Electron transmission matrix and anion regulation strategy-derived oxygen-deficient δ-MnO₂ for a high-rate and long-life aqueous zinc-ion battery

Abstract

Ion migration and electron transmission are vital for manganese dioxides in zinc ion batteries. δ-MnO2 is believed to be more suitable for zinc ion storage due to its layered structure....

From atomic modification to structure engineering: layered NiCo–MnO2 with ultrafast kinetics and optimized stress distribution for aqueous zinc ion storage

“…S13 †) featured two peaks at 544.2 cm −1 and 637.6 cm −1 , corresponding to the n 3 and n 2 vibrations of the Mn-O bonds. 12,41,42 Additionally, the nitrogen adsorptiondesorption isotherms of the NCMO and MO samples were constructed (Fig. S14 †).…”

“…[6][7][8][9] To obtain more competitive ZIBs, using suitable cathode materials with outstanding capacity and stability is vital. Mn-based materials, [10][11][12] Prussian blue analogs (PBAs), [13][14][15] V-based materials, [16][17][18][19][20] and organic-based materials [21][22][23] are promising cathode materials for ZIBs.…”

Overcoming Challenges: Extending Cycle Life of Aqueous Zinc‐Ion Batteries at High Zinc Utilization through a Synergistic Strategy

“…We further assembled pouch cell to validate the feasibility of this synergistic strategy. [32] The specific parameters of the pouch cell are shown in Figure 5d. The results still exhibit the same regularity as the coin cell, namely elevated specific capacity and higher capacity retention of MnO 2 //Zn@Cu with gln full cell (Figure 5e).…”

Unveiling the multifunctional regulation effect of a glutamine additive for highly reversible Zn metal anodes

“…Aqueous zinc-ion batteries (AZIBs) have garnered substantial attention as promising candidates for future energy storage applications, attracting significant scientific and industrial interest, owing to their economic viability and inherent safety considerations. 1–5 Zinc metal emerges as an optimal anode material for AZIBs, primarily attributed to its noteworthy theoretical capacity (820 mA h g −1 ) and a favorable electrochemical potential (−0.76 V vs. Standard Hydrogen Electrode, SHE). Nevertheless, the severe and uncontrollable hydrogen evolution reaction (HER), corrosion progress, and dendrite growth lead to the fast degradation of stability and reversibility upon repeated charge/discharge cycles.…”