A novel controllable ice-templating strategy is utilized to tailor low-cost cellulose nanocrystal/polyethylene oxide-derived, vertically aligned carbon aerogels (VCAs) as anodes of sodium- and potassium-ion batteries. The construction of hierarchically tailored channels is tuned for shortening ion-transport pathways and ensuring structural integrity. These sustainable VCAs can be easily extended to multiple energy storage systems, demonstrating their universal potential.
https://onlinelibrary.wiley.com/doi/10.1002/adfm.202110862
