Fluorinated Electrolytes for 5-V Li-Ion Chemistry: Synthesis and Evaluation of an Additive for High-Voltage LiNi0.5Mn1.5O4/Graphite Cell

A fluorinated carbonate compound was identified as an electrolyte additive capable of stabilizing the new fluorinated electrolyte/electrode interphase in a high-voltage spinel LiNi0.5Mn1.5O4/graphite cell. The synthesis and characterization of the additive are described, and the electrochemical perf...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 2014-01, Vol.161 (12), p.A1777-A1781
Main Authors: Hu, Libo, Xue, Zheng, Amine, Khalil, Zhang, Zhengcheng
Format: Article
Language:English
Online Access:Get full text
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Summary:A fluorinated carbonate compound was identified as an electrolyte additive capable of stabilizing the new fluorinated electrolyte/electrode interphase in a high-voltage spinel LiNi0.5Mn1.5O4/graphite cell. The synthesis and characterization of the additive are described, and the electrochemical performance and post-analysis using scanning electron microscopy and energy dispersive X-ray spectrometry revealed that this additive actively participates in passivation formation on the graphite anode, making it an effective additive for enabling all-fluorinated electrolytes supporting reversible Li+ intercalation chemistry in a LiNi0.5Mn1.5O4/graphite cell at elevated temperature.
ISSN:0013-4651
DOI:10.1149/2.0141412jes