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Crab-Shell Biotemplated SnO2 Composite Anodes for Lithium-Ion Batteries

Authors
Son, Seung YeonHong, Seung-AhOh, Seo YeongLee, Young-ChulLee, Go-WoonKang, Jeong WonHuh, Yun SukKim, Il Tae
Issue Date
9월-2018
Publisher
AMER SCIENTIFIC PUBLISHERS
Keywords
Crab Shell; Tin Oxide; Biotemplate; Composites; Anode; Lithium-Ion Batteries
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.18, no.9, pp.6463 - 6468
Indexed
SCIE
Journal Title
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume
18
Number
9
Start Page
6463
End Page
6468
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/73684
DOI
10.1166/jnn.2018.15666
ISSN
1533-4880
Abstract
SnO2 composite materials infiltrated into the hollow carbon channels of a crab-shell biotemplate were hydrothermally synthesized and utilized as anodes for lithium-ion batteries. Varying the reaction temperatures and times of the hydrothermal reaction yielded different SnO2 nanoparticle shapes, characterized by scanning electron microscopy and transmission electron microscopy. The materials prepared at 100 degrees C (sample S100) were spherical, amorphous in nature, and successfully infiltrated into the hollow carbon channels, while those prepared at 180 degrees C (sample S180) yielded many rod-like particles on the outer surfaces of the channels. The S100 electrode exhibited better cyclability, corresponding to a capacity of 298 mAh g(-1) at 100 cycles, and high rate capability with a capacity retention of 54% at 3 A g(-1). The enhanced electrochemical performance of S100 could be attributed to the configuration of the SnO2 particles infiltrating the carbon-coated hollow channels, which accommodated large volume changes during (de)lithiation.
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공과대학 (화공생명공학과)
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