CN109346757B - Fuel cell stack - Google Patents
Fuel cell stack Download PDFInfo
- Publication number
- CN109346757B CN109346757B CN201811336448.5A CN201811336448A CN109346757B CN 109346757 B CN109346757 B CN 109346757B CN 201811336448 A CN201811336448 A CN 201811336448A CN 109346757 B CN109346757 B CN 109346757B
- Authority
- CN
- China
- Prior art keywords
- plate
- flow field
- membrane electrode
- fuel
- cooling liquid
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 51
- 239000012528 membrane Substances 0.000 claims abstract description 42
- 239000007800 oxidant agent Substances 0.000 claims abstract description 28
- 230000001590 oxidative effect Effects 0.000 claims abstract description 28
- 239000000110 cooling liquid Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 28
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims description 3
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- -1 polyoxymethylene Polymers 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000011156 metal matrix composite Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 abstract description 12
- 238000007906 compression Methods 0.000 abstract description 9
- 230000006835 compression Effects 0.000 abstract description 8
- 230000000670 limiting effect Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- RFFFKMOABOFIDF-UHFFFAOYSA-N Pentanenitrile Chemical compound CCCCC#N RFFFKMOABOFIDF-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229920005560 fluorosilicone rubber Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
-
- 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
-
- 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
- H01M8/249—Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
-
- 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
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 provides a fuel cell stack, and belongs to the technical field of fuel cells. The battery pack is formed by stacking a plurality of single cells, a front end plate and a rear end plate are respectively arranged at the upper end and the lower end of the battery pack, a front end current collecting plate is arranged between the upper end of the battery pack and the front end plate, and a rear end current collecting plate is arranged between the lower end of the battery pack and the rear end plate; wherein, the single cell includes: the anode plate, the cathode plate and the membrane electrode are clamped between the anode plate and the cathode plate; a first limit boss is arranged around one surface of the anode plate facing the membrane electrode and used for fixing the position of the membrane electrode; a fuel flow field is arranged on one surface of the anode plate facing the membrane electrode; a second limiting boss is arranged on one surface of the cathode plate facing the membrane electrode, and an oxidant flow field is arranged on one surface of the cathode plate facing the membrane electrode. The electric pile can accurately control the compression amount of the gas diffusion layer of each membrane electrode, the performance uniformity of each single cell in the electric pile is good, and the service life of the electric pile is prolonged.
Description
Technical Field
The invention provides a fuel cell stack, and belongs to the technical field of fuel cells.
Background
The proton exchange membrane fuel cell (proton exchange membrane fuel cell, PEMFC) is a clean and environment-friendly electrochemical power generation device, and can be widely applied to various aspects of vehicles, stationary power generation, material handling, standby power supply, portable power supply and the like due to the advantages of small volume, light weight, mild operation condition, high energy conversion rate, simple structure, rapid response and the like. The hydrogen energy and fuel cell technology provides a new way for the utilization of clean energy systems. Hydrogen is widely available from a variety of sources, including both renewable and non-renewable sources. The hydrogen energy can become an energy carrier complementary to the electric power, so that the carbon emission of the current energy system is effectively reduced. Therefore, PEMFCs are considered to be the first clean and efficient power generation device in the 21 st century.
For a vehicle fuel cell engine, the life must reach a level comparable to that of a conventional engine, so that industrialization is possible. The U.S. department of energy hydrogen energy program, the japanese new energy and industry technical development committee and the european hydrogen energy and fuel cell technology forum all consider that there is a possibility of industrialization for vehicle fuel cell engine life of at least 5000h (passenger car) and 10000h (commercial car). Compared with static application environments (such as a power station or a mobile power supply), the vehicle-mounted environment and the working condition are worse, and the durability of the PEMFC engine is different from the expected durability to a certain extent. Among them, the life of the PEMFC stack is one of the important factors affecting the durability of the PEMFC engine.
The traditional electric pile is formed by stacking membrane electrodes and bipolar plates at intervals and then compacting, in the process, the total compression amount of the gas diffusion layers is controlled by adjusting the pressing force or the total length of the electric pile, and the performance gap between the single cells becomes larger and larger in the operation process, particularly after long-time operation, the short plate effect is generated and the service life of the electric pile is influenced due to the fact that the compression amount of the gas diffusion layers of the single cells in the electric pile is different due to the uneven distribution of the pre-tightening force in the electric pile in the compacting process, namely the compression amount of the gas diffusion layers of part of the single cells is larger and the compression amount of the gas diffusion layers of the part of the single cells is smaller.
For the traditional galvanic pile, when the galvanic pile tightness test is unqualified or the galvanic pile fails in the operation process, the galvanic pile is likely to be disassembled and checked, and the gas diffusion layer is repeatedly extruded due to repeated disassembly and assembly of the galvanic pile, so that the structure of the gas diffusion layer is irreversibly damaged, and the transmission of reaction gas and water is blocked, so that the service life of the galvanic pile is influenced.
In addition, the sealing performance of the electric pile is one of key factors influencing the service life of the electric pile, the gas sealing of the traditional electric pile is realized by adopting a five-in-one pressing structure of anode plates/anode side sealing gaskets/membrane electrode frames/cathode side sealing gaskets/cathode plates, the requirements on the accuracy of the heights of the anode side sealing gaskets and the cathode side sealing gaskets are higher, and the electric pile with the structure is easy to generate dislocation between the electrode plates under the vibration and impact environment, so that the air leakage problem is easy to generate, the electric pile cannot operate, and the service life of the electric pile is influenced.
Therefore, a new type of galvanic pile is needed, which can not only precisely control the compression amount of the gas diffusion layer of each membrane electrode, but also avoid irreversible damage caused by repeated extrusion of the gas diffusion layer due to the detachment of the galvanic pile when the galvanic pile fails, and can also reduce the requirement on the gas side sealing gasket and improve the service life of the galvanic pile.
Disclosure of Invention
The invention aims to provide a long-life fuel cell stack, which consists of a front end plate, a front end current collecting plate, N groups of novel single cells, a rear end flat plate, a rear end current collecting plate, a rear end plate, strapping tapes and sealing rings; the novel single cell is pressed by the novel anode plate, the membrane electrode, the public channel sealing gasket and the novel cathode plate until the membrane electrode frame is completely overlapped with the positive limiting boss of the anode plate and the positive surface of the cathode plate to form a sandwich structure, and the novel single cell is formed by locking the upper insulating clamping plate and the lower insulating clamping plate.
The technical proposal is as follows:
a fuel cell stack comprises a cell stack formed by stacking a plurality of single cells, wherein a front end plate and a rear end plate are respectively arranged at the upper end and the lower end of the cell stack, a front end current collecting plate is arranged between the upper end of the cell stack and the front end plate, and a rear end current collecting plate is arranged between the lower end of the cell stack and the rear end plate;
wherein, the single cell includes: the anode plate, the cathode plate and the membrane electrode are clamped between the anode plate and the cathode plate; a first limit boss is arranged around one surface of the anode plate facing the membrane electrode and used for fixing the position of the membrane electrode; a fuel flow field is arranged on one surface of the anode plate facing the membrane electrode; the periphery of the cathode plate facing the membrane electrode is provided with a second limit boss for fixing the position of the membrane electrode, and the surface of the cathode plate facing the membrane electrode is provided with an oxidant flow field.
In one embodiment, the membrane electrode is located inside the rectangular first and second spacing bosses.
In one embodiment, the number of single cells in the battery pack is 1 to 500.
In one embodiment, the battery pack, the front end plate and the rear end plate are integrally fixed by strapping.
In one embodiment, a fuel inlet, a fuel outlet and a cooling liquid inlet are also arranged on the front end plate; a cooling liquid outlet, an oxidant inlet, and an oxidant outlet; the fuel inlet and the fuel outlet are communicated with the fuel flow field; the cooling liquid inlet and the cooling liquid outlet are communicated with a cooling liquid flow field; the oxidant inlet and the oxidant outlet are communicated with the oxidant flow field.
In one embodiment, the side of the cathode plate facing away from the membrane electrode is provided with a cooling fluid flow field; a cooling liquid sealing rubber pad is arranged around the cooling liquid flow field; the depth of the cooling liquid sealing rubber pad is 0.2-0.5 mm, and the width is 2-5 mm; the cooling liquid flow field is a parallel flow field, the depth of the flow field is 0.3-1.0 mm, the width of the flow field is 0.4-1.0 mm, and the ridge width is 0.4-1.0 mm.
In one embodiment, a back end plate is provided between the back end current collector and the battery.
In one embodiment, the flow channels between the anode and cathode plates are sealed by a common channel sealing gasket.
In one embodiment, the edge of the upper end of the anode plate is sleeved with an upper insulating clamping plate, and the edge of the lower end of the cathode plate is sleeved with a lower insulating clamping plate; the locking mode between the upper insulating clamping plate and the lower insulating clamping plate is bolt fastening or glue bonding fastening.
In one embodiment, the strapping tape is made of stainless steel or titanium, the number of the strapping tapes is 3-8, and the strapping tapes are arranged in a non-crossed way.
In one embodiment, the upper insulating clamping plate and the lower insulating clamping plate are made of glass fiber, polyoxymethylene, ABS engineering plastic or glass fiber reinforced nylon materials.
In one embodiment, the fuel flow field is a parallel flow field, the depth of the flow field is 0.3-1.0 mm, the width of the flow field is 0.4-1.0 mm, and the ridge width is 0.5-1.2 mm.
In one embodiment, the oxidant flow field is a parallel flow field, the depth of the flow field is 0.3-1.0 mm, the width of the flow field is 0.4-1.0 mm, and the ridge width is 0.4-1.2 mm.
In one embodiment, the materials of the front end plate invention and the rear end plate invention are glass fiber, polyoxymethylene, ABS engineering plastic or glass fiber reinforced nylon materials.
In one embodiment, the main materials of the front end current collecting plate invention and the rear end current collecting plate invention are brass, red copper, nickel, stainless steel or titanium.
In one embodiment, the anode plate invention, the cathode plate invention and the back end plate invention are made of graphite, metal matrix composite or carbon matrix composite.
Advantageous effects
Firstly, the anode plate and the cathode plate with the limiting bosses are adopted in the electric pile, so that the compression amount of the gas diffusion layer of each membrane electrode can be accurately controlled, the performance uniformity of each single cell in the electric pile is good, and the service life of the electric pile is prolonged.
Secondly, the upper and lower insulating clamping plates are used for clamping and fixing the anode plate, the membrane electrode and the cathode plate to form a single cell with a sandwich structure, so that irreversible damage caused by repeated extrusion of a gas diffusion layer caused by disassembly and assembly of the galvanic pile when the galvanic pile is in failure can be avoided, and the service life of the galvanic pile is prolonged.
Thirdly, the dislocation between the polar plates of the pile with the structure is not easy to occur under the vibration and impact environment, the air tightness of the pile is ensured, and the service life of the pile is prolonged.
Fourth, in addition, the sealing gasket at the oxidant side is also omitted in the pile structure, so that the pile production process flow is simplified, the pile production efficiency is improved, and meanwhile, the pile cost is reduced.
Fifthly, the elastic stranded ribbon is adopted to fix the whole electric pile, so that application distribution among the battery pieces is uniform, and the problem that in the prior art, due to uneven distribution of pretightening force inside the electric pile in the compression process, the compression amount of the gas diffusion layers of the single cells in the electric pile is different is solved.
Drawings
FIG. 1 is a structural effect diagram of a fuel cell stack
FIG. 2 is an exploded view of a fuel cell stack structure
FIG. 3 is a front effect diagram of a single cell
FIG. 4 is a negative effect diagram of a cell
FIG. 5 is an exploded view of a cell structure
FIG. 6 is a front effect diagram of a cathode plate
FIG. 7 negative plate effect diagram
Figure 8 is a front effect diagram of an anode plate
Figure 9 negative side effect diagram of anode plate
FIG. 10 is a schematic diagram of constant current life test conditions formulated by the conditions
1. A fuel inlet; 2. a fuel outlet; 3. a cooling liquid inlet; 4. a cooling liquid outlet; 5. an oxidant inlet; 6. an oxidant outlet; 7. a front end current collecting plate; 8. a rear-end current collecting plate; 9. a front end plate; 10. a rear end plate; 11. strapping tape; 12. a single cell; 13. a rear end plate; 14. an anode plate; 15. a cathode plate; 16. a membrane electrode; 17. an upper insulating clamping plate; 18. a lower insulating clamping plate; 19. a common channel sealing gasket; 20. a limit boss; 21. an oxidant flow field; 22. a cooling fluid flow field; 23. a cooling liquid sealing rubber pad; 24. a fuel seal cushion; 25. a fuel flow field; 26. The second limiting boss; 27. a rear end plate; 28. and (3) sealing rings.
Detailed Description
Example 1
In this example, a battery pack comprising 200 cells 12, the active area of the cells 12 being 250cm 2 Is provided.
As shown in fig. 1 and 2, the fuel cell stack comprises a cell stack formed by stacking a plurality of single cells 12, wherein a front end plate 9 and a rear end plate 10 are respectively arranged at the upper end and the lower end of the cell stack, a front end current collecting plate 7 is arranged between the upper end of the cell stack and the front end plate 9, and a rear end current collecting plate 8 is arranged between the lower end of the cell stack and the rear end plate 10; the battery pack, the front end plate 9 and the rear end plate 10 are integrally fixed through strapping 11, the strapping 11 is made of stainless steel or titanium, the number of the strapping 11 is 3-8, the strapping 11 is in non-crossed arrangement, a rear end flat plate 27 is arranged between the rear end current collecting plate 8 and the battery pack, and a flow passage between the anode plate 14 and the cathode plate 15 is sealed through a common passage sealing gasket 19. The front end plate 9 is also provided with a fuel inlet 1, a fuel outlet 2 and a cooling liquid inlet 3; a cooling liquid outlet 4, an oxidant inlet 5 and an oxidant outlet 6; the fuel inlet 1 and the fuel outlet 2 are communicated with a fuel flow field 25; the cooling liquid inlet 3 and the cooling liquid outlet 4 are communicated with the cooling liquid flow field 22; the oxidant inlet 5 and the oxidant outlet 6 are communicated with the oxidant flow field 21.
The single cell 12 includes: an anode plate 14, a cathode plate 15, and a membrane electrode 16. The front and rear structures of the unit cells 12 are shown in fig. 3 to 5, respectively, and the anode plate 15 is shown in fig. 8 and 9, and the cathode plate is shown in fig. 6 and 7. The membrane electrode 16 is sandwiched between the anode plate 14 and the cathode plate 15; a first limiting boss 20 is arranged around one surface of the anode plate 14 facing the membrane electrode 16 and is used for fixing the position of the membrane electrode 16; a fuel flow field 25 is arranged on one surface of the anode plate 14 facing the membrane electrode 16; a second limiting boss 26 is arranged on one surface of the cathode plate 15 facing the membrane electrode 16, an oxidant flow field 21 is arranged on one surface of the cathode plate 15 facing the membrane electrode 16, and a flow channel between the anode plate 14 and the cathode plate 15 is sealed through a common channel sealing gasket 19. The front end plate 9 and the single cells 12 are sealed by sealing rings 28.
The front surface of the anode plate 14 is provided with a fuel sealing rubber pad 24 and a fuel flow field 25, the back surface of the anode plate is a plane, the fuel flow field 25 is a parallel flow field, the depth of the flow field is 0.4mm, the width of the flow field is 0.8mm, and the ridge width is 0.6mm. The front surface of the cathode plate 15 is provided with an oxidant flow field 21 and a second limiting boss 26, the back surface of the cathode plate is provided with a cooling liquid sealing rubber pad 23 and a cooling liquid flow field 22, the oxidant flow field is a parallel flow field, the depth of the flow field is 0.4mm, the width of the flow field is 0.5mm, and the ridge width is 0.5mm; the coolant flow field 22 is a parallel flow field with a groove depth of 0.5mm, a groove width of 0.6mm, and a ridge width of 0.6mm.
The edge of the upper end of the anode plate 15 is sleeved with an upper insulating clamping plate 17, and the edge of the lower end of the cathode plate 15 is sleeved with a lower insulating clamping plate 18; the locking mode between the upper insulating clamping plate 17 and the lower insulating clamping plate 18 is bolt fastening or glue bonding fastening.
The public channel sealing gasket 19, the sealing ring 28, the fuel sealing rubber pad 24 and the cooling liquid sealing rubber pad 23 are made of silicon rubber, butyl cyanide rubber, fluorosilicone rubber, ethylene propylene diene rubber or chloroprene rubber.
The lifetime test of the rack was performed under the operation condition shown in fig. 10, and the test result revealed that when the output voltage of the stack was attenuated by about 5.92% after the stack was operated on the rack for 5000 hours, the operation lifetime of the stack was greater than 8500 hours (the stack lifetime was defined as the attenuation of the output voltage of the stack by 10%).
Claims (5)
1. The fuel cell stack is characterized by comprising a cell group formed by stacking a plurality of single cells (12), wherein a front end plate (9) and a rear end plate (10) are respectively arranged at the upper end and the lower end of the cell group, a front end current collecting plate (7) is arranged between the upper end of the cell group and the front end plate (9), and a rear end current collecting plate (8) is arranged between the lower end of the cell group and the rear end plate (10);
wherein the single cell (12) comprises: an anode plate (14), a cathode plate (15) and a membrane electrode (16), wherein the membrane electrode (16) is clamped between the anode plate (14) and the cathode plate (15); a first limit boss (20) is arranged around one surface of the anode plate (14) facing the membrane electrode (16) and used for fixing the position of the membrane electrode (16); a fuel flow field (25) is arranged on one surface of the anode plate (14) facing the membrane electrode (16); a second limit boss (26) is arranged on one surface of the cathode plate (15) facing the membrane electrode (16), and an oxidant flow field (21) is arranged on one surface of the cathode plate (15) facing the membrane electrode (16);
the membrane electrode (16) is positioned inside the rectangular first limit boss (20) and the rectangular second limit boss (26), and the number of the single cells (12) in the battery pack is 1-500; the battery pack, the front end plate (9) and the rear end plate (10) are fixed into a whole through strapping (11);
the front end plate (9) is also provided with a fuel inlet (1), a fuel outlet (2) and a cooling liquid inlet (3); a cooling liquid outlet (4), an oxidant inlet (5) and an oxidant outlet (6); the fuel inlet (1) and the fuel outlet (2) are communicated with the fuel flow field (25); the cooling liquid inlet (3) and the cooling liquid outlet (4) are communicated with the cooling liquid flow field (22); the oxidant inlet (5) and the oxidant outlet (6) are communicated with the oxidant flow field (21); a cooling fluid flow field (22) is arranged on one surface of the cathode plate (15) back to the membrane electrode (16); a cooling liquid sealing rubber pad (23) is arranged around the cooling liquid flow field (22); the depth of the cooling liquid sealing rubber pad is 0.2-0.5 mm, and the width is 2-5 mm; the cooling liquid flow field (22) is a parallel flow field, the depth of the flow field is 0.3-1.0 mm, the width of the flow field is 0.4-1.0 mm, and the ridge width is 0.4-1.0 mm;
the strapping tapes (11) are made of stainless steel or titanium, the number of the strapping tapes (11) is 3-8, and the strapping tapes (11) are arranged in a non-crossed way;
a rear end flat plate (27) is arranged between the rear end current collecting plate (8) and the battery pack; the flow channel between the anode plate (14) and the cathode plate (15) is sealed by a common channel sealing gasket (19); the edge of the upper end of the anode plate (14) is sleeved with an upper insulating clamping plate (17), and the edge of the lower end of the cathode plate (15) is sleeved with a lower insulating clamping plate (18); the locking mode between the upper insulating clamping plate (17) and the lower insulating clamping plate (18) is bolt fastening or glue bonding fastening.
2. The fuel cell stack according to claim 1, wherein the upper insulating clamping plate (17) and the lower insulating clamping plate (18) are made of glass fiber, polyoxymethylene, ABS engineering plastic or glass fiber reinforced nylon material; the fuel flow field (25) is a parallel flow field, the depth of the flow field is 0.3-1.0 mm, the width of the flow field is 0.4-1.0 mm, and the ridge width is 0.5-1.2 mm.
3. The fuel cell stack according to claim 1, characterized in that the oxidant flow field (21) is a parallel flow field, the depth of the flow field is 0.3-1.0 mm, the width of the flow field is 0.4-1.0 mm, and the ridge width is 0.4-1.2 mm; the oxidant flow field (21) is a parallel flow field, the depth of the flow field is 0.3-1.0 mm, the width of the flow field is 0.4-1.0 mm, and the ridge width is 0.4-1.2 mm.
4. The fuel cell stack according to claim 1, wherein the front end current collector plate (7) and the rear end current collector plate (8) are made of brass, red copper, nickel, stainless steel or titanium.
5. The fuel cell stack according to claim 1, wherein the anode plate (14), the cathode plate (15) and the rear end plate (10) are made of graphite, metal matrix composite or carbon matrix composite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336448.5A CN109346757B (en) | 2018-11-12 | 2018-11-12 | Fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336448.5A CN109346757B (en) | 2018-11-12 | 2018-11-12 | Fuel cell stack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109346757A CN109346757A (en) | 2019-02-15 |
| CN109346757B true CN109346757B (en) | 2024-03-22 |
Family
ID=65314729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811336448.5A Active CN109346757B (en) | 2018-11-12 | 2018-11-12 | Fuel cell stack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109346757B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113626B (en) * | 2021-03-25 | 2022-08-12 | 国家电投集团氢能科技发展有限公司 | Single cell and fuel cell |
| CN114400346A (en) * | 2021-12-03 | 2022-04-26 | 佛山仙湖实验室 | Integrated membrane electrode unit structure and fuel cell stack |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001015127A (en) * | 1999-06-28 | 2001-01-19 | Fuji Electric Co Ltd | Electrolytic film/electrode bonded body and solid polyelectrolyte type fuel cell |
| CN101006598A (en) * | 2004-08-18 | 2007-07-25 | 荷兰能源建设基金中心 | SOFC stack concept |
| JP2008181785A (en) * | 2007-01-25 | 2008-08-07 | Toyota Motor Corp | Fuel cell, and manufacturing method of fuel cell |
| WO2010016248A1 (en) * | 2008-08-07 | 2010-02-11 | パナソニック株式会社 | Fuel cell stack and fuel cell using same |
| CN102074718A (en) * | 2009-11-19 | 2011-05-25 | 上海空间电源研究所 | Integrated regenerative fuel cell structure |
| JP2012064384A (en) * | 2010-09-15 | 2012-03-29 | Seiko Instruments Inc | Fuel cell and fuel cell system |
| JP2012064386A (en) * | 2010-09-15 | 2012-03-29 | Seiko Instruments Inc | Fuel cell and fuel cell system |
| CN102593492A (en) * | 2012-03-02 | 2012-07-18 | 中国科学院长春应用化学研究所 | Fuel cell |
| JP2012209105A (en) * | 2011-03-29 | 2012-10-25 | Daihatsu Motor Co Ltd | Method of manufacturing fuel cell |
| CN104508881A (en) * | 2012-07-10 | 2015-04-08 | 阿海珐能量存储公司 | Fuel cell having improved electric insulation |
| JP2015069933A (en) * | 2013-09-30 | 2015-04-13 | ダイハツ工業株式会社 | Gas diffusion sheet for fuel cell, and fuel cell |
| EP2899786A1 (en) * | 2012-09-21 | 2015-07-29 | Sumitomo Precision Products Co., Ltd. | Fuel cell |
| CN105355941A (en) * | 2015-10-14 | 2016-02-24 | 航天新长征电动汽车技术有限公司 | Fuel cell stack |
| CN207690922U (en) * | 2017-09-01 | 2018-08-03 | 上海铭寰新能源科技有限公司 | A kind of cell of fuel cell |
| CN108550886A (en) * | 2018-06-07 | 2018-09-18 | 锋源新创科技（北京）有限公司 | A kind of pem fuel cell stack adhering and sealing method |
| CN208986103U (en) * | 2018-11-12 | 2019-06-14 | 南京攀峰赛奥能源科技有限公司 | A kind of fuel cell pile |
-
2018
- 2018-11-12 CN CN201811336448.5A patent/CN109346757B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001015127A (en) * | 1999-06-28 | 2001-01-19 | Fuji Electric Co Ltd | Electrolytic film/electrode bonded body and solid polyelectrolyte type fuel cell |
| CN101006598A (en) * | 2004-08-18 | 2007-07-25 | 荷兰能源建设基金中心 | SOFC stack concept |
| JP2008181785A (en) * | 2007-01-25 | 2008-08-07 | Toyota Motor Corp | Fuel cell, and manufacturing method of fuel cell |
| WO2010016248A1 (en) * | 2008-08-07 | 2010-02-11 | パナソニック株式会社 | Fuel cell stack and fuel cell using same |
| CN102074718A (en) * | 2009-11-19 | 2011-05-25 | 上海空间电源研究所 | Integrated regenerative fuel cell structure |
| JP2012064384A (en) * | 2010-09-15 | 2012-03-29 | Seiko Instruments Inc | Fuel cell and fuel cell system |
| JP2012064386A (en) * | 2010-09-15 | 2012-03-29 | Seiko Instruments Inc | Fuel cell and fuel cell system |
| JP2012209105A (en) * | 2011-03-29 | 2012-10-25 | Daihatsu Motor Co Ltd | Method of manufacturing fuel cell |
| CN102593492A (en) * | 2012-03-02 | 2012-07-18 | 中国科学院长春应用化学研究所 | Fuel cell |
| CN104508881A (en) * | 2012-07-10 | 2015-04-08 | 阿海珐能量存储公司 | Fuel cell having improved electric insulation |
| EP2899786A1 (en) * | 2012-09-21 | 2015-07-29 | Sumitomo Precision Products Co., Ltd. | Fuel cell |
| JP2015069933A (en) * | 2013-09-30 | 2015-04-13 | ダイハツ工業株式会社 | Gas diffusion sheet for fuel cell, and fuel cell |
| CN105355941A (en) * | 2015-10-14 | 2016-02-24 | 航天新长征电动汽车技术有限公司 | Fuel cell stack |
| CN207690922U (en) * | 2017-09-01 | 2018-08-03 | 上海铭寰新能源科技有限公司 | A kind of cell of fuel cell |
| CN108550886A (en) * | 2018-06-07 | 2018-09-18 | 锋源新创科技（北京）有限公司 | A kind of pem fuel cell stack adhering and sealing method |
| CN208986103U (en) * | 2018-11-12 | 2019-06-14 | 南京攀峰赛奥能源科技有限公司 | A kind of fuel cell pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109346757A (en) | 2019-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8211585B2 (en) | Seal for PEM fuel cell plate | |
| US6399234B2 (en) | Fuel cell stack assembly with edge seal | |
| KR100938948B1 (en) | Polymer electrolyte fuel cell | |
| US8371587B2 (en) | Metal bead seal for fuel cell plate | |
| US8962212B2 (en) | Unit cell module and gasket for polymer electrolyte fuel cell | |
| US20090004539A1 (en) | Fuel cell | |
| US8431284B2 (en) | Low electrical resistance bipolar plate-diffusion media assembly | |
| CN109346757B (en) | Fuel cell stack | |
| CN111883797A (en) | Integrated fuel cell single cell and fuel cell stack | |
| CN111668506A (en) | Novel metal bipolar plate of hydrogen fuel cell | |
| US10297811B2 (en) | Fuel cell stack | |
| JP3712592B2 (en) | Manufacturing method of fuel cell | |
| CN208986103U (en) | A kind of fuel cell pile | |
| CN209963153U (en) | Structure for supporting membrane electrode in metal polar plate | |
| CN109888322B (en) | Single cell for testing fuel cell | |
| CN101630743B (en) | Compliant feed region in stamped metal flowfield of a fuel cell plate to eliminate bias | |
| US11508982B2 (en) | Fuel cell stack | |
| CN100468831C (en) | Seal structure of fuel cell | |
| CN115528266A (en) | Fuel cell bipolar plate flow guide area supporting structure | |
| US20190097248A1 (en) | Fuel cell stack | |
| JP2001176519A (en) | Conductive separator, high molecular electrolyte-type fuel cell and method of manufacturing high molecular electrolyte-type fuel cell | |
| JP2018045882A (en) | Fuel battery stack | |
| EP4064397A1 (en) | Unit cell assembly for fuel cell stack and method for making the same | |
| CN216389445U (en) | Single cell and stack | |
| CN110649277A (en) | Fuel cell, half-plate and design method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |