Sieving carbons promise practical anodes with extensible low-potential plateaus for sodium batteries

Non-graphitic carbons are promising anode candidates for sodium-ion batteries, while their variable and complicated microstructure severely limits the rational design of high-energy carbon anodes that could accelerate the commercialization of sodium-ion batteries, as is the case for graphite in lithium-ion batteries. Here, we propose sieving carbons, featuring highly tunable nanopores with tightened pore entrances, as high-energy anodes with extensible and reversible low-potential plateaus (-1. More excitingly, this approach to preparing sieving carbons has the potential to be scalable for modifying different commercial porous carbons.