Current trends and future challenges of electrolytes for sodium-ion batteries
Journal article, 2016

Research and development efforts on sodium-ion batteries are gaining momentum due to their potential to accommodate high energy density coupled with relatively lower cost in comparison with lithium-ion batteries. In order for the sodium-ion batteries to be commercially viable, high performance electrolytes with acceptable ambient temperature ionic conductivity and wider electrochemical stability windows are being developed. A bibliometric analysis of the publications on various types of Na+ ion conducting electrolytes since 1990 shows a total of 200 + publications and reveals an exponential growth in the last few years, due to reasons that the sodium-ion systems promise great potential as the future large scale power sources for variety of applications. This review consolidates the status of liquid (non-aqueous, aqueous and ionic), polymer gel and solid (ceramics, glasses, and solid polymers) electrolytes and discusses their ionic conductivity, thermal characteristics, electrochemical stability and viscosity towards applications in sodium-ion batteries. Among various types available, the non-aqueous solvent based electrolyte is the most promising one in terms of ionic conductivity even though it is flammable.

Ionic conductivity

Polymer electrolytes

Ceramic electrolytes

Liquid electrolytes

Sodium ion batteries

Ionic liquids


K. Vignarooban

University of Jaffna

R. Kushagra

Arizona State University

A. Elango

Arizona State University

P. Badami

Arizona State University

Bengt-Erik Mellander

Chalmers, Physics, Subatomic and Plasma Physics

X. Xu

University of Arizona

T. G. Tucker

U.S. Battery Bike Co. LLC

C. Nam

Arizona State University

A. M. Kannan

Arizona State University

International Journal of Hydrogen Energy

0360-3199 (ISSN)

Vol. 41 4 2829-2846

Subject Categories

Energy Engineering

Materials Chemistry

Other Physics Topics



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4/6/2022 9