Controlled shape with enhanced electrochemical performance of various ions doped Li2MnSiO4 cathode nanoparticles

• Presenting an enhanced charge/discharge capacity of Li2MnSiO4 nanoparticles by adding various dopants, especially Ga3+ ion.
• Evaluating the improved electrochemical performance in conjunction with the nanoparticle formation via microstructure analysis.
• The way for searching a novel high capacity cathode material suitable for the up-coming lithium ion batteries and next generation energy storage devices.

Li2MnSiO4 cathode materials doped with various cationic ions, Ga3+, Al3+, and Mg2+, are synthesized and their microstructure and electrochemical properties are investigated. The samples doped with trivalent ions, especially Ga3+, lead to a higher charge/discharge capacity and initial efficiency with well-dispersed nanoparticle formation. We can realize that the enhanced electrochemical performance of the specific ion doped Li2MnSiO4 cathodes originated from the uniformly distributed nanoparticles rather than the additional lithium insertion/extraction of the given cathode materials induced by the charge compensation.

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