title: New insights into the electrode mechanism of lithium sulfur batteries via air-free post-test analysis.
abstract: Effects of the volume expansion and shrinkage of Li2S cathodes on electrochemical cycle life are investigated via post-test analysis without exposure to air. The engineered electrodes that confine volume changes within micro-reactors have significantly longer life than the electrodes without the micro-reactor structure, providing the first unambiguous evidence of the importance of confining volume changes for improved battery performance.
authors.affiliation: Department of Mechanical, Materials and Aerospace Engineering, Illinois Institute of Technology, Chicago, USA. lshaw2@iit.edu and Energy System Division, Argonne National Laboratory, Lemont, USA.
authors.forename: Lin
authors.initials: L
authors.lastname: Chen
authors.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, USA.
authors.forename: Nancy L
authors.initials: NL
authors.lastname: Dietz Rago
authors.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, USA.
authors.forename: Ira D
authors.initials: ID
authors.lastname: Bloom
authors.affiliation: Department of Mechanical, Materials and Aerospace Engineering, Illinois Institute of Technology, Chicago, USA. lshaw2@iit.edu.
authors.forename: Leon L
authors.initials: LL
authors.lastname: Shaw