees the purpose that high-efficiency heat conduction in heat pipe.This novel bionic fuel cell design can achieve the purpose that temp auto-controlled, have high heat exchanger effectiveness.

Description

A kind of bionical fuel cell with automatic control temperature function
Technical field
The utility model category air cathode field of fuel cell technology, and in particular to a kind of bionical with automatic control temperature function Fuel cell.
Background technology
Fuel cell has efficient, clean advantage as a kind of new energy, becomes exploitation hot spot.And aluminium air fuel Battery have specific energy density big, light weight, long lifespan, low emission, portable, low noise, it is safe many advantages, such as, and aluminium The ratio energy of air-fuel battery is 2.19A/g, is higher than a lot of other liveness metals such as magnesium 2.20A/g, zinc 0.82A/g etc., Development prospect is wide.Various countries pay attention to the development of Vehicular aluminium air-fuel battery simultaneously.Vehicle-mounted aluminium air is fired Expect battery, it is advantageous that easy to use, maintenance cost is low, and specific energy density is higher.
Temperature control technology is immature at this stage for aluminium air fuel cell, and temperature is excessively high to cause battery failure so that quick-fried The problems such as fried.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model uses on primary aluminum air-fuel battery basis The upper bionical heat pipe structure of design.The study found that dog tongue surface tightens the uniform milky microstructure unit body of solid matter cloth, this The arrangement mode of front-back staggered is presented on the whole for kind Unit agent structure and there are certain angle of inclination, dog tongue surface micro-structure lists There are small trifid structures for the tip of first body, and intermediate high both ends are low.Dog tongue surface occur exotherm when, vapor with The separation of liquid is accelerated, and due to the cohesion force effect that vapor is attracted each other by molecule, mutually restricts, a few cluster vapor slugs are gradual Gather fusion, form large-scale vapor, accelerates boiling heat transfer rate.This structure is incorporated in heat pipe design, application In aluminium air fuel cell, battery temperature can be effectively solved the problems, such as.
Based on dog tongue performance characteristic value, the utility model designs a kind of knot of novel bionic air cathode battery cooling system Structure increases alternate close and distant water surface design on the basis of the canine tooth structure, reduces the gas of inside heat pipe coolant liquid Bubble detachment frequency simultaneously accelerates bubble disengaging frequency, improves the efficiency of boiling heat transfer.The bionical heat pipe heat radiation area is big, heat dissipation effect Rate is high, can effective solution air cathode battery temperature it is excessively high caused by battery failure problem, and expense is relatively low, for improving Air-fuel battery performance is of great significance with safety.
The utility model is achieved through the following technical solutions：
A kind of bionical fuel cell with automatic control temperature function, including shell 1, electrolyte outlet 3, sheet aluminium anodes 6, piece Shape air cathode 7 and bionical heat pipe 5；Electrolyte 9 is full of in the shell 1, sheet aluminium anodes 6 is put by 1 upper center of shell In electrolyte 9, sheet like air cathode 7 is placed in the symmetrical inner wall both sides of the shell 1, and bionical heat pipe 5 is put by 1 top of shell In electrolyte 9, do not contacted with aluminium anodes 6 and air cathode 7；Electrolyte outlet 3 is located at 1 lower section of shell, is electrolysed with enclosure interior Liquid unicom is exported discarded electrolyte by hydraulic pump.
Wherein, the inner wall of the bionical heat pipe 5 is interlocked by horizontally-parallel hydrophilic boss and parallel longitudinal hydrophilic boss It forms, forms hydrophobic groove between hydrophilic boss, the distance between described hydrophilic boss of transverse direction is 7 millimeters, and the longitudinal direction is hydrophilic The distance between boss is 7 millimeters, and the hydrophobic depth of groove of formation is 7 millimeters.
Further, 6 thickness of sheet aluminium anodes is 3-4 centimetres, and the thickness of the sheet like air cathode 7 is 1- 3 millimeters.
Further, the sheet like air cathode 7 is fixed on the inner wall both sides of shell 1, piece by stock 4 and bolt 2 It is coated with glass cement between the air cathode 7 and shell 1 of shape structure, plays sealing function.
Further, the material of the bionical heat pipe 5 is organic glass, is process through 3D printing technique, i.e., by institute Bionical heat pipe structure output is stated to be printed by 3D printer after 3D models.
Further, bionical heat pipe is divided into two parts by the bionical heat pipe 5 using 1 upper surface of shell as interface, on Half portion is divided into condensation segment, and lower half portion is boiling section, and air is full of in condensation segment, and boiling section is equipped with coolant liquid, condensation segment top It is additionally provided with air cooling equipment.
Further, the quantity of the bionical heat pipe 5 is 4.
Further, the shape of the hydrophilic boss 10 is trifid structure, i.e., is divided into trident, intermediate high both ends from root It is low, and by root upwards with 30 degree of angle of inclination.
Further, hydrophilic film TiO is coated on the hydrophilic boss 102- PDMS, the hydrophilic film thickness of coating Range is 0.3-0.5 millimeters, and the hydrophilic film is prepared by sol-gel method.
Further, super-hydrophobic epoxy resin composite coating is sprayed on the hydrophobic groove 11；The thickness range of coating It is 0.3-0.5 millimeters.
A kind of operation principle of bionical fuel cell with automatic control temperature function of the utility model is as follows：
Redox reaction 4Al+3O occurs for the bionical fuel cell of the utility model2+6H2O→4Al(OH)3When generate Heat makes electrolyte temperature increase, and temperature reaches bionical heat pipe later, the heated boiling of coolant liquid in bionical heat pipe.Due to bionical heat The groove temperature of inside pipe wall increases first, and the coolant liquid of boiling first can generate bubble, coolant liquid boiling in heat pipe inner wall groove Small movements can be formed after rising, trifid structure forms interference to the movement at the boss surface of bionical heat pipe inner wall, then again It is easily formed new bubble.The trifid structure and the hydrophobic property based on groove, bubble edge can be moved to hydrophilic boss direction Dynamic, when bubble is expanded to a certain size, bubbles burst accelerates coolant boiling rate, in this way improves bionical heat pipe Boiling heat transfer coefficient and critical heat flux density, achieve the purpose that high-efficiency heat conduction.The air of carrying cooling liquid steam rises to bionical Heat pipe condenser section.Air cooling way is used above condensation segment, it is tiny that the cooling liquid steam of ascension liquefies under air-cooled effect Fog.Because boss surface is water-wetted surface, fog converges into flow in boss surface and flows back to evaporator section under the effect of gravity.Due to Groove surfaces are hydrophobic surface, and the liquid of condensation segment reflux will not reside in the side of groove, not interfere with condensation efficiency.Institute With the bionical fuel single battery of the utility model can achieve the purpose that efficiently controlling temperature.
Compared with prior art, the beneficial effects of the utility model are as follows：
The heat that bionical fuel cell occurs to generate when redox reaction makes electrolyte temperature increase, and temperature reaches later Heat pipe structure, the heated boiling of coolant liquid, since heat pipe can improve boiling heat transfer coefficient and critical heat flux density, reaches in heat pipe The purpose of high-efficiency heat conduction.In condensation segment, it is dirty that groove structure surface hydrophobicity material can be such that condensed liquid has the tendency that.So This novel bionic fuel cell design can achieve the purpose that temp auto-controlled, have high heat exchanger effectiveness.
Description of the drawings
Fig. 1 is the structural schematic diagram of the bionical fuel cell of the utility model；
Fig. 2 is the vertical view of the bionical fuel cell of the utility model；
Fig. 3 is the schematic diagram of the bionical fuel cell of the utility model；
Fig. 4 is the structural schematic diagram of the bionical heat pipe of the bionical fuel cell of the utility model；
Fig. 5 is the cross-sectional view of the bionical heat pipe of the bionical fuel cell of the utility model；
Fig. 6 is the inner surface portion enlarged drawing of the bionical heat pipe of the bionical fuel cell of the utility model；
Fig. 7 is the interior structure enlarged front view of the bionical heat pipe of the bionical fuel cell of the utility model；
Fig. 8 is the interior structure enlarged plan view of the bionical heat pipe of the bionical fuel cell of the utility model；
In figure：Shell 1；Bolt 2；Electrolyte outlet 3；Stock 4；Bionical heat pipe 5；Sheet aluminium anodes 6；Sheet like air cathode 7；Air cooling equipment 8；Electrolyte 9；Hydrophilic boss 10；Hydrophobic groove 11.
Specific implementation mode
The utility model is further elaborated as follows in conjunction with attached drawing：
The utility model as shown in Figure 1 is a kind of bionical fuel cell with automatic control temperature function, including shell 1, electrolysis Liquid outlet 3, sheet aluminium anodes 6, the air cathode 7 of laminated structure and bionical heat pipe 5.Electrolyte 9, piece are full of in the shell 1 Shape aluminium anodes 6 is put by 1 upper center of shell in electrolyte 9, and sheet like air cathode 7 is respectively placed in symmetrical two of the shell Side, each air cathode 7 are fixed on the side of shell 1 by three stocks and auxiliary screw respectively.Four bionical heat pipes 5 by 1 top of shell is put into electrolyte 9, is not contacted with aluminium anodes 6 and air cathode 7.Electrolyte outlet 3 is located under 1 left side of shell Side is exported discarded electrolyte by hydraulic pump, new electrolyte is by shell top and aluminium with enclosure interior electrolyte unicom It is imported at the gap of anode.The electrolyte is 6molKOH.
Wherein, the inner wall inner wall of the bionical heat pipe 5 is by horizontally-parallel hydrophilic boss and parallel longitudinal hydrophilic boss It staggeredly forms, forms hydrophobic groove between hydrophilic boss, the distance between described hydrophilic boss of transverse direction is 7 millimeters, the longitudinal direction The distance between hydrophilic boss is 7 millimeters, and the hydrophobic depth of groove of formation is 7 millimeters.
Further, 6 thickness of sheet aluminium anodes is 3 centimetres, the thickness of the air cathode 7 of the laminated structure It is 2 millimeters.
Further, the air cathode 7 of the laminated structure is fixed on the inner wall two of shell 1 by stock 4 and bolt 2 Side is coated with glass cement, plays sealing function between the air cathode 7 and shell 1 of laminated structure.
Further, the material of the bionical heat pipe 5 is organic glass, is process through 3D printing technique, i.e., by institute Bionical heat pipe structure output is stated to be printed by 3D printer after 3D models.
Further, 5 top half of bionical heat pipe is condensation segment, and lower half portion is boiling section, is filled in condensation segment Full air, boiling section are equipped with coolant liquid, are additionally provided with air cooling equipment above condensation segment, bionical heat pipe 5 condenses when being put into shell 1 Section is upward.It is expected that battery temperature is not higher than 40 degree in the present embodiment, selection dichloromethane is coolant liquid.
Further, the shape of the hydrophilic boss 10 is trifid structure, i.e., is divided into trident, intermediate high both ends from root It is low, and by root upwards with 30 degree of angle of inclination.
Further, hydrophilic film TiO is coated on the hydrophilic boss2The hydrophilic film thickness of-PDMS, coating is 0.5 millimeter, the hydrophilic film is prepared by sol-gel method.By 30 milliliters of absolute ethyl alcohols and 0.2 milliliter of deionization Water, which is placed on magnetic stirring apparatus, is heated with stirring to 50 degrees Celsius.It measures 1 milliliter of butyl titanate solution and is added drop-wise to above-mentioned miscible fluid In, 0.2 milliliter of 1molL is added after 1 hour in prehydrolysis-1Hydrochloric acid solution, control substance amount ratio be Ti (O-Bu)4：H2O： HCl：C2H5OH=1；10:0.2:60,5 milliliters of contents are added in stirring PDMS after 1 hour (uses absolute ethyl alcohol 1:1 dissolving).Continue Stirring, obtains the TiO of water white transparency2- PDMS complex sols, after being aged 24 hours, 10 times of dilution makes it have coated on boss Water-wet behavior.
Further, super-hydrophobic epoxy resin composite coating is sprayed on the hydrophobic groove；The thickness of coating is 0.5 milli Rice.10 milligrams of epoxy resin is weighed to be dissolved in 10 milliliters of ethyl acetate.3 milliliters of NMP of addition in the solution, 5 milligrams FEP, PVDF and Ti O2, and ultrasound make its evenly dispersed within 20 minutes, after ultrasound be added 0.2 milliliter of PDMS, in magnetic force It is stirred 1 hour or so on blender, 0.3 milliliter of epoxy curing agent is added, after 15 minutes or so, even application is in bionical warm Inside pipe wall groove waits coatings to be put into baking oven after natural drying, cures 30 minutes under 100 degrees Celsius, then Celsius 210 The lower reaction of degree 90 minutes drops to and the groove structure with superhydrophobic characteristic has just been made after room temperature.
Further, to keep heat dissipation uniform, the quantity of the bionical heat pipe 5 is 4.

Claims (9)

1. a kind of bionical fuel cell with automatic control temperature function, which is characterized in that including shell (1), electrolyte outlet (3), Sheet aluminium anodes (6), sheet like air cathode (7) and bionical heat pipe (5)；Electrolyte (9), flaky aluminum are full of in the shell (1) Anode (6) is put by shell (1) upper center in electrolyte (9), and it is symmetrical that sheet like air cathode (7) is placed in the shell (1) Inner wall both sides, bionical heat pipe (5) is by being put into electrolyte (9) above shell (1), no with aluminium anodes (6) and air cathode (7) Contact；Electrolyte outlet (3) is located at below shell (1), with enclosure interior electrolyte unicom, the electrolysis that will be discarded by hydraulic pump Liquid exports；
Wherein, the inner wall of the bionical heat pipe (5) is by horizontally-parallel hydrophilic boss (10) and parallel longitudinal hydrophilic boss (10) it staggeredly forms, hydrophobic groove is formed between hydrophilic boss (10).
2. a kind of bionical fuel cell with automatic control temperature function as described in claim 1, which is characterized in that the transverse direction is flat The distance between capable hydrophilic boss (10) is 7 millimeters, and the distance between described parallel longitudinal hydrophilic boss (10) is 7 millis Hydrophobic groove (11) depth of rice, formation is 7 millimeters.
3. a kind of bionical fuel cell with automatic control temperature function as described in claim 1, which is characterized in that the sheet Aluminium anodes (6) thickness is 3-4 centimetres, and the thickness of the sheet like air cathode (7) is 1-3 millimeters.
4. a kind of bionical fuel cell with automatic control temperature function as described in claim 1, which is characterized in that the sheet Air cathode (7) is fixed on the inner wall both sides of shell (1), sheet like air cathode (7) and shell by stock (4) and bolt (2) (1) glass cement is coated between.
5. a kind of bionical fuel cell with automatic control temperature function as described in claim 1, which is characterized in that described is bionical The material of heat pipe (5) is organic glass, is process through 3D printing technique, i.e., is 3D models by the bionical heat pipe structure output It is printed afterwards by 3D printer.
6. a kind of bionical fuel cell with automatic control temperature function as described in claim 1, which is characterized in that described is bionical Heat pipe (5) is divided into two parts using shell (1) upper surface as interface, by bionical heat pipe, and top half is condensation segment, lower half portion For boiling section, condensation segment is interior to be full of air, and boiling section is equipped with coolant liquid, air cooling equipment (8) is additionally provided with above condensation segment.
7. a kind of bionical fuel cell with automatic control temperature function as described in claim 1, which is characterized in that described hydrophilic convex The shape of platform (10) is trifid structure, i.e., is divided into trident from root, and intermediate high both ends are low, and by root upwards with 30 degree Angle of inclination.
8. a kind of bionical fuel cell with automatic control temperature function as described in claim 1, which is characterized in that described is hydrophilic Hydrophilic film TiO is coated on boss (10)2The hydrophilic film thickness range of-PDMS, coating are 0.3-0.5 millimeters, described Hydrophilic film is prepared by sol-gel method.
9. a kind of bionical fuel cell with automatic control temperature function as described in claim 1, which is characterized in that described is hydrophobic Super-hydrophobic epoxy resin composite coating is sprayed on groove (11)；The thickness range of coating is 0.3-0.5 millimeters.
CN201820351309.9U 2018-03-15 2018-03-15 A kind of bionical fuel cell with automatic control temperature function Expired - Fee Related CN207967176U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820351309.9U CN207967176U (en) 2018-03-15 2018-03-15 A kind of bionical fuel cell with automatic control temperature function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820351309.9U CN207967176U (en) 2018-03-15 2018-03-15 A kind of bionical fuel cell with automatic control temperature function

Publications (1)

Publication Number Publication Date
CN207967176U true CN207967176U (en) 2018-10-12

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