Facile synthesis of Si/TiO2 (anatase) core-shell nanostructured anodes for rechargeable Li-ion batteries

Yoon Hwa; Won Sik Kim; Byeong Chul Yu; Jae Hun Kim; Seong Hyeon Hong; Hun Joon Sohn

doi:10.1016/j.jelechem.2013.11.023

Facile synthesis of Si/TiO₂ (anatase) core-shell nanostructured anodes for rechargeable Li-ion batteries

Yoon Hwa, Won Sik Kim, Byeong Chul Yu, Jae Hun Kim, Seong Hyeon Hong, Hun Joon Sohn

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

29 Scopus citations

Abstract

A nano-Si/TiO₂ core-shell nanostructured electrode was synthesized using sol-gel method. The TiO₂ shells were made with 10-nm thickness, and were structurally stable upon the intercalation/ deintercalation of Li⁺, improve the cyclability of the Si electrode during cycling. The nano-Si/TiO₂ core-shell nanostructured electrode showed a reversible capacity of ca. 1250 mA h g^-1 over 50 cycles. The reaction mechanism between the nano-Si/TiO₂ core-shell nanostructured electrode and Li was investigated by ex situ analyses.

Original language	English (US)
Pages (from-to)	202-206
Number of pages	5
Journal	Journal of Electroanalytical Chemistry
Volume	712
DOIs	https://doi.org/10.1016/j.jelechem.2013.11.023
State	Published - Jan 1 2014
Externally published	Yes

Keywords

Anatase
Anode
Core-shell structure
Lithium ion battery
Silicon

ASJC Scopus subject areas

Analytical Chemistry
General Chemical Engineering
Electrochemistry

Access to Document

10.1016/j.jelechem.2013.11.023

Cite this

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title = "Facile synthesis of Si/TiO2 (anatase) core-shell nanostructured anodes for rechargeable Li-ion batteries",

abstract = "A nano-Si/TiO2 core-shell nanostructured electrode was synthesized using sol-gel method. The TiO2 shells were made with 10-nm thickness, and were structurally stable upon the intercalation/ deintercalation of Li+, improve the cyclability of the Si electrode during cycling. The nano-Si/TiO2 core-shell nanostructured electrode showed a reversible capacity of ca. 1250 mA h g-1 over 50 cycles. The reaction mechanism between the nano-Si/TiO2 core-shell nanostructured electrode and Li was investigated by ex situ analyses.",

keywords = "Anatase, Anode, Core-shell structure, Lithium ion battery, Silicon",

author = "Yoon Hwa and Kim, {Won Sik} and Yu, {Byeong Chul} and Kim, {Jae Hun} and Hong, {Seong Hyeon} and Sohn, {Hun Joon}",

year = "2014",

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doi = "10.1016/j.jelechem.2013.11.023",

language = "English (US)",

volume = "712",

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journal = "Journal of Electroanalytical Chemistry",

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T1 - Facile synthesis of Si/TiO2 (anatase) core-shell nanostructured anodes for rechargeable Li-ion batteries

AU - Hwa, Yoon

AU - Kim, Won Sik

AU - Yu, Byeong Chul

AU - Kim, Jae Hun

AU - Hong, Seong Hyeon

AU - Sohn, Hun Joon

PY - 2014/1/1

Y1 - 2014/1/1

N2 - A nano-Si/TiO2 core-shell nanostructured electrode was synthesized using sol-gel method. The TiO2 shells were made with 10-nm thickness, and were structurally stable upon the intercalation/ deintercalation of Li+, improve the cyclability of the Si electrode during cycling. The nano-Si/TiO2 core-shell nanostructured electrode showed a reversible capacity of ca. 1250 mA h g-1 over 50 cycles. The reaction mechanism between the nano-Si/TiO2 core-shell nanostructured electrode and Li was investigated by ex situ analyses.

AB - A nano-Si/TiO2 core-shell nanostructured electrode was synthesized using sol-gel method. The TiO2 shells were made with 10-nm thickness, and were structurally stable upon the intercalation/ deintercalation of Li+, improve the cyclability of the Si electrode during cycling. The nano-Si/TiO2 core-shell nanostructured electrode showed a reversible capacity of ca. 1250 mA h g-1 over 50 cycles. The reaction mechanism between the nano-Si/TiO2 core-shell nanostructured electrode and Li was investigated by ex situ analyses.

KW - Anatase

KW - Anode

KW - Core-shell structure

KW - Lithium ion battery

KW - Silicon

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