A high-temperature observation furnace for testing reversible solid oxide battery stacks

Abstract

This invention discloses a high-temperature observation furnace for testing reversible solid oxide battery stacks, comprising a base, an electric furnace, a pressure application component, and multiple camera components. The electric furnace has multiple first mounting holes on its circumference that connect to the furnace cavity, and these first mounting holes are evenly distributed. The top of the electric furnace has a through-hole that connects to the furnace cavity, which is used to place the battery stack. The pressure application component is located on the base and above the electric furnace, and is used to extend into the furnace cavity through the through-hole to press the battery stack. Each of the multiple camera components corresponds one-to-one with one of the first mounting holes, and the camera components are adapted to fit the first mounting holes, mounted in the first mounting holes and facing the battery stack inside the furnace cavity. This application allows for the observation of reversible solid oxide battery stacks, overcoming the problem of not being able to monitor and record these dynamic changes at high temperatures in real time during testing, which is detrimental to the performance testing of the battery stack.

Description

Technical Field

[0001] This invention relates to the field of reversible solid oxide battery stack testing equipment, specifically to a high-temperature observation furnace for testing reversible solid oxide battery stacks. Background Technology

[0002] Reversible solid oxide batteries (RSOCs), as a type of fuel cell, possess unique advantages. They directly convert chemical energy into electrical energy through high-temperature electrochemical reactions, offering advantages such as high efficiency, low noise, and zero emissions of sulfur oxides and nitrogen oxides. Simultaneously, RSOCs can significantly reduce carbon dioxide emissions and are easily captured. This technology can utilize various resources such as natural gas, coal gasification, and biogas as fuels to achieve efficient power generation, providing a new pathway for the clean utilization of fossil energy in my country.

[0003] Patent CN212540648U discloses an integrated high-temperature fuel cell test bench, which includes a test bench consisting of a heating furnace, an integrated gas chromatography workstation, a tool / parts drawer group, a temperature control panel group, a gas type selection and flow control panel, an automated control display area, and an expandable electronic load area.

[0004] During the actual operation of RSOC fuel cells, especially under high temperature and load pressure conditions, the fuel cell may undergo dimensional changes. However, the existing technologies mentioned above cannot monitor and record these dynamic changes at high temperatures in real time during testing, which is not conducive to fuel cell performance testing. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a high-temperature observation furnace for testing reversible solid oxide battery stacks, solving the technical problem that the existing technology cannot monitor and record these dynamic changes at high temperatures in real time during testing, which is not conducive to the performance testing of the battery stack.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This invention provides a high-temperature observation furnace for testing reversible solid oxide battery stacks, comprising:

[0008] Base;

[0009] An electric furnace, wherein the circumference of the electric furnace is provided with a plurality of first mounting holes communicating with the furnace cavity, the plurality of first mounting holes being evenly distributed, and the top of the electric furnace is provided with a through hole communicating with the furnace cavity, the furnace cavity being used for placing battery stacks;

[0010] A pressure-applying assembly, disposed on the base and located above the electric furnace, is used to extend through the through-hole into the furnace cavity to press the battery stack; and

[0011] Multiple camera components are provided, each corresponding to one of the first mounting holes. The camera components are adapted to the first mounting holes and are installed in the first mounting holes, facing the battery stack inside the furnace cavity.

[0012] In some embodiments, the camera assembly includes a high-temperature resistant high-definition camera, which is rotatable up, down, left, and right.

[0013] In some embodiments, the high-temperature resistant high-definition camera operates at a temperature of 600-900°C, has a resolution of 1280x960, and has pixels of 4.4μm horizontally and 4.4μm vertically.

[0014] In some embodiments, the high-temperature observation furnace for testing reversible solid oxide battery stacks further includes a temperature detection component disposed within the furnace cavity, the temperature detection component being used to detect the temperature of the battery stack within the furnace cavity.

[0015] In some embodiments, the top of the electric furnace is provided with a plurality of second mounting holes, which are spaced apart along the circumferential direction of the through holes;

[0016] The temperature detection assembly includes multiple temperature sensors, each of which corresponds to a number of second mounting holes. Each temperature sensor is installed in a second mounting hole and its detection portion extends into the furnace cavity.

[0017] In some embodiments, the high-temperature observation furnace for testing reversible solid oxide battery stacks further includes a connecting pipe and a placement plate. The connecting pipe is installed on the base and extends into the furnace cavity. The upper end of the connecting pipe is used to connect to the battery stack. The placement plate is installed on the connecting pipe and located in the furnace cavity. The placement plate is used to place the battery stack.

[0018] In some embodiments, the electric furnace includes two furnace bodies arranged in opposite halves, which are slidably mounted on the base along directions of approaching and moving away from each other, so as to have an open state in which they are moving away from each other to open the furnace cavity and a closed state in which they are moving close to each other to close the furnace cavity.

[0019] In some embodiments, the high-temperature observation furnace for testing reversible solid oxide battery stacks further includes a drive assembly connected to the two furnace bodies to drive the two furnace bodies to move closer to and further away from each other.

[0020] In some embodiments, the drive assembly includes a lead screw, a handwheel, and two connecting members. The lead screw is rotatably mounted on the base and includes a first connecting segment and a second connecting segment connected in sequence. The threads of the first connecting segment and the second connecting segment are arranged in opposite directions. The handwheel is mounted on one end of the lead screw. The two connecting members are respectively connected to the two furnace bodies. The connecting members are provided with threaded holes, and the two connecting members are respectively threaded into the first connecting segment and the second connecting segment.

[0021] In some embodiments, the high-temperature observation furnace for testing reversible solid oxide battery stacks further includes a locking assembly disposed on the furnace body, such that, in the closed state, the locking assembly connects the two furnace bodies to restrict the movement of the two furnace bodies.

[0022] Compared with existing technologies, the high-temperature observation furnace for testing reversible solid oxide battery stacks provided by this invention heats the battery stack to operate at a specific temperature. A pressure-applying component is located on the base and above the furnace, extending through a through-hole into the furnace cavity to press the battery stack firmly. This component applies pressure to the battery stack, enabling it to operate under specific pressure. A camera assembly is mounted in the first mounting hole and faces the battery stack within the furnace cavity. The combined use of the furnace and the pressure-applying component allows the battery stack to operate under high temperature and load pressure conditions, while multiple camera assemblies provide comprehensive observation of the dimensional changes during battery stack operation. In practical use, the battery stack is placed in the furnace chamber, and then the furnace begins to heat up. During the process of heating from room temperature to 750°C, each camera component takes three pictures at each temperature point to record the changes in the stack core during the heating process. During the reduction at 750°C and subsequent testing, a picture is taken every ten seconds to check for local anomalies in the stack core. During the cooling process after the test, three pictures are taken at each temperature point to record the changes in the stack core during the cooling process. After the experiment, the pictures are compared with the test data to provide a basis for analysis theory. This application can observe reversible solid oxide battery stacks, overcoming the problem that it is impossible to monitor and record these dynamic changes at high temperatures in real time during testing, which is not conducive to the performance testing of the stack.

[0023] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an embodiment of the high-temperature observation furnace for testing reversible solid oxide battery stacks provided by the present invention;

[0025] Figure 2 yes Figure 1 Front sectional view of the high-temperature observation furnace used for testing reversible solid oxide battery stacks;

[0026] Figure 3 yes Figure 1 A top view of the high-temperature observation furnace used for testing reversible solid oxide battery stacks;

[0027] Figure 4 yes Figure 1 A three-dimensional schematic diagram of a medium-sized electric furnace;

[0028] Figure 5 yes Figure 1 A schematic diagram of an explosion at a medium-sized electric furnace;

[0029] Figure 6 yes Figure 1 Front view of the electric furnace;

[0030] Figure 7 yes Figure 6 A sectional view along the middle AA;

[0031] Figure 8 yes Figure 6 A cross-sectional view along the middle BB.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1-Base, 2-Electric furnace, 21-Furnace body, 211-First mounting hole, 212-Through hole, 213-Second mounting hole, 214-Mounting groove, 215-Locking groove, 3-Pressure application component, 31-Hydraulic cylinder, 32-Pressure plate, 4-Camera component, 5-Temperature sensor, 6-Connecting pipe, 7-Placement plate, 8-Drive component, 81-Screw rod, 82-Handwheel, 83-Connector, 9-Locking component. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] To address the technical problem in existing technologies that cannot monitor and record these dynamic changes at high temperatures in real time during testing, which is detrimental to the performance testing of battery stacks, this invention provides a high-temperature observation furnace for testing reversible solid oxide battery stacks. This furnace enables observation of reversible solid oxide battery stacks, overcoming the problem of not being able to monitor and record these dynamic changes at high temperatures in real time during testing, which is detrimental to the performance testing of battery stacks.

[0036] Please see Figure 1, Figure 1 This is a schematic diagram of a high-temperature observation furnace used for testing reversible solid oxide battery stacks in one embodiment of the present invention.

[0037] This invention provides a high-temperature observation furnace for testing reversible solid oxide battery stacks, comprising a base 1, an electric furnace 2, a pressure application component 3, and multiple camera components 4. The electric furnace 2 has multiple first mounting holes 211 communicating with the furnace cavity on its circumference, and these first mounting holes 211 are evenly distributed. The top of the electric furnace 2 has a through hole 212 communicating with the furnace cavity, which is used to place the battery stack. The pressure application component 3 is located on the base 1 and above the electric furnace 2, and is used to extend into the furnace cavity through the through hole 212 to press the battery stack. Each of the multiple camera components 4 corresponds one-to-one with one of the multiple first mounting holes 211, and is adapted to the first mounting hole 211, with each camera component 4 mounted in the first mounting hole 211 and facing the battery stack inside the furnace cavity.

[0038] In this embodiment, please refer to Figures 1 to 3 The electric furnace 2 heats the battery stack, enabling it to operate at a specific temperature. The pressure-applying component 3 is located on the base 1 and above the electric furnace 2. The pressure-applying component 3 extends into the furnace cavity through the through-hole 212 to press the battery stack firmly. The pressure-applying component 3 applies a certain pressure to the battery stack, enabling it to operate under specific pressure. The camera component 4 is installed in the first mounting hole 211 and faces the battery stack inside the furnace cavity. The combined use of the electric furnace 2 and the pressure-applying component 3 allows the battery stack to operate under high temperature and load pressure conditions. Multiple camera components 4 can observe the dimensional changes of the battery stack from all angles during operation. In specific use, the electric furnace 2... The battery stack is placed in the furnace chamber, and then the electric furnace 2 begins to heat up. During the process of heating from room temperature to 750°C, each camera component 4 takes three pictures at each temperature point to record the changes in the stack core during the heating process. During the reduction at 750°C and subsequent testing, a picture is taken every ten seconds to check for local anomalies in the stack core. During the cooling process after the test, three pictures are taken at each temperature point to record the changes in the stack core during the cooling process. After the experiment, the pictures are compared with the test data to provide a basis for analysis theory. This application can observe reversible solid oxide battery stacks and overcome the problem that it is impossible to monitor and record these dynamic changes at high temperatures in real time during testing, which is not conducive to the performance testing of the stack.

[0039] In this embodiment, four first mounting holes 211 are provided, and the four first mounting holes 211 are evenly distributed around the circumference of the electric furnace 2. Correspondingly, four camera components 4 are provided. By setting four camera components 4, the purpose of observing the battery stack from all directions can be achieved.

[0040] In one embodiment, the camera assembly 4 includes a high-temperature resistant high-definition camera, which can be rotated up, down, left, and right.

[0041] In this embodiment, since the temperature inside the furnace cavity is high during the operation of the electric furnace 2, in order to avoid the influence of high temperature on the camera component 4, the camera component 4 is a high-temperature resistant high-definition camera. The high-temperature resistant high-definition camera has high-temperature resistance characteristics and can work in a high-temperature environment, which is beneficial for the observation of the battery stack. It can also be understood that the camera part of the high-temperature resistant high-definition camera can be rotated up, down, left, and right to adjust the camera angle, and the magnification of the high-temperature resistant high-definition camera can also be magnified and reduced.

[0042] It is understood that the high-temperature resistant high-definition camera is existing technology, and its rotation structure and magnification adjustment are also existing technologies, which will not be described in detail here.

[0043] In this embodiment, the high-temperature resistant high-definition camera can be installed in the first mounting hole 211 using high-temperature resistant sealant.

[0044] In one embodiment, the high-temperature resistant high-definition camera operates at a temperature of 600-900°C, has a resolution of 1280x960, and has pixels of 4.4μm horizontally and 4.4μm vertically.

[0045] In one embodiment, please refer to Figures 1 to 3 The high-temperature observation furnace for testing reversible solid oxide battery stacks also includes a temperature detection component, which is located inside the furnace cavity and is used to detect the temperature of the battery stack inside the furnace cavity.

[0046] In this embodiment, in order to monitor the temperature field changes in the fuel cell stack in real time, a temperature detection component is also provided in the furnace cavity. The temperature detection component detects the temperature field changes in the fuel cell stack in real time, and works with the high-temperature resistant high-definition camera to achieve the purpose of capturing images at each temperature point.

[0047] In one embodiment, please refer to Figures 2 to 4 The top of the electric furnace 2 is provided with a plurality of second mounting holes 213, which are arranged at intervals around the through hole 212. The temperature detection component includes a plurality of temperature sensors 5, which correspond one-to-one with the plurality of second mounting holes 213. Each temperature sensor 5 is installed in the second mounting hole 213 and its detection part extends into the furnace cavity.

[0048] In this embodiment, the through hole 212 is located in the middle of the electric furnace 2, and four second mounting holes 213 are provided. The four second mounting holes 213 are evenly distributed along the circumference of the through hole 212. Correspondingly, four temperature sensors 5 are provided. The temperature sensors 5 are installed in the second mounting holes 213, and their detection arrangement is located in the furnace cavity. By arranging the four temperature sensors 5 in various directions of the battery stack, the temperature field change in the battery stack can be monitored, thereby identifying the location of the battery stack sealing failure state.

[0049] In this embodiment, the temperature sensor 5 is a thermocouple.

[0050] In this embodiment, please refer to Figure 2 The force-applying component includes a hydraulic cylinder 31 and a pressure plate 32. The hydraulic cylinder 31 is located above the electric furnace 2, and its push rod is set downward. The through hole 212 is adapted to the diameter of the push rod of the hydraulic cylinder 31. The push rod extends from the through hole 212 into the furnace cavity and connects with the pressure plate 32, so as to push the pressure plate 32 to press the battery stack by the hydraulic cylinder 31.

[0051] In one embodiment, please refer to Figure 6 The high-temperature observation furnace for testing reversible solid oxide battery stacks further includes a connecting pipe 6 and a placement plate 7. The connecting pipe 6 is installed on the base 1 and extends into the furnace cavity. The upper end of the connecting pipe 6 is used to connect to the battery stack. The placement plate 7 is installed on the connecting pipe 6 and located in the furnace cavity. The placement plate 7 is used for placing the battery stack.

[0052] In this embodiment, since the battery stack needs to supply gaseous fuel to the battery stack during operation and also discharges gas, four connecting pipes 6 are provided. The four connecting pipes 6 are arranged linearly in the middle of the electric furnace 2. All four connecting pipes 6 are connected to the placement plate 7. The bottom of the electric furnace 2 is provided with four clearance holes. The connecting pipes 6 pass through the clearance holes and are fixedly connected to the base 1. The connecting pipes 6 connect the battery stack to the outside. Among the four connecting pipes 6, two of the connecting pipes 6 are air inlet pipes, which are used to supply fuel gas and air to the battery stack, respectively. The other two connecting pipes 6 are air outlet pipes, which are used to discharge fuel gas and air from the battery, respectively.

[0053] In one embodiment, please refer to Figures 4 to 6 The electric furnace 2 includes two furnace bodies 21 arranged in half. The two furnace bodies 21 are slidably mounted on the base 1 in directions of approaching and moving away from each other, so as to have an open state in which they are moving away from each other to open the furnace cavity and a closed state in which they are moving close to each other to close the furnace cavity.

[0054] In this embodiment, the electric furnace 2 is cylindrical in shape, and its furnace cavity is also cylindrical. To facilitate the placement and removal of the battery stack, the electric furnace 2 is composed of two furnace bodies 21 arranged in half. Correspondingly, the through hole 212, the clearance hole, and the two first mounting holes 211 are all arranged in half. The two furnace bodies 21 are arranged opposite each other along a first direction and are slidably mounted on the base 1 along the first direction, so that the two furnace bodies 21 can approach and move away from each other. When the two furnace bodies 21 approach and abut each other, they can enclose and form a complete furnace cavity. When the two furnace bodies 21 move away from each other, the furnace cavity can be opened. Since the placement plate 7 is mounted on the base 1 through the connecting pipe 6, the movement of the furnace body 21 does not affect the placement plate 7, so as to facilitate the removal of the fuel cell.

[0055] In one embodiment, please refer to Figures 1 to 2 The high-temperature observation furnace for testing reversible solid oxide battery stacks also includes a drive assembly 8, which is connected to the two furnace bodies 21 to drive the two furnace bodies 21 to move closer to and further away from each other.

[0056] In this embodiment, in order to improve the opening and closing efficiency, the two furnace bodies 21 can be set to move synchronously. By setting the drive component 8, the two furnace bodies 21 can be driven to move synchronously.

[0057] In one embodiment, please refer to Figure 2 The drive assembly 8 includes a lead screw 81, a handwheel 82, and two connecting parts 83. The lead screw 81 is rotatably mounted on the base 1. The lead screw 81 includes a first connecting section and a second connecting section connected in sequence. The threads of the first connecting section and the second connecting section are arranged in opposite directions. The handwheel 82 is mounted on one end of the lead screw 81. The two connecting parts 83 are respectively connected to the two furnace bodies 21. The connecting parts 83 are provided with threaded holes, and the two connecting parts 83 are respectively threadedly engaged with the first connecting section and the second connecting section.

[0058] In this embodiment, the lead screw 81 is rotatably mounted on the base 1 along the axis in the first direction, and the threads of the first connecting section and the second connecting section on the lead screw 81 are arranged in opposite directions. One of the connecting parts 83 is connected to one of the furnace bodies 21 and is threadedly engaged with the first connecting section, while the other connecting part 83 is connected to another furnace body 21 and is threadedly engaged with the second connecting section. This arrangement allows the two furnace bodies 21 to be driven to move closer and further apart simultaneously when the lead screw 81 is rotated, making the operation simple and convenient.

[0059] In one embodiment, please refer to Figures 6 to 8The high-temperature observation furnace for testing reversible solid oxide battery stacks also includes a locking assembly disposed on the furnace body 21, such that when the furnace body is closed, the locking assembly connects the two furnace bodies 21 to restrict the movement of the two furnace bodies 21.

[0060] In this embodiment, since the furnace body 21 is slidably mounted on the base 1, in order to prevent the furnace body 21 from accidentally sliding during testing, a locking component is also provided on the furnace body 21. When the two furnace bodies 21 are closed, the locking component connects the two furnace bodies 21, thereby achieving the purpose of fixing the furnace body 21.

[0061] In this embodiment, one of the furnace bodies 21 has a semi-circular mounting groove 214 on its side wall, which is coaxial with the furnace body 21. The other furnace body 21 has a quarter-shaped locking groove 215 on its side wall, which is coaxial with the furnace body 21. The mounting groove 214 and the locking groove 215 correspond to each other and have the same radius.

[0062] The locking assembly includes a semi-circular locking member 9, which is slidably installed in the mounting groove 214. When the two furnace bodies 21 are closed, the mounting groove 214 and the locking groove 215 are connected, driving the locking member 9 to partially extend into the locking groove 215, thereby limiting the movement of the two furnace bodies 21.

[0063] The surface of the furnace body 21 is also provided with an elongated hole that connects to the mounting groove 214. A protrusion is formed on the outer side of the locking member 9, and the protrusion extends out of the mounting groove 214 from the elongated hole so that the operator can push the locking member 9.

[0064] In this embodiment, there are two mounting slots 214 and two locking slots 215. The two locking slots 215 are located on opposite sides of the furnace body 21. There are also two locking members 9. The two locking members 9 are installed in the two mounting slots 214 one-to-one. The two locking members 9 can lock the opposite sides of the furnace body 21 to improve the locking strength.

[0065] In this embodiment, two locking components are provided, and the two locking components are respectively located at the upper and lower ends of the furnace body 21.

[0066] To better understand this invention, the following is combined with... Figures 1 to 8 The technical solution of the present invention will be described in detail below:

[0067] Initially, both furnace bodies 21 are open, exposing the placement plate 7. The battery stack is then placed on the placement plate 7 and connected to the connecting pipe 6. The handwheel 82 is then turned, driving the two furnace bodies 21 closer together via the lead screw 81 until they close. The hydraulic cylinder 31 drives the pressure plate 32 to press the battery stack downwards, completing the installation and fixation of the device. The electric furnace 2 and battery stack are then started for experimentation, with temperature increases from room temperature to 750°C. At each temperature point, each camera takes three photos, recording the core changes during the temperature rise. During the 750°C reduction and subsequent testing, photos are taken every ten seconds, with the camera angle and magnification adjusted as needed to check for local anomalies in the core. During the cooling process after the test, photos are taken three times at each temperature, recording the core changes during the cooling process. After the experiment, the photos are compared with the test data to provide a theoretical basis for analysis.

[0068] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A high-temperature observation furnace for testing reversible solid oxide battery stacks, characterized in that, It includes: Base; An electric furnace, wherein the circumference of the electric furnace is provided with a plurality of first mounting holes communicating with the furnace cavity, the plurality of first mounting holes being evenly distributed, and the top of the electric furnace is provided with a through hole communicating with the furnace cavity, the furnace cavity being used for placing battery stacks; A pressure-applying assembly, disposed on the base and located above the electric furnace, is used to extend through the through-hole into the furnace cavity to press the battery stack; and Multiple camera components are provided, each corresponding to one of the first mounting holes. The camera components are adapted to the first mounting holes and are installed in the first mounting holes, facing the battery stack inside the furnace cavity. It also includes a temperature detection component, which is disposed inside the furnace cavity and is used to detect the temperature of the battery stack inside the furnace cavity; It also includes a connecting pipe and a placement plate. The connecting pipe is installed on the base and extends into the furnace cavity. The upper end of the connecting pipe is used to connect to the battery stack. The placement plate is installed on the connecting pipe and located in the furnace cavity. The placement plate is used to place the battery stack. The electric furnace includes two furnace bodies arranged in half. The two furnace bodies are slidably mounted on the base along directions of approaching and moving away from each other, so as to have an open state in which they are moving away from each other to open the furnace cavity and a closed state in which they are moving close to each other to close the furnace cavity. It also includes a drive assembly connected to the two furnace bodies to drive the two furnace bodies to move closer and further apart; the drive assembly includes a lead screw, a handwheel, and two connecting parts; the lead screw is rotatably mounted on the base; the lead screw includes a first connecting section and a second connecting section connected in sequence, the threads of the first connecting section and the second connecting section being arranged in opposite directions; the handwheel is mounted on one end of the lead screw; the two connecting parts are respectively connected to the two furnace bodies; the connecting parts are provided with threaded holes; the two connecting parts are respectively threadedly engaged with the first connecting section and the second connecting section.

2. The high-temperature observation furnace for testing reversible solid oxide battery stacks according to claim 1, characterized in that, The camera assembly includes a high-temperature resistant high-definition camera, which can be rotated up, down, left, and right.

3. The high-temperature observation furnace for testing reversible solid oxide battery stacks according to claim 2, characterized in that, The high-temperature resistant high-definition camera has an operating temperature of 600-900°C, a resolution of 1280x960, and pixel dimensions of 4.4μm horizontally and 4.4μm vertically.

4. The high-temperature observation furnace for testing reversible solid oxide battery stacks according to claim 1, characterized in that, The top of the electric furnace is provided with a plurality of second mounting holes, which are arranged at intervals along the circumference of the through hole; The temperature detection assembly includes multiple temperature sensors, each of which corresponds to a number of second mounting holes. Each temperature sensor is installed in a second mounting hole and its detection portion extends into the furnace cavity.

5. The high-temperature observation furnace for testing reversible solid oxide battery stacks according to claim 1, characterized in that, The high-temperature observation furnace for testing reversible solid oxide battery stacks also includes a locking assembly disposed on the furnace body, such that, in the closed state, the locking assembly connects the two furnace bodies to restrict the movement of the two furnace bodies.

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