Oxygen‐Vacancy Abundant NiCo2O4 on the N‐Doped Carbon Nanosheets as Anode for High Performance Lithium Ion Batteries. Issue 9 (1st March 2021) - Jin, Rencheng
Abstract: Abstract: In this work, the oxygen‐vacancy abundant NiCo2 O4 grown on the N‐doped carbon nanosheets are designed and fabricated through a facile procedure. The obtained special structure combined with the oxygen vacancies effectively enhance the contact area, keep the structural integrity as well as accelerate the electron and lithium ion transfer. As an anode for lithium ion batteries, the special architecture exhibits good cycle stability (1096 mAh g −1 after 100 cycles at current density of 200 mA g −1 ) and long cycle capability at high current rate (398 mAh g −1 after 500 cycles at 5000 mA g −1 ). The advantageous features by constructing oxygen‐vacancy abundant transition metal oxides with the conductive N‐doped carbon nanosheets may pave the way for improving the electrochemical performance. Abstract : The oxygen‐vacancy abundant NiCo2 O4 on N‐doped carbon nanosheets were fabricated by a facile method, which displays the excellent long‐term cycle stability at high current density.