A Soft Approach to Encapsulate Sulfur: Polyaniline Nanotubes for Lithium-Sulfur Batteries with Long Cycle Life Xiao, Lifen ; Cao, Yuliang ; Xiao, Jie ; Schwenzer, Birgit ; Engelhard, Mark H. ; Saraf, Laxmikant V. ; Nie, Zimin ; Exarhos, Gregory J. ; Liu, Jun Abstract Publication: Advanced Materials Pub Date: March 2012 DOI: 10.1002/adma.201103392 Bibcode: 2012AdM....24.1176X