CN114824407A - Solid oxide fuel cell stack - Google Patents
Solid oxide fuel cell stack Download PDFInfo
- Publication number
- CN114824407A CN114824407A CN202210407304.4A CN202210407304A CN114824407A CN 114824407 A CN114824407 A CN 114824407A CN 202210407304 A CN202210407304 A CN 202210407304A CN 114824407 A CN114824407 A CN 114824407A
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- solid oxide
- oxide fuel
- cell stack
- airflow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 30
- 239000007787 solid Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000003566 sealing material Substances 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 33
- 239000000956 alloy Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2455—Grouping of fuel cells, e.g. stacking of fuel cells with liquid, solid or electrolyte-charged reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
- H01M8/04208—Cartridges, cryogenic media or cryogenic reservoirs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/2475—Enclosures, casings or containers of fuel cell stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
- H01M8/2485—Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to a solid oxide fuel cell stack, which comprises a stack core, support plates arranged at the top and the bottom of the stack core, and airflow cavities fixed on four side surfaces of the stack core through sealing materials; according to the invention, the fastening cover is arranged on the outer side of the airflow cavity for fastening, so that the airflow cavity of the galvanic pile is tightly combined with the reactor core of the galvanic pile in the working process, and the lateral sealing failure of the galvanic pile, gas leakage and influence on the battery performance caused by the separation of the airflow cavity and the reactor core of the galvanic pile are avoided.
Description
Technical Field
The invention relates to the technical field of solid oxide fuel cells, in particular to a solid oxide fuel cell stack.
Background
From the development trend at home and abroad, solving the energy crisis has become an important issue. At present, widely used fossil energy belongs to non-renewable energy, and the increasing material demand of human causes a large amount of energy consumption, which causes the lack of traditional energy. Meanwhile, the combustion of fossil energy causes serious environmental pollution, and thus, the search for advanced, reliable, efficient and clean energy is urgently needed. Based on long-term research on renewable energy, fuel cells are considered as one of the important approaches to address the energy crisis.
The Solid Oxide Fuel Cell (SOFC) belongs to clean energy, can directly convert chemical energy in Fuel (natural gas, hydrocarbon, coal, petroleum and the like) into electric energy, and has wide application prospect. The flat-plate solid oxide fuel cell has the advantages of high efficiency, cleanness, high power density, wide fuel source, low preparation cost and the like, and is an effective power generation device which is acknowledged to solve the energy problem at present.
However, the open-circuit voltage of the single-chip battery is limited by the nernst equation and generally does not exceed 1.2V, and the working voltage is reduced along with the increase of the current. Therefore, in order to obtain higher voltage, single fuel cells are required to be connected in series into a stack, thereby forming a flat plate type solid oxide fuel cell stack.
The conventional flat-plate solid oxide fuel cell stack has two stack structure designs of an inner flow cavity and an outer flow cavity, wherein the outer flow cavity stack generally consists of an upper support plate, a lower support plate, a stack core clamped between the upper support plate and the lower support plate and four airflow cavities hermetically connected around the stack core; the airflow cavity is connected with the reactor core through a sealing material. However, because the use temperature of the flat-plate solid oxide fuel cell stack is high, the sealing material can be subjected to thermal expansion or component volatilization along with the rise of the temperature, so that the sealing interface is damaged, the airflow cavity is displaced to be separated from the reactor core of the stack, the lateral sealing failure of the stack can be caused, gas leakage can be caused, and the cell performance can be reduced.
Therefore, there is a need to provide a new technical solution to overcome the above-mentioned drawbacks.
Disclosure of Invention
The present invention aims to provide a solid oxide fuel cell stack which can effectively solve the technical problems.
In order to achieve the purpose of the invention, the following technical scheme is adopted:
a solid oxide fuel cell stack comprises a stack core, support plates arranged at the top and the bottom of the stack core, and airflow chambers fixed on four sides of the stack core through sealing materials; and a fastening cover is sleeved on the outer side of the airflow cavity and is in sliding connection with the airflow cavity.
Preferably, the fastening cover includes:
side plates: the air flow cavities correspond to the air flow cavities one by one, and every two adjacent side plates are fixedly connected through a connecting block;
pressing a plate: between the side plate and the airflow chamber;
and, an elastic member: the air flow cavity is uniformly arranged between the side plate and the pressing plate and used for providing pressure for the pressing plate to press the air flow cavity.
Preferably, the expansion coefficient of the alloy material adopted by the elastic element is larger than that of the alloy material adopted by the airflow cavity.
Preferably, the elastic member is provided as a cylindrical spring.
Preferably, one surface of the side plate, which faces the pressure plate, is provided with a groove, and the elastic piece is installed in the groove.
Preferably, one surface of the airflow cavity, which is attached to the pressure plate, is provided with a vertical positioning groove, and the pressure plate is connected in the vertical positioning groove in a sliding manner.
Preferably, the vertical positioning groove and the pressing plate are both arranged in a T shape and are in concave-convex fit.
Preferably, notches are formed in two sides of one side, facing the pressure plate, of the side plate, and the airflow cavity is partially wrapped in the notches.
Preferably, a locking notch is formed in the inner side of the bottom of the notch, and a locking strip is fixedly arranged at a position of the pressing plate corresponding to the locking notch.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the fastening cover airflow cavity is arranged on the outer side of the airflow cavity for fastening, so that the airflow cavity and the reactor core of the electric pile can be tightly combined in the working process of the electric pile, and the phenomenon that the lateral sealing of the electric pile is invalid and gas is leaked to influence the battery performance due to the separation of the airflow cavity and the reactor core of the electric pile is avoided.
2. According to the structure of the fastening cover, the airflow cavity is tightly locked between the side plate and the pressing plate through the matching of the side plate, the pressing plate, the elastic piece and the airflow cavity, so that the airflow cavity can be effectively prevented from displacing in the working process of a galvanic pile, and the sealing property between the airflow cavity and the reactor core of the galvanic pile is further improved; meanwhile, by adopting the elastic part with the expansion coefficient larger than that of the airflow cavity, the pressure of the elastic part on the pressing plate is continuously increased along with the rise of the temperature in the high-temperature working process of the galvanic pile, so that the fastening force between the pressing plate and the airflow cavity is continuously increased, the sealing interface between the airflow cavity and the reactor core of the galvanic pile is reinforced, and a good sealing effect is further achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
Fig. 1 is a schematic structural diagram of a solid oxide fuel cell stack according to the present invention;
FIG. 2 is a schematic diagram of an exploded structure of a solid oxide fuel cell stack according to the present invention;
fig. 3 is a partially exploded structural schematic view of a solid oxide fuel cell stack according to the present invention.
Numerical description in the figures:
1. a reactor core; 2. a support plate;
3. an airflow chamber; 31. a vertical positioning groove;
4. a fastening cover; 41. a side plate; 411. a recess; 412. locking the opening; 413. a groove;
42. pressing a plate; 43. an elastic member; 44. connecting blocks; 45. and (4) locking the strip.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the invention. When an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
The following will make clear and complete description of a solid oxide fuel cell stack according to the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention provides a solid oxide fuel cell stack, which includes a stack core 1, a support plate 2, an airflow chamber 3, and a fastening cover 4. The reactor core 1 is formed by stacking metal pieces, sealing pieces and flat solid oxide cells and is cuboid; the support plates 2 are installed on the top surface and the bottom surface of the reactor core 1 to provide support for the reactor core 1; meanwhile, a positioning boss is arranged on a supporting plate 2 at the bottom of the reactor core 1 to support the airflow cavity 3 and the bottom of the fastening cover 4, so that the positioning and installation of the airflow cavity and the fastening cover are facilitated. The airflow cavities 3 are fixed on the front, rear, left and right side surfaces of the reactor core 1 through sealing materials; the four airflow cavities 3 are respectively two fuel gas airflow cavities 3 and two oxidizing gas airflow cavities 3; the four airflow chambers 3 are connected with the reactor core 1 into a whole through sealing materials, and are used for buffering the inlet and outlet of fuel gas and oxidizing gas.
The fastening cover 4 is slidably sleeved on the outer side of the airflow cavity 3 and used for fastening the airflow cavity 3, so that the airflow cavity 3 and the reactor core 1 are tightly combined in the working process of the reactor, and the phenomenon that the lateral sealing of the reactor fails due to the separation of the airflow cavity 3 and the reactor core 1, gas leakage and battery performance influence are avoided.
Specifically, in the present embodiment, the fastening cover 4 includes a side plate 41, a pressing plate 42, and an elastic member 43.
The side plate 41 is provided with 4 blocks which correspond to the airflow chambers 3 one by one; and every two adjacent curb plates 41 are connected fixedly through connecting block 44, and all have three connecting block 44 along the equidistant three-phase cloth of vertical direction between two adjacent curb plates 41. The pressing plate 42 is located between the side plate 41 and the airflow chamber 3, and the elastic members 43 are uniformly arranged between the side plate 41 and the pressing plate 42, and are used for providing pressure for the pressing plate 42 to press and press the airflow chamber 3.
A groove 413 is formed in one surface of the side plate 41 facing the pressing plate 42, the elastic piece 43 is filled in the groove 413, one end of the elastic piece is connected with the side plate 41, and the other end of the elastic piece is connected with the pressing plate 42; in addition, the expansion coefficient of the alloy material used for manufacturing the elastic member 43 is larger than that of the alloy material used for manufacturing the airflow chamber 3. In the process of high-temperature operation of the electric pile, along with temperature rise, the pressure of the elastic piece 43 on the pressing plate 42 is continuously increased, so that the fastening force between the pressing plate 42 and the airflow cavity 3 is continuously increased, the sealing interface between the airflow cavity 3 and the reactor core 1 of the electric pile is reinforced, and a good sealing effect is achieved.
Meanwhile, in this embodiment, a vertical positioning groove 31 is formed in one surface of the airflow chamber 3, which is attached to the pressing plate 42, the pressing plate 42 is slidably connected in the vertical positioning groove 31, and the vertical positioning groove 31 and the pressing plate 42 are both in a T shape and are in concave-convex fit; in addition, both sides of one surface of the side plate 41 facing the pressing plate 42 are provided with notches 411, and the airflow chamber 3 is partially covered in the notches 411; a locking notch 412 is formed at the inner side of the bottom of the notch 411, and a locking bar 45 is fixedly arranged at a position of the pressing plate 42 corresponding to the locking notch 412. Through the adoption of the matching between the structures, the airflow cavity 3 is locked between the side plate 41 and the pressing plate 42, so that the airflow cavity 3 can be effectively prevented from displacing in the working process of the electric pile, and the sealing performance between the airflow cavity 3 and the electric pile core 1 is further improved.
The assembly process of the invention is as follows: during the equipment, fixed backup pad 2, air current chamber 3 and galvanic pile reactor core 1 now, then cup joint the outside at air current chamber 3 with fastening cover 4 slip. In the initial state, the elastic member 43 is in a natural extension state, a sliding gap is formed between the locking strip 45 on the pressing plate 42 and the locking notch 412 on the side plate 41, when the fastening cover 4 is completely fastened with the airflow chamber 3, the elastic member 43 is in a compression state, and the locking strip 45 is tightly pressed with the locking notch 412.
Here, the high-temperature sealing material is provided between the airflow chamber 3 and the base surfaces of the pressure plate 42 and the side plate 41, and between the contact surfaces of the pressure plate 42 and the side plate 41.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described, and the content not described in detail in the specification belongs to the prior art known by persons skilled in the art.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
Claims (9)
1. A solid oxide fuel cell stack comprises a stack core, support plates arranged at the top and the bottom of the stack core, and airflow chambers fixed on four sides of the stack core through sealing materials; the method is characterized in that: and a fastening cover is sleeved on the outer side of the airflow cavity and is in sliding connection with the airflow cavity.
2. The solid oxide fuel cell stack of claim 1, wherein: the fastening cover includes:
side plates: the two adjacent side plates are connected and fixed through connecting blocks;
pressing a plate: between the side plate and the airflow chamber;
and, an elastic member: the air flow cavity is uniformly arranged between the side plate and the pressing plate and used for providing pressure for the pressing plate to press the air flow cavity.
3. The solid oxide fuel cell stack of claim 2, wherein: the expansion coefficient of the alloy material adopted by the elastic piece is larger than that of the alloy material adopted by the airflow cavity.
4. A solid oxide fuel cell stack according to claim 3, wherein: the elastic piece is a cylindrical spring.
5. The solid oxide fuel cell stack of claim 4, wherein: one side of the side plate, facing the pressure plate, is provided with a groove, and the elastic piece is arranged in the groove.
6. The solid oxide fuel cell stack of claim 2 or 5, wherein: the air flow cavity and one surface, which is attached to the pressing plate, are provided with vertical positioning grooves, and the pressing plate is connected in the vertical positioning grooves in a sliding mode.
7. The solid oxide fuel cell stack of claim 6, wherein: the vertical positioning groove and the pressing plate are both arranged in a T shape and are in concave-convex fit.
8. The solid oxide fuel cell stack of claim 7, wherein: notches are formed in two sides of one side, facing the pressing plate, of the side plate, and the airflow cavity is partially wrapped in the notches.
9. The solid oxide fuel cell stack of claim 8, wherein: the inner side of the bottom of the notch is provided with a locking notch, and a locking strip is fixedly arranged at the position of the pressing plate corresponding to the locking notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210407304.4A CN114824407A (en) | 2022-04-19 | 2022-04-19 | Solid oxide fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210407304.4A CN114824407A (en) | 2022-04-19 | 2022-04-19 | Solid oxide fuel cell stack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114824407A true CN114824407A (en) | 2022-07-29 |
Family
ID=82537228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210407304.4A Pending CN114824407A (en) | 2022-04-19 | 2022-04-19 | Solid oxide fuel cell stack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114824407A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602119A (en) * | 2016-12-30 | 2017-04-26 | 华中科技大学 | Self-tightening outer flow cavity solid oxide fuel cell stack |
| CN213905420U (en) * | 2020-12-23 | 2021-08-06 | 宁波索福人能源技术有限公司 | Solid oxide fuel cell stack pressure device |
| CN113991229A (en) * | 2021-10-25 | 2022-01-28 | 芜湖天弋能源科技有限公司 | Lithium battery pack and assembling device thereof |
-
2022
- 2022-04-19 CN CN202210407304.4A patent/CN114824407A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602119A (en) * | 2016-12-30 | 2017-04-26 | 华中科技大学 | Self-tightening outer flow cavity solid oxide fuel cell stack |
| CN213905420U (en) * | 2020-12-23 | 2021-08-06 | 宁波索福人能源技术有限公司 | Solid oxide fuel cell stack pressure device |
| CN113991229A (en) * | 2021-10-25 | 2022-01-28 | 芜湖天弋能源科技有限公司 | Lithium battery pack and assembling device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100873238B1 (en) | Mounting device of fuel cell stack | |
| CN102867978B (en) | Flow energy storage battery structure | |
| CN107611466A (en) | A kind of encapsulating structure of fuel cell pack | |
| CN207250647U (en) | A kind of package assembly of fuel cell pack | |
| CN107221679A (en) | Symmetrical electrode structure fuel cell prepared by a kind of nano composite material | |
| CN114824407A (en) | Solid oxide fuel cell stack | |
| KR101586455B1 (en) | Electrode current collector for redox flow battery, preparation method for the same, and redox flow battery | |
| KR101495434B1 (en) | Stack for Redox Flow Battery with Bipolar Plate Assembly and Bipolar Plate Tab | |
| WO2024016876A1 (en) | Solid-state battery module | |
| CN210516889U (en) | Pressure-bearing assembly structure of fuel cell module | |
| CN109216722A (en) | Thickness compensation formula fuel cell pack collector plate, fuel cell pack and its optimization method | |
| CN209880736U (en) | Membrane electrode for hydrogen energy proton exchange membrane fuel cell | |
| CN201877475U (en) | Positive pole sealing device of aluminum/magnesium alloy fuel cell | |
| CN207834415U (en) | A kind of integrated type battery module bracket | |
| CN207852818U (en) | A kind of plug type solid-oxide fuel cell stack structure | |
| CN201655892U (en) | Fuel battery splicing bipolar plate | |
| RU165161U1 (en) | BATTERY OF ELECTROCHEMICAL CELLS | |
| KR20130108660A (en) | Solid oxide fuel cell stack | |
| CN217361679U (en) | Special electric pile for fuel cell test platform | |
| CN219998268U (en) | Separator for fuel cell | |
| CN213459819U (en) | Fuel cell stack separator compensation structure | |
| CN217062200U (en) | Flat-plate type fuel cell | |
| CN215008452U (en) | High-performance green battery packaging structure | |
| CN220382134U (en) | Fuel cell bipolar plate | |
| CN217933864U (en) | Graphite bipolar plate for fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220729 |