Development of an azo-based organic electrode material for aqueous rechargeable lithium batteries

IF 2.6 4区化学 Q3 ELECTROCHEMISTRY

Journal of Solid State Electrochemistry Pub Date : 2025-03-23 DOI:10.1007/s10008-025-06282-5

M. Chaithra, G. S. Suresh

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Abstract

Employment of environmentally friendly, potentially stable, and low-cost organic electrode material is assumed to be a very promising electrode material for next-generation rechargeable lithium batteries (RLBs). Herein for the first time, we fabricated a Bismarck Brown Y (BBY) as electrode material for aqueous rechargeable lithium batteries. BBY is a prototypical aromatic azo compound with two azo bonds (-N = N-) in their molecular structure with an IUPAC name, 4,4′-[benzene-1,3-diyldi(E)diazene-2,1-diyl]dibenzene-1,3-diamine. It reversibly reacts with lithium-ion via redox reaction of the azo group. To improve the electrochemical behaviour and stability of electrode material, carbon nanotubes are incorporated in BBY through solution-processing method. The resulting composite (BBY@CNTs) in three-electrode system showed a discharge capacity of 226.56 mA h g⁻¹ which proved that N = N bond can act as an active site for reversible redox process. BBY/C│aq. Saturated Li₂SO₄│LiMn₂O₄ full cell showed the charge–discharge capacity at 118.43 mA h g⁻¹ and 107.24 mA h g⁻¹, respectively. This agreeable result mark ably suits this material as an anode in aqueous rechargeable lithium batteries for present and future high energy demands.

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用于水可充电锂电池的偶氮基有机电极材料的研制

环境友好、稳定、低成本的有机电极材料被认为是下一代可充电锂电池极具发展前景的电极材料。本文首次制备了Bismarck Brown Y （BBY）作为水可充电锂电池的电极材料。BBY是一种典型的芳香偶氮化合物，其分子结构中有两个偶氮键（-N = N-）， IUPAC名称为4,4 ' -[苯-1,3-二基二(E)二氮-2,1-二基]二苯-1,3-二胺。它通过偶氮基团的氧化还原反应与锂离子发生可逆反应。为了提高电极材料的电化学性能和稳定性，通过溶液处理方法将碳纳米管掺入到BBY中。在三电极体系中得到的复合材料（BBY@CNTs）的放电容量为226.56 mA h g−1，证明了N = N键可以作为可逆氧化还原过程的活性位点。百思/ C│aq。饱和Li2SO4│LiMn2O4全电池的充放电容量分别为118.43 mA h g - 1和107.24 mA h g - 1。这一令人满意的结果标志着这种材料非常适合作为目前和未来高能量需求的水性可充电锂电池的阳极。

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来源期刊

Journal of Solid State Electrochemistry 工程技术-电化学

CiteScore

4.80

自引率

4.00%

发文量

227

审稿时长

4.1 months

期刊介绍： The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry. The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces. The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis. The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.