(738g) Design of All-Solid-State Lithium-Ion Battery Based on Particle Coating Technology
We here propose to use a dry coating process to produce composite particle of electrode active material and solid electrolytes. In the dry coating process, lager electrode active material (core particles) were directly coated with SEs (guest particles) by mechanical forces without using any solvents and binders. As a result, FESEM and EDX images showed that the active material were almost fully covered with SEs without breakage of the active material, indicating that the solid-solid interfacial contacts between active material and SEs were constructed within a primary composite particle. A performance of ASS-LIB-test-cell exhibited remarkable improvement when the dry coated particles were used. It was concluded that the dry coating process is very effective to produce composite particle for electrode of ASS-LIBs.