With the rapid development of electric vehicles, energy storage systems and other fields, lithium-ion batteries, as an important energy storage device, are in increasing demand. In the production process of lithium ion batteries, folding filter cartridge technology is an important process, which can effectively improve the performance and stability of batteries. This article will discuss the requirements of lithium ion battery industry for folding filter cartridge technology in order to better understand the role and significance of this key process in battery production.

1. Introduction to folding filter cartridge technology

folding filter cartridge technology refers to one of the key technologies used to prepare positive and negative electrodes of lithium ion batteries during the production process. The positive and negative electrode structures of the battery are formed by stacking the positive and negative electrode sheets together and fixing them by folding. Folding filter cartridge technology can improve the performance of battery in energy density, cycle life, safety and other aspects.

2. Requirements of lithium ion battery industry for folding filter cartridge technology

2.1 folding uniformity

• the positive and negative electrodes of the battery need to be kept uniform during the folding process, and the laminated layer cannot be too thick or too thin to ensure the uniformity and stability of the electrode.

2.2 folding tightness

• technical requirements for folding filter cartridgeAfter folding, the positive and negative poles of the battery are closely combined to ensure that there will be no air gap or gap inside the battery and improve the energy transmission efficiency of the battery.

2.3 folding direction

• the correct folding direction can ensure the correct connection of the positive and negative poles of the battery, avoid problems such as polarity reversal, and improve the safety and stability of the battery.

2.4 selection of folding materials

• folding filter cartridge technology needs to select suitable materials, which should not only have good electrical conductivity and mechanical properties, but also be able to resist high temperature and corrosion, so as to ensure the long-term stable operation of the battery.

3. The role of folding filter cartridge technology in battery production

3.1 increase battery energy density

• through folding filter cartridge technology, the laminated density of positive and negative electrodes of the battery can be effectively improved, the energy density of the battery can be increased, and the energy storage efficiency of the battery can be improved.

3.2 enhance battery cycle life

• folding filter cartridge technology can ensure the close connection between the positive and negative poles of the battery, reduce the resistance between the poles and prolong the cycle life of the battery.

  3.3 improve battery safety

  • correct folding filter cartridge technology can avoid problems such as short circuit and polarity reversal inside the battery, improve the safety of the battery and reduce the risk of accidents.

  4. Development trend of folding filter cartridge technology

  • along lithium Ion battery industry with the continuous development and technological progress, the folding filter cartridge technology is also continuously optimizing and improving. In the future, with the development of material science and technology, folding filter cartridge technology will be more precise and automated, further improving the performance and stability of the battery.