Journal
ACS NANO
Volume 3, Issue 5, Pages 1085-1090Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn900062q
Keywords
Li secondary battery; 3-d nanostructure; TiO2; biotemplating; ALD
Categories
Funding
- WCU [31-2008-000-10055-0]
- General Research Grant program [R01-2008-000-10913-0]
- National Research Laboratory Program [R0A-2008-000-20057-0]
- Center for Nanoscale Mechatronics Manufacturing [08K1401-01010]
- Korea Science and Engineering Foundation (KOSEF)
- Ministry of Education, Science and Technology (MEST)
- Korean Government (MEST) [KRF-2008-331-D00243]
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The three-dimensional network of TiO2 hollow nanoribbons designed from a peptide assembly using atomic layer deposition is demonstrated as a promising Li secondary battery electrode in this study. The nanoribbon network ensures effective transport of electrons and Li ions due to (i) a well-connected network of nanoribbons and (ii) the hollow structure of each nanoribbon itself, into which Li ions in the electrolyte can readily diffuse. The improved specific capacity, rate capability, and cyclability of the nanonetwork show that the utilization of a nanonetwork of individual hollow ribbons can serve as a promising strategy toward the development of high-performance electrode for Li secondary batteries.
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