In Situ Engineering of the Electrode-Electrolyte Interface for Stabilized Overlithiated Cathodes

Chunmei Ban, Tyler Evans, Daniela Piper, Huaxing Sun, Timothy Porcelli, Seul Kim, Sang Han, Yong Choi, Chixia Tian, Dennis Nordlund, Marca Doeff, Sung-Jin Cho, Kyu Oh, Se-Hee Lee

Research output: Contribution to journalArticlepeer-review

22 Scopus Citations

Abstract

The first-ever demonstration of stabilized Si/lithium-manganese-rich full cells, capable of retaining >90% energy over early cycling and >90% capacity over more than 750 cycles at the 1C rate (100% depth-of-discharge), is made through the utilization of a modified ionic liquid electrolyte capable of forming a favorable cathode-electrolyte interface.
Original languageAmerican English
Number of pages7
JournalAdvanced Materials
Volume29
Issue number10
DOIs
StatePublished - 2017

NREL Publication Number

  • NREL/JA-5900-67756

Keywords

  • cathode
  • interfaces
  • ionic liquids
  • Li-ion
  • lithium-manganese-rich

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