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Cover Feature: Optimization of Electrode Potential Ranges for Constructing 4.0 V Carbon‐Based Supercapacitors (ChemElectroChem 3/2020)
Author(s) -
Ye Meng,
Guo Hongwei,
Dou Qingyun,
Guo Hui,
Hou Ruilin,
Guo Junhong,
Yan Xingbin
Publication year - 2020
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201902157
Subject(s) - supercapacitor , electrolyte , cover (algebra) , voltage , electrode , carbon fibers , materials science , ionic liquid , feature (linguistics) , energy density , energy (signal processing) , porosity , computer science , nanotechnology , optoelectronics , chemical engineering , electrical engineering , engineering physics , capacitance , chemistry , composite material , mechanical engineering , physics , engineering , composite number , linguistics , philosophy , biochemistry , quantum mechanics , catalysis
The Cover Feature depicts supercapacitors based on hierarchically porous carbon electrodes and ionic liquid electrolyte. The mass‐balancing strategy is easy to handle, whereas the pre‐charging strategy can achieve a higher energy density. Consequently, the resultant two supercapacitors are able to operate at the theoretical voltage of 4.0 V along with superior energy densities of 112.33 Wh kg −1 and 132.56 Wh kg −1 . More information can be found in the Article by M. Ye et al. on page 624 in Issue 3, 2020 (DOI: 10.1002/celc.201901922).