Performance of a Lithium Metal Anode in Poly(vinylidene fluoride)-Type Gel Electrolyte

Abstract

The performance of a lithium metal anode was studied in a poly(vinylidene fluoride‐hexafluoropropylene) (PVdF‐HFP) gel electrolyte. By using the PVdF‐HFP gel electrolyte, we obtained a higher coulombic efficiency (ca. 85%) and a more uniform morphology of the lithium metal anode than those obtained with the propylene carbonate liquid or the poly(ethylene oxide) gel system. Additionally, the addition to the PVdF‐HFP gel system improved both the the uniformity in morphology of the lithium anode and the coulombic efficiency further to ca. 95%. ©1999 The Electrochemical Society