3D dual-gradient lithiophilic AgNWs@ZnO modified separator for boosting stable lithium metal batteries

Abstract

A three-dimensional zinc oxide coated silver nanowire (AgNWs@ZnO) network structure with dual-gradient lithiophilicity and conductivity has been designed to modify a commercial polypropylene (PP) separator for guiding uniform lithium deposition and further protecting lithium metal anodes. An Li‖LFP full cell with an AgNWs@ZnO/PP modified separator can stably cycle for 600 cycles at 1C and maintain a 95% capacity retention rate.