Reversible storage of Li-ion in nano-Si/SnO2 core-shell nanostructured electrode

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

doi:10.1039/c3ta01310c

Reversible storage of Li-ion in nano-Si/SnO₂ core-shell nanostructured electrode

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

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

33 Scopus citations

Abstract

A core-shell nanostructured composite material consisting of nano-Si as the core and SnO₂ as the shell is synthesized by a sol-gel method. The reaction mechanism between Li and a nano-Si/SnO₂ core-shell nanostructured electrode is investigated, the partial reversible reaction between Li and SnO₂ during the first cycle is identified, and the reactivity of the Si core is investigated by ex situ analyses. The nano-Si/SnO₂ core-shell nanostructured electrode shows a reversible capacity of ca. 1000 mA h g^-1 and good cycle retention close to 80% of the first charge capacity over 50 cycles.

Original language	English (US)
Pages (from-to)	3733-3738
Number of pages	6
Journal	Journal of Materials Chemistry A
Volume	1
Issue number	11
DOIs	https://doi.org/10.1039/c3ta01310c
State	Published - Mar 21 2013
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Renewable Energy, Sustainability and the Environment
Materials Science(all)

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title = "Reversible storage of Li-ion in nano-Si/SnO2 core-shell nanostructured electrode",

abstract = "A core-shell nanostructured composite material consisting of nano-Si as the core and SnO2 as the shell is synthesized by a sol-gel method. The reaction mechanism between Li and a nano-Si/SnO2 core-shell nanostructured electrode is investigated, the partial reversible reaction between Li and SnO2 during the first cycle is identified, and the reactivity of the Si core is investigated by ex situ analyses. The nano-Si/SnO2 core-shell nanostructured electrode shows a reversible capacity of ca. 1000 mA h g-1 and good cycle retention close to 80% of the first charge capacity over 50 cycles.",

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T1 - Reversible storage of Li-ion in nano-Si/SnO2 core-shell nanostructured electrode

AU - Hwa, Yoon

AU - Kim, Won Sik

AU - Yu, Byeong Chul

AU - Kim, Hansu

AU - Hong, Seong Hyeon

AU - Sohn, Hun Joon

PY - 2013/3/21

Y1 - 2013/3/21

N2 - A core-shell nanostructured composite material consisting of nano-Si as the core and SnO2 as the shell is synthesized by a sol-gel method. The reaction mechanism between Li and a nano-Si/SnO2 core-shell nanostructured electrode is investigated, the partial reversible reaction between Li and SnO2 during the first cycle is identified, and the reactivity of the Si core is investigated by ex situ analyses. The nano-Si/SnO2 core-shell nanostructured electrode shows a reversible capacity of ca. 1000 mA h g-1 and good cycle retention close to 80% of the first charge capacity over 50 cycles.

AB - A core-shell nanostructured composite material consisting of nano-Si as the core and SnO2 as the shell is synthesized by a sol-gel method. The reaction mechanism between Li and a nano-Si/SnO2 core-shell nanostructured electrode is investigated, the partial reversible reaction between Li and SnO2 during the first cycle is identified, and the reactivity of the Si core is investigated by ex situ analyses. The nano-Si/SnO2 core-shell nanostructured electrode shows a reversible capacity of ca. 1000 mA h g-1 and good cycle retention close to 80% of the first charge capacity over 50 cycles.

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Reversible storage of Li-ion in nano-Si/SnO₂ core-shell nanostructured electrode

Abstract

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