Formation of highly porous CuCo2O4 nanosheet assemblies for high-rate and long-term lithium storage
Literature Information
Publication Date
2019-10-04
DOI
10.1039/C9SE00770A
Impact Factor
6.367
Authors
Jia Li, Yongxing Zhang, Li Li, Lixun Cheng, Song Dai, Fei Wang, Yanming Wang
View Original
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.
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Molecular Formula:
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