Flexible electronics are forefront technologies with the growing demand for future deformable and wearable applications, including the Internet of Things (IoT), healthcare devices, integrated artificial skins, and wearable electronics. Rapidly evolving devices are strongly pushing to develop flexible energy devices as a power source. Flexible energy storage devices based on an aqueous electrolyte, alternative battery chemistry, is thought to be a promising power source for such flexible electronics. Their salient features pose high safety, low manufacturing cost, and unprecedented electrochemical performance. In this review, we focus on pioneering works of flexible aqueous energy storage devices for flexible electronics, covering the material designs for essential components of the energy devices such as active materials, current collectors, aqueous electrolyte, and separator membranes. In addition, we touch flexible aqueous energy devices with various configurations like thin-film energy devices, fiber energy devices, and porous matrix energy devices. Also, we present recent advanced aqueous energy with transparent and stretchable features beyond flexibility. Further, the challenges facing the practical application of flexible aqueous energy storage devices and the perspective of the current hurdles are proposed.

柔性电子技术是最前沿的技术，对未来的可变形和可穿戴应用（包括物联网（IoT），医疗设备，集成人造皮肤和可穿戴电子设备）的需求不断增长。迅速发展的设备正在大力推动将柔性能源设备开发为动力源。基于水性电解质的柔性能量存储设备，替代性的电池化学，被认为是这种柔性电子设备的有前途的电源。它们的显着特征具有很高的安全性，较低的制造成本和前所未有的电化学性能。在这篇评论中，我们专注于用于柔性电子设备的柔性水储能设备的开创性工作，涵盖了储能设备基本部件的材料设计，例如活性材料，集电器，水性电解质和隔膜。此外，我们接触具有各种配置的柔性水能设备，例如薄膜能量设备，纤维能量设备和多孔基质能量设备。此外，我们还展示了具有柔韧性和透明性和可拉伸性的最新先进水能。此外，提出了柔性水储能装置的实际应用面临的挑战以及当前障碍的观点。