Hydrothermal synthesis of the Li2MnSiO4/C nanocomposite as a cathode material for lithium-ion batteries

The Li 2 MnSiO 4 /C nanocomposite is successfully synthesized by hydrothermal reaction at 150   °C for 48   h and then annealed at 650   °C in the presence of citric acid. Interestingly, the hydrothermal synthesized Li 2 MnSiO 4 shows a shuttle-like shape, which is composed of primary particles with average size of 50–100   nm. After carbon coating, these nanoparticles are separated from the secondary particles, and the thickness of carbon layer is about 2–4   nm. The Li 2 MnSiO 4 /C nanocomposite delivers an improved high electronic conductivity and an enhanced electrochemical behavior.