Lithium-ion batteries (LIBs) are considered as one of the most promising electrical storage devices for large-scale applications. In order to achieve a long lifespan and high performance for LIBs, however,...
Spinifex grass derived hard carbon is used as anodes for sodium-ion batteries. Extraordinary stability and capacity retention of ∼300 mA h g−1 on prolonged cycling against sodium was observed. The eco-friendly and low-cost synthesis procedure make the biomass derived carbon material promising for energy storage applications.