Huang, Xia Polyethylenimine Expanded Graphite Oxide Enables High Sulfur Loading and Long-Term Stability of Lithium-Sulfur Batteries. [electronic resource] - Small (Weinheim an der Bergstrasse, Germany) Jul 2019 - e1804578 p. digital Publication Type: Journal Article ISSN: 1613-6829 Standard No.: 10.1002/smll.201804578 doi