Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Republic of Korea.
ACS Nano. 2009 May 26;3(5):1085-90. doi: 10.1021/nn900062q.
The three-dimensional network of TiO(2) 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.
本研究中，采用原子层沉积法，通过肽组装设计的 TiO(2) 中空纳米带的三维网络被证明是一种很有前途的 Li 二次电池电极。由于(i)纳米带的网络连接良好，(ii)每个纳米带本身的中空结构，纳米带网络确保了电子和 Li 离子的有效传输，电解质中的 Li 离子可以很容易地扩散到其中。纳米网络提高了比容量、倍率性能和循环稳定性，这表明单个中空带状纳米网络的利用可以作为开发高性能 Li 二次电池电极的一种很有前途的策略。
