Suppressing dendrite growth with a poly(1-aminoanthraquinone) coating in a VS4 nanoflowers@carbon nanotubes composite based long lasting zinc-ion battery

Kaur, Babneet and Naskar, Souvik and Ghosal, Partha and Deepa, Melepurath (2023) Suppressing dendrite growth with a poly(1-aminoanthraquinone) coating in a VS4 nanoflowers@carbon nanotubes composite based long lasting zinc-ion battery. Applied Surface Science, 610 (155552). pp. 1-14. ISSN 0169-4332

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Abstract

Non-aqueous zinc ion battery (ZIB) with a wide operational voltage window (∼1.8 V) and high Coulombic efficiency is fabricated. A cathode free of structural instability and low electrical conductivity issues as well as an anode free of dendritic growth enabled by a conducting polymer layer are deployed. The polymer, poly(1-aminoanthraquinone) (PAAQ) through electron rich functional groups and a porous microstructure allows uniform diffusion of Zn2+ ions during charging. A homogeneous Zn deposit is formed contrasting strongly with unrestricted dendritic growth in cells with Zn anode. The ZIB cathode is a composite of VS4 nanoflowers and carbon nanotubes functionalized with dioctyl sulfosuccinate (VS4 NFs@CNTs). It outperforms pristine VS4 NFs, due to enhanced electrical conductivity, ease of electron and ion transfer and transport, effective buffering of volume changes and better accessibility of the active V4+/5+ sites. The VS4 NFs@CNTs//PAAQ@Zn cell delivers a capacity of 330 mAh g−1 at 30 mA g−1 and retains 83.3 % (275 mAh g−1) and 80 % at 100 mA g−1 of its initial capacitance after 100 and 500 cycles. This work lays the foundation for developing ZIBs with ultra-long lifespan and high energy density as advanced energy storage systems. © 2022 Elsevier B.V.

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IITH Creators:

IITH Creators	ORCiD
Deepa, Melepurath	https://orcid.org/0000-0001-7070-5100

Item Type:

Article

Additional Information:

Financial support for this work from the Science & Engineering Research Board (SERB) of India (Grant no. CRG/2020/000482) is gratefully acknowledged by M. Deepa, B. Kaur and S. Naskar. B.K. is thankful to PMRF scheme for PhD fellowship. S.N. is thankful to CSIR for junior research fellowship.

Uncontrolled Keywords:

Battery; Carbon nanotubes; Poly(1-aminoanthraquinone); Vanadium; Zn ion

Subjects:

Chemistry
Chemistry > Inorganic chemistry

Divisions:

Department of Chemistry

Depositing User:

. LibTrainee 2021

Date Deposited:

23 Nov 2022 11:25

Last Modified:

23 Nov 2022 11:25