Nam Ki Tae, Kim Dong-Wan, Yoo Pil J, Chiang Chung-Yi, Meethong Nonglak, Hammond Paula T, Chiang Yet-Ming, Belcher Angela M
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Science. 2006 May 12;312(5775):885-8. doi: 10.1126/science.1122716. Epub 2006 Apr 6.
The selection and assembly of materials are central issues in the development of smaller, more flexible batteries. Cobalt oxide has shown excellent electrochemical cycling properties and is thus under consideration as an electrode for advanced lithium batteries. We used viruses to synthesize and assemble nanowires of cobalt oxide at room temperature. By incorporating gold-binding peptides into the filament coat, we formed hybrid gold-cobalt oxide wires that improved battery capacity. Combining virus-templated synthesis at the peptide level and methods for controlling two-dimensional assembly of viruses on polyelectrolyte multilayers provides a systematic platform for integrating these nanomaterials to form thin, flexible lithium ion batteries.
材料的选择和组装是更小、更灵活电池发展中的核心问题。氧化钴已显示出优异的电化学循环性能，因此正被考虑用作先进锂电池的电极。我们利用病毒在室温下合成并组装氧化钴纳米线。通过将与金结合的肽掺入丝状衣壳中，我们形成了能提高电池容量的金-氧化钴混合线。在肽水平上结合病毒模板合成与控制病毒在聚电解质多层膜上二维组装的方法，为整合这些纳米材料以形成薄的、柔性锂离子电池提供了一个系统平台。
