A modified starch binder for silicon anodes in rechargeable Li-ion batteries

Abstract

A modified starch composite is investigated as a potential eco-friendly, natural binder for Silicon anodes in Li-ion batteries. This water soluble binder overcomes health and environmental risks associated with the processing of conventional PVDF binder solution used in electrode preparation. The abundant hydroxyl groups present in the starch polymer facilitate improved binding characteristics with active material in the electrode, resulting in enhanced mechanical and structural stability of the electrode during electrochemical cycling. Silicon anodes with this starch composite binder exhibited improved cycling performance, therefore, can be recognized as a potential binder for sustainable Silicon anodes in next generation Li-ion batteries