| abstract |
The invention provides an aqueous zinc ion battery composite separator and a preparation method. The zinc ion battery composite separator comprises a separator base layer and a modified layer obtained by coating the surface of the separator base layer with ceramic slurry. The components include: 50-85wt% ceramic powder, 5-20wt% binder, 5-20wt% conductive agent and 5-10wt% additive, the sum of the mass of each component is 100wt%, and the ceramic powder is zirconia Powder or/and alumina powder, the alumina powder includes at least one of α-alumina, β-alumina and γ-alumina. |