CN109980257A - A kind of battery and its preparation process with negative electricity extremely support - Google Patents
A kind of battery and its preparation process with negative electricity extremely support Download PDFInfo
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- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
- H01M4/8626—Porous electrodes characterised by the form
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- 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
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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
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8828—Coating with slurry or ink
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- 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
- H01M4/8885—Sintering or firing
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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
- H01M4/8885—Sintering or firing
- H01M4/8889—Cosintering or cofiring of a catalytic active layer with another type of layer
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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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting 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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
- H01M8/1226—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material characterised by the supporting layer
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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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
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Abstract
A kind of battery and its preparation process with negative electricity extremely support, belongs to battery technology field.Preparation process with the battery of negative electricity extremely support includes that electrolyte structure is integrated to the surface of negative electrode with negative electricity extremely support, and first sintering is stably connected with negative electrode and electrolyte structure；Conduit models coupling will be divided to the electrolyte structure surface for completing first sintering, uniformly distributed positive electrode, positive electrode has segmentation conduit, second of sintering after removing segmentation conduit model.This preparation process is simple, high yield rate.A kind of battery with negative electricity extremely support, multiple segmentation conduits on positive electrode can be used in discharging positive electrode internal stress, reduce the deformation that heating or cooling generate, keep the adhesive force of positive electrode and electrolyte structure bigger, contraction crack is generated along multiple segmentation conduits when guiding positive electrode to expand with heat and contract with cold simultaneously, it prevents generation crackle inside positive electrode from battery performance being caused to decline, influences the service life of battery.
Description
Technical field
This application involves battery technology fields, in particular to a kind of battery and its system with negative electricity extremely support
Standby technique.
Background technique
Battery is a kind of chemical devices for chemical energy possessed by fuel being directly changed into electric energy, and also known as electrochemistry generates electricity
Device.It is the 4th kind of generation technology after hydroelectric generation, heat energy power-generating and nuclear electric power generation.Since battery is to pass through electrification
It learns reaction and the Gibbs free energy part in the chemical energy of fuel is converted into electric energy, do not limited by Carnot cycle effect, because
This is high-efficient；In addition, battery uses fuel and oxygen as raw material；There is no mechanical transmission component simultaneously, therefore there is no noise pollution, row
The pernicious gas of releasing is few.It can be seen that battery is that most have development from energy saving and from the perspective of preserving the ecological environment
The generation technology of future.
Solid fuel cell belongs to one of fuel cell, and chemical reaction will occur at high temperature for Solid-state fuel cell to change
Can be converted into electric energy.
Since the electrode of Solid-state fuel cell and the limitation of electrolyte structure material cause the thermal expansion of electrode significantly big
In electrolyte structure, electrode is easy to fall off after expanding from electrolyte structure during prepared by high temperature sintering to lead to fuel cell
Decrease in yield.
Summary of the invention
The application provides a kind of battery and its preparation process with negative electricity extremely support, improves electrode in preparation process
In due to thermal expansion be noticeably greater than electrolyte structure and fall off from electrolyte structure so as to cause battery performance decline the problem of.
The application first aspect provides a kind of preparation process of fuel with negative electricity extremely support comprising:
With negative electricity extremely support, electrolyte structure is integrated to the surface of negative electrode, carries out first sintering；
Conduit models coupling will be divided to the electrolyte structure surface for completing first sintering, uniformly distributed positive electrode, removal point
Positive electrode has segmentation conduit after cutting conduit model, carries out second and is sintered.
It in the above-mentioned technical solutions, include negative electrode, positive electrode and electrolyte structure with the battery of negative electricity extremely support,
Electrolyte structure is integrated to the surface of negative electrode with negative electricity extremely support by the application, and first sintering makes negative electrode and electricity
The connection of matter stable structure is solved, then conduit models coupling will be divided to the electrolyte structure surface for completing first sintering, uniformly distributed sun
After electrode, conduit model is divided in removal, therefore positive electrode leaves the segmentation conduit after removal segmentation conduit model, second of sintering
It is stably connected with electrolyte structure and positive electrode.
Multiple segmentation conduits on positive electrode can be used in discharging positive electrode internal stress, reduce heating or the generation that cools down
Deformation keeps the adhesive force of positive electrode and electrolyte structure bigger, and positive electrode is avoided to fall off since deformation is larger with electrolyte structure,
Contraction crack is generated along multiple segmentation conduits when guiding positive electrode to expand with heat and contract with cold simultaneously, prevents generation crackle inside positive electrode from leading
Battery performance decline is caused, the service life of battery is influenced.The internal stress of entire battery is reduced, and makes negative electrode and electrolyte structure
Adaptability improve.
The application second aspect provides a kind of preparation process of fuel with negative electricity extremely support comprising:
With negative electricity extremely support, electrolyte structure, poroid electrolyte structure are successively integrated to the surface of negative electrode, into
Row first sintering is stably connected with negative electrode and electrolyte structure, electrolyte structure and poroid electrolyte structure；
Conduit models coupling will be divided to the surface for the poroid electrolyte structure for completing first sintering, be evenly distributed with positive electrode,
Positive electrode has segmentation conduit after removal segmentation conduit model, carries out second and is sintered.
It in the above-mentioned technical solutions, include negative electrode, positive electrode and electrolyte structure with the battery of negative electricity extremely support,
In order to enhance the binding force of positive electrode and electrolyte structure, first with negative electricity extremely support, successively by electrolyte structure, poroid electricity
Solution matter structure is integrated to the surface of negative electrode, and first sintering stablizes negative electrode, electrolyte structure and poroid electrolyte structure
Connection, then conduit models coupling will be divided to the surface for the poroid electrolyte structure for completing first sintering, uniformly after positive electrode,
Therefore removal segmentation conduit model, positive electrode leave the segmentation conduit after removal segmentation conduit model, second of sintering makes to be electrolysed
Matter structure and positive electrode are stably connected with.
Multiple segmentation conduits on positive electrode can be used in discharging positive electrode internal stress, reduce heating or the generation that cools down
Deformation keeps the adhesive force of positive electrode and electrolyte structure bigger, and positive electrode is avoided to fall off since deformation is larger with electrolyte structure,
Contraction crack is generated along multiple segmentation conduits when guiding positive electrode to expand with heat and contract with cold simultaneously, prevents generation crackle inside positive electrode from leading
Battery performance decline is caused, the service life of battery is influenced.The internal stress of entire battery is reduced, and makes negative electrode and electrolyte structure
Adaptability improve.
Poroid electrolyte structure increases the contact area with positive electrode due to its microcellular structure, to increase positive electrode
With the adhesive force of electrolyte structure, positive electrode is made not fall off easily from battery.
In some embodiments of aforementioned second aspect, negative electrode includes perovskite negative electrode.
In the present embodiment, perovskite negative electrode contains La element, and La element is rare earth element, and rare earth element has high
Chemical activity, alloy and oxide are widely used in the preparation of catalysis.
In some embodiments of aforementioned second aspect, negative electrode material is strontium lanthanum manganese oxide.
In the present embodiment, strontium lanthanum manganese oxide (La1-xSrxMnO3, LSM is abbreviated as in 0 < x < 1) and contain La element, and LSM is ABO3
Type RE perovskite object, can adsorption of oxygen, accelerate negative electrode reaction rate.
In some embodiments of aforementioned second aspect, negative electrode material is lanthanum-strontium ferro-cobalt.
In the present embodiment, lanthanum-strontium ferro-cobalt (La1-xSrxCo1-yFeyO3, 0 < x < 1, LSCF is abbreviated as in 0 < y < 1) and contain La member
Element, and LSCF is ABO3Type RE perovskite object, can adsorption of oxygen, accelerate negative electrode reaction rate.
In some embodiments of aforementioned second aspect, 1000~1300 DEG C of first sintering temperature.
In the present embodiment, negative electrode and electrolyte structure, optionally stablize with poroid electrolyte structure and connect at this temperature
It connects, and negative electrode, electrolyte structure or negative electrode, electrolyte structure, poroid electrolyte structure can be stably connected with.
In some embodiments of aforementioned second aspect, second 1000~1300 DEG C of sintering temperature.
In the present embodiment, positive electrode and electrolyte structure, optionally stablize with poroid electrolyte structure and connect at this temperature
It connects, and negative electrode, electrolyte structure, positive electrode or negative electrode, electrolyte structure, poroid electrolyte structure, positive electrode can be steady
Fixed connection.
In some embodiments of aforementioned second aspect, negative electrode includes perovskite negative electrode.
In the present embodiment, in some embodiments of aforementioned second aspect, with the preparation of the battery of negative electricity extremely support
Technique includes preparation negative electrode: preparing negative electrode using the technique of extrusion molding.
In the present embodiment, the negative electrode of hollow columnar can be made in extrusion molding.
In some embodiments of aforementioned second aspect, technique of the conduit models coupling to electrolyte structure surface will be divided
Including pasting mask.
In the present embodiment, by making electrolyte structure surface form segmentation conduit in electrolyte structure surface mount mask
Raised model, removal segmentation conduit model, leave segmentation conduit.
The application third aspect provides a kind of battery with negative electricity extremely support, according to above-mentioned with negative electricity extremely support
The preparation process of battery be prepared.
In the above-mentioned technical solutions, multiple segmentation conduits on positive electrode can be used in discharging positive electrode internal stress, subtract
It is small heating or cooling generate deformation, keep the adhesive force of positive electrode and electrolyte structure bigger, avoid positive electrode due to deformation compared with
Contraction crack is generated along multiple segmentation conduits when falling off with electrolyte structure greatly, while positive electrode being guided to expand with heat and contract with cold, and is prevented
Crackle is generated inside positive electrode causes battery performance to decline, and influences the service life of battery.The internal stress of entire battery is reduced,
Improve negative electrode and the adaptability of electrolyte structure.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of the battery with negative electricity extremely support of embodiment 8 in the application.
Appended drawing reference is summarized as follows:
101- negative electrode；102- positive electrode；103- electrolyte structure；The poroid electrolyte structure of 104-；105- divides conduit.
Specific embodiment
It, below will be in the embodiment of the present application to keep the purposes, technical schemes and advantages of the embodiment of the present application clearer
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
A kind of preparation process of battery with negative electricity extremely support is provided in the embodiment of the present application, comprising the following steps:
With negative electricity extremely support, electrolyte structure is integrated to the surface of negative electrode, carries out first sintering；
Conduit models coupling will be divided to the electrolyte structure surface for completing first sintering, uniformly distributed positive electrode, removal point
Positive electrode has segmentation conduit after cutting conduit model, carries out second and is sintered.
Optionally, first sintering temperature is 1000~1300 DEG C, and second of sintering temperature is 1000~1300 DEG C.
Negative electrode is made of perovskite, and perovskite negative electrode includes LSM, LSCF negative electrode.Perovskite negative electrode contains
La element, La element are rare earth elements, and rare earth element has high chemical activity, and alloy and oxide are widely used in urging
The preparation of change.LSM and LSCF contains La element, and LSM and LSCF are ABO3Type RE perovskite object, can adsorb oxygen
Gas accelerates negative electrode reaction rate.
Negative electrode is made using the technique of extrusion molding.The negative electrode of hollow columnar can be made in extrusion molding, be suitable for
Hollow columnar battery, there are also other methods to be suitable for flat plate cell etc..
Positive electrode includes the yttria-stabilized zirconia (Yttria-Stabilized Zirconia) containing Ni, is abbreviated as
Ni-YSZ。
The raw material of electrolyte structure is rear-earth-doped cerium oxide (chemical formula CeO2)。
Optionally, electrolyte structure with a thickness of 1~50 μm.
Electrolyte structure is made using the technique of dip-coating or electrophoretic deposition.During the technique of dip-coating or electrophoretic deposition can be made
The electrolyte structure of empty column battery.There are also other methods to be suitable for flat plate cell etc..
It include pasting mask by segmentation conduit models coupling to the technique on electrolyte structure or poroid electrolyte structure surface.
A kind of preparation process of battery with negative electricity extremely support, including following step are also provided in embodiments herein
It is rapid:
With negative electricity extremely support, electrolyte structure, poroid electrolyte structure are successively integrated to the surface of negative electrode, into
Row first sintering is stably connected with negative electrode and electrolyte structure, electrolyte structure and poroid electrolyte structure；
Conduit models coupling will be divided to the poroid electrolyte structure surface for completing first sintering, uniformly distributed positive electrode is gone
Except positive electrode has segmentation conduit after segmentation conduit model, carries out second and be sintered.
The raw material of poroid electrolyte structure is rear-earth-doped CeO2。
Optionally, poroid electrolyte structure with a thickness of 0.1~2 μm.
The preparation process of poroid electrolyte structure includes in rear-earth-doped CeO2Slurries are made after middle addition pore creating material,
It is distributed in electrolyte structure surface, wherein pore creating material solid masses and the ratio of slurry solids quality are 1:(3~10 in slurries)；
Optionally, pore creating material includes graphite.
Or, by rear-earth-doped CeO2Slurries are made, are distributed in electrolyte structure surface, wherein adhesive solid in slurries
The ratio of quality and slurry solids quality is 1:(3~10).
The embodiment of the present application also provides a kind of battery with negative electricity extremely support, according to above-mentioned with negative electricity extremely support
The preparation process of battery be prepared.
Battery with negative electricity extremely support includes between negative electrode support, positive electrode and negative electrode and positive electrode
Electrolyte structure, optionally further comprising the poroid electrolyte structure between positive electrode and electrolyte structure.
The feature of the application and performance are described in further detail with reference to embodiments.
Embodiment 1
The embodiment of the present application provides a kind of preparation process of battery with negative electricity extremely support.
1, electrolyte structure is prepared
With negative electricity extremely support, the electrolyte structure with a thickness of 30 μm is integrated to the surface of negative electrode；
2, poroid electrolyte structure is prepared
It is evenly distributed with the poroid electrolyte structure that a layer thickness is 1 μm on electrolyte structure surface, in 1200 DEG C of progress first times
Sintering；
3, uniformly distributed positive electrode
Conduit models coupling will be divided to the poroid electrolyte structure for completing first sintering using the technique for pasting mask
Surface, the uniformly distributed yttria-stabilized zirconia positive electrode containing Ni, positive electrode has segmentation conduit after conduit model is divided in removal,
It carries out being sintered for second at 1200 DEG C.
Embodiment 2
The embodiment of the present application provides a kind of preparation process of battery with negative electricity extremely support.
1, electrolyte structure is prepared
With negative electricity extremely support, the electrolyte structure with a thickness of 50 μm is integrated to the surface of negative electrode；
2, poroid electrolyte structure is prepared
It is evenly distributed with the poroid electrolyte structure that a layer thickness is 2 μm on electrolyte structure surface, in 1300 DEG C of progress first times
Sintering；
3, uniformly distributed positive electrode
Conduit models coupling will be divided to the poroid electrolyte structure for completing first sintering using the technique for pasting mask
Surface, the uniformly distributed yttria-stabilized zirconia positive electrode containing Ni, positive electrode has segmentation conduit after conduit model is divided in removal,
It carries out being sintered for second at 1300 DEG C.
Embodiment 3
The embodiment of the present application provides a kind of preparation process of battery with negative electricity extremely support.
1, electrolyte structure is prepared
With negative electricity extremely support, the electrolyte structure with a thickness of 1 μm is integrated to the surface of negative electrode；
2, poroid electrolyte structure is prepared
It is evenly distributed with the poroid electrolyte structure that a layer thickness is 0.1 μm on electrolyte structure surface, carries out first at 1000 DEG C
Secondary sintering；
3, uniformly distributed positive electrode
Using paste mask will divide conduit models coupling to completion first sintering poroid electrolyte structure surface,
The uniformly distributed yttria-stabilized zirconia positive electrode containing Ni, positive electrode has segmentation conduit after conduit model is divided in removal, 1000
It carries out being sintered for second at DEG C.
Embodiment 4
The embodiment of the present application provides a kind of preparation process of battery with negative electricity extremely support.
1, electrolyte structure is prepared
With negative electricity extremely support, the electrolyte structure with a thickness of 25 μm is integrated to the surface of negative electrode；
2, poroid electrolyte structure is prepared
It is evenly distributed with the poroid electrolyte structure that a layer thickness is 1.5 μm on electrolyte structure surface, carries out first at 1100 DEG C
Secondary sintering；
3, uniformly distributed positive electrode
Conduit models coupling will be divided to the poroid electrolyte structure for completing first sintering using the technique for pasting mask
Surface, the uniformly distributed yttria-stabilized zirconia positive electrode containing Ni, positive electrode has segmentation conduit after conduit model is divided in removal,
It carries out being sintered for second at 1200 DEG C.
Embodiment 5
The embodiment of the present application provides a kind of preparation process of battery with negative electricity extremely support.
1, electrolyte structure is prepared
With negative electricity extremely support, the electrolyte structure with a thickness of 35 μm is integrated to the surface of negative electrode；
2, poroid electrolyte structure is prepared
It is evenly distributed with the poroid electrolyte structure that a layer thickness is 0.7 μm on electrolyte structure surface, carries out first at 1050 DEG C
Secondary sintering；
3, uniformly distributed positive electrode
Conduit models coupling will be divided to the poroid electrolyte structure for completing first sintering using the technique for pasting mask
Surface, the uniformly distributed yttria-stabilized zirconia positive electrode containing Ni, positive electrode has segmentation conduit after conduit model is divided in removal,
It carries out being sintered for second at 1000 DEG C.
Embodiment 6
The embodiment of the present application provides a kind of preparation process of battery with negative electricity extremely support.
1, electrolyte structure is prepared
With negative electricity extremely support, the electrolyte structure with a thickness of 28 μm is integrated to the surface of negative electrode；
2, poroid electrolyte structure is prepared
It is evenly distributed with the poroid electrolyte structure that a layer thickness is 0.5 μm on electrolyte structure surface, carries out first at 1100 DEG C
Secondary sintering；
3, uniformly distributed positive electrode
Conduit models coupling will be divided to the poroid electrolyte structure for completing first sintering using the technique for pasting mask
Surface, the uniformly distributed yttria-stabilized zirconia positive electrode containing Ni, positive electrode has segmentation conduit after conduit model is divided in removal,
It carries out being sintered for second at 1300 DEG C.
Embodiment 7
The embodiment of the present application provides a kind of preparation process of battery with negative electricity extremely support.
1, electrolyte structure is prepared
With negative electricity extremely support, the electrolyte structure with a thickness of 45 μm is integrated to the surface of negative electrode；
2, poroid electrolyte structure is prepared
It is evenly distributed with the poroid electrolyte structure that a layer thickness is 1.2 μm on electrolyte structure surface, carries out first at 1250 DEG C
Secondary sintering；
3, uniformly distributed positive electrode
Conduit models coupling will be divided to the poroid electrolyte structure for completing first sintering using the technique for pasting mask
Surface, the uniformly distributed yttria-stabilized zirconia positive electrode containing Ni, positive electrode has segmentation conduit after conduit model is divided in removal,
It carries out being sintered for second at 1100 DEG C.
Embodiment 8
The embodiment of the present application provides a kind of battery with negative electricity extremely support, is extremely supported according to embodiment 1 with negative electricity
The preparation process of the battery of body is prepared.
As shown in Figure 1, including 101 support of negative electrode, positive electrode 102 and negative electricity with the battery of negative electricity extremely support
Electrolyte structure 103 between pole 101 and positive electrode 102, optionally further comprising between positive electrode 102 and electrolyte structure 103
Poroid electrolyte structure 104, positive electrode 102 has multiple segmentation conduits 105 for leaving after removal segmentation conduit model, is used for
Discharge the internal stress of battery.
In conclusion a kind of battery and its preparation process with negative electricity extremely support of the embodiment of the present application, positive electrode
On multiple segmentation conduits can be used in discharge positive electrode internal stress, reduce heating or cooling generate deformation, make positive electrode
It is bigger with the adhesive force of electrolyte structure, avoid positive electrode from falling off since deformation is larger with electrolyte structure, while guiding positive electricity
Contraction crack is generated along multiple segmentation conduits when pole is expanded with heat and contract with cold, and prevents generation crackle inside positive electrode from causing under battery performance
Drop, influences the service life of battery.The internal stress of entire battery is reduced, and proposes the adaptability of negative electrode and electrolyte structure
It is high.Poroid electrolyte structure increases the contact area with positive electrode due to its microcellular structure, to increase positive electrode and electrolysis
The adhesive force of matter structure makes positive electrode not fall off easily from battery.With the preparation process work of the battery of negative electricity extremely support
Skill is simple, high yield rate.
Embodiments described above is some embodiments of the present application, instead of all the embodiments.The reality of the application
The detailed description for applying example is not intended to limit claimed scope of the present application, but is merely representative of the selected implementation of the application
Example.Based on the embodiment in the application, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall in the protection scope of this application.
Claims (10)
1. a kind of preparation process of the battery with negative electricity extremely support, which is characterized in that described with negative electricity extremely support
The preparation process of battery includes:
With negative electricity extremely support, electrolyte structure is integrated to the surface of the negative electrode, carries out first sintering；
Conduit models coupling will be divided to the electrolyte structure surface for completing first sintering, uniformly distributed positive electrode, removal point
The positive electrode has segmentation conduit after cutting conduit model, carries out second and is sintered.
2. a kind of preparation process of the battery with negative electricity extremely support, which is characterized in that described with negative electricity extremely support
The preparation process of battery includes:
With negative electricity extremely support, electrolyte structure, poroid electrolyte structure are successively integrated to the surface of the negative electrode, into
Row first sintering；
Conduit models coupling will be divided to the surface for the poroid electrolyte structure for completing first sintering, be evenly distributed with positive electrode,
The positive electrode has segmentation conduit after removal segmentation conduit model, carries out second and is sintered.
3. the preparation process of the battery according to claim 1 or 2 with negative electricity extremely support, which is characterized in that described
Negative electrode includes perovskite negative electrode.
4. the preparation process of the battery according to claim 3 with negative electricity extremely support, which is characterized in that the negative electricity
Pole material is strontium lanthanum manganese oxide.
5. the preparation process of the battery according to claim 3 with negative electricity extremely support, which is characterized in that the negative electricity
Pole material is lanthanum-strontium ferro-cobalt.
6. the preparation process of the battery according to claim 1 or 2 with negative electricity extremely support, which is characterized in that first
1000~1300 DEG C of secondary sintering temperature.
7. the preparation process of the battery according to claim 1 or 2 with negative electricity extremely support, which is characterized in that second
1000~1300 DEG C of secondary sintering temperature.
8. the preparation process of the battery according to claim 1 or 2 with negative electricity extremely support, which is characterized in that described
It include preparing the negative electrode with the preparation process of the battery of negative electricity extremely support: described in the technique preparation using extrusion molding
Negative electrode.
9. the preparation process of the battery according to claim 1 or 2 with negative electricity extremely support, which is characterized in that by institute
The technique for stating segmentation conduit models coupling to the electrolyte structure surface includes pasting mask.
10. a kind of battery with negative electricity extremely support, which is characterized in that the battery with negative electricity extremely support is according to power
Benefit requires the preparation process of 1~9 described in any item batteries with negative electricity extremely support to be prepared.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910291673.XA CN109980257A (en) | 2019-04-09 | 2019-04-09 | A kind of battery and its preparation process with negative electricity extremely support |
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| CN201910291673.XA CN109980257A (en) | 2019-04-09 | 2019-04-09 | A kind of battery and its preparation process with negative electricity extremely support |
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| CN201910291673.XA Pending CN109980257A (en) | 2019-04-09 | 2019-04-09 | A kind of battery and its preparation process with negative electricity extremely support |
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