Porous nanofibers comprised of hollow SnO2 nanoplate building blocks for high-performance lithium ion battery anode

Jin Sung Park; Yeon Jong Oh; Jong Hwa Kim; Yun Chan Kang

doi:10.1016/j.matchar.2019.110099

Porous nanofibers comprised of hollow SnO₂ nanoplate building blocks for high-performance lithium ion battery anode

Jin Sung Park, Yeon Jong Oh, Jong Hwa Kim, Yun Chan Kang

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

16 Citations (Scopus)

Abstract

Hollow nanoplates-aggregated SnO₂ nanofibers were fabricated from electrospinning process and two-step heat treatment. Se particles were dissolved in electrospinning solution and played a critical role in the formation of small-sized SnSe nanoplates during the selenization heat treatment. During the oxidation heat treatment, due to the well-known Kirkendall diffusion process, the dense SnSe nanoplates were transformed into hollow SnO₂ nanoplates. Three other SnO₂ nanostructures including SnO₂ hollow nanoplates, hollow nanofiber with hierarchical SnO₂ nanocrystals, and SnO₂ hollow nanofibers were prepared as comparison. The capacity of hollow nanoplate-aggregated SnO₂ nanofibers after the 700th discharge process was 375 mA h g⁻ ¹ when cycled at a high current density of 3 A g⁻ ¹, whereas those of the comparison SnO₂ nanostructured electrodes in the order listed were 78, 277, and 262 mA h g⁻ ¹, respectively. The high structural stability of the synthesized hollow nanoplate-aggregated SnO₂ nanofiber during repeated lithiation and delithiation processes resulted in lithium-ion battery anode with longer cycle life.

Original language	English
Article number	110099
Journal	Materials Characterization
Volume	161
DOIs	https://doi.org/10.1016/j.matchar.2019.110099
Publication status	Published - 2020 Mar

Bibliographical note

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( NRF-2019R1A2C2088047 ).

Publisher Copyright:
© 2020 Elsevier Inc.

Keywords

Anode material
Electrospinning
Kirkendall effect
Lithium ion battery
Nanostructured material
Tin oxide

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

UN SDGs

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

Access to Document

10.1016/j.matchar.2019.110099

Cite this

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title = "Porous nanofibers comprised of hollow SnO2 nanoplate building blocks for high-performance lithium ion battery anode",

abstract = "Hollow nanoplates-aggregated SnO2 nanofibers were fabricated from electrospinning process and two-step heat treatment. Se particles were dissolved in electrospinning solution and played a critical role in the formation of small-sized SnSe nanoplates during the selenization heat treatment. During the oxidation heat treatment, due to the well-known Kirkendall diffusion process, the dense SnSe nanoplates were transformed into hollow SnO2 nanoplates. Three other SnO2 nanostructures including SnO2 hollow nanoplates, hollow nanofiber with hierarchical SnO2 nanocrystals, and SnO2 hollow nanofibers were prepared as comparison. The capacity of hollow nanoplate-aggregated SnO2 nanofibers after the 700th discharge process was 375 mA h g− 1 when cycled at a high current density of 3 A g− 1, whereas those of the comparison SnO2 nanostructured electrodes in the order listed were 78, 277, and 262 mA h g− 1, respectively. The high structural stability of the synthesized hollow nanoplate-aggregated SnO2 nanofiber during repeated lithiation and delithiation processes resulted in lithium-ion battery anode with longer cycle life.",

keywords = "Anode material, Electrospinning, Kirkendall effect, Lithium ion battery, Nanostructured material, Tin oxide",

author = "Park, {Jin Sung} and Oh, {Yeon Jong} and Kim, {Jong Hwa} and Kang, {Yun Chan}",

note = "Funding Information: This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( NRF-2019R1A2C2088047 ). Publisher Copyright: {\textcopyright} 2020 Elsevier Inc.",

year = "2020",

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doi = "10.1016/j.matchar.2019.110099",

language = "English",

volume = "161",

journal = "Materials Characterization",

issn = "1044-5803",

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T1 - Porous nanofibers comprised of hollow SnO2 nanoplate building blocks for high-performance lithium ion battery anode

AU - Park, Jin Sung

AU - Oh, Yeon Jong

AU - Kim, Jong Hwa

AU - Kang, Yun Chan

N1 - Funding Information: This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( NRF-2019R1A2C2088047 ). Publisher Copyright: © 2020 Elsevier Inc.

PY - 2020/3

Y1 - 2020/3

N2 - Hollow nanoplates-aggregated SnO2 nanofibers were fabricated from electrospinning process and two-step heat treatment. Se particles were dissolved in electrospinning solution and played a critical role in the formation of small-sized SnSe nanoplates during the selenization heat treatment. During the oxidation heat treatment, due to the well-known Kirkendall diffusion process, the dense SnSe nanoplates were transformed into hollow SnO2 nanoplates. Three other SnO2 nanostructures including SnO2 hollow nanoplates, hollow nanofiber with hierarchical SnO2 nanocrystals, and SnO2 hollow nanofibers were prepared as comparison. The capacity of hollow nanoplate-aggregated SnO2 nanofibers after the 700th discharge process was 375 mA h g− 1 when cycled at a high current density of 3 A g− 1, whereas those of the comparison SnO2 nanostructured electrodes in the order listed were 78, 277, and 262 mA h g− 1, respectively. The high structural stability of the synthesized hollow nanoplate-aggregated SnO2 nanofiber during repeated lithiation and delithiation processes resulted in lithium-ion battery anode with longer cycle life.

AB - Hollow nanoplates-aggregated SnO2 nanofibers were fabricated from electrospinning process and two-step heat treatment. Se particles were dissolved in electrospinning solution and played a critical role in the formation of small-sized SnSe nanoplates during the selenization heat treatment. During the oxidation heat treatment, due to the well-known Kirkendall diffusion process, the dense SnSe nanoplates were transformed into hollow SnO2 nanoplates. Three other SnO2 nanostructures including SnO2 hollow nanoplates, hollow nanofiber with hierarchical SnO2 nanocrystals, and SnO2 hollow nanofibers were prepared as comparison. The capacity of hollow nanoplate-aggregated SnO2 nanofibers after the 700th discharge process was 375 mA h g− 1 when cycled at a high current density of 3 A g− 1, whereas those of the comparison SnO2 nanostructured electrodes in the order listed were 78, 277, and 262 mA h g− 1, respectively. The high structural stability of the synthesized hollow nanoplate-aggregated SnO2 nanofiber during repeated lithiation and delithiation processes resulted in lithium-ion battery anode with longer cycle life.

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KW - Electrospinning

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