Anti-flaming ceramic modified size and lithium ion battery membrane coated with same

The invention discloses anti-flaming ceramic modified size and a lithium ion battery membrane coated with same. A preparation method of the anti-flaming ceramic modified size comprises the following steps: carrying out surface pretreatment on inorganic particles and a flame retardant by utilizing a silane coupling agent, thus forming anti-flaming ceramic modified powder; then uniformly stirring in a solvent, and carrying out ball milling; sequentially adding a binding agent and a thickening agent, and stirring at high speed, thus forming the anti-flaming ceramic modified size. The lithium ion battery membrane is formed by coating a polyolefin microporous membrane, which is subjected to low-temperature plasma surface modification treatment, with the anti-flaming ceramic modified size. According to the anti-flaming ceramic modified size disclosed by the invention, the problems that a ceramic coating layer is easy to fall off from a membrane and the coating thickness or the surface density is non-uniform are eff