Engineering hosts for Zn anodes in aqueous Zn-ion batteries

Abstract

This review systematically summarizes the host-design strategies for Zn anodes regarding substrate and interface fabrication, aiming to provide a prospective guideline for developing high-performance Zn anodes.

Copper ions-intercalated manganese dioxide self-supporting mesoporous carbon electrode for aqueous zinc-ion batteries

“…Manganese based oxides, vanadium based oxides, prussian blue analogues, and organic compounds have been extensively studied. [13][14][15][16][17] Among them, manganese oxide has attracted tremendous interest because of its high specific capacity of ~308 mAh g -1 , large operating voltage of ~1.35 V, and low toxicity. Compared with the other phases of MnO 2 (α-, β-, γ-, ε-, λ-MnO2), the layered structure of δ-MnO 2 has a large layer spacing (~0.7 nm), which makes it theoretically more suitable for Zn ion intercalation.…”

Dynamic Molecular Interphases Regulated by Trace Dual Electrolyte Additives for Ultralong‐Lifespan and Dendrite‐Free Zinc Metal Anode

“…[36,37] Despite judicious structure design and surface alloying effectively mitigate Zn dendrite formation by making use of high specific surface area and zincophilicity to facilitate Zn nucleation and growth, there unavoidably occur side reactions at the electroactive surface to lower Zn stripping/plating CE and continuously deplete electrolyte. [38,39] Whereas the protective layers or ASEI layers can protect the active Zn from the direct attack of bulk electrolyte to effectively inhibit side reactions for a high CE, they no matter in inert metals, [40,41] polymers [42][43][44] or inorganic compounds [45][46][47] usually suffer from poor adhesion and low Zn 2 + ion transport kinetics, which lead to high voltage polarizations during the Zn stripping/plating processes. [48] Furthermore, these strategies relevant to anode materials generally involve cumbersome and high-cost preparation processes, substantially impeding scalable and practical implementation.…”

Nanocarbon armor reinforced Ag particles to build a high-rate and long-lifespan aqueous Zn2+/Cl− dual-ion battery

“…[1][2][3][4][5][6] Among these battery systems, aqueous zinc-ion batteries (AZIBs) have attracted tremendous attention due to their high theoretical energy density and cost-effectiveness. [7][8][9][10][11][12][13] As one class of AZIBs, alkaline Zn-Ag batteries have been successfully commercialized as primary batteries because of their exceptional energy density. [14][15][16] However, when used as secondary batteries, some serious problems occur and impede their commercialization.…”