Aqueous all-organic battery-supercapacitor hybrid (BSH) devices are emerging as promising alternative energy storage systems to conventional metal-ion batteries/supercapacitors in terms of their easy processability, high tunability, cost-effectiveness, and recyclability. In this study, we demonstrate an all-organic BSH device using a record concentration of ammonium acetate (30 m NH₄Ac) as a cheap and green electrolyte. This novel water-in-salt system possesses an electrochemical stability window up to 2.1 V. In addition, organic polymers comprising of perylenetetracarboxy diimide core and the mixed aromatic amine groups are employed as negative and positive electrodes, respectively. The polymers show low water solubility, good crystallinity, and nano-morphology, which make them decent candidates for the all-organic aqueous BSH device. More importantly, electrochemical kinetic analysis of polymer electrodes reveals that the negative and positive electrodes display pseudocapacitive and battery-type behaviors, respectively. For the first time, an all-organic BSH device with 30 m NH₄Ac is fabricated, which delivers a specific capacity of 42 mA h g⁻¹ at 200 mA g⁻¹ and capacity retention of ca. 63% after 5000 cycles. It further shows the maximum energy density of 16.5 Wh kg⁻¹ and power density of 719 Wh kg⁻¹, depicting great potential in energy storage applications.

水性全有机电池 - 超级电容器混合（BSH）设备因其易于加工、高可调性、成本效益和可回收性而成为传统金属离子电池/超级电容器的有前途的替代储能系统。在本研究中，我们展示了使用创纪录浓度的醋酸铵 (30 m NH ₄Ac) 作为一种廉价且绿色的电解质。这种新型盐包水系统具有高达 2.1 V 的电化学稳定性窗口。此外，由苝四羧基二亚胺核和混合芳香胺基团组成的有机聚合物分别用作负极和正极。这些聚合物表现出低水溶性、良好的结晶度和纳米形态，这使其成为全有机水性 BSH 装置的理想候选者。更重要的是，聚合物电极的电化学动力学分析表明，负极和正极分别显示赝电容和电池型行为。首次制造了具有 30 m NH ₄ Ac的全有机 BSH 装置，该装置在 200 mA g g 下提供 42 mA hg ^-1的比容量⁻¹和容量保持率约。5000 次循环后为 63%。它进一步显示了16.5 Wh kg ^-1的最大能量密度和719 Wh kg ^{-1 的}功率密度，描绘了储能应用的巨大潜力。