CN218160489U - Electrode plate structure for hydrogen fuel cell - Google Patents
Electrode plate structure for hydrogen fuel cell Download PDFInfo
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- CN218160489U CN218160489U CN202221669687.4U CN202221669687U CN218160489U CN 218160489 U CN218160489 U CN 218160489U CN 202221669687 U CN202221669687 U CN 202221669687U CN 218160489 U CN218160489 U CN 218160489U
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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 utility model relates to a plate electrode structure for hydrogen fuel cell, include: a collector plate; the electric pile structures are provided with a plurality of groups; the collector plates are provided with two groups, and the multiple groups of pile structures are arranged between the two groups of collector plates in parallel. The stack structure includes: one side of the air plate is bonded with the current collecting plate through a double-sided adhesive tape; the middle part of the membrane electrode plate is provided with a diffusion layer; the diagonal positions of the membrane electrode plate are respectively provided with a long and narrow hole; the hydrogen plate, the membrane electrode plate and the hydrogen plate are bonded by double-sided adhesive. And one side of the hydrogen plate is provided with a second hydrogen flow channel, and the second hydrogen flow channel corresponds to the second hydrogen flow channel of the hydrogen plate by arranging a slot hole at the diagonal position of the membrane electrode plate, so that the hydrogen can only circulate between the hydrogen plate and the membrane electrode plate, the hydrogen cannot circulate to the air plate, and the diffusion layer of the hydrogen on the membrane electrode plate is kept to react with the air.
Description
Technical Field
The utility model belongs to the technical field of hydrogen fuel cell, specific electrode plate structure for hydrogen fuel cell that says so.
Background
A fuel cell is a chemical device that is capable of converting chemical energy present in a fuel into electrical energy.
The hydrogen fuel cell is a classification of fuel cells, the fuel in the hydrogen fuel cell is mainly hydrogen, and the conversion of chemical energy contained in hydrogen into electric energy is the conventional operation of the current hydrogen fuel cell, and for the hydrogen fuel cell, the combination mode of the electrode plates is an important factor influencing the electric energy conversion efficiency.
The electrode plate combination mode of the existing hydrogen fuel cell is relatively simple in structure, hydrogen circulation and water circulation between the electrode plates are not optimized and improved, so that hydrogen in the electrode plates easily flows to the air plate, and the electric energy conversion efficiency of the hydrogen fuel cell is influenced.
Accordingly, an electrode plate structure for a hydrogen fuel cell has been proposed to address the above problems.
SUMMERY OF THE UTILITY MODEL
To remedy the deficiencies of the prior art and to solve at least one of the above problems, an electrode plate structure for a hydrogen fuel cell is proposed.
The utility model provides a technical scheme that its technical problem adopted is: an electrode plate structure for a hydrogen fuel cell, comprising:
the flow collecting plates are provided with two groups;
the electric pile structure, the electric pile structure sets up the multiunit, and multiunit electric pile structure arranges side by side between two sets of current collecting plates, and the electric pile structure includes:
one side of the air plate is bonded with the collector plate through a double-sided adhesive tape;
the middle part of the membrane electrode plate is provided with a diffusion layer; the diagonal positions of the membrane electrode plate are respectively provided with a long and narrow hole; one side of the air plate is bonded with the membrane electrode plate through double-sided adhesive tape, and the air plate and the membrane electrode plate are sealed through a sealing ring;
the membrane electrode plate and the hydrogen plate are bonded by double-sided adhesive; and a second hydrogen flow channel is arranged on one side of the hydrogen plate.
Preferably, one side of the air plate is provided with an air flow channel and a hydrogen flow channel I; the air flow channel is positioned in the middle of the air plate; the first hydrogen flow channels are arranged in two groups, and the two groups of the first hydrogen flow channels are arranged on the air plate in a centrosymmetric manner; an air plate water tank is arranged on the other side of the air plate.
Preferably, the surface of one side of the air plate is provided with a first sealing groove, and the sealing ring is glued in the first sealing groove; the upper end and the lower end of the surface of the air plate are provided with a first through hole which is centrosymmetric; the left end and the right end of the air plate are provided with a second through hole which is centrosymmetric; the surface of the air plate is provided with a first through hole.
Preferably, a second sealing groove is formed in the surface of one side of the hydrogen plate; a hydrogen plate water tank is arranged on the surface of one side of the hydrogen plate; the hydrogen plate water tank and the sealing groove II are positioned on the same side face of the hydrogen plate; the upper end and the lower end of the surface of the hydrogen plate are provided with a centrosymmetric third through hole, and the left end and the right end of the hydrogen plate are provided with a centrosymmetric fourth through hole.
Preferably, a through hole II is formed in the surface of the membrane electrode plate corresponding to the through hole I; a third through hole is formed in the hydrogen plate corresponding to the first through hole and the second through hole; a flow groove is arranged on the surface of one side of the collector plate close to the air plate; the collector plate is provided with connecting lugs with a trapezoidal structure.
Preferably, the first through hole and the third through hole have the same shape and are both in a trapezoidal structure, and the first through hole corresponds to the third through hole; the second through hole and the fourth through hole are the same in shape and are of rectangular structures, and the second through hole corresponds to the fourth through hole.
The utility model has the advantages that:
the utility model provides an electrode plate structure for hydrogen fuel cell sets up the slot hole through the diagonal angle position at the membrane electrode plate, and is corresponding with two positions of hydrogen gas flow path of hydrogen gas board, can realize that hydrogen only circulates between hydrogen gas board and membrane electrode plate, can not let hydrogen circulate to the air plate, keeps the diffusion layer of hydrogen on the membrane electrode plate to produce with the air and reacts.
The utility model provides an electrode plate structure for hydrogen fuel cell cooperates the arch of diffusion layer on the membrane electrode board through the surface setting at the air board, can make membrane electrode board and air board when combining closely laminate, and the cooperation sealing washer can avoid the diffusion layer on the membrane electrode board not with hydrogen board, the impedance that the air board closely laminates and lead to too high, and then leads to the problem that hydrogen board, air board and membrane electrode board are burnt through, has improved the sealed effect of plate electrode.
The utility model provides an electrode plate structure for hydrogen fuel cell through set up the engaging lug on the current collector, and with the whole gilding of current collector, makes its impedance reduce, and the engaging lug area is big, can avoid the heat to concentrate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a perspective view of the present invention.
Fig. 2 is a front perspective view of the air plate of the present invention.
Fig. 3 is a front perspective view of the hydrogen plate of the present invention.
Fig. 4 is a front perspective view of the membrane electrode plate of the present invention.
Fig. 5 is a perspective view of the air plate according to the present invention.
Fig. 6 is a back side perspective view of the hydrogen plate of the present invention.
Illustration of the drawings:
11. an air plate; 111. an air flow passage; 112. a first sealing groove; 113. a second through hole; 114. a first through hole; 115. a first through hole; 116. a first hydrogen flow channel; 117. an air plate water tank; 12. a membrane electrode plate; 123. a second through hole; 124. a diffusion layer; 125. a slot; 13. a hydrogen gas panel; 131. a second sealing groove; 132. a third through hole; 133. a third through hole; 134. a fourth through hole; 135. a hydrogen plate water tank; 136. a second hydrogen flow channel; 2. a collector plate; 21. a launder; 22. and (5) connecting the lugs.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
Specific examples are given below.
The utility model discloses:
referring to fig. 1 to 6, the present invention provides an electrode plate structure for a hydrogen fuel cell, including:
the collector plates 2 are provided with two groups;
the pile structure, the pile structure sets up the multiunit, and multiunit pile structure arranges side by side between two sets of current collecting plates 2, and the pile structure includes:
one side of the air plate 11 is bonded with the current collecting plate 2 through a double-sided adhesive tape;
the middle part of the membrane electrode plate 12 is provided with a diffusion layer 124; the diagonal positions of the membrane electrode plate 12 are respectively provided with a slot 125; one side of the air plate 11 is bonded with the membrane electrode plate 12 through double-sided adhesive tape, and the air plate 11 and the membrane electrode plate 12 are sealed by a sealing ring;
the hydrogen plate 13, the membrane electrode plate 12 and the hydrogen plate 13 are bonded through double-sided adhesive; and a second hydrogen flow channel 136 is formed at one side of the hydrogen plate 13.
Specifically, in the prior art, the electrode plate combination mode of the hydrogen fuel cell is relatively simple in structure, and hydrogen gas circulation and water circulation between the electrode plates are not optimized and improved, so that hydrogen gas in the electrode plates easily flows to the air plate 11, and the electric energy conversion efficiency of the hydrogen fuel cell is further influenced; the device takes a hydrogen plate 13, an air plate 11 and a membrane electrode plate 12 as a galvanic pile structure, which are referred to as a cell for short, and simultaneously cooperates with a sealing ring to form a minimum unit, meanwhile, the electrode plate combination mode sequentially bonds through double-sided adhesive according to the sequence of a current collecting plate 2, the air plate 11, the membrane electrode plate 12 and the hydrogen plate 13, the air plate 11 and the membrane electrode plate 12 are sealed through the sealing ring, the air plate 11 and the membrane electrode plate 12 are sealed by the sealing ring, and the centrally symmetrical slot holes 125 which are arranged on the membrane electrode plate 12 are matched and correspond to a hydrogen flow channel II 136 on the hydrogen plate 13, so that hydrogen can only circulate between the hydrogen plate 13 and the membrane electrode plate 12, and the hydrogen can not flow to the air plate 11, and the hydrogen can be kept on a diffusion layer 124 on the membrane electrode plate 12 to react with air; in a group of fuel cells, the current collecting plates 2 are arranged in two groups, the two groups of current collecting plates 2 are positioned between the two groups of outer end plates, the end plates are connected with the current collecting plates 2 and the pile structures through connecting shafts fixedly connected between the two groups of end plates in a penetrating manner, and a plurality of groups of pile structures are arranged between the two groups of current collecting plates 2.
Further, an air flow channel 111 and a first hydrogen flow channel 116 are formed on one side of the air plate 11; the air flow passage 111 is located in the middle of the air plate 11; two groups of first hydrogen flow channels 116 are arranged, and the two groups of first hydrogen flow channels 116 are arranged on the air plate 11 in a central symmetry manner; an air plate water tank 117 is provided on the other side of the air plate 11.
Specifically, the air flow channel 111 and the first hydrogen flow channel 116 are both arranged on one side of the air plate 11, which is attached to the membrane electrode plate 12, and the air plate water tank 117 is arranged on the other side of the air plate 11; the front air flow channel 111 and the hydrogen flow channel one 116 are sealed with the smooth surface frame area of the membrane electrode plate 12 by using sealing strips, so as to realize the effect of three-field separation, wherein an air plate water tank 117 arranged on the back of the air plate 11 and a hydrogen plate water tank 135 form a network structure.
Furthermore, a first sealing groove 112 is formed in the surface of one side of the air plate 11, and the sealing ring is glued in the first sealing groove 112; the upper end and the lower end of the surface of the air plate 11 are provided with a first through hole 114 which is centrosymmetric; the left end and the right end of the air plate 11 are provided with a second through hole 113 which is centrosymmetric; the surface of the air plate 11 is provided with a first through hole 115.
Specifically, the first sealing groove 112 is formed in one side of the air plate 11, which is attached to the membrane electrode plate 12; the first sealing groove 112 is formed in the air plate 11, so that a sealing ring arranged between the air plate 11 and the membrane electrode plate 12 can be arranged in the first sealing groove, the first through hole 114, the second through hole 113, the third through hole 133 and the fourth through hole 134 are formed in the surfaces of the hydrogen plate 13 and the air plate 11, the first through hole 114 and the third through hole 133 are used as cooling water and hydrogen holes and are arranged at the upper and lower positions of the air plate 11 and the hydrogen plate 13, the second through hole 113 and the fourth through hole 134 are used as air holes and are arranged at the left and right positions of the air plate 11 and the hydrogen plate 13, two groups of the first through hole 114 and the third through hole 133 are arranged, and the two groups of the first through hole 114 and the third through hole 133 are arranged in an oblique and diagonal symmetrical manner.
Further, a second sealing groove 131 is formed in the surface of one side of the hydrogen plate 13; a hydrogen plate water tank 135 is arranged on one side surface of the hydrogen plate 13; the hydrogen plate water tank 135 and the second sealing groove 131 are positioned on the same side surface of the hydrogen plate 13; the upper end and the lower end of the surface of the hydrogen plate 13 are provided with a third through hole 133 with central symmetry, and the left end and the right end of the hydrogen plate 13 are provided with a fourth through hole 134 with central symmetry.
Specifically, the second sealing groove 131 is formed in one side, where the hydrogen plate 13 is attached to the air plate 11, of the second sealing groove, and a hydrogen plate water tank 135 is formed in one side, where the hydrogen plate 13 is attached to the air plate 11; the membrane electrode plate 12 has no flow channel design, the Diffusion Layer 124 is arranged in the middle of the membrane electrode plate 12, the Diffusion Layer 124 is specifically Gas Diffusion Layer GDL for short, and the Gas flowing through the hydrogen plate 13 and the air plate 11 is exchanged through the proton membrane on the membrane electrode plate 12 to generate electrochemical reaction.
Furthermore, a second through hole 123 is formed on the surface of the membrane electrode plate 12 corresponding to the first through hole 115; a third through hole 132 is formed in the hydrogen plate 13 corresponding to the first through hole 115 and the second through hole 123; a flow groove 21 is arranged on the surface of one side of the collector plate 2 close to the air plate 11; the collector plate 2 is provided with connecting lugs 22 of a trapezoidal structure.
Specifically, a seal ring is arranged between the hydrogen plate 13 and the cooling water, the cooling water flows in and out from top to bottom to fully cool the whole surface of the hydrogen plate 13, and the flow grooves 21 of the collector plate 2 are matched with the flow direction of the cooling water, so that the cooling water can fully flow and can be fully cooled.
Further, the first through hole 114 and the third through hole 133 have the same shape and are both trapezoidal structures, and the first through hole 114 and the third through hole 133 correspond to each other; the second through hole 113 and the fourth through hole 134 have the same shape and are both rectangular structures, and the second through hole 113 and the fourth through hole 134 correspond to each other.
The working principle is as follows: in the prior art, the electrode plate combination mode of the hydrogen fuel cell is relatively simple in structure, and hydrogen circulation and water circulation between the electrode plates are not optimized and improved, so that hydrogen in the electrode plates easily flows to the air plate 11, and the electric energy conversion efficiency of the hydrogen fuel cell is further influenced; the device takes a hydrogen plate 13, an air plate 11 and a membrane electrode plate 12 as a galvanic pile structure, which are referred to as a cell for short, and simultaneously cooperates with a sealing ring to form a minimum unit, meanwhile, the electrode plate combination mode sequentially bonds through double-sided adhesive according to the sequence of a current collecting plate 2, the air plate 11, the membrane electrode plate 12 and the hydrogen plate 13, the air plate 11 and the membrane electrode plate 12 are sealed through the sealing ring, the air plate 11 and the membrane electrode plate 12 are sealed by the sealing ring, and the centrally symmetrical slot holes 125 which are arranged on the membrane electrode plate 12 are matched and correspond to a hydrogen flow channel II 136 on the hydrogen plate 13, so that hydrogen can only circulate between the hydrogen plate 13 and the membrane electrode plate 12, and the hydrogen can not flow to the air plate 11, and the hydrogen can be kept on a diffusion layer 124 on the membrane electrode plate 12 to react with air.
Two groups of current collecting plates 2 in one group of fuel cells are arranged, the two groups of current collecting plates 2 are positioned between the two groups of outer end plates, the end plates are in through connection with the current collecting plates 2 and the pile structures through connecting shafts fixedly connected between the two groups of end plates, and a plurality of groups of pile structures are arranged between the two groups of current collecting plates 2; the membrane electrode plate 12 has no flow channel design, and the gas circulated by the hydrogen plate 13 and the air plate 11 is exchanged by the proton membrane on the membrane electrode plate 12 to generate electrochemical reaction.
The first sealing groove 112 is formed in the air plate 11, so that a sealing ring arranged between the air plate 11 and the membrane electrode plate 12 is arranged in the first sealing groove, the first through hole 114, the second through hole 113, the third through hole 133 and the fourth through hole 134 are formed in the surfaces of the hydrogen plate 13 and the air plate 11, the first through hole 114 and the third through hole 133 are used as cooling water and hydrogen holes and are arranged at the upper and lower positions of the air plate 11 and the hydrogen plate 13, the second through hole 113 and the fourth through hole 134 are used as air holes and are arranged at the left and right positions of the air plate 11 and the hydrogen plate 13, two sets of the first through hole 114 and the third through hole 133 are arranged, and two sets of the diagonal angles are symmetrically arranged.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (6)
1. An electrode plate structure for a hydrogen fuel cell, characterized by comprising:
the collector plates (2) are provided with two groups; and
the galvanic pile structure, the galvanic pile structure sets up the multiunit, just multiunit galvanic pile structure arranges side by side between two sets of current collecting plates (2), each the galvanic pile structure includes:
the air plate (11), one side of the said air plate (11) and the said current collector plate (2) are bound through the double faced adhesive tape;
the membrane electrode plate (12), wherein a diffusion layer (124) is arranged in the middle of the membrane electrode plate (12); the diagonal positions of the membrane electrode plate (12) are respectively provided with a long and narrow hole (125); one side of the air plate (11) is bonded with the membrane electrode plate (12) through double-sided adhesive tape, and the air plate (11) and the membrane electrode plate (12) are sealed through a sealing ring; and
the membrane electrode plate (12) and the hydrogen plate (13) are bonded through double-sided adhesive tape, and a second hydrogen flow channel (136) is arranged on one side of the hydrogen plate (13).
2. The electrode plate structure for a hydrogen fuel cell according to claim 1, wherein an air flow channel (111) and a first hydrogen flow channel (116) are opened at one side of the air plate (11); the air flow channel (111) is positioned in the middle of the air plate (11); two groups of hydrogen flow channels I (116) are arranged, and the two groups of hydrogen flow channels I (116) are arranged on the air plate (11) in a central symmetry manner; an air plate water tank (117) is arranged on the other side of the air plate (11).
3. The electrode plate structure for the hydrogen fuel cell according to claim 2, wherein a first sealing groove (112) is formed on one side surface of the air plate (11), and the sealing ring is glued in the first sealing groove (112); the upper end and the lower end of the surface of the air plate (11) are provided with a first through hole (114) which is centrosymmetric; the left end and the right end of the air plate (11) are provided with a second through hole (113) which is centrosymmetric; the surface of the air plate (11) is provided with a first through hole (115).
4. The electrode plate structure for the hydrogen fuel cell according to claim 3, wherein a second sealing groove (131) is formed in one side surface of the hydrogen plate (13); a hydrogen plate water tank (135) is arranged on the surface of one side of the hydrogen plate (13); the hydrogen plate water tank (135) and the second sealing groove (131) are positioned on the same side face of the hydrogen plate (13); the upper end and the lower end of the surface of the hydrogen plate (13) are provided with a third through hole (133) which is centrosymmetric, and the left end and the right end of the hydrogen plate (13) are provided with a fourth through hole (134) which is centrosymmetric.
5. The electrode plate structure for a hydrogen fuel cell according to claim 4, characterized in that a second through-hole (123) is provided on the surface of the membrane electrode plate (12) corresponding to the first through-hole (115); a third through hole (132) is formed in the hydrogen plate (13) corresponding to the first through hole (115) and the second through hole (123); a flow groove (21) is formed in the surface of one side, close to the air plate (11), of the collector plate (2); the collector plate (2) is provided with connecting lugs (22) with a trapezoidal structure.
6. The electrode plate structure for a hydrogen fuel cell according to claim 5, wherein the first through hole (114) and the third through hole (133) are the same in shape and are both trapezoidal structures, and the first through hole (114) and the third through hole (133) correspond to each other; the second through hole (113) and the fourth through hole (134) are identical in shape and are both rectangular in structure, and the second through hole (113) and the fourth through hole (134) correspond to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221669687.4U CN218160489U (en) | 2022-06-29 | 2022-06-29 | Electrode plate structure for hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221669687.4U CN218160489U (en) | 2022-06-29 | 2022-06-29 | Electrode plate structure for hydrogen fuel cell |
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| Publication Number | Publication Date |
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| CN218160489U true CN218160489U (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221669687.4U Active CN218160489U (en) | 2022-06-29 | 2022-06-29 | Electrode plate structure for hydrogen fuel cell |
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- 2022-06-29 CN CN202221669687.4U patent/CN218160489U/en active Active
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