A layered P2- and O3-type composite as a high-energy cathode for rechargeable sodium-ion batteries

Shaohua Guo; Pan Liu; Haijun Yu; Yanbei Zhu; Mingwei Chen; Masayoshi Ishida; Haoshen Zhou

doi:10.1002/anie.201411788

A layered P2- and O3-type composite as a high-energy cathode for rechargeable sodium-ion batteries

Shaohua Guo, Pan Liu, Haijun Yu, Yanbei Zhu, Mingwei Chen, Masayoshi Ishida, Haoshen Zhou

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

272 Citations (Scopus)

Abstract

A layered composite with P2 and O3 integration is proposed toward a sodium-ion battery with high energy density and long cycle life. The integration of P2 and O3 structures in this layered oxide is clearly characterized by XRD refinement, SAED and HAADF and ABF-STEM at atomic resolution. The biphase synergy in this layered P2+O3 composite is well established during the electrochemical reaction. This layered composite can deliver a high reversible capacity with the largest energy density of 640 mAh g<sup>-1</sup>, and it also presents good capacity retention over 150 times of sodium extraction and insertion.

Original language	English
Pages (from-to)	5894-5899
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	54
Issue number	20
DOIs	https://doi.org/10.1002/anie.201411788
Publication status	Published - 2015 May 11

Keywords

composite materials
layered structures
Na<inf>x</inf>MO<inf>2</inf> polytypes
sodium-ion cathodes

ASJC Scopus subject areas

Chemistry(all)
Catalysis

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abstract = "A layered composite with P2 and O3 integration is proposed toward a sodium-ion battery with high energy density and long cycle life. The integration of P2 and O3 structures in this layered oxide is clearly characterized by XRD refinement, SAED and HAADF and ABF-STEM at atomic resolution. The biphase synergy in this layered P2+O3 composite is well established during the electrochemical reaction. This layered composite can deliver a high reversible capacity with the largest energy density of 640 mAh g-1, and it also presents good capacity retention over 150 times of sodium extraction and insertion.",

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AU - Guo, Shaohua

AU - Liu, Pan

AU - Yu, Haijun

AU - Zhu, Yanbei

AU - Chen, Mingwei

AU - Ishida, Masayoshi

AU - Zhou, Haoshen

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AB - A layered composite with P2 and O3 integration is proposed toward a sodium-ion battery with high energy density and long cycle life. The integration of P2 and O3 structures in this layered oxide is clearly characterized by XRD refinement, SAED and HAADF and ABF-STEM at atomic resolution. The biphase synergy in this layered P2+O3 composite is well established during the electrochemical reaction. This layered composite can deliver a high reversible capacity with the largest energy density of 640 mAh g-1, and it also presents good capacity retention over 150 times of sodium extraction and insertion.

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A layered P2- and O3-type composite as a high-energy cathode for rechargeable sodium-ion batteries

Abstract

Keywords

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