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Potential of B/Al‐Doped Silicene Electrodes in Na/K‐Ion Batteries
Author(s) -
Zhu Jiajie,
Gandi Appala Naidu,
Schwingenschlögl Udo
Publication year - 2018
Publication title -
advanced theory and simulations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.068
H-Index - 17
ISSN - 2513-0390
DOI - 10.1002/adts.201800017
Subject(s) - silicene , materials science , doping , ion , graphite , electrode , charge (physics) , electrochemistry , diffusion , nanotechnology , optoelectronics , silicon , chemistry , composite material , physics , organic chemistry , quantum mechanics , thermodynamics
Metal‐ion batteries are key for energy storage in both portable electronics and large‐scale applications. As the ion capacity of the widely used graphite electrodes is limited, 2D materials, in particular silicene, are considered for possible replacement. Here, the effects of B/Al doping on the ion capacity of silicene are studied and it is demonstrated that complex charge transfer leads to ultra‐high Na capacity. Low Na/K diffusion barriers open potential for fast charge and discharge.