【摘要】 随着可穿戴电子设备的快速发展，大容量柔性电池的研究备受关注.锌氧化银（Zn-Ag₂O）电池因其输出电压稳定、能量密度高以及环境友好而受青睐，但存在正极材料容量较低的问题.本文采用液相法在碳布基底上原位合成金属钴有机框架（Co-MOF）前驱体，经碳化处理再电化学沉积银并进一步氧化，构建了无黏结剂正极.该法显著增大了氧化银（Ag₂O）的负载面积.循环伏安测试表明，CC-NC-Co₃O₄-Ag₂O正极在碱性电解液中的电化学反应可逆性不佳.电荷转移电阻从CC-Ag₂O电极的1 200Ω·cm²大幅降至CC-NC-Co₃O₄-Ag₂O的50Ω·cm²,这是因为在Co₃O₄-Ag₂O在氮掺杂碳纳米片修饰的柔性碳布基底上均匀分布，大幅增加了活性面积，同时有效降低了电荷转移电阻.将CC-NC-Co₃O₄-Ag₂O作为正极组装锌-银电池体系，在1.0 mA/cm²的电流密度下放电容量0.55 mA·h/cm²;将其应用于锌-银/锌-空气混合电池时，放电容量显著提升至2.73 mA·h/cm²,增幅达396%.该混合电池开路电压1.60 V,可驱动LED灯工作，证实了CC-NC-Co₃O₄-Ag₂O作为锌-银/锌-空气混合电池正极材料的实用价值.更多还原

【Abstract】 With the rapid development of wearable electronic devices, researches on high-capacity flexible batteries has attracted much attention.Zinc silver oxide（Zn-Ag₂O） batteries are favored due to their stable output voltage, high energy density, and environmental friendliness, but there is a problem of low positive electrode material capacity.In this paper, Co metal organic framework（Co-MOF） precursor was synthesized in situ on carbon cloth substrate using liquid-phase method.After carbonization treatment, silver was electrochemically deposited and further oxidized to construct a non adhesive positive electrode.The loading area of Ag₂O was significantly increased.The cyclic voltammetry test showed that the electrochemical reaction reversibility of CC-NC-Co₃O₄-Ag₂O positive electrode in alkaline electrolyte was poor.The charge transfer resistance decreased significantly from 1 200 Ω·cm² on CC-Ag₂O electrode to 50 Ω·cm² on CC-NC-Co₃O₄-Ag₂O.This is because Co₃O₄-Ag₂O is uniformly distributed on the flexible carbon cloth substrate modified with N-doped carbon nanosheets, greatly increasing the active area and effectively reducing the charge transfer resistance.Using CC-NC-Co₃O₄-Ag₂O as the positive electrode, a zinc silver battery system was assembled with a discharge capacity of 0.55 mA·h/cm² at a current density of 1.0 mA/cm².When applied to a zinc silver/zinc air hybrid battery, the discharge capacity was significantly increased to 2.73 mA·h/cm²,an increase of 396%.The open circuit voltage of the hybrid battery is 1.60 V,which drives the LED light to work, confirming the practical value of CC-NC-Co₃O₄-Ag₂O as a positive electrode material for zinc silver/zinc air hybrid batteries.更多还原