One-step synthesis of Co@C composite as high-performance anode material for lithium-ion batteries

Ming Jun Xiao; Fu Liang Zhu; Gong Rui Wang; Chao Yu Duan; Yan Shuang Meng; Yue Zhang

doi:10.20964/2018.01.60

One-step synthesis of Co@C composite as high-performance anode material for lithium-ion batteries

Ming Jun Xiao, Fu Liang Zhu, Gong Rui Wang, Chao Yu Duan, Yan Shuang Meng, Yue Zhang

Manufacturing Engineering

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Abstract

A carbon-coated cobalt (Co@C) composite was synthesized by a one-step method using ionic liquid as carbon source and reducing agent. The Co@C composite exhibited a core-shell structure, in which the cobalt nanoparticles uniformly embedded in the carbon matrix. When used as the anode material for lithium ion batteries, the cobalt nanoparticles enhanced the kinetics of Li+ and electronic transport during the charge/discharge process. The Co@C composite material delivered a reversible capacity of 657.3 mAh g_-1 after 60 cycles at a current density of 0.1C and exhibits improved rate performance when compared with pure carbon.

Original language	English
Pages (from-to)	762-770
Number of pages	9
Journal	International Journal of Electrochemical Science
Volume	13
Issue number	1
DOIs	https://doi.org/10.20964/2018.01.60
State	Published - Jan 1 2018

Scopus Subject Areas

Electrochemistry

Keywords

Co@C composite
Ionic liquid
Lithium ion batteries

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

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10.20964/2018.01.60

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title = "One-step synthesis of Co@C composite as high-performance anode material for lithium-ion batteries",

abstract = "A carbon-coated cobalt (Co@C) composite was synthesized by a one-step method using ionic liquid as carbon source and reducing agent. The Co@C composite exhibited a core-shell structure, in which the cobalt nanoparticles uniformly embedded in the carbon matrix. When used as the anode material for lithium ion batteries, the cobalt nanoparticles enhanced the kinetics of Li+ and electronic transport during the charge/discharge process. The Co@C composite material delivered a reversible capacity of 657.3 mAh g-1 after 60 cycles at a current density of 0.1C and exhibits improved rate performance when compared with pure carbon.",

keywords = "Co@C composite, Ionic liquid, Lithium ion batteries",

author = "Xiao, {Ming Jun} and Zhu, {Fu Liang} and Wang, {Gong Rui} and Duan, {Chao Yu} and Meng, {Yan Shuang} and Yue Zhang",

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AU - Xiao, Ming Jun

AU - Zhu, Fu Liang

AU - Wang, Gong Rui

AU - Duan, Chao Yu

AU - Meng, Yan Shuang

AU - Zhang, Yue

PY - 2018/1/1

Y1 - 2018/1/1

N2 - A carbon-coated cobalt (Co@C) composite was synthesized by a one-step method using ionic liquid as carbon source and reducing agent. The Co@C composite exhibited a core-shell structure, in which the cobalt nanoparticles uniformly embedded in the carbon matrix. When used as the anode material for lithium ion batteries, the cobalt nanoparticles enhanced the kinetics of Li+ and electronic transport during the charge/discharge process. The Co@C composite material delivered a reversible capacity of 657.3 mAh g-1 after 60 cycles at a current density of 0.1C and exhibits improved rate performance when compared with pure carbon.

AB - A carbon-coated cobalt (Co@C) composite was synthesized by a one-step method using ionic liquid as carbon source and reducing agent. The Co@C composite exhibited a core-shell structure, in which the cobalt nanoparticles uniformly embedded in the carbon matrix. When used as the anode material for lithium ion batteries, the cobalt nanoparticles enhanced the kinetics of Li+ and electronic transport during the charge/discharge process. The Co@C composite material delivered a reversible capacity of 657.3 mAh g-1 after 60 cycles at a current density of 0.1C and exhibits improved rate performance when compared with pure carbon.

KW - Co@C composite

KW - Ionic liquid

KW - Lithium ion batteries

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JO - International Journal of Electrochemical Science

JF - International Journal of Electrochemical Science

IS - 1

ER -

One-step synthesis of Co@C composite as high-performance anode material for lithium-ion batteries

Abstract

Scopus Subject Areas

Keywords

UN SDGs

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