CN106943977B - Reaction kettle and production process of metal-air battery electrode thereof - Google Patents
Reaction kettle and production process of metal-air battery electrode thereof Download PDFInfo
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- CN106943977B CN106943977B CN201710265953.4A CN201710265953A CN106943977B CN 106943977 B CN106943977 B CN 106943977B CN 201710265953 A CN201710265953 A CN 201710265953A CN 106943977 B CN106943977 B CN 106943977B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1868—Stationary reactors having moving elements inside resulting in a loop-type movement
- B01J19/1875—Stationary reactors having moving elements inside resulting in a loop-type movement internally, i.e. the mixture circulating inside the vessel such that the upwards stream is separated physically from the downwards stream(s)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
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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
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
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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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
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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
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a reaction kettle and a production process of a metal-air battery electrode thereof, wherein the reaction kettle comprises: the device comprises a driving device, a kettle body, a stirring shaft and a stirring paddle; the driving device drives the stirring shaft to rotate; the stirring shaft penetrates through the top end of the kettle body and extends into the effective stirring space of the kettle body; the part of the stirring shaft positioned in the effective stirring space is provided with the stirring paddle; the effective stirring space is a diffusion-shaped cavity with a narrow upper part and a wide lower part, and the longitudinal section of the bottom of the effective stirring space is W-shaped. The inner wall of the effective stirring space of the reaction kettle body can enable the edge of the vortex to collapse inwards, reduce the diameter of the vortex, effectively inhibit the formation of large vortex and facilitate the uniform mixing of mixed fluid. Meanwhile, the longitudinal section of the inner wall of the reaction kettle is specially designed in a W shape, so that ideal mixing of complete mixed flow can be formed by a motor with smaller power, and control of chemical reaction and material crystallinity is facilitated.
Description
Technical Field
The invention relates to the field of new energy, in particular to a reaction kettle and a production process of a metal-air battery electrode thereof.
Background
In the fields of fine chemical engineering, battery materials and the like, a reaction kettle is a core device. The reaction kettle in the new energy field mainly has two functions: the stirring function is realized, and various materials are uniformly mixed; provides a chemical reaction site and synthesizes new chemical substances. In chemical reactions, momentum transfer, heat transfer, mass transfer are the primary considerations of a reaction vessel. The design and the use of the reaction kettle directly influence the key performance factors such as the granularity, the appearance, the components and the like of the new energy material.
The existing reaction kettle has the following defects: because a huge vortex is formed during stirring, materials enter the reaction kettle and then are layered along with the vortex, the concentration and the temperature of the materials in the upper layer, the middle layer and the lower layer of the kettle body are far different, the materials are difficult to be uniformly mixed, and the material mixing efficiency is low; the motion speeds of the materials in the fluid are consistent, the stirring fluid tends to be mixed in a non-ideal way, and is biased to plug flow and is difficult to mix; because the concentration difference between the inside of the material in the reaction kettle and the outlet of the reaction kettle is large, the crystallinity of the material prepared by the solid-liquid reaction is difficult to control; and the existing reaction kettle is a non-ideal mixing system, the modeling of internal fluid is complex and not representative, and the size enlargement and production scale enlargement under the same production condition are difficult.
Therefore, the prior art has yet to be improved.
Disclosure of Invention
The invention mainly aims to provide a reaction kettle, and aims to solve the problems that huge vortexes are easily formed in the stirring process of the existing reaction kettle, the mixing efficiency is poor, and the fluid concentration and temperature difference in different areas in a kettle body is large.
The invention provides a reaction kettle, which comprises: the device comprises a driving device, a kettle body, a stirring shaft and a stirring paddle; the driving device drives the stirring shaft to rotate; the stirring shaft penetrates through the top end of the kettle body and extends into the effective stirring space of the kettle body; the part of the stirring shaft positioned in the effective stirring space is provided with the stirring paddle; the effective stirring space is a diffusion-shaped cavity with a narrow upper part and a wide lower part, and the longitudinal section of the bottom of the effective stirring space is W-shaped.
Preferably, the effective stirring space is enclosed by the inner wall of the circular truncated cone type kettle body.
Preferably, the effective stirring space is enclosed by a trapezoidal baffle arranged on the inner wall of the cylindrical kettle body.
Preferably, a plurality of through holes are arranged on the trapezoidal baffle.
Preferably, the included angle θ between the V-shaped portions on both sides of the vertical section of the "W" shape at the bottom of the effective stirring space is in the range of: theta is more than 15 degrees and less than 75 degrees.
Preferably, the included angle θ ranges from: theta is more than 20 degrees and less than 30 degrees.
Preferably, the outside of the cauldron body has hollow intermediate layer, hollow intermediate layer is enclosed by cauldron internal wall and outer wall, the material of cauldron internal wall and outer wall is stainless steel or enamel.
Preferably, the paddle combination type of the stirring paddle comprises: one or more combinations of a hinge type, a push type, a frame type, an anchor type, a screw belt type, an auger type, a millstone type, a flat-open blade type, a split blade type, a straight blade turbine type, an inclined blade turbine type, a planetary type, a new HV type, a sickle bend type, a three-dimensional staggered flat blade type, a fence type, a Schneider disc type, a conical wheel type and a perforated radial plate type.
The invention also provides a production process of the metal-air battery electrode, which is prepared by using the reaction kettle and comprises the following steps:
controlling the stirring paddle to stir at a specified rotating speed at a specified temperature; wherein the reaction solution comprises a metal ion solution and a corresponding precipitant solution; the stirring paddle is provided with a porous conductive material;
supplementing the reaction liquid into the kettle body according to a specified feeding speed, and stopping supplementing the reaction liquid when the supplemented reaction liquid reaches a specified amount;
and after stirring for a specified time, stopping stirring, and taking down the porous conductive material on the stirring paddle to obtain the metal-air battery electrode.
Preferably, the specified temperature ranges from 40 ℃ to 80 ℃; the range of the specified rotating speed is 500-1200 r/min; the specified time range of stirring is 1-2 h.
The invention has the beneficial effects that: the inner wall of the effective stirring space of the reaction kettle body can collapse the edge of the vortex inwards, the diameter of the vortex is reduced, the formation of large vortex can be effectively inhibited, the uniform mixing of mixed fluid is facilitated, the ideal mixing of full mixed flow can be formed in the reaction kettle by a motor with smaller power, the concentration and the temperature in the kettle body tend to be consistent, and the chemical reaction and the material crystallinity are favorably controlled. Meanwhile, the linear velocity of the tip of the lower layer stirring paddle of the stirring paddle is fastest, and the linear velocity is smaller as the tip approaches the center of the stirring shaft, so that the stress of the material is smaller and smaller, the space below the stirring shaft forms a stirring dead angle, and the material is retained in the stirring dead angle; the edge of the bottom of the kettle is lifted upwards, so that the materials flow back to the lower part of the paddle under the dual action of gravity and paddle shearing force to participate in complete mixing to form ideal mixing. When the metal-air battery electrode is prepared in the reaction kettle, materials in the reaction kettle collide in the fully mixed flow, so that the uniform crystallization of the metal compound is favorably controlled, the metal compound directly grows on the porous conductive material in a crystallization manner, the bonding is tight, no additional binder is needed, and the contact resistance of the metal compound and the conductive porous material is reduced. Meanwhile, compared with the traditional preparation process of the metal air electrode, the process for preparing the metal air electrode by using the reaction kettle saves working hours and improves the production efficiency of the pole piece.
Drawings
FIG. 1 is a schematic diagram showing a longitudinal sectional structure of a reaction vessel according to an embodiment of the present invention;
FIG. 2 is a schematic view of a longitudinal cross-sectional structure of a reaction vessel according to another embodiment of the present invention;
fig. 3 is a schematic flow chart of a process for producing an electrode of a metal-air battery according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a reaction kettle according to an embodiment of the present invention includes: the device comprises a driving device 1, a kettle body 9, a stirring shaft 8 and a stirring paddle 7;
the driving device 1 drives the stirring shaft 8 to rotate; the stirring shaft 8 penetrates through the top end of the kettle body 9 and extends into the effective stirring space of the kettle body 9; the stirring paddle 7 is arranged on the part of the stirring shaft 8 positioned in the effective stirring space;
the effective stirring space is a diffusion cavity with a narrow top and a wide bottom, and the bottom of the effective stirring space is in a W shape in longitudinal section.
The effective stirring space of the kettle body 9 in the embodiment of the invention is a diffusion-shaped cavity with a narrow top and a wide bottom, so that the edge of a vortex can collapse inwards, the diameter of the vortex is reduced, the formation of a large vortex can be effectively inhibited, the uniform mixing of mixed fluid is facilitated, the ideal mixing of full mixed flow can be formed in the reaction kettle by using the driving device 1 with smaller power, the concentration and the temperature in the kettle body 9 tend to be consistent, and the chemical reaction and the material crystallinity in the reaction kettle are favorably controlled. In the embodiment of the present invention, the driving device 1 is a motor, and the effective stirring space is an area where a vortex is easily formed by the rotation of the blade. Meanwhile, as the linear velocity of the tip of the lower paddle of the stirring paddle 7 of the reaction kettle is fastest, and the linear velocity is smaller as the blade approaches the center of the stirring shaft 8, the stress of the material is smaller and smaller, so that the space below the stirring shaft 8 forms a stirring dead angle, the material is retained in the space, the bottom of the effective stirring space of the reaction kettle is specially designed in a W shape, and the center of the bottom of the kettle is designed into a small cone, so that the occurrence of the stirring dead angle can be avoided; the edge of the bottom of the kettle is lifted upwards, so that the materials flow back to the lower part of the paddle under the dual action of gravity and paddle shearing force to participate in complete mixing to form ideal mixing. The feed inlet 2 of the reaction kettle is positioned at the upper part of the reaction kettle, and the discharge outlet 5 of the reaction kettle is positioned at the lower part of the reaction kettle, so that the fully mixed fluid is formed.
Fully mixed flow is one of the ideal flows. It is characterized by that in the course of continuous flow, it can obtain complete mixing in both axial direction and radial direction, so that the material system parameters are uniform. A fully mixed flow is the one with the greatest degree of back mixing. The basic assumption of this model is that the concentration of the material in the apparatus is uniform and equal to the concentration at the outlet of the apparatus. The model equation is: v (dc/dt) ═ V (c)0-c) c and c0The concentration of the tracer in the equipment and at the inlet is respectively, t is time, V is the volume flow of the material, and V is the working volume of the equipment. If the model equation is used in a continuous flow device, c represents the concentration of the components participating in the process, and corresponding terms, such as reaction terms, mass transfer terms, etc., should be added to the model equation according to the nature of the process.
Further, the effective stirring space is surrounded by the inner wall of the circular truncated cone type kettle body 9.
As shown in fig. 1, in the embodiment of the present invention, the reaction kettle body 9 is a vertical round table, and a longitudinal section thereof is an isosceles trapezoid; the bottom longitudinal section of the effective stirring space is W-shaped, the middle is high, and the two sides are low. The circular truncated cone-shaped reaction kettle has no baffle but has an inclined and smooth kettle inner wall curve, the kinetic energy loss of the stirring device is small, the energy is saved, and the ideal mixing of the full mixed flow can be formed in the reaction kettle by a motor with smaller power.
Further, the effective stirring space is enclosed by a trapezoidal baffle 3 arranged on the inner wall of the cylindrical kettle body.
Furthermore, the trapezoidal baffle 3 is provided with a plurality of through holes 4.
As shown in FIG. 2, in another embodiment of the present invention, the reaction vessel body 9 is a vertical cylinder, and its longitudinal section is rectangular; the inner wall of the kettle body 9 is provided with a trapezoidal baffle 3, the upper part is wide, the lower part is narrow, and the effective stirring space in the kettle body 9 is a diffusion-shaped cavity with the narrow upper part and the wide lower part; the trapezoidal baffle 3 is provided with a through hole 4; the bottom longitudinal section of the effective stirring space is W-shaped, the middle is high, and the two sides are low. The trapezoidal baffle 3 is inserted into the vortex, so that the vortex can be broken to form dispersed liquid drops, and collision and uniform mixing among materials are promoted. Be equipped with through-hole 4 on trapezoidal baffle 3 to reduce the impact force of fluid to trapezoidal baffle 3, restrain the material and be detained. The through holes 4 are distributed on the trapezoidal baffle in a sequentially reduced state from top to bottom, and a fully mixed fluid state is more favorably formed.
Further, the range of the angle θ between the V portions on both sides of the bottom "W" shaped cross section of the effective stirring space is: theta is more than 15 degrees and less than 75 degrees.
Further, the range of the angle θ is: theta is more than 20 degrees and less than 30 degrees.
The bottom longitudinal section of the effective stirring space of the reaction kettle is in a unique W-shaped design, and because the linear velocity of the blade tip of the lower paddle of the stirring paddle 7 is the fastest, the linear velocity is smaller and smaller as the blade tip is closer to the center of the stirring shaft 8, the stress of the material is smaller and smaller, the space below the stirring shaft 8 forms a stirring dead angle, and the material is retained in the space. The center of the kettle bottom is designed into a small cone, so that the stirring dead angle can be avoided; the edge of the bottom of the kettle is lifted upwards, so that the materials flow back to the lower part of the paddle under the dual action of gravity and paddle shearing force to participate in complete mixing to form ideal mixing. The range of the included angle theta of the V parts at the two sides of the W-shaped longitudinal section at the bottom of the effective stirring space directly influences the backflow mixing of the stirring fluid in the stirring process and influences the degree of complete mixing flow.
Further, there is hollow intermediate layer 6 outside above-mentioned cauldron body 9, hollow intermediate layer 6 is enclosed by cauldron body 9 inner wall and outer wall, the material of cauldron body 9 inner wall and outer wall is 304 stainless steel or enamel. The hollow interlayer 6 can be designed into a heating layer, a heat preservation layer and a cooling layer as required to meet the production requirements of different conditions. The heating wire is designed in the hollow interlayer 6 to realize the heating effect; a circulating condensing medium is designed in the hollow interlayer 6, so that the cooling can be realized; the internal design circulation constant temperature medium flow of hollow intermediate layer 6 can realize keeping warm. The enamel is a non-metallic material, is made of natural mineral substances such as quartz, feldspar and fluorite, is nontoxic, tasteless, firm and durable, and has the advantages of acid resistance, alkali resistance, corrosion resistance, no leakage, good sealing performance and the like. The stainless steel has the advantages of good material quality, high strength, high temperature resistance, corrosion resistance and difficult rusting. The 304 stainless steel contains nickel, and the main functions are acid resistance and corrosion resistance. In the embodiment of the invention, the hollow interlayer 6 is made of 304 stainless steel or enamel, can resist corrosion and high temperature, and can prolong the service life of the reaction kettle while meeting the use requirement.
Further, the paddle 7 has a paddle combination type including: one or more combinations of a hinge type, a push type, a frame type, an anchor type, a screw belt type, an auger type, a millstone type, a flat-open blade type, a split blade type, a straight blade turbine type, an inclined blade turbine type, a planetary type, a new HV type, a sickle bend type, a three-dimensional staggered flat blade type, a fence type, a Schneider disc type, a conical wheel type and a perforated radial plate type. In the embodiment of the invention, the flap type blade is selected and matched with the optimal range of the included angle theta of the V parts at two sides of the W-shaped section at the bottom of the effective stirring space, so that the formed fully-mixed flow state is optimal.
The reaction kettle device capable of eliminating vortexes, provided by the embodiment of the invention, can solve the problems that the existing vertical reaction kettle is low in mixing efficiency, and the concentration and temperature difference of materials in the kettle and at a discharge port is large; easy to form plug flow mixing, difficult to enlarge production scale and other technical problems.
The embodiment of the invention also provides a production process of the metal-air battery electrode, which is prepared by using the reaction kettle and comprises the following steps:
s1: controlling the stirring paddle to stir at a specified rotating speed at a specified temperature; wherein, the reaction solution comprises a metal ion solution and a corresponding precipitator solution; the stirring paddle is provided with a porous conductive material;
s2: supplementing the reaction liquid into the kettle body according to a specified feeding speed, and stopping supplementing the reaction liquid when the supplemented reaction liquid reaches a specified amount;
s3: and stopping stirring after the specified time of stirring, and taking down the porous conductive material on the stirring paddle to obtain the metal-air battery electrode.
Further, the range of the specified temperature is 40-80 ℃; the range of the specified rotating speed is 500-; the stirring time is 1-2 h.
Further, the porous conductive material includes: one of a metal foam, a metal mesh, and a porous carbon material.
The specific preparation process of the metal-air battery pole piece in the embodiment of the invention is as follows: preparing metal ion solutions such as sulfate, hydrochloride and nitrate and corresponding precipitant solutions such as alkali and carbonate for later use; enclosing porous conductive materials such as foam metal, metal mesh, porous carbon materials and the like around the stirring paddle for one circle, wherein foam nickel is preferably selected in the embodiment of the invention; starting the constant temperature function of the reaction kettle, and controlling the temperature to be at a certain constant temperature of 40-80 ℃, wherein 60 ℃ is preferred in the embodiment of the invention; starting a stirring function, and simultaneously metering and adding the metal ion solution and the precipitant solution by using a pump, wherein the stirring speed is 500-1200r/min in the embodiment of the invention; and precipitating and crystallizing the metal compound on the porous conductive material through liquid-phase coprecipitation to obtain the metal-air battery pole piece. Compared with the metal-air battery pole piece prepared by the traditional process, the internal resistance of the metal-air battery in the embodiment of the invention can be reduced by 10-20%.
The existing metal-air battery pole piece preparation process is complex and comprises the following steps: producing metal compound powder, pulping the powder, coating the powder and drying the pole piece. And the pulping process needs to add a binder to ensure the binding power of the slurry after coating and drying. The added binder causes the resistance of the metal compound and the conductive material to become high. In the embodiment of the invention, the metal-air battery electrode is prepared by one-step molding by using the reaction kettle with the unique design, and the pole piece slurry is subjected to coprecipitation crystallization in a fully mixed flow state and is formed into the pole piece on the porous conductive material.
The embodiment of the invention has the following beneficial effects: in the embodiment of the invention, when the metal air electrode is prepared in the reaction kettle, the materials in the reaction kettle collide in the fully mixed flow, so that the uniform crystallization of the metal compound is favorably controlled, and the metal compound directly grows on the porous conductive material in a crystallization manner. The auxiliary material of the metal-air battery pole piece prepared in the embodiment of the invention has high uniformity, is compact without using a binder, reduces the contact resistance of a metal compound and a conductive porous material, and reduces the internal resistance of the metal-air battery pole piece. Meanwhile, compared with the traditional preparation process of the metal air electrode, the process for preparing the metal air electrode by using the reaction kettle provided by the embodiment of the invention saves the binder material, saves the coating process and reduces the production cost; the working hours are saved, and the production efficiency of the pole piece is improved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A production process of a metal-air battery electrode is characterized in that the metal-air battery electrode is prepared by utilizing a reaction kettle, and the reaction kettle comprises the following components: the device comprises a driving device, a kettle body, a stirring shaft and a stirring paddle;
the driving device drives the stirring shaft to rotate; the stirring shaft penetrates through the top end of the kettle body and extends into the effective stirring space of the kettle body; the part of the stirring shaft positioned in the effective stirring space is provided with the stirring paddle;
the effective stirring space is a diffusion-shaped cavity with a narrow upper part and a wide lower part, and the longitudinal section of the bottom of the effective stirring space is W-shaped;
the range of the included angle theta of the V parts at two sides of the W-shaped longitudinal section at the bottom of the effective stirring space is as follows: theta is more than 15 degrees and less than 75 degrees;
the feed inlet of the reaction kettle is positioned at the upper part of the reaction kettle, and the discharge outlet of the reaction kettle is positioned at the lower part of the reaction kettle;
the effective stirring space is enclosed by a trapezoidal baffle arranged on the inner wall of the cylindrical kettle body; a plurality of through holes are formed in the trapezoidal baffle; the through holes are distributed on the trapezoidal baffle in a state of being sequentially reduced from top to bottom;
the production process of the metal-air battery electrode comprises the following steps:
controlling the stirring paddle to stir the reaction liquid at a specified temperature according to a specified rotating speed; wherein the reaction solution comprises a metal ion solution and a corresponding precipitant solution; the stirring paddle is provided with a porous conductive material;
supplementing the reaction liquid into the kettle body according to a specified feeding speed, and stopping supplementing the reaction liquid when the supplemented reaction liquid reaches a specified amount;
and after stirring for a specified time, stopping stirring, and taking down the porous conductive material on the stirring paddle to obtain the metal-air battery electrode.
2. The process for producing a metal-air battery electrode according to claim 1, wherein the included angle θ is in the range of: theta is more than 20 degrees and less than 30 degrees.
3. The process for producing a metal-air battery electrode according to claim 1, wherein a hollow interlayer is arranged outside the kettle body, the hollow interlayer is formed by enclosing an inner wall and an outer wall of the kettle body, and the inner wall and the outer wall of the kettle body are made of stainless steel or enamel.
4. The process for producing a metal-air battery electrode according to claim 1, wherein the paddle blade pattern of the paddle blade comprises: one or more combinations of a hinge type, a push type, a frame type, an anchor type, a screw belt type, an auger type, a millstone type, a straight blade turbine type, a helical blade turbine type, a planetary type, a sickle bend type, a three-dimensional staggered flat blade type, a fence type, a Schneider disc type, a conical wheel type and a perforated radial plate type.
5. The process for producing a metal-air battery electrode according to claim 1, wherein the specified temperature is in the range of 40 ℃ to 80 ℃; the range of the specified rotating speed is 500-1200 r/min; the specified time range of stirring is 1-2 h.
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CN102698697A (en) * | 2012-06-25 | 2012-10-03 | 江门市长优实业有限公司 | Reaction kettle device for preparing and coating spherical nickel hydroxide |
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CN104607079A (en) * | 2015-01-30 | 2015-05-13 | 山西普泰发泡铝制造有限公司 | Tackifying and foaming stirring device for preparing foamed aluminum |
CN204448012U (en) * | 2015-02-28 | 2015-07-08 | 辽宁石化职业技术学院 | Reactor |
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CN102605386A (en) * | 2012-02-29 | 2012-07-25 | 华侨大学 | Method for preparing Ni/NiCo2O4 porous composite electrode for alkaline medium oxygen evolution |
CN105413601A (en) * | 2014-09-11 | 2016-03-23 | 无锡杨市表面处理科技有限公司 | High rate reaction kettle |
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CN102698697A (en) * | 2012-06-25 | 2012-10-03 | 江门市长优实业有限公司 | Reaction kettle device for preparing and coating spherical nickel hydroxide |
CN203990427U (en) * | 2014-08-22 | 2014-12-10 | 东营中康新型材料有限公司 | The mixed newborn device of a kind of nafoxidine raw material |
CN104607079A (en) * | 2015-01-30 | 2015-05-13 | 山西普泰发泡铝制造有限公司 | Tackifying and foaming stirring device for preparing foamed aluminum |
CN204448012U (en) * | 2015-02-28 | 2015-07-08 | 辽宁石化职业技术学院 | Reactor |
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