Abstract

This paper reports an electrochemically highly reversible Si–Ni alloy based electrode through the microstructure and composition analysis using XRD and HR-TEM combined with EDS. Nano-Si (∼200nm) embedded in the inactive NiSi2/NiSi matrix synthesized using industrial-scale rapid solidification process (RSP). In addition, comprehensive analysis of HR-TEM images, dQ/dV and OCV plots provides powerful insights into the cycle life degradation of Si-alloys caused by the material state change upon cycling.

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