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Porous layer assembled hierarchical Co3O4 as anode materials for lithium-ion batteries
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Porous layer assembled hierarchical Co3O4 as anode materials for lithium-ion batteries
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Journal Article
Porous layer assembled hierarchical Co3O4 as anode materials for lithium-ion batteries
2018
Overview
The flower-like Co
3
O
4
particles with three-dimensional structure have been achieved by inheriting the flower-like framework of β-Co(OH)
2
particles fabricated by a facile solvothermal method without any surfactant. The obtained Co
3
O
4
microflower, which was composed of large amounts of self-assembled porous ultrathin nanosheets, exhibited excellent electrochemical performances in terms of high specific capacity and good cycle stability when being evaluated as anode materials for lithium-ion battery. Specifically, a high reversible capacity of above 1100 mA h g
−1
was achieved after 50 cycles at the current density of 296 mA g
−1
. Hierarchical flower-like structure with mesoporous was considered as providing more active sites for Li
+
insertion and paths for transport of Li
+
, which led to faster lithium-ion diffusion. Co
3
O
4
porous flower-like nanostructures possessed significant potential application in energy storage systems.
Publisher
Springer US,Springer Nature B.V
