From grass to battery anode: agricultural biomass hemp-derived carbon for lithium storage.

ABSTRACT: Biomass-derived carbon, as a low-cost material source, is an attractive choice to prepare carbon materials, thus providing an alternative to by-product and waste management. Herein, we report the preparation of carbon from hemp stem as a biomass precursor through a simple, low-cost, and environment-friendly method with using steam as the activating agent. The hemp-derived carbon with a hierarchically porous structure and a partial graphitization in amorphous domains was developed, and for the first time, it was applied as an anode material for lithium-ion battery. Natural hemp itself delivers a reversible capacity of 190 mA h g^-1 at a rate of 300 mA g^-1 after 100 cycles. Ball-milling of hemp-derived carbon is further designed to control the physical properties, and co

SUBMITTER: Um JH 

PROVIDER: S-EPMC9086231 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature