Graphene-encapsulated Li2MnTi3O8 nanoparticles as a high rate anode material for lithium-ion batteries

Le Yang; Xinyi Zhang; Yue Li; Feng Hao; Haosen Chen; Meng Yang; Daining Fang

doi:10.1016/j.electacta.2014.12.133

Graphene-encapsulated Li₂MnTi₃O₈ nanoparticles as a high rate anode material for lithium-ion batteries

Le Yang
, Xinyi Zhang
, Yue Li
, Feng Hao
, Haosen Chen^*
, Meng Yang
, Daining Fang

^*Corresponding author for this work

Peking University
Nanjing Tech University
Tsinghua University

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

29 Citations (Scopus)

Abstract

Graphene-encapsulated Li₂MnTi₃O₈ nanoparticles were synthesized via a modified sol-gel process using graphene oxide as the template. The prepared Li₂MnTi₃O₈ material has a complex spinel structure in the P4₃32 space group. The morphology of the graphene-encapsulated Li₂MnTi₃O₈ composite indicates that the Li₂MnTi₃O₈ particles can be uniformly scattered on a graphene substrate, and these particles have a size of 10-20 nm. The electrochemical properties indicate that the graphene-encapsulated Li₂MnTi₃O₈ material possesses a stable reversible discharge capacity of ∼220 mAh g^-1 after 50 cycles at 0.1 C. In addition, the reversible capacity at 2 C improved by 70% after graphene-encapsulation, which indicates the excellent high rate capability.

Original language	English
Pages (from-to)	272-278
Number of pages	7
Journal	Electrochimica Acta
Volume	155
DOIs	https://doi.org/10.1016/j.electacta.2014.12.133
Publication status	Published - 10 Feb 2015
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Anode
Graphene-encapsulated
LiMnTiO
Lithium-ion battery
Titanate material

Access to Document

10.1016/j.electacta.2014.12.133

Cite this

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title = "Graphene-encapsulated Li2MnTi3O8 nanoparticles as a high rate anode material for lithium-ion batteries",

abstract = "Graphene-encapsulated Li2MnTi3O8 nanoparticles were synthesized via a modified sol-gel process using graphene oxide as the template. The prepared Li2MnTi3O8 material has a complex spinel structure in the P4332 space group. The morphology of the graphene-encapsulated Li2MnTi3O8 composite indicates that the Li2MnTi3O8 particles can be uniformly scattered on a graphene substrate, and these particles have a size of 10-20 nm. The electrochemical properties indicate that the graphene-encapsulated Li2MnTi3O8 material possesses a stable reversible discharge capacity of ∼220 mAh g-1 after 50 cycles at 0.1 C. In addition, the reversible capacity at 2 C improved by 70\% after graphene-encapsulation, which indicates the excellent high rate capability.",

keywords = "Anode, Graphene-encapsulated, LiMnTiO, Lithium-ion battery, Titanate material",

author = "Le Yang and Xinyi Zhang and Yue Li and Feng Hao and Haosen Chen and Meng Yang and Daining Fang",

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AU - Yang, Le

AU - Zhang, Xinyi

AU - Li, Yue

AU - Hao, Feng

AU - Chen, Haosen

AU - Yang, Meng

AU - Fang, Daining

PY - 2015/2/10

Y1 - 2015/2/10

N2 - Graphene-encapsulated Li2MnTi3O8 nanoparticles were synthesized via a modified sol-gel process using graphene oxide as the template. The prepared Li2MnTi3O8 material has a complex spinel structure in the P4332 space group. The morphology of the graphene-encapsulated Li2MnTi3O8 composite indicates that the Li2MnTi3O8 particles can be uniformly scattered on a graphene substrate, and these particles have a size of 10-20 nm. The electrochemical properties indicate that the graphene-encapsulated Li2MnTi3O8 material possesses a stable reversible discharge capacity of ∼220 mAh g-1 after 50 cycles at 0.1 C. In addition, the reversible capacity at 2 C improved by 70% after graphene-encapsulation, which indicates the excellent high rate capability.

AB - Graphene-encapsulated Li2MnTi3O8 nanoparticles were synthesized via a modified sol-gel process using graphene oxide as the template. The prepared Li2MnTi3O8 material has a complex spinel structure in the P4332 space group. The morphology of the graphene-encapsulated Li2MnTi3O8 composite indicates that the Li2MnTi3O8 particles can be uniformly scattered on a graphene substrate, and these particles have a size of 10-20 nm. The electrochemical properties indicate that the graphene-encapsulated Li2MnTi3O8 material possesses a stable reversible discharge capacity of ∼220 mAh g-1 after 50 cycles at 0.1 C. In addition, the reversible capacity at 2 C improved by 70% after graphene-encapsulation, which indicates the excellent high rate capability.

KW - Anode

KW - Graphene-encapsulated

KW - LiMnTiO

KW - Lithium-ion battery

KW - Titanate material

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