Electrochemical Performances of Li2MnSiO4 Cathodes Synthesized by Mechanical Alloying Process
We report the fabrication and electrochemical properties of Li2MnSiO4 powders produced by various solid-state reactions, such as ball-, attrition-, and bead-milling. Li2MnSiO4 powders prepared by bead-milling had the smallest particle sizes
(∼100 nm) and the largest amount of surface carbon (∼20 wt%), which were produced by adding sucrose during milling process. The surface carbon layer can improve electronic/ionic conductivity of Li2MnSiO4 as cathode material for lithium ion battery. As expected,
the bead-milled Li2MnSiO4 powder electrode showed the best electrochemical performance of the electrode materials obtained by the various solid-state reactions. This is attributed to the small particle size and facile electronic transport through the conductive carbon
layer on each Li2MnSiO4 particle.
Document Type: Research Article
Publication date: 01 March 2015
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