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Updated: Jan 28, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
An ethyl methyl sulfone co-solvent eliminates macroscopic morphological instabilities of lithium metal anode
Woochul Shin1, Kang Pyo So, William F Stickle
1Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA. david.ji@oregonstate.edu.
Abstract:
Lithium metal anodes suffer from a short cycle life, and the parasitic reactions of lithium with electrolytes are widely observed. Common sense is to avoid such reactions. Herein, we head in the opposite direction by using an oxidizing co-solvent, ethyl methyl sulfone, in the electrolyte, which addresses the 'dendrite' issue entirely, resulting in a dense and macroscopically smooth surface morphology of the plated lithium. However, a dendrite-free lithium metal anode does not necessarily exhibit a high coulombic efficiency.
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