1、 Definition of 9-micron microporous aluminum foil
9-micron microporous aluminum foilIt refers to aluminum foil with a pore structure formed on the surface after special treatment, with a pore size of 9 microns. Its main characteristics are high specific surface area, high gas permeability, good conductivity, and high mechanical properties.
2、 Preparation method of 9-micron microporous aluminum foil
The preparation method of 9-micron microporous aluminum foil is similar to that of ordinary microporous aluminum foil, usually prepared by electrochemical corrosion or chemical corrosion. However, the preparation of 9-micron microporous aluminum foil is relatively complex and requires strict control of process parameters and reaction conditions to obtain a microporous structure with specified pore size, porosity, and uniformity. Among them, the electrochemical corrosion method has a higher preparation cost and greater process difficulty, but the surface of the prepared product is smoother and the pore size distribution is more uniform; The preparation cost of chemical corrosion method is relatively low, but the process parameters during the preparation process need to be controlled to ensure the uniformity of the pore size and distribution of the product.
3、 Characteristics of 9-micron microporous aluminum foil
1. High specific surface area
The surface of 9-micron microporous aluminum foil has a porous structure, with a much larger specific surface area than ordinary aluminum foil, which can enhance the microstructure of the aluminum foil surface, facilitate the diffusion of substances, and enhance the adsorption of electrolyte, which is conducive to improving the efficiency of electrochemical reactions.
2. High gas permeability
9-micron microporous aluminum foil has high breathability, and the interconnection between pores is conducive to the diffusion and dissipation of gases, while also having good battery explosion resistance.
3. Good conductivity
Aluminum itself has good conductivity, and the surface of aluminum foil treated with micropores forms micro electrodes and conductive channels, making it easier for electrons to transfer inside the battery.
4. High mechanical performance
9-micron microporous aluminum foil has good mechanical properties, can withstand high pressure, and is not easily deformed or broken.
5. Adjustable pore size and porosity
The pore size and porosity of 9-micron microporous aluminum foil can be adjusted by controlling the process parameters during the preparation process to meet the performance requirements of the battery. In addition, this aluminum foil also provides a wide range of application fields, such as filter materials, biosensors, and thin-film electrical devices, with broad market development space.
4、 Application of 9-micron microporous aluminum foil
The application range of 9-micron microporous aluminum foil is very wide, which can be used as a current collector for lithium-ion batteries and other electrochemical batteries. At the same time, it can also be applied in micro cutting, micro machining, optical reflection, heat dissipation and other fields. The main application areas include:
1. Lithium ion battery current collector
9-micron microporous aluminum foil can be used as a negative current collector for lithium-ion batteries, with small pore size and high porosity. It has a small electrochemical equivalent circuit (ECI) and a high specific surface area, which is beneficial for improving battery charging and discharging speed and increasing battery capacity.
2. Filter material
9-micron microporous aluminum foil has good filtration and ventilation performance, and is suitable for preparing filter materials and filters. In addition, when used as a reinforcement in spray drying, you can master the control spectrum of mesoporous structure formation and adjust the thickness and film structure.
3. Biosensors
The high gas permeability of 9-micron microporous aluminum foil can be used to create biosensors, such as gas sensors and biosensors. By depositing biomolecules, microporous aluminum foil can be used as a supporting material in biological applications such as microbial reactors.
4. Thin film electrical components
9-micron microporous aluminum foil can be used as a conductor, optical reflector, or insulation material for thin-film electrical devices. In addition, it can also be used as a stabilizer in latex production, which is particularly important for controlling the structure and stability of latex particles.
5、 Summary
9-micron microporous aluminum foil is a new type of conductive material with high specific surface area, high gas permeability, good conductivity, and high mechanical properties. With the continuous development of the new energy vehicle field, its applications in lithium-ion battery electrode current collectors, filter materials, biosensors, and thin-film electrical devices will become more extensive, and it will have broad market prospects in the future.
en 
