Elevated temperature performance of high voltage Li1+yMn1.5Ni0.5O4−xFx spinel in window-shifted Li-ion cells

Nathalie Pereira, Michael C. Ruotolo, Matthew Y. Lu, Fadwa Badway, Glenn G. Amatucci

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Although the LiMn1.5Ni0.5O4 spinel operating at 4.7 V presents some beneficial characteristics over more traditional positive electrode materials, instability issues at elevated temperature have limited its practical use so far. While we previously proposed Li1+yMn1.5Ni0.5O4−xFx (LMNOF) spinel that is intrinsically stable at elevated temperatures in Li-excess half-cell configuration, we investigate herein fixed, non-excess Li-content window-shifted Li-ion systems. By utilizing Li4Ti5O12 (LTO) or TiS2 negative electrodes stable in broad electrolyte compositions instead of carbonaceous electrodes, we aim at limiting the Li-consuming side reactions such as the formation of solid-electrolyte interphase and enable a focus on the exploration of electrolyte compositions including additives. Utilizing such an approach, excellent fundamental stability of LMNOF in a fixed Li-content Li-ion environment is demonstrated at 55 °C with the use of relatively common electrolyte components.

Original languageEnglish (US)
Pages (from-to)145-154
Number of pages10
JournalJournal of Power Sources
StatePublished - Jan 15 2017

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


  • High voltage cathode spinel
  • High-temperature cycling stability
  • Li-ion
  • Lithium titanate
  • Titanium disulfide
  • Window-shifted systems


Dive into the research topics of 'Elevated temperature performance of high voltage Li1+yMn1.5Ni0.5O4−xFx spinel in window-shifted Li-ion cells'. Together they form a unique fingerprint.

Cite this