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Current Topics in Electrochemistry   Volumes    Volume 25 
Evaluation of the performance of N-doped graphene, synthesized by solvothermal method, as anode for Na-ion and Li-ion batteries
Ali İhsan Kömür, Edip Bayram
Pages: 73 - 82
Number of pages: 10
Current Topics in Electrochemistry
Volume 25 

Copyright © 2023 Research Trends. All rights reserved

Graphene is a promising electrode material that is used as anode in commercial Li-ion and Na-ion batteries due to its extraordinary properties such as high electrical conductivity and chemical resistance. Moreover, doping graphene with heteroatoms can modulate the surface electronic charge density, leading to high capacity and stability in ion batteries. On the other hand, the capacity and performance of graphene are governed by the type of doped atom and pore structure depending on the production method. In this study, N-doped graphene (N-GN) was produced by a solvothermal route and characterized. The electrochemical behaviors of N-GN were determined through the cyclic voltammetry (CV), galvanostatic charge/discharge (GCD) and Dunn & Trassati methods. N-GN exhibited a superior long-term performance of 347 mAh.g-1 after 250 cycles at 0.5 A.g-1 for Li+ and 136 mAh.g-1 for Na+, maintaining 92% of the initial capacity with a Coulombic efficiency of >98%. Long-term durability and performance characteristics were attributed to the stability of the solid electrolyte interface (SEI) based on the evaluation of electrochemical impedance spectra taken every 50 cycles during 250 charge/discharge cycles
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