Battery measuring device and SOFC (solid oxide fuel cell) single battery measuring system

Abstract

The invention provides a cell measuring device and an SOFC single cell measuring system, and relates to the technical field of fuel cell testing, the cell measuring device comprises a testing panel, a flow channel structure, an element mounting structure and a first leading-out structure, the flow channel structure comprises a plurality of parallel testing flow channels, two ends of the testing flow channels penetrate through the testing panel, and the first leading-out structure is arranged on the testing panel. The test panels positioned between the adjacent test runners form a separation part; the element mounting structure comprises a plurality of first mounting through holes and / or a plurality of second mounting through holes; the first leading-out structure comprises at least one leading-out groove which is used for leading the signal acquisition line out of the test panel. According to the invention, the signal acquisition elements can be accurately arranged in different areas in a plane, and electric, thermal and gas signals of each area in a battery operation state can be monitored in real time through the signal acquisition elements, so that the physical field distribution condition of the whole battery is truly represented, and a reliable basis is provided for optimizing the battery design.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fuel cell testing, in particular to a cell measurement device and a SOFC single cell measurement system. BACKGROUND

[0002] A solid oxide fuel cell is a high-temperature fuel cell using solid oxide as an electrolyte. It directly converts the chemical energy of fuel into electrical energy through an electrochemical reaction, has the advantages of high efficiency and environmental protection, and has broad application prospects in the fields of portable power sources, distributed power stations and underwater vehicles, and has become a research and development hotspot in recent years. At present, the materials of solid oxide cells are relatively stable. Taking the most widely used planar hydrogen electrode supported solid oxide cell as an example, it has a sandwich structure. The porous hydrogen electrode on one side is commonly a ceramic metal mixed material of nickel-yttria stabilized zirconia (YSZ), and the porous oxygen electrode on the other side is commonly a perovskite material such as La 1-x Sr x MnO 3-δ (LSM), La 1-x Sr x Co 1-y Fe y O 3-δ (LSCF), and the dense electrolyte layer in the middle is commonly YSZ. In order to meet the practical application requirements of commercialization, solid oxide cells need to provide higher reaction current. However, due to material limitations, in the case of limited reaction current density, larger area cells must be prepared. However, large area is easy to cause uneven distribution of temperature, electrical performance and gas distribution in each part of the cell, which seriously affects the efficient use of solid oxide cells and restricts their commercialization process. Therefore, how to efficiently measure the physical field distribution (such as thermal, electrical and gas signals) of each region of the cell to evaluate the performance of the cell has become a technical problem to be solved. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present application is to provide a cell measurement device and a SOFC single cell measurement system for efficiently measuring the physical field distribution of each region of the cell to evaluate the performance of the cell.

[0004] The above-mentioned purpose of the present application can be realized by adopting the following technical scheme. The present application provides a cell measurement device, comprising:

[0005] a test panel, the test panel comprising a first end face and a second end face arranged oppositely;

[0006] The flow channel structure comprises a plurality of parallel test flow channels arranged on the first end face, and both ends of the test flow channels penetrate the test panel, and the test panel between adjacent test flow channels forms a partition;

[0007] The element mounting structure comprises a plurality of first mounting through holes arranged in at least part of the test flow channels and / or a plurality of second mounting through holes arranged on at least part of the partition;

[0008] The first lead-out structure comprises at least one lead-out groove arranged on the second end face, one end of the lead-out groove extends to the side edge of the test panel, and the other end of the lead-out groove extends into the test panel, and the lead-out groove is used for leading out a signal collection line from the test panel.

[0009] In a preferred embodiment of the present application, the battery measurement device further comprises a clamp base, and an air inlet structure and an air outlet structure arranged on the clamp base, the clamp base is provided with a mounting groove, the test panel is detachably clamped in the mounting groove, the air inlet structure communicates with one end of each test flow channel, and the air outlet structure communicates with the other end of each test flow channel.

[0010] In a preferred embodiment of the present application, one end of the test flow channel is arranged in the side wall of the opposite mounting groove to form a first gas channel, the other end of the test flow channel is arranged in the side wall of the opposite mounting groove to form a second gas channel, the air inlet structure comprises a gas inlet communicating with the first gas channel, and the air outlet structure comprises a gas outlet communicating with the second gas channel.

[0011] In a preferred embodiment of the present application, the battery measurement device further comprises a second lead-out structure arranged on the clamp base, and the second lead-out structure is used for leading out a signal collection line from the clamp base.

[0012] In a preferred embodiment of the present application, the second lead-out structure comprises at least one lead-out through hole arranged on the side wall of the mounting groove, and the lead-out through hole is located on the side wall where the mounting groove and the test panel are connected.

[0013] In a preferred embodiment of the present application, the test panel is formed by a ceramic material.

[0014] In a preferred embodiment of the present application, the battery measurement device further comprises a sealing structure, and the sealing structure comprises a first sealing layer used for filling between the lead-out groove and the signal collection line and / or a second sealing layer used for filling between the lead-out through hole and the signal collection line.

[0015] In a preferred embodiment of the present application, the first sealing layer is formed by a ceramic sealing glue; and / or, the second sealing layer is formed by a ceramic sealing glue.

[0016] In a preferred embodiment of the present application, the first mounting through hole has a hole size of 0.3mm to 0.7mm; and / or, the second mounting through hole has a hole size of 0.3mm to 0.7mm.

[0017] In a preferred embodiment of the present application, the test flow channel is provided in a number of 10 to 20.

[0018] The present application also provides a SOFC single cell measurement system, comprising two cell test devices according to any one of claims 1 to 10, and a plurality of signal acquisition elements, the two cell test devices being respectively abutted on two sides of the SOFC single cell, and each signal acquisition element being arranged in the first mounting through hole and / or the second mounting through hole of the cell test device.

[0019] In a preferred embodiment of the present application, the signal acquisition element comprises one of a temperature signal K-type thermocouple, a current voltage signal acquisition element and a gas signal acquisition element.

[0020] The technical solution of the present application has the following remarkable beneficial effects:

[0021] When the cell measurement device according to the present application is used, by providing a plurality of parallel test flow channels and a separation portion on the test panel, and combining the first mounting through hole and the second mounting through hole, the signal acquisition element can be accurately arranged in different areas in the plane. Through the signal acquisition element, the electric, thermal and gas signals of each area under the operation state of the cell can be monitored in real time, so as to truly represent the physical field distribution of the entire cell.

[0022] Furthermore, by providing the first lead-out structure on the test panel, the signal acquisition line can be led out from the test panel to the outside by using the first lead-out structure, avoiding a complex wiring process and simplifying the operation steps.

[0023] Compared with the traditional overall performance evaluation technology, the present application can more carefully analyze the local performance difference of the cell, thereby providing a reliable basis for optimizing the design of the cell. Furthermore, the present application also has the advantages of simple and reliable structure, easy operation, and can verify the flow field design by combining the gas flow and current size factors, thereby providing a design basis for the practical application of the solid oxide fuel cell. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0025] The drawings described herein are for illustrative purposes only, and are not intended to limit the scope of the present application in any way. In addition, the shapes and scale sizes of the components in the drawings are only illustrative, and are used to help understand the present application, and are not specifically limited to the shapes and scale sizes of the components. Those skilled in the art can select various possible shapes and scale sizes to implement the present application according to specific circumstances under the teaching of the present application.

[0026] Figure 1 A perspective structural schematic diagram of an embodiment of the test panel described in the present application;

[0027] Figure 2 A perspective structural schematic diagram of an embodiment of the first lead-out structure described in the present application;

[0028] Figure 3 A perspective structural schematic diagram of an embodiment of the clamp base described in the present application;

[0029] Figure 4 A structural schematic diagram of an embodiment of the battery measurement device described in the present application;

[0030] Figure 5 A side structural schematic diagram of an embodiment of the SOFC single cell measurement system described in the present application.

[0031] Reference numerals of the above drawings:

[0032] 10, SOFC single cell; 11, cathode; 12, anode;

[0033] 20, signal collection line;

[0034] 100, test panel; 101, first end face; 102, second end face;

[0035] 110, flow channel structure; 111, test flow channel; 112, separation part;

[0036] 120, element mounting structure; 121, first mounting through hole; 122, second mounting through hole;

[0037] 130, first lead-out structure; 131, lead-out groove;

[0038] 200, clamp base; 210, air inlet structure; 220, air outlet structure;

[0039] 230, mounting groove; 231, first gas passage; 232, second gas passage;

[0040] 240, second lead-out structure; 241, lead-out through hole;

[0041] 300, signal acquisition element. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0043] Embodiment one

[0044] Please refer to Figure 1 and Figure 2 It is shown that the embodiment of the present application provides a battery measurement device, which comprises a test panel 100, a flow channel structure 110, an element mounting structure 120 and a first lead-out structure 130. The test panel 100 comprises a first end surface 101 and a second end surface 102 arranged oppositely. The flow channel structure 110 comprises a plurality of mutually parallel test flow channels 111 arranged on the first end surface 101. Both ends of the test flow channel 111 penetrate the test panel 100. The test panel 100 between adjacent test flow channels 111 constitutes a partition 112. The element mounting structure 120 comprises a plurality of first mounting through holes 121 arranged at intervals in at least part of the test flow channels 111 and / or a plurality of second mounting through holes 122 arranged at intervals on at least part of the partition 112. The first lead-out structure 130 comprises at least one lead-out groove 131 arranged on the second end surface 102. One end of the lead-out groove 131 extends to the side edge of the test panel 100, and the other end of the lead-out groove 131 extends to be arranged in the test panel 100. The lead-out groove 131 is used to lead out the signal acquisition wire 20 from the test panel 100.

[0045] Overall, when the battery measurement device is used, by arranging a plurality of mutually parallel test flow channels 111 and partitions 112 on the test panel 100, and combining the first mounting through holes 121 and the second mounting through holes 122, the signal acquisition element 300 can be accurately arranged in different regions in the plane. Through the signal acquisition element 300, the electric, thermal and gas signals of each region under the running state of the battery can be monitored in real time, so as to truly represent the physical field distribution of the whole battery.

[0046] And, the application sets the first lead-out structure 130 on the test panel 100, and the first lead-out structure 130 can lead out the signal collection line 20 from the test panel 100 to the outside, thereby avoiding a complicated wiring process and simplifying the operation steps.

[0047] Compared with the traditional overall performance evaluation technology, the application can analyze the local performance difference of the battery more carefully, thereby providing a reliable basis for optimizing the battery design.

[0048] In the embodiment of the application, the designer can adjust the setting number and arrangement mode of the first mounting through hole 121 and the second mounting through hole 122 according to the use requirement, which is not specifically limited herein.

[0049] Preferably, the setting number of the first mounting through hole 121 and the second mounting through hole 122 is the same.

[0050] In the embodiment of the application, the designer can adjust the specific shape structure of the test panel 100 according to the use requirement, which is not specifically limited herein.

[0051] In the embodiment of the application, as shown in the embodiment shown in Figure 3 and Figure 4 The battery measuring device further comprises a clamp base 200 and an air inlet structure 210 and an air outlet structure 220 arranged on the clamp base 200.

[0052] By detachably clamping the test panel 100 in the mounting groove 230 of the clamp base 200, the convenience of the installation of the test panel 100 is ensured, and the test panel 100 is convenient to maintain or replace.

[0053] And, the air inlet structure 210 and the air outlet structure 220 respectively communicate with two ends of each test flow channel 111, which ensures the uniform distribution of the gas in the whole flow channel system, avoids the performance fluctuation caused by the local airflow unevenness, improves the gas utilization efficiency, and further enhances the stability and reliability of the battery in the running state, thereby providing a solid guarantee for the efficient operation of the solid oxide fuel cell.

[0054] Specifically, one end of the test flow channel 111 is spaced apart from the side wall of the opposite mounting groove 230 to form a first gas passage 231, and the other end of the test flow channel 111 is spaced apart from the side wall of the opposite mounting groove 230 to form a second gas passage 232, and the gas inlet structure 210 includes a gas inlet communicating with the first gas passage 231, and the gas outlet structure 220 includes a gas outlet communicating with the second gas passage 232.

[0055] By spacing the test flow channel 111 from the side wall of the mounting groove 230, the first gas passage 231 and the second gas passage 232 are formed on both sides of the test flow channel 111, and the uniform introduction and discharge of the gas are realized by using the first gas passage 231 and the second gas passage 232, which significantly improves the smoothness and controllability of the gas flow. And because the gas passage does not need to add complex components, the overall structure is simplified, and the manufacturing difficulty and cost are reduced.

[0056] In the embodiments of the present application, as shown in the embodiment shown in Figure 3 The battery measurement device further includes a second lead-out structure 240 disposed on the clamp base 200, and the second lead-out structure 240 is used to lead out the signal acquisition line 20 from the clamp base 200.

[0057] By providing the second lead-out structure 240 on the clamp base 200, efficient lead-out and management of the signal acquisition line 20 are facilitated, ensuring that the signal acquisition line 20 can be safely and stably led out from the clamp base 200, avoiding signal interference or damage problems caused by messy lines.

[0058] Further, the signal acquisition line 20 is electrically connected between the first lead-out structure 130 and the second lead-out structure 240 by snap contact. By providing the signal acquisition line 20 in two sections and using snap contact to achieve signal transmission, the test panel 100 can be detachably clamped in the mounting groove 230 of the clamp base 200, and it is also convenient to provide a sealing structure, thereby avoiding the problem of gas leakage between the first lead-out structure 130 and the second lead-out structure 240.

[0059] When the signal acquisition line 20 is led out of the clamp base 200 through the second lead-out structure 240, the signal acquisition line 20 can be electrically connected with the signal processing module, and the signal processing software carried in the signal processing module is used to realize data processing operation.

[0060] In a specific embodiment, as shown in the embodiment shown in Figure 3 The second lead-out structure 240 includes at least one lead-out through hole 241 disposed on the side wall of the mounting groove 230, and the lead-out through hole 241 is located on the side wall of the mounting groove 230 that is in contact with the test panel 100.

[0061] By arranging the lead-through holes 241 on the side wall of the mounting groove 230 that is in contact with the test panel 100, not only can the space be effectively utilized, avoiding interference between the signal collection line 20 and other components, but also the sealing effect is guaranteed, and the overall compactness is improved.

[0062] Moreover, the number of lead-through holes 241 can be flexibly adjusted according to actual needs, thereby helping to enhance the adaptability and scalability of the clamp base 200. Preferably, the lead-through holes 241 are provided in a plurality, and the plurality of lead-through holes 241 are arranged at intervals.

[0063] In an embodiment of the present application, the test panel 100 is formed by a ceramic material. By forming the test panel 100 by a ceramic material, the stability and reliability of the test panel 100 in a high-temperature environment are significantly improved.

[0064] Specifically, the ceramic material has excellent high-temperature resistance, corrosion resistance, and insulation performance, and can effectively cope with the high-temperature environment generated during the operation of the solid oxide fuel cell, avoiding the performance degradation problem that may be caused by thermal expansion or chemical reaction of traditional materials.

[0065] Moreover, the high hardness and wear resistance of the ceramic material ensure the structural integrity of the test panel 100 in long-term use, prolonging the service life of the device. In addition, the forming process of the ceramic material is mature, and precise manufacturing of complex structures can be realized, providing greater flexibility for the design of the test flow channel 111 and other functional structures, thereby further optimizing the overall performance of the battery measurement device.

[0066] In an embodiment of the present application, the clamp base 200 is formed by a metal material. Preferably, the clamp base 200 is formed by a stainless steel material. The designer can adjust the composition of the stainless steel material according to the use needs, which is not specifically limited here. For example, the stainless steel material is one of SUS430S, US320, and Crofer22.

[0067] In an embodiment of the present application, the battery measurement device further comprises a sealing structure, the sealing structure comprising a first sealing layer for filling between the lead-through groove 131 and the signal collection line 20 and / or a second sealing layer for filling between the lead-through hole 241 and the signal collection line 20.

[0068] Preferably, the sealing structure comprises a first sealing layer for filling between the lead-through groove 131 and the signal collection line 20 and a second sealing layer for filling between the lead-through hole 241 and the signal collection line 20.

[0069] By arranging the first sealing layer between the lead-out groove 131 and the signal collection line 20 and the second sealing layer between the lead-out through hole 241 and the signal collection line 20, the leakage problem at the lead-out groove 131 and the lead-out through hole 241 is avoided, and the sealing performance and reliability of the battery measurement device are significantly improved.

[0070] In the embodiments of the present application, the first sealing layer is formed by a ceramic sealing glue; and / or, the second sealing layer is formed by a ceramic sealing glue. Preferably, the first sealing layer is formed by a ceramic sealing glue, and the second sealing layer is formed by a ceramic sealing glue.

[0071] The specific material of the first sealing layer and the second sealing layer can be adjusted by the designer according to the use needs, which is not specifically limited here. Preferably, the ceramic sealing glue is a high-temperature ceramic sealing glue. More preferably, the high-temperature ceramic sealing glue is an alkaline earth aluminosilicate, such as BaO-Al2O3-SiO2 (BAS) system, CaO-B2O3-SiO2 system, etc.

[0072] By using the ceramic sealing glue, especially the high-temperature ceramic sealing glue to form the sealing layer, the ceramic sealing glue can effectively cope with the high-temperature environment during the operation of the solid oxide fuel cell, prevent gas leakage or external impurities from entering, and thus ensure the sealing reliability. Moreover, the ceramic sealing glue has excellent corrosion resistance and insulation performance, further enhancing the adaptability in complex working conditions.

[0073] Of course, in other feasible embodiments, the designer can select different sealing materials according to actual needs, which is not specifically limited here.

[0074] In the embodiments of the present application, the hole diameter of the first mounting through hole 121 is 0.3mm to 0.7mm; and / or, the hole diameter of the second mounting through hole 122 is 0.3mm to 0.7mm.

[0075] Preferably, the hole diameter of the first mounting through hole 121 is 0.3mm to 0.7mm, and the hole diameter of the second mounting through hole 122 is 0.3mm to 0.7mm.

[0076] By limiting the hole diameter of the first mounting through hole 121 and the second mounting through hole 122 to the range of 0.3mm to 0.7mm, an optimal balance between the mounting precision and the structural stability is achieved. This hole diameter range can not only ensure that the signal collection line 20, the signal collection element 300 or other components can smoothly pass through, but also effectively avoid the problems of loose fixation caused by too large hole diameter or assembly difficulty caused by too small hole diameter.

[0077] More preferably, the first mounting through hole 121 has a hole diameter of 0.5 mm, and the second mounting through hole 122 has a hole diameter of 0.5 mm. When the hole diameters of the first mounting through hole 121 and the second mounting through hole 122 are both set to about 0.5 mm, the processing difficulty is reduced, and the assembly efficiency and stability are further improved.

[0078] Of course, in other feasible embodiments, the designer can adjust the hole diameters of the first mounting through hole 121 and the second mounting through hole 122 according to the use requirements, which are not specifically limited herein.

[0079] In the embodiments of the present application, the designer can adjust the specific number of test flow channels 111 according to the use requirements, which are not specifically limited herein. Preferably, the number of test flow channels 111 is 10 to 20.

[0080] In a feasible embodiment, the number of test flow channels 111 is 10. In another feasible embodiment, the number of test flow channels 111 is 15. In still another feasible embodiment, the number of test flow channels 111 is 20.

[0081] By limiting the number of test flow channels 111 to the range of 10 to 20, this number range not only ensures sufficient test point coverage to comprehensively evaluate the battery performance, but also avoids the problems of structural complexity and increased manufacturing cost caused by too many flow channels, thereby improving the universality and economy of the device.

[0082] Embodiment Two

[0083] Please refer to Figure 5 As shown in the figure, the embodiment of the present application provides a SOFC single cell measurement system, which includes two battery test devices as described in Embodiment One, and a plurality of signal acquisition elements 300. The two battery test devices are respectively abutted on both sides of the SOFC single cell 10, and each signal acquisition element 300 is arranged in the first mounting through hole 121 and / or the second mounting through hole 122 of the battery test device.

[0084] The specific structure, working principle and beneficial effects of the battery test device are the same as those in Embodiment One, and are not repeated here. Among them, the signal acquisition element 300 can be arranged in at least part of the first mounting through hole 121, or the signal acquisition element 300 can be arranged in at least part of the second mounting through hole 122, which are not specifically limited herein.

[0085] In the embodiments of the present application, the two battery test devices are symmetrically arranged on both sides of the SOFC single cell 10, one of which is abutted on the anode 12 of the SOFC single cell 10, and the other is abutted on the cathode 11 of the SOFC single cell 10.

[0086] In the embodiments of the present application, the signal collecting element 300 comprises one of a temperature signal K-type thermocouple, a current voltage signal collecting element and a gas signal collecting element.

[0087] The K-type thermocouple can acquire the temperature distribution of the battery in real time, the current voltage signal collecting element is used to accurately measure the electrochemical performance of the battery, and the gas signal collecting element can monitor the air intake and exhaust state of the battery.

[0088] The temperature signal K-type thermocouple, the current voltage signal collecting element and the gas signal collecting element are used in cooperation to realize accurate monitoring of the multi-dimensional performance parameters of the SOFC single cell 10. The temperature signal K-type thermocouple, the current voltage signal collecting element or the gas signal collecting element can be electrically connected to the signal processing module carrying the signal processing software through the signal collecting line 20.

[0089] The specific type and arrangement of the signal collecting element 300 can be determined by the designer according to the use requirement, and is not specifically limited here.

[0090] Preferably, at least part of the signal collecting element 300 is a temperature signal K-type thermocouple, at least part of the signal collecting element 300 is a current voltage signal collecting element, and at least part of the signal collecting element 300 is a gas signal collecting element.

[0091] The temperature signal K-type thermocouple, the current voltage signal collecting element or the gas signal collecting element are used in cooperation to more comprehensively acquire the key operating parameters of the SOFC single cell 10, thereby providing strong data support for the research and application of solid oxide fuel cells.

[0092] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of to describe combinations shall include the elements, ingredients, components or steps identified, and such other elements, ingredients, components or steps that do not materially affect the basic and novel characteristics of the combinations. The use of the terms "comprising" or "including" to describe combinations herein is also intended to cover embodiments consisting essentially of the elements, ingredients, components or steps. By use of the term "may" herein, it is intended that any property so described can or can not be present. Multiple elements, ingredients, components or steps can be provided by a single integrated element, ingredient, component or step. Alternatively, a single integrated element, ingredient, component or step might be divided into separate multiple elements, ingredients, components or steps. To "comprise" or "include" an element or list of elements means that the element or list of elements can be present, but does not exclude the presence of other elements or additional elements.

[0093] The various embodiments described in this specification are intended to be exemplary only. The scope of the application is therefore intended to be limited solely by the scope of the appended claims as also modified by the permissible equivalences and modifications set forth in the following clauses.

Claims

1. A battery measuring device, characterized by, The battery measurement device comprises: a test panel comprising a first end face and a second end face arranged oppositely; a flow channel structure comprising a plurality of parallel test flow channels arranged on the first end face, both ends of the test flow channels penetrating through the test panel, and the test panel between adjacent test flow channels forming a partition; an element mounting structure comprising a plurality of first mounting through holes arranged in at least part of the test flow channels and / or a plurality of second mounting through holes arranged on at least part of the partition; a first lead-out structure comprising at least one lead-out groove arranged on the second end face, one end of the lead-out groove extending to a side edge of the test panel, and the other end of the lead-out groove extending into the test panel, the lead-out groove being used for leading out a signal acquisition line from the test panel.

2. The battery measurement apparatus of claim 1, wherein The battery measurement device further comprises a clamp base, and an air inlet structure and an air outlet structure arranged on the clamp base, the clamp base being provided with a mounting groove, the test panel being detachably clamped in the mounting groove, the air inlet structure being communicated with one end of each test flow channel, and the air outlet structure being communicated with the other end of each test flow channel.

3. The battery measurement apparatus of claim 2, wherein One end of the test flow channel and the side wall of the opposite mounting groove are arranged to form a first gas channel, and the other end of the test flow channel and the side wall of the opposite mounting groove are arranged to form a second gas channel, the air inlet structure comprising a gas inlet communicated with the first gas channel, and the air outlet structure comprising a gas outlet communicated with the second gas channel.

4. The battery measurement apparatus of claim 2, wherein The battery measurement device further comprises a second lead-out structure arranged on the clamp base, the second lead-out structure being used for leading out a signal acquisition line from the clamp base.

5. The battery measurement apparatus of claim 4, wherein The second lead-out structure comprises at least one lead-out through hole arranged on the side wall of the mounting groove, the lead-out through hole being located on the side wall where the mounting groove and the test panel are connected.

6. The battery measurement apparatus of claim 5, wherein The battery measurement device further comprises a sealing structure comprising a first sealing layer for filling between the lead-out groove and the signal acquisition line and / or a second sealing layer for filling between the lead-out through hole and the signal acquisition line.

7. The battery measurement apparatus of claim 6, wherein The first sealing layer is formed by ceramic sealant; and / or, the second sealing layer is formed by ceramic sealant.

8. The battery measurement apparatus of claim 1, wherein, The test panel is formed by ceramic material.

9. The battery measurement apparatus of claim 1, wherein, The first mounting through hole has a hole diameter of 0.3mm to 0.7mm; and / or, the second mounting through hole has a hole diameter of 0.3mm to 0.7mm.

10. The battery measurement apparatus of claim 1, wherein, The test flow channel has a number of 10 to 20.

11. A SOFC cell measurement system characterized by, The battery measurement device comprises two battery measurement devices as claimed in any one of claims 1 to 10, and a plurality of signal acquisition elements, the two battery measurement devices being respectively abutted on two sides of the SOFC single cell, and each signal acquisition element being arranged in the first mounting through hole and / or the second mounting through hole of the battery measurement device.

12. The SOFC cell measurement system of claim 11, wherein, The signal acquisition element comprises one of a temperature signal K-type thermocouple, a current voltage signal acquisition element, and a gas signal acquisition element.

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