Multiscalar Investigation of FeVO4 Conversion Cathode for a Low Concentration Zn(CF3SO3)2 Rechargeable Zn‐Ion Aqueous Battery

Kumar, Sonal; Verma, Vivek; Chua, Rodney; Ren, Hao; Kidkhunthod, Pinit; Rojviriya, Catleya; Sattayaporn, Suchinda; Groot, Frank M. F. de; Manalastas, William; Srinivasan, Madhavi

doi:10.1002/batt.202000018

Cited by 23 publications

(8 citation statements)

References 89 publications

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“…[1][2][3] The cathode in a ZIB is required to have an open structure enabling easy intercalation and deintercalation of Zn(II) ions, during discharging and charging processes, to maximize energy storage via diffusion and Faradaic mechanisms. A variety of crystalline transition metal oxides [6][7][8][9][10] and Prussian blue analogues [11][12][13][14] endowed with channel dimensions in excess of 1.5 Å [which is approximately twice the ionic radius of Zn(II) ion] have been deployed as cathodes in ZIBs.…”

Section: Introductionmentioning

confidence: 99%

ZnV₂O₄‐Textured Carbon Composite Contacting a ZIF‐8 MOF Layer for a High Performance Non‐Aqueous Zinc‐Ion Battery

Naskar

Deepa

2021

Batteries & Supercaps

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Non‐aqueous zinc‐ion battery (ZIB) comprising a zinc vanadate@textured carbon (ZnV2O4@TC) composite cathode and Zn‐anode demonstrates an improved Zn(II)‐ion storage response, in terms of cyclability (230 mAh g−1 after 200 cycles, 84.9 % retention) and rate capability compared to pristine ZnV2O4 (175 mAh g−1 after 200 cycles, 45.4 % retention). TC reduces the aggregation of ZnV2O4 nanoparticles, allows abundant interaction with electrolyte, affords short ion diffusion pathways, serves as electrically conducting interconnects, and buffers the volume alterations thus imparting rapid kinetics and improved cycling stability. This performance is even better by the inclusion of a ZIF‐8 metal‐organic framework (MOF) layer at the separator, facing the cathode. ZIF‐8 due to its nanoporous structure encompassing Zn−N based polyhedral clusters, efficiently confines Zn(II) ions at cathode during discharge and allows their facile diffusion through its open channels during charge thus maximizing Zn(II) ion storage capacity and reversibility and its highly crystalline robust structure also enhances the ZIB durability. This achievement is in line with the development of cost‐effective, easily implementable non‐aqueous ZIB that avoids the issues associated with aqueous electrolyte of limited potential stability window, corrosion of current collectors over time, and cell degradation and also offers long term stability and capacity.

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Section: Introductionmentioning

confidence: 99%

ZnV₂O₄‐Textured Carbon Composite Contacting a ZIF‐8 MOF Layer for a High Performance Non‐Aqueous Zinc‐Ion Battery

Naskar

Deepa

2021

Batteries & Supercaps

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“…Second, because of the polarity of water, the ligand water molecules in Zn(H 2 O) 6 2+ are hydrolyzed to form H + , decreasing the pH of the electrolyte. 15,16 The Pourbaix plot Zn shows that the Zn metal exhibits thermodynamic instability in an acidic electrolyte (Fig. 2a).…”

Section: Zn Corrosionmentioning

confidence: 99%

Progress in stabilizing zinc anodes for zinc-ion batteries using electrolyte solvent engineering

Li,

Yue,

Jia

et al. 2024

Green Chem.

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“…The zinc ion in the center of the hydrated‐zinc‐ion structure can act as a Lewis acid; therefore, it can be hydrolyzed in an aqueous solution to generate hydrogen ions, generating an excess of protons and increasing the electrolyte acidity. [ 49 ] This is why the common aqueous zinc‐salt electrolytes described in Section 2.1 are weakly acidic, with pH values generally in the range of 3–6. [ 50 ] The anode–electrolyte interface is in a thermodynamically unstable state when the Zn anode contacts a weakly acidic electrolyte.…”

Section: Undesirable Side Reaction At the Anode–electrolyte Interfacementioning

confidence: 99%

Insight on the Double‐Edged Sword Role of Water Molecules in the Anode of Aqueous Zinc‐Ion Batteries

Chen

Zhang

et al. 2022

Small Structures

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As promising candidates for aqueous metal batteries, aqueous zinc‐ion batteries (ZIBs) have attracted more attention due to their superior safety, low cost, and environmentally benign characteristics. Solvent water plays a double‐edged sword role that cannot be ignored in the electrochemical performance and long cycling stability of the batteries. The hydrated zinc ions of the solvated structure can boost the diffusion kinetics of zinc ions, whereas the released active water molecules during desolvation can lead to notorious hydrogen evolution reactions, dendrites growth, and surface passivation at the unstable interface between the electrolyte and the anode. Unlike previous reports that summarize recent research progress, this review focuses on the double‐edged sword role of water molecules in the anode during electrochemical processes in ZIBs. The influencing mechanism of water molecules on the stability of zinc anode during the energy storage process is systematically discussed, including the basic theory, water regulation strategies, and recent reports. The two‐faced identity of the water molecules in aqueous electrolyte is profoundly revealed herein, and some revelatory insights and possible strategies are provided for the future design on stable and durable zinc anodes of high‐performance ZIBs.

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Multiscalar Investigation of FeVO₄ Conversion Cathode for a Low Concentration Zn(CF₃SO₃)₂ Rechargeable Zn‐Ion Aqueous Battery

Abstract: M. (2020). Multiscalar investigation of FeVO4 conversion cathode for a low concentration Zn(CF3SO3)2 rechargeable Zn-ion aqueous battery. Batteries & Supercaps, 3(7), 619-630.

Cited by 23 publications

References 89 publications

ZnV₂O₄‐Textured Carbon Composite Contacting a ZIF‐8 MOF Layer for a High Performance Non‐Aqueous Zinc‐Ion Battery

ZnV₂O₄‐Textured Carbon Composite Contacting a ZIF‐8 MOF Layer for a High Performance Non‐Aqueous Zinc‐Ion Battery

Progress in stabilizing zinc anodes for zinc-ion batteries using electrolyte solvent engineering

Insight on the Double‐Edged Sword Role of Water Molecules in the Anode of Aqueous Zinc‐Ion Batteries

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Multiscalar Investigation of FeVO4 Conversion Cathode for a Low Concentration Zn(CF3SO3)2 Rechargeable Zn‐Ion Aqueous Battery

Abstract: M. (2020). Multiscalar investigation of FeVO4 conversion cathode for a low concentration Zn(CF3SO3)2 rechargeable Zn-ion aqueous battery. Batteries & Supercaps, 3(7), 619-630.

Cited by 23 publications

References 89 publications

ZnV2O4‐Textured Carbon Composite Contacting a ZIF‐8 MOF Layer for a High Performance Non‐Aqueous Zinc‐Ion Battery

ZnV2O4‐Textured Carbon Composite Contacting a ZIF‐8 MOF Layer for a High Performance Non‐Aqueous Zinc‐Ion Battery

Progress in stabilizing zinc anodes for zinc-ion batteries using electrolyte solvent engineering

Insight on the Double‐Edged Sword Role of Water Molecules in the Anode of Aqueous Zinc‐Ion Batteries

Contact Info

Product

Resources

About

Multiscalar Investigation of FeVO₄ Conversion Cathode for a Low Concentration Zn(CF₃SO₃)₂ Rechargeable Zn‐Ion Aqueous Battery

ZnV₂O₄‐Textured Carbon Composite Contacting a ZIF‐8 MOF Layer for a High Performance Non‐Aqueous Zinc‐Ion Battery

ZnV₂O₄‐Textured Carbon Composite Contacting a ZIF‐8 MOF Layer for a High Performance Non‐Aqueous Zinc‐Ion Battery