Titanium-substituted Na0.44MnO2 nanorods as cathode materials for high performance sodium-ion batteries

Pan Zhan; Kailong Jiao; Junxiang Wang; Zongqian Hu; Rui Ma; Hongmin Zhu; Shuqiang Jiao

doi:10.1149/2.0521512jes

Titanium-substituted Na_0.44MnO₂ nanorods as cathode materials for high performance sodium-ion batteries

Pan Zhan, Kailong Jiao, Junxiang Wang, Zongqian Hu, Rui Ma, Hongmin Zhu, Shuqiang Jiao

ENG - Metallurgy

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

15 Citations (Scopus)

Abstract

A series of titanium-substituted manganese oxides, Na_0.44Ti_xMn_1-xO₂ (x = 0.11, 0.22, 0.33, and 0.44) with the Na_0.44MnO₂ were prepared by sol-gel methods. The electrochemical characteristics of these compounds, which are different from Na_0.44MnO₂, were examined in coin-type cells with NaPF₆ electrolyte. While the Na_0.44Ti_0.11Mn_0.89O₂ and Na_0.44Ti_0.44Mn_0.56O₂ delivered lower capacities, the Na_0.44Ti_0.22Mn_0.78O₂ showed higher capacities, about 120 mAh g^-1. The Ti-substituted materials exhibited excellent capacity retention over one hundred or more cycles, with 71.8% capacity retention over 450 cycles. Titanium substitution eliminates Mn dissolution.

Original language	English
Pages (from-to)	A2296-A2301
Journal	Journal of the Electrochemical Society
Volume	162
Issue number	12
DOIs	https://doi.org/10.1149/2.0521512jes
Publication status	Published - 2015

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

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

Access to Document

10.1149/2.0521512jes

Cite this

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title = "Titanium-substituted Na0.44MnO2 nanorods as cathode materials for high performance sodium-ion batteries",

abstract = "A series of titanium-substituted manganese oxides, Na0.44TixMn1-xO2 (x = 0.11, 0.22, 0.33, and 0.44) with the Na0.44MnO2 were prepared by sol-gel methods. The electrochemical characteristics of these compounds, which are different from Na0.44MnO2, were examined in coin-type cells with NaPF6 electrolyte. While the Na0.44Ti0.11Mn0.89O2 and Na0.44Ti0.44Mn0.56O2 delivered lower capacities, the Na0.44Ti0.22Mn0.78O2 showed higher capacities, about 120 mAh g-1. The Ti-substituted materials exhibited excellent capacity retention over one hundred or more cycles, with 71.8% capacity retention over 450 cycles. Titanium substitution eliminates Mn dissolution.",

author = "Pan Zhan and Kailong Jiao and Junxiang Wang and Zongqian Hu and Rui Ma and Hongmin Zhu and Shuqiang Jiao",

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TY - JOUR

T1 - Titanium-substituted Na0.44MnO2 nanorods as cathode materials for high performance sodium-ion batteries

AU - Zhan, Pan

AU - Jiao, Kailong

AU - Wang, Junxiang

AU - Hu, Zongqian

AU - Ma, Rui

AU - Zhu, Hongmin

AU - Jiao, Shuqiang

PY - 2015

Y1 - 2015

N2 - A series of titanium-substituted manganese oxides, Na0.44TixMn1-xO2 (x = 0.11, 0.22, 0.33, and 0.44) with the Na0.44MnO2 were prepared by sol-gel methods. The electrochemical characteristics of these compounds, which are different from Na0.44MnO2, were examined in coin-type cells with NaPF6 electrolyte. While the Na0.44Ti0.11Mn0.89O2 and Na0.44Ti0.44Mn0.56O2 delivered lower capacities, the Na0.44Ti0.22Mn0.78O2 showed higher capacities, about 120 mAh g-1. The Ti-substituted materials exhibited excellent capacity retention over one hundred or more cycles, with 71.8% capacity retention over 450 cycles. Titanium substitution eliminates Mn dissolution.

AB - A series of titanium-substituted manganese oxides, Na0.44TixMn1-xO2 (x = 0.11, 0.22, 0.33, and 0.44) with the Na0.44MnO2 were prepared by sol-gel methods. The electrochemical characteristics of these compounds, which are different from Na0.44MnO2, were examined in coin-type cells with NaPF6 electrolyte. While the Na0.44Ti0.11Mn0.89O2 and Na0.44Ti0.44Mn0.56O2 delivered lower capacities, the Na0.44Ti0.22Mn0.78O2 showed higher capacities, about 120 mAh g-1. The Ti-substituted materials exhibited excellent capacity retention over one hundred or more cycles, with 71.8% capacity retention over 450 cycles. Titanium substitution eliminates Mn dissolution.

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