CN216891250U - Water electrolysis hydrogen production electrode and water electrolysis hydrogen production electrolytic cell - Google Patents
Water electrolysis hydrogen production electrode and water electrolysis hydrogen production electrolytic cell Download PDFInfo
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- CN216891250U CN216891250U CN202123057933.9U CN202123057933U CN216891250U CN 216891250 U CN216891250 U CN 216891250U CN 202123057933 U CN202123057933 U CN 202123057933U CN 216891250 U CN216891250 U CN 216891250U
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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 utility model relates to a water electrolysis hydrogen manufacturing electrode and water electrolysis hydrogen manufacturing electrolysis trough, water electrolysis hydrogen manufacturing electrode is including lieing in outlying utmost point frame and setting up the polar plate in utmost point frame inner circle, and the both sides of polar plate tile in proper order respectively and pile up and have supporter and polar net, and wherein one side, the outside of polar net still tiles and is provided with the diaphragm, wherein, is provided with a plurality of bumping solder joints that are used for connecting polar net and polar plate in the supporter. In the water electrolysis hydrogen production electrode provided by the disclosure, the contact area between the polar net and the polar plate is increased by arranging a certain number of butt-welding points in the support body, so that the conductive area is increased, the contact resistance is reduced, and the problem of overlarge direct current consumption between the support body and the polar plate is solved.
Description
Technical Field
The disclosure relates to the technical field of hydrogen production by water electrolysis, in particular to a hydrogen production electrode by water electrolysis and a hydrogen production electrolytic cell by water electrolysis.
Background
The alkaline water electrolysis hydrogen production electrolytic tank is formed by connecting a plurality of small chambers in series. The electrode is a basic component of the electrolytic cell, and particularly under the condition that the electrode uses a large-diameter polar plate with the diameter larger than 1.8 meters, the direct current between the support body of the auxiliary polar net and the polar plate is high in power consumption and poor in conductivity. Therefore, a novel structure is urgently needed to solve the problem of excessive direct current consumption between the large-diameter polar plate and the auxiliary polar plate net supporting body.
SUMMERY OF THE UTILITY MODEL
The invention aims to provide a water electrolysis hydrogen production electrode and a water electrolysis hydrogen production electrolytic cell, which aim to solve the problem of excessive direct current power consumption between a polar net support body and a polar plate.
In order to realize the above-mentioned purpose, this disclosure provides a water electrolysis hydrogen production electrode, including being located outlying utmost point frame and setting up polar plate in the utmost point frame inner circle, the both sides of polar plate tile in proper order respectively and pile up and have supporter and utmost point net, and wherein one side, the outside of utmost point net still tiles and is provided with the diaphragm, wherein, be provided with a plurality ofly in the supporter and be used for connecting utmost point net with the bumping solder joint of polar plate.
Optionally, a plurality of the touch welding points are distributed at intervals in the circumferential direction.
Optionally, a plurality of said butt-welds are arranged in a plurality of turns arranged concentrically with said support body.
Optionally, the pole plate is circular, and the number of the touch welding points in each circle along the radial direction of the pole plate is increased in proportion from inside to outside.
Optionally, the cross section of the welding point is configured as a gradually expanding structure with gradually increasing size from one end connected with the polar plate to one end connected with the polar net;
the cross section of the touch welding point comprises a first rectangular cross section connected with the polar plate, a second rectangular cross section connected with the polar net and a trapezoidal cross section located between the first rectangular cross section and the second rectangular cross section.
Optionally, the support bodies on two sides of the polar plate are respectively provided with the touch welding points, and the touch welding points on two sides correspond to each other in position.
Optionally, the inner circumferential surface of the pole frame is respectively provided with a first step for mounting the pole mesh and a second step for mounting the diaphragm, and the pole meshes on the two sides have the same diameter and are larger than the support body and smaller than the diaphragm.
Optionally, the diaphragm further comprises a sealing gasket flatly laid on the outer side of the diaphragm, and the diameter of the sealing gasket is larger than that of the diaphragm.
Optionally, it is right to be provided with between the two adjacent bumping pads location structure that the supporter was fixed a position, location structure including protrusion in the arch on polar plate surface, and by the constant head tank that the supporter invaginated and formed, protruding with the shape cooperation of constant head tank.
According to still another aspect of the present disclosure, there is also provided a water electrolysis hydrogen production electrolytic cell, including an electrolysis unit disposed in the electrolytic cell, where the electrolysis unit includes two water electrolysis hydrogen production electrodes according to any one of the above, and one sides of the two electrodes, where the diaphragms are disposed, are attached to each other.
Through the technical scheme, in the water electrolysis hydrogen production electrode provided by the disclosure, the contact area of the polar net and the polar plate is increased by arranging a certain number of butt-welding points in the support body, so that the conductive area is increased, the contact resistance is reduced, and the problem of overlarge direct current consumption between the support body and the polar plate is solved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic partial cut-away view of a water, water electrolysis hydrogen production electrode according to one embodiment of the present disclosure.
FIG. 2 is a schematic view of a water electrolysis hydrogen production electrode according to one embodiment of the present disclosure, with the polar web and sealing gasket removed for ease of illustration.
Description of the reference numerals
1-pole frame; 11-a first step; 12-a second step; 2-pole plate; 3-a support; 31-touch welding points; 32-protrusions; 4-pole network; 5-a separator; 6-sealing gasket.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, the terms of orientation such as "inside" and "outside" are defined according to the actual structure and arrangement state of the electrode for hydrogen production by water electrolysis, and specifically as shown in fig. 1, the directions of arrows are "outside" and the directions opposite to the arrows are "inside" with reference to the dots in fig. 1; the use of the terms first, second, etc. are used for distinguishing between different components and not necessarily for describing a sequential or chronological order. Furthermore, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained.
According to an embodiment of the present disclosure, as shown in fig. 1 and 2, a water electrolysis hydrogen production electrode is provided, which may include a polar frame 1 located at the periphery, and a polar plate 2 disposed in the inner ring of the polar frame 1, wherein two sides of the polar plate 2 are respectively tiled and stacked with a support body 3 and a polar net 4 in sequence, and on one side of the polar net, the outer side of the polar net 4 is further tiled and provided with a diaphragm 5, wherein a plurality of butt-welding points 31 for connecting the polar net 4 and the polar plate 2 are disposed in the support body 3. Here, there are various arrangements of the plurality of welding spots 31 in the supporting body 3, such as a random scattering arrangement, a matrix arrangement, a circumferential arrangement described below, and the like, which are within the scope of the present disclosure.
Through the technical scheme, in the water electrolysis hydrogen production electrode provided by the disclosure, the contact area between the polar net 4 and the polar plate 2 is increased by arranging a certain number of butt-welding points 31 in the support body 3, so that the conductive area is increased, the contact resistance is reduced, and the problem of overlarge direct current consumption between the support body 3 and the polar plate 2 is solved. In the embodiments of the present disclosure, the material of the pole frame 1 may be a metal material, or may be a polymer material such as plastic, which is not limited in the present disclosure. The shape of the polar frame 1 and the polar plate 2 can be round, square and the like, and the adaptive design can be carried out according to the process requirements. Adaptive improvements can be made with respect to the number, shape, arrangement, etc. of the added butt-welds 31, all falling within the scope of the present disclosure. It should be noted that the electrode plates 2 used in the present disclosure are all electrode plates with a diameter greater than 1.8m, in such a large-diameter electrode plate, the structure can obtain better effects, and the structure shown in the present disclosure can also be applied to a medium-diameter or small-diameter electrode plate with a diameter not greater than 1.8m, and the present disclosure does not limit this.
In an exemplary embodiment of the present disclosure, as shown in fig. 1 and 2, the plurality of welding spots 31 are circumferentially spaced, which facilitates uniform distribution of the welding spots 31 in the electrode, for example, the plurality of welding spots may be circumferentially spaced at equal intervals, which facilitates uniform conductive positions in the circumferential direction of the electrode, and increases the service life of the electrode. In addition, the circumferential arrangement is not limited to the circular arrangement shown in the figures, and a plurality of butt-welded points may be arranged in a square shape, an oval shape, and the like, all falling within the protection scope of the present disclosure.
Further, as shown in fig. 1 and 2, the plurality of solder joints 31 are arranged in a plurality of circles concentrically arranged with the support body 3, the number of the solder joints 31 can be increased due to the multi-circle distribution of the solder joints 31, the conductive area can be increased, the contact resistance can be effectively reduced, the conductivity of the electrode can be improved, and meanwhile, the uniform distribution of the inner and outer circles is also beneficial to the uniformity of the conductive position of the electrode, so that the service life of the electrode can be prolonged.
Further, as shown in fig. 2, the pole plate 2 may be circular, the number of the butt-welded points 31 increases proportionally from inside to outside along the radial direction of the pole plate 2, and the corresponding conductive area increases when the number of the butt-welded points 31 increases, so that the contact resistance can be effectively reduced, and the conductivity of the water electrolysis hydrogen production electrode can be improved. The proportional increase here means that the number of the butt-welding points on the outer ring is multiplied with the number of the butt-welding points on the inner ring, and specifically depends on the diameter of the circle and the angle design of the central angle corresponding to the two adjacent butt-welding points 31.
According to an embodiment of the present disclosure, as shown in fig. 1, the cross-sectional structure of the spot 31 may be a gradually expanding structure with a size gradually increasing from the end connected with the pole plate 2 to the end connected with the polar net 4, wherein, after a plurality of experiments, the diameter of the end of the spot 31 connected with the polar net 4 may be 25mm, and the minimum diameter extending to the end of the pole plate 2 may be 20mm, and the spot 31 is preferably shaped as a mold, which can effectively reduce the cost. In the in-service use process, can press through two polar nets 4, will be located the butt-joint point 31 extrusion in the supporter 3 that polar plate 2 both sides set up for butt-joint point 31 can fully contact with polar plate 2 and polar net 4, and butt-joint point 31 does not run through supporter 3 completely, and its open position is towards the position of polar net 4, and extrusion butt-joint point 31 can make butt-joint point 31 not run through the part of supporter 3 and fully contact with polar plate 2, increases the conducting area with polar plate 2.
Further, the cross section of the butt-welded joint 31 comprises a first rectangular cross section connected with the pole plate 2, a second rectangular cross section connected with the pole mesh 4 and a trapezoidal cross section located between the first rectangular cross section and the second rectangular cross section, and after the butt-welded joint 31 is extruded by pressing the two pole meshes 4, the first rectangular cross section and the second rectangular cross section are both flattened, so that the contact area between the butt-welded joint 31 and the pole mesh 4 and the pole plate 2 is increased, and the conductive area is correspondingly increased.
On the basis of the above scheme, as shown in fig. 1, the support bodies 3 on both sides of the electrode plate 2 are respectively provided with the butt-welding points 31, and the positions of the butt-welding points 31 on both sides can correspond to each other, when the electrode nets 4 on both sides are pressed, the butt-welding points 31 correspondingly arranged in the positions are more easily deformed, so that the butt-welding points 31 are more fully contacted with the electrode plate 2, the resistance value of the contact resistance between the electrodes can be effectively reduced, the power consumption between the support bodies 3 and the electrode plate 2 is reduced, and the conductivity of the electrodes is improved.
According to one embodiment of the present disclosure, as shown in fig. 1, the inner circumferential surface of the pole frame 1 is provided with a first step 11 for mounting the pole mesh 4 and a second step 12 for mounting the separator 5, respectively, the diameters of the pole meshes 4 on both sides are the same, and the diameter of the pole mesh 4 is larger than the diameter of the support body 3 and smaller than the diameter of the separator 5. The first step 11 has a level surface with the surface of the support body 3, and the first step 11 has a height equal to the thickness of the pole mesh 4, so that after the pole mesh 4 and the sealing gasket 6 mentioned below are mounted, the first step is level with the surface of the pole frame 1, and no gap is left between the pole mesh 4 and the first step 11. The step surface of the second step 12 is flush with the surface of the polar net 4, the height of the second step 12 is the same as the thickness of the diaphragm 5, no gap is left between the diaphragm 5 and the second step 12, and the step setting can enable the electrode part and the polar frame 1 to be matched more tightly, so that the surfaces are more embedded.
According to an embodiment of the present disclosure, as shown in fig. 1, the electrode for hydrogen production by water electrolysis further includes a sealing gasket 6 flatly laid on the outer side of the diaphragm 5, and the diameter of the sealing gasket 6 is greater than the diameter of the diaphragm 5, if the side is the side without the diaphragm 5, the sealing gasket 6 is disposed on the outer side of the polar net 4, and meanwhile, a plurality of annular sealing lines with the same interval are further disposed on the polar frame 1 in a matching manner, and the sealing lines are disposed on the outer ring of the sealing gasket 6 and are matched with the sealing gasket 6 to seal the electrode for hydrogen production by water electrolysis.
According to an embodiment of the present disclosure, as shown in fig. 1, a positioning structure for positioning the support body 3 is disposed between two adjacent welding points 31, the positioning structure includes a protrusion 32 protruding from the surface of the polar plate 2 and a positioning groove formed by invagination of the support body, and the protrusion 32 and the positioning groove are matched in shape, so that the support body 3 on two sides of the polar plate 2 can be effectively installed and positioned, and adverse effects such as increase of resistance value of the contact resistor caused by the position of the support body 3 on two sides not corresponding to each other, increase of direct current power consumption, and the like are prevented.
On the basis of the scheme, the present disclosure still provides a water electrolysis hydrogen production electrolytic cell, this water electrolysis hydrogen production electrolytic cell is including setting up the electrolysis unit in the electrolytic cell, and simultaneously, the electrolysis unit includes two water electrolysis hydrogen production electrodes introduced above, and two electrodes are provided with the setting of laminating mutually of one side of diaphragm 5, constitute an electrolysis unit jointly, and contain diaphragm 5 one side and be the positive pole, and in addition, this water electrolysis hydrogen production electrolytic cell has all beneficial effects of above-mentioned water electrolysis hydrogen production electrode, and it is no longer repeated here.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. The utility model provides a water electrolysis hydrogen production electrode, its characterized in that is in including being located outlying utmost point frame and setting polar plate in the utmost point frame inner circle, the both sides of polar plate tile in proper order respectively and pile up and have supporter and utmost point net, and wherein one side, the outside of utmost point net still tiles and is provided with the diaphragm, wherein, be provided with a plurality ofly in the supporter and be used for connecting the utmost point net with the bumping solder joint of polar plate.
2. The water electrolysis hydrogen production electrode according to claim 1, wherein a plurality of the welding points are circumferentially spaced.
3. The water electrolytic hydrogen production electrode according to claim 2, wherein a plurality of the butt-welds are arranged in a plurality of turns arranged concentrically with the support body.
4. The water electrolysis hydrogen production electrode according to claim 3, wherein the pole plate is circular, and the number of the welding points per circle increases proportionally from inside to outside along the radial direction of the pole plate.
5. The water electrolysis hydrogen production electrode according to claim 1, wherein the cross section of the welding point is configured into a gradually expanding structure with gradually increasing size from one end connected with the polar plate to one end connected with the polar net;
the cross section of the touch welding point comprises a first rectangular cross section connected with the polar plate, a second rectangular cross section connected with the polar net and a trapezoidal cross section located between the first rectangular cross section and the second rectangular cross section.
6. The water electrolysis hydrogen production electrode according to any one of claims 1 to 5, wherein the touch welding points are respectively arranged in the supporting bodies at two sides of the polar plate, and the touch welding points at two sides are corresponding in position.
7. The electrode for hydrogen production by water electrolysis according to claim 1, wherein the inner peripheral surface of the pole frame is provided with a first step for mounting the pole mesh and a second step for mounting the separator, respectively, and the pole meshes on both sides have the same diameter and have a diameter larger than that of the support body and smaller than that of the separator.
8. The water electrolytic hydrogen production electrode of claim 1, further comprising a sealing gasket disposed flat on the outside of the membrane, wherein the sealing gasket has a diameter larger than the diameter of the membrane.
9. The water electrolysis hydrogen production electrode according to claim 1, wherein a positioning structure for positioning the support body is arranged between two adjacent welding points, the positioning structure comprises a protrusion protruding out of the surface of the polar plate and a positioning groove formed by inward sinking of the support body, and the shape of the protrusion is matched with that of the positioning groove.
10. A water electrolysis hydrogen production electrolytic cell, comprising an electrolysis unit arranged in the electrolytic cell, characterized in that the electrolysis unit comprises two water electrolysis hydrogen production electrodes according to any one of claims 1 to 9, and one sides of the two electrodes provided with the diaphragms are attached to each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2021216991616 | 2021-07-23 | ||
| CN202121699161 | 2021-07-23 |
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| CN216891250U true CN216891250U (en) | 2022-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024078190A1 (en) * | 2022-10-10 | 2024-04-18 | 无锡隆基氢能科技有限公司 | Metal electrode frame for electrolyzing water to produce hydrogen, electrolysis units, electrolytic cell and assembly jig |
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2021
- 2021-12-07 CN CN202123057933.9U patent/CN216891250U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024078190A1 (en) * | 2022-10-10 | 2024-04-18 | 无锡隆基氢能科技有限公司 | Metal electrode frame for electrolyzing water to produce hydrogen, electrolysis units, electrolytic cell and assembly jig |
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