Regulating zinc deposition behaviors by using a functional PANI modification layer on a separator for high performance aqueous zinc-ion batteries

Wu, Fangfang; Du, Fukai; Ruan, Pengchao; Cai, Guojun; Chen, Ye; Yin, Xinyu; Yin, Ruilian; Shi, Wenhui; Liu, Wenxian; Zhou, Jing; Cao, Xiehong

doi:10.1039/d3ta01344h

Cited by 35 publications

(13 citation statements)

References 48 publications

(52 reference statements)

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“…These conclusions were paralleled through UV–visible (UV-vis) spectroscopy, wherein the absorption spectrum of Zn-CCS displayed two broad absorption peaks at 250 and 310 nm. These peaks exhibited a progressive augmentation in light absorption as a function of wavelength, devoid of any emergence of new absorption peaks indicative of unanticipated conjugate structures (Figure d) . Evidently, the results firmly attest to the fidelity of the composition and formation principles governing the Zn-CCS layer throughout the electrodeposition process, affording alignment with the envisaged expectations.…”

Section: Resultssupporting

confidence: 70%

“…These peaks exhibited a progressive augmentation in light absorption as a function of wavelength, devoid of any emergence of new absorption peaks indicative of unanticipated conjugate structures (Figure 2d). 29 Evidently, the results firmly attest to the fidelity of the composition and formation principles governing the Zn-CCS layer throughout the electrodeposition process, affording alignment with the envisaged expectations. Additionally, the in situ FT-IR device was designed for exploring chemical bonding changes during targeted complexation processes (Figure 2f).…”

Section: Resultssupporting

confidence: 63%

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Crowding Effect-Induced Zinc-Enriched/Water-Lean Polymer Interfacial Layer Toward Practical Zn-Iodine Batteries

Hu,

Wang,

et al. 2023

ACS Nano

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Although the meticulous design of functional diversity within the polymer interfacial layer holds paramount significance in mitigating the challenges associated with hydrogen evolution reactions and dendrite growth in zinc anodes, this pursuit remains a formidable task. Here, a large-scale producible zinc-enriched/water-lean polymer interfacial layer, derived from carboxymethyl chitosan (CCS), is constructed on zinc anodes by integration of electrodeposition and a targeted complexation strategy for highly reversible Zn plating/stripping chemistry. Zinc ions-induced crowding effect between CCS skeleton creates a strong hydrogen bonding environment and squeezes the moving space for water/anion counterparts, therefore greatly reducing the number of active water molecules and alleviating cathodic I3 – attack. Moreover, the as-constructed Zn2+-enriched layer substantially facilitate rapid Zn2+ migration through the NH2–Zn2+-NH2 binding/dissociation mode of CCS molecule chain. Consequently, the large-format Zn symmetry cell (9 cm2) with a Zn-CCS electrode demonstrates excellent cycling stability over 1100 h without bulging. When coupled with an I2 cathode, the assembled Zn–I2 multilayer pouch cell displays an exceptionally high capacity of 140 mAh and superior long-term cycle performance of 400 cycles. This work provides a universal strategy to prepare large-scale production and high-performance polymer crowding layer for metal anode-based battery, analogous outcomes were veritably observed on other metals (Al, Cu, Sn).

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Section: Resultssupporting

confidence: 70%

Section: Resultssupporting

confidence: 63%

Crowding Effect-Induced Zinc-Enriched/Water-Lean Polymer Interfacial Layer Toward Practical Zn-Iodine Batteries

Hu,

Wang,

et al. 2023

ACS Nano

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“…The result demonstrates that the modified thin separator can remarkably surpass most of the reported work with protective layers and modified separators, and further supports the validity of this concept of integrating the protective layer and separator. 18,31–42 Particularly, the life cycle of the Zn∥Zn symmetrical cells can exceed that of many previously reported Zn∥Zn symmetrical cells based on other separators (Table 1).…”

Section: Resultsmentioning

confidence: 70%

Adjusting zinc deposition behaviors by a modified separator to acquire zinc anodes for aqueous rechargeable zinc-ion batteries

Li,

Wang,

Liu

et al. 2023

Dalton Trans.

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“…However, the Zn–Zn symmetric battery assembled with the synthesized ACE-10 membrane can be cycled stably for more than 3700 h. The Zn//Zn+ ACE-10 symmetric battery assembled at 2.0 mA cm –2 , 2.0 mAh cm –2 and 5.0 mA cm –2 , 5.0 mAh cm –2 can be cycled durably for over 600 h and close to 300 h, respectively (Figure S11). There is indeed an increase in cell polarization voltage at a current density of 2.0 mA cm –2 after 450 h, which may be associated with the contact environment revolution between the gel-type electrolyte and the zinc foil during repeated cycling. ,− The symmetric battery assembled with the ACE-10 membrane can retain stable cycling in the current density ranges of 0.2–10.0 mA cm –2 (Figure e), exhibiting good high-rate cycling endurance. Electrochemical reversibility is also an important indicator for metal anodes.…”

Section: Resultsmentioning

confidence: 95%

Simultaneous Inhibition of Zn Dendrites and Polyiodide Ions Shuttle Effect by an Anion Concentrated Electrolyte Membrane for Long Lifespan Aqueous Zinc–Iodine Batteries

et al. 2023

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Aqueous zinc−iodine (Zn−I 2 ) batteries have attracted extensive attention due to their merits of inherent safety, wide natural abundance, and low cost. However, their application is seriously hindered by the irreversible capacity loss resulting from both anode and cathode. Herein, an anion concentrated electrolyte (ACE) membrane is designed to manipulate the Zn 2+ ion flux on the zinc anode side and restrain the shuttle effect of polyiodide ions on the I 2 cathode side simultaneously to realize long-lifetime separator-free Zn− I 2 batteries. The ACE membrane with abundant sulfonic acid groups possesses a multifunctional amalgamation of good mechanical strength, guided Zn 2+ ion transport, and effective charge repulsion of polyiodide ions. Moreover, rich ether oxygen, carbonyl, and S−O bonds in anionic polymer chains will form hydrogen bonds with water to reduce the proportion of free water in the ACE membrane, inhibiting the water-induced interfacial side reactions of the Zn metal anode. Besides, DFT calculations and in-situ UV−vis and in situ Raman results reveal that the shuttle effect of polyiodide ions is also significantly suppressed. Therefore, the ACE membrane enables a long lifespan of Zn anodes (3700 h) and excellent cycling stability of Zn−I 2 batteries (10000 cycles), thus establishing a substantial base for their practical applications. KEYWORDS: aqueous zinc−iodine batteries, anion concentrated electrolyte membrane, guided Zn 2+ ion flux, free water, polyiodide ions shuttle effect

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Regulating zinc deposition behaviors by using a functional PANI modification layer on a separator for high performance aqueous zinc-ion batteries

Abstract: Aqueous zinc-ion batteries (AZIBs) are the promising energy storage devices due to the high safety, abundant zinc reserves, high theoretical capacity and low redox potential. Glass fiber (GF) has been...

Cited by 35 publications

References 48 publications

Crowding Effect-Induced Zinc-Enriched/Water-Lean Polymer Interfacial Layer Toward Practical Zn-Iodine Batteries

Crowding Effect-Induced Zinc-Enriched/Water-Lean Polymer Interfacial Layer Toward Practical Zn-Iodine Batteries

Adjusting zinc deposition behaviors by a modified separator to acquire zinc anodes for aqueous rechargeable zinc-ion batteries

Simultaneous Inhibition of Zn Dendrites and Polyiodide Ions Shuttle Effect by an Anion Concentrated Electrolyte Membrane for Long Lifespan Aqueous Zinc–Iodine Batteries

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