Electrode Materials for Sodium-Ion Batteries: Considerations on Crystal Structures and Sodium Storage Mechanisms

Abstract

Sodium-ion batteries have been emerging as attractive technologies for large-scale electrical energy storage and conversion, owing to the natural abundance and low cost of sodium resources. However, the development of sodium-ion batteries faces tremendous challenges, which is mainly due to the difficulty to identify appropriate cathode materials and anode materials. In this review, the research progresses on cathode and anode materials for sodium-ion batteries are comprehensively reviewed. We focus on the structural considerations for cathode materials and sodium storage mechanisms for anode materials. With the worldwide effort, high-performance sodium-ion batteries will be fully developed for practical applications.

Keywords

Sodium-ion battery / Cathode material / Anode material / Crystal structure / Sodium storage mechanism / Energy storage

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Funding

Australia Research Council and University of Technology, Sydney (UTS)(DECRA DE170101009)

ARC Discovery Project(DP170100436)

ARENA(2014/RND106)