Table 1. MPE Values (g mol^–1) at Different Discharge Stages As Obtained from the Slope of Mass–Charge Curves.

	voltage (V)
	3.0–1.5	1.5–1.0	1.0–0.75	0.75–0.5
(1) LP50	3.8	25.9	47.5	44.9
(2) Ni 800 ppm	38.5	63.7	67.6	90.6
(3) Mn 100 ppm	56.1	94.5	46.4	14.4
(4) Co 100 ppm	94.4	76.4	84.4	52.4
(5) NiMnCo 8/1/1	66.8	108.3	85.3	92.7