Comparing the Electrochemical Performance of LiFePO_𝟒/C Modified by Mg Doping and MgO Coating

Figure 7

Cyclic voltammetry of LiFePO₄/C (a) and magnesium modified LiFePO₄/C (b), (c) in the voltage range of 2.4–4.2 V at scan rates of 0.25, 0.5, 0.75, and 1 mV s⁻¹; (d) the relationship of peak current (𝑖_𝑝) and the square root of scan rate (𝑣^1/2).

(a)

(b)

(c)

(d)