Lithium storage in hollow spherical ZnFe2O4 as anode materials for lithium ion batteries

Xianwei Guo; Xia Lu; Xiangpeng Fang; Ya Mao; Zhaoxiang Wang; Liquan Chen; Xiaoxue Xu; Hong Yang; Yinong Liu

doi:10.1016/j.elecom.2010.04.003

Lithium storage in hollow spherical ZnFe₂O₄ as anode materials for lithium ion batteries

Xianwei Guo, Xia Lu, Xiangpeng Fang, Ya Mao, Zhaoxiang Wang^*, Liquan Chen, Xiaoxue Xu, Hong Yang, Yinong Liu

^*Corresponding author for this work

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

236 Citations (Scopus)

Abstract

Hollow microspheres composed of phase-pure ZnFe₂O₄ nanoparticles (hierarchically structured) have been prepared by hydrothermal reaction. The unique hollow spherical structure significantly increases the specific capacity and improves capacity retention of this material. The product of each phase transition during initial discharge (ZnFe₂O₄ Li_0.5ZnFe₂O₄ Li₂ZnFe ₂O₄ → Li₂O + Li-Zn + Fe) and their structural reversibility are recognized by X-ray diffraction and electrochemical characterization. The products of the deeply discharged (Li-Zn alloy and Fe) and recharged materials (Fe₂O₃) were clarified based on high resolution transmission electron microscopic technique and first-principle calculations.

Original language	English
Pages (from-to)	847-850
Number of pages	4
Journal	Electrochemistry Communications
Volume	12
Issue number	6
DOIs	https://doi.org/10.1016/j.elecom.2010.04.003
Publication status	Published - Jun 2010
Externally published	Yes

Keywords

Hierarchical
Hollow microspheres
Lithium ion battery
Phase transitions
ZnFeO

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10.1016/j.elecom.2010.04.003

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title = "Lithium storage in hollow spherical ZnFe2O4 as anode materials for lithium ion batteries",

abstract = "Hollow microspheres composed of phase-pure ZnFe2O4 nanoparticles (hierarchically structured) have been prepared by hydrothermal reaction. The unique hollow spherical structure significantly increases the specific capacity and improves capacity retention of this material. The product of each phase transition during initial discharge (ZnFe2O4 Li0.5ZnFe2O4 Li2ZnFe 2O4 → Li2O + Li-Zn + Fe) and their structural reversibility are recognized by X-ray diffraction and electrochemical characterization. The products of the deeply discharged (Li-Zn alloy and Fe) and recharged materials (Fe2O3) were clarified based on high resolution transmission electron microscopic technique and first-principle calculations.",

keywords = "Hierarchical, Hollow microspheres, Lithium ion battery, Phase transitions, ZnFeO",

author = "Xianwei Guo and Xia Lu and Xiangpeng Fang and Ya Mao and Zhaoxiang Wang and Liquan Chen and Xiaoxue Xu and Hong Yang and Yinong Liu",

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T1 - Lithium storage in hollow spherical ZnFe2O4 as anode materials for lithium ion batteries

AU - Guo, Xianwei

AU - Lu, Xia

AU - Fang, Xiangpeng

AU - Mao, Ya

AU - Wang, Zhaoxiang

AU - Chen, Liquan

AU - Xu, Xiaoxue

AU - Yang, Hong

AU - Liu, Yinong

PY - 2010/6

Y1 - 2010/6

N2 - Hollow microspheres composed of phase-pure ZnFe2O4 nanoparticles (hierarchically structured) have been prepared by hydrothermal reaction. The unique hollow spherical structure significantly increases the specific capacity and improves capacity retention of this material. The product of each phase transition during initial discharge (ZnFe2O4 Li0.5ZnFe2O4 Li2ZnFe 2O4 → Li2O + Li-Zn + Fe) and their structural reversibility are recognized by X-ray diffraction and electrochemical characterization. The products of the deeply discharged (Li-Zn alloy and Fe) and recharged materials (Fe2O3) were clarified based on high resolution transmission electron microscopic technique and first-principle calculations.

AB - Hollow microspheres composed of phase-pure ZnFe2O4 nanoparticles (hierarchically structured) have been prepared by hydrothermal reaction. The unique hollow spherical structure significantly increases the specific capacity and improves capacity retention of this material. The product of each phase transition during initial discharge (ZnFe2O4 Li0.5ZnFe2O4 Li2ZnFe 2O4 → Li2O + Li-Zn + Fe) and their structural reversibility are recognized by X-ray diffraction and electrochemical characterization. The products of the deeply discharged (Li-Zn alloy and Fe) and recharged materials (Fe2O3) were clarified based on high resolution transmission electron microscopic technique and first-principle calculations.

KW - Hierarchical

KW - Hollow microspheres

KW - Lithium ion battery

KW - Phase transitions

KW - ZnFeO

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DO - 10.1016/j.elecom.2010.04.003

M3 - Article

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SN - 1388-2481

VL - 12

SP - 847

EP - 850

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 6

ER -

Lithium storage in hollow spherical ZnFe₂O₄ as anode materials for lithium ion batteries

Abstract

Keywords

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