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Cho, Jaephil
Nano Energy Storage Materials Lab (NESM)
Research Interests
  • Li-ion battery, metal-air battery, redox-flow battery, flexible battery .

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Critical size of a nano SnO2 electrode for Li-secondary battery

Cited 257 times inthomson ciCited 247 times inthomson ci
Title
Critical size of a nano SnO2 electrode for Li-secondary battery
Author
Kim, CNoh, MChoi, MCho, JaephilPark, B
Keywords
Electrodes; Hydrothermal synthesis; Lithium batteries; Tin compounds; Transmission electron microscopy; X ray diffraction analysis
Issue Date
200506
Publisher
AMER CHEMICAL SOC
Citation
CHEMISTRY OF MATERIALS, v.17, no.12, pp.3297 - 3301
Abstract
SnO2 nanoparticles with different sizes of ∼3, ∼4, and ∼8 nm were synthesized using a hydrothermal method at 110, 150, and 200°C, respectively. The results showed that the ∼3 nm-sized SnO 2 nanoparticles had a superior capacity and cycling stability as compared to the ∼4 and ∼8 nm-sized ones. The ∼3 nm-sized nanoparticles exhibited an initial capacity of 740 mAh/g with negligible capacity fading. The electrochemical properties of these nanoparticles were superior to those of thin-film analogues. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) confirmed that the ∼3 nm-sized SnO2 nanoparticles after electrochemical tests did not aggregate into larger Sn clusters, in contrast to those observed with the ∼4 and ∼8 nm-sized ones.
URI
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DOI
http://dx.doi.org/10.1021/cm048003o
ISSN
0897-4756
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