Project Background

A lithium diaphragm company is committed to lithium-ion battery wet diaphragm research and development, production and sales in one of the science and technology-oriented enterprises, the company The company has introduced a fully imported synchronous stretching production line with the highest level of hardware in China so far, giving full play to the synchronous stretching film manufacturing technology and experience accumulated over the years, and realizing the production process by optimizing the material formula. On the basis of the manufacturing technology and experience accumulated for many years, the company optimizes the material formula, realizes the precise control of the production process, and produces synchronous bi-directional stretching wet separator film with good consistency, high tensile strength, and high efficiency. The film has the advantages of good consistency, high tensile strength, high mechanical strength, uniform pore size, high porosity and high temperature stability.

Diaphragm is the lithium battery materials in the highest technical barriers in the link, the main role is to make the battery positive and negative poles separated, to prevent contact between the two poles and short circuit. and short circuit. Its performance is crucial to the lightweight and safety of lithium batteries, directly affecting the battery internal resistance, cycle life, battery capacity and other properties, is the most important factor in the development of lithium-ion batteries. capacity and other properties, is an important part of the lithium-ion battery.

Pulp is an important part of the anode of lithium-ion battery, which is made of special solvent and adhesive mixed with powdered anode and cathode respectively. The active substance is mixed evenly and blended to make pulp-type anode material. The pulp material comprises pulp and auxiliary materials, and the pulp material made from said diaphragm paper for lithium ion batteries can substantially reduce defects such as pulp clusters and air bubble holes, improve the tube making performance of the diaphragm paper in the production of lithium ion batteries discharge performance and the stability of the diaphragm paper products; the process of applying the pulp for the production of diaphragm paper is not only characterized by high production efficiency, but also by low environmental pollution.

 

Process introduction

For the pulp production line in this project, we design a program that consists of Siemens 1200 PLC control cabinet, Siemens distributed I0 control cabinet, touch screen, WINCC control panel, and a WINCC control panel. cabinet, touch screen and WINCC upper system. Through RS485 communication to 35 sets of inverter motor polling, with valves, pressure, temperature, weighing module, etc., real-time, effective and accurate control according to process requirements.