Application potential and preparation method of PP copper plated film in negative electrode current collector of lithium-ion batteries

With the rapid development of new energy vehicles and portable electronic devices, the energy density, cycling stability, and safety of lithium-ion batteries have become the focus of industry attention. PP (polypropylene) copper plated film, as a composite material combining polypropylene substrate and copper coating, has shown great potential in the field of lithium-ion battery negative electrode current collector due to its unique properties. This article will explorePP copper plated filmThe application potential in the negative electrode current collector of lithium-ion batteries is discussed, and an advanced preparation method is introduced. At the same time, the advanced institute (Shenzhen) Technology Co., Ltd., which has professional technology in this field, is mentioned.

Application potential

1. Improve battery cycling stability:

   • Stress relief: PP copper plated film has a unique fiber structure and flexibility, which can effectively alleviate the stress caused by lithium dendrite growth and volume changes, maintain the integrity of the current collector, and thus improve the cycling stability of the battery.
   • Porous structure: Its porous structure provides abundant diffusion channels for lithium ions, allowing them to quickly move during charging and discharging, thereby improving the energy density and power density of the battery.

2. Lightweight design:

   • Lightweight characteristics: PP copper plated film is lightweight and thin in thickness. Using it as a negative electrode current collector material can significantly reduce the weight of lithium-ion batteries, which is of great significance for fields such as new energy vehicles that require lightweight design.

3. Excellent conductivity:

   • Current transmission: PP copper plated film has excellent conductivity and can meet the high requirements of high-precision electronic components for current transmission efficiency, ensuring stable current output of the battery during charging and discharging processes.

4. Flexibility and adaptability:

   • Easy to process:PP copper plated filmIt can be conveniently cut, bent, and welded to adapt to various complex battery structure designs, improving the flexibility and adaptability of lithium-ion battery manufacturing.

5. Environmental friendliness:

   • Recyclable materials: The material of PP copper plated film is recyclable and in line with the current trend of sustainable development, which is of great significance for promoting the development of green energy and environmental protection industries.

Preparation method

An advanced method for preparing PP copper plated film, particularly suitable for the application of negative electrode current collectors in lithium-ion batteries, has been successfully developed by relevant research institutions and enterprises. The following are the detailed steps of the preparation method:

1. Preparation of PP fiber membrane:

   • PP fiber membrane was prepared by melt electrospinning method. After ultrasonic cleaning of PP masterbatch in ethanol to remove surface stains, it is added to a needle tube and heated to melt PP. Under the action of a high-voltage electric field, PP melt will form Taylor cones and be stretched into fibers, ultimately solidifying on aluminum foil to form a PP fiber film.

2. Copper plating treatment of PP fiber membrane:

   • Surface pretreatment of PP fiber film includes steps such as degreasing, roughening, neutralization, activation, and sensitization to improve the adhesion and uniformity of copper coating.
   • Place the processed PP fiber film in the plating solution for chemical copper plating. Copper plating solutions typically contain CuSO4 HCHO、 By controlling the pH value, copper plating temperature, and copper plating time of the plating solution, potassium sodium tartrate, NH4Cl, NaOH, and other components, high-quality copper plated PP fiber film can be obtained.

Contribution of Advanced Institute (Shenzhen) Technology Co., Ltd

Advanced Institute (Shenzhen) Technology Co., Ltd. has profound technological accumulation and innovative strength in the field of conductive materials. The company focuses on the research and production of thermal conductive materials, shielding materials, flexible electrode materials, and other products. Among them, PP copper plated film is one of its important products, demonstrating excellent performance and wide application prospects.

Through continuous technological research and optimization, we have improvedPP copper plated filmThe adhesion and uniformity of the copper layer have reduced production costs, providing a more reliable and economical solution for the application of negative electrode current collectors in lithium-ion batteries. At the same time, the company is committed to promoting the application and expansion of PP copper plated film in more fields, making greater contributions to the development of new energy technology and environmental protection industry.

conclusion

PP copper plated film has shown great potential and value in the field of negative electrode current collectors for lithium-ion batteries due to its high conductivity, good processing performance, and environmental friendliness. With the continuous advancement of technology and the expansion of the market, PP copper plated film is expected to play an important role in more fields. As a leader in this field, Advanced Institute (Shenzhen) Technology Co., Ltd. will continue to be committed to technological innovation and product optimization, contributing to the development of new energy technology and the environmental protection industry.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.