Biomass-Derived Hard Carbon Anodes Processed with Deep Eutectic Solvents for High-Performance Sodium-Ion Batteries

and good rate performance. Other biomass resources, such as bamboo, coconut, and pine, highlight the versatility of the proposed reciprocal biomass processing method for synthesizing high-performance hard carbon anodes. This study presents a universal and green method to process biomass resources for synthesizing high-performance hard carbon anode materials.