TiO2 shielded Si nano-composite anode for high energy Li-ion batteries: The morphological and structural study of electrodes after charge-discharge process

By Raj, Hari; Singh, Siddharth; Sil, Anjan
Published in Electrochimica Acta 2019

Abstract

Many efforts are being done to commercialize silicon (Si) as a high energy application anode for Li-ion batteries. However, still improvements are required at various levels from structural modification to fabrication process for commercializing Si as single anode material. In the present study, we report high improvement in the electrochemical performance of Si by shielding its surface with nano TiO2 particles. A layer of TiO2 nano particles is deposited on the surface of carbon coated nano Si by hydrothermal process to prevent the volume expansion during charge-discharge process. The sample is designated as Si/C

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