Phys.org December 22, 2024 An international team of researchers (Canada, USA – University of Maryland, Oak Ridge National Laboratory) reported a superionic conducting, lithium-compatible and air-stable vacancy-rich β-Li3N SSE. It showed high ionic conductivity and surpassed almost all the nitride-based SSEs, had good air stability. They demonstrated their stable cycling performance with high-capacity retentions over 5,000 cycles. The lithium metal batteries successfully accomplished mild rapid charge and discharge rates up to 5.0 C, retaining 60.47% of the capacity… read more. Open Access TECHNICAL ARTICLE
Tag Archives: Solid state electrolytes
Flexible solid electrolytes for all-solid-state lithium batteries
Phys.org October 3, 2022 The thick electrolyte layer and rigid nature as well as poor interfacial contact of doped garnet-type solid electrolytes are obstacles for its application in all-solid-state lithium batteries. Through solvent-free procedure researchers in China developed an ultrathin flexible Li6.4La3Zr1.4Ta0.6O12- (LLZTO-) based solid electrolyte with 90 wt% LLZTO. The resulting film exhibited ultrahigh ionic conductance of 41.21 mS at 30°C, excellent oxidation stability of 4.6 V, superior thermal stability and nonflammability. The assembled Li||LiFePO4 pouch cell with integrated electrolyte/cathode interface exhibited excellent rate performances and cycle performances with a capacity retention of 71.4% from 153 mAh g-1 to 109.2 mAh g-1 at 0.1 C […]