Abstract：
Charging power supplies with both fast and visualization functions have a wide range of applications in the information and new energy industries. In this paper, the visualized and contact-type fast charging power supply based on WO3 film and Zn sheet is presented, and the prototype devices are fabricated. Different with the charging method of conventional batteries, charging is achieved by a Zn sheet contacting with a WO3 film moistened with water, resulting in a rapid discoloration of WO3. Theoretical investigation indicates that the interaction between Zn sheet and water molecules is the primary cause of the color change in the WO3 film. The WO3 film completes the colouring state within 10 s in the presence of Zn sheet and water, and the open-circuit voltage of the device is 0.7 V, which can be used to drive various electronics by series-parallel connection. This research introduces a novel method to induce colouring of WO3 films and proposes a fast charging mode different from traditional power sources. It provides valuable insights for the future development of fast charging in the field of electrical energy.
摘要：
具有快速和可视化功能的充电电源在信息和新能源行业中具有广泛的应用。在本文中,提出了基于WO3薄膜和Zn片的可视化接触式快速充电电源，并制作了原型设备。与传统电池的充电方式不同，充电是通过与用水润湿的WO3膜接触的Zn片实现的，导致WO3快速变色。理论研究表明，Zn片与水分子之间的相互作用是WO3薄膜颜色变化的主要原因。在锌片和水的存在下，WO3薄膜在10s内完成着色状态，器件的开路电压为0.7V，可用于驱动各种电子串并联连接。本研究介绍了一种诱导WO3薄膜着色的新方法，并提出了一种不同于传统电源的快速充电模式。为未来快速充电在电能领域的发展提供了宝贵的启示。
