Fig. 5: Electrochemical performances of the Li||NCM811 and Li||LiFePO4 cells.
From: High-voltage and intrinsically safe electrolytes for Li metal batteries
a–c Cycle performance of Li||NCM811 cells under different test conditions. d–f Fabrication of Li‖NCM811 pouch cell with VSE electrolyte and its practical test. d Optical image. e The discharge curve of the Li‖NCM811 pouch cell. The inset in (e) is the optical image of the pouch cell’s weight. f Cycle performance of Li||NCM811 pouch cells using STD and VSE electrolyte. g–i Electrochemical performance of Li||LiFePO4 cells using different electrolytes at 90 °C. g Initial Columbic efficiencies at 0.5 C. h Cycle performance. i Rate performance. All the related cells would be activated by a small current (0.1 C) in the initial two cycles. The areal mass loadings of cathodes for coin cells and pouch cells are 6–7 and ~28 mg cm−2, respectively.
