Gas diffusion type flow cell device

Abstract

The application discloses a gas diffusion type flow electrolytic cell device, which comprises a cathode gas pool, a working electrode and a cathode liquid pool arranged in sequence, a first boss is arranged on the cathode gas pool, a first gas chamber is formed by hollowing out the middle of the first boss, a first pit is arranged on the cathode liquid pool, a first liquid chamber is formed by hollowing out the middle of the first pit, the first pit is matched with the first boss, and the working electrode is arranged between the first boss and the first pit. When the cathode gas pool and the cathode liquid pool are in a working state, reaction gas enters the cathode gas pool from the inlet of the cathode gas pool and flows out from the outlet of the cathode gas pool, cathode electrolyte enters the cathode liquid pool from the inlet of the cathode liquid pool and flows out from the outlet of the cathode liquid pool, the cathode gas pool and the cathode liquid pool clamp the working electrode, the first boss is matched with the first pit, the working electrode is tightly combined with the first gas chamber and the first liquid chamber, electric contact of the working electrode is provided, and liquid contact resistance error can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrolytic cell devices, and more particularly, to a gas diffusion type flow electrolytic cell device. BACKGROUND

[0002] Currently, the gas diffusion type flow electrolytic cell is mainly borrowed from the field of fuel cells, and has not been further optimized in terms of electrode area definition, etc., so there are usually problems of poor measurement accuracy and efficiency.

[0003] Therefore, in the gas diffusion type flow electrolytic cell device, how to reduce the liquid junction resistance error is a technical problem that technicians in the field are eager to solve. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a gas diffusion type flow electrolytic cell device that can reduce liquid junction resistance error.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following solutions:

[0006] A gas diffusion type flow electrolytic cell device, comprising oppositely arranged cathode assembly and anode assembly, the cathode assembly comprising cathode gas cell, working electrode and cathode liquid cell arranged in sequence, wherein:

[0007] The first boss is arranged on the cathode gas cell, and a first gas chamber is formed by hollowing out the middle of the first boss;

[0008] A first recess is arranged on one side of the cathode liquid cell close to the first gas chamber, the first recess is matched with the first boss, and a first liquid chamber is formed by hollowing out the middle of the first recess;

[0009] The working electrode is arranged between the first boss and the first recess;

[0010] When the cathode gas cell and the cathode liquid cell are in working state, the first boss and the first recess are clamped.

[0011] Preferably, in the above-mentioned gas diffusion type flow electrolytic cell device, the anode assembly comprises a proton exchange membrane, an anode liquid cell, a counter electrode and an anode end cover, wherein:

[0012] A second recess is arranged on one side of the anode liquid cell away from the first recess, and a second liquid chamber is formed by hollowing out the middle of the second recess;

[0013] The proton exchange membrane is arranged between the cathode liquid cell and the anode liquid cell;

[0014] A second boss is arranged on one side of the anode end cover close to the second liquid chamber, the second boss is matched with the second recess, and a second gas chamber is formed by hollowing out the middle of the second boss;

[0015] The counter electrode is disposed between the second protrusion and the second recess;

[0016] The second protrusion and the second recess are clamped when the anode liquid pool is in working condition.

[0017] Preferably, in the gas diffusion type flow electrolysis cell device, the first gas inlet of the cathode gas pool and the first gas outlet of the cathode gas pool are disposed on the opposite two sides of the cathode gas pool and communicate with the first gas chamber;

[0018] The first liquid outlet of the cathode liquid pool and the first liquid inlet of the cathode liquid pool are disposed on the adjacent two sides of the cathode liquid pool and communicate with the first liquid chamber;

[0019] The reference electrode port of the cathode liquid pool is disposed on the side opposite to the first liquid inlet of the cathode liquid pool and communicates with the first liquid chamber;

[0020] The second gas inlet of the anode gas pool and the second gas outlet of the anode gas pool are disposed on the opposite two sides of the anode gas pool and communicate with the second gas chamber;

[0021] The second liquid outlet of the anode liquid pool and the second liquid inlet of the anode gas pool are disposed on the adjacent two sides of the anode liquid pool and communicate with the second liquid chamber.

[0022] Preferably, in the gas diffusion type flow electrolysis cell device, the first liquid outlet of the cathode liquid pool communicates with the first liquid chamber through a first internal channel;

[0023] The first liquid inlet of the cathode liquid pool communicates with the first liquid chamber through a second internal channel;

[0024] The second liquid outlet of the anode liquid pool communicates with the second liquid chamber through a third internal channel;

[0025] The second liquid inlet of the anode liquid pool communicates with the second liquid chamber through a fourth internal channel.

[0026] Preferably, in the gas diffusion type flow electrolysis cell device, the cross section of the first internal channel gradually decreases from the first liquid chamber to the first liquid outlet of the cathode liquid pool;

[0027] and / or

[0028] The cross section of the second internal channel gradually decreases from the first liquid chamber to the first liquid inlet of the cathode liquid pool;

[0029] The cross section of the third internal channel gradually decreases from the second liquid chamber to the second liquid outlet of the anode liquid pool;

[0030] and / or

[0031] The cross section of the fourth internal channel gradually decreases from the second liquid chamber to the second liquid inlet of the anode liquid pool.

[0032] Preferably, in the gas diffusion type flow electrolysis cell device, the cathode gas pool is further provided with a first through hole penetrating through the end face of the cathode gas pool away from the cathode liquid pool and the raised surface of the first boss;

[0033] The anode end cover is further provided with a second through hole penetrating through the end face of the anode end cover away from the anode liquid pool and the raised surface of the second boss.

[0034] Preferably, in the gas diffusion type flow electrolysis cell device, a first metal wire and a second metal wire are further included, the first metal wire passing through the first through hole to contact the working electrode to form a working electrode wire;

[0035] The second metal wire passes through the second through hole to contact the counter electrode to form a counter electrode wire.

[0036] Preferably, in the gas diffusion type flow electrolysis cell device, the cathode gas pool and the cathode liquid pool are connected together by a first bolt;

[0037] And / or

[0038] The anode end cover and the anode liquid pool are connected together by a second bolt;

[0039] And / or

[0040] The cathode liquid pool and the anode liquid pool are connected together by a third bolt.

[0041] Preferably, in the gas diffusion type flow electrolysis cell device, a first groove, a second groove, a third groove, a fourth groove and a sealing O-ring are further included, wherein:

[0042] The first groove is annularly arranged outside the raised part of the first boss;

[0043] The second groove is annularly arranged on the end face of the cathode liquid pool close to the anode liquid pool corresponding to the first liquid chamber;

[0044] The third groove is annularly arranged on the end face of the anode liquid pool close to the cathode liquid pool corresponding to the second liquid chamber;

[0045] The fourth groove is annularly arranged outside the raised part of the second boss;

[0046] The sealing O-ring is arranged inside the first groove, the second groove, the third groove and the fourth groove for clamping the working electrode, the proton exchange membrane and the counter electrode.

[0047] Preferably, in the gas diffusion type flow electrolytic cell device, the first boss and the first pit are rectangular structures; and / or the second boss and the second pit are rectangular structures.

[0048] The gas diffusion type flow electrolytic cell device provided by the application comprises a cathode gas pool, a working electrode and a cathode liquid pool arranged in sequence, the cathode gas pool is provided with a first boss, the first boss is hollowed in the middle to form a first gas chamber, the cathode liquid pool is provided with a first pit, the first pit is hollowed in the middle to form a first liquid chamber, the first pit is matched with the first boss, and the working electrode is arranged between the first boss and the first pit. When the cathode gas pool and the cathode liquid pool are in a working state, the cathode gas pool and the cathode liquid pool clamp the working electrode, the first boss is matched with the first pit, the working electrode is closely attached to the first gas chamber and the first liquid chamber, and the liquid junction resistance error can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without any inventive labor.

[0050] Figure 1 is a structural schematic diagram of the gas diffusion type flow electrolytic cell device provided by the embodiment of the application;

[0051] Figure 2 is a structural schematic diagram of the cathode gas pool provided by the embodiment of the application;

[0052] Figure 3 is a structural schematic diagram of the cathode liquid pool provided by the embodiment of the application;

[0053] Figure 4 is a structural schematic diagram of the anode liquid pool provided by the embodiment of the application;

[0054] Figure 5 is a structural schematic diagram of the anode end cover provided by the embodiment of the application;

[0055] Figure 6 is a structural schematic diagram of the gas diffusion type flow electrolytic cell device in a fastened and installed state provided by the embodiment of the application;

[0056] Figure 7 is a structural schematic diagram of the internal channel of the cathode liquid pool provided by the embodiment of the application;

[0057] Figure 8 is a structural schematic diagram of the internal channel of the anode liquid pool provided by the embodiment of the application.

[0058] Wherein, the cathode gas pool 100, the first boss 101, the first groove 1011, the first gas chamber 102, the first through hole 103, the first gas inlet 104, the first gas outlet 105, the working electrode 200, the cathode liquid pool 300, the first recess 301, the first liquid chamber 302, the second groove 303, the first liquid outlet 304, the first liquid inlet 305, the reference electrode port 306, the proton exchange membrane 400, the anode liquid pool 500, the second recess 501, the second liquid chamber 502, the third groove 503, the second liquid outlet 504, the second liquid inlet 505, the counter electrode 600, the anode end cover 700, the second boss 701, the fourth groove 7011, the second gas chamber 702, the second through hole 703, the second gas inlet 704, the second gas outlet 705, the first internal channel 800, the second internal channel 801, the third internal channel 802, the fourth internal channel 803, the first bolt 900, the second bolt 901, the third bolt 902. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. Figures 1-8 The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application.

[0060] In the description of the present application, it should be understood that the terms "upper", "lower", "top surface", "bottom surface" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the position or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0061] In combination with the above Figures 1-8As shown, the application provides a gas diffusion type flow electrolysis cell device, comprising oppositely arranged cathode assembly and anode assembly, the cathode assembly comprises cathode gas pool 100, working electrode 200 and cathode liquid pool 300 arranged in sequence, wherein: the first boss 101 is arranged on the cathode gas pool 100, the first boss 101 is hollowed in the middle to form the first gas chamber 102, the first recess 301 is arranged on one side of the cathode liquid pool 300 close to the first gas chamber 102, the first recess 301 is matched with the first boss 101, the first recess 301 is hollowed in the middle to form the first liquid chamber 302, the working electrode 200 is arranged between the first boss 101 and the first recess 301, and when the cathode gas pool 100 and the cathode liquid pool 300 are in working state, the first boss 101 and the first recess 301 are clamped.

[0062] The gas diffusion type flow electrolysis cell device provided by the application, when in use, the reaction gas enters from the inlet of the cathode gas pool 100 and flows out from the outlet of the cathode gas pool 100, the cathode electrolyte enters from the inlet of the cathode liquid pool 300 and flows out from the outlet of the cathode liquid pool 300, the working electrode 200 is arranged between the cathode gas pool 100 and the cathode liquid pool 300, and the working electrode 200 is clamped by the first boss 101 and the first recess 301, so that the working electrode 200 is closely attached to the first gas chamber 102 and the first liquid chamber 302, and the working electrode 200 is provided with electrical contact, thereby effectively reducing the liquid contact resistance error.

[0063] Further, the anode assembly comprises proton exchange membrane 400, anode liquid pool 500, counter electrode 600 and anode end cover 700, wherein the second recess 501 is arranged on one side of the anode liquid pool 500 away from the first recess 301, the second recess 501 is hollowed in the middle to form the second liquid chamber 502, the proton exchange membrane 400 is arranged between the cathode liquid pool 300 and the anode liquid pool 500, the second boss 701 is arranged on one side of the anode end cover 700 close to the second liquid chamber 502, the second boss 701 is matched with the second recess 501, the second boss 701 is hollowed in the middle to form the second gas chamber 702, the counter electrode 600 is arranged between the second boss 701 and the second recess 501, when the anode liquid pool 500 is in working state, the anode electrolyte enters from the inlet of the anode liquid pool 500 and flows out from the outlet of the anode liquid pool 500, the second boss 701 and the second recess 501 clamp the counter electrode 600, the second gas chamber 702 is closely attached to the second liquid chamber 502, and the counter electrode 600 is provided with electrical contact, thereby effectively reducing the liquid contact resistance error.

[0064] It can be understood that the first recess 301 corresponds to the position of the second recess 501, the first recess 301 is used to accommodate the first boss 101, the first liquid chamber 302 is used to accommodate the cathode side electrolyte, the second recess 501 is used to accommodate the second boss 701, and the second liquid chamber 502 is used to accommodate the anode side electrolyte. In order to ensure that the concave-convex structure is stable and not easy to deviate, the shape and size of the first recess 301 are adapted to the first boss 101, the shape and size of the second recess 501 are adapted to the second boss 701, and the proton exchange membrane 400 is arranged between the first recess 301 and the second recess 501, so as to ensure the working efficiency of the proton exchange membrane 400.

[0065] In order to optimize the above technical solution, the gas inlet 104 of the cathode gas pool 100 and the gas outlet 105 of the cathode gas pool 100 are arranged on the opposite two sides of the cathode gas pool 100 and are in communication with the first gas chamber 102. The first liquid outlet 304 of the cathode liquid pool 300 and the first liquid inlet 305 of the cathode liquid pool 300 are arranged on the adjacent two sides of the cathode liquid pool 300 and are in communication with the first liquid chamber 302. The reference electrode port 306 of the cathode liquid pool 300 is arranged on the side opposite to the first liquid inlet 305 of the cathode liquid pool 300 and is in communication with the first liquid chamber 302. The second gas inlet 704 of the anode end cover 700 and the second gas outlet 705 of the anode end cover 700 are arranged on the opposite two sides of the anode end cover 700 and are in communication with the second gas chamber 702. The second liquid outlet 504 of the anode liquid pool 500 and the second liquid inlet 505 of the anode liquid pool 500 are arranged on the adjacent two sides of the anode liquid pool 500 and are in communication with the second liquid chamber 502.

[0066] The reference electrode is inserted into the reference electrode port 306. Due to the boss design of the cathode gas pool 100, the reference electrode tip in the solution is directly close to the working electrode 200, so that the distance between the reference electrode and the working electrode 200 is very close, which can effectively reduce the solution liquid junction resistance voltage drop loss and effectively reduce the liquid junction resistance error.

[0067] In order to optimize the above technical solution, the inside of the cathode liquid pool 300 and the anode liquid pool 500 is further provided with an internal channel, the internal channel is in communication with the first liquid chamber 302 and the second liquid chamber 502, and the internal channel is used for passing liquid. Specifically, the first liquid outlet 304 of the cathode liquid pool 300 is in communication with the first liquid chamber 302 through the first internal channel 800. The first liquid inlet 305 of the cathode liquid pool 300 is in communication with the first liquid chamber 302 through the second internal channel 801. The second liquid outlet 504 of the anode liquid pool 500 is in communication with the second liquid chamber 502 through the third internal channel 802. The second liquid inlet 505 of the anode liquid pool 500 is in communication with the second liquid chamber 502 through the fourth internal channel 803.

[0068] To optimize the above technical solutions, the internal channels have a gradually converging structure, which can effectively prevent the accumulation of gas generated during the reaction in the corners to form dead space and interfere with the measurement results. Specifically, the cross section of the first internal channel 800 gradually decreases from the first liquid chamber 302 to the first liquid outlet 304 of the cathode liquid pool 300, and / or the cross section of the second internal channel 801 gradually decreases from the first liquid chamber 302 to the first liquid inlet 305 of the cathode liquid pool 300, and / or the cross section of the third internal channel 802 gradually decreases from the second liquid chamber 502 to the second liquid outlet 504 of the anode liquid pool 500, and / or the cross section of the fourth internal channel 803 gradually decreases from the second liquid chamber 502 to the second liquid inlet 505 of the anode liquid pool 500.

[0069] Further, in the above cross section, the maximum cross section of the first internal channel 800 is less than or equal to the cross section of the first liquid chamber 302, and the minimum cross section of the first internal channel 800 is greater than or equal to the cross section of the first liquid outlet 304 of the cathode liquid pool 300, and / or the maximum cross section of the second internal channel 801 is less than or equal to the cross section of the first liquid chamber 302, and the minimum cross section of the second internal channel 801 is greater than or equal to the cross section of the first liquid inlet 305 of the cathode liquid pool 300, and / or the maximum cross section of the third internal channel 802 is less than or equal to the cross section of the second liquid chamber 502, and the minimum cross section of the third internal channel 802 is greater than or equal to the cross section of the second liquid outlet 504 of the anode liquid pool 500, and / or the maximum cross section of the fourth internal channel 803 is less than or equal to the cross section of the second liquid chamber 502, and the minimum cross section of the fourth internal channel 803 is greater than or equal to the cross section of the second liquid inlet 505 of the anode liquid pool 500.

[0070] Further, to reduce the internal space of the cathode liquid pool 300 and / or the anode liquid pool 500 occupied by the internal channels, part of the cross section of the internal channels is designed as a trapezoidal shape, and the upper base of the trapezoidal shape is extended to the first liquid outlet 304, and / or the first liquid inlet 305, and / or the second liquid outlet 504, and / or the second liquid inlet 505, and the lower base of the trapezoidal shape is connected to the cathode liquid pool 300 and / or the anode liquid pool 500.

[0071] To optimize the above technical solutions, the cathode gas pool 100 is further provided with a first through hole 103, which penetrates the end face of the cathode gas pool 100 away from the cathode liquid pool 300 and the raised surface of the first boss 101, and the anode end cover 700 is further provided with a second through hole 703, which penetrates the end face of the anode end cover 700 away from the anode liquid pool 500 and the raised surface of the second boss 701. One end of the first through hole 103 is in contact with the working electrode 200 for forming a working electrode 200 wiring, and one end of the second through hole 703 is in contact with the counter electrode for forming a counter electrode 600 wiring.

[0072] In order to optimize the above technical solutions, the first metal wire and the second metal wire are further included, the first metal wire is in contact with the working electrode 200 through the first through hole 103 to form a working electrode wire, and the second metal wire is in contact with the counter electrode 600 through the second through hole 703 to form a counter electrode 600 wire. After the first metal wire is inserted into the first through hole 103, the first metal wire is sealed with glue, and after the second metal wire is inserted into the second through hole 703, the second metal wire is sealed with glue.

[0073] It can be understood that the first through hole 103 is a pair of small size through holes, the first metal wire is two independent metal wires, and the first metal wire is in contact with the working electrode 200 and is in conductive connection with each other. On the outside of the cathode gas pool 100, the first metal wire can be measured by connecting the first metal wire through the resistance scale of the multimeter, so as to determine whether the first metal wire forms good electrical contact with the working electrode 200. Similarly, the second through hole 703 is a pair of small size through holes, the second metal wire is two independent metal wires, and the second metal wire is in contact with the counter electrode 600 and is in conductive connection with each other. On the outside of the anode end cover 700, the second metal wire can be measured by connecting the second metal wire through the resistance scale of the multimeter, so as to determine whether the second metal wire forms good electrical contact with the counter electrode 600. In the working process of the gas diffusion type flow electrolysis cell device, there is a possibility of potential electrical contact separation, and the design of the two metal wires can better determine whether electrical contact separation occurs. In addition, the first metal wire and the second metal wire can cooperate with the multimeter to test the contact conductivity with the outside world, and also avoid the generation of poor contact of the gas diffusion type flow electrolysis cell device, improve the safety, and effectively reduce the liquid resistance error.

[0074] In order to optimize the above technical solutions, the cathode gas pool 100, the cathode liquid pool 300, the anode end cover 700 and the anode liquid pool 500 are connected by bolts. Specifically, the cathode gas pool 100 and the cathode liquid pool 300 are connected together by the first bolt 900; and / or, the anode end cover 700 and the anode liquid pool 500 are connected together by the second bolt 901; and / or, the cathode liquid pool 300 and the anode liquid pool 500 are connected together by the third bolt 902. The bolt connection design of the cathode gas pool 100, the cathode liquid pool 300, the anode end cover 700 and the anode liquid pool 500 can make it only disassemble a single side electrode or only replace the proton exchange membrane 400 when replacing the test sample, so as to improve the working efficiency of the gas diffusion type flow electrolysis cell device. For example, the cathode gas pool 100 and the cathode liquid pool 300 are disassembled by disassembling the first bolt 900, the anode end cover 700 and the anode liquid pool 500 are disassembled by disassembling the second bolt 901, and the cathode liquid pool 300 and the anode liquid pool 500 are disassembled by disassembling the third bolt 902.

[0075] Further, the cathode gas pool 100 and the cathode liquid pool 300 are arranged with first bolt holes matched with the first bolt 900, the anode end cover 700 and the anode liquid pool 500 are arranged with second bolt holes matched with the second bolt 901, and the cathode liquid pool 300 and the anode liquid pool 500 are arranged with third bolt holes matched with the third bolt 902. The first bolt holes, the second bolt holes and the third bolt holes are uniformly distributed.

[0076] In order to optimize the above technical solution, the first bolt 900 is an external hexagonal bolt, and the corresponding first bolt hole is a through hole with a hexagonal countersunk head structure, used for accommodating the external hexagonal bolt and preventing the external hexagonal bolt from rotating, and the first bolt 900 is matched with the first bolt hole to fasten the cathode gas pool 100 and the cathode liquid pool 300. The second bolt 901 is an external hexagonal bolt, and the corresponding second bolt hole is a through hole with a hexagonal countersunk head structure, used for accommodating the external hexagonal bolt and preventing the external hexagonal bolt from rotating, and the second bolt 901 is matched with the second bolt hole to fasten the anode end cover 700 and the anode liquid pool 500.

[0077] In order to optimize the above technical solution, a first groove 1011 is annularly arranged outside the protruding part of the first boss 101, a second groove 303 is annularly arranged on the end face of the cathode liquid pool 300 close to the anode liquid pool 500 and corresponding to the first liquid chamber 302, a third groove 503 is annularly arranged on the end face of the anode liquid pool 500 close to the cathode liquid pool 300 and corresponding to the second liquid chamber 502, and a fourth groove 7011 is annularly arranged outside the protruding part of the second boss 701. The first groove 1011, the second groove 303, the third groove 503 and the fourth groove 7011 are used for placing sealing O-rings, and the sealing O-rings are used for clamping the working electrode 200, the proton exchange membrane 400 and the counter electrode 600. The sealing method using the sealing O-rings can make the compression degree of the cathode liquid pool 300 and the anode liquid pool 500 consistent, and can effectively avoid the problem of liquid leakage or gas leakage when the ion exchange membrane 400 is used alone. In addition, in the prior art, there is a method of face sealing using a rubber pad. When the rubber pad is used for face sealing, as the rubber pad is compressed, the rubber pad will be extruded to form many small pore diameters, reducing the sealing effect. Therefore, the use of the sealing O-rings for linear sealing can avoid the above situation, and the sealing effect of the sealing O-rings is better than that of the rubber pad.

[0078] In order to optimize the above technical solutions, the first boss 101 and the first recess 301 are in a rectangular structure, and / or the second boss 701 and the second recess 501 are in a rectangular structure. The working electrode 200 is pressed by the cooperation of the first boss 101 and the first recess 301, and the working electrode is provided with electrical contact, which is beneficial to define the effective working area of the working electrode 200. The counter electrode 600 is pressed by the cooperation of the second boss 701 and the second recess 501, and the counter electrode is provided with electrical contact, which is beneficial to define the effective working area of the counter electrode 600.

[0079] The present application has the following advantages:

[0080] (1) can effectively reduce the liquid junction resistance error;

[0081] (2) can effectively reduce the solution liquid junction resistance voltage drop loss;

[0082] (3) can effectively define the actual working area of the electrode;

[0083] (4) can effectively prevent the gas generated in the reaction process from accumulating in the corner to form a dead space and affect the measurement results;

[0084] (5) can effectively avoid the problem of liquid leakage or gas leakage when the ion exchange membrane is used alone;

[0085] (6) can effectively improve the use efficiency of the gas diffusion type flow electrolysis cell device.

[0086] It should be noted that the gas diffusion type flow electrolysis cell device provided by the present application can be used in the field of electrolysis cell device or other fields. The other fields are any field other than the field of electrolysis cell device. The above is only an example and does not limit the application field of the gas diffusion type flow electrolysis cell device provided by the present application.

[0087] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0088] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0089] In the description of the specification, reference to "one embodiment", "an example", "a specific example" or the like means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example", "a specific example" or the like in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0090] The preferred embodiments of the application disclosed above are only to help explain the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments. Obviously, many modifications and variations can be made in light of the contents of the specification. The specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A gas diffusion type flow electrolysis cell device, characterized in that, It includes a cathode assembly and an anode assembly arranged opposite to each other. The cathode assembly includes a cathode gas pool (100), a working electrode (200), and a cathode liquid pool (300) arranged sequentially, wherein: The cathode gas cell (100) is provided with a first protrusion (101), and the first protrusion (101) is hollowed out to form a first gas chamber (102); A first recess (301) is provided on the side of the cathode liquid pool (300) near the first gas chamber (102). The first recess (301) is adapted to the first boss (101). The first liquid chamber (302) is formed by hollowing out the middle of the first recess (301). The working electrode (200) is disposed between the first boss (101) and the first recess (301); When the cathode gas pool (100) and the cathode liquid pool (300) are in operation, the first boss (101) is clamped with the first recess (301); The anode assembly includes a proton exchange membrane (400), an anolyte pool (500), a counter electrode (600), and an anode end cap (700), wherein: A second recess (501) is provided on the side of the anode liquid pool (500) away from the first recess (301), and the second recess (501) is hollowed out to form a second liquid chamber (502). The proton exchange membrane (400) is disposed between the cathode liquid pool (300) and the anode liquid pool (500); A second protrusion (701) is provided on the side of the anode end cap (700) near the second liquid chamber (502). The second protrusion (701) is adapted to the second recess (501). The second protrusion (701) is hollowed out in the middle to form a second gas chamber (702). The counter electrode (600) is disposed between the second boss (701) and the second recess (501); When the anolyte pool (500) is in operation, the second boss (701) clamps with the second recess (501).

2. The gas diffusion type flowing electrolytic cell apparatus as described in claim 1, characterized in that, The first air inlet (104) and the first air outlet (105) of the cathode gas pool (100) are disposed on two opposite sides of the cathode gas pool (100) and communicate with the first gas chamber (102). The first outlet (304) and the first inlet (305) of the cathode liquid pool (300) are disposed on two adjacent sides of the cathode liquid pool (300) and communicate with the first liquid chamber (302); The reference electrode port (306) of the cathode liquid pool (300) is disposed on the side opposite to the first liquid inlet (305) of the cathode liquid pool (300) and communicates with the first liquid chamber (302); The second air inlet (704) and the second air outlet (705) of the anode end cap (700) are disposed on two opposite sides of the anode end cap (700) and communicate with the second gas chamber (702); The second outlet (504) and the second inlet (505) of the anode liquid pool (500) are located on two adjacent sides of the anode liquid pool (500) and communicate with the second liquid chamber (502).

3. The gas diffusion type flowing electrolytic cell apparatus as described in claim 2, characterized in that, The first outlet (304) of the cathode liquid pool (300) is connected to the first liquid chamber (302) through the first internal channel (800); The first inlet (305) of the cathode liquid pool (300) is connected to the first liquid chamber (302) through the second internal channel (801); The second outlet (504) of the anode liquid pool (500) is connected to the second liquid chamber (502) through a third internal channel (802); The second inlet (505) of the anode liquid pool (500) is connected to the second liquid chamber (502) through the fourth internal channel (803).

4. The gas diffusion type flowing electrolytic cell apparatus as described in claim 3, characterized in that, The cross-section of the first internal channel (800) gradually decreases from the first liquid chamber (302) to the first outlet (304) of the cathode liquid pool (300); and / or The cross-section of the second internal channel (801) gradually decreases from the first liquid chamber (302) to the first inlet (305) of the cathode liquid pool (300); and / or The cross-section of the third internal channel (802) gradually decreases from the second liquid chamber (502) to the second outlet (504) of the anode liquid pool (500); and / or The cross-section of the fourth internal channel (803) gradually decreases from the second liquid chamber (502) to the second inlet (505) of the anode liquid pool (500).

5. The gas diffusion type flowing electrolytic cell apparatus as described in claim 1, characterized in that, The cathode gas cell (100) is also provided with a first through hole (103), which penetrates the end face of the cathode gas cell (100) away from the cathode liquid cell (300) and the protruding surface of the first boss (101). The anode end cap (700) is also provided with a second through hole (703), which penetrates the end face of the anode end cap (700) away from the anode liquid pool (500) and the raised surface of the second boss (701).

6. The gas diffusion type flowing electrolytic cell apparatus as described in claim 5, characterized in that, It also includes a first metal wire and a second metal wire, wherein the first metal wire passes through the first through hole (103) and contacts the working electrode (200) to form a working electrode wiring; The second metal wire passes through the second through hole (703) and contacts the counter electrode (600) to form a counter electrode connection.

7. The gas diffusion type flowing electrolytic cell apparatus as described in claim 1, characterized in that, The cathode gas pool (100) and the cathode liquid pool (300) are connected together by a first bolt (900); and / or The anode end cap (700) and the anode liquid pool (500) are connected together by a second bolt (901); and / or The cathode liquid pool (300) and the anode liquid pool (500) are connected together by a third bolt (902).

8. The gas diffusion type flowing electrolytic cell apparatus as described in claim 1, characterized in that, It also includes a first groove (1011), a second groove (303), a third groove (503), a fourth groove (7011), and a sealing O-ring, wherein: The first groove (1011) is arranged in a ring around the outer periphery of the protrusion of the first boss (101); The second groove (303) is arranged in a ring on the end face of the cathode liquid pool (300) near the anode liquid pool (500) at a position corresponding to the first liquid chamber (302); The third groove (503) is arranged in a ring on the end face of the anode liquid pool (500) near the cathode liquid pool (300) at a position corresponding to the second liquid chamber (502); The fourth groove (7011) is arranged in a ring around the outer periphery of the protrusion of the second boss (701); The sealing O-ring is disposed inside the first groove (1011), the second groove (303), the third groove (503) and the fourth groove (7011) to clamp the working electrode (200), the proton exchange membrane (400) and the counter electrode (600).

9. The gas diffusion type flowing electrolytic cell apparatus as described in claim 1, characterized in that, The first boss (101) and the first recess (301) are rectangular structures; and / or the second boss (701) and the second recess (501) are rectangular structures.

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