Electrodeposition of lithium film under dynamic conditions and its application in all-solid-state rechargeable lithium battery

摘要

The morphology of lithium electrodeposited under dynamic conditions from LiPF6/(EC+DMC) solution was observed. The dendritic lithium was effectively suppressed at the current density as high as 2.0 mA cm(-2) under dynamic conditions compared to the electrodeposition at 0.5 mA cm(-2) under static conditions. Impedance measurements were employed to monitor the formation and breaking of surface layers during electrodeposition. The experimental results showed that the interface stability of Li/P(EO)(20)Li(CF3SO2)(2)N-10 wt.% γ-LiAlO2 using electrodeposited lithium film was much better than that using commercial lithium foil, which demonstrated that the electrodeposited lithium was a preferable candidate as anode for all-solid-state lithium battery. © 2005 Elsevier B.V. All rights reserved.