Li(MnxFe1−x)PO4/C (x = 0.5, 0.75 and 1) nanoplates for lithium storage application

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

“…33-0803), as shown in Fig. 1 [10]. No featured peaks of other possible impurities such as Li 3 PO 4 , Mn 2 P 2 O 7 , and Fe 2 P are observed.…”

“…However, LiMnPO 4 suffers from poor electronic conductivity, Jahn-Teller distortion of the Mn 3+ ion, and huge volumetric change between LiMnPO 4 and MnPO 4 during intercalation/de-intercalation (ca. 10 %), which limit their applications in high power batteries [10]. Similar to LiFePO 4 , many efforts have been investigated to overcome these obstacles of the LiMnPO 4 by minimizing the particle size [11][12][13][14], applying conductive surface coatings [15][16][17][18], doping with metal ions [9,[19][20][21][22], and so on.…”

“…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.…”

Positive Effect of Minor Manganese Doping on the Electrochemical Performance of LiFePO4/C under Extreme Conditions

“…The surface coating strategies [9][10][11][12] remarkably increase the electronic conductivity of LiFePO 4 particles as well as inhibit particle growth to decrease particle size for shortening the Li + transfer distance. Meanwhile, the doping approaches which introduce dopants to the host materials are intensively applied [13][14][15][16][17] to directly modify the parameters of crystal lattice for tuning the Li + transfer channels and the diffusion coefficient. Combining above two strategies may efficiently achieve evident improvement for the LiFePO 4 cathode.…”

Enhanced kinetic behaviors of LiMn0.5Fe0.5PO4/C cathode material by Fe substitution and carbon coating

“…Numerous attempts have been made to improve the electrochemical performance of LiMnPO 4 , including reducing crystal size to nanoscale [10][11][12], coating conductive agent such as carbon [12,13] and doping cation such as Fe 2+ , Mg 2+ , Ti 2+ , Ca 2+ , Zr 4+ , or Cu 2+ [14][15][16][17][18][19][20][21][22][23][24][25][26]. These approaches could effectively improve the electrons conductivities and Li + ions transport properties of LiMnPO 4 and thus enhance its electrochemical performances.…”