Advances of Metal Oxide Composite Cathodes for Aqueous Zinc‐Ion Batteries

Abstract

Aqueous zinc-ion batteries (AZIBs) lately garner a lot of interest and are viewed as a promising energy storage technology due to their low cost, eco-friendliness, and exceptional safety. Crystal metal oxide cathode research has advanced significantly in recent years, making AZIBs a viable choice for low-cost grid storage applications. However, the readily available (Mn-and V-based oxides) electrode materials suffer from instability and low conductivity. As a consequence, extensive study efforts are dedicated into the development and evaluation of high-performance cathode systems. Herein, advanced composite cathodes with modified structures are reviewed in an attempt to increase capacity and cycle life. The Mn-and V-based composite framework with polymer template, graphene, and MXene induces electric conductivity, improved lattice spacing, and tunable characteristics, as well as possible benefits for overcoming the redox kinetics and stability constraints for AZIBs. As a result, rational modification of the metal oxides as well as the production of composites shows promise in solving problems and improving cathode performance in high-performance AZIBs.

Decoding the manganese-ion storage properties of Na1.25V3O8 nano-rods

“…[11][12][13] In particular, aqueous electrolyte batteries have great potential as stationary battery technology. [14][15][16][17][18][19] Extensive research has been conducted on aqueous ion batteries (AIBs), which involve the use of lithium (Li), sodium (Na), potassium (K), zinc (Zn), and aluminium (Al) for a considerable duration. 20,21 The utilization of an aqueous electrolyte instead of an organic counterpart offers notable benets including heightened ionic conductivity, easy fabrication, low-cost, and eco-friendliness.…”

A study on the synthesis of MoS2/rGO and the investigation of their charge-discharge properties when used as cathode material in a rechargeable Zn-ion battery

“…To date, materials with tunneling or layered structure, including those based on manganese, vanadium, and molybdenum, have been produced and used as cathode materials for rechargeable Zn-ion batteries [11][12]. Recently, two-dimensional transition metal dichalcogenides (TMDs) with layered structure such as molybdenum disulfide (MoS2), which are among the most studied anode materials for Li + /Na + batteries [13][14], have been proven as effective cathode materials for rechargeable Zn-ion batteries [15].…”