Low-cost and long-life Zn/Prussian blue battery using a water-in-ethanol electrolyte with a normal salt concentration

Sun, Yunpo; Xu, Zheng; Xu, Xiongwen; Nie, Yang; Tu, Jian; Zhou, Aijun; Zhang, Jie; Qiu, Lvchao; Chen, Fang; Xie, Jian; Zhu, Tailin; Zhao, Xinbing

doi:10.1016/j.ensm.2022.03.023

Cited by 71 publications

(40 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[ 10 ] Another effective method for regulating the interface chemistry is electrolyte optimization. [ 11 ] By introducing the super‐concentration “water‐in‐salts” or co‐solvent electrolytes, [ 12 ] the coordination environment of the hydrated Zn 2+ has been altered, and the activity of H 2 O molecules can be decreased, thus alleviating the H 2 O‐induced side reactions and consequently improving the rechargeability of the Zn anodes. [ 13 ] Nevertheless, the high viscosity of super‐concentration electrolyte and the organic co‐solvent would decrease the ionic conductivity of the electrolyte and enlarge the electrode polarization, as well as increase the battery manufacturing cost.…”

Section: Introductionmentioning

confidence: 99%

Building Metal‐Molecule Interface towards Stable and Reversible Zn Metal Anodes for Aqueous Rechargeable Zinc Batteries

Qin

Kuang

et al. 2022

Adv Funct Materials

162

View full text Add to dashboard Cite

Aqueous zinc ion batteries (AZIBs) are receiving increasing attention for large-scale energy storage systems owing to their appealing features with intrinsic safety, low cost, and scalability. Unfortunately, the water-induced parasitic reactions and dendrite growth on the Zn anode severely impede the further development of AZIBs. Herein, a thiourea additive is introduced into ZnSO 4 electrolyte to construct unique metal-molecule interface for simultaneously regulating the Zn anode interface chemistry and the bulk electrolyte environment. Experimental results and theoretical calculations reveal that the formed metal-molecule interface can not only serve as a corrosion inhibitor for alleviating the water-induced side reactions, but also act as a Zn 2+ ion regulator for promoting the homogenous Zn deposition, thus achieving a corrosion-free and dendrite-free Zn anode. Consequently, the Zn|Zn symmetric cell exhibits an extended lifespan of 1200 h at 1 mA cm -2 , 1mAh cm -2 , and a high cumulative capacity of 3000 mAh cm -2 at 10 mA cm -2 . When paired with V 2 O 5 cathode, the Zn|V 2 O 5 full cell delivers a high capacity retention of 76.0% after 1000 cycles at 1 A g -1 . This study paves a new way to modulate Zn electrode interface chemistry by the novel design of metal-molecule interface for advanced rechargeable Zn metal batteries and beyond.

show abstract

Section: Introductionmentioning

confidence: 99%

Building Metal‐Molecule Interface towards Stable and Reversible Zn Metal Anodes for Aqueous Rechargeable Zinc Batteries

Qin

Kuang

et al. 2022

Adv Funct Materials

162

View full text Add to dashboard Cite

show abstract

“…3 Furthermore, the employment of zinc metal anode in a battery can provide advantages including high specific capacity (820 mAh g −1 ), good compatibility with aqueous electrolytes, and massive scale of manufacturing. 4 Therefore, various aqueous zinc-based battery systems have been developed by using metal oxide, 5 Prussian blue analogues, 6 covalent organic frameworks, 7 halogens, 8 etc. as cathode materials.…”

Section: Introductionmentioning

confidence: 99%

A High-Performance Quasi-Solid-State Aqueous Zinc–Dual Halogen Battery

Fang

Ding

et al. 2022

ACS Nano

View full text Add to dashboard Cite

Aqueous zinc-based batteries are promising candidates for the grid-scale energy storage owing to their nonflammability, ecofriendliness, and low cost. Nevertheless, their practical applications are hindered by the relatively low capacity and energy density. Herein, we develop a quasi-solid-state aqueous zinc–dual halogen battery composed of freestanding carbon cloth–iodine cathode and in situ prepared concentrated aqueous gel electrolyte. The freestanding composite cathode and aqueous gel electrolyte can afford iodine source and bromide ions, respectively, thus activating the I–/I0/I+ reaction by forming [IBr2]− interhalogen. Furthermore, the conversion reaction of Br–/Br0 in [IBr2]− interhalogen is stimulated due to the catalytic effect of iodine. Therefore, this rationally designed aqueous dual halogen conversion chemistry enables three successive redox reactions (i.e., I–/I0, I0/I+, and Br–/Br0). Additionally, the LiNO3 additive and acrylamide (AM)-based polymer matrix not only stabilizes the anode/electrolyte interface but also restrains the side reactions and dissolution/diffusion of active species. Consequently, the as-assembled aqueous zinc–dual halogen battery exhibits high areal capacity and energy density.

show abstract

“…At present, manganese-based materials, − vanadium-based materials, − Prussian blue, and its analogues, − as well as organic compounds, − have been applied as cathode materials for ZIBs. Due to the multistage electrochemical process, vanadium-based materials have a high theoretical specific capacity.…”

Section: Introductionmentioning

confidence: 99%

In Situ Electrochemically Oxidative Activation Inducing Ultrahigh Rate Capability of Vanadium Oxynitride/Carbon Cathode for Zinc-Ion Batteries

Chi

Wang

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

As a promising candidate for large-scale energy storage, aqueous zinc-ion batteries (ZIBs) still lack cathode materials with large capacity and high rate capability. Herein, a spherical carbon-confined nanovanadium oxynitride with a polycrystalline feature (VN x O y /C) was synthesized by the solvothermal reaction and following nitridation treatment. As a cathode material for ZIBs, it is interesting that the electrochemical performance of the VN x O y /C cathode is greatly improved after the first charging process via in situ electrochemically oxidative activation. The oxidized VN x O y /C delivers a greatly enhanced reversible capacity of 556 mAh g–1 at 0.2 A g–1 compared to the first discharge capacity of 130 mAh g–1 and a high capacity of 168 mAh g–1 even at 80 A g–1. The ex situ characterizations verify that the insertion/extraction of Zn2+ does not affect the crystal structure of oxidized VN x O y /C to promise a stable cycle life (retain 420 mAh g–1 after 1000 cycles at 10 A g–1). The experimental analysis further elucidates that charging voltage and H2O in the electrolyte are curial factors to activate VN x O y /C in that the oxygen replaces the partial nitrogen and creates abundant vacancies, inducing a conversion from VN x O y /C to VN x–m O y+2m /C and then resulting in considerably strengthened rate performance and improved Zn2+ storage capability. The study broadens the horizons of fast ion transport and is exceptionally desirable to expedite the application of high-rate ZIBs.

show abstract

Low-cost and long-life Zn/Prussian blue battery using a water-in-ethanol electrolyte with a normal salt concentration

Cited by 71 publications

References 64 publications

Building Metal‐Molecule Interface towards Stable and Reversible Zn Metal Anodes for Aqueous Rechargeable Zinc Batteries

Building Metal‐Molecule Interface towards Stable and Reversible Zn Metal Anodes for Aqueous Rechargeable Zinc Batteries

A High-Performance Quasi-Solid-State Aqueous Zinc–Dual Halogen Battery

In Situ Electrochemically Oxidative Activation Inducing Ultrahigh Rate Capability of Vanadium Oxynitride/Carbon Cathode for Zinc-Ion Batteries

Contact Info

Product

Resources

About