Hollow Sn-SnO 2 nanocrystal/graphite composites and their lithium storage properties

Youngmin Lee; Mi Ru Jo; Kyeongse Song; Ki Min Nam; Joon T. Park; Yong Mook Kang

doi:10.1021/am3005237

Hollow Sn-SnO ₂ nanocrystal/graphite composites and their lithium storage properties

Youngmin Lee, Mi Ru Jo, Kyeongse Song, Ki Min Nam, Joon T. Park, Yong Mook Kang

Division of System Semiconductor

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

47 Scopus citations

Abstract

Hollow spheres have been constructed by applying the Kirkendall effect to Sn nanocrystals. This not only accommodates the detrimental volume expansion but also reduces the Li ⁺ transport distance enabling homogeneous Li-Sn alloying. Hollow Sn-SnO ₂ nanocrystals show a significantly enhanced cyclic performance compared to Sn nanocrystal alone due to its typical structure with hollow core. Sn-SnO ₂/graphite nanocomposites obtained by the chemical reduction and oxidation of Sn nanocrystals onto graphite displayed very stable cyclic performance thanks to the role of graphite as an aggregation preventer as well as an electronic conductor.

Original language	English
Pages (from-to)	3459-3464
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	4
Issue number	7
DOIs	https://doi.org/10.1021/am3005237
State	Published - 25 Jul 2012

Keywords

anode
hollow core
Kirkendall effect
lithium rechargeable battery
SnO
volume expansion

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10.1021/am3005237

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title = "Hollow Sn-SnO 2 nanocrystal/graphite composites and their lithium storage properties",

abstract = "Hollow spheres have been constructed by applying the Kirkendall effect to Sn nanocrystals. This not only accommodates the detrimental volume expansion but also reduces the Li + transport distance enabling homogeneous Li-Sn alloying. Hollow Sn-SnO 2 nanocrystals show a significantly enhanced cyclic performance compared to Sn nanocrystal alone due to its typical structure with hollow core. Sn-SnO 2/graphite nanocomposites obtained by the chemical reduction and oxidation of Sn nanocrystals onto graphite displayed very stable cyclic performance thanks to the role of graphite as an aggregation preventer as well as an electronic conductor.",

keywords = "anode, hollow core, Kirkendall effect, lithium rechargeable battery, SnO, volume expansion",

author = "Youngmin Lee and Jo, {Mi Ru} and Kyeongse Song and Nam, {Ki Min} and Park, {Joon T.} and Kang, {Yong Mook}",

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doi = "10.1021/am3005237",

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T1 - Hollow Sn-SnO 2 nanocrystal/graphite composites and their lithium storage properties

AU - Lee, Youngmin

AU - Jo, Mi Ru

AU - Song, Kyeongse

AU - Nam, Ki Min

AU - Park, Joon T.

AU - Kang, Yong Mook

PY - 2012/7/25

Y1 - 2012/7/25

N2 - Hollow spheres have been constructed by applying the Kirkendall effect to Sn nanocrystals. This not only accommodates the detrimental volume expansion but also reduces the Li + transport distance enabling homogeneous Li-Sn alloying. Hollow Sn-SnO 2 nanocrystals show a significantly enhanced cyclic performance compared to Sn nanocrystal alone due to its typical structure with hollow core. Sn-SnO 2/graphite nanocomposites obtained by the chemical reduction and oxidation of Sn nanocrystals onto graphite displayed very stable cyclic performance thanks to the role of graphite as an aggregation preventer as well as an electronic conductor.

AB - Hollow spheres have been constructed by applying the Kirkendall effect to Sn nanocrystals. This not only accommodates the detrimental volume expansion but also reduces the Li + transport distance enabling homogeneous Li-Sn alloying. Hollow Sn-SnO 2 nanocrystals show a significantly enhanced cyclic performance compared to Sn nanocrystal alone due to its typical structure with hollow core. Sn-SnO 2/graphite nanocomposites obtained by the chemical reduction and oxidation of Sn nanocrystals onto graphite displayed very stable cyclic performance thanks to the role of graphite as an aggregation preventer as well as an electronic conductor.

KW - anode

KW - hollow core

KW - Kirkendall effect

KW - lithium rechargeable battery

KW - SnO

KW - volume expansion

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JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 7

ER -

Hollow Sn-SnO ₂ nanocrystal/graphite composites and their lithium storage properties

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Keywords

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