Chinese rose-derived nanostructure carbon as new anode material for lithium-ion batteries

Renewable biomass carbon materials are of wide interest for energy storage applications. Using high-temperature pyrolysis, we carbonized Chinese rose for the first time at different temperatures to investigate the performance of lithium-ion batteries (LIBs) of the resulting materials under different temperature conditions. The fluffy folded structure after carbonization exhibits multiple active sites, which helps to improve the electrical conductivity and mitigate the damage to the material structure caused by electrode expansion. The negative electrode made from the 1000 degrees C carbonized material can provide a high specific capacity of 725 mAh g-1 after 250 cycles at 0.1 A g-1, and maintains a specific capacity of 373 mAh g-1 at a high current density of 1 A g-1, with excellent rate performance. The results show that Chinese rose-derived carbon (CRDC) materials can be naturally green anode materials for next-generation lithium-ion batteries.