Well-dispersed LiFe1/3Mn1/3Co1/3PO4 nanoparticles with dimensions of ca. 90-180 nm are synthesized by a solvothermal technique using water-ethylene glycol mixture as reaction media. The as-prepared LiFe1/3Mn1/3Co1/3PO4 nanoparticles are well crystallized in the orthorhombic olivine structure and exist in the form of a single-phase solid solution. In LiFe1/3Mn1/3Co1/3PO4 solid solution, the Fe3+/Fe2+ and Co3+/Co2+ redox couples exhibit superior electrochemical activity and reversibility compared to the Mn3+/Mn2+ redox couple. Benefiting from the integrated carbon coating and contiguous carbon network, the LiFe1/3Mn1/3Co1/3PO4/C composite delivers a high discharge capacity of 165 mA h g(-1) at 0.05C, 148 mA h g(-1) at 0.5C, and 120 mA h g(-1) at 5C. Meanwhile, it shows considerable cycling stability after 100 cycles at both 25 degrees C (80% capacity retention at 0.1C) and 50 degrees C (79% capacity retention at 1C).

Well-dispersed LiFe1/3Mn1/3Co1/3PO4 nanoparticles with dimensions of ca. 90–180 nm are synthesized by a solvothermal technique using water–ethylene glycol mixture as reaction media. The as-prepared LiFe1/3Mn1/3Co1/3PO4 nanoparticles are well crystallized in the orthorhombic olivine structure and exist in the form of a single-phase solid solution. In LiFe1/3Mn1/3Co1/3PO4 solid solution, the Fe /Feand Co/ Co redox couples exhibit superior electrochemical activity and reversibility compared to the Mn/ Mn redox couple. Benefiting from the integrated carbon coating and contiguous carbon network, the LiFe1/3Mn1/3Co1/3PO4/C composite delivers a high discharge capacity of 165 mA h g 1 at 0.05C, 148 mA h g 1 at 0.5C, and 120 mA h g 1 at 5C. Meanwhile, it shows considerable cycling stability after 100 cycles at both 25 C (80% capacity retention at 0.1C) and 50 C (79% capacity retention at 1C).

Monodisperse LiMn1/3Fe1/3Co1/3PO4 nanoparticles are synthesized by a solvothermal method, exhibiting outstanding rate capability and cycling stability.

Well-dispersed LiFePO4 nanorods in diameter of ca. 70nm and length of 90–150nm are prepared via a solvothermal method in the water-ethylene glycol (1:15, v/v) mixture. The microstructure and crystal orientation are characterized by high-resolution transmission electron microscopy and X-ray diffraction. The effects of carbon content on the electrochemical performances of LiFePO4 nanorods are investigated. Benefiting from the oriented nanorods and the optimized conductive carbon network, the LiFePO4/C composites exhibit remarkable cycling stability and high rate capacity. The LiFePO4/C including 9wt% carbon delivers a large discharge capacity of 120mAhg−1 at 10C rate with the capacity retention of 83% after 2000 cycles. Furthermore, the capacity retention of LiFePO4/C with 6wt% carbon is up to 96% after 150 cycles at elevated temperature (50°C) at 1C rate.

Well-crystallized Li2NiTiO4 nanoparticles are rapidly synthesized by a molten salt method using a mixture of NaCl and KCl salts. X-ray diffraction pattern and scanning electron microscopic image show that Li2NiTiO4 has a cubic rock salt structure with an average particle size of ca. 50 nm. Conductive carbon-coated Li2NiTiO4 is obtained by a facile ball milling method. As a novel 4 V positive cathode material for Li-ion batteries, the Li2NiTiO4/C delivers high discharge capacities of 115 mAh g-1 at room temperature and 138 mAh g-1 and 50°C, along with a superior cyclability.