An integrated electrode with an airway

Abstract

The present invention relates to an integrated electrode with an airway, comprising an electrode body, a plurality of airway plates stamped on the electrode body, the top of the airway plate constituting a contact surface, an airway structure formed between the airway plate and the electrode body, and three edges of the airway plate being disconnected from the electrode body, or at least two edges of the airway plate being disconnected from the motor body. Therefore, the airway plate is formed by stamping, and no etching process is required, which is convenient for batch processing, and has low manufacturing cost and high processing efficiency. The airway plate can present a convex effect relative to the electrode body, and has a relative plane, which is convenient for contact with battery cells or metal parts. An arc bend is provided, so that the airway plate has a certain elasticity, so that the entire electrode has a certain compressibility in this direction. A plurality of airway plates are distributed as needed, the ventilation area is increased, and the gas can better react with the battery cells.

Description

Technical Field

[0001] The invention relates to an electrode accessory, in particular to an integrated electrode with an airway. Background Art

[0002] Energy and environment are important issues facing all mankind. Considering the requirements of sustainable development, fuel cell technology is attracting the attention of energy workers. In the design of SOFC fuel cell stacks, the power supply and gas distribution of the battery cells are generally carried out separately. Different technologies are used for the cathode and anode electrodes. The cathode uses a precious metal silver mesh structure that is not easy to oxidize, and the anode uses a foam nickel structure. The gas distribution of the battery cells (supplying hydrogen and other anode reaction gases to the battery cell anode and air to the battery cell cathode) is completed using an airway plate.

[0003] At the same time, the earliest anode directly used nickel foam for gas distribution, and the cathode added a layer of airway grille plate on the silver mesh to use the airway for gas distribution. Up to now, the airway grille plate is combined with the metal support frame of the battery to form an airway plate. The anode gas distribution is like the cathode gas distribution, and the contact area with the bubble cell is small. The cathode is a mesh structure of a double-layer silver mesh, and the contact area between the gas and the battery cell is uncertain, but because the metal support plate of the silver mesh nickel foam is added with an airway, the airway is used for gas distribution. At the same time, the airway for gas distribution of the battery cell uses a straight airway on the airway plate, and on the battery stack support, the battery power is taken by nickel foam.

[0004] However, this structure has many shortcomings. On the anode side of the battery cell, the battery cell and the airway are separated by nickel foam, and the anode gas does not directly contact the battery cell. In addition, because the airway is a straight airway, the airway volume is small, and the gas and electric holes are misaligned. It is known that a large number of meshes in the double-layer silver mesh are misaligned and blocked, so the contact surface between the gas and the battery cell is also not large. But the silver mesh itself is a relatively hard structure. In addition, in order to connect the silver mesh to the cathode of the battery cell, a certain external force needs to be applied. As a result, the battery gas distribution is uneven, and the electrode and the battery cell are in hard contact.

[0005] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create an integrated electrode with an airway to make it more valuable for industrial use. Summary of the invention

[0006] In order to solve the above technical problems, an object of the present invention is to provide an integrated electrode with an airway.

[0007] An integrated electrode with an airway of the present invention comprises an electrode body, wherein: a plurality of airway plates are stamped and formed on the electrode body, the top of the airway plates constitutes a contact surface, an airway structure is formed between the airway plates and the electrode body, three edges of the airway plates are disconnected from the electrode body, or at least two edges of the airway plates are disconnected from the motor body.

[0008] Furthermore, in the above-mentioned integrated electrode with air channel, a copper coating, a nickel coating, a silver coating, or a platinum coating is distributed on the electrode body.

[0009] Furthermore, in the above-mentioned integrated electrode with airway, the airway plate is L-shaped and has an arc bend.

[0010] Furthermore, in the above-mentioned integrated electrode with air channel, the contact surface is a plane, and the plane is parallel to the horizontal plane reference.

[0011] Furthermore, in the above-mentioned integrated electrode with air channel, the edge of the electrode body is provided with a circular arc chamfer.

[0012] Furthermore, in the above-mentioned integrated electrode with airway, the airway plates are arranged with openings aligned; or, arranged with openings opposite to each other; or, arranged with openings staggered at 90 degrees.

[0013] By means of the above scheme, the present invention has at least the following advantages:

[0014] 1. The airway plate is formed by stamping, and no etching is required, which is convenient for batch processing, low manufacturing cost and high processing efficiency.

[0015] 2. The airway plate can present a convex effect relative to the electrode body, and both have relative planes to facilitate contact with the battery cell or metal parts.

[0016] 3. An arc bend is provided to make the airway plate have a certain elasticity, so that the entire electrode has a certain compressibility in this direction.

[0017] 4. Use several airway plates to distribute as needed, increase the ventilation area, and allow the gas to react better with the battery cells.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the integrated electrode with airway.

[0020] Figure 2 It is a schematic diagram of the appearance structure of the airway plate.

[0021] The meanings of the reference numerals in the drawings are as follows.

[0022] 1 Electrode body 2 Airway plate

[0023] 3 arc bends 4 contact surfaces DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] like Figure 1 , Figure 2 An integrated electrode with an airway includes an electrode body 1, which is different in that: a plurality of airway plates 2 are stamped on the electrode body 1, and a contact surface 4 is formed on the top of the airway plate 2 in order to achieve contact with the battery cell or metal parts. In addition, due to stamping, a certain gap difference is provided between the airway plate 2 and the electrode body 1, and the gap difference constitutes an airway structure. At the same time, in order to achieve smooth conduction of the airway structure, the three edges of the airway plate 2 are disconnected from the electrode body 1, or at least two edges of the airway plate 2 are disconnected from the motor body. In this way, there will be no obstruction to the airflow.

[0026] In combination with a preferred embodiment of the present invention, in order to have a better electrical conduction effect and meet the use requirements of different battery cells, a copper coating, a nickel coating, a silver coating, or a platinum coating is distributed on the electrode body 1.

[0027] Furthermore, in order to allow the airway plate 2 to have a certain elasticity and avoid unnecessary abnormal deformation under pressure, the airway plate 2 used in the present invention is L-shaped and is provided with a circular arc bend 3. At the same time, considering the different requirements of subsequent battery gas distribution, the airway plate 2 is arranged in a manner of consistent openings; or, arranged in a manner of relative openings. For some special application needs, the openings can also be staggered at 90 degrees. .

[0028] Furthermore, in order to ensure better contact with the battery cell or metal parts after assembly and avoid contact gaps, the contact surface 4 used in the present invention is a plane, which is parallel to the horizontal plane. In addition, in order to prevent the airway plate 2 from having sharp edges after stamping and scratching other parts, the edge of the electrode body 1 can be processed with a circular chamfer.

[0029] It can be seen from the above textual description and the accompanying drawings that the present invention has the following advantages:

[0030] 1. The airway plate is formed by stamping, and no etching is required, which is convenient for batch processing, low manufacturing cost and high processing efficiency.

[0031] 2. The airway plate can present a convex effect relative to the electrode body, and both have relative planes, which is convenient for contact with battery cells or metal parts.

[0032] 3. An arc bend is provided to make the airway plate have a certain elasticity, so that the entire electrode has a certain compressibility in this direction.

[0033] 4. Use several airway plates to distribute as needed, increase the ventilation area, and allow the gas to react better with the battery cells.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An integrated electrode with an airway, comprising an electrode body, a plurality of airway plates are stamped on the electrode body, the top of the airway plates constitutes a contact surface, and an airway structure is formed between the airway plates and the electrode body, characterized in that: The three edges of the airway plate are disconnected from the electrode body, a copper coating is distributed on the electrode body, the airway plate is L-shaped and is provided with an arc bend; the contact surface is a plane, and the plane is parallel to the horizontal plane reference; the edge of the electrode body is provided with an arc chamfer; the airway plate is staggered and distributed with an opening angle of 90 degrees.

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