CN211062790U

CN211062790U - High-performance flow field bipolar plate of proton exchange membrane fuel cell

Info

Publication number: CN211062790U
Application number: CN201922025412.1U
Authority: CN
Inventors: 付宇; 傅云峰
Original assignee: Shanghai Jiyi Hydrogen Energy Technology Co ltd
Current assignee: Shanghai Jiyi Hydrogen Energy Technology Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-21
Publication date: 2020-07-21
Anticipated expiration: 2029-11-21
Also published as: CN110828844A

Abstract

The high-performance flow field bipolar plate of the proton exchange membrane fuel cell is characterized in that a folded straight cathode flow field (17) and a snake-shaped anode flow field (27) flow field structure are respectively obtained by punching a cathode plate (1) and an anode plate (2), a non-distribution area flow field design is adopted, and gas is distributed on the whole inlet and outlet pipelines of the flow field through a public pipeline, namely the gas directly enters an inflow field area from a polar plate public pipeline and a fluid channel, so that the resistance drop of the public pipeline and the channel is reduced; the matching of the water cavity inlet and outlet and the cathode and anode water flow fields is designed at the sides of the cathode flow field and the anode flow field, so that the fluid resistance of the water cavity is reduced, the cooling water is uniformly distributed in the water cavity, no cooling dead angle exists, and the battery thermal management is facilitated. The metal bipolar plate sealing structure and the channel are formed by liquid silica gel injection molding, the silica gel sealing structure of the bipolar plate is compressed by adopting the pile assembling force to realize elastic sealing, the sealing effect is stable and reliable, and the metal bipolar plate with uniform fluid distribution, controllable fluid resistance, low manufacturing cost and reliable performance is obtained.

Description

High-performance flow field bipolar plate of proton exchange membrane fuel cell

Technical Field

The utility model relates to a proton exchange membrane fuel cell improves technique, especially proton exchange membrane fuel cell high performance flow field bipolar plate.

Background

A proton exchange membrane fuel cell (proton exchange membrane fuel cell) is a fuel cell, and corresponds to a "reverse" device for water electrolysis in principle. The single cell consists of an anode, a cathode and a proton exchange membrane, wherein the anode is a place where hydrogen fuel is oxidized, the cathode is a place where an oxidant is reduced, the anode and the cathode both contain catalysts for accelerating electrochemical reaction of the electrodes, the proton exchange membrane is used as a medium for transmitting H +, only H + is allowed to pass, and electrons lost by H2 pass through a lead. When the device works, the device is equivalent to a direct current power supply, wherein the anode is the negative pole of the power supply, and the cathode is the positive pole of the power supply. Since the proton exchange membrane can only conduct protons, hydrogen ions (i.e., protons) can pass directly through the proton exchange membrane to the cathode, while electrons can only reach the cathode through an external circuit. Direct current is generated when electrons flow through an external circuit to the cathode. When the anode is taken as a reference, the cathode potential is 1.23V. That is, the theoretical upper limit of the generated voltage of each unit cell is 1.23V. The output voltage depends on the output current density when the load is connected, and is usually between 0.5 and 1V. A fuel cell stack (simply referred to as a stack) having an output voltage satisfying the actual load requirement can be formed by stacking and combining a plurality of single cells. The electric pile is formed by stacking and combining a plurality of single batteries in a series connection mode. The bipolar plates and the membrane electrode three-in-one components (MEA) are overlapped alternately, sealing elements are embedded between the monomers, and the monomers are tightly pressed by the front end plate and the rear end plate and then fastened and fastened by screws, so that the proton exchange membrane fuel cell stack is formed. The stacking is carried out while ensuring that the gas main channels are aligned so that hydrogen and oxygen can smoothly reach each cell. When the electric pile works, hydrogen and oxygen are respectively introduced from the inlet, distributed to the bipolar plates of the monocells through the main gas channel of the electric pile, uniformly distributed to the electrodes through the diversion of the bipolar plates, and contacted with the catalyst through the electrode support body to carry out electrochemical reaction. The heart of the stack is the MEA assembly and the bipolar plates. The MEA is prepared by respectively placing two carbon fiber paper electrodes sprayed with Nafion solution and Pt catalyst on two sides of a pretreated proton exchange membrane to make the catalyst close to the proton exchange membrane, and pressing at a certain temperature and pressure. The gas introduced by the cathode and the anode are respectively arranged on two sides of the MEA, a certain pressure difference exists between the gas input on the two sides according to the reaction condition of the battery, the gas flow of the cathode and the anode also has the pressure difference during the reaction of the battery, and the gas permeation and the mechanical deformation of the MEA can be generated by the MEA due to the pressure difference, so the MEA has strict requirements on the gas flow on the two sides; the bipolar plate is a device for leading in and discharging cathode and anode gases and cooling media, and is also a conductor for battery series connection and electric energy output, and a cathode and anode flow field and a water flow field are processed on the bipolar plate, and comprise a common pipeline, a channel, a flow field structure and auxiliary structures such as routing inspection, positioning and the like. The design of the cathode and anode flow field plays an important role in the performance and service life of the battery. The selection of the bipolar plate processing process route has an important influence on the cost of the proton exchange membrane fuel cell stack.

A high performance PEM fuel cell is one with a high current density output, i.e., a current density of 2.5A/cm in the usual case²The above. In a state of high current density output, large flow of air is required to be input, however, the large flow of air generates fluid resistance in the battery, so that the cathode and anode gas pressure difference is difficult to match, and further, the performance of the battery is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a proton exchange membrane fuel cell high performance flow field bipolar plate through innovative design negative and positive pole flow field and water coolant flow field to and optimize the mutual seal structure in negative and positive pole chamber and coolant chamber, make novel metal bipolar plate, technical problem and manufacturing cost problem more than solving.

The purpose of the utility model is realized by the following technical measures: the metal bipolar plate comprises a cathode plate and an anode plate, and a folded straight-going cathode flow field and a snake-shaped anode flow field structure are obtained by stamping the cathode plate and the anode plate respectively, the two flow fields are respectively positioned at the central positions of the surfaces of the cathode plate and the anode plate, the cathode plate and the anode plate are respectively provided with an upper surface and a lower surface, and the two surfaces are respectively a gas cavity side and a coolant cavity side; the common pipelines of the metal bipolar plate are obtained by punching the frame part of the metal bipolar plate, and comprise a cathode gas common pipeline and an anode gas common pipeline of air and hydrogen of the metal bipolar plate, and a cathode water common pipeline, a cathode common pipeline, an anode common pipeline and an anode water common pipeline.

Particularly, the folded straight-going cathode flow field comprises a cathode flow field straight-going section positioned at the inlet end and the outlet end of the flow field, a folded section positioned between the inlet end and the outlet end, and cathode flow field edge sections positioned at two side edges of the inlet end and the outlet end of the flow field; wherein, two ends of the folded section are respectively communicated with a group of cathode flow field straight sections, two sides of the folded section are respectively communicated with a group of cathode flow field edge sections, the inner side of the cathode flow field edge section is a folded edge, and the outer side of the cathode flow field edge section is a straight edge; the serpentine anode flow field comprises an anode flow field inlet end edge channel, an anode flow field outlet end edge channel and a serpentine coil channel communicated with the anode flow field inlet end edge channel and the anode flow field outlet end edge channel.

Particularly, a glue penetrating hole is processed outside the sealing structure of the cathode plate and the anode plate, and the double-sided silica gel of the metal bipolar plate is communicated into a whole after the silica gel injection is finished.

In particular, the metal bipolar plate cathode cavity, the metal bipolar plate anode cavity and the metal bipolar plate coolant cavity are integrally and respectively sealed in a sealing ring formed by injecting silica gel.

In particular, a cathode gas common pipeline, an anode gas common pipeline, a cathode water common pipeline of a cathode plate of the metal bipolar plate and silica gel injected on the periphery of a flow field are used for obtaining a cathode air cavity side air cavity sealing silica gel strip and a cathode water cavity side water cavity sealing rubber strip, a sealing ring is processed between the sealing of the common pipeline and a cathode cavity and a water cavity except for a circle of sealing rubber strip for the common pipeline, namely a double-layer sealing rubber strip of a hydrogen cavity at the side of a cathode air cavity or a double-layer sealing rubber strip of a water cavity at the side of the cathode air cavity, a cathode side gas channel rubber strip and a water cavity side gas channel rubber strip which are separated from each other are cut on the air cavity and the water cavity side second layer sealing ring, and cathode gas channel holes are processed on the polar plate between the channel strips, and gas is led in or out from the water cavity side channels of the metal bipolar plate to the cathode gas channel holes in a common pipeline and then enters and flows out of the flow field.

Particularly, a cathode common pipeline, an anode common pipeline, a water common pipeline and silica gel are injected at the periphery of a flow field of an anode plate of the metal bipolar plate to obtain an anode air cavity side air cavity sealing silica gel strip and an anode water cavity side water cavity sealing rubber strip; a sealing ring is processed between the sealing of the public pipeline and the anode cavity and between the sealing ring and the water cavity except for a circle of sealing rubber strip of the public pipeline, namely an anode water cavity side gas cavity channel rubber strip or an anode gas cavity side water cavity double-layer sealing rubber strip.

Particularly, the back sides of the air cavity sides of a cathode plate and an anode plate of the metal bipolar plate are overlapped, and silica gel is injected at the periphery of a public pipeline and a flow field for sealing to obtain a water cavity of the bipolar plate; cutting a sealing ring entering a water flow field at the side of the water cavity to form spaced water cavity channel rubber strips, wherein the channel rubber strips on the sealing ring extend to the edge channels of the flow field of the cathode plate and the anode plate; the integrated injection molding, the water cavity side channel adhesive tape design is that one end is the blind end one end and is the passageway, have the negative pole entrance point channel strip of water on the negative plate, the passageway export is the blind end, has the positive pole water cavity side hydrogen chamber channel adhesive tape that water got into the snake type anode flow field on the positive plate, and the passageway import is the blind end, perhaps, has the negative pole entrance point channel strip of water on the positive plate, and the passageway export is the blind end, has the positive pole water cavity side hydrogen chamber channel adhesive tape that water got into the snake type anode flow field on the negative plate, and the passageway import is the blind end.

Particularly, the cooling water inlet and outlet sections are distributed and collected in the edge section of the cathode flow field, the edge channel of the anode flow field inlet end and the edge channel of the anode flow field outlet end; the cathode flow field straight section is lapped on the edge channel of the inlet end of the anode flow field and the edge channel of the outlet end of the anode flow field.

The utility model discloses an advantage and effect: the design of a flow field without a distribution area is adopted, a gas public pipeline is distributed on the whole inlet and outlet pipeline of the flow field, gas directly enters the flow field area from a polar plate public pipeline and is conveyed according to the pipeline designed by the flow field, the public pipeline is widened, the resistance drop of the public pipeline and a channel is reduced, and the resistance drop caused by gas conveying is completely used in a battery power generation area due to the fact that the distribution area is absent, and the efficiency of the air compressor is improved. The metal polar plate only punches the flow field and the hole, so that the structure of a punching die is simplified, and the polar plate punching quality is high; meanwhile, the elastic sealing is realized by compressing the silica gel sealing structure of the bipolar plate by adopting the galvanic pile assembling force, the sealing effect is stable and reliable, the utilization rate of raw materials for manufacturing the sealing rubber strip is high, the manufacturing process of the silica gel sealing element is simple, the quality is easy to guarantee, the manufacturing process is improved, and the low-cost batch production is convenient to realize.

Drawings

Fig. 1 is a schematic diagram of a structure of a cathode stamping plate in embodiment 1 of the present invention.

Fig. 2 is a schematic diagram of an anode stamping plate structure in embodiment 1 of the present invention.

Fig. 3A and 3B are schematic structural views of two side surfaces of the cathode plate in embodiment 1 of the present invention.

Fig. 4 is a schematic cross-sectional view of the cathode plate a-a in fig. 3B.

Fig. 5A and 5B are schematic diagrams of two side face structures of the anode plate in embodiment 1 of the present invention.

Fig. 6 is a schematic structural view of a bipolar plate water chamber in embodiment 1 of the present invention.

Fig. 7 is a schematic cross-sectional view of the bipolar plate water flow channel B-B of fig. 6.

The reference numerals include:

in fig. 1:

1-a cathode plate, 11-a cathode gas common pipeline, 12-an anode gas common pipeline, 13-a cathode water common pipeline, 14-a positioning hole, 15-a glue permeating hole, 16-a cathode gas channel hole, 17-a folded straight cathode flow field, 18-a cathode flow field straight section and 19-a cathode flow field edge section;

in fig. 2:

2-anode plate, 21-cathode common pipe, 22-anode common pipe, 23-anode water common pipe, 24-anode gas channel hole, 25-anode flow field inlet end edge channel, 26-anode flow field outlet end edge channel and 27-snake-shaped anode flow field;

in fig. 3:

100A-cathode air cavity side air cavity sealing silica gel strip, 102A-cathode air cavity side water cavity double-layer sealing rubber strip, 103A-cathode air cavity side hydrogen cavity double-layer sealing rubber strip, 1001A-cathode water cavity side air cavity channel rubber strip, 100B-cathode water cavity side water cavity sealing rubber strip, 1001B-cathode water cavity side air cavity channel rubber strip, 1002B-cathode water cavity side water cavity channel rubber strip and 1003B-cathode inlet end water channel strip;

in fig. 5:

200A-anode air cavity side air cavity sealing silica gel strip, 202A-anode air cavity side water cavity double-layer sealing rubber strip, 203A-anode air cavity side hydrogen cavity double-layer sealing rubber strip, 2001A-anode water cavity side air cavity channel rubber strip, 200B-anode water cavity side water cavity sealing rubber strip and 2001B-anode water cavity side air cavity channel rubber strip; 2002B-water cavity side water cavity channel rubber strip of the anode, and 2003B-hydrogen cavity side water cavity channel rubber strip of the anode.

Detailed Description

The principle of the utility model lies in that two methods are provided for reducing the fluid resistance in the flow field, one is to increase the pressure at the inlet end of the flow field, and the other is to design a reasonable flow field structure; the utility model discloses research finds that, flow field structural design will satisfy the requirements of fuel cell reaction environment and material transportation on the one hand, and will satisfy the requirement of fuel cell electric energy output on the other hand; meanwhile, the requirements of fuel cell reaction and electric energy output are met, and the matching relationship between the cathode flow field and the anode flow field and the cooling flow field needs to be adjusted.

The utility model discloses in, metal bipolar plate's book type craspedodrome negative pole flow field 17 adopts the book type craspedodrome flow field, and gaseous direct leading-in book type craspedodrome negative pole flow field 17 and direct derivation metal bipolar plate from public pipeline, and gas distribution is even, and the velocity of flow is controllable, and fluid resistance is little. Meanwhile, the snake-shaped anode flow field 27 of the metal bipolar plate adopts a snake-shaped flow field, gas is directly led into the snake-shaped anode flow field 27 from a common pipeline and is directly led out of the bipolar plate, the gas distribution is uniform, the flow rate is controllable, and the fluid resistance can be accurately controlled.

In the utility model, according to the water cavity water flow field structure of the metal bipolar plate, water enters the zigzag straight-going cathode flow field 17 and the zigzag anode flow field 27 from the cathode water common pipeline 13 and the anode water common pipeline 23, one way is that the water can be circulated by the intersection of the cathode flow field edge section 19 at the water cavity side of the cathode plate 1 and the zigzag anode flow field 27 of the anode plate 2, the other way is that the anode flow field edge channel 25 is processed at the outer side of the zigzag anode flow field 27 of the anode plate 2, water enters the channel, flows into the cathode flow field straight-going section 18 overlapped by the zigzag straight-going cathode flow field 17 of the cathode plate 1 and the anode flow field edge channel 25 from the inlet end, enters the water cavity cathode plate flow field, converges to the cathode flow field straight-going section 18 overlapped by the zigzag straight-going cathode flow field 17 and the anode flow field edge channel 26 at the outlet end of the cathode plate 1, and reaches the anode outlet end edge channel 26 at the edge of the zigzag anode, flows out to the cathode water common pipe 13 and the anode water common pipe 23. The water flow modes in the two ways reduce the fluid resistance of the water cavity, and the cooling water is uniformly distributed in the water cavity without cooling dead angles, thereby being beneficial to the thermal management of the battery.

The present invention will be further explained with reference to the drawings and examples.

Example (b): as shown in fig. 1 to 7, the polar plate, that is, the metal bipolar plate, includes a cathode plate 1 and an anode plate 2, the polar plate is rectangular with irregular edges, the length is 350-; fig. 1 and 2 show the gas chamber sides of a cathode plate 1 and an anode plate 2; on the polar plate frame outside the flow field of the cathode plate 1 and the anode plate 2, the surfaces of the polar plate gas cavity side and the coolant cavity side respectively protrude the upper surface and the lower surface of the polar plate frame, the protruding height is designed according to the compression characteristic of the membrane electrode of the proton exchange membrane fuel cell and the compression characteristic requirement of silica gel for sealing, and the common pipeline of the metal bipolar plate is obtained by punching the polar plate frame part, and comprises a cathode gas common pipeline 11 and an anode gas common pipeline 12 of air and hydrogen of the metal bipolar plate, a cathode water common pipeline 13 and an anode water common pipeline 23.

In the foregoing, the metal bipolar plate sealing structure and the channel are injection-molded by liquid silica gel, and are respectively completed by one-time injection on the two sides of the cathode plate 1 and the anode plate 2; in order to fix the structure formed by injecting the silica gel and the position of the polar plate, further, a permeable hole 15 is processed outside the sealing structure of the cathode plate 1 and the anode plate 2, and the two sides of the metal bipolar plate are communicated with each other into a whole after the silica gel injection is finished; and the cathode plate 1 and the anode plate 2 after the sealing structure and the channel are formed are laminated or bonded to obtain the metal bipolar plate.

In the foregoing, the cathode cavity of the metal bipolar plate cathode plate is entirely enclosed in a sealing ring formed by injecting silica gel. The method comprises the following steps of obtaining a cathode air cavity side air cavity sealing silica gel strip 100A and a cathode water cavity side water cavity sealing silica gel strip 100B by a cathode gas common pipeline 11, an anode gas common pipeline 12 and silica gel injected at the periphery, processing a sealing ring between a common pipeline sealing ring and a cathode cavity and a water cavity, namely a cathode air cavity side hydrogen cavity double-layer sealing silica gel strip 103A or a cathode air cavity side water cavity double-layer sealing silica gel strip 102A, cutting the entering and leading-out air cavity and water cavity side sealing ring to form a cathode water cavity side air cavity channel rubber strip A and a cathode water cavity side air cavity channel rubber strip 1001B which are spaced, processing cathode gas channel holes 16 on a polar plate between the channel strips, and leading gas from the common pipeline to the water cavity side of the polar plate or leading the gas out to the gas channel holes.

In the foregoing, the common cathode pipe 21, the common anode pipe 22 and the periphery of the anode plate of the metal bipolar plate are injected with silica gel to obtain a silica gel sealing ring, and the cathode cavity is sealed in the common pipe to be entirely enclosed in the silica gel sealing ring. A sealing ring, namely an anode air cavity side air cavity sealing silica gel strip 200A or an anode air cavity side water cavity double-layer sealing rubber strip 202A is processed between the sealing ring and the cathode cavity and the water cavity, an anode air cavity side hydrogen cavity channel rubber strip 2003A and an anode water cavity side hydrogen cavity channel rubber strip 2003B which are spaced are cut on the sealing ring entering and leading-out air cavity and water cavity side, anode air channel holes 24 are processed on the polar plates between the channel rubber strips, and air is led in or out to the anode air channel holes 24 from the public pipeline to the water cavity side of the polar plates and then enters the snake-shaped anode flow field 27.

In the above, the back surfaces of the cathode plate 1 and the anode plate 2 of the metal bipolar plate are overlapped with each other, and liquid-state molding silica gel is injected around the common pipe and the water flow field to obtain the water cavity of the bipolar plate. Silica gel sealing rings are injected at the periphery of the water cavity side water common pipeline, and a water channel strip 1003B at the cathode inlet end and a hydrogen cavity channel strip 2003B at the anode water cavity side are cut on the sealing ring entering the water flow field to form a gap, wherein the channel strips on the sealing rings extend to 19, 25 and 26 on the edge channels of the cathode and anode plate flow fields. For the purpose of integral injection molding, the water cavity side channel adhesive tape is designed to have one end as a blind end and the other end as a channel, if the cathode plate is provided with an inlet end channel strip of water, the channel outlet is a blind end, the anode plate is provided with an anode water cavity side hydrogen cavity channel adhesive tape 2003B for water to enter the snake-shaped anode flow field, and the channel inlet is a blind end, or the anode plate is provided with an inlet end channel strip of water, the channel outlet is a blind end, the cathode plate is provided with an outlet end channel strip for water to enter the snake-shaped anode flow field, and the channel inlet is a blind end.

The embodiment of the utility model provides an in, metal bipolar plate's additional structure is still including patrolling and examining and fixing a position, the utility model discloses in the embodiment patrol and examine and adopt row needle row female winding displacement mode, figure 6 connects the spacing injection silica gel 3 that inserts the position for row needle row female winding displacement, the embodiment of the utility model provides an in metal bipolar plate's location adopt the design of locating hole 14.

Claims

1. A high-performance flow field bipolar plate of a proton exchange membrane fuel cell comprises a cathode plate (1) and an anode plate (2), and is characterized in that a folded straight cathode flow field (17) and a snake-shaped anode flow field (27) flow field structure are respectively obtained by punching the cathode plate (1) and the anode plate (2), the two flow fields are respectively arranged at the central positions of the surfaces of the cathode plate and the anode plate (1) and the anode plate (2) are respectively provided with an upper surface and a lower surface, and the two surfaces are respectively a gas cavity side and a coolant cavity side; the common pipelines of the metal bipolar plate are obtained by punching the frame part of the metal bipolar plate and comprise a cathode gas common pipeline (11) and an anode gas common pipeline (12) of air and hydrogen of the metal bipolar plate, a cathode water common pipeline (13), a cathode common pipeline (21), an anode common pipeline (22) and an anode water common pipeline (23).

2. The pem fuel cell high performance flow field bipolar plate of claim 1, wherein said folded rectilinear cathode flow field (17) comprises a cathode flow field rectilinear segment (18) at the inlet and outlet ends of the flow field and a folded segment between the inlet and outlet ends, and cathode flow field edge segments (19) at both sides of the inlet and outlet ends of the flow field; wherein, two ends of the folded section are respectively communicated with a group of cathode flow field straight sections (18), two sides of the folded section are respectively communicated with a group of cathode flow field edge sections (19), the inner side of the cathode flow field edge section (19) is a folded edge, and the outer side is a straight edge; the serpentine anode flow field (27) comprises an anode flow field inlet end edge channel (25), an anode flow field outlet end edge channel (26) and a serpentine coil channel communicated with the anode flow field inlet end edge channel and the anode flow field outlet end edge channel.

3. The high-performance flow field bipolar plate of the proton exchange membrane fuel cell as claimed in claim 1, wherein a gel permeation hole (15) is processed outside the sealing structure of the cathode plate (1) and the anode plate (2), and the silica gel on the two sides of the metal bipolar plate is communicated with each other to form a whole after the silica gel injection is completed.

4. A pem fuel cell high performance flow field bipolar plate as claimed in claim 1 wherein the metallic bipolar plate cathode chamber, anode chamber and coolant chamber are individually enclosed in a sealing ring formed by silicone injection.

5. The high-performance flow field bipolar plate of the proton exchange membrane fuel cell according to claim 1, wherein a cathode gas common pipeline (11), an anode gas common pipeline (12), a cathode water common pipeline (13) of the cathode plate (1) of the metal bipolar plate and silica gel injected on the periphery of the flow field obtain a cathode air cavity side air cavity sealing silica gel strip (100A) and a cathode water cavity side water cavity sealing rubber strip (100B), and a sealing ring is processed between the common pipeline and the cathode cavity and between the common pipeline and the water cavity except for one circle of the sealing rubber strip, namely the cathode air cavity side hydrogen cavity double-layer sealing rubber strip (103A) or the cathode air cavity side water cavity double-layer sealing rubber strip (102A).

6. The high-performance flow field bipolar plate of the proton exchange membrane fuel cell according to claim 1, wherein a cathode common pipe (21), an anode common pipe (22), a water common pipe (23) of the anode plate (2) of the metal bipolar plate and silica gel injected at the periphery of the flow field are used for obtaining an anode air cavity side air cavity sealing silica gel strip (200A) and an anode water cavity side water cavity sealing rubber strip (200B); a sealing ring is processed between the sealing of the public pipeline and the anode cavity and the water cavity except for one circle of sealing rubber strip of the public pipeline, namely an anode water cavity side air cavity channel rubber strip (2001A) or an anode air cavity side water cavity double-layer sealing rubber strip (2002A), when anode gas enters and is led out of the air cavity, the air cavity and the water cavity side sealing ring are cut to form an anode air cavity side hydrogen air cavity channel rubber strip (2003A) and an anode water cavity side hydrogen air cavity channel rubber strip (2003B) which are separated, and anode gas channel holes (24) are processed on a polar plate between the channel rubber strips.

7. The high-performance flow field bipolar plate of the proton exchange membrane fuel cell as claimed in claim 1, wherein the back surfaces of the air cavity sides of the cathode plate (1) and the anode plate (2) of the metal bipolar plate are overlapped, and silica gel is injected at the periphery of the common pipeline and the flow field for sealing to obtain the water cavity of the bipolar plate; cutting a sealing ring entering a water flow field at the side of the water cavity to form spaced water cavity channel rubber strips, wherein the channel rubber strips on the sealing ring extend to the edge channels of the flow field of the cathode plate and the anode plate; injection moulding as an organic whole, water cavity side passageway adhesive tape design is that one end is the passageway for blind end one end, there is negative pole entrance point passageway strip (1003B) of water on negative plate (1), the channel export is the blind end, there is water to get into positive pole water cavity side hydrogen cavity passageway adhesive tape (2003B) in snake type anode flow field on positive plate (2), the passageway import is the blind end, or, there is negative pole entrance point passageway strip (1003B) of water on positive plate (2), the channel export is the blind end, there is water to get into positive pole water cavity side hydrogen cavity passageway adhesive tape (2003B) in snake type anode flow field on negative plate (1), the passageway import is the blind end.

8. The high performance flow field bipolar plate of proton exchange membrane fuel cell as claimed in claim 1, wherein the cooling water inlet and outlet section distribution and collection pipes are punched at the cathode flow field edge section (19) and the anode flow field inlet end edge channel (25), and the anode flow field outlet end edge channel (26); the straight section (18) of the cathode flow field is lapped on the edge channel (25) of the inlet end of the anode flow field and the edge channel (26) of the outlet end of the anode flow field.