title: A dual-functional polymer coating on a lithium anode for suppressing dendrite growth and polysulfide shuttling in Li-S batteries.
abstract: A surface coating that simultaneously suppressed Li dendrite growth and polysulfide shuttling on a lithium anode was successfully developed using a polymer blend composed of Nafion® and polyvinylidene difluoride (PVDF). This hierarchically nanostructured composite coating efficiently alleviated the swelling and dissolution problems of cation-selective Nafion® in the electrolyte and provided sufficient mechanical strength to accommodate large volumetric variations in the Li anode during charge-discharge cycles. The Nafion®/PVDF-coated Li anode exhibited substantially enhanced rate performance and cyclability as well as improved Coulombic efficiency for Li-S prototype batteries with a high-S-content cathode.
authors.affiliation: Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan. nlw001@ntu.edu.tw.
authors.forename: Jing
authors.initials: J
authors.lastname: Luo
authors.forename: Rung-Chuan
authors.initials: RC
authors.lastname: Lee
authors.forename: Jian-Ting
authors.initials: JT
authors.lastname: Jin
authors.forename: Yu-Ting
authors.initials: YT
authors.lastname: Weng
authors.forename: Chia-Chen
authors.initials: CC
authors.lastname: Fang
authors.forename: Nae-Lih
authors.initials: NL
authors.lastname: Wu