This work developed the feasibility of quasi-eutectic electrolytes (QEEs) in zinc–manganese batteries, in which the optimization of ion solvation structure and Stern layer composition modulates the mass transfer and charge transfer at the cathode interface.
Therefore, refining the regulation of electrochemical processes at the interface into the regulation of mass transfer and charge transfer is an effective and feasible idea. Aqueous zinc–manganese batteries (ZMBs) are increasingly being favored as a safe and environmentally-friendly battery candidate [6–14].
Zn metal anode inevitably suffers from the dendrite growth, hydrogen evolution reaction, and surface passivation in aqueous zinc ion batteries (AZIBs), which have significantly compromised the electrochemical behavior of electrodes and hampered AZIBs from being further employed in energy storage system (ESS).
Afterward, the protection strategies for Zn metal anodes will be analyzed in detail form four perspectives, mainly focusing on the compatibility of these strategies with cathodes and the promotion of full cells: 1) artificial and in situ interface engineering; 2) structural and constitution design; 3) electrolyte optimization; 4) novel separators.
They proved that the introduction of a slightly acidic electrolyte could markedly weaken the passivation effect of Zn metal, greatly improving the anode reversibility and thereby enabling the enhanced cycling stability of the battery.
Zn utilization was obscured in most previous reports, although it is a crucial parameter in experiments especially for boosting the actual commercialization of aqueous zinc ion batteries. The reason for the importance of Zn utilization is due to its tight connection to the energy density of the battery (E).
Basics and Advances of Manganese‐Based Cathode …
This review summarizes the recent achievements in manganese oxides with different polymorphs and nanostructures as potential cathode materials for aqueous zinc-ion batteries (ZIBs). In particular, various …
Learn More
Recent Advances in Aqueous Zn||MnO 2 Batteries
Recently, rechargeable aqueous zinc-based batteries using manganese oxide as the cathode (e.g., MnO 2) have gained attention due to their inherent safety, environmental friendliness, and low cost.
Learn More
Interfacial engineering of manganese-based oxides for aqueous zinc …
It was also confirmed that the SHP additive can create in situ a solid electrolyte interface layer (SEI) consisting of Zn 3 (PO 4) 2 4H 2 O on the Zn negative electrode to avoid the aggravation of zinc dendrites and parasitic reactions on the zinc surface.
Learn More
Interfacial engineering of manganese-based oxides for aqueous …
It not only avoids the laborious zinc electrode protection engineering, but also reduces the ... which provides a novel idea to explore one new type of aqueous zinc-manganese batteries [90]. The MnO 2 /Mn 2+ deposition/dissolution mechanism was a typical binary solid-liquid transition reaction. Not only Mn 2+ and H + ions are involved in the battery reaction at …
Learn More
Unveiling Organic Electrode Materials in Aqueous Zinc-Ion …
The output voltage, a critical determinant of battery energy density, is primarily dictated by the characteristics of electrode materials and electrolytes. The redox reactions involving pyrazine structural units exhibit multiple peak formations between 0.6 and 1 V, whereas quinone units predominantly peak near 1 V. As a result, conventional n-type materials, in …
Learn More
Rechargeable aqueous zinc-manganese dioxide batteries with …
Based on this electrode mechanism, we formulate an aqueous zinc/manganese triflate electrolyte that enables the formation of a protective porous manganese oxide layer. The cathode exhibits...
Learn More
Biological ion channel inspired interfacial protection layer for high ...
The protective layer of the zinc negative electrode is spin-coated onto the surface of the zinc foil by mixing ZIF@Crown and PVDF in a certain ratio, digital photographs of the negative electrode before and after coating are shown in Fig. S2, and coating color is off-white.
Learn More
Electrodeposited Ionomer Protection Layer for Negative …
The Zn–air battery performances were investigated by cycling tests in 6 M KOH containing 0.2 M ZnO in two-electrode configuration with a platinum counter electrode; the alkaline solution was saturated with oxygen by O 2 gas bubbling at 0.2 L/min. A galvanostatic method was applied with constant current of 0.5 mA for charge and discharge ...
Learn More
A high specific capacity aqueous zinc-manganese battery with …
Aqueous zinc-manganese dioxide batteries (Zn-MnO2) are gaining considerable research attention for energy storage taking advantages of their low cost and high safety. Polymorphic MnO2 (α, β, γ, δ, λ, and amorphous) has been extensively studied, but reports of akhtenskite MnO2 (ε-MnO2) are limited and the performance of ε-MnO2-based ZIBs existing is …
Learn More
Reconstructing interfacial manganese deposition for durable …
This work developed the feasibility of quasi-eutectic electrolytes (QEEs) in zinc–manganese batteries, in which the optimization of ion solvation structure and Stern layer …
Learn More
A highly reversible neutral zinc/manganese battery for stationary ...
Combined with excellent electrochemical reversibility, low cost and two-electron transfer properties, the Zn–Mn battery can be a very promising candidate for large …
Learn More
Recent research on aqueous zinc-ion batteries and progress in ...
During battery charging and discharging, dendrites, hydrogen precipitation reaction, and electrochemical corrosion can interact with each other [7, 14]. The formation of dendrites increases the negative electrode''s surface area, accelerating the rate of hydrogen precipitation and generating more OH −. This, in turn, accelerates the electrode ...
Learn More
Reconstructing interfacial manganese deposition for durable …
This work developed the feasibility of quasi-eutectic electrolytes (QEEs) in zinc–manganese batteries, in which the optimization of ion solvation structure and Stern layer composition modulates the mass transfer and charge transfer at the cathode interface.
Learn More
Manganese-Based Oxide Cathode Materials for …
Due to their cost-effectiveness, environmental friendliness, good safety, and relatively high capacity, aqueous zinc-ion batteries are promising for practical applications in large-scale energy storage. Based on the features of …
Learn More
Biological ion channel inspired interfacial protection layer for high ...
The protective layer of the zinc negative electrode is spin-coated onto the surface of the zinc foil by mixing ZIF@Crown and PVDF in a certain ratio, digital photographs of the …
Learn More
From anode to cell: synergistic protection strategies and …
In fact, if an artificial protective layer could be employed to synergistically protect the cathodes and anodes, the effect would be different. Zhou et al. used the kaolin-coated zinc …
Learn More
Rechargeable aqueous zinc-manganese dioxide batteries with
Based on this electrode mechanism, we formulate an aqueous zinc/manganese triflate electrolyte that enables the formation of a protective porous manganese oxide layer. …
Learn More
Boosting zinc–manganese battery longevity: Fortifying zinc anodes …
Experimental and theoretical analyses confirm that GSH not only modulates the solvation structure of Zn2+ to accelerate its desolvation process on the zinc surface but also …
Learn More
Manganese-based cathode materials for aqueous rechargeable …
First, H + from the solution was inserted into α-MnO 2 to enrich OH −, and [Zn(OH) 2] 3 ZnSO 4 ·5H 2 O was formed at the negative electrode. Then there is the insertion of Zn 2+ at the cathode, forming ZnMn 2 O 4, and the reversibility of H + insertion is found to be better than that of Zn 2+, which may be one of the reasons for the poor cycling stability …
Learn More
Basics and Advances of Manganese‐Based Cathode Materials for …
This review summarizes the recent achievements in manganese oxides with different polymorphs and nanostructures as potential cathode materials for aqueous zinc-ion batteries (ZIBs). In particular, various strategies, including phase/defect engineering, element doping, and coupling with carbon materials or conducting polymers, are summarized and ...
Learn More
Recent Advances in Aqueous Zn||MnO 2 Batteries
Recently, rechargeable aqueous zinc-based batteries using manganese oxide as the cathode (e.g., MnO 2) have gained attention due to their inherent safety, environmental …
Learn More
Manganese-Based Oxide Cathode Materials for Aqueous Zinc-Ion Batteries …
Due to their cost-effectiveness, environmental friendliness, good safety, and relatively high capacity, aqueous zinc-ion batteries are promising for practical applications in large-scale energy storage. Based on the features of Mn-based oxide cathode materials, this paper has outlined the development history and research progress of Mn-based ...
Learn More
Stable and low-voltage-hysteresis zinc negative electrode …
Additionally, the Zn-graphite full battery based on Zn as negative electrode and flake graphite as positive electrode delivers stable discharge capacity of 81.1 mAh g −1 over 300 cycles. The results in this work open an effective approach for constructing corrosion-resistant, low-voltage-hysteresis and stable negative electrode, further indicating that Zn is great …
Learn More
Corrosion attenuation of zinc electrode in Zn−MnO2 battery
In this paper, we report on the electrochemical behavior of zinc (Zn) anode in Zn–MnO2 battery tested in aqueous NH4Cl electrolyte with a concentration ranging from 0.01 to 1 M without any additives. The Zn electrode shows the lowest corrosion behavior for the 0.1 M concentration. Such corrosion decrease was attributed to a shielding effect due to the …
Learn More
