Solid oxide battery testing device supported by nested ceramic tube

Abstract

The utility model discloses a nested ceramic tube supported solid oxide battery testing device, which comprises a nested assembly, a metal vent valve, a stainless steel sealing block and a separation tube, the nested assembly comprises a ceramic inner tube and a ceramic outer tube, the ceramic inner tube is nested in the ceramic outer tube, one end of the ceramic inner tube and one end of the ceramic outer tube are air inlet positions, and the other end of the ceramic inner tube and the other end of the ceramic outer tube are testing positions. The metal vent valve is arranged on the air inlet position, a plurality of first through holes are formed in the stainless steel sealing block, each first through hole is used for being connected with a set of nesting assemblies in an inserted mode, the stainless steel sealing block is provided with a ceramic guide pipe used for being connected with an electrochemical testing work station, the partition pipe is detachably connected with the stainless steel sealing block, and the partition pipe is used for containing the testing position. An air inlet and an air outlet are formed in the partition pipe; the testing device is simple in design and easy to implement, can effectively solve the problems that an existing reversible solid oxide fuel cell testing device is high in cost and not beneficial to transportation, reduces the testing operation difficulty, and is high in testing efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to reversible solid oxide fuel cell technical field, concretely is a kind of nested ceramic tube support solid oxide cell testing device. BACKGROUND

[0002] Reversible solid oxide fuel cell (RSOC) integrates solid oxide fuel cell (SOFC) and solid oxide electrolytic cell (SOEC), can generate electricity with fuel in SOFC mode, and can produce hydrogen by electrolyzing water using excess power generated by waste heat and other renewable energy (such as solar energy, wind energy) in SOEC mode, without byproduct generation. Therefore, RSOC is considered as one of the most potential energy conversion devices to solve the problem of hydrogen production and power generation. In recent years, RSOC has attracted much attention due to its high conversion efficiency, cleanliness and other characteristics in hydrogen production and power generation. However, the reaction needs to be carried out at high temperature (500-1000℃) stage, and the reversible cell also requires different gases to be introduced into the anode and cathode, so there are high requirements for the stability and air tightness of the testing device.

[0003] The prior art patent document with the publication number CN219302346U provides a solid oxide electrolytic cell testing device, which can test the electrochemical performance of the electrolytic cell such as power curve, and can also perform life test in various modes such as constant voltage, constant current and constant power, to realize real-time testing of electrolytic performance under different working conditions. However, the testing device required by CN219302346U technology has high cost, complex equipment and large size, which is not conducive to carrying and transportation, and the operation during testing is also complex, with low testing efficiency. Therefore, the utility model provides a nested ceramic tube support solid oxide cell testing device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of nested ceramic tube support solid oxide cell testing device to solve the problems raised in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of nested ceramic tube support solid oxide cell testing device, comprising:

[0006] The nested assembly includes a ceramic inner tube and a ceramic outer tube. The ceramic inner tube is nested in the ceramic outer tube. One end of the ceramic inner tube and the ceramic outer tube is the gas inlet position, and the other end is the testing position. The testing position is used to place the battery to be tested.

[0007] A metal breather valve is arranged at the gas inlet position. The inlet of the metal breather valve is connected with the ceramic inner tube, and the outlet of the metal breather valve is connected with the ceramic outer tube.

[0008] A stainless steel sealing block, a plurality of first through holes are formed on the stainless steel sealing block, each of the first through holes is used for inserting a set of the nested assembly, and a ceramic conduit for connecting an electrochemical test workstation is arranged on the stainless steel sealing block.

[0009] A partition pipe is detachably connected with the stainless steel sealing block, the partition pipe is used for containing the test sites, and the partition pipe is provided with an air inlet and an air outlet.

[0010] As a preferred technical solution, the metal air inlet valve is brazed with the ceramic inner pipe and the ceramic outer pipe.

[0011] As a preferred technical solution, a filter screen is arranged in the partition pipe and located in front of the test sites, and is used for filtering the gas entering the partition pipe.

[0012] As a preferred technical solution, a ceramic plate is further included, a plurality of second through holes are formed on the ceramic plate, and a set of the nested assembly inserted in one of the first through holes passes through one of the second through holes.

[0013] As a preferred technical solution, the first through holes are filled with sealing glue in contact with the ceramic outer pipe.

[0014] As a preferred technical solution, an inner threaded section is arranged on the stainless steel sealing block, and an outer threaded section matched with the inner threaded section is arranged on the partition pipe.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] By arranging a plurality of sets of nested assemblies on the stainless steel sealing block, a plurality of fuel cells can be simultaneously tested, the test device is simple in design and easy to implement, can effectively solve the problems of high cost and poor transportation of the existing reversible solid oxide fuel cell test device, and reduces the difficulty of test operation and improves the test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a whole structure schematic view of the utility model;

[0018] Fig. 2 It is a connection relationship schematic view of the nested assembly, the stainless steel sealing block and the ceramic plate of the utility model;

[0019] Fig. 3 It is a partition pipe structure schematic view of the utility model;

[0020] In the figure: 1, metal vent valve; 2, ceramic inner tube; 3, ceramic outer tube; 4, ceramic guide pipe; 5, stainless steel sealing block; 51, first through hole; 6, ceramic plate; 61, second through hole; 7, partition pipe; 71, air inlet; 72, air outlet; 8, filter screen; 9, inner threaded section; 10, outer threaded section. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figs. 1-3

[0023] Embodiment 1 provides a nested ceramic tube supporting solid oxide cell testing device:

[0024] The nested assembly comprises a ceramic inner tube 2 and a ceramic outer tube 3, the ceramic inner tube 2 is nested in the ceramic outer tube 3, one end of the ceramic inner tube 2 and the ceramic outer tube 3 is an air inlet position, and the other end is a testing position, the testing position is used for placing a battery to be tested, and the ceramic inner tube 2 is retracted into the ceramic outer tube 3 at the testing position.

[0025] The metal vent valve 1 is arranged at the air inlet position, the metal vent valve is brazed and connected with the ceramic inner tube 2 and the ceramic outer tube 3, so as to ensure the air tightness of the connection; the inlet of the metal vent valve 1 is communicated with the ceramic inner tube 2, the outlet of the metal vent valve 1 is communicated with the ceramic outer tube 3, before venting, the protective gas can be first delivered to the ceramic inner tube 2 through the inlet of the metal vent valve 1, the protective gas enters the ceramic outer tube 3 through the ceramic inner tube 2, and finally is discharged through the outlet of the metal vent valve, so as to discharge the air in the interior.

[0026] A plurality of first through holes 51 are formed in the stainless steel sealing block 5, each first through hole 51 is used for inserting a set of nested assembly, and the stainless steel sealing block 5 is provided with a ceramic guide pipe 4 used for connecting an electrochemical testing work station, the ceramic guide pipe 4 has a wire, the wire can be connected with the electrochemical testing work station and the battery to be tested, and the wire is in a disconnected state with the electrochemical testing work station when the testing is not performed.

[0027] The partition pipe 7 is detachably connected with the stainless steel sealing block 5, the stainless steel sealing block 5 is provided with an inner threaded section 9, the partition pipe 7 is provided with an outer threaded section 10 matched with the inner threaded section 9, the partition pipe 7 is used for containing the testing position, and the partition pipe 7 is provided with an air inlet 71 and an air outlet 72, and the partition pipe 7 is a glass pipe.

[0028] Embodiment 2 provides a nested ceramic tube supporting solid oxide battery testing device:

[0029] The nested assembly includes a ceramic inner tube 2 and a ceramic outer tube 3, the ceramic inner tube 2 is nested in the ceramic outer tube 3, one end of the ceramic inner tube 2 and the ceramic outer tube 3 is the gas inlet position, and the other end is the testing position for placing the battery to be tested, and the ceramic inner tube 2 is retracted into the ceramic outer tube 3 at the testing position.

[0030] The metal vent valve 1 is arranged at the gas inlet position, the metal gas inlet valve is brazed and connected with the ceramic inner tube 2 and the ceramic outer tube 3, and the air tightness of the connection is ensured; the inlet of the metal vent valve 1 is communicated with the ceramic inner tube 2, the outlet of the metal vent valve 1 is communicated with the ceramic outer tube 3, before venting, the protective gas can be first delivered to the ceramic inner tube 2 through the inlet of the metal vent valve 1, the protective gas enters the ceramic outer tube 3 through the ceramic inner tube 2, and finally is discharged through the outlet of the metal vent valve, so that the internal air is discharged.

[0031] A plurality of first through holes 51 are formed in the stainless steel sealing block 5, each first through hole 51 is used for inserting a set of nested assemblies, and the stainless steel sealing block 5 is provided with a ceramic conduit 4 for connecting an electrochemical test workstation, the ceramic conduit 4 has a wire, the wire can be connected with the electrochemical test workstation and the battery to be tested, and the wire is in a disconnected state with the electrochemical test workstation when the test is not performed.

[0032] The partition tube 7 is detachably connected with the stainless steel sealing block 5, the stainless steel sealing block 5 is provided with an internal thread section 9, the partition tube 7 is provided with an external thread section 10 matched with the internal thread section 9, the partition tube 7 is used for containing the testing position, and the partition tube 7 is provided with a gas inlet 71 and a gas outlet 72, and the partition tube 7 is a glass tube.

[0033] A plurality of second through holes 61 are formed in the ceramic plate 6, a set of nested assemblies inserted in one first through hole 51 passes through one second through hole 61, and each first through hole 51 is filled with sealing glue in contact with the ceramic outer tube 3, and the nested assembly is stably supported by the cooperation of the ceramic plate 6 and the stainless steel sealing block 5.

[0034] Embodiment 3 provides a nested ceramic tube supporting solid oxide battery testing device:

[0035] The nested assembly includes a ceramic inner tube 2 and a ceramic outer tube 3, the ceramic inner tube 2 is nested in the ceramic outer tube 3, one end of the ceramic inner tube 2 and the ceramic outer tube 3 is the gas inlet position, and the other end is the testing position for placing the battery to be tested, and the ceramic inner tube 2 is retracted into the ceramic outer tube 3 at the testing position.

[0036] The metal vent valve 1 is arranged at the air inlet position, and the metal air inlet valve is brazed with the ceramic inner tube 2 and the ceramic outer tube 3 to ensure the air tightness of the connection; the inlet of the metal vent valve 1 is connected with the ceramic inner tube 2, and the outlet of the metal vent valve 1 is connected with the ceramic outer tube 3; before venting, the protective gas can be first delivered to the ceramic inner tube 2 through the inlet of the metal vent valve 1, the protective gas enters the ceramic outer tube 3 through the ceramic inner tube 2, and finally is discharged through the outlet of the metal vent valve, so that the air in the inside is discharged.

[0037] A plurality of first through holes 51 are formed in the stainless steel sealing block 5, each first through hole 51 is used for inserting a set of nested components, and the stainless steel sealing block 5 is provided with a ceramic guide pipe 4 for connecting an electrochemical test workstation, the ceramic guide pipe 4 has a wire, the wire can be connected with the electrochemical test workstation and the battery to be tested, and the wire is disconnected with the electrochemical test workstation when the test is not performed.

[0038] The partition tube 7 is detachably connected with the stainless steel sealing block 5, the stainless steel sealing block 5 is provided with an internal thread section 9, the partition tube 7 is provided with an external thread section 10 matched with the internal thread section 9, the partition tube 7 is used for containing the test position inside, and the partition tube 7 is provided with an air inlet 71 and an air outlet 72, and the partition tube 7 is a glass tube.

[0039] A filter screen 8 is arranged in the partition tube 7, and the filter screen 8 is located at the front side of the test position and is used for filtering the gas entering the partition tube 7.

[0040] Working principle:

[0041] Before testing the battery, the battery with the current collector layer and the wire coated on both sides is sealed in the test position by high-temperature sealing glue, the wire is connected with the wire of the ceramic guide pipe 4, the connected battery packaging device is placed in the partition tube 7, and the whole is placed in a test furnace for heating, after reaching the test temperature, the argon or nitrogen gas interface is connected to the inlet of the metal vent valve 1, and after the air is exhausted;

[0042] When testing the battery, the wire of the ceramic guide pipe 4 is connected with the electrochemical test workstation, the interface of the required fuel gas is switched to the inlet of the metal vent valve 1, if another gas needs to be introduced on the other side of the battery, it can be introduced through the inlet of the partition tube 7, so that the test of different atmospheres on both sides is realized, after the test is completed, the venting is stopped, after cooling, the battery packaging device is taken out, the high-temperature sealing glue is removed, and the battery is taken down, so that the battery can be resealed and tested.

[0043] By arranging a plurality of nested components on the stainless steel sealing block 5, a plurality of fuel cells can be tested at the same time, the test device is simple in design and easy to realize, can effectively solve the problems of high cost and poor transportation of the existing reversible solid oxide fuel cell test device, and reduces the test operation difficulty and the test efficiency.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nested ceramic tube support solid oxide cell testing device, characterized by, The utility model relates to a kind of electrochemical test workstations, including: Nested components, including ceramic inner tube and ceramic outer tube, the ceramic inner tube is nested in the ceramic outer tube, one end of the ceramic inner tube and the ceramic outer tube is air inlet position, the other end is test position, the test position is used to place battery to be measured; Metal air valve is arranged on the air inlet position, the inlet of the metal air valve is communicated with the ceramic inner tube, and the outlet of the metal air valve is communicated with the ceramic outer tube; Stainless steel sealing block, a plurality of first through holes are formed on the stainless steel sealing block, each first through hole is used for inserting a group of nested components, and ceramic guide pipe for connecting electrochemical test workstation is arranged on the stainless steel sealing block; Pipe is detachably connected with the stainless steel sealing block, the pipe is used to contain the test position, and air inlet and air outlet are arranged on the pipe.

2. The nested ceramic tube supported solid oxide cell test device of claim 1, wherein, The metal air valve is brazed with the ceramic inner tube and the ceramic outer tube.

3. The nested ceramic tube supported solid oxide cell test device of claim 1, wherein, A filter screen is arranged in the pipe, and the filter screen is located in front of the test position to filter the gas entering the pipe.

4. The nested ceramic tube supported solid oxide cell test device of claim 1, wherein, It also includes a ceramic plate, a plurality of second through holes are formed on the ceramic plate, and a group of nested components inserted into one first through hole passes through one second through hole.

5. The nested ceramic tube supported solid oxide cell test device of claim 4, wherein, Each first through hole is filled with sealing glue in contact with the ceramic outer tube.

6. The nested ceramic tube supported solid oxide cell test device of claim 1, wherein, An internal thread section is arranged on the stainless steel sealing block, and an external thread section matched with the internal thread section is arranged on the pipe.

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