The development of high-energy-density lithium-ion batteries (LIBs) is essential for the advancement of electric vehicles and portable electronics. Silicon-rich anodes, with their exceptional theoretical capacity, hold promise for revolutionizing energy storage. However, challenges such as volumetric expansion during cycling hinder their practical use. Ionically conductive binders have been shown to enhance the mechanical stability and cyclability of silicon-based electrodes. Herein, water-soluble binders for silicon anodes were prepared by functionalization of poly(ethylene-