Controlled synthesis of nanocrystalline Li2MnSiO4 particles for high capacity cathode application in lithium-ion batteries

Monodispersed Li2MnSiO4 nanoparticles are synthesized via a supercritical solvothermal method at 300 °C for 5 min reaction time. The as-synthesized nanoparticles are free from impurities and have 15–20 nm diameter. After coating with conductive polymer, a discharge capacity of 313 mA h g−1 is obtained for the first time because of nearly 2Li+ reaction.