Water-based ceramic slurry as well as preparation method and application thereof

The invention provides water-based ceramic slurry as well as a preparation method and application thereof. The water-based ceramic slurry is prepared from the following raw materials by taking the total mass of the water-based ceramic slurry as 100%: 25-35% of ceramic particles, 0.2-2% of bentonite, 1-10% of sodium carboxymethyl cellulose, 1-5% of a dispersing agent, 1-5% of an active agent and 45-60% of water. The aqueous ceramic slurry provided by the invention has good affinity with a base membrane, and the prepared diaphragm not only has good infiltration performance and relatively high liquid absorption rate for electrolyte, but also has good thermal stability and relatively low interface resistance. 本发明提供一种水性陶瓷浆料及其制备方法和应用。以所述水性陶瓷浆料的总质量为100％计，所述水性陶瓷浆料包括以下原料：陶瓷颗粒25-35％、膨润土0.2-2％、羧甲基纤维素钠1-10％、分散剂1-5％、活性剂1-5％、水45-60％。本发明提供的水性陶瓷浆料与基膜之间具有良好的亲和性，并且制备得到的隔膜不仅对电解液具有良好的浸润性能和较高的吸液率，同时具有良好的热稳定性以及较低的界面电阻。