Anomalous High Ionic Conductivity of Nanoporous β-Li3PS4

• DOI: 10.1021/ja3110895
• Publication Date: 2013-01-10T20:19:30Z
• Authors: Zengcai Liu; Wujun Fu; E. Andrew Payzant; Xiang Yu; Zili Wu; Nancy J. Dudney; Jim Kiggans; Kunlun Hong; Adam J. Rondinone; Chengdu Liang
• Keywords: Nanoporous; Electrochemical window; Fast ion conductor

Lithium-ion-conducting solid electrolytes hold promise for enabling high-energy battery chemistries and circumventing safety issues of conventional lithium batteries. Achieving the combination high ionic conductivity a broad electrochemical window in is grand challenge synthesis materials. Herein we show an enhancement room-temperature lithium-ion by 3 orders magnitude through creation nanostructured Li(3)PS(4). This material has wide (5 V) superior chemical stability against metal. The nanoporous structure Li(3)PS(4) reconciles two vital effects that enhance conductivity: (1) reduction dimensions to nanometer-sized framework stabilizes high-conduction β phase occurs at elevated temperatures, (2) surface-to-bulk ratio β-Li(3)PS(4) promotes surface conduction. Manipulating far-reaching implications materials design range applications, including batteries, fuel cells, sensors, photovoltaic systems, so forth.