Application of lithium nonafluoro-1-butane sulfonate (nonaflate) based non-aqueous liquid electrolytes (NALE) in lithium-ion batteries

Hirankumar Gurusamy, Sakunthala Ayyasamy, Daries Bella


The non-aqueous electrolyte system comprising of the lithium nonafluoro-1-butane sulfonate (LiNfO) as a potential lithium ion-conducting salt in an equivalent binary mixture of propylene carbonate (PC) and 1, 2-dimethoxyethane (DME) as the solvent was explored for the lithium battery applications. The LiNfO based non-aqueous liquid electrolyte (NALE) system showed the highest ionic conductivity of 2.66 x 10-3 S cm-1 at ambient temperature, and a potential window stability of ~5 V. The lithium ion cells, Li/NALE//LiCoO2 werefabricated with the proposed non-aqueous electrolyte. The cell with particular composition of electrolyte delivered a high specific discharge capacity of 154 mA h g-1 at ambient temperature. The potential advantages of the proposed NALE are discussed in detail.


electrolyte, lithium ionic conductivity, electrochemical properties, impedance spectroscopy

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