Reversible solid oxide battery taking high-temperature alloy material as support body and preparation method of reversible solid oxide battery

Abstract

The invention relates to the technical field of solid oxide batteries, in particular to a reversible solid oxide battery with a high-temperature alloy material as a supporting body and a preparation method of the reversible solid oxide battery. The reversible solid oxide battery comprises the high-temperature alloy supporting body, a porous cathode, a thin film electrolyte sheet and a porous anode from bottom to top, and a first through hole is formed in the middle of the high-temperature alloy supporting body; second through holes are evenly distributed in the circumferential side of the first through hole, and the high-temperature alloy used by the high-temperature alloy supporting body is single-crystal high-temperature alloy. According to the reversible solid oxide battery taking the high-temperature alloy material as the support body and the preparation method of the reversible solid oxide battery, the problems that the support body of the existing metal-supported solid oxide battery is easy to oxidize at a high temperature, the performance is reduced, the preparation process is limited, the battery configuration and the gas flow field design are unreasonable and the like are solved; the long-term stability and the service life of the battery are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of solid oxide batteries, and particularly to a reversible solid oxide battery with a superalloy material as a support and a preparation method thereof. Background Art

[0002] As an energy conversion device integrating the advantages of high efficiency, stability, environmental friendliness, strong adaptability, all-solid state, etc., a reversible solid oxide battery (RSOC) can directly and efficiently convert surplus clean energy (such as photovoltaic, wind power, hydropower, etc.) into chemical energy in the electrolysis mode (Solid Oxide Electrolysis Cells, SOEC) and store it in the form of fuel gas (such as CO, H2, etc.) or high-value derivative products (such as methanol, etc.); it can also efficiently convert the chemical energy in the fuel into electrical energy in the fuel cell mode (Solid Oxide Fuel Cells, SOFC).

[0003] Currently, solid oxide batteries are undergoing a development stage from traditional ceramic-supported (electrolyte-supported), cermet-supported (fuel electrode-supported) to metal-supported. Compared with traditional configurations, metal-supported SOEC can achieve full thin-filmization of the anode, electrolyte, and cathode, greatly reducing the ohmic impedance and alleviating the stress caused by different thermal expansion coefficients between the electrode and the electrolyte, thereby improving the electrochemical performance of the battery. In addition, existing metal-supported solid oxide batteries mainly use stainless steel materials as metal supports, including 430 stainless steel, Crofer 22 stainless steel, etc. This type of stainless steel material has reached the highest limit of its service temperature at the fuel cell operating temperature (700 - 800 °C). Severe environmental factors will cause high-temperature oxidation of the metal support, resulting in a decline in material performance and further affecting the long-term stability and service life of the battery.

[0004] Superalloys are widely used in the fields of aviation, aerospace, energy and power, petrochemical industry, and transportation. The research on introducing superalloys into solid oxide fuel cells is still blank, and there is no relevant technical report. Introducing superalloy materials into the field of solid oxide fuel cells can not only meet the requirements of the metal support for stable service at high temperatures, but also be a new exploration and attempt. However, the traditional preparation methods of metal supports are difficult to meet the diverse requirements for the structure and performance of the supports, which limits the further improvement of the cell performance. The traditional tape casting method is mainly applicable to materials with good plasticity and easy forming. For some special metal materials, such as superalloys with complex crystal structures and special physical properties, the tape casting method cannot spread them evenly for forming, and it is difficult to prepare supports with specific structures and functions. In addition, other traditional preparation processes, such as powder metallurgy, also have problems such as difficult sintering and inaccurate control of porosity when dealing with superalloys. Summary of the Invention

[0005] The object of the present invention is to provide a reversible solid oxide fuel cell with a superalloy material as the support and its preparation method, to solve the problems of easy oxidation and performance degradation of the support in existing metal-supported solid oxide fuel cells at high temperatures, as well as limited preparation processes, unreasonable battery configuration and gas flow field design, etc., and to improve the long-term stability and service life of the fuel cell.

[0006] To achieve the above object, the present invention provides a reversible solid oxide fuel cell with a superalloy material as the support, which includes a superalloy support, a porous cathode, a thin film electrolyte sheet, and a porous anode from bottom to top. A through hole 1 is provided in the middle of the superalloy support, and through holes 2 are evenly distributed on the periphery of the through hole 1. The superalloy used for the superalloy support is a single crystal superalloy, and in terms of weight percentage, it includes the following components: C 0.05 - 0.1%, Cr 11.5 - 12.5%, Co 8.5 - 9.5%, W 3.5 - 4.5%, Mo 1.5 - 2.5%, Al 3.0 - 4.0%, Ti 3.5 - 4.5%, Ta 4.5 - 5.5%, and the rest is Ni.

[0007] The single crystal superalloy used in the present invention has a highly ordered crystal structure, and the atoms are arranged closely and regularly, which greatly reduces the atomic diffusion rate, significantly improves its oxidation resistance, and has excellent high-temperature strength and thermal fatigue resistance, and can effectively resist the action of thermal stress. The alloying elements inside the superalloy will react with oxygen preferentially at high temperatures to form a dense and strongly adherent oxide protective film on the surface. This protective film can not only prevent oxygen from further diffusing inward, but also has a thermal expansion coefficient similar to that of the matrix metal, and can maintain good stability during the thermal cycle process, thus avoiding the damage of the support caused by the rupture of the oxide film and providing a stable structural support for the fuel cell.

[0008] Preferably, the material of the porous cathode is doped cerium oxide Fe 0.1 Sm 0.1 Ce 0.8 O 1.9 ; the material of the porous anode is a composite phase of La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ and Sm 0.2 Ce 0.8 O 1.9 , where δ is the content of oxygen vacancies.

[0009] Preferably, the material of the porous anode is a composite phase of NiO and (Y2O3) 0.08 Zr 0.92 O2, and the material of the porous cathode is a composite phase of La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ and Sm 0.2 Ce 0.8 O 1.9 .

[0010] Preferably, the material of the thin film electrolyte sheet is (Y2O3) 0.08 Zr 0.92 O2.

[0011] The present invention also provides a method for preparing the above-mentioned reversible solid oxide battery with a superalloy material as a support body, including the following steps, S1. Prepare a thin film electrolyte sheet; S2. Prepare a porous cathode and assemble the porous cathode onto the surface of the thin film electrolyte sheet; S3. Prepare a porous anode and assemble the porous anode onto the other surface of the thin film electrolyte sheet to obtain a membrane electrode thin sheet; S4. Prepare a superalloy support body, process a single crystal superalloy into a round sheet, then open through hole 1 and through hole 2 on the round sheet, and polish the inner walls of through hole 1 and through hole 2 to obtain a superalloy support body with a smooth surface; S5. Prepare a solid oxide battery, fixedly connect the superalloy support body to the lower side of the membrane electrode thin sheet to obtain a solid oxide battery.

[0012] Preferably, in S1, preparing the thin film electrolyte sheet is to configure the electrolyte sheet material into a casting slurry, prepare a casting green body, then punch or cut the green body to obtain a small sample, and finally sinter the small sample at a high temperature to obtain the thin film electrolyte sheet.

[0013] Preferably, in S2, the porous cathode is prepared by configuring the cathode material into a slurry through a combustion method, assembling the slurry onto the surface of the thin-film electrolyte by spraying or screen printing, and finally performing heat treatment to obtain the porous cathode.

[0014] Preferably, in S3, the porous anode is prepared by mixing the anode material evenly through grinding or ball milling and then configuring it into a slurry, assembling the slurry onto the other surface of the thin-film electrolyte by spraying or screen printing, and finally performing heat treatment to obtain the porous anode.

[0015] Preferably, in S4, the radius of the wafer is 10.0 - 12.0 mm, the thickness of the wafer is 0.1 - 0.3 mm, the radius of the first through-hole is 5 - 6 mm, and the radius of the second through-hole is 1.2 - 1.6 mm.

[0016] Preferably, in S5, the fixed connection is one of the metal oxide reduction method, the brazing method, and the conductive adhesive bonding method.

[0017] Advantages of the present invention: (1) In the present invention, a single-crystal superalloy is introduced as a material into the solid oxide battery to prepare the support, significantly improving the stability of the battery in a high-temperature environment, effectively avoiding the oxidation problem of the support, and extending the service life of the battery.

[0018] (2) The preparation method of the solid oxide battery of the present invention, while not destroying the complete crystal structure of the high-temperature alloy support, ensures that the material still retains its mechanical and thermophysical properties, can meet the diverse requirements for the structure and performance of the high-temperature alloy support, and can achieve standardized and large-scale production, providing technical support for the large-scale application of solid oxide batteries.

[0019] (3) By providing the first through-hole and the second through-hole on the high-temperature alloy support, the present invention forms an "interdigitated" gas flow field in the reversible solid oxide battery, enabling it to have a smooth gas transmission function, strengthening the gas flow and diffusion in this configuration, forcing the reaction gas to pass through the electrode for sufficient reaction, thereby improving the electrochemical performance. At the same time, the relatively gentle flow rate can also ensure the stable operation of the thin-film electrolyte and improve the service life.

[0020] Next, through the drawings and embodiments, the technical solutions of the present invention will be further described in detail. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a reversible solid oxide battery with a high-temperature alloy material as the support according to the present invention; Figure 1 a in is a schematic structural diagram of the reversible solid oxide battery, Figure 1 b in is a schematic diagram of the high-temperature alloy support; Figure 2Schematic diagram of the gas flow field of a reversible solid oxide battery with a superalloy material as the support in the present invention; Figure 3 Voltage-current curve of the metal-supported electrolytic cell prepared in Example 3 of the present invention and impedance spectrogram at open circuit voltage; Figure 3 a in it is the voltage-current curve, Figure 3 b in it is the impedance spectrogram at open circuit voltage; Figure 4 Voltage-current curve of the metal-supported fuel cell prepared in Example 4 of the present invention and impedance spectrogram at open circuit voltage; Figure 4 a in it is the voltage-current curve, Figure 4 b in it is the impedance spectrogram at open circuit voltage; Figure 5 Schematic diagram of the stability test of the metal-supported fuel cell prepared in Example 4 of the present invention during constant current discharge at 0.4 A / cm 2 at 750 °C for 100 h.

[0022] Reference numerals: 1, superalloy support; 2, porous cathode; 3, thin film electrolyte sheet; 4, porous anode; 5, through hole 1; 6, through hole 2. Detailed implementation manners

[0023] The present invention will be further described below in conjunction with the drawings and embodiments. Unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meaning understood by those of ordinary skill in the field to which the present invention belongs. The features mentioned above in the present invention or the features mentioned in the specific examples can be combined arbitrarily. These specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0024] A reversible solid oxide battery with a superalloy material as the support includes a superalloy support, a porous cathode, a thin film electrolyte sheet, and a porous anode from bottom to top. A through hole 1 is provided in the middle of the superalloy support, and through holes 2 are evenly distributed on the periphery of the through hole 1. The superalloy used for the superalloy support is a single crystal superalloy, and includes the following components by weight percentage: C 0.05 - 0.1%, Cr 11.5 - 12.5%, Co 8.5 - 9.5%, W 3.5 - 4.5%, Mo 1.5 - 2.5, Al 3.0 - 4.0%, Ti 3.5 - 4.5%, Ta 4.5 - 5.5%, and the rest is Ni.

[0025] Preferably, the material of the porous cathode is doped cerium oxide Fe 0.1 Sm 0.1 Ce 0.8 O 1.9 ; the material of the porous anode is La0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ and Sm 0.2 Ce 0.8 O 1.9 A composite phase of, where δ is the content of oxygen vacancies.

[0026] Preferably, the material of the porous anode is NiO and (Y2O3) 0.08 Zr 0.92 A composite phase of ZrO2, and the material of the porous cathode is La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ and Sm 0.2 Ce 0.8 O 1.9 A composite phase of.

[0027] Preferably, the material of the thin film electrolyte sheet is (Y2O3) 0.08 Zr 0.92 O2.

[0028] In some embodiments of the present invention, the single crystal superalloy is the DD413 single crystal superalloy prepared by the Institute of Metal Research, Chinese Academy of Sciences.

[0029] The present invention also provides a method for preparing the above-mentioned reversible solid oxide battery with a superalloy material as a support body, including the following steps, S1. Prepare a thin film electrolyte sheet; S2. Prepare a porous cathode and assemble the porous cathode on the surface of the thin film electrolyte sheet; S3. Prepare a porous anode and assemble the porous anode on the other surface of the thin film electrolyte sheet to obtain a membrane electrode thin sheet; S4. Prepare a superalloy support body, process the single crystal superalloy into a round sheet, then open through hole 1 and through hole 2 on the round sheet, and polish the inner walls of through hole 1 and through hole 2 to obtain a superalloy support body with a smooth surface; S5. Prepare a solid oxide battery, and fixedly connect the superalloy support body to the lower side of the membrane electrode thin sheet to obtain a solid oxide battery.

[0030] Preferably, in S1, preparing the thin film electrolyte sheet is to configure the electrolyte sheet material into a casting slurry, prepare a casting green body, then punch or cut the green body to obtain a small sample, and finally sinter the small sample at a high temperature to obtain the thin film electrolyte sheet.

[0031] Preferably, in S2, the porous cathode is prepared by configuring the cathode material into a slurry through a combustion method, assembling the slurry onto the surface of the thin-film electrolyte by spraying or screen printing, and finally performing heat treatment to obtain the porous cathode.

[0032] Preferably, in S3, the porous anode is prepared by configuring the anode material into a slurry through a combustion method, then mixing it evenly by grinding or ball milling, assembling the slurry onto the other surface of the thin-film electrolyte by spraying or screen printing, and finally performing heat treatment to obtain the porous anode.

[0033] In some embodiments of the present invention, the thin-film electrolyte sheet, porous cathode, and porous anode in steps S1 - S3 are prepared by the preparation method of the patent CN202211030216.3 "High-performance ultra-thin positive electrode - electrolyte - negative electrode solid oxide battery and its preparation method".

[0034] In some embodiments of the present invention, in S4, the single-crystal superalloy material rod is cut by wire cutting to obtain a sheet blank with a thickness of 0.5 - 0.7 mm, and then the thick sheet blank is processed into a round sheet by a numerical control machine tool.

[0035] Preferably, in S4, the radius of the round sheet is 10.0 - 12.0 mm, the thickness of the round sheet is 0.1 - 0.3 mm, the radius of the first through hole is 5 - 6 mm, and the radius of the second through hole is 1.2 - 1.6 mm.

[0036] In some embodiments of the present invention, in S4, the first through hole and the second through hole are opened by first using the electric discharge machining technology to burn through at the centers of the preset first through hole and the second through hole on the round sheet, and then threading a preset wire cutting wire through and removing the first through hole and the second through hole by internal routing.

[0037] Preferably, in S5, the fixed connection is achieved by using one of the metal oxide reduction method, brazing method, or conductive adhesive bonding method. The present invention does not further limit the metal oxide reduction method, brazing method, or conductive adhesive bonding method, and those well-known to those skilled in the art can be used.

[0038] In some embodiments of the present invention, the metal oxide reduction method is to coat an appropriate amount of metal oxide slurry (such as iron oxide, nickel oxide, etc.) on one side of the membrane electrode thin sheet, attach the superalloy support to one side of the metal oxide slurry, dry it and then place it in a tubular furnace with a reducing atmosphere for heating and reduction, and a solid oxide battery connected by a metal single crystal network can be obtained.

[0039] Example 1 As Figure 1 - Figure 2 shown, the present invention provides a reversible solid oxide battery with a superalloy material as the support, which is constructed from bottom to top including a superalloy support 1, a porous cathode 2 (Fe 0.1 Sm 0.1Ce 0.8 O 1.9 ), thin film electrolyte sheet 3 ((Y2O3) 0.08 Zr 0.92 O2) and porous anode 4 (La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ and Sm 0.2 Ce 0.8 O 1.9 composite phase), the electrolytic gas mixture of the metal-supported electrolytic cell is CO and CO2 with a volume ratio of 3:7.

[0040] A through hole 5 is provided in the middle of the superalloy support 1, and through holes 6 are uniformly distributed on the periphery of the through hole 5. The superalloy used for the superalloy support 1 is a single crystal superalloy, and it includes the following components by weight percentage: C 0.05%, Cr 11.5%, Co 8.5%, W 3.5%, Mo 1.5%, Al 3.0%, Ti 3.5%, Ta 4.5%, and the rest is Ni.

[0041] Example 2 The present invention provides a reversible solid oxide cell with a superalloy material as the support, which is constructed from bottom to top including a superalloy support 1, a porous cathode 2 (Fe 0.1 Sm 0.1 Ce 0.8 O 1.9 ), thin film electrolyte sheet 3 ((Y2O3) 0.08 Zr 0.92 O2) and porous anode 4 (La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ and Sm 0.2 Ce 0.8 O 1.9 composite phase), the electrolytic gas mixture of the metal-supported electrolytic cell is CO and CO2 with a volume ratio of 3:7.

[0042] A through hole 5 is provided in the middle of the superalloy support 1, and through holes 6 are uniformly distributed on the periphery of the through hole 5. The superalloy used for the superalloy support 1 is a single crystal superalloy, and it includes the following components by weight percentage: C 0.1%, Cr 12.5%, Co 9.5%, W 4.5%, Mo 2.5, Al 4.0%, Ti 4.5%, Ta 5.5%, and the rest is Ni.

[0043] Example 3 The present invention provides a reversible solid oxide battery with a superalloy material as the support, and constructs a metal-supported electrolytic cell including a superalloy support 1, a porous cathode 2 (Fe 0.1 Sm 0.1 Ce 0.8 O 1.9 ), a thin film electrolyte sheet 3 ((Y2O3) 0.08 Zr 0.92 O2), and a porous anode 4 (La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ and Sm 0.2 Ce 0.8 O 1.9 duplex phase), and the electrolytic gas mixture is CO and CO2 with a volume ratio of 3:7.

[0044] A through hole 5 is provided in the middle of the superalloy support 1, and through holes 6 are evenly distributed on the periphery of the through hole 5. The superalloy used for the superalloy support 1 is a single crystal superalloy, and includes the following components by weight percentage: C 0.08%, Al 3.6%, Ti 4.1%, Ta 5%, Cr 12%, W 3.8%, Mo 1.9%, Co 9%, and the rest is Ni.

[0045] As Figure 2 shown, the through hole 5 is an air inlet hole, the through hole 6 is an exhaust hole, and a porous electrode (porous cathode 2 and porous anode 4) is used as a transmission path between the through hole 5 and the through hole 6 to form an "interdigitated" gas flow field. When testing the battery, only the used inlet pipe needs to be inserted into the central through hole 5, which can force the reactants to fully contact the catalyst, improve the utilization rate of raw materials, save costs, and the "interdigitated" gas flow field only needs to use a very small gas flow rate, and a relatively gentle flow rate can also ensure the stable operation of the thin film electrolyte and improve the service life of the battery.

[0046] Example 4 The present invention provides a reversible solid oxide battery with a superalloy material as the support, and constructs a metal-supported electrolytic cell including a superalloy support 1, a porous anode 4 (duplex phase of NiO and (Y2O3) 0.08 Zr 0.92 O2), a thin film electrolyte sheet 3 ((Y2O3) 0.08 Zr 0.92 O2), and a porous cathode 2 (La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ and Sm 0.2 Ce0.8 O 1.9 A metal-supported fuel cell (a composite phase of 1.9 ) that uses H2 as fuel.

[0047] A through-hole 5 is provided in the middle of the superalloy support 1, and through-holes 6 are evenly distributed on the periphery of the through-hole 5. The superalloy used for the superalloy support 1 is a single-crystal superalloy, and it includes the following composition components by weight percentage: Al 3.6%, Ti 4.1%, Ta 5%, Cr 12%, W 3.8%, Mo 1.9%, Co 9%, and the rest is Ni.

[0048] Example 5 The present invention provides a method for preparing a reversible solid oxide battery with a superalloy material as a support, including the following steps: S1. Prepare a thin film electrolyte sheet 3. Configure the electrolyte sheet material into a casting slurry, prepare a casting green body, then punch or cut the green body to obtain a small sample, and finally sinter the small sample at a high temperature to obtain the thin film electrolyte sheet 3; S2. Prepare a porous cathode 2. Configure the cathode material into a slurry, apply the slurry to the surface of the thin film electrolyte by spraying or screen printing, and finally perform heat treatment to obtain the porous cathode 2; S3. Prepare a porous anode 4. Configure the anode material into a slurry by a combustion method, then mix it evenly by grinding or ball milling, apply the slurry to the other surface of the thin film electrolyte by spraying or screen printing, and finally perform heat treatment to obtain the porous anode 4, thus obtaining a membrane electrode thin sheet; S4. Prepare a superalloy support 1. Use wire cutting to obtain a thick sheet blank from a single-crystal superalloy material rod, then use a numerical control machine tool to process the thick sheet blank into a circular sheet with a radius of 12.0 mm and a thickness of 0.3 mm. Then, use an electric discharge drilling technique to burn through at the centers of a through-hole 5 with a preset radius of 6 mm and a through-hole 6 with a radius of 1.6 mm on the circular sheet. Pass a preset wire cutting wire through the holes, and cut out the through-hole 5 and the through-hole 6 from the inside, and polish the inner walls of the through-hole 5 and the through-hole 6 to obtain a superalloy support 1 with a smooth surface; S5. Prepare a solid oxide battery. Fix and connect the superalloy support 1 to the lower side of the membrane electrode thin sheet to obtain a solid oxide battery.

[0049] Performance testing Test the voltage-current curve and impedance spectrum at open circuit voltage of the metal-supported electrolytic cell prepared in Test Example 3. The results are as Figure 3 shown. At 850 °C, the current density for electrolyzing the mixed gas at a voltage of 1.5 V reaches 2 A / cm 2 , and the ohmic impedance is only 0.2 Ω·cm 2。It shows that the metal-supported electrolytic cell prepared in Example 3 has good thermal stability and high-temperature resistance.

[0050] The voltage-current curve and impedance spectrum at open circuit voltage of the metal-supported fuel cell prepared in Test Example 4 were tested, and the results are as Figure 4 shown. The maximum power density at 850 °C is 0.86 W / cm 2 , indicating that the fuel cell supported by the superalloy prepared in Example 4 has good thermal stability and electrochemical stability at high temperatures.

[0051] The stability of the metal-supported fuel cell prepared in Test Example 4 during constant current discharge at 0.4 A / cm at 750 °C for 100 h was tested, and the results are as 2 shown. During the constant current discharge at 0.4 A / cm at 750 °C, the voltage decreased slightly in the initial stage and then quickly tended to be stable. During the entire 100 h test time, the voltage basically remained at about 0.4 V with very little fluctuation. It shows that the fuel cell supported by the superalloy prepared in Example 4 has good stability. Figure 5 shown. During the constant current discharge at 0.4 A / cm at 750 °C, the voltage decreased slightly in the initial stage and then quickly tended to be stable. During the entire 100 h test time, the voltage basically remained at about 0.4 V with very little fluctuation. It shows that the fuel cell supported by the superalloy prepared in Example 4 has good stability. 2 Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A reversible solid oxide battery with a high temperature alloy material as a support, characterized in that: From bottom to top, it includes a high-temperature alloy support, a porous cathode, a thin film electrolyte sheet and a porous anode. A through hole one is opened in the middle of the high-temperature alloy support, and through holes two are evenly distributed around the through hole one. The high-temperature alloy used in the high-temperature alloy support is a single crystal high-temperature alloy, which includes the following components by weight percentage: C 0.05-0.1%, Cr 11.5-12.5%, Co 8.5-9.5%, W 3.5-4.5%, Mo 1.5-2.5%, Al 3.0-4.0%, Ti 3.5-4.5%, Ta 4.5-5.5%, and the rest is Ni.

2. A reversible solid oxide battery with a high temperature alloy material as a support according to claim 1, characterized in that: The porous cathode material is doped cerium oxide Fe 0.1 Sm 0.1 Ce 0.8 O 1.9 ; The material of the porous anode is La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ and Sm 0.2 Ce 0.8 O 1.9 The composite phase of δ is the content of oxygen vacancies.

3. The reversible solid oxide battery with a high temperature alloy material as a support according to claim 1, characterized in that: The porous anode is made of NiO and (Y2O3) 0.08 Zr 0.92 O2 complex phase, the porous cathode material is La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ and Sm 0.2 Ce 0.8 O 1.9 The complex phase.

4. A reversible solid oxide battery with a high temperature alloy material as a support according to claim 2 or 3, characterized in that: The material of the thin film electrolyte is (Y2O3) 0.08 Zr 0.92 O2.

5. A method for preparing a reversible solid oxide battery with a high temperature alloy material as a support as claimed in any one of claims 1 to 4, characterized in that: The following steps are included: S1, preparing a thin film electrolyte sheet; S2, preparing a porous cathode, and assembling the porous cathode onto the surface of the thin film electrolyte sheet; S3, preparing a porous anode, and assembling the porous anode to the other surface of the thin film electrolyte sheet to obtain a membrane electrode sheet; S4, preparing a high-temperature alloy support body, processing a single crystal high-temperature alloy into a disc, then opening a through hole 1 and a through hole 2 on the disc, and grinding the inner walls of the through hole 1 and the through hole 2 to obtain a high-temperature alloy support body with a smooth surface; S5. Prepare a solid oxide battery, fix and connect the high-temperature alloy support to the lower side of the membrane electrode sheet to obtain a solid oxide battery.

6. The method for preparing a reversible solid oxide battery using a high temperature alloy material as a support according to claim 5, characterized in that: The preparation of the thin film electrolyte sheet in S1 is to configure the electrolyte sheet material into a tape casting slurry, prepare a tape casting green body, then punch or cut the green body to obtain a small sample, and finally sinter the small sample at a high temperature to obtain the thin film electrolyte sheet.

7. The method for preparing a reversible solid oxide battery using a high temperature alloy material as a support according to claim 5, characterized in that: The porous cathode is prepared in S2 by configuring the cathode material into a slurry by a combustion method, assembling the slurry onto the surface of the thin film electrolyte by spraying or screen printing, and finally performing a heat treatment to obtain the porous cathode.

8. The method for preparing a reversible solid oxide battery using a high temperature alloy material as a support according to claim 5, characterized in that: The porous anode is prepared in S3 by configuring the anode material into a slurry by a combustion method, then mixing it evenly by grinding or ball milling, assembling the slurry onto the other surface of the thin film electrolyte by spraying or screen printing, and finally performing heat treatment to obtain the porous anode.

9. The method for preparing a reversible solid oxide battery using a high temperature alloy material as a support according to claim 5, characterized in that: In S4, the radius of the disc is 10.0-12.0 mm, the thickness of the disc is 0.1-0.3 mm, the radius of through hole 1 is 5-6 mm, and the radius of through hole 2 is 1.2-1.6 mm.

10. The method for preparing a reversible solid oxide battery using a high temperature alloy material as a support according to claim 5, characterized in that: The fixed connection in S5 is one of a metal oxide reduction method, a soldering method, and a conductive adhesive bonding method.

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