Potato derived biomass porous carbon as anode for potassium ion batteries

By Wei Cao, Erjin Zhang, Jue Wang, Zhaomeng Liu, J. Ge, Xinzhi Yu, Hongguan Yang, Bingan Lu. Electrochimica Acta, 2019

168 citations recorded by the source corpus.

Abstract Biomaterials play a significant role in energy storage devices owing to their renewable, inexpensive and eco-friendly peculiarity. In this study, potato biomass porous carbon (PBPC), which was fabricated by a facile two-step carbonization, was used as the anode material for potassium-ion batteries (KIBs). The crystal structure and mesoporous morphology of the carbon derivative at various carbonation temperatures are fully investigated. The electrochemical performance of PBPC electrodes is evaluated, presenting a high reversible specific capacity (248 mA h g −1 at 100 mA g −1 ), an excellent rate performance (152 mA h g −1 at 1000 mA g −1 ) and a superior cycle stability (almost no capacity decay after 400 cycles at a current density of 500 mA g −1 with a Coulombic efficiency about 100%). The superior electrochemical performance is mainly attributed to the uniformly distributed mesopores on PBPC electrode which facilitate the electrolyte transportation and diffusion. This work provides a simple and novel strategy to construct porous carbon as high-performance anode materials for KIBs through a sustainable and environment-friendly way.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/15a2a19a4f9874208ce5e4dad14e6c1e24bc4823