Research On Fiber Secondary Zinc-manganese Battery And Application Of Fabric

The rapid development of intelligent electronics and the Internet of Things have put forward urgent and challenging requirements for stable and sustainable light energy devices with stable output.For traditional wearable energy devices,there are generally problems such as large size,poor flexibility,and heavy quality,and the power output fluctuates greatly under different environments,which cannot meet the electricity demand of many electronic products.eventually limits the development and widespread use of wearable energy devices.Flexible fibrous secondary Zn-MnO₂ battery has become a research hotspot in the wearable field due to its rich resources,environmental protection,and high safety.In this thesis,we used manganese dioxide,an economically feasible material,as the anode material for energy storage batteries,and prepared a flexible fibrous secondary zinc-manganese dioxide battery,which was integrated with dye-sensitized solar cells.Through the expansion of weaving technology such as weaving and embroidery,an uninterrupted energy fabric capable of harvesting light energy and storage energy at the same time was prepared.The research content of this article mainly includes the following points:（1）The research explored the synthesis of manganese dioxide materials and the fabrication of electrodes.Aiming at the problem of poor conductivity of manganese dioxide material,we upgraded it by adding acetylene black conductive material during the synthesis process.The first specific discharge capacity of the battery made from manganese dioxide synthesized after adding acetylene black reached 197m Ah/g.Meanwhile,the coating conditions of manganese dioxide electrode were explored,and fibrous manganese dioxide electrode with high stability and flexibility was prepared.（2）Flexible fiber secondary Zn-MnO₂ battery was prepared.To further reduce the size of the fiber battery and improve the performance of the battery during high current discharge,the coaxial single fiber Zn-MnO₂ battery structure was designed,which greatly reduced the volume of the battery and shortened the electron transmission distance.This provides a new idea for the design of fibrous secondary Zn-MnO₂ battery.At the same time,the effects of the gelation degree and curing state of the electrolyte on the battery performance were explored.Finally,the prepared flexible fibrous secondary Zn-MnO₂battery was tested for electrochemical performance.The battery has good stability.After500 cycles,the capacity attenuation is less than 20%.（3）Self-powered energy fabric was researched and manufactured.Through self-designed shuttle weaving and embroidery integration methods,the flexible fibrous secondary Zn-MnO₂ battery and dye-sensitized solar cell were mixed and integrated to produce a sustainable and stable power supply energy fabric that integrates harvesting and storage.The energy fabric had good stability and flexible structure.Under standard single-day sunlight conditions,it could continue to supply power for 10 minutes at a current of 0.1 m A after charging for 1 minute.In the case of bending,wind blowing and water washing,it could still maintain stable output,and there was no obvious voltage loss in 60 days.This technology has a wide range of development and application prospects in energy,medical,military,health,monitoring,etc.,and has attracted widespread attention in academia and intelligent industries.