Synthesis and electrochemical properties of Li-rich spinel type LiMn2O4 powders by spray pyrolysis using aqueous solution of manganese carbonate

Electrochemical performance of rare-earth doped LiMn2O4 spinel cathode materials for Li-ion rechargeable battery

“…Similar results were also observed in La-doping [25], Ce-doping [26], Nd-doping [27] and Sm-doping [22] LiMn 2 O 4 . Figure 2 shows the first charge-discharge curves and cycle performance of LiMn 2−x RE x O 4 measured at 0.5C rate, and the results are summarized in Table 2.…”

Application of quaternized activated carbon derived from Macadamia nutshells for the removal of hexavalent chromium from aqueous solutions

“…52 The spray pyrolysis synthesis method was also applied successfully to make manganese spinel cathode material. 53 A big advantage of the technique was that a small particle size could be achieved when the final dried solid LiMn 2 O 4 powder, made from the spray technique, obtained particles that ranged between 75 and 1250 nm. 54 Taniguchi et al 47 also studied the synthesis of LiMn 2 O 4 by the spray pyrolysis and drying system.…”

Synthesis of LiNi0.5Mn1.5O4 by solid-state reaction with improved electrochemical performance

“…The new spinel cathode material LiNi 0.5 Mn 1.5 O 4 exhibits a high potential of about 4.7 V (versus Li) with a theoretical capacity of 146.7 mAh g −1 [5][6][7][8]. Its cycling performance is better than that of LiMn 2 O 4 which contains half of its manganese ions in the form of Mn 3+ that is mainly responsible for the capacity fading [9][10][11][12]. LiNi 0.5 Mn 1.5 O 4 also shows a non-negligible capacity fading because LiNi 0.5 Mn 1.5 O 4 synthesized at high temperatures often contains an impurity phase of Li x Ni 1−x O 2 (x ≈ 0.2) or NiO [13,14].…”