Hierarchical NiCoO2 Nanosheets Anchored on Hollow Carbon Spheres for High-Performance Lithium-Ion Battery Anodes

Sheng Chen; Jin Liang; Yuanchao Pang; Bitao Dong; Xin Xu; Shujiang Ding

doi:10.1002/cplu.201800102

Hierarchical NiCoO₂ Nanosheets Anchored on Hollow Carbon Spheres for High-Performance Lithium-Ion Battery Anodes

Sheng Chen
, Jin Liang
, Yuanchao Pang
, Bitao Dong
, Xin Xu
, Shujiang Ding

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

This study reports the synthesis of hierarchical NiCoO₂ nanosheets growing on hollow carbon spheres (denoted as NiCoO₂ NSs@HCS) via a facile and low-cost process. When evaluated as anode materials for lithium-ion batteries, the as-prepared NiCoO₂ NSs@HCS exhibits high specific capacity, enhanced cycling stability, and good rate capability. A high discharge capacity of 631.7 mA h g⁻¹ is delivered even after 200 cycles at a current density of 400 mA g⁻¹, corresponding to approximately 92 % of the second reversible discharge capacity. The hierarchical and hollow structure of NiCoO₂ NSs@HCS plays a role in its excellent performance.

Original language	English
Pages (from-to)	929-933
Number of pages	5
Journal	ChemPlusChem
Volume	83
Issue number	10
DOIs	https://doi.org/10.1002/cplu.201800102
State	Published - Oct 2018

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

NiCoO
hierarchical materials
lithium-ion batteries
nanomaterials

Access to Document

10.1002/cplu.201800102

Cite this

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title = "Hierarchical NiCoO2 Nanosheets Anchored on Hollow Carbon Spheres for High-Performance Lithium-Ion Battery Anodes",

abstract = "This study reports the synthesis of hierarchical NiCoO2 nanosheets growing on hollow carbon spheres (denoted as NiCoO2 NSs@HCS) via a facile and low-cost process. When evaluated as anode materials for lithium-ion batteries, the as-prepared NiCoO2 NSs@HCS exhibits high specific capacity, enhanced cycling stability, and good rate capability. A high discharge capacity of 631.7 mA h g−1 is delivered even after 200 cycles at a current density of 400 mA g−1, corresponding to approximately 92 \% of the second reversible discharge capacity. The hierarchical and hollow structure of NiCoO2 NSs@HCS plays a role in its excellent performance.",

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AU - Dong, Bitao

AU - Xu, Xin

AU - Ding, Shujiang

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AB - This study reports the synthesis of hierarchical NiCoO2 nanosheets growing on hollow carbon spheres (denoted as NiCoO2 NSs@HCS) via a facile and low-cost process. When evaluated as anode materials for lithium-ion batteries, the as-prepared NiCoO2 NSs@HCS exhibits high specific capacity, enhanced cycling stability, and good rate capability. A high discharge capacity of 631.7 mA h g−1 is delivered even after 200 cycles at a current density of 400 mA g−1, corresponding to approximately 92 % of the second reversible discharge capacity. The hierarchical and hollow structure of NiCoO2 NSs@HCS plays a role in its excellent performance.

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