▎ 摘　　要

NOVELTY - Safety fluid comprises 2-50 wt.% foaming agent, 2-50 wt.% conductive agent, 5-70 wt.% binder and 10-80 wt.% solvent. USE - Safety fluid used for forming safety coating in preparation of electrode sheets for lithium-ion batteries (claimed). ADVANTAGE - The materials with safety coatings includes safety coatings from safety liquids, which can be used in the preparation of positive or negative plates for lithium-ion batteries, greatly improving the safety performance of lithium-ion batteries. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for following: (1) a method for preparing a safety liquid for forming a safety coating, which involves proportioning raw material according to the formula composition of the safety liquid;mixing the binder, the additives and the solvent to obtain a glue, and then uniformly mixing glue with the ground foaming agent and the conductive agent, where particle size of the foaming agent and the conductive agent after grinding are both 0.1-2 mm; and (2) a material with a safety coating, which comprises a conductive substrate and a safety coating on the conductive substrate, and the safety coating is prepared and formed from the safety liquid, and conductive substrate is selected from one of copper foil and aluminum foil, where thickness of the copper foil is 2-20 mu m, the thickness of the aluminum foil is 3-30 mu m, and the thickness of the safety coating is 0.3-10 mu m.