Production method of lithium ion battery separator paper
A technology of lithium-ion batteries and production methods, which is applied in pulp beating methods, battery components, paper, etc., can solve problems such as poor electrolyte affinity, battery fire, and poor dimensional stability, and achieve improved mechanical properties and durability. Effects of thermal performance, increased safety, thermal stability and improved wetting properties
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[0013] The present invention will be further described below in conjunction with specific embodiments.
[0014] Reference figure 1 , It includes the following steps:
[0015] 1. Raw material preparation: wood pulp is made of softwood bleached wood pulp, and wood pulp fibers with a length of about 3 to 5 mm are processed by a beating process with a disc mill and beating machine. The beating degree is preferably about 50 to 60°SR. The addition of wood pulp is beneficial The paper machine performance needs. The dissolving pulp with a content of α-cellulose above 90% is processed by a beating process with a disc mill and beating machine. The beating degree is preferably 50-60°SR. Its addition is convenient for drawing paper and can improve the oxidation resistance of the diaphragm. The nano-cellulose denier is about 0.1dtex~0.3dtex.
[0016] 2. Respectively mix wood pulp, dissolving pulp, and nanocellulose according to the mass ratio of 1:1:3, and send the uniformly mixed slurry into...
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