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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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Spinel Li4Ti5O12 nanowires for high-rate Li-ion intercalation electrode

Cited 74 times inthomson ciCited 85 times inthomson ci
Title
Spinel Li4Ti5O12 nanowires for high-rate Li-ion intercalation electrode
Author
Kim, JinyoungCho, Jaephil
Keywords
Brunauer-Emmett-Teller (BET); Discharge capacity; Intercalation electrode; Nanowires
Issue Date
2007
Publisher
ELECTROCHEMICAL SOC INC
Citation
ELECTROCHEMICAL AND SOLID STATE LETTERS, v.10, no.3, pp.A81 - A84
Abstract
A large quantity of spinel Li4 Ti5 O12 nanowires was prepared by firing a mixture of Ti O2 1.25 H2 O nanowires and Li acetates at 800°C for 3 h. The spinel nanowire had a diameter of 150 nm, which was similar to that of Ti O2 H2 O nanowire. The Brunauer-Emmett-Teller (BET) surface area of the spinel wire was 38 m2 g, which was seven times higher than that of fine particles, which had a BET surface area of only 4.6 m2 g. The first discharge capacity was 165 mAhg at a 0.1 C rate and 93% capacity was retained even after a 10 C rate. We believe that these results were associated with a more active surface in the nanowires which facilitated faster lithium diffusion due to shorter pathways.
URI
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DOI
http://dx.doi.org/10.1149/1.2431242
ISSN
1099-0062
Appears in Collections:
ECHE_Journal Papers

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