Solid-state synthesis of LiCoO2/LiCo0.99Ti 0.01O2 composite as cathode material for lithium ion batteries

Jinpeng Yu; Zenghui Han; Xiaohong Hu; Hui Zhan; Yunhong Zhou; Xingjiang Liu

doi:10.1016/j.jpowsour.2012.09.050

Solid-state synthesis of LiCoO₂/LiCo_0.99Ti _0.01O₂ composite as cathode material for lithium ion batteries

Jinpeng Yu, Zenghui Han, Xiaohong Hu, Hui Zhan^*, Yunhong Zhou, Xingjiang Liu

^*この研究の対応する著者

ナノ・ライフ創新研究機構

研究成果: Article › 査読

28 被引用数 (Scopus)

抄録

We have fabricated a micron-sized LiCoO₂/LiCo _0.99Ti_0.01O₂ composite successfully by solid-phase synthesis, its core-shell structure has been proved by SEM and XPS observation. Electrochemical examinations show that comparing with LiCoO ₂ and LiCo_0.99Ti_0.01O₂, the obtained LiCoO₂/LiCo_0.99Ti_0.01O₂ composite presents greatly enhanced cycling stability as well as rate capability. In addition, DSC measurement indicates that LiCoO₂/LiCo _0.99Ti_0.01O₂ has a better thermal safety than LiCoO₂. It is considered that all the improvement should be explained by the particular core-shell morphology of the LiCoO₂/LiCo _0.99Ti_0.01O₂ sample.

本文言語	English
ページ（範囲）	34-39
ページ数	6
ジャーナル	Journal of Power Sources
巻	225
DOI	https://doi.org/10.1016/j.jpowsour.2012.09.050
出版ステータス	Published - 2013 3月 1

ASJC Scopus subject areas

電子工学および電気工学
エネルギー工学および電力技術
再生可能エネルギー、持続可能性、環境
物理化学および理論化学

UN SDG

この成果は、次の持続可能な開発目標に貢献しています

文献へのアクセス

10.1016/j.jpowsour.2012.09.050

他のファイルとリンク

引用スタイル

@article{009828428cc34555b1b0f2ec45bf8897,

title = "Solid-state synthesis of LiCoO2/LiCo0.99Ti 0.01O2 composite as cathode material for lithium ion batteries",

abstract = "We have fabricated a micron-sized LiCoO2/LiCo 0.99Ti0.01O2 composite successfully by solid-phase synthesis, its core-shell structure has been proved by SEM and XPS observation. Electrochemical examinations show that comparing with LiCoO 2 and LiCo0.99Ti0.01O2, the obtained LiCoO2/LiCo0.99Ti0.01O2 composite presents greatly enhanced cycling stability as well as rate capability. In addition, DSC measurement indicates that LiCoO2/LiCo 0.99Ti0.01O2 has a better thermal safety than LiCoO2. It is considered that all the improvement should be explained by the particular core-shell morphology of the LiCoO2/LiCo 0.99Ti0.01O2 sample.",

keywords = "Core-shell structure, Layered compound, Lithium batteries, Solid-phase synthesis",

author = "Jinpeng Yu and Zenghui Han and Xiaohong Hu and Hui Zhan and Yunhong Zhou and Xingjiang Liu",

year = "2013",

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T1 - Solid-state synthesis of LiCoO2/LiCo0.99Ti 0.01O2 composite as cathode material for lithium ion batteries

AU - Yu, Jinpeng

AU - Han, Zenghui

AU - Hu, Xiaohong

AU - Zhan, Hui

AU - Zhou, Yunhong

AU - Liu, Xingjiang

PY - 2013/3/1

Y1 - 2013/3/1

N2 - We have fabricated a micron-sized LiCoO2/LiCo 0.99Ti0.01O2 composite successfully by solid-phase synthesis, its core-shell structure has been proved by SEM and XPS observation. Electrochemical examinations show that comparing with LiCoO 2 and LiCo0.99Ti0.01O2, the obtained LiCoO2/LiCo0.99Ti0.01O2 composite presents greatly enhanced cycling stability as well as rate capability. In addition, DSC measurement indicates that LiCoO2/LiCo 0.99Ti0.01O2 has a better thermal safety than LiCoO2. It is considered that all the improvement should be explained by the particular core-shell morphology of the LiCoO2/LiCo 0.99Ti0.01O2 sample.

AB - We have fabricated a micron-sized LiCoO2/LiCo 0.99Ti0.01O2 composite successfully by solid-phase synthesis, its core-shell structure has been proved by SEM and XPS observation. Electrochemical examinations show that comparing with LiCoO 2 and LiCo0.99Ti0.01O2, the obtained LiCoO2/LiCo0.99Ti0.01O2 composite presents greatly enhanced cycling stability as well as rate capability. In addition, DSC measurement indicates that LiCoO2/LiCo 0.99Ti0.01O2 has a better thermal safety than LiCoO2. It is considered that all the improvement should be explained by the particular core-shell morphology of the LiCoO2/LiCo 0.99Ti0.01O2 sample.

KW - Core-shell structure

KW - Layered compound

KW - Lithium batteries

KW - Solid-phase synthesis

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