Journal
ACS NANO
Volume 16, Issue 4, Pages 5103-5130Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.2c00265
Keywords
Nanostructure; Room-temperature Na-S batteries; Sodium polysulfide; Adsorption; Electrocatalysis; Kinetic; Carbon; Porous structure; Heterostructure
Categories
Funding
- National Key Research Development Program of China [2019YFB2203400]
- 111 Project [B20030]
- UESTC Shared Research Facilities of Electromagnetic Wave and Matter Interaction [Y0301901290100201]
- Australian Research Council [DP200100365]
- Australian Research Council (ARC) project [FL170100101]
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Room-temperature sodium-sulfur (RT Na-S) batteries are a competitive electrochemical energy storage system. Recent studies have shown that nanostructural designs can address the challenges faced by RT Na-S batteries. This review explores the advancements in nanostructure engineering strategies of S-based cathode materials in the past decade and discusses future prospects.
Room-temperature sodium-sulfur (RT Na-S) batteries are considered to be a competitive electrochemical energy storage system, due to their advantages in abundant natural reserves, inexpensive materials, and superb theoretical energy density. Nevertheless, RT Na-S batteries suffer from a series of critical challenges, especially on the S cathode side, including the insulating nature of S and its discharge products, volumetric fluctuation of S species during the (de)sodiation process, shuttle effect of soluble sodium polysulfides, and sluggish conversion kinetics. Recent studies have shown that nanostructural designs of S-based materials can greatly contribute to alleviating the aforementioned issues via their unique physicochemical properties and architectural features. In this review, we review frontier advancements in nanostructure engineering strategies of S-based cathode materials for RT Na-S batteries in the past decade. Our emphasis is focused on delicate and highly efficient design strategies of material nanostructures as well as interactions of component-structure-property at a nanosize level. We also present our prospects toward further functional engineering and applications of nanostructured S-based materials in RT Na-S batteries and point out some potential developmental directions.
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