CN114927740A - Fuel cell stack and compression assembly method thereof - Google Patents
Fuel cell stack and compression assembly method thereof Download PDFInfo
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- CN114927740A CN114927740A CN202210500259.7A CN202210500259A CN114927740A CN 114927740 A CN114927740 A CN 114927740A CN 202210500259 A CN202210500259 A CN 202210500259A CN 114927740 A CN114927740 A CN 114927740A
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- fuel cell
- end plates
- cell stack
- repeating units
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- 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
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- 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
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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
- Y02E60/50—Fuel cells
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Abstract
The invention discloses a fuel cell stack and a pressing assembly method thereof, wherein the fuel cell stack comprises a tension part, a fuel cell repeating unit and two main end plates, wherein the tension part comprises two auxiliary end plates and an elastic assembly arranged between the two auxiliary end plates; the number of the fuel cell repeating units is a plurality, each fuel cell repeating unit comprises a plurality of pole pieces, and the tensioning component is clamped between every two adjacent fuel cell repeating units; the two main end plates are respectively arranged at two end sides of the plurality of fuel cell repeating units; the binding bands are bound and wound on the periphery of the whole cell stack formed by stacking the fuel cell repeating units, the two main end plates and the tensioning part. When not influencing the external power output of galvanic pile, reduced the thickness that single galvanic pile piled up, improved the precision that the galvanic pile piled up, through elastic component to two elasticity of assisting the end plate for two are assisted the end plate and have the trend of keeping away from each other, compress tightly a plurality of fuel cell repeating unit in the bandage.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a fuel cell stack and a compression assembly method thereof.
Background
Fuel cells are an important direction of research as efficient devices for utilizing hydrogen energy. The voltage generated by a single fuel cell is about 0.7V, which is often not enough to meet the use requirement, so a plurality of fuel cells are usually stacked to form a stack, and one stack usually contains several hundred fuel cells. When the number of fuel cells stacked in a stack is high, the following problems are often accompanied: (1) in order to ensure the gas flow required by the reaction, the more the number of stacked burning battery units is, the larger the gas and cooling medium inlet and outlet of the electric pile need to be, so that the volume and the weight of the fuel cell become larger; (2) the difficulty of stacking fuel cells evenly and neatly increases with the number of stacked fuel cells, which easily affects the performance and life of the fuel cells.
When fuel cells are stacked, problems with stack compression are also involved. The compaction mode of the electric pile is generally divided into two modes, one mode is a screw mode, and the other mode is a binding band mode. The electric pile adopting screw type compression is always larger in end plate area due to the fact that the space for installing the screw needs to be reserved, and then the size and the weight of the electric pile are increased. The bandage type electric pile often causes uneven distribution of pressing force for the electric pile, and fuel cells are easy to displace during assembly, so that the fuel cell stack is uneven and irregular, and the performance of the electric pile is influenced.
Disclosure of Invention
The present invention is directed to a fuel cell stack and a method for assembling the same, which solves one or more of the problems of the prior art, and provides at least one of the advantages of the present invention.
The technical scheme adopted for solving the technical problems is as follows:
first, the present invention provides a fuel cell stack comprising: the fuel cell comprises a tensioning part, a fuel cell repeating unit and two main end plates, wherein the tensioning part comprises two auxiliary end plates and an elastic assembly arranged between the two auxiliary end plates; the number of the fuel cell repeating units is a plurality, each fuel cell repeating unit comprises a plurality of pole pieces which are stacked in sequence, the plurality of fuel cell repeating units are arranged side by side in sequence, and the tensioning component is clamped between every two adjacent fuel cell repeating units; the two main end plates are respectively arranged at two end sides of the plurality of fuel cell repeating units; the binding bands are bound around the periphery of the whole cell stack formed by stacking the fuel cell repeating units, the two main end plates and the tensioning component.
The fuel cell stack provided by the invention has the beneficial effects that: the electrode plates in the fuel cell stack are divided into a plurality of fuel cell repeating units, a plurality of electrode plates of each fuel cell repeating unit are stacked together in sequence, the thickness of stacking of a single stack is reduced while the output of the external power of the stack is not influenced, the stacking precision of the stack is improved, gas and cooling medium inlet and outlet of the fuel cell can be slightly smaller, the overall volume of the fuel cell is reduced, the stack is further fixed by tensioning components arranged between two adjacent fuel cell repeating units under the binding and fixing of a binding band, the elastic force of the elastic component on two auxiliary end plates is utilized to enable the two auxiliary end plates to have the trend of being away from each other, and the plurality of fuel cell repeating units are compressed in the binding band.
As a further improvement of the above technical solution, the number of the binding bands is plural, and the plural binding bands are provided at intervals on the outer periphery of the entire cell stack.
The number of the binding bands is determined according to the size of the fuel cell stack, and if the fuel cell stack is larger, more binding bands are selected for fixing.
As a further improvement of the above technical solution, the elastic assembly includes a plurality of elastic members, and the plurality of elastic members are uniformly distributed between the two auxiliary end plates.
This scheme adopts a plurality of elastic components to come to apply the elasticity of toward outer expansion to two auxiliary end plates, can make auxiliary end plate everywhere more even to fuel cell repeating unit's effort like this, avoids local stress too big and damage the pole piece to and cause the slope.
As a further improvement of the technical scheme, the elastic piece is a spring, and two ends of the spring are respectively abutted with the two auxiliary end plates.
The scheme adopts springs to apply elastic force, wherein the number and the size of the springs are determined according to the size of the galvanic pile.
As a further improvement of the technical scheme, a plurality of grooves are formed in the end face of one of the auxiliary end plates, and one end of the spring is sleeved in the groove.
This scheme has set up the recess and has come to fix a position the installation to the spring, can avoid the spring to produce slope and displacement like this, further improves two and assists the stability between the end plate for two are assisted the end plate and keep in the state of being parallel.
As a further improvement of the technical scheme, the end face of the other auxiliary end plate is a plane, and the other end of the spring is abutted to the plane. The planar structure is more uniformly stressed.
In addition, the invention also provides a compression assembly method of the fuel cell stack, which comprises the following specific steps:
step 1: arranging an elastic assembly between two auxiliary end plates, clamping and fixing the two auxiliary end plates together by using a fastening piece to form a tensioning part, and prefabricating a plurality of tensioning parts;
step 2: stacking a plurality of pole pieces together to form a fuel cell repeating unit, and prefabricating a plurality of fuel cell repeating units;
and 3, step 3: stacking two main end plates, a plurality of fuel cell repeating units and a plurality of tensioning parts to form a whole cell stack, wherein one tensioning part is clamped between every two adjacent fuel cell repeating units, and the two main end plates are respectively arranged on two end sides of the plurality of fuel cell repeating units;
and 4, step 4: integrally fixing the stacked cell stack by using a binding belt;
and 5: and (6) removing the fastener.
As a further improvement of the above technical solution, in the step, each tensioning member is clamped around the periphery between the two auxiliary end plates by a plurality of fasteners. A plurality of fasteners improve the stability of clamping between two auxiliary end plates and avoid the phenomenon that the two auxiliary end plates incline.
As a further improvement of the above technical solution, in the step, the number of pole pieces per repeating unit of the fuel cell is equal. Therefore, the installation accuracy of the tightly-pressed stack is high, the stress inside the fuel cell is uniform, and the operation life of the stack is long.
The compression assembly method provided by the invention has the beneficial effects that: because the installation of elastic component has precedence, often can cause the packing force for the pile to distribute unevenly, can make fuel cell take place the displacement, this technique fixes tensioning part in advance, compresses tightly elastic component and fixes two supplementary end plates through the fastener, and after finishing fixing the bandage, take off the fastener again, release elastic component's elasticity, effectively solve the uneven problem of pressure distribution that installation elastic component caused.
Drawings
The invention is further described with reference to the accompanying drawings and examples;
fig. 1 is a schematic structural diagram of an embodiment of a fuel cell stack according to the present invention, in which two arrows respectively indicate a left direction and a right direction;
FIG. 2 is an exploded view of one embodiment of a fuel cell stack according to the present invention;
FIG. 3 is a cross-sectional view of one embodiment of a fuel cell stack according to the present invention;
fig. 4 is a partially enlarged view a in fig. 3.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a", "an", etc. are used, the meaning is one or more, the meaning of a plurality is two or more, less, more, etc. are understood as excluding the present number, and more, less, more, etc. are understood as including the present number.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 4, the fuel cell stack of the present invention makes the following embodiments:
as shown in fig. 1 to 4, the fuel cell stack of the present embodiment includes a tension member, a fuel cell repeating unit 200, and a main end plate 300.
The fuel cell repeating unit 200 is formed by sequentially stacking a plurality of pole pieces 210, the plurality of pole pieces 210 of the present embodiment are sequentially stacked together along the left-right direction, the present embodiment is provided with two fuel cell repeating units 200, the two fuel cell repeating units 200 are arranged at left-right intervals, in other embodiments, a plurality of fuel cell repeating units 200 can be arranged according to the size of the fuel cell, and the plurality of fuel cell repeating units 200 are sequentially arranged side by side left-right.
The tensioning members are arranged between the two fuel cell repeating units 200, in other and some embodiments, the number of the tensioning members is set according to the number of the fuel cell repeating units 200, if three fuel cell repeating units 200 are provided, two tensioning members are arranged, that is, if the number of the fuel cell repeating units 200 is N, the number of the tensioning members is N-1, the tensioning members mainly include two auxiliary end plates 100 arranged in parallel left and right, and an elastic assembly installed between the two auxiliary end plates 100, the elastic assembly is used for providing elastic force for the two auxiliary end plates 100 to be away from each other, that is, the elastic assembly makes the two auxiliary end plates 100 expand left and right, the two auxiliary end plates 100 respectively abut against one end of the two adjacent fuel cell repeating units 200, the left end face of the left auxiliary end plate 100 abuts against the right end of the left fuel cell repeating unit 200, and the right end face of the right-side auxiliary end plate 100 interferes with the left end of the right-side fuel cell repeating unit 200.
The left end and the right end of the whole cell stack formed by stacking the two fuel cell repeating units 200 and the tensioning parts are respectively provided with a main end plate 300, the main end plates 300 are tightly attached to the outer end parts of the fuel cell repeating units 200, and the two main end plates 300 mainly play a role in bearing acting force.
The binding band 400 is bound around the periphery of the whole cell stack, the binding band 400 applies mutually approaching acting force to the two fuel cell repeating units 200 and the tensioning part through the two main end plates 300, and the elastic component applies mutually departing elastic force to the two auxiliary end plates 100, so that the fuel cell repeating units 200 are pressed between the auxiliary end plates 100 and the main end plates 300.
The auxiliary end plate 100 has the further effect that the fuel cell can be divided into two parts by two auxiliary end plates 100, the auxiliary end plate 100 completely isolates the two parts of the fuel cell repeating units 200, namely, water and gas can not pass through the auxiliary end plate 100, the number of the pole pieces 210 of each part of the fuel cell repeating units 200 is reduced, thereby improving the stacking precision of the whole fuel cell, at the moment, only the fuel cell repeating units 200 need to be accurately stacked, and compared with the prior art, the stacking operation of the whole fuel cell stack is carried out, and the stacking difficulty is greatly reduced.
Wherein the number of the bands 400 is determined according to the size of the fuel cell stack, two bands 400 are provided in the present embodiment, and the two bands 400 are arranged in an up-down spaced arrangement.
In other embodiments, if the fuel cell stack is larger, more straps 400 are selected for fixation, and three or more straps may be selected.
Further, in order to improve stability and parallelism between two supplementary end plates 100, the elastic component of this embodiment is provided with a plurality of elastic components, and a plurality of elastic components evenly arrange between two supplementary end plates 100, and this embodiment adopts a plurality of elastic components to come to apply the elasticity of past outer expansion to two supplementary end plates 100, can make supplementary end plate 100 everywhere more even to fuel cell repeating unit 200's effort like this, avoids local stress too big and damages pole piece 210 to and cause the slope.
As shown in fig. 3 and fig. 4, the spring 500 is adopted as the elastic member of the present embodiment, the spring 500 is arranged to extend left and right, two ends of the spring 500 respectively abut against the end surfaces of the two auxiliary end plates 100, the present embodiment adopts the spring 500 to apply the elastic force, wherein the number and the size of the spring 500 can be determined according to the size of the stack.
Further, the right end face of the left auxiliary end plate 100 is provided with a plurality of grooves 110, the grooves 110 correspond to the springs 500 one by one, the left end of each spring 500 is sleeved in each groove 110, the left end of each spring 500 is abutted to the bottom of each groove 110, the right end of each spring 500 is abutted to the left end face of the right auxiliary end plate 100, the grooves 110 are arranged to position and install the springs 500, the springs 500 can be prevented from inclining and displacing, the stability between the two auxiliary end plates 100 is further improved, and the two auxiliary end plates 100 are kept in a parallel state.
The left end face of the auxiliary end plate 100 on the right side of the present embodiment is of a planar structure, and the stress of the planar structure is more uniform.
In addition, the embodiment also provides a compression assembly method suitable for the fuel cell stack, which comprises the following specific operation steps:
step 1: the plurality of springs 500 are arranged between the two auxiliary end plates 100, the two auxiliary end plates 100 are clamped and fixed together through fasteners to form tensioning parts, one auxiliary end plate 100 is provided with a groove 110, when the two auxiliary end plates 100 are clamped together, the springs 500 can be completely pressed in the groove 110, the two auxiliary end plates 100 are mutually attached together, thus the two auxiliary end plates 100 can be kept in a mutually parallel state, the pressure generated by each spring 500 between the two auxiliary end plates 100 after being pressed is the same, and the plurality of tensioning parts are prefabricated;
and 2, step: stacking a set number of pole pieces 210 according to the size of the electric stack and the set number to form a fuel cell repeating unit 200, and prefabricating a plurality of fuel cell repeating units 200;
and step 3: stacking the main end plate 300, the fuel cell repeating units 200, the tensioning members, the fuel cell repeating units 200 and the main end plate 300 left and right in sequence to form a whole cell stack, wherein the two main end plates 300 are respectively abutted against the ends of the two fuel cell repeating units 200;
and 4, step 4: the stacked cell stacks are integrally bound and fixed by two binding bands 400;
and 5: and (3) loosening the fasteners, removing the fasteners, namely loosening the two auxiliary end plates 100 fixed together, releasing the spring 500, and pressing the electric pile by using the elastic force of the spring 500.
Further, this embodiment sets up a plurality of fasteners, and a plurality of fasteners are around setting up around between two supplementary end plates 100, and a plurality of fasteners have improved the stability of pressing from both sides tightly between two supplementary end plates 100, avoid two supplementary end plates 100 to appear the phenomenon of slope, and wherein the fastener adopts the C type clamp of conventional band bolt.
The installation accuracy of the tightly-assembled galvanic pile is high, the internal stress of the fuel cell is uniform, the running life of the galvanic pile is long, the number of the pole pieces 210 in each fuel cell repeating unit 200 is the same, the installation accuracy of the tightly-assembled galvanic pile is high, the internal stress of the fuel cell is uniform, and the running life of the galvanic pile is long.
For example, for a fuel cell stack having 300 electrode plates 210 stacked, the 300 electrode plates 210 are divided into two parts, 150 of each part, and stacked separately, while for a fuel cell stack having 260 electrode plates 210 stacked, the 260 electrode plates 210 are divided into two parts, 130 of each part, and stacked separately.
The thickness of the stack of a single electric pile is reduced and the stacking precision of the electric pile is improved while the output of the external power of the electric pile is not influenced, so that the gas and cooling medium inlets and outlets of the fuel cell can be set to be slightly smaller, and the integral volume of the fuel cell is reduced.
In some embodiments, the spring 500 may be flat.
For a fuel cell stack formed by stacking 300 pole pieces 210, because there are more pole pieces 210, in order to improve the assembly precision and reduce the volume of a single stack, the fuel cell stack structure of the present invention is used for compressing and packaging, and the compressing and assembling steps are as follows:
step 1: clamping and fixing the two auxiliary end plates 100 together through fasteners to form tensioning parts, and prefabricating a plurality of the tensioning parts;
and 2, step: dividing 300 pole pieces 210 into two parts, 150 pieces each, and stacking up to form two fuel cell repeating units 200;
and step 3: stacking the main end plates 300, the 150 fuel cell repeating units 200, the tensioning members, the 150 fuel cell repeating units 200 and the main end plates 300 on the left and right in sequence to form a whole cell stack;
and 4, step 4: the stacked cell stacks are integrally bound and fixed by three binding bands 400;
and 5: and (3) loosening the fasteners, removing the fasteners, namely loosening the two auxiliary end plates 100 fixed together, releasing the spring 500, and pressing the electric pile by using the elastic force of the spring 500.
Under the binding and fixing of the binding band 400, the tensioning component arranged between two adjacent fuel cell repeating units 200 further compresses and fixes the stack, and the two auxiliary end plates 100 have a tendency to be away from each other by the elastic force of the spring 500 on the two auxiliary end plates 100, so that the two fuel cell repeating units 200 are compressed between the two main end plates 300.
The whole galvanic pile is compressed and fixed, and the problem that the elasticity generated by the spring 500 is uneven in the process of compressing the galvanic pile is effectively solved.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (9)
1. A fuel cell stack characterized by: it comprises the following steps:
the tensioning component comprises two auxiliary end plates (100) and an elastic component arranged between the two auxiliary end plates (100);
the fuel cell comprises a plurality of fuel cell repeating units (200), wherein each fuel cell repeating unit (200) comprises a plurality of pole pieces (210) which are sequentially stacked, the plurality of fuel cell repeating units (200) are sequentially arranged side by side, and the tensioning component is clamped between every two adjacent fuel cell repeating units (200);
two main end plates (300), wherein the two main end plates (300) are respectively arranged at two end sides of a plurality of fuel cell repeating units (200);
and the binding bands (400) are bound and wound on the periphery of the whole cell stack formed by stacking the plurality of fuel cell repeating units (200), the two main end plates (300) and the tensioning parts.
2. A fuel cell stack according to claim 1, wherein:
the number of the binding bands (400) is multiple, and the binding bands (400) are arranged on the periphery of the whole cell stack at intervals.
3. A fuel cell stack according to claim 1, wherein:
the elastic assembly includes a plurality of elastic members.
4. A fuel cell stack according to claim 3, wherein:
the elastic piece is a spring (500), and two ends of the spring (500) are respectively abutted to the two auxiliary end plates (100).
5. A fuel cell stack according to claim 4, wherein:
the end face of one auxiliary end plate (100) is provided with a plurality of grooves (110), and one end of the spring (500) is sleeved in the groove (110).
6. A fuel cell stack according to claim 5, wherein:
the end face of the other auxiliary end plate (100) is a plane, and the other end of the spring (500) is abutted to the plane.
7. A compression assembly method of a fuel cell stack is characterized in that: the method comprises the following specific steps:
step 1: the two auxiliary end plates (100) are clamped and fixed together by using a fastener to form a tensioning part;
step 2: stacking a plurality of pole pieces (210) together to form a fuel cell repeat unit (200);
and step 3: two main end plates (300), a plurality of fuel cell repeating units (200) and a plurality of tensioning components are stacked to form a whole cell stack, one tensioning component is clamped between every two adjacent fuel cell repeating units (200), and the two main end plates (300) are respectively arranged on two end sides of the plurality of fuel cell repeating units (200);
and 4, step 4: integrally fixing the stacked cell stacks by using a binding band (400);
and 5: and (6) removing the fastener.
8. The press-fitting method of a fuel cell stack according to claim 7, characterized in that:
a plurality of fasteners are used to clamp around the circumference between the two secondary endplates (100).
9. The compression assembling method of a fuel cell stack according to claim 7, wherein:
the number of pole pieces (210) per fuel cell repeat unit (200) is equal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210500259.7A CN114927740B (en) | 2022-05-07 | 2022-05-07 | Fuel cell stack and compression assembly method thereof |
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| CN202210500259.7A CN114927740B (en) | 2022-05-07 | 2022-05-07 | Fuel cell stack and compression assembly method thereof |
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| CN114927740B CN114927740B (en) | 2023-09-19 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306821A (en) * | 2011-07-08 | 2012-01-04 | 清华大学 | End plate pressing component of redox flow cell galvanic pile |
| CN205406640U (en) * | 2016-02-23 | 2016-07-27 | 湖南省银峰新能源有限公司 | Vanadium cell pile |
| CN107146904A (en) * | 2017-04-07 | 2017-09-08 | 上海电气集团股份有限公司 | Fuel cell end plate combination, the combination of distant place end plate, sheet inlet combination and pile |
| CN108923057A (en) * | 2018-06-07 | 2018-11-30 | 广东国鸿氢能科技有限公司 | A kind of pre-assembled method of fuel cell pile |
| CN210074048U (en) * | 2019-04-25 | 2020-02-14 | 众泰新能源汽车有限公司 | Bandage type pressing assembly structure of fuel cell stack |
| CN210607482U (en) * | 2019-11-01 | 2020-05-22 | 浙江锋源氢能科技有限公司 | Unit fuel cell stack, fuel cell stack structure and fuel cell |
| CN211605305U (en) * | 2020-03-31 | 2020-09-29 | 潍柴动力股份有限公司 | Electric pile end plate assembly and proton exchange membrane fuel cell |
| US20200350603A1 (en) * | 2018-01-19 | 2020-11-05 | Audi Ag | Fuel cell system having improved gas diffusion layers and motor vehicle having a fuel cell system |
| CN112510238A (en) * | 2020-11-30 | 2021-03-16 | 北京英博新能源有限公司 | Method for fixing fuel cell stack |
| CN213779418U (en) * | 2020-12-25 | 2021-07-23 | 大同新研氢能源科技有限公司 | Bandage formula galvanic pile frock of leaking hunting and device of leaking hunting |
-
2022
- 2022-05-07 CN CN202210500259.7A patent/CN114927740B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306821A (en) * | 2011-07-08 | 2012-01-04 | 清华大学 | End plate pressing component of redox flow cell galvanic pile |
| CN205406640U (en) * | 2016-02-23 | 2016-07-27 | 湖南省银峰新能源有限公司 | Vanadium cell pile |
| CN107146904A (en) * | 2017-04-07 | 2017-09-08 | 上海电气集团股份有限公司 | Fuel cell end plate combination, the combination of distant place end plate, sheet inlet combination and pile |
| US20200350603A1 (en) * | 2018-01-19 | 2020-11-05 | Audi Ag | Fuel cell system having improved gas diffusion layers and motor vehicle having a fuel cell system |
| CN108923057A (en) * | 2018-06-07 | 2018-11-30 | 广东国鸿氢能科技有限公司 | A kind of pre-assembled method of fuel cell pile |
| CN210074048U (en) * | 2019-04-25 | 2020-02-14 | 众泰新能源汽车有限公司 | Bandage type pressing assembly structure of fuel cell stack |
| CN210607482U (en) * | 2019-11-01 | 2020-05-22 | 浙江锋源氢能科技有限公司 | Unit fuel cell stack, fuel cell stack structure and fuel cell |
| CN211605305U (en) * | 2020-03-31 | 2020-09-29 | 潍柴动力股份有限公司 | Electric pile end plate assembly and proton exchange membrane fuel cell |
| CN112510238A (en) * | 2020-11-30 | 2021-03-16 | 北京英博新能源有限公司 | Method for fixing fuel cell stack |
| CN213779418U (en) * | 2020-12-25 | 2021-07-23 | 大同新研氢能源科技有限公司 | Bandage formula galvanic pile frock of leaking hunting and device of leaking hunting |
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| Publication number | Publication date |
|---|---|
| CN114927740B (en) | 2023-09-19 |
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