CN113832474A - Hydraulic pressure booster-type sealed electrochemical cell - Google Patents
Hydraulic pressure booster-type sealed electrochemical cell Download PDFInfo
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- CN113832474A CN113832474A CN202111024600.8A CN202111024600A CN113832474A CN 113832474 A CN113832474 A CN 113832474A CN 202111024600 A CN202111024600 A CN 202111024600A CN 113832474 A CN113832474 A CN 113832474A
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- electrochemical cell
- fixed steel
- cell body
- steel construction
- connecting piece
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 73
- 239000010959 steel Substances 0.000 claims abstract description 73
- 210000005056 cell body Anatomy 0.000 claims abstract description 44
- 210000004027 cell Anatomy 0.000 claims abstract description 35
- 238000010276 construction Methods 0.000 claims description 33
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 27
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 15
- 239000001257 hydrogen Substances 0.000 description 15
- 229910052739 hydrogen Inorganic materials 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/05—Pressure cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a hydraulic pressure booster-type sealed electrochemical cell, which comprises an electrochemical cell body, wherein two ends of the electrochemical cell body are respectively and correspondingly provided with a fixed steel structure, each fixed steel structure comprises an upper fixed steel structure and a lower fixed steel structure, the upper fixed steel structures are correspondingly connected with the upper end of the electrochemical cell body, the upper end of the lower fixed steel structure is correspondingly connected with a hydraulic system, the upper end of the hydraulic system is correspondingly connected with the lower end of the electrochemical cell body, and the lower end of the lower fixed steel structure is correspondingly connected with a supporting steel structure. The hydraulically pressurized sealed electrochemical cell provided by the invention has the following advantages: the sealing pressure is higher, and the sealing effect is better; the fluid pressure inside the electrochemical cell body is higher; the pressurization sealing and disassembly maintenance operation of the electrochemical cell body are more convenient; the number of the electrochemical cell body units can be adjusted; the sealing pressure of the electrochemical cell body is visible, and the operation is safer.
Description
Technical Field
The invention relates to the technical field of electrochemical cells, in particular to a hydraulic pressure boosting type sealed electrochemical cell.
Background
Hydrogen is used as a fuel, a reducing agent, a coolant, etc., and has wide applications in actual life. The hydrogen production by electrolyzing water is a convenient method for producing hydrogen. In recent years, with the rapid development of new energy such as photovoltaic energy, wind power energy and the like, hydrogen production by water electrolysis is receiving more and more attention as an energy storage scheme for balancing a power grid. The high cost and the much energy consumption always restrict the development of hydrogen production by water electrolysis. The rate and efficiency of hydrogen production by water electrolysis can be improved by methods of raising the temperature, increasing the conductivity of the electrolyte and the like.
Taking an alkaline cell as an example, when potassium hydroxide is added to water, the conductivity of the solution is significantly improved. The alkaline electrolytic cell consists of a cathode, an anode and an ionic membrane. Charged ions can transport charge through ionic membranes. After power is applied, water is decomposed under a certain voltage to generate oxygen and hydrogen at the anode and the cathode, respectively. The reaction equation on the electrode in the electrolytic process of the alkaline electrolytic cell is as follows:
cathode: 4H2O +4e- → 2H2+4OH-
Anode: 4OH- → O2+4e- +2H2O
A battery: 2H2O → 2H2+ O2
In addition, pressurization is also one way to increase the rate of hydrogen production from water electrolysis. The internal pressure of a common pull rod pressurization type electrochemical cell is 0.1-3 MPa. In the using process, the hydrogen is usually under a certain pressure, for example, a certain hydrogenation reaction pressure reaches 5MPa, and the hydrogen pressure used by the hydrogenation station reaches 70 MPa. The tie-rod pressurized electrochemical cell is comprised of a tie rod, a nut, a gasket, an end plate, and an electrochemical cell module. The internal fluid pressure of the pull rod pressurization type electrochemical cell is low, the sealing performance is poor, the requirement of a customer on the gas pressure is difficult to meet, and a gas compressor is often required to be additionally arranged to increase the hydrogen pressure. In addition, the tie rod pressurized electrochemical cell has the disadvantage of difficult pressurized sealing and disassembly maintenance operations. Accordingly, there is a need to provide a hydraulically pressurized sealed electrochemical cell.
Disclosure of Invention
To overcome the deficiencies of the prior art, a hydraulically pressurized sealed electrochemical cell is provided.
The invention is realized by the following scheme:
the utility model provides a sealed electrochemical cell of hydraulic pressure booster-type, includes electrochemical cell body the both ends of electrochemical cell body correspond respectively and are equipped with fixed steel construction, fixed steel construction includes fixed steel construction and lower fixed steel construction, it corresponds with electrochemical cell body's upper end to go up fixed steel construction and is connected, the upper end and the hydraulic system of lower fixed steel construction correspond and are connected, hydraulic system's upper end corresponds with electrochemical cell body's lower extreme and is connected, the lower extreme and the support steel construction of lower fixed steel construction correspond and are connected.
The electrochemical cell body is round or square.
The screw rod is correspondingly arranged between the upper fixing steel structure and the lower fixing steel structure, and the screw rod is parallel to the screw rods, and the upper end and the lower end of the screw rod correspond to the upper fixing steel structure and the lower fixing steel structure through nuts respectively and are detachably connected with each other.
The upper fixing steel structure comprises I-shaped upper transverse steel which is transversely arranged, a pair of vertical reinforcing plates are arranged in the middle of the upper transverse steel, and the upper transverse steel of each reinforcing plate is correspondingly vertical;
the two ends of the upper part and the two ends of the lower part of the upper transverse steel are respectively and correspondingly provided with a first connecting sheet, a second connecting sheet, a third connecting sheet and a fourth connecting sheet, wherein the two screw rods respectively penetrate through the two side edges of the first connecting sheet and the third connecting sheet, the upper ends of the two side edges of the first connecting sheet and the third connecting sheet are respectively and correspondingly provided with nuts, and the nuts are correspondingly in threaded connection with the upper ends of the screw rods penetrating through the first connecting sheet;
the other two screw rods respectively penetrate through two side edges of the second connecting sheet and the fourth connecting sheet, nuts are correspondingly arranged at the upper ends of the two side edges of the second connecting sheet and the fourth connecting sheet respectively, and the nuts are correspondingly in threaded connection with the upper ends of the screw rods correspondingly penetrating through the second connecting sheet.
The width of the upper transverse steel is equal to that of the reinforcing plate.
And the two ends of the first connecting sheet, the second connecting sheet, the third connecting sheet and the fourth connecting sheet extend out of the side edge of the upper transverse steel.
The invention has the beneficial effects that:
1. the maximum working pressure of the hydraulic system of the hydraulic pressure booster-type sealed electrochemical cell can reach 70MPa, and the hydraulic system can be used for applying proper sealing pressure to the electrochemical cell body according to the use requirement, so that the electrochemical cell has higher sealing pressure and better sealing effect.
2. The fluid pressure in the electrochemical battery body is higher, the sealing pressure of the electrochemical battery body is higher, the sealing effect is better, and the fluid pressure in the electrochemical battery body can be improved by 0.5-5 times by using the hydraulic pressure boosting type sealing of the hydraulic system.
3. The electrochemical battery body pressurizing sealing and disassembling maintenance operation is more convenient, the pressurizing sealing and disassembling maintenance operation of the electrochemical battery body can be realized by using the sealing pressure of the electrochemical battery body which can be adjusted by a hydraulic system, and a screw rod and a nut are not required to be disassembled.
4. The electrochemical cell body of the present application has an adjustable number of cells, and because of the adjustable height of the hydraulic system, the electrochemical cell body can be increased or decreased within a certain range according to the rated hydrogen production of the hydrogen production device.
5. The sealing pressure of the electrochemical cell body of the application is visual, the operation is safer, and because the sealing pressure of the electrochemical cell body is equal to the pressure of the hydraulic system, the sealing pressure of the electrochemical cell body can be known through the pressure indication of the hydraulic system, and the electrochemical cell body is prevented from being damaged due to overhigh sealing pressure.
Drawings
Fig. 1 is a schematic front view of a hydraulically pressurized sealed electrochemical cell of the present invention;
fig. 2 is a schematic left side view of a hydraulically pressurized sealed electrochemical cell of the present invention;
fig. 3 is a schematic perspective view of a hydraulically pressurized sealed electrochemical cell of the present invention;
fig. 4 is a schematic top view of a hydraulically pressurized sealed electrochemical cell of the present invention;
in the figure: 1 is hydraulic system, 2 is electrochemical cell body, 3 is fixed steel construction, 31 is last fixed steel construction, 311 is last horizontal steel, 312 is the reinforcing plate, 313 is first connection piece, 314 is the second connection piece, 315 is the third connection piece, 316 is the fourth connection piece, 32 is lower fixed steel construction, 4 is the screw rod, 5 is the nut, 6 are the support steel construction.
Detailed Description
The preferred embodiments of the present invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-3, a sealed electrochemical cell of hydraulic pressure booster-type, including electrochemical cell body 2 the both ends of electrochemical cell body 2 correspond respectively and are equipped with fixed steel construction 3, fixed steel construction 3 includes fixed steel construction 31 and lower fixed steel construction 32, it corresponds with the upper end of electrochemical cell body 2 to go up fixed steel construction 31 and is connected, the upper end and the hydraulic system 1 of lower fixed steel construction 32 correspond and are connected, the upper end of hydraulic system 1 corresponds with the lower extreme of electrochemical cell body 2 and is connected, the lower extreme and the support steel construction 6 of lower fixed steel construction 32 correspond and are connected, and support steel construction 6 is located the bottommost of this application for support the whole device of this application. The hydraulic system 1 is composed of a power device, an execution device, a control element, a hydraulic pipeline and a working medium, the hydraulic system 1 is fixed on a fixed steel structure 3 at the lower part by using an embedded structure, and applies pressure to the electrochemical cell body 2 (the hydraulic system 1 applies pressure to a sealing ring and an end plate of the electrochemical cell 2, the specific principle and process are known technologies and are not described herein any more), the specific structure, connection relation, working principle and process are known technologies, and are not described herein any more.
The electrochemical cell body 2 is round or square, the specific shape and size are determined according to the requirements of customers, and relevant parts of the electrochemical cell body are correspondingly adjusted, so that the details are not repeated. The electrochemical cell body 2 includes a fuel cell, a proton exchange membrane electrolyzer, an alkaline electrolyzer, or an anionic membrane electrolyzer. The hydraulically supercharged sealed electrochemical cell can apply larger pressure to the sealing ring and the end plate of the electrochemical cell body, so that the fluid pressure in the electrochemical cell body has higher upper pressure limit. The sealing pressure of the electrochemical cell body is visible, so that the operation is safer; and the pressurization sealing and disassembly maintenance operation of the electrochemical cell body are more convenient, and the electrochemical cell units can be increased or reduced within a certain range according to the rated hydrogen production of the hydrogen production device.
As shown in fig. 4, a screw rod 4 is correspondingly arranged between the upper fixing steel structure 31 and the lower fixing steel structure 32, the screw rods 4 are arranged in parallel, and the upper and lower ends of the screw rods 4 are respectively connected with the upper fixing steel structure 31 and the lower fixing steel structure 32 through nuts 5 in a detachable manner. The screw rod is made of titanium alloy or stainless steel metal material.
The upper fixing steel structure 31 comprises a transverse steel 311 which is transversely arranged in an I shape, a pair of vertical reinforcing plates 312 are arranged in the middle of the transverse steel 311, and the transverse steel 311 of the reinforcing plates 312 is correspondingly vertical;
a first connecting piece 313, a second connecting piece 314, a third connecting piece 315 and a fourth connecting piece 316 are respectively and correspondingly arranged at two ends of the upper part and two ends of the lower part of the upper transverse steel 311, wherein the two screw rods 4 respectively penetrate through two sides of the first connecting piece 313 and the third connecting piece 315, nuts 5 are respectively and correspondingly arranged at the upper ends of the two sides of the first connecting piece 313 and the third connecting piece 315, and the nuts 5 are correspondingly and threadedly connected with the upper ends of the screw rods 4 penetrating through the first connecting piece 313;
the other two screw rods 4 respectively penetrate through two sides of the second connecting piece 314 and the fourth connecting piece 316, nuts 5 are correspondingly arranged at the upper ends of the two sides of the second connecting piece 314 and the fourth connecting piece 316 respectively, and the nuts 5 are correspondingly in threaded connection with the upper ends of the screw rods 4 correspondingly penetrating through the second connecting piece 314. The width of the upper cross steel 311 is equal to the width of the reinforcing plate 312. The two ends of the first connecting piece 313, the second connecting piece 314, the third connecting piece 315 and the fourth connecting piece 316 extend out of the side edge of the upper transverse steel 311. The electrochemical cell body 2 is placed between the upper and lower fixing steel structures 31 and 32, and the end plates of the electrochemical cell body are pressed by a hydraulic system.
The hydraulically pressurized sealed electrochemical cell provided by the invention has the following advantages: the sealing pressure is higher, and the sealing effect is better; the fluid pressure inside the electrochemical cell body is higher; the pressurization sealing and disassembly maintenance operation of the electrochemical cell body are more convenient; the number of the electrochemical cell body units can be adjusted; the sealing pressure of the electrochemical cell body is visible, and the operation is safer.
Although the invention has been described and illustrated in some detail, it should be understood that various modifications may be made to the described embodiments or equivalents may be substituted, as will be apparent to those skilled in the art, without departing from the spirit of the invention.
Claims (6)
1. A hydraulically pressurized sealed electrochemical cell comprising an electrochemical cell body (2), characterized in that: the both ends of electrochemical cell body (2) correspond respectively and are equipped with fixed steel construction (3), fixed steel construction (3) are including fixed steel construction (31) and lower fixed steel construction (32), it corresponds with the upper end of electrochemical cell body (2) to go up fixed steel construction (31) and is connected, the upper end and the hydraulic system (1) of lower fixed steel construction (32) correspond and are connected, the upper end of hydraulic system (1) corresponds with the lower extreme of electrochemical cell body (2) and is connected, the lower extreme and the support steel construction (6) of lower fixed steel construction (32) correspond and are connected.
2. A hydraulically pressurized sealed electrochemical cell according to claim 1, wherein: the electrochemical cell body (2) is round or square.
3. A hydraulically pressurized sealed electrochemical cell according to claim 1, wherein: go up fixed steel construction (31) and correspond between fixed steel construction (32) down and be equipped with screw rod (4), screw rod (4) and many that correspond parallel arrangement, many the upper and lower both ends of screw rod (4) correspond releasable connection through nut (5) and last fixed steel construction (31) and lower fixed steel construction (32) respectively.
4. A hydraulically pressurized sealed electrochemical cell according to claim 3, wherein: the upper fixing steel structure (31) comprises a transverse H-shaped upper transverse steel (311) which is transversely arranged, a pair of vertical reinforcing plates (312) is arranged in the middle of the upper transverse steel (311), and the upper transverse steel (311) of each reinforcing plate (312) is correspondingly vertical;
the two ends of the upper part and the two ends of the lower part of the upper transverse steel (311) are respectively and correspondingly provided with a first connecting sheet (313), a second connecting sheet (314), a third connecting sheet (315) and a fourth connecting sheet (316), wherein the two screws (4) respectively penetrate through the two sides of the first connecting sheet (313) and the third connecting sheet (315), the upper ends of the two sides of the first connecting sheet (313) and the third connecting sheet (315) are respectively and correspondingly provided with nuts (5), and the nuts (5) are correspondingly and threadedly connected with the upper ends of the screws (4) penetrating through the first connecting sheet (313);
the other two screw rods (4) respectively penetrate through two side edges of the second connecting piece (314) and the fourth connecting piece (316), nuts (5) are correspondingly arranged at the upper ends of the two side edges of the second connecting piece (314) and the fourth connecting piece (316), and the nuts (5) are correspondingly in threaded connection with the upper ends of the screw rods (4) correspondingly penetrating through the second connecting piece (314).
5. The hydraulically pressurized sealed electrochemical cell of claim 4, wherein: the width of the upper transverse steel (311) is equal to that of the reinforcing plate (312).
6. The hydraulically pressurized sealed electrochemical cell of claim 4, wherein: the two ends of the first connecting piece (313), the second connecting piece (314), the third connecting piece (315) and the fourth connecting piece (316) extend out of the side edge of the upper transverse steel (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111024600.8A CN113832474A (en) | 2021-09-02 | 2021-09-02 | Hydraulic pressure booster-type sealed electrochemical cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111024600.8A CN113832474A (en) | 2021-09-02 | 2021-09-02 | Hydraulic pressure booster-type sealed electrochemical cell |
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| Publication Number | Publication Date |
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| CN113832474A true CN113832474A (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111024600.8A Pending CN113832474A (en) | 2021-09-02 | 2021-09-02 | Hydraulic pressure booster-type sealed electrochemical cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114196977A (en) * | 2022-01-25 | 2022-03-18 | 厦门仲鑫达氢能技术有限公司 | Vertical electrolytic stack with mosaic structure |
-
2021
- 2021-09-02 CN CN202111024600.8A patent/CN113832474A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114196977A (en) * | 2022-01-25 | 2022-03-18 | 厦门仲鑫达氢能技术有限公司 | Vertical electrolytic stack with mosaic structure |
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