WO2008106824A1

WO2008106824A1 - Fuel cell

Info

Publication number: WO2008106824A1
Application number: PCT/CN2007/000719
Authority: WO
Inventors: Zhongde Zheng; Jinliang Wang; Jinhua Ren; Dongkui Wang; Xiaorong Sun; Hongdan Yin
Original assignee: Golden Energy Fuel Cell Co., Ltd.
Priority date: 2007-03-06
Filing date: 2007-03-06
Publication date: 2008-09-12
Also published as: CN101485020A; CN101485020B

Abstract

A fuel cell which comprises at least one battery unit. The battery unit comprises positive and negative electrode fluid guide plates and membrane electrodes. The membrane electrodes are disposed between the positive and negative electrode fluid guide plates, wherein a bolt hole is disposed on the non-periphery area of the positive and negative electrode fluid guide plates correspondingly. A fastening bolt is disposed in the bolt hole. A positive conductive plate is interposed between the positive fluid guide and the membrane electrode of the battery unit and a negative conductive plate is interposed between the negative fluid guide and the membrane electrode of the battery unit. A bolt hole is disposed on the positive and negative conductive plates and membrane electrodes correspondingly. A fastening bolt is disposed in the bolt hole. A fluid guide hole is provided on the positive fluid guide plate and the positive conductive plate respectively to connect the air. A fluid guide hole is provided on the negative fluid guide plate and the negative conductive plate respectively to connect the fuel room. The structure of the fuel cell of the invention is simple, the inner resistance is little, the output power is large, the disassembly and maintenance is convenient, the miniaturization is easy, multi-type voltage and current can be outputted and the operation is convenient.

Description

FUEL CELL FIELD OF THE INVENTION The present invention relates to fuel cells, and more particularly to proton exchange membrane fuel cells. Background Art A fuel cell is a highly efficient clean electricity generator that directly converts chemical energy such as hydrogen and an oxidant such as oxygen in the air into electrical energy by an electrochemical reaction, and has an extremely broad application prospect. The fuel cell comprises at least one battery unit, the battery unit has positive and negative baffles and membrane electrodes, the membrane electrode is located between the positive and negative baffles, and the membrane electrode is composed of a proton exchange membrane and positive and negative electrodes attached to both sides thereof. , its working principle is - hydrogen dissociates into protons and electrons through the negative electrode baffle reaching the negative electrode of the membrane electrode; protons reach the positive electrode of the membrane electrode through the proton exchange membrane; electrons reach the membrane through the negative deflector, load, positive baffle The positive electrode of the electrode; oxygen reaches the positive electrode of the membrane electrode through the positive electrode baffle; the proton, electron, and oxygen are combined into water at the positive electrode of the membrane electrode. Electrode reaction and battery reaction are:

Negative reaction: H ₂ = 2H ⁺ + 2e

Positive electrode reaction: 2H ⁺ + 2e + 0.5O ₂ = H ₂ O

Battery reaction: H ₂ + 0.5O ₂ = H ₂ O

Existing fuel cells are usually constructed by laminating battery cells, and the battery cells are pressed by an outer frame and an end plate. Since the outer frame is located at the outer periphery of the battery unit, the end pressure plate is located at both ends of the fuel cell, which is not only complicated in structure, inconvenient to assemble and disassemble, but also difficult to replace parts, which is disadvantageous to battery maintenance, and the outer frame and the end plate occupy a large space of the fuel cell. In the same battery size, the catalytic active area of the membrane electrode is relatively small, the central region of the fuel cell is not easily compressed, the internal resistance of the fuel cell is large, and the output power is small; because the end pressure plate prevents the direct diffusion of oxygen in the air to the membrane. The electrode participates in the positive reaction of the battery and the reaction heat of the fuel cell is directly emitted into the air, and requires various auxiliary devices such as a gas pump, a fan, a fan, a water pump, a cooling water plate, etc., which makes the fuel cell difficult to be miniaturized; The fuel cell output voltage and current are single and inconvenient to use. Summary of the invention The object of the present invention is to overcome the above drawbacks and provide a fuel cell which has a simple structure, small internal resistance, large output power, and can output various voltages and currents, is convenient to disassemble and maintain, is easy to be miniaturized, and is convenient to use.

The object of the invention is achieved in this way:

A fuel cell comprising at least one battery unit having positive and negative baffles and a membrane electrode, the membrane electrode being located between the positive and negative baffles, wherein: the positive and negative baffles A bolt hole is formed in the non-peripheral area, and a fastening bolt is inserted in the bolt hole.

The positive and negative baffles are insulating plates, and the non-peripheral regions of the positive and negative baffles are central regions.

A positive electrode conductive sheet is disposed between the positive electrode deflector and the membrane electrode of the battery unit, and a negative electrode conductive sheet is disposed between the negative electrode deflector and the membrane electrode, and the positive and negative conductive sheets and the membrane electrode are correspondingly provided with bolt holes. The fastening hole is inserted into the bolt hole, and the positive electrode baffle and the positive electrode conductive plate respectively have a flow guiding hole and air communication, and the negative electrode baffle and the negative electrode conductive piece respectively have a diversion hole and a fuel chamber Connected.

The battery unit has one of the fuel cells, and the fuel chamber is surrounded by a groove on the back surface of the negative electrode deflector and a bottom cover. The bottom cover is provided with a bolt hole, and the fastening hole is inserted into the bolt hole.

There are a plurality of battery cells, and the battery cells are arranged side by side. The fuel chamber of each battery cell is surrounded by a groove and a bottom cover on the back surface of the negative electrode deflector, and the bottom cover is provided with a bolt hole, and the bolt hole is worn inside. The fastening bolts are connected to each other, and the bottom baffles of the battery cells are integrally connected. The bottom cover of each battery unit is integrally connected, and the fuel chambers are connected, and the positive and negative conductive sheets of the adjacent battery cells are integrally connected.

The battery unit has a pair, and the negative electrode baffle is abutted against the anode, and the fuel chamber is formed by the recess of the back surface of the negative baffle.

The battery unit has a plurality of pairs, each pair of battery units are arranged side by side, and the negative electrode baffles of each pair of battery cells are oppositely facing each other, and the fuel chamber is formed by the corresponding recesses of the back surface of the negative electrode baffle plate, and each pair of batteries The fuel chambers of the unit are connected, and the negative baffles of the respective battery cells are integrated, and the positive and negative conductive sheets of the adjacent two battery cells are integrated.

The positive electrode baffles of the battery cells are connected together.

The positive baffles of the pair of battery cells are connected together.

The present invention has the following positive beneficial effects:

The fuel cell of the invention adopts a central bolt fastening method to connect the positive and negative deflectors, The membrane electrode and the positive and negative conductive sheets are pressed, and the positive and negative deflectors act as end plates. The fastening bolts are located at the center of the positive and negative deflectors and the membrane electrode. The fuel cell has a simple structure, convenient assembly and disassembly, and replacement of components. Easy and easy to maintain;

The fastening bolt only occupies a small space of the fuel cell, the catalytic active area of the membrane electrode is relatively large, and the central region of the fuel cell is also easy to be compacted. Under the same battery outer shape, the internal resistance of the fuel cell is small, and the output power is large;

Since there is no end plate, the positive baffle is completely exposed to the air, and the diversion hole is directly connected with the air. The oxygen in the air directly diffuses to the membrane electrode to participate in the positive reaction of the battery, and the reaction heat of the fuel cell is directly emitted into the air, without An auxiliary device such as a gas pump, a fan, a fan, a water pump, a cooling water plate, etc., so that the fuel cell is easy to be miniaturized;

The negative baffle of each battery unit is integrated into one body, which not only simplifies the structure of the fuel cell, but also facilitates disassembly and assembly, and increases the overall strength, and the positive baffle of each battery unit is integrated, which not only simplifies the structure of the fuel cell, It is more convenient to disassemble and assemble, and further increase the overall strength;

The positive and negative conductive sheets of adjacent battery cells can be integrated into one body, and no welding and other conductive connecting members are needed, and the structure is simplified, and the disassembly and assembly is convenient. Adjacent battery cells can be connected in series or in parallel (in series, the positive and negative conductive sheets of adjacent battery cells are connected together; when connected in parallel, the positive and negative conductive sheets of adjacent battery cells are connected together, negative and negative conductive sheets As a whole, the battery cells of the fuel cell can be conveniently connected in series, parallel, and mixed according to needs, thereby realizing various voltage and current outputs, and being convenient to use. Brief Description of the Drawings Fig. 1 is a plan view showing a first embodiment of the present invention.

Figure 2 is an enlarged cross-sectional view taken along line A - A of Figure 1;

Figure 3 is a plan view of a second embodiment of the present invention.

Figure 4 is an enlarged cross-sectional view taken along line B-B of Figure 3;

Figure 5 is a plan view of a third embodiment of the present invention.

Figure 6 is an enlarged cross-sectional view taken along line C-C of Figure 5;

Figure 7 is a cross-sectional view showing a fourth embodiment of the present invention.

Figure 8 is a cross-sectional view showing a fifth embodiment of the present invention.

Figure 9 is a cross-sectional view showing a sixth embodiment of the present invention. Embodiment of the present invention W Example 1

Referring to FIG. 1 and FIG. 2, the present invention is a fuel cell comprising a battery unit 10 having a positive electrode baffle 11, a negative electrode baffle 12 and a membrane electrode 13, and the membrane electrode 13 is located at the positive electrode conductance. Between the plate 11 and the negative electrode baffle 12, the center of the positive electrode baffle 11 and the negative electrode baffle 12 are correspondingly provided with bolt holes, and the fastening bolts 1 are bored in the bolt holes.

A positive electrode conductive sheet 14 is disposed between the positive electrode deflector 11 and the membrane electrode 13 of the battery unit 10, and a negative electrode conductive sheet 15, a positive electrode conductive sheet 14, and a negative electrode conductive sheet 15 are disposed between the negative electrode deflector 12 and the membrane electrode 13. The center of the membrane electrode 13 is correspondingly provided with a bolt hole, the bolt hole is provided with a fastening bolt 1 , the positive electrode baffle 11 is provided with a flow guiding hole 111 , and the positive electrode conductive sheet 14 is provided with a guiding hole 141 , and a guiding hole 111, 141 is in communication with the air.

The anode baffle 12 has a flow guiding hole 121, and the negative electrode conductive sheet 15 has a flow guiding hole 151, and the flow guiding holes 121 and 151 communicate with the fuel chamber 3.

The fuel chamber 3 of the battery unit 10 is surrounded by a recess 122 and a bottom cover 6 on the back surface of the negative deflector 12, and a bolt hole is formed in the center of the bottom cover 6.

The fastening bolt 1 is sequentially passed through the bolt hole at the center of the bottom cover 6 through the negative electrode baffle 12, the negative electrode conductive plate 15, the membrane electrode 13, the positive electrode conductive plate 14, and the bolt hole at the center of the positive electrode deflector 11, and then the nut 2 is Locked.

The fuel chamber 3 has a fuel inlet 4 on one side and a fuel outlet 5 on the other side. The fuel outlet 5 serves to evacuate and connect other battery unit fuel inlets.

The positive electrode baffle plate 11 and the negative electrode baffle plate 12 may be composed of a plastic plate. The positive electrode conductive piece 14 and the negative electrode conductive piece 15 may be composed of a nickel piece, a stainless steel piece, a gold plated copper piece or the like, and the bottom cover 6 may be composed of a plastic plate.

The working principle of this embodiment is:

The hydrogen fuel enters the fuel chamber 3 from the fuel inlet 4, and the hydrogen gas sequentially passes through the flow guiding hole 121 on the negative electrode deflector 12, the flow guiding hole 151 on the negative electrode conductive sheet 15, and reaches the negative electrode of the membrane electrode 13 to dissociate into protons and electrons; The protons reach the positive electrode of the membrane electrode 13 through the proton exchange membrane; the electrons pass through the negative electrode conductive sheet 15, the load, and the positive electrode conductive sheet 14 reach the positive electrode of the membrane electrode 13; the oxygen passes through the flow guiding hole 111 on the positive electrode deflector 11, and the positive electrode conductive sheet 14 The upper flow guiding hole 141 reaches the positive electrode of the membrane electrode; the protons, electrons, and oxygen are combined in the positive electrode of the membrane electrode 13 to form water.

In the embodiment, the positive electrode baffle 11 and the negative electrode baffle 12 not only serve to press the membrane electrode 13, the positive electrode conductive sheet 14, and the negative electrode conductive sheet 15, but also function as heat conduction and heat dissipation, and the flow guiding hole thereof 111, 121 also played a role in guiding air and guiding water. The positive electrode conductive sheet 14 and the negative electrode conductive sheet 15 function as a conductive force, and the flow guiding holes 141 and 151 also function to conduct air and conduct water.

In this embodiment, only one fastening bolt 1 is used to penetrate the center of the fuel cell, the structure is simple, the disassembly and assembly is convenient, the replacement parts are easy, and the maintenance is easy; the fastening bolt 1 occupies only a small space of the fuel cell, and the membrane electrode 13 is catalyzed. The active area is relatively large, and the central portion of the fuel cell is also easily compressed. Therefore, under the same battery size, the internal resistance of the fuel cell is small and the output power is large; since there is no end plate, the positive baffle 11 is completely exposed to the air. The guiding hole 111 is directly connected with the air, and the oxygen in the air directly diffuses to the membrane electrode 13 to participate in the positive electrode reaction of the battery, and the reaction heat of the fuel cell is directly emitted into the air, without the aid of an air pump, a fan, a fan, a water pump, a cooling water plate, etc. The device is thus easy to miniaturize and easy to use. Embodiment 2

Referring to FIG. 3 and FIG. 4, the present invention is a fuel cell comprising two battery cells 10, and the two battery cells 10 are arranged side by side. The structure of each battery cell 10 is the same as that of the first embodiment, and each battery cell 10 is The fuel chamber 3 is surrounded by a recess 122 and a bottom cover 6 on the back surface of the negative electrode deflector 12. The negative baffles 12 of the two battery cells 10 are integrally connected, and the bottom cover 6 of the two battery cells 10 are connected. Integrated, the fuel cells 3 of the two battery cells 10 are in communication with a fuel inlet 4 on one side and a fuel outlet 5 on the other side.

The negative baffle 12 is integrally connected, and the bottom cover 6 is integrated, which not only simplifies the structure of the fuel cell, but also facilitates disassembly and assembly, and increases the overall strength.

In this embodiment, the positive electrode conductive sheets 14 of the first battery unit 10 are integrated with the negative electrode conductive sheets 15 of the second battery unit 10, thereby connecting the two battery units 10 in series without soldering and other conductive connections. Parts, simplified structure, easy to disassemble.

The working principle of this embodiment is the same as that of the first embodiment, and is not redundant.

In practice, the positive electrode conductive sheet 14 of the first battery unit 10 and the positive electrode conductive sheet 14 of the second battery unit 10 may be integrally connected, and the negative electrode conductive sheet 15 of the first battery unit 10 and the second battery may be connected. The negative electrode conductive sheets 15 of the unit 10 are integrally connected, thereby connecting the two battery cells 10 in parallel.

When implemented, a plurality of battery cells can be arranged side by side in the above manner, and the battery cells of the fuel cell can be conveniently connected in series, parallel, and mixed according to requirements, thereby realizing various voltage and current outputs, and being convenient to use. Embodiment 3

Referring to FIG. 5 and FIG. 6, the present invention is a fuel cell comprising two battery cells 10, the structure of which is basically the same as that of the second embodiment, except that the positive electrode baffles of the two battery cells 10 are connected. As a whole, not only the structure of the fuel cell is simplified, the disassembly and assembly is more convenient, and the overall strength of the fuel cell is further increased.

The working principle of this embodiment is the same as that of the first embodiment, and will not be repeated. Embodiment 4

Referring to Figure 7, the present invention is a fuel cell comprising a pair of battery cells 50 comprised of two battery cells 20, 30 stacked on a battery cell 20.

The battery unit 20 has a positive electrode baffle 21, a negative electrode baffle 22 and a membrane electrode 23, and the membrane electrode 23 is located between the positive electrode baffle 21 and the negative electrode baffle 22, and the positive electrode baffle 21 and the negative electrode baffle 22 A bolt hole is formed in the center, and a fastening bolt 1 is inserted in the bolt hole.

A positive electrode conductive sheet 24 is disposed between the positive electrode deflector 21 and the membrane electrode 23, and a negative electrode conductive sheet 25 is disposed between the negative electrode deflector 22 and the membrane electrode 23.

The center of the positive electrode conductive sheet 24, the negative electrode conductive sheet 25, and the membrane electrode 23 is correspondingly provided with a bolt hole through which the fastening bolt 1 is bored.

The positive electrode baffle 21 is provided with a flow guiding hole 21, and the positive electrode conductive piece 24 is provided with a flow guiding hole 241, and the guiding holes 21 1 and 241 are in communication with the air.

The anode baffle 22 has a flow guiding hole 221, and the negative electrode conductive sheet 25 has a flow guiding hole 251, and the guiding holes 221 and 251 communicate with the fuel chamber 3.

The battery unit 30 has a positive electrode baffle 31, a negative electrode baffle 32 and a membrane electrode 33. The membrane electrode 33 is located between the positive electrode baffle 31 and the negative baffle 32, and the positive baffle 3 1 and the negative electrode conductance. A bolt hole is formed in the center of the plate 32, and a fastening bolt 1 is bored in the bolt hole.

A positive electrode conductive sheet 34 is disposed between the positive electrode baffle 31 and the membrane electrode 33, and a negative electrode conductive sheet 35 is disposed between the negative electrode baffle 32 and the membrane electrode 33.

The center of the positive electrode conductive sheet 34, the negative electrode conductive sheet 35, and the membrane electrode 33 is correspondingly provided with a bolt hole through which the fastening bolt 1 is bored.

The positive electrode baffle plate 3 has a flow guiding hole 3, and the positive electrode conductive piece 34 has a flow guiding hole 341, and the guiding holes 31 1 and 341 communicate with the air.

The anode baffle 32 has a flow guiding hole. The negative electrode conductive sheet 35 has a flow guiding hole 35. The flow guiding holes 321 and 351 communicate with the fuel chamber 3.

The fastening bolt 1 passes through the positive electrode deflector 21 of the battery unit 20, the positive electrode conductive sheet 24, the membrane electrode 23, the negative electrode conductive sheet 25, the negative electrode deflector 22, and the battery unit in this order. After the center through-holes of the negative electrode baffle 32, the negative electrode conductive sheet 35, the membrane electrode 33, the positive electrode conductive sheet 34, and the positive electrode deflector 35 of 30, the nut 2 is locked.

The back surface of the negative electrode baffle 22 has a recess 222, the back surface of the negative electrode baffle 32 has a recess 322, the negative baffles 22, 32 are abutted against each other, and the recesses 222, 322 are relatively fastened to form a fuel chamber 3, fuel The chamber 3 has a fuel inlet 4 on one side and a fuel outlet 5 on the other side.

The positive electrode baffles 21, 3 1 and the negative electrode deflectors 22, 32 may be composed of a plastic plate, and the positive electrode conductive sheets 24, 34 and the negative electrode conductive sheets 25, 35 may be composed of a nickel piece, a stainless steel piece, a gold plated copper piece or the like.

The working principle of this embodiment is the same as that of the first embodiment, and will not be described again.

In this embodiment, only one fastening bolt 1 is used to penetrate the center of the fuel cell, the structure is simple, the disassembly and assembly is convenient, the replacement parts are easy, and the maintenance is easy; the fastening bolt 1 occupies only a small space of the fuel cell, and the membrane electrode 23, 33 The catalytic active area is relatively large, and the central region of the fuel cell is also easily compacted. Therefore, under the same battery external dimensions, the internal resistance of the fuel cell is small and the output power is large; since there is no end plate, the positive electrode baffles 21, 31 are completely Exposed to the air, the diversion holes 211, 3 11 are directly connected to the air, and the oxygen in the air directly diffuses to the membrane electrodes 23, 33 to participate in the positive electrode reaction of the battery, and the reaction heat of the fuel cell is directly emitted into the air, without the need of an air pump or a fan. The auxiliary device such as a fan, a water pump, a cooling water plate, and the like, so that the fuel cell is easy to be miniaturized and convenient to use. Embodiment 5

Referring to Figure 8, the present invention is a fuel cell comprising two pairs of battery cells 50, each pair of battery cells 50 being comprised of two battery cells 20, 30 stacked on a battery cell 20. The structure of each pair of battery cells 50 is the same as that of the fourth embodiment.

The negative baffles 22 of the lower two battery cells 20 of the two pairs of battery cells 50 are integrally connected, and the negative baffles 32 of the upper two battery cells 30 of the two pairs of battery cells 50 are integrated, not only for the fuel cell The structure is simplified, the disassembly and assembly is convenient, and the overall strength of the fuel cell is increased.

The negative electrode conductive sheets 25 of the first pair of battery cells 50 are integrated with the positive electrode conductive sheets 24 of the second pair of battery cells 50, thereby connecting the lower two battery cells 20 of the two pairs of battery cells 50 in series without soldering and the like. Conductive connector, simplified structure, easy to disassemble.

The positive conductive sheets 34 of the first pair of battery cells 50 are integrated with the negative conductive sheets 35 of the second pair of battery cells 50, thereby connecting the upper two battery cells 30 of the two pairs of battery cells 50 in series, without soldering and the like. Conductive connector, simplified structure, disassembly Convenience.

The working principle of this embodiment is the same as that of the first embodiment, and details are not described herein.

In practice, the positive electrode conductive sheets 24 of the lower two battery cells 20 of the two pairs of battery cells 50 may be integrally connected, and the negative electrode conductive sheets 25 of the lower two battery cells 20 of the two pairs of battery cells 50 may be integrated into one body. The lower two battery cells 20 of the two pairs of battery cells 50 are thereby connected in parallel. The positive electrode conductive sheets 34 of the upper two battery cells 30 of the two pairs of battery cells 50 are integrally connected, and the negative electrode conductive sheets 35 of the upper two battery cells 30 of the two pairs of battery cells 50 are integrally connected, thereby The upper two battery cells 30 of the battery unit 50 are connected in parallel.

In practice, a plurality of pairs of battery cells may be arranged side by side in the above manner, and each pair of battery cells of the fuel cell may be conveniently connected in series, parallel, and mixed according to requirements, thereby realizing various voltage and current outputs, and being convenient to use. Embodiment 6

Referring to FIG. 9, the present invention is a fuel cell comprising two pairs of battery cells 50, the structure of which is substantially the same as that of the fifth embodiment, except that the positive electrode conductance of the lower two battery cells 20 of the two pairs of battery cells 50 is different. The plates 21 are integrated, and the positive baffles 31 of the two upper battery cells 30 of the two pairs of battery cells 50 are integrated into one body, which not only simplifies the structure of the fuel cell, but also facilitates disassembly and assembly, and further strengthens the overall strength of the fuel cell. Increase.

Claims

Claim

What is claimed is: 1. A fuel cell comprising at least one battery cell having positive and negative baffles and a membrane electrode, the membrane electrode being located between the positive and negative baffles, characterized by

5: The non-peripheral region of the positive and negative baffles corresponds to a bolt hole, and the bolt hole is provided with a fastening bolt.

The fuel cell according to claim 1, wherein the positive and negative baffles are insulating plates, and the non-peripheral regions of the positive and negative baffles are central regions.

The fuel cell according to claim 1, wherein the positive and negative L0 deflectors are insulating plates, and the non-peripheral regions of the positive and negative deflectors are central regions.

4. The fuel cell according to claim 1, wherein: a positive electrode conductive sheet is disposed between the positive electrode deflector and the membrane electrode of the battery unit, and a negative electrode conductive sheet is disposed between the negative electrode deflector and the membrane electrode. a bolt hole is formed in the positive and negative conductive sheets and the membrane electrode, and the fastening bolt is inserted in the bolt hole, and the positive electrode deflector and the positive electrode are electrically conductive

15 channels are respectively provided with a flow guiding hole and air communication, and the negative electrode deflecting plate and the negative electrode conductive piece are respectively connected with a guiding hole to communicate with the fuel chamber.

5. The fuel cell according to claim 4, wherein: the battery unit has one, the fuel chamber is surrounded by a groove and a bottom cover on the back surface of the negative electrode deflector, and the bottom cover is provided with a bolt hole. The fastening bolt is worn in the bolt hole.

The fuel cell according to claim 4, wherein: the battery unit has a plurality of battery cells arranged side by side, and the fuel chamber of each battery unit is surrounded by a groove and a bottom cover of the back surface of the negative electrode deflector. The bottom cover is provided with a bolt hole, the fastening bolt is inserted into the bolt hole, and the negative baffle of each battery unit is integrally connected, and the bottom cover of each battery unit is integrally connected, and the fuel chamber is connected. The positive and negative conductive sheets of adjacent battery cells are connected in one piece.

7. The fuel cell according to claim 4, wherein: the battery unit has a pair, and the negative electrode baffle is abutted against the anode, and the fuel chamber is relatively fastened by a groove on the back surface of the negative baffle. .

8. The fuel cell according to claim 4, wherein: the battery unit 0 has a plurality of pairs, each pair of battery units are arranged side by side, and the anode deflector of each pair of battery units is facing away from each other, the fuel chamber The recesses on the back surface of the negative deflector are relatively fastened, and the fuel chambers of the pair of battery cells are connected, and the negative baffles of the opposite battery cells are integrated, and the positive and negative conductive sheets of the adjacent two battery cells are connected. One.

9. The fuel cell according to claim 6, wherein: each of the battery sheets The anode baffles of the element are connected together.

10. The fuel cell according to claim 8, wherein: the positive electrode baffles of the respective pair of battery cells are integrally connected.