Fig. 4: Electrochemical performance of NCM811. | Nature Communications

Fig. 4: Electrochemical performance of NCM811.

From: Noninvasive rejuvenation strategy of nickel-rich layered positive electrode for Li-ion battery through magneto-electrochemical synergistic activation

Fig. 4: Electrochemical performance of NCM811.

a, b CV curves of the 0.32 T and 0 T MEA graphite | |NCM811 full battery at 0.1 mV/s over the potential range of 3.0–4.3 V. c Lithium-ion diffusion coefficient (DLi+) at the first cycle (charge and discharge) after the initial activation in the graphite||NCM811 full battery. d Cycling performance of graphite||NCM811 full batteries activated in different magnetic fields (0, 0.08, 0.16, 0.32, 0.64 T). 1 C = 200 mA g−1, and the mass loading of the positive electrode material is 14–15 mg cm−2. e The initial activation curves corresponding to (d). f The cycle performance at 0.5 C of the 2.0 Ah graphite||NCM811 pouch cell with the 0.32 T MEA in the first cycle. g The upcycling performance of the spent commercial SiC||NCM811 pouch cell at 1 C between 3.0 and 4.2 V. h dQ/dV curves corresponding to the spent-NCM (S-NCM) and regenerated-NCM (R-NCM).

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