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Author

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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SnO2 filled mesoporous tin phosphate - High capacity negative electrode for lithium secondary battery

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Title
SnO2 filled mesoporous tin phosphate - High capacity negative electrode for lithium secondary battery
Author
Kim, JinyoungCho, Jaephil
Keywords
Mesopores; Pore wall; Tin melt; Tin phosphate
Issue Date
200608
Publisher
ELECTROCHEMICAL SOC INC
Citation
ELECTROCHEMICAL AND SOLID STATE LETTERS, v.9, no.8, pp.A373 - A375
Abstract
Sn O2 filled mesoporous tin phosphate was prepared by impregnating an Sn melt into the mesopores of hexagonal mesoporous tin phosphate with a pore size of 3 nm at 300°C under vacuum. Although Sn was oxidized to Sn O2 via a reaction with the oxygen ions consisting of one of tin phosphate pore wall frameworks at 300°C, the pore wall material remained amorphous without showing any other phases. The electrochemical results revealed significant improvement of the reversible capacity to 805 from 400 mAhg after the mesopores were filled with Sn O2. This was because the Sn O2 not only added capacity but also decreased high BET surface area of the mesoporous tin phosphate that caused the large irreversible capacity.
URI
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DOI
http://dx.doi.org/10.1149/1.2205119
ISSN
1099-0062
Appears in Collections:
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