Eriko Ishiko

Behavior of interfacial resistance at lithium electrode for gel electrolyte using novel three-dimensional network polymer host

Abstract A novel macromonomer based on tri-functional poly (alkylene oxide) main chain with acrylate chain ends was specially designed and synthesized for gel electrolyte purpose. Various kinds of gel electrolyte, based on the crosslinked macromonomer, were prepared. Interfacial resistance between lithium electrodes and the gel electrolytes was measured. The significant decrease in interfacial resistance was observed during 4–6 h after assembling the cell. The discharge capacity of secondary cells with the gel electrolyte depended on the kind of liquid electrolyte incorporated in the gel electrolyte.

Novel gel polymer electrolytes based on alkylene oxide macromonomer

A novel gel polymer electrolyte, based on alkylene oxide macromonomer, was specially designed and synthesized for gel electrolyte purpose. A tri-functional macromonomer having a molecular weight of 8000 revealed to be the best candidate for preparing the gel electrolyte from the mechanical property aspect. The liquid retention ability of the cross-linked network polymer prepared from the above macromonomer was explored. It was confirmed that the polymer network based on the macromonomer retained a large amount of liquid electrolyte over 80 wt.% in stable state.