Zn metal batteries (ZBs) are considered promising candidates for next-generation energy storage systems. Cyclic reversibility of ZBs is strictly associated with the interfacial evolution of the Zn anode during the initial stripping. In this contribution, the asymmetry of the stripping/plating behavior is ide - Download [PDF]
Zn metal batteries (ZBs) are considered promising candidates for next-generation energy storage systems. Cyclic reversibility of ZBs is strictly associated with the interfacial evolution of the Zn anode during the initial stripping. In this contribution, the asymmetry of the stripping/plating behavior is ide
Manipulating the crystallographic orientation of zinc deposition is recognized as an effective approach to address zinc dendrites and side reactions for aqueous zinc-ion batteries (ZIBs). We introduce 2 …
Currently, commercialized Zn batteries mostly use alkaline electrolytes that are either nonrechargeable or poorly rechargeable due to the large amount of ZnO precipitation that passivates the electrode surface …
With the addition on of 0.05 M TEAC, the Zn anode facilitates a superior cycling stability over 2450 h at 1 mA cm −2 in Zn||Zn symmetric batteries. Additionally, the …
The pristine Zn symmetric battery revealed irregular overpotential and fast short circuits at ≈100 h with the current densities of 1.0 (Figure S15a of Supporting Information) and 2.0 mA cm –2 (Figure 4b), respectively. The Zn@NC symmetric batteries also exhibited a short circuit fault at ≈200 h under the same test conditions.
Benefiting from the synergistic effect of the FCTF protective layer and 3D porous zinc anode, the 3D Zn@FCTF symmetric battery can achieve a cycle life of 3600 h at 1 mA cm −2. Moreover, the initial discharge capacity of the 3D Zn@FCTF//CVO battery at a current density of 1 A/g is as high as 402.2 mAh/g. This work presents a novel approach to ...
Aqueous zinc ion batteries (AZIBs) have emerged as a promising battery technology due to their excellent safety, high capacity, low cost, and eco-friendliness. However, the cycle life of AZIBs is limited by severe side reactions and zinc dendrite growth on the zinc electrode surface, hindering large-scale application. Here, an electrolyte optimization strategy …
Aqueous zinc metal batteries are a viable candidate for cost-effective energy storage. ... Kwon, B., Lee, J. & Lee, K. T. Asymmetric behaviour of Li/Li symmetric cells for Li metal batteries. Chem ...
Manipulating the crystallographic orientation of zinc deposition is recognized as an effective approach to address zinc dendrites and side reactions for aqueous zinc-ion batteries (ZIBs). We introduce 2-methylimidazole (Mlz) additive in zinc sulfate (ZSO) electrolyte to achieve vertical electrodeposition with preferential orientation of the (100) and (110) crystal planes. …
Zinc metal battery (ZMB) is promising as the next generation of energy storage system, but challenges relating to dendrites and corrosion of the zinc anode are restricting its practical application. Here, to stabilize Zn anode, we report a controlled electrolytic method for a monolithic solid-electrolyte interphase (SEI) via a high dipole ...
The assembled zinc battery shows a discharging voltage of 0.5 V and a FE CO as high as 98% at current densities ranging from 0.71 to 12.86 mA cm −2, confirming high …
Aqueous zinc metal batteries (AZMBs) directly utilizing Zn metal anode have been regarded as a promising candidate for the next generation commercial batteries featuring high safety, high theoretical capacity, and appealing chemical stability. ... Fig. 2 b shows the rate performance of symmetric batteries at current densities of 0.2, 0.5, 1, 2 ...
Electrochemical performance and morphology characterization of Zn-Zn symmetric cells. In comparison with the short life span of around 90 h for the Zn-Zn symmetric cell in 1 M ZnSO 4 electrolyte ...
As displayed in Fig. 4 e, the overpotential of the electrode in the symmetric cell with bare zinc stabilizes within the first 30 h, however, it then experiences a sharp voltage drop, likely due to the formation of zinc dendrites that cause internal short circuits within the battery.
c) Chronoamperometry (CA) of zinc-symmetric battery at a − 200 mV overpotential. d) Exchange current for the four kinds of electrolytes from Fig. S4. e) Cycling performance of Zn||Zn symmetrical flow battery at the current density of 80 mA cm −2 (25 mAh cm −2). f) The corresponding discharge capacity for each cycle from panel e.
The inhomogeneous plating/stripping of zinc and side reactions originating from the dissolution of the cathode material in water lead to the poor stability of zinc anode, which inevitably limits the practical application of zinc-based aqueous batteries. Therefore, a novel hydrogel electrolyte made of hydroxyethyl cellulose/polyacrylamide (HEC/PAM) with a 3D …
A symmetric battery with quasi-solid electrolyte (PAM-QSE) is assembled and displays superior electrochemical performance (capacity retention of 78% at 2 A g −1 over 1000 cycles) compared to the conventional aqueous electrolyte. This work paves a new avenue for the development of sustainable and high-performance proton batteries.
The practical application of aqueous zinc-ion batteries for large-grid scale systems is still hindered by uncontrolled zinc dendrite and side reactions. Regulating the electrical double layer via the electrode/electrolyte interface layer is an effective strategy to improve the stability of Zn anodes. Herein, we report an ultrathin zincophilic ZnS layer as a model …
Aqueous zinc-ion battery (AZIB) is expected to be an alternative energy storage device for lithium-ion batteries because of its advantages of high safety and low cost. …
3 · The Zn||Zn symmetric batteries were assembled to study the compatibility of the zinc anode with the (Zn, Li)Cl 2 binary electrolyte. As shown in Figure 3d, the batteries showed …
Consequently, the Zn Zn symmetric cell with 1M Zn(DFTFSI) 2 aqueous electrolyte delivers an ultralong cycle life for >2500 h outperforming many other conventional Zn salt electrolytes. The Zn Br 2 battery also exhibits a long lifespan over 1200 cycles at ~99.8 % Coulombic efficiency with a high capacity retention of 92.5 %.
This review is expected to guide the future development and provi beacon light direction for aqueous zinc ion batteries. 1 Introduction. Energy from renewable and clean sources, such as solar, wind, and waves, is becoming increasingly prevalent around the world. ... The as-prepared Zn@ZnP symmetric battery could achieve stable cycling at a high ...
Aqueous batteries with zinc metal anodes are promising alternatives to Li-ion batteries for grid storage because of their abundance and benefits in cost, safety, and nontoxicity. However, short cyclability due to zinc dendrite growth remains a major obstacle. Here, we report a cross-linked polyacrylonitrile (PAN)-based cation exchange membrane that is low cost and mechanically …
A cathode is an important component in the zinc-ion battery as it acts as a host for zinc-ions. Therefore, its structure should be flexible to host the large ions without structural disintegration and maintain high electronic conductivity to keep the working of the battery alive (Selvakumaran et al. 2019).Both aqueous and nonaqueous types of electrolytes can be used …
The pristine Zn symmetric battery revealed irregular overpotential and fast short circuits at ≈100 h with the current densities of 1.0 (Figure S15a of Supporting Information) and 2.0 mA cm –2 (Figure 4b), …
The zinc-ion symmetric battery achieved a stable cycle of more than 2100 hours at a current density of 0.5 mA cm-2, which is mainly attributed to the inhibitory effect of the enhanced PAM gel on zinc dendrite growth and hydrogen evolution reaction. This study provides a new direction for the development and application of flexible zinc-ion ...
The resultant zinc symmetric battery could reversibly charge/discharge over 1800 h cycles without dendrite growth. The assembled ZIBs based on the in-situ-formed polymer electrolytes could work stably with …
<p>Zn metal electrode is the key to enabling the full vision of next-generation Zn-metal batteries (ZMBs). Thus far, the critical dendrite issue still restricts the Zn anode lifespan, which has even become the Achilles heel to the rejuvenation of ZMBs. This highlight previews the latest advance of Zn anode research, which suggests that Zn electrodes with initial stripping and plating can ...