Recent Advances in Aqueous Zinc-Ion Batteries

Abstract

Although current high-energy-density lithium-ion batteries (LIBs) have taken over the commercial rechargeable battery market, increasing concerns about limited lithium resources, high cost, and insecurity of organic electrolyte scale-up limit their further development. Rechargeable aqueous zinc-ion batteries (ZIBs), an alternative battery chemistry, have paved the way not only for realizing environmentally benign and safe energy storage devices but also for reducing the manufacturing costs of nextgeneration batteries. This Review underscores recent advances in aqueous ZIBs; these include the design of a highly reversible Zn anode, optimization of the electrolyte, and a wide range of cathode materials and their energy storage mechanisms. We also present recent advanced techniques that aim at overcoming the current issues in aqueous ZIB systems. This Review on the future perspectives and research directions will provide a guide for future aqueous ZIB study.

Delaminating Vanadium Carbides for Zinc‐Ion Storage: Hydrate Precipitation and H+/Zn2+ Co‐Action Mechanism

“…The discharge platform in GCD results from ≈0.75 V indicates the pseudocapacitance behavior, consistent with CV result (Figure b). The obvious redox peaks in CV curves show the pseudocapacitance contribution and reversibility of this device due to the insertion/extration of zinc ions between the interlayer of DV 2 C MXene, agreeing with previous reports . To further investigate the working mechanism, EIS was conducted at various voltage states during the cycling process to study the resistance changes.…”

Antifreezing Hydrogel with High Zinc Reversibility for Flexible and Durable Aqueous Batteries by Cooperative Hydrated Cations

“…[17][18][19][20][21] The reaction takes place at the Zn anode and can be regarded as a typical plating-stripping process. [17][18][19][20][21] The reaction takes place at the Zn anode and can be regarded as a typical plating-stripping process.…”

Mn3O4@NC Composite Nanorods as a Cathode for Rechargeable Aqueous Zn‐Ion Batteries

“…Even measured at higher current density of 1000 mA g À 1 , Mn 3 O 4 @NC Nrs can also exhibit a satisfactory capacity of 97 mAh g À 1 after 700 cycles (Figure 6e). [51] i ¼ av b (1) where a power law relationship between the operational current i and the sweep rate v. Two parameters a and b are adjustable and the b value depends on the slope of logiversus logv, the related equation (2) is given as follows: Interestingly, with the increase of cycle numbers, the capacity of Mn 3 O 4 @NC Nrs electrode increases gradually and finally stabilizes at a certain value.…”

“…[1][2][3] Thanks to the senior energy density, lithiumion batteries (LIBs) show great prospect to become an ideal candidate in the energy storage market. [1][2][3] Thanks to the senior energy density, lithiumion batteries (LIBs) show great prospect to become an ideal candidate in the energy storage market.…”