Efficient Preparation of Li₂FeSiO₄/C with High Purity and Excellent Electrochemical Performance in Li-Ion Batteries.

ABSTRACT: One method to enhance the electrochemical performance of carbon-coated Li₂FeSiO₄ cathode material in lithium-ion batteries is to produce an ideal Li₂FeSiO₄ precursor with minimal impurities. A novel precursor for Li₂FeSiO₄ (Li₂O·FeCO₃·CH₃OSiO₂H) was synthesized through a methanol solvothermal reaction under stringent conditions (180 °C and 2.7 MPa), achieving a purity level of 93.2%. During synthesis, the new Li₂FeSiO₄ precursor exhibits unique self-purification properties and maintains a fine morphology after annealing. The resulting carbon-coated Li₂FeSiO₄ composites demonstrate a Brunauer-Emmett-Teller specific surface area of 102.4 m<

SUBMITTER: Cui J 

PROVIDER: S-EPMC11858047 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature