Fabrication of environmental friendly, compact and wearable electronic device using a flexible substrate that synchronously harvests and stores energy by the co-ordination of a conventional energy harvesting and storage mechanism in a single portable device is highly essential to design modern electronics. Here, for the first time, we highlight the fabrication of a natural bio-piezoelectric driven self-charging asymmetric supercapacitor (SCASC) power cell consisting of nickel-cobalt double hydroxide nanoplies decorated copper oxide nanoflakes substantially grown on a flexible copper foil ([email protected] foil) as a binder free positive electrode and reduced graphene oxide coated copper foil ([email protected] foil) as negative electrode with a PVA–KOH gel electrolyte soaked perforated fish swim bladder as natural bio-piezoelectric separator (BPES). The prompt and self-charging behavior of the power cell was established by mechanically deforming it under human finger imparting and by several casual natural body motions. The rectification-free SCASC device can be charged up to 281.3 mV from its initial open circuit potential (~130.1 mV) in ~80 s under continuous human finger imparting at a frequency of 1.65 Hz. Moreover, eight serially connected SCASC devices can instantaneously light-up four red light-emitting diodes (LEDs) and power-up various portable electronic appliances on frequent imparting. Thus, the light-weight SCASC with unique design resembles its desirability for future generation smart and wearable electronics.

使用柔性基板来制造环保，紧凑且可穿戴的电子设备，该柔性基板通过在单个便携式设备中常规能量收集和存储机制的协调来同步地收集和存储能量，这对于设计现代电子产品至关重要。在这里，第一次 我们重点介绍了一种天然生物压电驱动的自充电不对称超级电容器（SCASC）电池的制造，该电池由镍钴双氢氧化物纳米装饰的氧化铜纳米薄片组成，该薄片基本上生长在作为粘合剂的柔性铜箔（[受电子邮件保护]箔）上自由的正极和还原的氧化石墨烯涂覆的铜箔（[电子邮件保护]箔）作为负极，带有PVA-KOH凝胶电解质，浸过的多孔鱼泳囊作为天然生物压电分离器（BPES）。通过在人的手指施加下使其机械变形并通过几次随意的自然运动来建立动力电池的迅速和自充电行为。无整流SCASC器件可以从其初始开路电势（〜130）充电至281.3 mV。在约80 s的持续人手指下以1.65 Hz的频率施加1 mV电压）。此外，八个串行连接的SCASC器件可以瞬时点亮四个红色发光二极管（LED），并在频繁通电时为各种便携式电子设备通电。因此，具有独特设计的轻量级SCASC类似于其对下一代智能和可穿戴电子产品的需求。