The isolation film in the positive and negative plates is a microporous and porous film, mainly made of PP and PE. It is mainly used to isolate the positive and negative plates, prevent the circuit, allow ions to pass through, and maintain the function of electrolyte. Non separator is a kind of high value-added material with the highest technical barrier in lithium battery materials, with a gross profit rate of more than 40%, accounting for 20-30% of the cost of lithium battery, There are not many domestic enterprises that can produce diaphragm, most of them rely on imports. Diaphragm has typical characteristics of "high technology and high capital". Moreover, the project cycle is very long, and the investment risk is high. The investment enthusiasm of domestic enterprises is not high ? ? to ensure the customer's requirements for quality, price and delivery time, please contact us to know more about the requirements of diaphragm and stainless steel tank, Including technical consulting services, we will serve you wholeheartedly.