Interfacial modulation of nano Li7La3Zr2O12 composite electrolytes prepared by solvent-free method

Abstract

Solid-state batteries (SSBs) with high safety are promising for the energy fields, but the development has long been limited by machinability and interfacial problems. Hence, supporting, Nano LLZO CSEs are prepared with a at . The contents of Nano LLZO particles enable the Nano LLZO CSEs to maintain good while exhibiting a wide electrochemical window of and a . The mean modulus reaches 4376 MPa. Benefiting from the , the Li|Li symmetric batteries based on the Nano LLZO CSEs show benign at the current densities of , , and . In addition, the Li|LiFePO (LFP) SSBs achieve favorable he specific capacity reaches at rate, with a capacity retention of about . In the further tests of the LiNiCoMnO (NCM811) cathodes with higher energy density, the Nano LLZO CSEs also demonstrate good compatibility: the specific capacities of NCM811-based SSBs reach at rate, while the capacity retention is over . Furthermore, the verify the and the potential for application, which have a desirable prospect.