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<p>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(<i>E</i>)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&#xa0;mA&#xa0;h&#xa0;g<sup>−1</sup> which proved that N = N bond can act as an active site for reversible redox process. BBY/C│aq. Saturated Li<sub>2</sub>SO<sub>4</sub>│LiMn<sub>2</sub>O<sub>4</sub> full cell showed the charge–discharge capacity at 118.43&#xa0;mA&#xa0;h&#xa0;g<sup>−1</sup> and 107.24&#xa0;mA&#xa0;h&#xa0;g<sup>−1</sup>, respectively. This agreeable result mark ably suits this material as an anode in aqueous rechargeable lithium batteries for present and future high energy demands.</p>

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

  • 期刊论文

  • 发表日期：

    2025年3月23日

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  • M. Chaithra,
  • G. S. Suresh

摘要

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.