| abstract |
The invention provides a lithium ion battery separator material for new energy vehicles and a preparation method thereof, belonging to the technical field of lithium ion batteries, and is prepared from the following raw materials: inorganic nanoparticles, modified PET resin, and ethyl orthosilicate; The modified PET fiber has the following formula I Structure shown; where n=200‑500. The diaphragm material prepared by the invention not only has excellent high temperature resistance, but also has good mechanical properties, high ionic conductivity, good cycle performance, good wetting performance, and at the same time shows excellent liquid absorption rate. Lithium-ion batteries have broad application prospects. |