A two-dimensional structured nickel electrode

Abstract

The utility model discloses a two -dimensional structure's nickel electrode, including nickel metal base, a plurality of through -holes are seted up on the nickel metal base, a plurality of through -holes are evenly crossed periodical arrangement on two -dimensional XY direction. The utility model is thinner than the nickel electrode of the woven net structure of nickel silk on market, thereby has increased the surface area of contact with the electrolyte in water, help to improve electrolytic reaction rate and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electrode technology, and in particular to a two-dimensional nickel electrode. Background Technology

[0002] Nickel electrode mesh plays a crucial role in hydrogen production through water electrolysis. As an excellent electrocatalyst, nickel promotes the decomposition of water during electrolysis, effectively generating hydrogen. Its high electrochemical activity and excellent catalytic performance make the electrolysis process more efficient. Simultaneously, the nickel electrode mesh also possesses good electrical conductivity, effectively transferring electrons to achieve the current transport required during electrolysis. Therefore, this helps ensure the stability and controllability of the electrolysis process, improving hydrogen production efficiency.

[0003] Currently, such as Figure 3 As shown, the nickel electrode 3 on the market includes a braided mesh structure composed of nickel wires 4. The nickel wires 4 are interwoven and overlapped in the horizontal and vertical directions. This braided mesh structure results in a thicker nickel electrode mesh, which in turn affects the electrode efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a two-dimensional nickel electrode that is thinner than commercially available woven mesh structures, thereby increasing the surface area in contact with electrolytes in water and helping to improve the electrolysis reaction rate and efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a two-dimensional nickel electrode, comprising a nickel metal substrate, wherein a plurality of through holes are formed on the nickel metal substrate, and the plurality of through holes are uniformly and periodically arranged in the two-dimensional XY direction.

[0006] As a preferred embodiment, the nickel metal matrix is ​​a one-piece molded structure.

[0007] As a preferred embodiment, the nickel metal matrix is ​​formed by 3D printing.

[0008] As a preferred embodiment, the thickness of the nickel metal substrate is 0.17-0.20 mm.

[0009] As a preferred embodiment, the volume of the nickel metal substrate is 1.97 mm². 3 .

[0010] As a preferred embodiment, the surface area of ​​the nickel metal substrate is 18.36 mm². 2 .

[0011] As a preferred embodiment, the through hole is a regular hexagon in the two-dimensional XY direction.

[0012] As a preferred embodiment, the wire diameter between adjacent through holes on the nickel metal substrate is 0.17-0.20 mm, which is the distance between the sides of adjacent regular hexagons, and the sides of adjacent regular hexagons are arranged parallel to each other.

[0013] As a preferred embodiment, the through hole is circular in the two-dimensional XY direction.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the woven mesh structure of this utility model is thinner than that of commercially available products, thereby increasing the surface area in contact with electrolytes in water, which helps to improve the electrolysis reaction rate and efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a nickel electrode structure in which the through hole is a regular hexagon in the two-dimensional XY direction;

[0016] Figure 2 This is a schematic diagram of a nickel electrode structure in which the through hole is circular in the two-dimensional XY direction in this utility model;

[0017] Figure 3 This is a schematic diagram of a commercially available woven mesh nickel electrode;

[0018] The attached diagram is labeled as follows: 1. Nickel metal substrate; 2. Through hole; 3. Nickel electrode; 4. Nickel wire. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the protection scope of the present invention.

[0020] Example 1:

[0021] like Figure 1 As shown, a two-dimensional nickel electrode includes a nickel metal substrate 1, on which a plurality of through holes 2 are formed, and the plurality of through holes 2 are uniformly and periodically arranged in the two-dimensional XY direction.

[0022] Preferably, the nickel metal substrate 1 is a one-piece molded structure.

[0023] More preferably, the nickel metal substrate 1 is formed by 3D printing.

[0024] Specifically, the nickel metal substrate 1 with an integral molding structure has a high degree of control over its structural form and its strength is guaranteed. Compared with the mainstream nickel electrode 3 with a braided mesh structure composed of nickel wires 4, it greatly reduces the possibility of breakage and deformation.

[0025] Preferably, the thickness of the nickel metal substrate 1 is 0.17-0.20 mm.

[0026] Preferably, the volume of the nickel metal substrate 1 is 1.97 mm². 3 .

[0027] Preferably, the surface area of ​​the nickel metal substrate 1 is 18.36 mm². 2 .

[0028] Specifically, such as Figure 3 The commercially available nickel electrode 3, composed of a braided mesh structure made of nickel wire 4, has a wire diameter of 0.25 mm, a thickness of 0.50 mm, and a volume of 3.53 mm². 3 The surface area is 28.30 mm². 2 Compared with the aforementioned woven mesh structure composed of nickel wire 4, the nickel electrode 3 of this utility model is thinner, smaller in volume, and has a smaller surface area. This not only improves the efficiency of the nickel electrode 3 and maintains good performance, but also saves material usage and reduces costs.

[0029] Preferably, the through hole 2 is a regular hexagon in the two-dimensional XY direction.

[0030] More preferably, the wire diameter between adjacent through holes 2 on the nickel metal substrate 1 is 0.17-0.20 mm, which is the distance between the sides of adjacent regular hexagons, and the sides of adjacent regular hexagons are arranged parallel to each other.

[0031] Specifically, through the like Figure 3 The nickel electrode 3, which is a braided mesh structure composed of nickel wire 4, was tested on a commercially available product and the result was obtained at a current density of 5048 A / m. 2 Under the condition that the alkaline solution temperature is 80℃, the measured cell voltage is 2.18V. Under the same conditions, the cell voltage of the nickel electrode 3 with the through hole 2 in the two-dimensional XY direction is 2.09V. In comparison, the cell voltage of the nickel electrode 3 with the through hole 2 in the two-dimensional XY direction is smaller, indicating that the performance is better.

[0032] Example 2:

[0033] Compared with Embodiment 1, the difference in this embodiment is that the through hole 2 is circular in the two-dimensional XY direction.

[0034] Specifically, through the like Figure 3 The nickel electrode 3, which is a braided mesh structure composed of nickel wire 4, was tested on a commercially available product and the result was obtained at a current density of 5048 A / m. 2Under the condition that the alkaline solution temperature is 80℃, the measured cell voltage is 2.18V. Under the same conditions, the cell voltage of the nickel electrode 3 with the through hole 2 being circular in the two-dimensional XY direction in this invention is 2.11V. In comparison, the cell voltage of the nickel electrode 3 with the through hole 2 being circular in the two-dimensional XY direction in this invention is smaller, indicating better performance.

[0035] In summary, this invention is thinner than commercially available woven mesh structures, thereby increasing the surface area in contact with electrolytes in water, which helps to improve the electrolysis reaction rate and efficiency. Under the same conditions of thickness, volume, and surface area of ​​nickel metal substrate 1, the shape of the through hole 2 in the two-dimensional XY direction includes, but is not limited to, regular hexagons and circles. Different shapes of through holes 2 in the two-dimensional XY direction have different cell voltages, which can be applied according to actual needs. In the embodiments of this invention, the cell voltage of the nickel electrode 3 with the through hole 2 in the two-dimensional XY direction being regular hexagonal is less than the cell voltage of the nickel electrode 3 with the through hole 2 in the two-dimensional XY direction being circular. Therefore, the nickel electrode 3 with the through hole 2 in the two-dimensional XY direction has the best performance and efficiency.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A two-dimensional nickel electrode, characterized in that: The device includes a nickel metal substrate with a plurality of through holes arranged in a uniformly intersecting periodic pattern along a two-dimensional XY direction. The nickel metal substrate is a monolithic structure with a thickness of 0.17-0.20 mm and a volume of 1.97 mm². 3 The surface area of ​​the nickel metal substrate is 18.36 mm². 2 .

2. The two-dimensional nickel electrode according to claim 1, characterized in that: The nickel metal matrix is ​​formed by 3D printing.

3. The two-dimensional nickel electrode according to claim 1, characterized in that: The through hole is a regular hexagon in the two-dimensional XY direction.

4. A two-dimensional nickel electrode according to claim 3, characterized in that: The wire diameter between adjacent through holes on the nickel metal substrate is 0.17-0.20 mm. This wire diameter is the distance between the sides of adjacent regular hexagons, and the sides of adjacent regular hexagons are arranged parallel to each other.

5. A two-dimensional nickel electrode according to claim 1, characterized in that: The through hole is circular in the two-dimensional XY direction.

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