Electrochemical properties of.5Li2MnO3· 0.5Li4Mn5O12 nanotubes prepared by a self-templating method

Jingyi Cao; Jian Xie; Gaoshao Cao; Tiejun Zhu; Xinbing Zhao; Shichao Zhang

doi:10.1016/j.electacta.2013.08.039

Electrochemical properties of.5Li₂MnO₃· 0.5Li₄Mn₅O₁₂ nanotubes prepared by a self-templating method

Jingyi Cao
, Jian Xie
, Gaoshao Cao
, Tiejun Zhu
, Xinbing Zhao^*
, Shichao Zhang

^*Corresponding author for this work

School of Materials Science and Engineering

Zhejiang University

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

17 Scopus citations

Abstract

Tubular 0.5Li₂MnO₃· 0.5Li₄Mn ₅O₁₂has been synthesized by a facile self-templating method starting from tubular β-MnO₂. The wall thickness and diameter of 0.5Li₂MnO₃· 0.5Li₄Mn ₅O₁₂nanotubes are around 200 and 500 nm, respectively. X-ray diffraction and transmission electron microscopy observations confirmthe composite character, where the Li₄Mn₅O₁₂nano- domains are integrated with the Li₂MnO₃nano-domains. The tubular composite synthesized at 600°C exhibits better electrochemical properties than that synthesized at 700°C due to the higher ratio of LiMn₂O₄ decomposed from Li₄Mn₅O ₁₂. The tubular composite also exhibits better electrochemical properties than the microsized aggregated particles due to the unique tubular nanostructure with large specific surface, short Li-ion diffusion pathway, and loose stacking of the tubes.

Original language	English
Pages (from-to)	447-454
Number of pages	8
Journal	Electrochimica Acta
Volume	111
DOIs	https://doi.org/10.1016/j.electacta.2013.08.039
State	Published - 2013

Keywords

Composite cathode
Li-ion batteries
Nanotubes
Self-templating

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10.1016/j.electacta.2013.08.039

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@article{deb49f2dd51e44c09805b2d3af427ae2,

title = "Electrochemical properties of.5Li2MnO3· 0.5Li4Mn5O12 nanotubes prepared by a self-templating method",

abstract = "Tubular 0.5Li2MnO3· 0.5Li4Mn 5O12has been synthesized by a facile self-templating method starting from tubular β-MnO2. The wall thickness and diameter of 0.5Li2MnO3· 0.5Li4Mn 5O12nanotubes are around 200 and 500 nm, respectively. X-ray diffraction and transmission electron microscopy observations confirmthe composite character, where the Li4Mn5O12nano- domains are integrated with the Li2MnO3nano-domains. The tubular composite synthesized at 600°C exhibits better electrochemical properties than that synthesized at 700°C due to the higher ratio of LiMn2O4 decomposed from Li4Mn5O 12. The tubular composite also exhibits better electrochemical properties than the microsized aggregated particles due to the unique tubular nanostructure with large specific surface, short Li-ion diffusion pathway, and loose stacking of the tubes.",

keywords = "Composite cathode, Li-ion batteries, Nanotubes, Self-templating",

author = "Jingyi Cao and Jian Xie and Gaoshao Cao and Tiejun Zhu and Xinbing Zhao and Shichao Zhang",

year = "2013",

doi = "10.1016/j.electacta.2013.08.039",

language = "英语",

volume = "111",

pages = "447--454",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Electrochemical properties of.5Li2MnO3· 0.5Li4Mn5O12 nanotubes prepared by a self-templating method

AU - Cao, Jingyi

AU - Xie, Jian

AU - Cao, Gaoshao

AU - Zhu, Tiejun

AU - Zhao, Xinbing

AU - Zhang, Shichao

PY - 2013

Y1 - 2013

N2 - Tubular 0.5Li2MnO3· 0.5Li4Mn 5O12has been synthesized by a facile self-templating method starting from tubular β-MnO2. The wall thickness and diameter of 0.5Li2MnO3· 0.5Li4Mn 5O12nanotubes are around 200 and 500 nm, respectively. X-ray diffraction and transmission electron microscopy observations confirmthe composite character, where the Li4Mn5O12nano- domains are integrated with the Li2MnO3nano-domains. The tubular composite synthesized at 600°C exhibits better electrochemical properties than that synthesized at 700°C due to the higher ratio of LiMn2O4 decomposed from Li4Mn5O 12. The tubular composite also exhibits better electrochemical properties than the microsized aggregated particles due to the unique tubular nanostructure with large specific surface, short Li-ion diffusion pathway, and loose stacking of the tubes.

AB - Tubular 0.5Li2MnO3· 0.5Li4Mn 5O12has been synthesized by a facile self-templating method starting from tubular β-MnO2. The wall thickness and diameter of 0.5Li2MnO3· 0.5Li4Mn 5O12nanotubes are around 200 and 500 nm, respectively. X-ray diffraction and transmission electron microscopy observations confirmthe composite character, where the Li4Mn5O12nano- domains are integrated with the Li2MnO3nano-domains. The tubular composite synthesized at 600°C exhibits better electrochemical properties than that synthesized at 700°C due to the higher ratio of LiMn2O4 decomposed from Li4Mn5O 12. The tubular composite also exhibits better electrochemical properties than the microsized aggregated particles due to the unique tubular nanostructure with large specific surface, short Li-ion diffusion pathway, and loose stacking of the tubes.

KW - Composite cathode

KW - Li-ion batteries

KW - Nanotubes

KW - Self-templating

UR - https://www.scopus.com/pages/publications/84883537522

U2 - 10.1016/j.electacta.2013.08.039

DO - 10.1016/j.electacta.2013.08.039

M3 - 文章

AN - SCOPUS:84883537522

SN - 0013-4686

VL - 111

SP - 447

EP - 454

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Electrochemical properties of.5Li₂MnO₃· 0.5Li₄Mn₅O₁₂ nanotubes prepared by a self-templating method

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Keywords

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