A method for preparing a solid oxide cell support and functional layers

Abstract

The application discloses a solid oxide cell support and a functional layer preparation method, which comprises the following steps: preparing a support slurry, wherein the support slurry comprises NiO, (Y2O3) 0.03 -(ZrO2) 0.97 , a pore-forming agent; preparing a support transition layer spraying material, wherein the support transition layer spraying material comprises a transition layer surface roughening agent; preparing a functional layer material slurry, wherein the functional layer material slurry is molten NiO-8YSZ; preparing a support primary blank through the support slurry; spraying the support transition layer spraying material on the surface of the support primary blank to obtain a support secondary blank; degassing the support secondary blank; and sintering the support primary blank, wherein the support comprises a surface-uneven support transition layer and a support base layer connected with the support transition layer; the support has high strength, high porosity and high open porosity, the functional layer has high catalytic performance, and the support and the functional layer have high bonding strength.

Description

Technical Field

[0001] This invention relates to the field of solid oxide batteries, and more specifically to a method for preparing a solid oxide battery support and functional layer. Background Technology

[0002] Solid oxide cells (SOCs) are all-solid-state ceramic devices that function as both solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs). SOFCs convert the chemical energy of fuels (such as H2, natural gas, and other hydrocarbons) into electrical energy, while SOECs can use renewable energy such as solar and wind power to produce hydrogen fuel through water electrolysis, or co-electrolyze water and carbon dioxide to produce syngas, which can then be used to synthesize basic chemical raw materials such as methanol, thus realizing the resource-based conversion of carbon dioxide.

[0003] In solid oxide batteries, the functional layer has high electronic / ionic conductivity, thermal stability, and chemical catalytic performance, and it needs to have high porosity to facilitate the passage of raw material gases.

[0004] In addition to high thermal stability and mechanical strength, the support in solid oxide batteries also needs high porosity.

[0005] Traditional solid oxide batteries require the preparation of a support first, and then the fabrication of a functional layer on the surface of the support. This method has problems: the support needs to be heated twice, which can reduce the pore size or porosity of the support, or result in low bonding strength between the functional layer and the support; and the functional layer may experience a decrease in catalytic activity during the sintering process.

[0006] Therefore, how to achieve high support strength, high porosity, high open porosity, high catalytic performance of functional layers, and high bonding strength between support and functional layers in the prepared solid oxide batteries has become an urgent problem to be solved in this field. Summary of the Invention

[0007] The purpose of this invention is to provide a method for preparing a solid oxide battery support and functional layer, which achieves high support strength, high porosity, high open porosity, high catalytic performance of the functional layer, and high bonding strength between the support and the functional layer in the solid oxide battery.

[0008] One aspect of the present invention provides a method for preparing a solid oxide battery support and functional layer, comprising the following steps:

[0009] The support material is prepared by means of NiO and (Y2O3). 0.03 -(ZrO2) 0.97 , pore-forming agent;

[0010] Prepare a transition layer spray material for the support body, wherein the transition layer spray material includes a transition layer surface roughening agent;

[0011] A functional layer material slurry is prepared, wherein the functional layer material slurry is molten NiO-8YSZ;

[0012] A primary blank of the support body is prepared by using support body clay material;

[0013] A transition layer of sprayed material is applied to the surface of the primary blank of the support body to obtain a secondary blank of the support body.

[0014] The secondary blank of the support body is debonded to obtain the raw blank of the support body;

[0015] The support blank is sintered to obtain a support body, which includes a support body transition layer with an uneven surface and a support body base layer connected to the support body transition layer; the roughness of the support body transition layer is Ra.

[0016] The functional layer material slurry is sprayed onto the surface of the support, and after cooling, a functional layer bonded to the support is obtained. The solid oxide battery includes a support and a functional layer; the functional layer is connected to the support transition layer of the support.

[0017] When the solid oxide battery described above is a forward-generating solid fuel cell (SOFC), the functional layer of the solid oxide battery serves as the anode of the SOFC. Taking the fabrication of a traditional NiO-3YSZ / 8YSZ / GDC / LSCF SOFC using the solid oxide battery support and functional layer fabrication method described above as an example, the power density can reach 0.5 W / cm². 2 The preferred embodiment above has a power density of 1W / cm³. 2 above;

[0018] When the solid oxide battery described is a reverse electrolytic solid oxide electrolyzer (SOEC), the functional layer of the solid oxide battery is the cathode of the SOEC. When a conventional NiO-3YSZ / 8YSZ / GDC / LSCF SOEC electrolyzer is prepared according to the solid oxide battery support and functional layer preparation method described above, the electrolysis current density can reach 0.48 A / cm². 2 Preferably, the electrolysis current density can reach 0.97 A / cm². 2 above.

[0019] The advantages of this invention over the prior art are as follows: The transition layer sprayed material, including a transition layer surface roughening agent, is applied to the surface of the primary support blank, thereby embedding the transition layer surface roughening agent uniformly on the surface of the primary support blank. After the secondary support blank undergoes debinding and subsequent sintering, the transition layer surface roughening agent evaporates. Therefore, the sintered support includes a support transition layer with an uneven surface and a support substrate layer connected to the transition layer. The support substrate layer contributes to high support strength, and the uneven surface of the transition layer facilitates subsequent connection with functional layers with high connection strength. Furthermore, the transition layer further improves the porosity and open area ratio of the support. This method achieves high surface roughness of the support and is simple to operate.

[0020] Molten NiO-8YSZ is sprayed onto the surface of the support, and after cooling, a functional layer bonded to the support is obtained. The molten NiO-8YSZ bonds with the uneven transition layer, which achieves high bonding strength of the functional layer while avoiding secondary sintering of the support. The functional layer needs to undergo a long sintering process, thus avoiding the problem of reduced porosity and open porosity of the support during secondary sintering, and avoiding the problem of reduced catalytic activity caused by sintering of the functional layer; at the same time, the support has high strength.

[0021] Furthermore, the support body clay material includes a first support body clay material;

[0022] The first support material comprises NiO and (Y2O3) in a mass ratio of (55-65):(35-45):(5-15):(15-25). 0.03 -(ZrO2) 0.97 , pore-forming agent, first forming agent;

[0023] The first molding agent comprises binder, plasticizer, and deionized water in a mass ratio of (20-30):(30-50):(30-50);

[0024] The adhesive includes one or more of polyacrylate, polyacrylamide, and carboxymethyl cellulose;

[0025] The plasticizer includes one of glycerin and polyethylene glycol.

[0026] The beneficial effect of the previous step is that, through the pore-forming agent, molding agent and addition amount of the clay material in the first support, the strength of the support matrix layer is high, and the porosity of the support matrix layer meets the requirements of solid oxide batteries. At the same time, through the mass ratio of the binder, plasticizer and deionized water (20-30):(30-50):(30-50), the strength of the primary blank or the primary blank of the main body of the support is high, which ensures that the primary blank of the main body of the support does not deform or get damaged when the transition layer of the support is sprayed, and the surface of the primary blank of the support has no other changes when the transition layer of the support is embedded.

[0027] Furthermore, the support body clay material also includes a second support body clay material;

[0028] The support clay material further includes a second support clay material; the second support clay material includes NiO and (Y2O3) in a mass ratio of (55-65):(35-45):(20-25):(30-60). 0.03 -(ZrO2) 0.97 , pore-forming agent, secondary forming agent;

[0029] The second molding agent comprises binder, plasticizer, and deionized water in a mass ratio of (15-25):(15-30):(60-100).

[0030] The beneficial effect of the previous step is that, by having a higher content of pore-forming agent and molding agent in the second support clay compared to the first support, the porosity of the support part after sintering the primary blank of the support connecting layer is higher than that of the support part after sintering the primary blank of the support body.

[0031] Furthermore, by using the second molding agent, which comprises binder, plasticizer, and deionized water in a mass ratio of (15-25):(15-30)(60-100), the hardness of the second support clay material after molding is lower than that of the first support clay material after molding. This results in the hardness of the primary blank of the support connecting layer being lower than that of the primary blank of the support body. This facilitates the embedding of the sprayed material of the support transition layer into the primary blank of the support connecting layer, and ultimately helps to achieve a high bonding strength between the support and the functional layer after sintering.

[0032] Furthermore, the surface roughening agent includes one or more of naphthalene, PMMA microspheres, PVB, starch, walnut powder, and graphite;

[0033] The surface roughening agent particles have a D50 of β; the ratio of Ra to β is 1:(1.5-2).

[0034] Preferably, the roughness of the support transition layer is Ra of 18-25 micrometers, and the D50 of the surface roughening agent particles is 27-50 micrometers.

[0035] The advantage of the previous step is that the surface roughening agent can be embedded in the surface of the primary support during spraying and can be volatilized in the subsequent glue removal and sintering process, thereby achieving an uneven surface of the support after sintering and no deformation in the strength of the support or in other aspects except for surface roughness.

[0036] The ratio of Ra to β in the support is approximately 1:(1.5-2), which helps to control the surface roughness of the support.

[0037] Furthermore, the material sprayed in the transition layer of the support also includes a transition layer binder, wherein the mass ratio of the transition layer binder to the surface roughening agent is (10-30):(50-80);

[0038] The adhesive for the transition layer is paraffin wax;

[0039] The preparation process of the transition layer sprayed material of the support body is as follows: the transition layer adhesive is heated to a liquid state at 47-50℃, and then a surface roughening agent is added and mixed to obtain the transition layer sprayed material of the support body.

[0040] The advantage of the previous step is that the material sprayed through the transition layer of the support also includes a transition layer binder, which helps to increase the probability of the surface roughening agent embedding into the surface of the primary blank of the support, and avoids the reduction of the strength of the support after subsequent sintering or changes in the shape of the support except for the outer surface roughness.

[0041] Furthermore, the preparation process of the secondary blank of the support body includes the following steps:

[0042] When the primary blank of the support body is non-cylindrical, the primary blank of the support body remains stationary during the spraying process;

[0043] When the primary blank of the support body is cylindrical, the primary blank of the support body rotates along the axis during the spraying process;

[0044] The material sprayed into the transition layer of the support is sprayed at an angle α to the tangent of the surface of the primary blank of the non-cylindrical support or the primary blank of the cylindrical support, and then adheres to or enters the surface of the primary blank.

[0045] The beneficial effect of the previous step is that by spraying the transition layer material of the support body at an angle α to the tangent of the surface of the non-cylindrical support body primary blank or the cylindrical support body primary blank, it is beneficial to achieve the surface roughening agent entering the surface of the support body primary blank at an angle. This helps to avoid the support body remaining unchanged in other aspects except for the surface roughness after sintering. At the same time, after subsequent debinding and volatilization, the axis of the voids formed on the surface of the support body is not perpendicular to the surface of the non-cylindrical support body, and the axis of the voids is not perpendicular to the tangent of the surface of the cylindrical support body; that is, inclined voids are formed on the surface of the support body, thereby significantly improving the bonding strength between the functional layer and the support body.

[0046] Furthermore, the first support clay material is extruded to obtain the primary support blank; or, the first support clay material and the second support clay material are simultaneously extruded to obtain the primary support blank.

[0047] The primary blank of the support body includes a primary blank of the main body of the support body and a primary blank of the support body connecting layer located on the surface of the primary blank of the main body of the support body;

[0048] The first support material is extruded to form a primary blank of the support body; the second support material is extruded to form a primary blank of the support connecting layer.

[0049] The material sprayed into the transition layer of the support adheres to or enters the surface of the primary blank of the connecting layer of the support.

[0050] Furthermore, α = 15-90°, preferably α = 15-45°;

[0051] The injection pressure of the material in the transition layer of the support is 0.04 MPa-0.1 MPa;

[0052] The distance between the material injection outlet of the transition layer of the support and the surface of the primary blank of the support is 20-100mm.

[0053] The advantages of the previous step are that it helps to achieve an uneven surface of the support after sintering, and the support does not deform in terms of strength or other aspects except for surface roughness; and at the same time, it achieves high bonding strength between the support and the functional layer.

[0054] Furthermore, the process of removing glue from the secondary blank of the support body is as follows: the secondary blank of the support body is heated, and the heating process is as follows: the temperature is raised to 90-105℃ at a heating rate of 9-10℃ / min; the temperature is raised from 90-105℃ to 180-200℃ at a heating rate of 5-6℃ / min.

[0055] The temperature is increased from 180-200℃ to 330-360℃ at a rate of 3-4℃ / min.

[0056] The beneficial effect of the previous step is that by heating to 90-105℃ at a rate of 9-10℃ / min, it is beneficial to achieve rapid volatilization of small molecule volatiles in the secondary blank of the support body, forming small pores, and avoiding problems such as cracking or deformation of the secondary blank of the support body.

[0057] By heating from 90-105℃ to 180-200℃ at a rate of 5-6℃ / min, and from 180-200℃ to 330-360℃ at a rate of 3-4℃ / min, it is beneficial to achieve the slow decomposition of volatiles with larger molecular weights. Furthermore, the slow volatilization is achieved based on the small-pore through-holes formed by the volatilization of small molecules, and the pore size gradually increases, thus avoiding problems such as cracking or deformation of the secondary green body of the support during sintering.

[0058] Furthermore, during the sintering process of the support blank, the sintering temperature is 1100-1350℃, and the holding time is 2-3h.

[0059] The advantages of the previous step are that it helps to achieve the strength of the support, while also helping to avoid a decrease in the porosity and open area of ​​the support; and it also helps to improve the activity of the functional layer. Detailed Implementation

[0060] To better understand the technical solution of the present invention, the present invention will be further described below with reference to specific embodiments.

[0061] Example 1:

[0062] This embodiment provides a method for preparing a solid oxide battery support and functional layer, including the following steps:

[0063] The support material is prepared by means of NiO and (Y2O3). 0.03 -(ZrO2) 0.97 , pore-forming agent;

[0064] The support clay material is a first support clay material; the first support clay material comprises NiO and (Y2O3) in a mass ratio of 60:40:10:20. 0.03 -(ZrO2) 0.97 , pore-forming agent, first forming agent;

[0065] The first molding agent comprises binder, plasticizer, and deionized water in a mass ratio of 25:40:40;

[0066] The binder comprises polyacrylate; the plasticizer comprises glycerin.

[0067] Prepare a transition layer spray material for the support body, wherein the transition layer spray material includes a transition layer surface roughening agent;

[0068] The surface roughening agent includes PMMA microspheres and PVB; the roughness of the support transition layer is Ra of 21 micrometers, and the D50 of the surface roughening agent particles is 39 micrometers.

[0069] A functional layer material slurry is prepared, wherein the functional layer material slurry is molten NiO-8YSZ;

[0070] A primary blank of the support body is prepared by using support body clay material;

[0071] The first support material is extruded to obtain the primary support blank; the support transition layer spray material is sprayed onto the surface of the primary support blank to obtain the secondary support blank.

[0072] The preparation process of the secondary blank of the support body includes the following steps:

[0073] The primary blank of the support body is cylindrical, and the primary blank of the support body rotates along the axis during the spraying process;

[0074] The material sprayed into the transition layer of the support body is sprayed at an angle α to the tangent of the surface of the cylindrical support body primary blank, and adheres to or enters the surface of the support body primary blank; wherein α = 30°;

[0075] The injection pressure of the material in the transition layer of the support is 0.07 MPa; the distance between the injection outlet of the material in the transition layer of the support and the surface of the primary blank of the support is 60 mm.

[0076] The secondary blank of the support body is debonded to obtain the raw blank of the support body;

[0077] The process of removing glue from the secondary blank of the support body is as follows: heating the secondary blank of the support body, the heating process is as follows: heating to 98°C at a heating rate of 9.5°C / min; heating from 98°C to 190°C at a heating rate of 5.5°C / min.

[0078] The temperature was increased from 190℃ to 345℃ at a rate of 3.5℃ / min.

[0079] The support blank is sintered to obtain a support body, which includes a support body transition layer with an uneven surface and a support body matrix layer connected to the support body transition layer; the roughness of the support body transition layer is Ra; during the sintering process of the support body blank, the sintering temperature is 1225℃ and the holding time is 2.5h.

[0080] The functional layer material slurry is sprayed onto the surface of the support, and after cooling, a functional layer bonded to the support is obtained. The solid oxide battery includes a support and a functional layer; the functional layer is connected to the support transition layer of the support.

[0081] The aforementioned solid oxide battery is a reverse electrolytic solid oxide electrolyzer (SOEC), and the functional layer of the solid oxide battery is the cathode of the SOEC. A conventional NiO-3YSZ / 8YSZ / GDC / LSCF SOEC electrolyzer can be prepared using the aforementioned solid oxide battery support and functional layer preparation method, achieving an electrolysis current density of 0.99 A / cm². 2 .

[0082] Example 2:

[0083] The contents that are the same as in Example 1 will not be repeated here; the different aspects of this embodiment compared to Example 1 are as follows:

[0084] This embodiment provides a method for preparing a solid oxide battery support and functional layer, which further includes the following steps:

[0085] The supporting mud material also includes a second supporting mud material;

[0086] The support clay material also includes a second support clay material; the second support clay material comprises NiO and (Y2O3) in a mass ratio of 58:38:24:58. 0.03 -(ZrO2) 0.97 , pore-forming agent, secondary forming agent;

[0087] The second molding agent comprises binder, plasticizer, and deionized water in a mass ratio of 18:18:90.

[0088] The first support clay material and the second support clay material are simultaneously extruded to obtain the primary blank of the support body;

[0089] The primary blank of the support body includes a primary blank of the main body of the support body and a primary blank of the support body connecting layer located on the surface of the primary blank of the main body of the support body;

[0090] The first support material is extruded to form a primary blank of the support body; the second support material is extruded to form a primary blank of the support connecting layer.

[0091] The material sprayed into the transition layer of the support adheres to or enters the surface of the primary blank of the connecting layer of the support.

[0092] The primary blank of the support body is plate-shaped and remains stationary during the spraying process.

[0093] The material sprayed into the transition layer of the support body is sprayed at an angle α to the surface of the primary blank of the plate-shaped support body, and adheres to or enters the surface of the primary blank of the support body; wherein α = 18°.

[0094] The material injection pressure of the transition layer of the support is 0.08 MPa;

[0095] The distance between the material injection outlet of the transition layer of the support and the surface of the primary blank of the support is 30mm.

[0096] The support material is a first support material; the first support material comprises NiO and (Y2O3) in a mass ratio of 63:43:8:18. 0.03 -(ZrO2) 0.97 , pore-forming agent, first forming agent;

[0097] The first molding agent comprises binder, plasticizer, and deionized water in a mass ratio of 28:48:48;

[0098] The adhesive includes polyacrylamide; the plasticizer includes polyethylene glycol.

[0099] The surface roughening agent includes PVB and starch; the roughness of the support transition layer is Ra of 24 micrometers, and the D50 of the surface roughening agent particles is 48 micrometers.

[0100] The process of removing glue from the secondary blank of the support body is as follows: heating the secondary blank of the support body, the heating process is as follows: heating to 103℃ at a heating rate of 9.8℃ / min; heating from 103℃ to 195℃ at a heating rate of 5.8℃ / min;

[0101] The temperature was increased from 195℃ to 350℃ at a rate of 3.8℃ / min.

[0102] During the sintering process of the support blank, the sintering temperature is 1330℃ and the holding time is 2.2h.

[0103] The aforementioned solid oxide battery is a forward-generating solid-state fuel cell (SOFC), and the functional layer of the solid oxide battery serves as the anode of the SOFC. Taking a conventional NiO-3YSZ / 8YSZ / GDC / LSCF SOFC battery prepared according to the aforementioned solid oxide battery support and functional layer preparation method as an example, the power density can reach 1.1 W / cm². 2 .

[0104] Example 3:

[0105] The contents that are the same as in Example 1 will not be repeated here; the different aspects of this embodiment compared to Example 1 are as follows:

[0106] This embodiment provides a method for preparing a solid oxide battery support and functional layer, which further includes the following steps:

[0107] The supporting mud material also includes a second supporting mud material;

[0108] The support clay material also includes a second support clay material; the second support clay material comprises NiO and (Y2O3) in a mass ratio of 62:43:22:35. 0.03 -(ZrO2) 0.97 , pore-forming agent, secondary forming agent;

[0109] The second molding agent comprises binder, plasticizer, and deionized water in a mass ratio of 22:28:70.

[0110] The first support clay material and the second support clay material are simultaneously extruded to obtain the primary blank of the support body;

[0111] The primary blank of the support body includes a primary blank of the main body of the support body and a primary blank of the support body connecting layer located on the surface of the primary blank of the main body of the support body;

[0112] The first support material is extruded to form a primary blank of the support body; the second support material is extruded to form a primary blank of the support connecting layer.

[0113] The material sprayed into the transition layer of the support adheres to or enters the surface of the primary blank of the connecting layer of the support.

[0114] The transition layer sprayed material of the support body also includes a transition layer binder, wherein the mass ratio of the transition layer binder to the surface roughening agent is 20:65; the transition layer binder is paraffin wax.

[0115] The preparation process of the transition layer sprayed material of the support body is as follows: the transition layer adhesive is heated to a liquid state at 49°C, and then a surface roughening agent is added and mixed to obtain the transition layer sprayed material of the support body.

[0116] The primary blank of the support body is plate-shaped and remains stationary during the spraying process.

[0117] The material sprayed into the transition layer of the support body is sprayed at an angle α to the surface of the primary blank of the plate-shaped support body, and adheres to or enters the surface of the primary blank of the support body; the angle is 43°.

[0118] The injection pressure of the material sprayed into the transition layer of the support is 0.05.

[0119] The distance between the material injection outlet of the transition layer of the support and the surface of the primary blank of the support is 80mm.

[0120] The support clay material is a first support clay material; the first support clay material comprises NiO and (Y2O3) in a mass ratio of 58:38:8:18. 0.03 -(ZrO2) 0.97 , pore-forming agent, first forming agent;

[0121] The first molding agent comprises binder, plasticizer, and deionized water in a mass ratio of 22:32:32;

[0122] The adhesive includes polyacrylate and polyacrylamide; the plasticizer includes...

[0123] The surface roughening agent includes PMMA microspheres; the D50 of the surface roughening agent particles is β; the ratio of Ra to β is 1:(1.5-2); the roughness of the support transition layer is Ra of 19 micrometers and the D50 of the surface roughening agent particles is 36 micrometers.

[0124] The process of removing glue from the secondary blank of the support body is as follows: heating the secondary blank of the support body, the heating process is as follows: heating to 93°C at a heating rate of 9.2°C / min; heating from 93°C to 185°C at a heating rate of 5.2°C / min;

[0125] The temperature was increased from 185℃ to 335℃ at a rate of 3.2℃ / min.

[0126] During the sintering process of the support blank, the sintering temperature is 1180℃ and the holding time is 2.8h.

[0127] The solid oxide battery described is a forward-generating solid fuel cell (SOFC), and the functional layer of the solid oxide battery serves as the anode of the SOFC. Taking a conventional NiO-3YSZ / 8YSZ / GDC / LSCF SOFC battery prepared according to the solid oxide battery support and functional layer preparation method described above as an example, the power density can reach 1.2 W / cm². 2 .

[0128] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, the above-described features have similar functions to (but are not limited to) those disclosed in this application.

Claims

1. A method for preparing a solid oxide battery support and functional layer, characterized in that, Includes the following steps: A support clay material is prepared, wherein the support clay material comprises NiO and (Y2O3). 0.03 -(ZrO2) 0.97 , pore-forming agent; Prepare a transition layer spray material for the support body, wherein the transition layer spray material includes a transition layer surface roughening agent; A functional layer material slurry is prepared, wherein the functional layer material slurry is molten NiO-8YSZ; A primary blank of the support body is prepared by using support body clay material; A transition layer of sprayed material is applied to the surface of the primary blank of the support body to obtain a secondary blank of the support body. The secondary blank of the support body is debonded to obtain the raw blank of the support body; The support blank is sintered to obtain a support body, which includes a support body transition layer with an uneven surface and a support body base layer connected to the support body transition layer; the roughness of the support body transition layer is Ra. The functional layer material slurry is sprayed onto the surface of the support, and after cooling, a functional layer bonded to the support is obtained. The solid oxide battery includes a support and a functional layer; the functional layer is connected to the support transition layer of the support. The surface roughening agent includes one or more of naphthalene, PMMA microspheres, PVB, starch, walnut powder, and graphite; The surface roughening agent particles have a D50 of β; the ratio of Ra to β is 1:(1.5-2). The support material includes a first support material; The first support material comprises NiO and (Y2O3) in a mass ratio of (55-65):(35-45):(5-15):(15-25). 0.03 -(ZrO2) 0.97 , pore-forming agent, first forming agent; The first molding agent comprises binder, plasticizer, and deionized water in a mass ratio of (20-30):(30-50):(30-50); The adhesive includes one or more of polyacrylate, polyacrylamide, and carboxymethyl cellulose; The plasticizer includes one of glycerin and polyethylene glycol; The material sprayed in the transition layer of the support also includes a transition layer binder, and the mass ratio of the transition layer binder to the surface roughening agent is (10-30):(50-80). The adhesive for the transition layer is paraffin wax.

2. The method for preparing the solid oxide battery support and functional layer according to claim 1, characterized in that, The supporting mud material also includes a second supporting mud material; The second support material comprises NiO and (Y2O3) in a mass ratio of (55-65):(35-45):(20-25):(30-60). 0.03 -(ZrO2) 0.97 , pore-forming agent, secondary forming agent; The second molding agent comprises binder, plasticizer, and deionized water in a mass ratio of (15-25):(15-30):(60-100).

3. The method for preparing the solid oxide battery support and functional layer according to claim 1, characterized in that, The roughness of the transition layer of the support is Ra of 18-25 micrometers, and the D50 of the surface roughening agent particles is 27-50 micrometers.

4. The method for preparing the solid oxide battery support and functional layer according to claim 3, characterized in that, The preparation process of the transition layer sprayed material of the support body is as follows: the transition layer adhesive is heated to a liquid state at 47-50℃, and then a surface roughening agent is added and mixed to obtain the transition layer sprayed material of the support body.

5. The method for preparing the solid oxide battery support and functional layer according to claim 2, characterized in that, The preparation process of the secondary blank of the support body includes the following steps: When the primary blank of the support body is non-cylindrical, the primary blank of the support body remains stationary during the spraying process; When the primary blank of the support body is cylindrical, the primary blank of the support body rotates along the axis during the spraying process; The material sprayed into the transition layer of the support is sprayed at an angle α to the tangent of the surface of the primary blank of the non-cylindrical support or the primary blank of the cylindrical support, and then adheres to or enters the surface of the primary blank.

6. The method for preparing the solid oxide battery support and functional layer according to claim 2, characterized in that, The first support material is extruded to obtain the primary support blank; or The first support clay material and the second support clay material are simultaneously extruded to obtain the primary blank of the support body; The primary blank of the support body includes a primary blank of the main body of the support body and a primary blank of the support body connecting layer located on the surface of the primary blank of the main body of the support body; The first support material is extruded to form a primary blank of the support body; the second support material is extruded to form a primary blank of the support connecting layer. The material sprayed into the transition layer of the support adheres to or enters the surface of the primary blank of the connecting layer of the support.

7. The method for preparing the solid oxide battery support and functional layer according to claim 5, characterized in that, The α = 15-90°; The injection pressure of the material in the transition layer of the support is 0.04 MPa-0.1 MPa; The distance between the material injection outlet of the transition layer of the support and the surface of the primary blank of the support is 20-100mm.

8. The method for preparing the solid oxide battery support and functional layer according to claim 7, characterized in that, The value of α is 15-45°.

9. The method for preparing the solid oxide battery support and functional layer according to claim 2, characterized in that, The process of removing glue from the secondary blank of the support body is as follows: heating the secondary blank of the support body, the heating process is as follows: heating to 90-105℃ at a heating rate of 9-10℃ / min; heating from 90-105℃ to 180-200℃ at a heating rate of 5-6℃ / min. The temperature is increased from 180-200℃ to 330-360℃ at a rate of 3-4℃ / min.

10. The method for preparing the solid oxide battery support and functional layer according to claim 2, characterized in that, During the sintering process of the support blank, the sintering temperature is 1100-1350℃ and the holding time is 2-3h.