CN211665190U - Electrolytic cell structure and electrolytic device - Google Patents
Electrolytic cell structure and electrolytic device Download PDFInfo
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- CN211665190U CN211665190U CN201922494163.0U CN201922494163U CN211665190U CN 211665190 U CN211665190 U CN 211665190U CN 201922494163 U CN201922494163 U CN 201922494163U CN 211665190 U CN211665190 U CN 211665190U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The application provides an electrolytic cell structure and an electrolytic device, wherein the electrolytic cell structure comprises a frame body, a membrane electrode, an anode plate group and a cathode plate group; the inner side wall of the frame body is provided with a first annular inner side surface, an annular step surface and a second annular inner side surface, the outer edge of the annular step surface is connected with the first annular inner side surface, and the inner edge is connected with the second annular inner side surface; the anode plate group is arranged on the anode side of the membrane electrode, the cathode plate group is arranged on the cathode side of the membrane electrode, the anode plate group and the membrane electrode are both assembled in the first annular inner side surface, and the cathode plate group is assembled in the second annular inner side plate; the annular step surface is provided with a first sealing ring, and the outer periphery of the membrane electrode extends to be in butt fit with the surface of the first sealing ring. The utility model provides a can improve electrolysis trough structure or electrolytic device's leakproofness, make hydrogen and oxygen be difficult for mixing, reduce the potential safety hazard to easily realize working under the high atmospheric pressure condition, improve gas output efficiency.
Description
Technical Field
The application belongs to the technical field of electrolytic hydrogen production, and particularly relates to an electrolytic cell structure and an electrolytic device.
Background
Hydrogen energy is regarded as an ideal energy carrier due to the advantages of cleanness, no pollution, high efficiency, storage and transportation and the like, and hydrogen production by water electrolysis is the simplest method for obtaining pure hydrogen at present. The proton exchange membrane water electrolysis technology is that oxygen and hydrogen are generated by electrolyzing water, deionized water flows into a channel through the deionized water and diffuses to the anode side of the proton exchange membrane through a diffusion layer, oxygen and hydrogen ions are generated by electrolysis under the action of a catalyst, the oxygen flows out of an electrolysis cell through an oxygen-containing deionized water channel along with the deionized water which does not participate in the electrolysis, and the hydrogen ions pass through the proton exchange membrane to the cathode side, then hydrogen is generated, flow into a hydrogen discharge channel through a cathode diffusion layer, and then flow out of the electrolysis cell. At present, the gas output pressure of a proton exchange membrane electrolytic cell is mostly 1 to 3Mpa, and when the electrolytic cell works under the condition of high pressure (more than or equal to 3Mpa), local hydrogen and oxygen are easy to mix, so that potential safety hazards are increased.
SUMMERY OF THE UTILITY MODEL
The application aims to provide an electrolytic cell structure to solve the technical problem that in the prior art, partial hydrogen and oxygen are easy to mix when an electrolytic cell works under a high-pressure condition, so that potential safety hazards are increased.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: an electrolytic cell structure comprises a frame body, a membrane electrode, an anode plate group and a cathode plate group; the inner side wall of the frame body is provided with a first annular inner side surface, an annular step surface and a second annular inner side surface, the outer edge of the annular step surface is connected with the first annular inner side surface, and the inner edge of the annular step surface is connected with the second annular inner side surface; the anode plate group is arranged on the anode side of the membrane electrode, the cathode plate group is arranged on the cathode side of the membrane electrode, the anode plate group and the membrane electrode are assembled in the first annular inner side face, and the cathode plate group is assembled in the second annular inner side face; the first sealing ring is arranged on the annular step surface, and the outer periphery of the membrane electrode extends to be in butt fit with the surface of the first sealing ring.
Further, the membrane electrode comprises a proton exchange membrane, an anode catalyst layer and a cathode catalyst layer, the anode catalyst layer is arranged on one side surface of the proton exchange membrane, the cathode catalyst layer is arranged on the other side surface opposite to the proton exchange membrane, and the outer periphery of the proton exchange membrane extends to be in abutting fit with the surface of the first sealing ring.
Further, the anode catalytic layer is coated on one side surface of the proton exchange membrane, and the cathode catalytic layer is coated on the other side surface opposite to the proton exchange membrane.
Further, the anode plate group comprises an anode support plate and an anode flow guide plate, wherein the anode support plate is positioned between the anode flow guide plate and the membrane electrode; the anode support plate is provided with a plurality of anode diversion holes in a penetrating mode, and the surface, facing the anode support plate, of the anode diversion plate is provided with a plurality of anode diversion grooves.
Further, the cathode plate group comprises a cathode support plate and a cathode flow guide plate, wherein the cathode support plate is positioned between the cathode flow guide plate and the membrane electrode; the cathode support plate is provided with a plurality of cathode diversion holes in a penetrating mode, and the surface, facing the cathode support plate, of the cathode diversion plate is provided with a plurality of cathode diversion grooves.
Further, the cathode plate group also comprises a carbon paper layer, and the carbon paper layer is arranged between the cathode support plate and the membrane electrode.
The utility model also provides an electrolytic device, including a plurality of as before the electrolysis trough structure, it is a plurality of the electrolysis trough structure is followed the thickness direction of an electrolysis trough structure and is piled up the setting, adjacent two be provided with the second sealing washer between the electrolysis trough structure, the second sealing washer respectively with adjacent two the cooperation of the surperficial butt of framework, the internal periphery of second sealing washer extend to with the cooperation of the surperficial butt of anode plate group.
Furthermore, the electrolytic cell structure also comprises a first cover plate and a second cover plate, and a plurality of electrolytic cell structures are clamped and fixed between the first cover plate and the second cover plate.
Furthermore, the surfaces of the first cover plate and the second cover plate, which face each other, are respectively provided with a third sealing ring, the frame bodies and the second sealing rings, which are respectively arranged between the two adjacent frame bodies, form a frame, and the third sealing rings on the surfaces of the first cover plate and the second cover plate, which face each other, are respectively abutted against and matched with the two surfaces of the frame, which face each other.
Furthermore, a plurality of groups of threaded connection structures used for connecting the first cover plate and the second cover plate are arranged between the first cover plate and the second cover plate, each threaded connection structure comprises a screw rod and two nuts in threaded connection on the screw rod respectively, and through holes for the screw rods to pass through are formed in the first cover plate and the second cover plate.
The utility model has the advantages of, through set up first annular medial surface, annular step face and second annular medial surface at the inside wall of framework to set up first sealing washer on annular step face, make two surfaces that the first sealing washer of electrolysis trough structure is relative respectively with annular step face and the outer peripheral edge lower surface butt of membrane electrode after the assembly, and then realize that the isolation in positive side clearance and negative side clearance is sealed. In the electrolytic process, oxygen generated on the anode side of the membrane electrode and hydrogen generated on the cathode side of the membrane electrode are not easy to mix through the anode side gap and the cathode side gap, so that the sealing property between the anode side and the cathode side of a single electrolytic cell structure is improved, the potential safety hazard of the electrolytic cell structure is reduced, the electrolytic cell structure is easy to work under the condition of high pressure (more than or equal to 3Mpa), and the gas output efficiency of the electrolytic cell structure is improved.
Drawings
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 or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a structural cross-sectional view of an electrolytic cell structure according to an embodiment of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a sectional view of an electrolyzer according to an embodiment of the present invention.
Wherein, each mark in the figure is:
1. an electrolytic cell structure; 11. a frame body; 111. a first annular inner side; 112. an annular step surface; 113. a second annular inner side; 12. a membrane electrode; 121. a proton exchange membrane; 122. an anode catalyst layer; 123. a cathode catalyst layer; 13. an anode plate group; 131. an anode support plate; 132. an anode flow guide plate; 133. an anode diversion trench; 14. a cathode plate group; 141. a cathode support plate; 142. a cathode flow guide plate; 143. a cathode diversion trench; 144. A carbon paper layer; 15. a first seal ring; 16. an anode-side gap; 17. a cathode side gap; 2. a second seal ring; 3. a first cover plate; 4. a second cover plate; 5. a third seal ring; 6. a threaded connection; 61. a screw; 62. and a nut.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the patent, and the specific meanings of the above terms will be understood by those skilled in the art according to specific situations. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
As shown in fig. 1 and 2, the present invention provides an electrolytic cell structure 1, which includes a frame 11, a membrane electrode 12, an anode plate group 13 and a cathode plate group 14. The inner side wall of the frame body 11 has a first annular inner side surface 111, an annular step surface 112 and a second annular inner side surface 113, the first annular inner side surface 111, the annular step surface 112 and the second annular inner side surface 113 are distributed from top to bottom along the inner side wall of the frame body 11, the outer edge of the annular step surface 112 is connected with the first annular inner side surface 111, and the inner edge is connected with the second annular inner side surface 113. The anode plate group 13 is arranged on the anode side of the membrane electrode 12, the cathode plate group 14 is arranged on the cathode side of the membrane electrode 12, the anode plate group 13 is used for leading out oxygen generated by the anode of the membrane electrode 12, the cathode plate group 14 is used for leading out hydrogen generated by the cathode of the membrane electrode 12, and the membrane electrode 12, the anode plate group 13 and the cathode plate group 14 are respectively arranged in the frame 11; the anode plate group 13 and the membrane electrode 12 are both assembled in the first annular inner side surface 111, and an anode side gap 16 is formed between the assembled anode plate group and the first annular inner side surface 111; the cathode plate pack 14 is assembled within the second annular inner side plate and forms a cathode side gap 17 with the second annular inner side 113 after assembly. The annular step surface 112 is provided with a first seal ring 15, and the outer periphery of the membrane electrode 12 extends to be in abutting fit with the surface of the first seal ring 15.
The utility model discloses a set up first annular medial surface 111, annular step face 112 and second annular medial surface 113 at the inside wall of framework 11 to set up first sealing washer 15 on annular step face 112, make two surfaces that first sealing washer 15 is relative of electrolysis trough structure 1 after the assembly respectively with annular step face 112 and membrane electrode 12's outer peripheral edge lower surface butt, and then realize that the isolation in positive side clearance 16 and negative side clearance 17 is sealed. In the electrolytic process, oxygen generated by the anode side of the membrane electrode 12 and hydrogen generated by the cathode side of the membrane electrode 12 are not easy to mix through the anode side gap 16 and the cathode side gap 17, so that the sealing performance between the anode side and the cathode side of a single electrolytic cell structure 1 is improved, the potential safety hazard of the electrolytic cell structure 1 is reduced, the electrolytic cell structure 1 is easy to work under the condition of high pressure (more than or equal to 3Mpa), and the gas output efficiency of the electrolytic cell structure 1 is improved.
In one embodiment, the membrane electrode 12 includes a proton exchange membrane 121, an anode catalyst layer 122 and a cathode catalyst layer 123, the anode catalyst layer 122 is disposed on one side surface of the proton exchange membrane 121, and the cathode catalyst layer 123 is disposed on the other side surface opposite to the proton exchange membrane 121, at this time, the outer periphery of the proton exchange membrane 121 extends to be in abutting fit with the surface of the first sealing ring 15.
When the water electrolysis reaction is started under the action of the electric current, H is arranged at the anode part of the water electrolysis reaction2O loses electrons to generate H under the action of the anode catalyst layer 122 of the membrane electrode 12+And O2，H+From the anode portion through the proton exchange membrane 121 of the membrane electrode 12 to the cathode portion, O2Is discharged through the anode plate group 13; in the cathode part of the water electrolysis reaction, H+The electrons are obtained under the action of the cathode catalyst layer 123 of the membrane electrode to generate H2，H2Exiting through the cathode plate stack 14, the specific reaction is as follows:
and (3) anode reaction: 2H2O→O2+4H++4e-
And (3) cathode reaction: 4H++4e-→2H2
After assembly, the two opposing surfaces of the first seal ring 15 are respectively abutted against the annular step surface 112 and the outer peripheral lower surface of the proton exchange membrane 121, thereby achieving the isolation seal of the anode-side gap 16 and the cathode-side gap 17.
In one embodiment, the anode catalyst layer 122 is sprayed or coated on one side surface of the proton exchange membrane 121, and the cathode catalyst layer 123 is sprayed or coated on the opposite side surface of the proton exchange membrane 121. Set up anode catalyst and cathode catalyst respectively at proton exchange membrane 121's both sides surface and form anode catalysis layer 122 and cathode catalysis layer 123 through spraying or coating, make membrane electrode 12 be the integral structure, for split type structure, the utility model provides an anode catalysis layer 122 and cathode catalysis layer 123 in membrane electrode 12 contact with proton exchange membrane 121 respectively inseparabler, have both improved anode catalyst and cathode catalyst's availability factor, have also improved membrane electrode 12's performance simultaneously.
In one embodiment, the anode plate set 13 includes an anode support plate 131 and an anode flow guide plate 132, the anode support plate 131 being located between the anode flow guide plate 132 and the membrane electrode 12; the anode support plate 131 is provided with a plurality of anode guiding holes (not shown), and the surface of the anode guiding plate 132 facing the anode support plate 131 is provided with a plurality of anode guiding grooves 133. The anode supporting plate 131 may be a titanium mesh sintered from titanium metal, and has a small structural compressibility, a thickness of about 1mm, and mainly plays a role in supporting and connecting, and its mesh is an anode diversion hole, and oxygen generated at the anode side is discharged outside through the anode diversion hole of the anode supporting plate 131 and the cathode diversion trench 143 of the anode diversion plate 132 in sequence.
In one embodiment, the cathode plate stack 14 includes a cathode support plate 141 and a cathode flow guide plate 142, the cathode support plate 141 being positioned between the cathode flow guide plate 142 and the membrane electrode 12; the cathode support plate 141 is provided with a plurality of cathode guiding holes (not shown), and the surface of the cathode guiding plate 142 facing the cathode support plate 141 is provided with a plurality of cathode guiding grooves 143. The cathode supporting plate 141 may be a titanium mesh sintered from titanium metal, and has a small structural compressibility, a thickness of about 1mm, and mainly plays a role in supporting and connecting, and its meshes are cathode diversion holes, and hydrogen generated at the cathode side is discharged through the cathode diversion holes of the cathode supporting plate 141 and the cathode diversion grooves 143 of the cathode diversion plate 142 in sequence.
In one embodiment, the cathode plate set 14 further includes a carbon paper layer 144, the carbon paper layer 144 being disposed between the cathode support plate 141 and the membrane electrode 12. The carbon paper layer 144 can be selected from carbon papers of different numbers according to requirements, and hydrogen generated at the cathode side of the membrane electrode 12 can be discharged outwards through the carbon paper, the cathode diversion holes of the cathode support plate 141 and the cathode diversion grooves 143 of the cathode diversion plate 142 in sequence by utilizing the characteristic of loose and porous carbon paper. By providing the carbon paper layer 144 between the cathode support plate 141 and the membrane electrode 12, direct contact between the cathode support plate 141 and the membrane electrode 12 can be prevented, thereby improving the service life of the cathode support plate 141 and the membrane electrode 12.
As shown in fig. 3, the utility model also provides an electrolysis device, including a plurality of above-mentioned electrolysis trough structure 1, a plurality of electrolysis trough structure 1 pile up the setting along electrolysis trough structure 1's thickness direction (upper and lower direction), are provided with second sealing washer 2 between two adjacent electrolysis trough structure 1, and second sealing washer 2 cooperates with the surperficial butt of two adjacent frameworks 11 respectively, and the internal periphery of second sealing washer 2 extends to the surperficial butt cooperation of organizing 13 with the anode plate.
The utility model discloses an increase electrolysis trough structure 1's quantity and improve the gas production, two adjacent 1 assembly backs of electrolysis trough structure, the lower surface of second sealing washer 2 and the upper surface butt of a framework 11, the upper surface of second sealing washer 2 and the lower surface butt of the last framework 11 of adjacent, and the internal perisporium of second sealing washer 2 extends to and organizes 13 butts with the anode plate, make the lower surface of second sealing washer 2 can stride across and seal the upper end opening in the positive side clearance 16 of electrolysis trough structure 1, and then realize the sealed isolation in positive side clearance 16 of an electrolysis trough structure 1 and the negative side clearance 17 of the last electrolysis trough structure 1 of adjacent, the upper end opening in positive side clearance 16 of electrolysis trough structure 1 is sealed by second sealing washer 2 promptly, the lower extreme opening is sealed by first sealing washer 15. In the plurality of electrolytic cell structures 1, hydrogen generated by the cathode side of one electrolytic cell structure 1 and oxygen generated by the anode side of the adjacent previous electrolytic cell structure 1 are not easy to mix through the anode side gap 16 and the cathode side gap 17 of the two electrolytic cell structures 1, so that the sealing performance of the two adjacent electrolytic cell structures 1 is improved, the potential safety hazard of the electrolytic device is reduced, the electrolytic device is easy to work under the condition of high pressure (more than or equal to 3Mpa), and the gas output efficiency of the electrolytic device is improved.
In one embodiment, the electrolysis apparatus further comprises a first cover plate 3 and a second cover plate 4, and the plurality of cell structures 1 are clamped and fixed between the first cover plate 3 and the second cover plate 4. The plurality of electrolytic cell structures 1 can be assembled and fixed by clamping the first cover plate 3 and the second cover plate 4.
In one embodiment, the facing surfaces of the first cover plate 3 and the second cover plate 4 are respectively provided with a third sealing ring 5, the plurality of frame bodies 11 and the plurality of second sealing rings 2 respectively arranged between two adjacent frame bodies 11 together form a frame, and the third sealing rings 5 on the facing surfaces of the first cover plate 3 and the second cover plate 4 are respectively in abutting fit with the two facing surfaces of the frame. Through set up third sealing washer 5 on first apron 3 and the second apron 4 surface that is in opposite directions, after the assembly, the lower surface of a third sealing washer 5 and the upper surface butt of frame, the upper surface and the lower surface butt of first apron 3, the upper surface of another third sealing washer 5 and the lower surface butt of frame, the lower surface and the upper surface butt of second apron 4, and then improve the overall structure that a plurality of electrolysis trough structures 1 constitute and the leakproofness between first apron 3 and the second apron 4.
In one embodiment, a plurality of sets of threaded connection structures 6 for connecting the first cover plate 3 and the second cover plate 4 are arranged between the first cover plate 3 and the second cover plate 4, each threaded connection structure 6 includes a screw 61 and two nuts 62 respectively threaded onto the screw 61, and the first cover plate 3 and the second cover plate 4 are both provided with through holes for the screws 61 to pass through. The first cover plate 3 and the second cover plate 4 are detachably connected through the screw rod 61 and the nut 62, and the plurality of electrolytic tank structures 1 can be clamped and fixed between the first cover plate 3 and the second cover plate 4.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. An electrolytic cell structure is characterized by comprising a frame body, a membrane electrode, an anode plate group and a cathode plate group; the inner side wall of the frame body is provided with a first annular inner side surface, an annular step surface and a second annular inner side surface, the outer edge of the annular step surface is connected with the first annular inner side surface, and the inner edge of the annular step surface is connected with the second annular inner side surface; the anode plate group is arranged on the anode side of the membrane electrode, the cathode plate group is arranged on the cathode side of the membrane electrode, the anode plate group and the membrane electrode are assembled in the first annular inner side face, and the cathode plate group is assembled in the second annular inner side face; the first sealing ring is arranged on the annular step surface, and the outer periphery of the membrane electrode extends to be in butt fit with the surface of the first sealing ring.
2. The electrolyzer structure of claim 1 wherein the membrane electrode comprises a proton exchange membrane, an anode catalytic layer disposed on one side surface of the proton exchange membrane, and a cathode catalytic layer disposed on the opposite side surface of the proton exchange membrane, the outer periphery of the proton exchange membrane extending to abut against the surface of the first sealing ring.
3. The electrolyzer structure of claim 2 characterized in that the anode catalytic layer is coated on one side surface of the proton exchange membrane and the cathode catalytic layer is coated on the opposite side surface of the proton exchange membrane.
4. The cell structure of claim 1 wherein said anode plate set comprises an anode support plate and an anode flow guide, said anode support plate being positioned between said anode flow guide and a membrane electrode; the anode support plate is provided with a plurality of anode diversion holes in a penetrating mode, and the surface, facing the anode support plate, of the anode diversion plate is provided with a plurality of anode diversion grooves.
5. The electrolyzer structure of claim 1 wherein the cathode plate set comprises a cathode support plate and a cathode flow guide, the cathode support plate being located between the cathode flow guide and a membrane electrode; the cathode support plate is provided with a plurality of cathode diversion holes in a penetrating mode, and the surface, facing the cathode support plate, of the cathode diversion plate is provided with a plurality of cathode diversion grooves.
6. The cell structure of claim 5, wherein said cathode plate set further comprises a carbon paper layer disposed between said cathode support plate and said membrane electrode.
7. An electrolysis apparatus comprising a plurality of cell structures according to any one of claims 1 to 6, wherein a plurality of said cell structures are stacked in the thickness direction of one cell structure, a second sealing ring is provided between two adjacent cell structures, said second sealing ring is respectively in abutting engagement with the surfaces of two adjacent frame bodies, and the inner periphery of said second sealing ring extends to be in abutting engagement with the surface of said anode plate group.
8. The electrolyzer apparatus of claim 7 further comprising a first cover plate and a second cover plate, a plurality of the electrolyzer structures being sandwiched and secured between the first and second cover plates.
9. The electrolyzing apparatus as recited in claim 8, wherein said first and second cover plates have third gaskets disposed on opposite surfaces thereof, and wherein said plurality of frame members and said plurality of second gaskets disposed between adjacent ones of said plurality of frame members form a frame, and wherein said third gaskets on said opposite surfaces of said first and second cover plates are in abutting engagement with said opposite surfaces of said frame.
10. The electrolysis device according to claim 8, wherein a plurality of sets of threaded connection structures for connecting the first cover plate and the second cover plate are arranged between the first cover plate and the second cover plate, each threaded connection structure comprises a screw rod and two nuts respectively in threaded connection with the screw rod, and the first cover plate and the second cover plate are both provided with through holes for the screw rods to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922494163.0U CN211665190U (en) | 2019-12-30 | 2019-12-30 | Electrolytic cell structure and electrolytic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922494163.0U CN211665190U (en) | 2019-12-30 | 2019-12-30 | Electrolytic cell structure and electrolytic device |
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| CN211665190U true CN211665190U (en) | 2020-10-13 |
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| CN201922494163.0U Active CN211665190U (en) | 2019-12-30 | 2019-12-30 | Electrolytic cell structure and electrolytic device |
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