LiFexMn1−xPO4: A cathode for lithium-ion batteries

High-rate and long-term cycling capabilities of LiFe0.4Mn0.6PO4/C composite for lithium-ion batteries

“…Among those, LiFePO 4 has been successfully improved via various approaches, and the specific capacity and rate capability of LiFePO 4 materials are improved remarkably [4][5][6][7]. However, the energy density is relatively low for its lower working potential at about 3.4 V vs. Li/Li + [8]. The outstanding performance of the LiFePO 4 attracts much attention to the manganese member of the family, LiMnPO 4 .…”

“…For instance, Aurbach et al [24] reported a LiFe 0.2 Mn 0.8 PO 4 /C composite as cathode material with a capacity of around 100 mAh g −1 at 10 C. LiFe 0.5 Mn 0.5 PO 4 nanoplates were synthesized by a simple solvothermal route, and the LiFe 0.5 Mn 0.5 PO 4 /C nanoplates exhibited a reversible capacities of 153, 121, 91, 60, and 31 mAh g −1 at 0.02, 0.1, 5, 10, and 18 C, respectively [10]. Furthermore, some methods have been developed for the synthesis of LiFe x Mn 1-x PO 4 , including solid-state process, ultrasonic pyrolysis, sol-gel process, mechanical activation, the solvothermal technique, coprecipitation [8,10,19,[24][25][26]. However, many reported methods require expensive raw material, long annealing times, or several grinding steps.…”

Enhanced electrochemical properties of LiFe1−xMnxPO4/C composites synthesized from FePO4·2H2O nanocrystallites

“…Inspired by the success of LiFePO 4 , researchers have tried similar methods to improve the electrochemical properties of LiMnPO 4 [16e21]. It has been reported that an improvement in kinetics was realized as partial Mn ions were substituted by Fe to form LiFe 1-Àx Mn x PO 4 , such as LiFe 0.2 Mn 0.8 PO 4 [13,20]. The Fe substitution in Mn-sites probably has two main benefits: one is enhancing the transport properties of materials; the other is decreasing the JahneTeller effect of Mn 3þ .…”

LiMnPO<SUB>4</SUB>: Review on Synthesis and Electrochemical Properties

“…Hong et al [16] reported Fe substituted olivine phase, LiMn 1-x Fe x PO 4 (x = 0, 0.05, 0.1, 0.15. and 0.2) prepared with an appropriate amount of citric acid as the carbon source and subsequently employed planetary ball milling for about 3.5 days before the heat treatment. All the prepared showed similar diffraction patterns, except for a slight shift towards higher angles with increasing concentration of Fe ions and the unit cell shrank continuously as iron was introduced into the system.…”