Toward Rational Composite Electrodes for Improved Li Batteries

1 Results Although electrodes for lithium batteries are generally prepared with standard formulations and routine processing conditions,more and more studies report relationships between processing conditions,composite electrode morphology and electrochemical performance.In our previous work,we obtained a 50% increase of the cycling capacity of Li1.1V3O8 based electrodes after using a PEO binder which had been pre-plasticized by the solvent (ethylene carbonate (EC) propylene carbonate (PC)) of the liquid electrolyte or by the liquid electrolyte itself (EC PC LiTFSI) during the fabrication step of the composite electrode1-2].In this study,we generalize the pre-plasticization effect of the binder with EC PC to another binder of interest for the positive electrode of advanced lithium batteries,PMMA,and we study the origin of such an unexpected phenomenon3-4].