Nanostructured Electrodes and the Low-Temperature Performance of Li-Ion Batteries


  • This work was supported by the Department of Energy and the Office of Naval Research. Electron micrographs were imaged with the instrumentation of The Electron Microscopy Core Laboratory, Biotechnology Program, University of Florida. Supporting Information is available online from Wiley InterScience or from the authors.


original image

Template-synthesized V2O5 nanostructured electrodes (see Figure and cover) are used as tools for fundamental investigations into the poor low-temperature performance of Li-ion batteries. The electrodes consisted of nanofibers of V2O5, and by controlling the dimensions of the nanofibers it has been determined that the rate-limiting factor at low temperatures is the concentration polarization of the Li ion in the electrode material.