High electrochemical performances of microsphere C-TiO2 anode for sodium-ion battery

Seung Min Oh; Jang Yeon Hwang; C. S. Yoon; Jun Lu; Khalil Amine; Illias Belharouak; Yang Kook Sun

doi:10.1021/am501772a

High electrochemical performances of microsphere C-TiO₂ anode for sodium-ion battery

Seung Min Oh, Jang Yeon Hwang, C. S. Yoon, Jun Lu, Khalil Amine, Illias Belharouak, Yang Kook Sun

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

213 Scopus citations

Abstract

High-power, long-life carbon-coated TiO₂ microsphere electrodes were synthesized by a hydrothermal method for sodium ion batteries, and the electrochemical properties were evaluated as a function of carbon content. The carbon coating, introduced by sucrose addition, had an effect of suppressing the growth of the TiO₂ primary crystallites during calcination. The carbon coated TiO₂ (sucrose 20 wt % coated) electrode exhibited excellent cycle retention during 50 cycles (100%) and superior rate capability up to a 30 C rate at room temperature. This cell delivered a high discharge capacity of 155 mAh g_composite^-1 at 0.1 C, 149 mAh g _composite^-1 at 1 C, and 82.7 mAh g _composite^-1 at a 10 C rate, respectively.

Original language	English
Pages (from-to)	11295-11301
Number of pages	7
Journal	ACS Applied Materials and Interfaces
Volume	6
Issue number	14
DOIs	https://doi.org/10.1021/am501772a
State	Published - Jul 23 2014
Externally published	Yes

Keywords

Na battery
anode
carbon coating
hydrothermal method

UN SDGs

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

Access to Document

10.1021/am501772a

Cite this

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title = "High electrochemical performances of microsphere C-TiO2 anode for sodium-ion battery",

abstract = "High-power, long-life carbon-coated TiO2 microsphere electrodes were synthesized by a hydrothermal method for sodium ion batteries, and the electrochemical properties were evaluated as a function of carbon content. The carbon coating, introduced by sucrose addition, had an effect of suppressing the growth of the TiO2 primary crystallites during calcination. The carbon coated TiO2 (sucrose 20 wt % coated) electrode exhibited excellent cycle retention during 50 cycles (100%) and superior rate capability up to a 30 C rate at room temperature. This cell delivered a high discharge capacity of 155 mAh gcomposite-1 at 0.1 C, 149 mAh g composite-1 at 1 C, and 82.7 mAh g composite-1 at a 10 C rate, respectively.",

keywords = "Na battery, anode, carbon coating, hydrothermal method",

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T1 - High electrochemical performances of microsphere C-TiO2 anode for sodium-ion battery

AU - Oh, Seung Min

AU - Hwang, Jang Yeon

AU - Yoon, C. S.

AU - Lu, Jun

AU - Amine, Khalil

AU - Belharouak, Illias

AU - Sun, Yang Kook

PY - 2014/7/23

Y1 - 2014/7/23

N2 - High-power, long-life carbon-coated TiO2 microsphere electrodes were synthesized by a hydrothermal method for sodium ion batteries, and the electrochemical properties were evaluated as a function of carbon content. The carbon coating, introduced by sucrose addition, had an effect of suppressing the growth of the TiO2 primary crystallites during calcination. The carbon coated TiO2 (sucrose 20 wt % coated) electrode exhibited excellent cycle retention during 50 cycles (100%) and superior rate capability up to a 30 C rate at room temperature. This cell delivered a high discharge capacity of 155 mAh gcomposite-1 at 0.1 C, 149 mAh g composite-1 at 1 C, and 82.7 mAh g composite-1 at a 10 C rate, respectively.

AB - High-power, long-life carbon-coated TiO2 microsphere electrodes were synthesized by a hydrothermal method for sodium ion batteries, and the electrochemical properties were evaluated as a function of carbon content. The carbon coating, introduced by sucrose addition, had an effect of suppressing the growth of the TiO2 primary crystallites during calcination. The carbon coated TiO2 (sucrose 20 wt % coated) electrode exhibited excellent cycle retention during 50 cycles (100%) and superior rate capability up to a 30 C rate at room temperature. This cell delivered a high discharge capacity of 155 mAh gcomposite-1 at 0.1 C, 149 mAh g composite-1 at 1 C, and 82.7 mAh g composite-1 at a 10 C rate, respectively.

KW - Na battery

KW - anode

KW - carbon coating

KW - hydrothermal method

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