Enhanced energy density and electrochemical performance of all-solid-state lithium batteries through microstructural distribution of solid electrolyte

摘要: Abstract Maximizing the proportion of active material in composite cathode is a technical challenge for All-Solid-State Lithium ion battery. Among viable solutions, employing powder with minimized and uniform size distribution might be most effective practical solution. To address this issue, we carefully control high ionic conducting Li 2 S-P S 5 solid electrolyte to smaller narrower than standard electrolyte. We show milled electrolytes have significantly higher capacity one cathode. Electrochemical impedance spectroscopy suggests that both material-solid interfacial resistance pathway through are important. Moreover, at ratios, pathways becomes limiting factor discharge rates. A preliminary model suggested guide future development microstructure all-solid-state batteries.