Transforming biomass waste sauce-flavor liquor lees into porous carbons for high-performance aqueous zinc-ion hybrid capacitors

The biomass sauce-flavor liquor lees-derived carbon cathodes are specially designed for aqueous zinc-ion hybrid supercapacitors. And which achieved a high specific capacity (221.1 mA h g −1 ), a high energy density (160.9 W h kg −1 ) and remarkable durability.