title: Carbonized eggshell membrane as a natural polysulfide reservoir for highly reversible Li-S batteries.
abstract: Carbonized sucrose-coated eggshell membranes (CSEMs) consisting of natural micropores function well as a polysulfide reservoir in Li/dissolved polysulfide cells. The bottom CSEM current collector encapsulates the active material, while the upper CSEM inhibitor intercepts the migrating polysulfides. This design with CSEM allows the dissolved polysulfides to be localized and the electrochemical reactions within the cathode region to be stabilized, resulting in high discharge capacity, long-term cycle stability, and high sulfur loading.
authors.affiliation: Electrochemical Energy Laboratory & Materials Science and Engineering Program, The University of Texas at Austin, Austin, TX, 78712, USA.
authors.forename: Sheng-Heng
authors.initials: SH
authors.lastname: Chung
authors.forename: Arumugam
authors.initials: A
authors.lastname: Manthiram
mesh_terms: D000818:Animals; D058266:Dielectric Spectroscopy; D004528:Egg Shell / Q000737:chemistry*; D017097:Electric Impedance; D011211:Electric Power Supplies; D004566:Electrodes; D018020:Lithium Compounds / Q000737:chemistry*; D008422:Materials Testing; D046529:Microscopy, Electron, Transmission; D016062:Porosity; D013395:Sucrose / Q000737:chemistry; D013440:Sulfides / Q000737:chemistry*; D013457:Sulfur Compounds / Q000737:chemistry*
chemical_list: D018020:Lithium Compounds; D013440:Sulfides; D013457:Sulfur Compounds; D013395:Sucrose; C032915:polysulfide
keywords: eggshell membrane; electrochemical performances; electrode architecture; lithium-sulfur batteries; polysulfide