Highly mesoporous carbon from Teak wood sawdust as prospective electrode for the construction of high energy Li-ion capacitors

We report the fabrication of high energy Li -ion capacitor (LIC) using teak wood sawdust derived mesoporous activated carbon (AC-HBP) with electrochemically pre-lithiated graphite (LiC6). Three interesting supercapacitor assemblies are constructed using AC-HBP to realize the high energy density. Amongst, AC-HBP paired with LiC6 delivered a maximum energy density of similar to 111 Wh kg(-1) compared to Li4Ti5O12 in LIC (similar to 53 Wh kg(-1)) and AC-HBP (similar to 37 Wh kg(-1)) in symmetric configurations. This excellent energy density is mainly ascribed to the tailored mesoporous nature (similar to 67%) of the high surface area activated carbon (2108 m(2)g(-1)) obtained via hydrothermal carbonization process in the presence of processing agent, benzene tetracarboxylic acid followed by physico-chemical activation. (C) 2017 Elsevier Ltd. All rights reserved.