CN110429309A - Based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation method - Google Patents
Based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation method Download PDFInfo
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- CN110429309A CN110429309A CN201910740611.2A CN201910740611A CN110429309A CN 110429309 A CN110429309 A CN 110429309A CN 201910740611 A CN201910740611 A CN 201910740611A CN 110429309 A CN110429309 A CN 110429309A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
- H01M4/8882—Heat treatment, e.g. drying, baking
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M4/90—Selection of catalytic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
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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
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Abstract
The invention discloses a kind of based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation method；It is characterized by: this method comprises the following steps: one, prepared by cathode: step A, algae slurry preparation: chlorella pyrenoidosa algae powder being dissolved in ethanol solution, is sufficiently stirred on magnetic stirring apparatus, and paste algae slurry is made；Step B, foam iron-nickel load algae slurry: the foam iron-nickel cut is completely immersed in manufactured paste algae slurry, is full of inside sonic oscillation to foam iron-nickel by algae slurry in ultrasonic oscillator, is filled with the foam iron-nickel of algae slurry after dry using hot press hot pressing；Step C, cathode carbonization, step D, cathode surface hydrophobic treatment；Two, the preparation of anode: using deposition dipping method repeatedly in graphite rod surface layer palladium plating Catalytic Layer；Three, anode activation: anode is immersed in sulfuric acid solution, is activated by cyclic voltammetry；Four, battery assembly；The present invention can be widely used in the fields such as the energy, chemical industry, environmental protection.
Description
Technical field
The present invention relates to fuel cell preparation fields, and in particular to based on monoblock type carbonaceous from breathing cathode without film formic acid
Fuel cell preparation method.
Background technique
Direct methanoic acid fuel cell is directly to turn fuel formic acid and the chemical energy of oxidant oxygen by electrochemical reaction
Change the power generator of electric energy into.Battery is mainly made of four parts, i.e. anode, cathode, electrolyte and external circuit.Fuel and oxygen
Gas reacts in the anode and cathode of fuel cell respectively.Oxidation reaction occurs on anode and generates electronics and proton for fuel,
Then electronics is transmitted to cathode through external circuit.The proton generated simultaneously passes through electrolyte to cathode, matter under electric field action
Son, electronics and oxygen react in cathode side and generate water, so far constitute circuit.Due to the internal resistance of electrochemical reaction and battery
In the presence of fuel cell can also generate certain heat.
Direct methanoic acid fuel cell has many advantages.On the one hand, it is fired with methanol fuel cell and other proton exchange membrane
Material battery is compared, and fuel used in direct methanoic acid fuel cell is nontoxic, nonflammable, storage is convenient, and electro-chemical activity, energy
Metric density and proton conductivity are higher, low to proton exchange membrane transmitance, can produce biggish output power at a lower temperature.
On the other hand, although very widely used today lithium ion battery is free of by heavy metals such as lead, the cadmiums to denounce, from technical matters
From, other than lithium ion, the heavy metals such as nickel, cobalt, manganese, and organic fluorocompound therein are still contained in its electrolyte
Serious pollution can be caused to environment.In addition, after scrapping, the misoperation in recycling, dismantling, treatment process, it is also possible to send out
The various problems such as raw explosion on fire, heavy metal pollution, organic compounds discharge.Moreover, at present to the recycling skill of lithium ion battery
Art is still incomplete, and cost recovery height is also huge limiting factor.In contrast, direct methanoic acid fuel cell liquid electrolyte
Main component is formic acid or formates and part supporting electrolyte (the predominantly acid or aqueous slkali of low concentration) in solution, with lithium from
Sub- battery is compared, and the pollution of removal process is small, at low cost, and safety coefficient is high.So in this context, formic acid fuel
The functionization of battery will make electronic industry, small household appliances market etc. become biggest beneficiary, these characteristics enable the battery at
For one of movement of new generation and the optimal selection of portable power supplies, it is expected to and lithium battery is waged a decisive campaign in Miniature Power Unit market.
Although direct methanoic acid fuel cell has many good qualities, its bottleneck further developed is restricted there are still many at present
Problem.These problems embody a concentrated reflection of: 1. electrode catalyst is easily poisoned；2. infiltration of the formic acid on Nafion membrane；3. cost
It is higher.CO is had during direct methanoic acid fuel cell anode reactionadsEqual intermediate products generate, and make in noble metal catalyst
Poison reduces the activity of catalyst, and then influences battery performance and stability.Although permeability of the formic acid on Nafion membrane is lower than
Methanol, but still some formic acid reaches cathode through exchange membrane from anode, this phenomena reduces the utilization efficiency of fuel, together
When can be aoxidized by cathode noble metal catalyst through the fuel small molecule come, generate mixed potential and parasite current, be greatly reduced
Battery performance increases cathod catalyst poisoning risk, influences the stability of electrode.And currently it is widely used in direct formic acid fuel
The cathod catalyst of battery is noble metal platinum or platinum group catalyst, accounts for about the 56% of battery cost, therefore it is also to cause directly
One of the main reason for aminic acid fuel battery cost is high, limits its being widely used in commercial field.Currently, directly
The battery structure that aminic acid fuel battery generallys use is film electrode structure, i.e., by gas diffusion layers, Catalytic Layer and proton exchange membrane
Etc. functional structures be assembled into membrane electrode by modes such as hot pressing, there is also problems, cumbersome processes to increase for such structure
The complexity of electrode structure and the waste of catalyst, furthermore should during the organic bond that must use in addition to can electrode
Outside electric conductivity, also as the problems such as falling off after long-term use in the presence of failure, further influences the stability and persistence of electrode.
These problems all seriously constrain the further realityization application of such battery.
Summary of the invention
The present invention is in view of the deficienciess of the prior art, propose based on monoblock type carbonaceous from breathing cathode without film formic acid
Fuel cell preparation method.
The technical scheme is that a kind of preparing without film aminic acid fuel battery from breathing cathode based on monoblock type carbonaceous
Method；It is characterized by: this method comprises the following steps:
One, prepared by cathode:
Step A, algae slurry preparation:
Chlorella pyrenoidosa algae powder is dissolved in ethanol solution, is sufficiently stirred on magnetic stirring apparatus, paste algae is made
Slurry.
Step B, foam iron-nickel load algae slurry:
By the foam iron-nickel cut be completely immersed in made of in paste algae slurry, sonic oscillation is extremely in ultrasonic oscillator
It is full of inside foam iron-nickel by algae slurry, is filled with the foam iron-nickel of algae slurry after dry using hot press hot pressing.
Step C, cathode carbonization:
The foam iron-nickel for having loaded algae slurry that step B is obtained, which is placed in high-temperature tubular electric furnace, carries out carbon under nitrogen atmosphere
Change；Then soaking and washing successively is carried out using dehydrated alcohol and hydrochloric acid, is cleaned repeatedly to pH value of solution using deionized water later and is in
Neutrality, then be placed in baking oven and be dried.
Step D, cathode surface hydrophobic treatment:
Carbon black is dissolved in aqueous isopropanol, thick slurry is modulated into；The carbon black slurry even application that will be modulated
On the foam iron-nickel being carbonized that step C is obtained, dries and then carries out even application again with polytetrafluoroethylsolution solution,
Completion is placed in baking oven and is dried, and completes cathode preparation.
Two, the preparation of anode:
The preparation of anode is completed in graphite rod surface layer palladium plating Catalytic Layer using deposition dipping method repeatedly.Three, anode is living
Change:
Anode prepared by step 2 is immersed in sulfuric acid solution, is activated by cyclic voltammetry.
Four, battery assembly:
Fuel manhole appendix is set on battery case, and fuel is entered in the inner cavity of battery case by the fuel manhole appendix；In electricity
Several anode mounting holes are arranged in the right side of pond box, and the activated anode that step 3 is obtained is inserted by anode mounting hole
In the inner cavity of battery case；Cathode mounting groove is respectively set in forward and backward two side of battery case, the cathode mounting groove and battery case it is interior
Installation base is arranged in the inside of cathode mounting groove in chamber perforation, the cathode of step 1 preparation is placed in cathode mounting groove, and will
Cathode is fixed on installation base, and the cathode is connect with titanium sheet, and titanium sheet is as cathode end.
The present invention has stronger selectivity to oxygen reduction reaction using carbonaceous catalyst, i.e., when it is as cathod catalyst
When, only reduction reaction occurs for catalytic oxygen, reacts without catalytic fuel small molecule.Carbonaceous material conduct is used as a result,
When cathod catalyst, it can avoid mixed potential caused by formic acid and the problems such as parasite current, avoid the poisoning problem of catalyst,
The stability of catalyst is improved, and the use of proton exchange membrane can be saved on the basis of guaranteeing battery performance, realizes battery
Without membranization.In addition, the present invention uses chlorella pyrenoidosa as catalyst precursor, in combination with foam metal skeleton, one
Step completes the synthesis of the efficient carbonaceous oxygen reduction catalyst of auto-dope and the building of sheet monoblock type air cathode, is effectively simplified
Electrode structure reduces the structural complexity of battery, reduces preparation assembling difficulty and cost.Further, since integral electrodes
The application of structure takes full advantage of the characteristic of natural carbonaceous material spontaneous reunion during high temperature pyrolysis, eliminates electrode structure
The use for building middle organic bond ensure that the electric conductivity, stability and persistence of electrode.
The present invention be prepared for it is a kind of efficiently, it is cheap, with selectivity, stable monoblock type air-breathing formula cathode, and
To plate palladium graphite rod as anode, the room temperature direct methanoic acid fuel cell with selecting catalytic performance of high output performance is obtained.
It is according to the present invention based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation method
Preferred embodiment, step C by step B obtain loaded algae slurry foam iron-nickel be placed in high-temperature tubular electric furnace under nitrogen atmosphere into
Row carbonization, method particularly includes: high-temperature tubular electric furnace is raised to 300~350 DEG C from room temperature with the rate of 2.0~2.5 DEG C/min, then
900~950 DEG C are raised to the rate of 8~10 DEG C/min, and keeps 2~3h, then natural cooling.
It is according to the present invention based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation method
Preferred embodiment, in step 4, the activated anode that step 3 is obtained is inserted into the inner cavity of battery case by anode mounting hole
In；And it is arranged copper pipe in the outer end of anode, make anode by copper pipe connecting wire, to connect external loading.
It is according to the present invention based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation method
Preferred embodiment, step 2 complete the preparation of anode in graphite rod surface layer palladium plating Catalytic Layer using deposition dipping method repeatedly；Tool
Body are as follows: by electrochemical workstation, using the graphite rod by cleaning, drying as working electrode, gauze platinum electrode is to electrode, silver/chlorine
Change silver electrode is reference electrode, is placed in the palladium chloride solution that mass fraction is 1%~2%, applies 0.0V on graphite rod
(vs.Ag/AgCl) constant potential is electroplated, and it is 3%~5% that the graphite rod after plating, which is immersed in mass fraction, later
It in Nafion solution, takes out and spontaneously dries, repeat " plating --- immersion --- is dry " process 5~6 times, complete the system of anode
It is standby.
It is of the present invention based on monoblock type carbonaceous from breathing cathode without the beneficial of film aminic acid fuel battery preparation method
Effect is:
The present invention be prepared for it is a kind of efficiently, it is cheap, with selectivity, stable monoblock type air-breathing formula cathode, and
To plate palladium graphite rod as anode, the room temperature direct methanoic acid fuel cell with selecting catalytic performance of high output performance is obtained；This hair
It is bright to significantly reduce the cost of direct methanoic acid fuel cell, the stability of battery is improved, mixed potential is effectively prevented, posts
The problem of raw electric current etc. reduces cell output, can guarantee that yin-yang the two poles of the earth are not in contact with each other, and convenient for activating to electrode, improve
Catalytic performance simultaneously optimizes battery performance；The present invention can be widely used in the fields such as the energy, chemical industry, environmental protection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram without film aminic acid fuel battery based on monoblock type carbonaceous from breathing cathode.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is 2 scheme of installation of anode.
Fig. 4 is the structural schematic diagram of battery case 1.
Fig. 5 is the polarization curve of battery.
Fig. 6 is cell power density curve.
Fig. 7 is the Yin/Yang pole polarization curve of battery.
Specific embodiment
Referring to Fig. 1 to Fig. 4, it is a kind of based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation method；
This method comprises the following steps:
One, the preparation of cathode 5:
Step A, algae slurry preparation:
Chlorella pyrenoidosa algae powder is dissolved in the ethanol solution that mass percent is 70~80%, in magnetic stirring apparatus
On 20~30min is sufficiently stirred, be made paste algae slurry.
Step B, foam iron-nickel load algae slurry:
The board-like foam iron-nickel cut is completely immersed in manufactured paste algae slurry, the ultrasound vibration in ultrasonic oscillator
Swing 30~40min, until be full of inside foam iron-nickel by algae slurry, it is dry after using hot press in 110~120 DEG C, 1.4~1.5MPa
Under the conditions of hot pressing be filled with algae slurry 15~20min of foam iron-nickel.
Step C, cathode carbonization:
The foam iron-nickel for having loaded algae slurry that step B is obtained, which is placed in high-temperature tubular electric furnace, carries out carbon under nitrogen atmosphere
Change；Method particularly includes: high-temperature tubular electric furnace is raised to 300~350 DEG C from room temperature with the rate of 2.0~2.5 DEG C/min, then with 8
The rate of~10 DEG C/min is raised to 900~950 DEG C, and keeps 2~3h, then natural cooling.
Then successively impregnate clearly for the HCl solution of 50~60% dehydrated alcohols and 2~4mol/L using mass fraction
It washes, is cleaned to pH value of solution be in neutrality repeatedly using deionized water later, then be placed in baking oven and be dried with 60~70 DEG C.
Step D, cathode surface hydrophobic treatment:
It is to be modulated into thick slurry in 70~80% aqueous isopropanols that carbon black, which is dissolved in mass fraction,；It will modulate
Carbon black slurry even application on the foam iron-nickel being carbonized that step C is obtained, it is dry and then be 5% with mass fraction
~10% polytetrafluoroethylsolution solution carries out even application again, and completion, which is placed in baking oven, to be dried, and completes cathode preparation.
Two, the preparation of anode 2:
The preparation of anode is completed in graphite rod surface layer palladium plating Catalytic Layer using deposition dipping method repeatedly；Specifically: it is logical
Electrochemical workstation is crossed, using the graphite rod by cleaning, drying as working electrode, gauze platinum electrode is to electrode, silver/silver chlorate electricity
Extremely reference electrode is placed in the palladium chloride solution that mass fraction is 1%~2%, applies 0.0V (vs.Ag/ on graphite rod
AgCl constant potential) is electroplated, and it is molten that the graphite rod after plating is immersed in the Nafion that mass fraction is 3%~5% later
It in liquid, takes out and spontaneously dries, repeat " plating --- immersion --- is dry " process 5~6 times, complete the preparation of anode.
Three, anode activation:
Anode prepared by step 2 is immersed in sulfuric acid solution, is activated by cyclic voltammetry.
Four, battery assembly:
Fuel manhole appendix 9 is set on battery case 1, and fuel is entered by the fuel manhole appendix 9 in the inner cavity 10 of battery case；
Several anode mounting holes 11 are set in the right side of battery case 1, the activated anode 2 that step 3 is obtained is pacified by anode
In the inner cavity 10 for filling hole insertion battery case 1；And it is arranged copper pipe 3 in the outer end of anode 2, so that anode 2 is passed through 3 connecting wire of copper pipe
4, to connect external loading.All anodes 2 are linked together by copper pipe 3, as anode collector.
Cathode mounting groove 6 is respectively set in forward and backward two side of battery case 1, the inner cavity 10 of the cathode mounting groove 6 and battery case
Perforation, and installation base 8 is set in the inside of cathode mounting groove, the cathode 5 of step 1 preparation is placed in cathode mounting groove 6,
Cathode seals inner cavity 10.And cathode 5 and titanium sheet 7 are fixed on installation base 8, titanium sheet 7 extends outwardly as cathode current collection
Pole, the cathode 5 are connect with titanium sheet 7, and titanium sheet 7 is used as cathode end.
Concrete principle of the invention is: with i.e. commercially available natural carbonaceous material --- chlorella pyrenoidosa algae powder on the market
It as cathod catalyst presoma, is supported on foam iron-nickel matrix and is carbonized under an inert gas, a step completes catalysis
Agent preparation and electrode building, obtain good mechanical performance, the reliable plate-like cathodes of structure.
Chlorella pyrenoidosa itself contains N, P element, is heat-treated under atmosphere of inert gases, and endogenous P element is mixed
The miscellaneous electric conductivity for effectively improving catalyst and electrode.And endogenous N element doping can get and enrich efficient nitrogen-containing functional group, mention
The high hydrogen reduction performance of catalyst and cathode.
In order to increase load capacity of the catalyst on foam metal, first algae powder is added in ethanol solution, is tuned into algae slurry, leaching
After entering foam metal, go deep into algae slurry in foam metal gap by the method for ultrasonic vibration, hot pressing.After carbonization, remove whole
The extra catalyst of formula electrode surface successively uses dehydrated alcohol, dilute hydrochloric acid, deionized water cleaning.Finally, having loaded catalysis
The foam metal outside wall surface of agent sprays the solution of certain density carbon black and tetrafluoroethene (PTFE) configuration, changes electrode outer surface
Hydrophobe characteristic, prevents solution from leaking, and finally obtains the monoblock type air-breathing carbonaceous cathodes of function admirable.
Monoblock type carbonaceous air-breathing cathode proposed by the present invention with foam metal skeleton is using rich reserves, honest and clean
The natural carbonaceous material that valence is easy to get --- chlorella pyrenoidosa is catalyst precursor, avoids noble metal platinum or platinum based catalyst
Use, avoid catalyst poisoning problem, significantly reduce the cost of direct methanoic acid fuel cell, improve the steady of battery
It is qualitative.Simultaneously as the carbonaceous material of preparation has selecting catalytic performance to oxygen reduction reaction, effectively prevents mixed potential, posts
The problem of raw electric current etc. reduces cell output.In addition, carbonaceous material makes based on the yin selecting catalytic performance of hydrogen reduction
The problems such as DFFC of pole eliminates expensive proton exchange membrane, not only avoids fuel infiltration of the film using exchange membrane when, and
The cost of DFFC can be allowed to further decrease.Algae powder characteristic of spontaneous reunion in carbonisation makes the battery can be with a step simultaneously
It realizes electrode building and catalyst preparation, and avoids the use of organic bond, further increase electric conductivity, the stabilization of electrode
Property and persistence.The plating palladium graphite rod that the present invention uses makees anode, the reserved anode receptacle of cooperation 3D printing battery compartment, Ke Yiyou
Effect ground fixed anode, guarantees that yin-yang the two poles of the earth are not in contact with each other, and convenient for activating to electrode, improves catalytic performance and optimizes cell performance
Energy.
It is logical from fuel manhole appendix 9 using 0.75mol/L HCOONa+4mol/L KOH mixed solution as fuel when test
Enter in the inner cavity 10 of battery case 1；Electrochemical workstation is used to characterize with chronoamperometry to battery performance.When scanning, electricity
Chem workstation is reduced to 0V from open-circuit condition with the step size controlling cell voltage of 0.1V, and records battery discharge current.
It is the polarization curve for the battery being prepared referring to Fig. 5 to Fig. 7, Fig. 5, battery limit electric current as can be seen from Figure 5
It can reach 95mA or so, function admirable；Fig. 6 is the power density curve for the battery being prepared, from fig. 6, it can be seen that battery
Maximum power is maximum power 18.7mW present in 53mA electric current, and battery performance is preferable；Fig. 7 is the electricity being prepared
The Yin/Yang pole polarization curve in pond, from figure 7 it can be seen that polarization curve is more gentle, potential shift degree is small, and degree of polarization is small.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (4)
1. it is a kind of based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation method；It is characterized by: the party
Method includes the following steps:
One, prepared by cathode:
Step A, algae slurry preparation:
Chlorella pyrenoidosa algae powder is dissolved in ethanol solution, is sufficiently stirred on magnetic stirring apparatus, paste algae slurry is made；
Step B, foam iron-nickel load algae slurry:
By the foam iron-nickel cut be completely immersed in made of in paste algae slurry, sonic oscillation is to foam in ultrasonic oscillator
It is full of inside iron nickel by algae slurry, is filled with the foam iron-nickel of algae slurry after dry using hot press hot pressing；
Step C, cathode carbonization:
The foam iron-nickel for having loaded algae slurry that step B is obtained, which is placed in high-temperature tubular electric furnace under nitrogen atmosphere, to be carbonized；So
Soaking and washing successively is carried out using dehydrated alcohol and dilute hydrochloric acid afterwards, is cleaned repeatedly using deionized water to pH value of solution later and is in
Property, then be placed in baking oven and be dried；
Step D, cathode surface hydrophobic treatment:
Carbon black is dissolved in aqueous isopropanol, thick slurry is modulated into；By the carbon black slurry even application modulated in step
It on the foam iron-nickel being carbonized that rapid C is obtained, dries and then carries out even application again with polytetrafluoroethylsolution solution, complete
It is placed in baking oven and is dried, complete cathode preparation；
Two, the preparation of anode:
The preparation of anode is completed in graphite rod surface layer palladium plating Catalytic Layer using deposition dipping method repeatedly；
Three, anode activation:
Anode prepared by step 2 is immersed in sulfuric acid solution, is activated by cyclic voltammetry；
Four, battery assembly:
Fuel manhole appendix (9) are set on battery case (1), fuel enters the inner cavity of battery case by the fuel manhole appendix (9)
(10) in；In the right side of battery case (1), several anode mounting holes, the activated anode (2) that step 3 is obtained are set
In inner cavity (10) by anode mounting hole insertion battery case (1)；Cathode peace is respectively set in forward and backward two side of battery case (1)
The inner cavity (10) of tankage (6), the cathode mounting groove (6) and battery case penetrates through, and installation base is arranged in the inside of cathode mounting groove
(8), the cathode (5) of step 1 preparation is placed in cathode mounting groove (6), and cathode (5) is fixed on installation base (8),
The cathode (5) connect with titanium sheet (7), and titanium sheet (7) is used as cathode end.
2. it is according to claim 1 based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation method,
It is characterized by: the foam iron-nickel for having loaded algae slurry that step C obtains step B is placed in high-temperature tubular electric furnace under nitrogen atmosphere
It is carbonized, method particularly includes: high-temperature tubular electric furnace is raised to 300~350 DEG C from room temperature with the rate of 2.0~2.5 DEG C/min,
900~950 DEG C are raised to the rate of 8~10 DEG C/min again, and keeps 2~3h, then natural cooling.
3. it is according to claim 1 or 2 based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation side
Method, it is characterised in that: in step 4, the activated anode (2) that step 3 is obtained is inserted into battery by anode mounting hole
In the inner cavity (10) of box (1)；And copper pipe (3) are arranged in the outer end of anode (2), so that anode (2) is passed through copper pipe (3) connecting wire
(4), to connect external loading.
4. it is according to claim 3 based on monoblock type carbonaceous from breathing cathode without film aminic acid fuel battery preparation method,
It is characterized by: step 2 completes the preparation of anode in graphite rod surface layer palladium plating Catalytic Layer using deposition dipping method repeatedly；
Specifically: by electrochemical workstation, using the graphite rod by cleaning, drying as working electrode, gauze platinum electrode be to electrode, silver/
Silver chloride electrode is reference electrode, is placed in the palladium chloride solution that mass fraction is 1%~2%, applies 0.0V on graphite rod
(vs.Ag/AgCl) constant potential is electroplated, and it is 3%~5% that the graphite rod after plating, which is immersed in mass fraction, later
It in Nafion solution, takes out and spontaneously dries, repeat " plating --- immersion --- is dry " process 5~6 times, complete the system of anode
It is standby.
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