Li‐Ion Batteries: Understanding the Outstanding High‐Voltage Performance of NCM523||Graphite Lithium Ion Cells after Elimination of Ethylene Carbonate Solvent from Conventional Electrolyte (Adv. Energy Mater. 14/2021). Issue 14 (15th April 2021)

• Record Type: Journal Article
• Authors: Klein, Sven; van Wickeren, Stefan; Röser, Stephan; Bärmann, Peer; Borzutzki, Kristina; Heidrich, Bastian; Börner, Markus; Winter, Martin; Placke, Tobias; Kasnatscheew, Johannes
• Is Part Of: Advanced energy materials. Volume 11:Issue 14(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-04-15
• Subjects: conventional electrolytes -- ethylene carbonate‐free -- high voltage -- Li ion batteries -- rollover fading; Energy harvesting -- Materials -- Periodicals; Energy conversion -- Materials -- Periodicals; Energy storage -- Materials -- Periodicals; Photovoltaics -- Periodicals; Fuel cells -- Periodicals; Thermoelectric materials -- Periodicals; 621.31
• DOI: 10.1002/aenm.202170053
• Languages: English
• ISSNs: 1614-6832

Abstract

Abstract : In article number 2003738, Martin Winter, Tobias Placke, Johannes Kasnatscheew and co‐workers report that a simple elimination of ethylene carbonate (EC) from conventional electrolytes counterintuitively boosts the high voltage performance in Li‐ion batteries. It is attributed to the beneficially formed Li x PO y F z ‐species, which can scavenge the hazardous transition metals (Ni, Co, Mn) dissolved from NCM cathodes.