A Structural Perspective on Prussian Blue Analogues for Aqueous Zinc‐Ion Batteries

Abstract

Aqueous zinc‐ion batteries (AZIBs), have been identified as one of the most promising aqueous rechargeable metal‐ion batteries (ARMIBs) for grid scale electrochemical energy storage application, and as such have received much attention by virtue of their unique properties including the high abundance of metallic zinc resources, their intrinsic safety, and cost effectiveness. Among the cathode materials used in AZIBs, Prussian Blue Analogues (PBAs) represent the most promising active materials in view of their improved cyclability and rate performance. Here we provide a comprehensive review on recent progress on AZIBs obtained using PBAs cathodes with a particular focus on the present understanding of the structure‐property correlation of different PBAs, which in turn guides further developments of improved cathode materials and optimization strategies to ensure an extended cyclability and capacity retention.

Structural Modification of Partially Ni-substituted MnHCF Cathode Material for Aqueous Zn-ion Batteries

“…Also, the PBA lattice, due to its robust and large 3D channel frameworks, is structurally and dimensionally stable, with almost zero lattice strain [8] towards the insertion and extraction processes [5] . Therefore, PBAs have been widely used as electrode material for Li-ion and post-Li-ion batteries [9][10][11][12][13][14][15][16][17] .…”

Aging Mechanism of Mn-based Prussian Blue Cathode Material by Synchrotron 2D X-ray Fluorescence

“…Also, both metal centers can be (but not necessarily) electroactive [17], which implies to two electron redox capacity, and therefore, two alkali ion storage. Various PBAs have been reported as electrode materials for both Li-ion and post-Li-ion battery systems [18][19][20][21][22][23][24][25][26].…”

Aging Mechanism of Mn-Based Prussian Blue Cathode Material by Synchrotron 2D X-ray Fluorescence

“…Also, both metal centers can be (but are not necessarily) electroactive, which implies they have two electron redox capacity, and therefore two alkali ion storage. Various PBAs have been reported as electrode materials for both Li-ion and post-Li-ion battery systems [17][18][19][20][21][22][23][24].…”