CN208368622U - A kind of air cell electrode structure - Google Patents
A kind of air cell electrode structure Download PDFInfo
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- CN208368622U CN208368622U CN201821115217.7U CN201821115217U CN208368622U CN 208368622 U CN208368622 U CN 208368622U CN 201821115217 U CN201821115217 U CN 201821115217U CN 208368622 U CN208368622 U CN 208368622U
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Abstract
The utility model discloses a kind of air cell electrode structure, which can be divided into three layers of superposition and be superimposed with five layers according to purposes difference.Three layers of superposition are that the bonding rolling of catalysis reaction film two sides is precipitated together in two metal layers with oxygen respectively, then is pressed into the air electrode piece of specific thickness with certain pressure with Flat pressure machine；Five layers of superposition are then catalytic membrane+silver-coated nickel foam net+oxygen reduction activity film+nickel plated foam nickel screen tactic pattern rolling to be precipitated by silver-coated nickel foam net oxygenation together, then the air electrode piece of specific thickness is pressed into the Flat pressure machine under certain pressure.The advantage performance that the electrode slice has high intensity, long-life, small resistance, high efficiency to conduct.It solves the problems such as air electrode production molding is difficult, intensity is low, resistance is big, afflux electrical efficiency is low in the prior art, overcomes the defect that air electricity piece is unstable, easily-deformable, easily permeable, working life is short.
Description
Technical field
The present invention relates to metal air fuel cell anode air electrode technical fields, have more particularly to one kind high-strength
Degree, low internal resistance, high conductivity air cell electrode structure.
Background technique
Metal air fuel cell is that a kind of high-energy, high efficiency, density is big, secure and non-combustible burns, do not explode, nontoxic nothing
Evil, material source is extensive, the light-weight green energy resource that can be recycled, always domestic and international chemical energy source research for a long time
One of emphasis.
Air electrode is the critical component in metal air fuel cell, and air electrode can allow oxygen molecule to pass through catalyst
Intensify activity, through gas phase, electrolyte conduct hydroxide ion to anode zinc, aluminium, magnesium, lithium alloy surface generate chemical energy it is anti-
Answer, be it is a kind of can not only breathe freely, but also can with waterproof, and can collect electronics, charge, conduction electric current, voltage component.
The priming reaction performance for how improving air electrode is catalyzed the analysis oxygen condition of reaction.Guarantee air electrode piece simultaneously
It is indeformable in alkaline electrolyte, not loose, and Current Voltage can be conducted with less resistive, collecting electron charge is that difficult point aggravates
Point project.Good air electrode piece must assure that good gas permeability in alkaline electrolysis substance, to reach hydrogen oxide point
The two demand with hydrogen reduction is parsed, while high temperature resistant and corrosion must impregnate and will not occur loose, loose generation for a long time
Phenomena such as leak, leakage.Can also conduct completely simultaneously electronics that hydroxide ion generates the metals such as alloy metallic zinc, aluminium, magnesium,
Charge is collected completely, reaches best transmission effect with minimum resistance derived current, voltage, makes air-liquid, electric three-phase equilibrium work.
Currently, the production method of traditional metal air fuel cell air electrode be catalysis reaction film+conduction currect collecting net+
The structure of waterproof layer (as shown in Figure 3) forms.Catalytic specie be by the adhesive substances such as polytetrafluoroethylene (PTFE), polyethylene glycol with urge
Agent mixing roll-in forms.Because it is by electrolytic corrosion, gradient of temperature convergent-divergent, after a period of operation with transporting repeatedly
It is dynamic and cause structure to change and it is loose finally working performance is caused to be deteriorated, leakage to work terminates, and leads to service life not long efficiency
Lowly.
Traditional air-electrode catalyst layer is to be made by conductive carbon black+catalytic specie+pore creating material+polytetrafluoroethylene (PTFE) through roller
At adhesive properties are which results in the spies that made air electrode has very big internal resistance for high hydrophobicity and insulating properties
Sign, due to the presence of this feature, electronics, the charge Assimilation and conductivity generated after the air electrode absorbing reaction made is difficult, and because
There is the big resistance reason of this high insulation that it is made to reach the degradation on currect collecting net to die down, because resistance effect charge causes in it
Consumption is converted into the heating of water and increases power consumption, reduces the transformation efficiency of battery.
Meanwhile traditional manufacture craft can not be electric by air with big pressure because catalytic membrane is made of waterproof material substance
Pole is cured as plate or piece, generate not can guarantee film surface impurity it is covered the problems such as.
Summary of the invention
The present invention provides a kind of air cell electrode structures.It solves in metal air fuel cell in the prior art
Balance of the air electrode to air-liquid, electric phase reaction.The problems such as small resistance, high conduction, high intensity, long-life are cracked.And it mentions
It has supplied a kind of completely new structure to be formed, has solved the waterproofness, gas permeability, excellent mouldability, convenience of air electrode very well
It is difficult to the problem of meeting simultaneously.Low resistance, high conduction, few in-fighting, high intensity, high efficiency are reached while having had many advantages, such as, together
When it is with good stability, can satisfy oxygen be precipitated two kinds of demands of hydrogen reduction air electrode piece.
The present invention provides following schemes:
A kind of air cell electrode structure, comprising:
Catalytic reaction layer and the second foam metal layer is precipitated in first foam metal layer, oxygen；First foam metal layer
And respectively surface is provided with inert metal layer to second foam metal layer；The inertia that first foam metal layer includes
The outside of metal layer is provided with the first metallic silver layer；
Catalytic reaction layer is precipitated for first foam metal layer, oxygen and the second foam metal layer is from top to bottom successively set
It sets, and integral type laminated structure is formed using pressing process under a certain pressure.
Further: first foam metal layer and second foam metal layer respectively include the first foam metal
Main body and the second foam metal main body；The inert metal layer is metal nickel layer.
It is further: the material of the first foam metal main body and the second foam metal main body be nickel foam,
Any one in foam copper, foamed aluminium.
Further: the material of the first foam metal main body and the second foam metal main body is foam
Nickel, first metallic silver layer are set to the first foam metal body exterior using silver plating process.
Further: the material of the first foam metal main body and the second foam metal main body is foam copper
Or foamed aluminium, the metal nickel layer are set to the first foam metal main body and the second foam metal master using nickel plating technology
Outside body；The outside of the metal nickel layer of the second foam metal main body is provided with the second metallic silver layer using silver plating process.
It is further: to further include being set in turn in the oxygen to be precipitated between catalytic reaction layer and second foam metal layer
Third foam metal layer and oxygen reduction activity conversion zone；There is metal nickel layer outside the third foam metal layer；It is described
The outside of the metal nickel layer of third foam metal layer is provided with third metallic silver layer using silver plating process；
First foam metal layer, oxygen be precipitated catalytic reaction layer, third foam metal layer, oxygen reduction activity conversion zone with
And second foam metal layer from top to bottom set gradually, and under a certain pressure using pressing process formed integral type sheet knot
Structure.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
By the invention it is possible to realize a kind of air cell electrode structure, in an implementation mode, which can be with
Catalytic reaction layer and the second foam metal layer is precipitated including the first foam metal layer, oxygen；First foam metal layer and
Respectively surface is provided with inert metal layer to second foam metal layer；The inert metal that first foam metal layer includes
The outside of layer is provided with the first metallic silver layer；Catalytic reaction layer and the second foam gold is precipitated in first foam metal layer, oxygen
Belong to layer from top to bottom to set gradually, and integral type laminated structure is formed using pressing process under a certain pressure.The electrode is main
Metal layer and two parts of conversion zone can be divided into.Wherein oxygen be precipitated catalytic reaction layer mainly by carbon nanomaterial appendix metal salt from
Son is mixed with oxygen reduction activity agent and polytetrafluoroethylene powder or lotion, conductive carbon black.Metal layer is steeped using inert metal
The silver-plated form of foam nickel is made.Later, according to purposes difference, three layers of superposition can be divided into and be superimposed with five layers.Three layers of superposition are
The bonding rolling of catalysis reaction film two sides is precipitated together in two metal layers with oxygen respectively, then with Flat pressure machine with certain pressure pressure
The air electrode piece of specific thickness is made.Five layers of superposition are then that catalytic membrane+silver-coated nickel foam is precipitated by silver-coated nickel foam net oxygenation
The rolling of net+oxygen reduction activity film+nickel plated foam nickel screen tactic pattern together, then with the Flat pressure machine pressure under certain pressure
The air electrode piece of specific thickness is made.After pressing, air electrode piece can be made into through drying, sintering.The technique is made
Electrode slice have high intensity, the long-life, small resistance, high efficiency conduction advantage performance.Solves air electrode in the prior art
The problem difficult, intensity is low, resistance is big, afflux electrical efficiency is low is formed in production, change air electricity piece it is unstable, it is easily-deformable,
The defect easily permeable, working life is short.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of first structure diagram of air cell electrode structure provided in an embodiment of the present invention；
Fig. 2 is a kind of the second structural schematic diagram of air cell electrode structure provided in an embodiment of the present invention；
Fig. 3 is electrode structure schematic diagram in the prior art.
In figure: catalytic reaction layer 2, third foam metal layer 3, oxygen reduction activity is precipitated in first foam metal layer 1, oxygen
Conversion zone 4, the second foam metal layer 5, conventional catalyst conversion zone 6, traditional afflux metal layer 7, conventional waterproof layer 8.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
Embodiment
It is a kind of air cell electrode structure provided in an embodiment of the present invention, as shown in Figure 1, the knot referring to Fig. 1, Fig. 2
Structure includes the first foam metal layer 1, oxygen precipitation catalytic reaction layer 2 and the second foam metal layer 5；First foam metal layer
1 and the respective surface of second foam metal layer 5 be provided with inert metal layer；First foam metal layer 1 includes
The outside of inert metal layer is provided with the first metallic silver layer；Foam metal provided by the embodiments of the present application refers to containing foam stomata
Special metal material.By its unique design feature, foam metal possesses that density is small, heat-proof quality is good, sound insulation value is good
And can a series of good advantages such as electromagnetic wave absorption, be that a kind of new material for gradually growing up with mankind's science and technology is normal
For a series of industrial developments such as aerospace, petrochemical industry.The foam metal is for electrode in use, can either guarantee gas
The precipitation of body, and there is certain intensity can protect oxygen precipitation catalytic reaction layer and be not destroyed.
Catalytic reaction layer 2 and the second foam metal layer 5 is precipitated from top to bottom successively in first foam metal layer 1, oxygen
Setting, and integral type laminated structure is formed using pressing process under a certain pressure.In practical applications, catalysis reaction is precipitated in oxygen
Pore creating material polyethylene glycol, adhesive polytetrafluoroethylene powder is added by metal ions such as carbon nanomaterial appendix manganese, nickel, iron, silver in layer
Agent (lotion) mixing rolls.
Further, first foam metal layer 1 and second foam metal layer 5 respectively include the first foam gold
Owner's body and the second foam metal main body；The inert metal layer is metal nickel layer.The first foam metal main body and
The material of the second foam metal main body is nickel foam, foam copper, any one in foamed aluminium.It in practical applications can be with
Suitable foam metal material is selected according to the specific application occasions, and above-mentioned three kinds of materials provided by the embodiments of the present application all have respectively
From distinctive performance.Foam metal refers to the special metal material containing foam stomata.Pass through its unique design feature, foam
Metal possess that density is small, heat-proof quality is good, sound insulation value is good and can a series of good advantages such as electromagnetic wave absorption, be with
A kind of new material that mankind's science and technology gradually grows up is usually used in a series of industrial developments such as aerospace, petrochemical industry.
The electric conductivity and ductility of foam copper are good, and preparation cost is lower than nickel foam, and electric conductivity is more preferable, can be used for preparing battery
Cathode (carrier) material, catalyst carrier and electromagnetic shielding material.Especially foam copper is used for the basis material that battery makees electrode,
With some clear advantages, but since the corrosion resistance of copper is good not as good as nickel to also limit its some applications.Bubble
Foam aluminium and its alloy are light, have sound-absorbing, heat-insulated, vibration damping, absorb the characteristics such as impact energy and electromagnetic wave, are suitable for guided missile, flight
The surge protection layer of device and its recovery part, automobile buffer, electric mechanical vibration absorber, pulse power electro-magnetic wave shield
Deng.
To reach, small internal resistance, conductive capability is strong, sufficiently exports metal alloy compositions zinc, aluminium, magnesium, lithium reacts the electricity generated
Stream, the first foam metal layer and the second foam metal layer can be plated using the alkaline-resisting foam nickel screen of inertia is silver-plated with foam copper mesh
Silver-plated technique, the product can directly contact caustic corrosion electrolyte to nickel again, guarantee the demand being used for a long time.
The material of the first foam metal main body and the second foam metal main body is nickel foam, and described first
Metallic silver layer is set to the first foam metal body exterior using silver plating process.The first foam metal main body and institute
The material for stating the second foam metal main body is foam copper or foamed aluminium, and the metal nickel layer is set to first using nickel plating technology
Foam metal main body and the second foam metal body exterior；The outside of the metal nickel layer of the second foam metal main body
Second metallic silver layer is provided with using silver plating process.
In order to realize charge function, as shown in Fig. 2, the embodiment of the present application can also provide further include be set in turn in it is described
Third foam metal layer 3 and oxygen reduction activity between oxygen precipitation catalytic reaction layer 2 and second foam metal layer 5 react
Layer 4；There is metal nickel layer outside the third foam metal layer 3；It adopts the outside of the metal nickel layer of the third foam metal layer 3
Silver plating process is provided with third metallic silver layer；Third foam metal layer can by foam copper nickel plating again silver-plated mode produce and
At, can reach absorption and discharge oxygen dual function.Oxygen reduction activity conversion zone by carbon nanomaterial appendix nickel, strontium, lanthanum,
The metal ions such as cobalt, lithium composition.Reactant after ammonium oxalate is complexed, dry, the manufactured 400 mesh powder of sintering, is added poly- second
Glycol pore creating material rolls film forming after polytetrafluoroethylene (PTFE) binder as oxygen reduction activity conversion zone.
Catalytic reaction layer 2, third foam metal layer 3, oxygen reduction activity reaction is precipitated in first foam metal layer 1, oxygen
Layer 4 and the second foam metal layer 5 are from top to bottom set gradually, and form integral type piece using pressing process under a certain pressure
Shape structure.
In practical applications, nickel foam inertia net in specification can be put into 1% dilution heat of sulfuric acid and cleans 10
Minute, it is cleaned up, is placed into the copper-bath prepared by 5mo l/L concentration immersion plating 3 hours with deionized water after taking-up,
Taking-up is cleaned up with deionized water, is placed into 0.1mo l/L and is carried out immersion silver 15 minutes, and obtained material is steeped as third
Foam metal layer.
The structure is a kind of energy low resistance collection electron charge in air-liquid, electric three-phase working interface, and catalysis can be isolated
Reaction impurities heap, and guarantee that fixed solidification catalytic reaction layer conducts Current Voltage with low resistance, and ventilative, waterproof is prevented and become
Shape, leak, the air electrode of long-lived operation are exactly the key points and difficulties in metal air fuel cell practical application, are also influenced
This excellent battery technology is converted into the Developing Extension of the practical application of industrialized production.The structure has in high-intensitive, low
The advantages that resistance, high conductivity, while having the function of long-life, the efficient characteristic of oxygen precipitation and reduction.Solves puzzlement
The molding of metal fuel metal fuel battery air electrode is difficult, internal resistance is big, the service life is short, easily-deformable in reaction process, failure, leak,
The defect of stopped reaction.
The structure has the first foam metal layer 1 and the second foam metal layer 5 of inert metal layer using surface, is placed in
The two sides of catalytic reaction layer 2 are precipitated in oxygen, have both successfully realized and have pressed the molding convenience of easy processing, and this two metal layers with deflector roll
Common cooperation support the intensity of air electrode, overcome air electrode and shape difficult, low efficiency, can not quantity-produced
Defect reduces the labor intensity of roll-in so that air electrode be made to improve processing efficiency.Bubble is attached to using a small amount of silver ion
On foam nickel screen, further improve the efficiency that catalytic activity and oxygen are precipitated, silver coating with a thickness of 7-10 μm.
The electrode can be divided mainly into metal layer and two parts of conversion zone.Wherein oxygen is precipitated catalytic reaction layer and is mainly received by carbon
Rice medium carrying ionizable metal salt and oxygen reduction activity agent and polytetrafluoroethylene powder or lotion, conductive carbon black mix.Gold
Belong to layer to be made using the silver-plated form of inert metal nickel foam.Later, according to purposes difference, three layers of superposition and five can be divided into
Layer superposition.Three layers of superposition are that the bonding rolling of catalysis reaction film two sides is precipitated together in two metal layers with oxygen respectively, then uses plate
Press machine is pressed into the air electrode piece of specific thickness with certain pressure.Five layers of superposition are precipitated by silver-coated nickel foam net oxygenation
The rolling of catalytic membrane+silver-coated nickel foam net+oxygen reduction activity film+nickel plated foam nickel screen tactic pattern together, then with a level pressure
Flat pressure machine under power is pressed into the air electrode piece of specific thickness.After pressing, air electrode can be made into through drying, sintering
Piece.The advantage performance that the electrode slice that the technique is made has high intensity, long-life, small resistance, high efficiency to conduct.It solves existing
There is the problem that molding is difficult, intensity is low, resistance is big, afflux electrical efficiency is low in air electrode production in technology, changes air electricity
Unstable, easily-deformable, easily permeable, working life the is short defect of piece.
The preparation method of the air cell electrode structure may include urging the first foam metal layer 1, oxygen precipitation
Change conversion zone 2 and the second foam metal layer 5 use rolling process to carry out first time compacting after from top to bottom setting gradually；Having
When gymnastics is made, the first foam metal layer 1, oxygen can be precipitated by catalytic reaction layer 2 and the second foam metal layer 5 using roll squeezer
It is rolled over being formed together 1-2mm thin slice, when roll-in should allow the edge between each layer to come into full contact with, and conductive materials is allowed to contact
It is closer, resistance is smaller.
It carries out suppressing for second under 30~50 tons of pressure after the completion of suppressing for the first time, the time of second of compacting
It is 3~6 minutes；When specific operation, it can be used and suppressed 3-6 minutes under 30~50 tons of pressure on Flat pressure machine, pressure
Production can guarantee the consistent compactness of uniformity.
It is dry in 260~350 DEG C of sections after vacuum drying to burn after being dried in vacuo at 80 DEG C after the completion of second of compacting
Knot 60~120 minutes, both the air cell electrode structure.
Wherein, the preparation method that catalytic reaction layer 2 is precipitated in oxygen includes: to take each raw material by following parts by weight:
10~20 parts of active carbon nanomaterial, 10~15 parts, 20~40 parts manganese of lithium, 5~9 parts of lanthanums, 10~20 parts of iron, 3~5
Ammonium oxalate progress complex reaction of the total weight than 12~12% is added in the mixing of part silver after ultrasonic agitation 2.0~3.0 hours；
It reacts 11~13 hours, moves in vacuum oven at 95~106 DEG C in 75~85 DEG C of water-baths after complex reaction
Lower drying 22~26 hours；
Through 380~410 degree of high temperature sinterings after drying, barreling is at 360~450 the first powder of purpose after cooling；
The polyethylene glycol of its quality 5~8%, 20~25% polytetroxide ethylene, 5 are sequentially added into first powder
It is mixed after~10% conductive carbon black, the carbon Nano sol liquid of the powder quality 2~3% is added after mixing, through super
Sound stirring is dried in 75~85 DEG C of water-baths to dough, is rolled into the thin slice of 1~1.5 millimeters thick up to the oxygen and catalysis is precipitated
Conversion zone.
Further, the first foam metal layer 1, oxygen precipitation catalytic reaction layer 2, third foam metal layer 3, hydrogen reduction is living
Property conversion zone 4 and the second foam metal layer 5 from top to bottom set gradually after using rolling process carry out first time compacting.Production
Into the electrode with five-layer structure.
Wherein, the preparation method of oxygen reduction activity conversion zone 4 includes: to take each raw material by following parts by weight:
20~25 parts of carbon nanomaterial, 300 parts of deionized water, 10~15 parts of lanthanum, 30~50 parts of cobalt, 3~5 parts of strontium, lithium 20
~30 parts, 1~20 part of ammonium oxalate mixing sufficiently dissolution, in 70~100 DEG C of water-baths after dissolved raw material is stirred by ultrasonic 6 hours
Middle drying is agglomerating；
By the pockets of raw material of the drying through 390~420 DEG C high temperature sintering 3.5~4.5 hours, be cooled to room temperature and be ground into
~400 the second powder of purpose；
The polyethylene glycol of its quality 5~10%, 20~30% polytetrafluoroethylene (PTFE) are sequentially added into second powder
Afterwards, 3~6 times of the second powder weight of the carbon Nano sol liquid ultrasonic agitation is added, after mixing evenly in 95~105 DEG C of water-baths
In be dried to dough after, be rolled into the thin slice of 1~1.5 millimeters thick up to the oxygen reduction activity conversion zone.
Ammonium oxalate makes the salts metallics such as carbon nanopowder material carbon based manganese dioxide as pore creating material, complexing agent, has both been network
Reactive material is closed, and permeation functions can be reached as pore creating material, usage amount is 10-15 parts.
The material that catalytic reaction layer is precipitated in oxygen provided by the present application includes carbon Nanomaterial manganese dioxide Mn, La L i Fe
Ag carbon nano-solution glue constitutes carbon supported catalyst.It is mixed that its ratio be 20-25:10-15:20-40:5-9:10-20:60-100 ratios
3 times of weight ratios of deionized water are being added, the ammonium oxalate that 15 parts of addition in 2.5-5 hours is stirred in ultrasonic state carries out complex reaction
Drying and sintering afterwards is ground into 300-400 mesh fine powder and polytetrafluoroethylene (PTFE), polyethylene glycol, and carbon Nano sol presses 30-20:20-30:
5-10:300 is mixed, and dough is dried in 80 DEG C of water-bath, and roll squeezer is rolled into 1-1.5mm film and urges as oxygen precipitation
Change conversion zone and it is stand-by.
Provided by the present application to pass through hydrogen reduction agent by carbon nanomaterial: So, Fe, La, Sr, ammonium oxalate, carbon Nano sol are pressed
25-30:15-20:15-20:5-10:15-20:10-15:300 is stirred 2.5-5 hours through ultrasonic disperse and is complexed through ammonium oxalate, is passed through
Drying with water bath, 400 high temperature sinterings 4 hours are ground to 400 mesh as hydrogen reduction agent, through with conductive carbon black, polytetrafluoroethylene (PTFE), poly-
The water-bath through 80-100 DEG C of water-bath is stirred by ultrasonic by 30-40:7-10:25-30:5-10:200 parts in ethylene glycol, carbon Nano sol
In be dried to dough, roll squeezer is rolled into 1-1.5mm film.
Catalytic reaction layer 2 and the second foam metal are precipitated by the first foam metal layer 1, oxygen in structure provided by the present application
In the production process, when roll-in, should allow edge to come into full contact with to the electrode slices that layer 5 is constituted, allow conductive materials contact it is closer,
Resistance is smaller, selects the pressure of 30-50T to make according to the requirement of its thickness 1mm in a press, guarantees that uniformity is unanimously close
Property.
Catalyst, pore creating material polyethylene glycol, electrical-conductive nanometer carbon dust or carbon pipe, polytetrafluoroethylsolution solution 60% is precipitated in oxygen to divide
Sub- content, 8% content of carbon Nano sol be mixed into ultrasonic agitation by 20-25:3-5:7-10:25-30:200 and be sheared
It in 80 DEG C of water-baths, when shampoo part is evaporated to dough, is rolled repeatedly on roller machine to 1-1.5mm thick film within 30-60 minutes
It is stand-by that catalytic reaction layer is precipitated as oxygen.
By oxygen reduction activity reactant, pore creating material polyethylene glycol, electrical-conductive nanometer carbon dust or carbon pipe, polytetrafluoroethylsolution solution
60% molecule content, 8% content of carbon Nano sol are carried out being mixed into ultrasonic agitation by 20-25:3-5:7-10:25-30:200
When evaporating moisture content to dough in 80 DEG C of water-baths within middle shearing 30-60 minutes, rolled repeatedly on roller machine to 1-1.5mm thickness
Film, as oxygen reduction activity conversion zone are stand-by.
First foam metal layer 1+ oxygen provided by the present application is precipitated to the side of the second foam metal layer of catalytic reaction layer 2+ 5
Catalytic reaction layer 2+ third foam metal layer 3+ oxygen reduction activity conversion zone 4+ is precipitated in formula and the first foam metal layer 1+ oxygen
The mode of second foam metal layer 5 is superimposed combination, and the thickness gap 1.5:1.2:0.9 is selected rolled in roll squeezer to tight by several times
Closely connected conjunction is moved to pressure maintaining 3-6 minute compression compacting of 30-50T pressure difference in 30-50T press machine, taking-up be dried in vacuo in
70-80 DEG C of Temperature Vacuum drying is placed into high temperature furnace and is sintered 2-3 hours with 350-400 DEG C of temperature for 3-6 hours, room temperature to be down to
It takes out the electrode slice for obtaining that there is three-decker discharging function may be implemented and there is five-layer structure can realize charge and discharge function
The electrode slice of energy uses.
Air electrode provided by the present application and the electrode comparison check check table provided in the prior art
First foam metal layer 1+ oxygen provided by the present application be precipitated the second foam metal layer of catalytic reaction layer 2+ 5 mode and
Catalytic reaction layer 2+ third foam metal layer 3+ oxygen reduction activity conversion zone 4+ second is precipitated in the first foam metal layer 1+ oxygen
Air electrode piece made by 5 structure of foam metal layer possesses preferable machine-building qualification rate, and can improve tensile strength,
Cost is reduced for the service life of air electrode, ensures that battery steady operation has laid solid foundation, changes metal fuel electricity
The pond service life can not continuous work major defect, the first foam metal layer be both used as air electrode piece fastening net use, above it is more
Hole nickel foam structure, and the Channel Group channel restored is precipitated as oxygen, large area, table extensional again will be anti-with anodic bonding metal plate
The electron charge answered all is collected with small internal resistance, high conductivity and all exports electric current.Thoroughly overcome the prior art
In middle air electrode structure, because hydrophobing agent, bonding agent resistance are big, limited defect is conducted, air-fuel battery is allowed really to realize
The small resistance of air electrode, high conductivity, tension, indeformable, completely ventilative, waterproof, conduction, three-phase stable equilibrium's long-time work
The requirement of work.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (6)
1. a kind of air cell electrode structure characterized by comprising
Catalytic reaction layer and the second foam metal layer is precipitated in first foam metal layer, oxygen；First foam metal layer and
Respectively surface is provided with inert metal layer to second foam metal layer；The inert metal that first foam metal layer includes
The outside of layer is provided with the first metallic silver layer；
Catalytic reaction layer is precipitated for first foam metal layer, oxygen and the second foam metal layer is from top to bottom set gradually, and
Integral type laminated structure is formed using pressing process under a certain pressure.
2. air cell electrode structure according to claim 1, which is characterized in that first foam metal layer and
Second foam metal layer respectively includes the first foam metal main body and the second foam metal main body；The inert metal layer
For metal nickel layer.
3. air cell electrode structure according to claim 2, which is characterized in that the first foam metal main body with
And the material of the second foam metal main body is nickel foam, foam copper, any one in foamed aluminium.
4. air cell electrode structure according to claim 3, which is characterized in that the first foam metal main body with
And the material of the second foam metal main body is nickel foam, first metallic silver layer is set to described using silver plating process
First foam metal body exterior.
5. air cell electrode structure according to claim 3, which is characterized in that the first foam metal main body with
And the material of the second foam metal main body is foam copper or foamed aluminium, the metal nickel layer is set to using nickel plating technology
First foam metal main body and the second foam metal body exterior；The metal nickel layer of the second foam metal main body
Outside is provided with the second metallic silver layer using silver plating process.
6. air cell electrode structure according to claim 1, which is characterized in that further include being set in turn in the oxygen
The third foam metal layer between catalytic reaction layer and second foam metal layer and oxygen reduction activity conversion zone is precipitated；Institute
Stating has metal nickel layer outside third foam metal layer；The external of the metal nickel layer of the third foam metal layer uses silver-plated work
Skill is provided with third metallic silver layer；
Catalytic reaction layer, third foam metal layer, oxygen reduction activity conversion zone and the is precipitated in first foam metal layer, oxygen
Two foam metal layers are from top to bottom set gradually, and form integral type laminated structure using pressing process under a certain pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115217.7U CN208368622U (en) | 2018-07-15 | 2018-07-15 | A kind of air cell electrode structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963271A (en) * | 2018-07-15 | 2018-12-07 | 四川康成博特机械制造有限公司 | A kind of air cell electrode structure and preparation method thereof |
| CN109786762A (en) * | 2019-01-17 | 2019-05-21 | 北京化工大学 | Structure of gradient hydrophilic-hydrophobic/air electrode and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963271A (en) * | 2018-07-15 | 2018-12-07 | 四川康成博特机械制造有限公司 | A kind of air cell electrode structure and preparation method thereof |
| CN109786762A (en) * | 2019-01-17 | 2019-05-21 | 北京化工大学 | Structure of gradient hydrophilic-hydrophobic/air electrode and preparation method thereof |
| CN109786762B (en) * | 2019-01-17 | 2021-01-19 | 北京化工大学 | Structure of gradient hydrophilic-hydrophobic/air electrode and preparation method thereof |
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