One-step solution combustion synthesis of CuO/Cu2O/C anode for long cycle life Li-ion batteries

TY - JOUR

T1 - One-step solution combustion synthesis of CuO/Cu2O/C anode for long cycle life Li-ion batteries

AU - Xu, Chunxiao

AU - Manukyan, Khachatur V.

AU - Adams, Ryan A.

AU - Pol, Vilas G.

AU - Chen, Pengwan

AU - Varma, Arvind

N1 - Publisher Copyright: © 2018 Elsevier Ltd

PY - 2019/2

Y1 - 2019/2

N2 - Using glucose (C6H12O6) and copper nitrate (Cu(NO3)2) as fuel and oxidizing agent respectively, CuO/Cu2O/C composites with different carbon contents were successfully prepared by the solution combustion synthesis method. The as-obtained CuO/Cu2O nanoparticles exhibited uniform spherical morphology and, by changing the amount of fuel and ambient temperature, carbon was synthesized in-situ with content ranging from 3 to 36 wt%. The electrochemical performance of the CuO/Cu2O/C anode in Li-ion batteries was investigated systematically, demonstrating >400 mAh g−1 capacity at 20 mA g−1 current density and highly stable cycling performance with capacity 260 mAh g−1 after 600 cycles at current density 0.2 A g−1. This performance is attributed to the synergistic effect of anodes porous structure, conducting carbon coating and two-component CuO/Cu2O structure. Owing to the inexpensive and facile solution combustion synthesis method and the resulting high electrochemical performance, the CuO/Cu2O/Carbon composite is a promising anode material for application in Li-ion batteries.

AB - Using glucose (C6H12O6) and copper nitrate (Cu(NO3)2) as fuel and oxidizing agent respectively, CuO/Cu2O/C composites with different carbon contents were successfully prepared by the solution combustion synthesis method. The as-obtained CuO/Cu2O nanoparticles exhibited uniform spherical morphology and, by changing the amount of fuel and ambient temperature, carbon was synthesized in-situ with content ranging from 3 to 36 wt%. The electrochemical performance of the CuO/Cu2O/C anode in Li-ion batteries was investigated systematically, demonstrating >400 mAh g−1 capacity at 20 mA g−1 current density and highly stable cycling performance with capacity 260 mAh g−1 after 600 cycles at current density 0.2 A g−1. This performance is attributed to the synergistic effect of anodes porous structure, conducting carbon coating and two-component CuO/Cu2O structure. Owing to the inexpensive and facile solution combustion synthesis method and the resulting high electrochemical performance, the CuO/Cu2O/Carbon composite is a promising anode material for application in Li-ion batteries.

KW - Anodes

KW - Copper oxide/carbon composite

KW - Lithium ion battery

KW - Solution combustion synthesis

UR - https://www.scopus.com/pages/publications/85056171985

U2 - 10.1016/j.carbon.2018.10.016

DO - 10.1016/j.carbon.2018.10.016

M3 - Article

AN - SCOPUS:85056171985

SN - 0008-6223

VL - 142

SP - 51

EP - 59

JO - Carbon

JF - Carbon

ER -