Abstract :
[en] Energy storage and conversion systems are regarded as the most important technologies offering sustainable alternatives to address the immense and continuous increase in electrical energy consumption in world (1-3). Batteries are one of the most determining energy storage devices thanks to their wide range of possible applications such as portable devices, electric vehicles, grid storage, etc. The electrodes are the main and determinant units participating in the electrochemical reactions in a battery upon cycling. The performance of electrode materials in Li-ion, Na-ion and K-ion batteries depend not only on their chemical composition but also on their microstructure.
Polyanionic compounds based cathode materials appear to constitute first-rank candidates for green and sustainable electrode materials for secondary batteries. Here, one-step synthesis route using spray is used to produce highly homogeneous, crystalline and impurity-free phosphate-carbon composite electrode materials for Li-ion, Na-ion and K-ion batteries. The electrochemical performance of electrode materials has been enhanced by the addition of the carbon sources/allotropes during the material preparation (3-7).
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