纳米硅电极.pdfVIP

View Online / Journal Homepage / Table of Contents for this issue Dynamic Article Links Energy C Environmental Science Cite this: Energy Environ. Sci., 2011, 4, 56 /ees REVIEW Nanostructured silicon for high capacity lithium battery anodes† Jeannine R. Szczech* and Song Jin* Received 19th July 2010, Accepted 21st October 2010 DOI: 10.1039/c0ee00281j J 1 8 2 0 Nanostructured silicon is promising for high capacity anodes in lithium batteries. The specific capacity of 0 E E silicon is an order of magnitude higher than that of conventional graphite anodes, but the large volume 0 C / change of silicon during lithiation and delithiation and the resulting poor cyclability has prevented its 9 3 0 commercial application. This challenge could potentially be overcome by silicon nanostructures that can 1 . 0 provide facile strain relaxation to prevent electrode pulverization, maintain effective electrical contact, 1 : i o and have the additional benefits of short lithium diffusion distances and enhanced mass transport. In this d | g review, we present an overview of rechargeable lithium batteries and the challenges and opportunities for r o . c silicon anodes, t