A Hierarchical Particle-Shell Architecture for Long-Term Cycle Stability of Li2S Cathodes

Feixiang Wu; Jung Tae Lee; Feifei Fan; Naoki Nitta; Hyea Kim; Ting Zhu; Gleb Yushin

doi:10.1002/adma.201502289

A Hierarchical Particle-Shell Architecture for Long-Term Cycle Stability of Li2S Cathodes

Adv Mater. 2015 Oct 7;27(37):5579-86. doi: 10.1002/adma.201502289. Epub 2015 Aug 25.

Authors

Feixiang Wu¹, Jung Tae Lee¹, Feifei Fan², Naoki Nitta¹, Hyea Kim^{1

3}, Ting Zhu^{1

2}, Gleb Yushin¹

Affiliations

¹ School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
² Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
³ Sila Nanotechnologies, Inc., Alameda, CA, 94501, USA.

PMID: 26305630
DOI: 10.1002/adma.201502289

Abstract

A hierarchical particle-shell architecture for long-term cycle stability of Li2S cathodes is described. Multiscale and multilevel protection prevents mechanical degradation and polysulfide dissolution in lithium-sulfur battery chemistries.

Keywords: conversion; lithium sulfide; mechanical stability; multiscale; sulfur.