Electrochemical ultracapacitors derived from green and sustainable materials could demonstrate superior energy output and an ultra-long cycle life owing to large accessible surface area and obviously shortened ion diffusion pathways.

Correction for ‘A hierarchical integrated 3D carbon electrode derived from gingko leaves via hydrothermal carbonization of H3PO4 for high-performance supercapacitors’ by Han Liu et al., Nanoscale Adv., 2023, 5, 786–795, https://doi.org/10.1039/D2NA00758D.