Advances in Mn-Based Electrode Materials for Aqueous Sodium-Ion Batteries

• Published in: Nano-micro letters Vol. 15; no. 1; pp. 192 - 42
• Main Authors: Ding, Changsheng, Chen, Zhang, Cao, Chuanxiang, Liu, Yu, Gao, Yanfeng
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 01.12.2023; Springer Nature B.V; SpringerOpen
• Subjects: Anodes; Aqueous electrolytes; Carbon; Composition; Crystal structure; Doping; Electrochemical analysis; Electrochemical performance; Electrode materials; Electrodes; Electrolytes; Energy storage; Engineering; Improvement methods; Low cost; Mn-based electrode materials; Morphology; Na-ion batteries; Nanoscale Science and Technology; Nanotechnology; Nanotechnology and Microengineering; Optimization; Pigments; Polyelectrolytes; Review; Sodium; Sodium-ion batteries; Substitutes; Aqueous electrolytes; Electrochemical performance; Mn-based electrode materials; Improvement methods; Sodium-ion batteries
• ISSN: 2311-6706; 2150-5551; 2150-5551
• DOI: 10.1007/s40820-023-01162-x

Highlights Mn-based electrode materials, including oxides, Prussian blue analogues and polyanion compounds, are introduced systematically for aqueous sodium-ion batteries. The composition, crystal structure, morphology and electrochemical performance of Mn-based electrode materials are reviewed. The improvement methods of electrochemical performance, such as electrolyte optimization, element doping or substitution, morphology optimization and carbon modification, are discussed. Aqueous sodium-ion batteries have attracted extensive attention for large-scale energy storage applications, due to abundant sodium resources, low cost, intrinsic safety of aqueous electrolytes and eco-friendliness. The electrochemical performance of aqueous sodium-ion batteries is affected by the properties of electrode materials and electrolytes. Among various electrode materials, Mn-based electrode materials have attracted tremendous attention because of the abundance of Mn, low cost, nontoxicity, eco-friendliness and interesting electrochemical performance. Aqueous electrolytes having narrow electrochemical window also affect the electrochemical performance of Mn-based electrode materials. In this review, we introduce systematically Mn-based electrode materials for aqueous sodium-ion batteries from cathode and anode materials and offer a comprehensive overview about their recent development. These Mn-based materials include oxides, Prussian blue analogues and polyanion compounds. We summarize and discuss the composition, crystal structure, morphology and electrochemical properties of Mn-based electrode materials. The improvement methods based on electrolyte optimization, element doping or substitution, optimization of morphology and carbon modification are highlighted. The perspectives of Mn-based electrode materials for future studies are also provided. We believe this review is important and helpful to explore and apply Mn-based electrode materials in aqueous sodium-ion batteries.