Issue 12, 2019

Formation of highly porous CuCo2O4 nanosheet assemblies for high-rate and long-term lithium storage

Abstract

Mixed transition metal oxides with high theoretical capacity show great potential to replace carbonaceous anode materials in lithium-ion batteries. However, they usually undergo large volume change during lithiation/delithiation, leading to poor rate and cycling performance. In this work, unique microsized assemblies constructed from porous CuCo2O4 nanosheets are synthesized by a facile method. Benefiting from the desired structural and compositional features, the as-synthesized CuCo2O4 nanosheet assemblies manifest excellent lithium storage performance in terms of high rate capability and long-term cycling stability. Specifically, the CuCo2O4 nanosheet assemblies can deliver a high specific capacity of 1104 mA h g−1 at 2 A g−1 after 600 cycles. Even at a high rate of 5 A g−1, a high specific capacity of 656 mA h g−1 can still be achieved.

Graphical abstract: Formation of highly porous CuCo2O4 nanosheet assemblies for high-rate and long-term lithium storage

Supplementary files

Article information

Article type
Paper
Submitted
08 Sept. 2019
Accepted
04 Okt. 2019
First published
04 Okt. 2019

Sustainable Energy Fuels, 2019,3, 3370-3374

Formation of highly porous CuCo2O4 nanosheet assemblies for high-rate and long-term lithium storage

J. Li, Y. Zhang, L. Li, L. Cheng, S. Dai, F. Wang, Y. Wang and X. Yu, Sustainable Energy Fuels, 2019, 3, 3370 DOI: 10.1039/C9SE00770A

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