High field multinuclear NMR investigation of the SEI layer in lithium rechargeable batteries

Benjamin M. Meyer, Nicole Leifer, Sarah Sakamoto, Steven G. Greenbaum, Clare P. Grey

Research output: Contribution to journalArticlepeer-review

131 Scopus citations

Abstract

7Li and 19F magic angle spinning nuclear magnetic resonance (NMR) allows for the identification and quantification of LiF in the solid electrolyte interphase (SEI) at both electrodes in lithium-ion rechargeable batteries. An estimate of the percent of lithium not reintercalated into the cathode after numerous cycles is also obtained. In the cells presented, more LiF formed on the surface of the anode compared to its respective cathode. Positive correlations have been established for the amount of LiF formed on the cathode with both the number of cycles and the % Li loss from the cathode.

Original languageEnglish
Pages (from-to)A145-A148
JournalElectrochemical and Solid-State Letters
Volume8
Issue number3
DOIs
StatePublished - 2005
Externally publishedYes

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