Ultrathin Mesoporous NiCo2 O4 Nanosheet Networks as High-Performance Anodes for Lithium Storage

Xuning Leng; Yuan Shao; Sufeng Wei; Zhonghao Jiang; Jianshe Lian; Guoyong Wang; Qing Jiang

doi:10.1002/cplu.201500322

Ultrathin Mesoporous NiCo₂ O₄ Nanosheet Networks as High-Performance Anodes for Lithium Storage

Chempluschem. 2015 Dec;80(12):1725-1731. doi: 10.1002/cplu.201500322. Epub 2015 Sep 7.

Authors

Xuning Leng¹, Yuan Shao¹, Sufeng Wei², Zhonghao Jiang¹, Jianshe Lian¹, Guoyong Wang¹, Qing Jiang¹

Affiliations

¹ Key Laboratory of Automobile Materials, Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun, 130025, P. R. China.
² Key Laboratory of Advanced Structural Materials, Changchun University of Technology, Changchun, 130012, P.R. China.

PMID: 31973326
DOI: 10.1002/cplu.201500322

Abstract

Ultrathin mesoporous NiCo₂ O₄ nanosheets were directly grown on Ni foams to form an efficient and reversible anode for lithium-ion half-cell batteries. Nanosheets with wrinkles, which were monolayers of 10 nm NiCo₂ O₄ nanoparticles, were interconnected to build up a honeycomb-like architecture that offered a large electrolyte contact area and good structural integrity. The firm attachment of the sheets on the foam endows the anode with good electrical conductivity and excellent mechanical stability. Electrochemical measurements confirm that the electrode has a better performance at reversible Li⁺ storage (specific capacity of 1170.1 mA h g^-1 in the 50th cycle at 0.2 C) than the pasted electrode made of NiCo₂ O₄ nanosheets powder.

Keywords: batteries; electrochemistry; lithium; mesoporous materials; nanostructures.

Abstract

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