Synthesis and Characterization of Li[sub 2]Mn[sub x]Fe[sub 1−x]SiO[sub 4] as a Cathode Material for Lithium-Ion Batteries

The synthesis, structure, and performance of carbon-containing Li 2 Mn x Fe 1 − x SiO 4 were studied in this work. A synthesis route has been developed for Li 2 Mn x Fe 1 − x SiO 4 materials, i.e., the carbon-containing Li 2 Mn x Fe 1 − x SiO 4 was synthesized by a solution route. The results of X-ray diffraction show that Li 2 Mn x Fe 1 − x SiO 4 solid solutions can be achieved in a wide compositional range. A capacity of 214 mAh ∕ g and energy density of 593 Wh ∕ kg has been achieved for the Li 2 Mn x Fe 1 − x SiO 4 ( x = 0.5 ) sample.