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Jung, Yoon Seok
Electrochemical Solid-State Energy Storage Lab
Research Interests
  • Batteries, All-solid-state batteries, solid electrolytes, electrodes, atomic layer deposition,energy storage devices

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Synthesis of tin-encapsulated spherical hollow carbon for anode material in lithium secondary batteries

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Title
Synthesis of tin-encapsulated spherical hollow carbon for anode material in lithium secondary batteries
Author
Lee, Kyu TaeJung, Yoon SeokOh, SM
Keywords
ION BATTERIES; IRREVERSIBLE CAPACITY; ELECTRODES; GRAPHITE; OXIDE; INSERTION; GLASSES; ALLOYS
Issue Date
2003-05
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.125, no.19, pp.5652 - 5653
Abstract
The tributylphenyltin (TBPT)-encapsulated resorcinol (R)-formaldehyde (F) sol was prepared inside the micelles of cetyltrimethylammonium bromide (CTAB). This core-shell-type sol was polymerized and further carbonized to obtain nanosized Sn-encapsulated spherical hollow carbon. The size of spherical hollow carbon and Sn metal particles was controllable by changing the R/CTAB or TBPT/CTAB mole ratio, respectively. It is likely that, when tested as the anode in Li secondary batteries, the spherical hollow carbon acts as a barrier to prevent the aggregation of nanosized Sn particles and provides a void space for Sn metal particles to experience a volume change without a collapse of carbon shell, giving rise to a better cycle performance than that of pure Sn metal.
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DOI
10.1021/ja0345524
ISSN
0002-7863
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ECHE_Journal Papers
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