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

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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

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Publication details

The article was received on 08 Sep 2019, accepted on 04 Oct 2019 and first published on 04 Oct 2019


Article type: Paper
DOI: 10.1039/C9SE00770A
Sustainable Energy Fuels, 2019, Advance Article

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    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, Advance Article , DOI: 10.1039/C9SE00770A

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