fig4

Figure 4. (A) Voltage-time profiles of Li-30 min and pure Li symmetrical cells. (B) Long cycling voltage-time profiles at 1 mA cm^-2. (C) Charge-discharge profiles of Li-30 min full cell with 1 mg of NCM811. (D) Rate and cycling performance of Li-30 min and pure Li with 1 mg of NCM811. (E) Rate and (F) cycling performance of Li-30 min and pure Li with 1.5 mg of NCM811. All tests were performed at -20 °C.