Preparation And Performance Test Of Electrospun Nafion Ordered Fibrous Membrane Energy Collector

As a common phenomenon in life,mechanical vibration is ubiquitous in nature.Compared with other forms of energy,it has higher energy density and is easier to use.It is of great practical significance to collect and convert mechanical vibration energy into utilized electric energy through energy collection devices.IPMC(Ionic Polymer Metal Composites)is such an intelligent material,when it deforms,it generates electrical signals which can be used for energy collection,however,the traditional IPMC energy collectors have low output voltage and low power density.In this paper,highly ordered Nafion fibros membranes were prepared by electrospinning to improve proton conductivity;and a new type of energy collector was designed and fabricated,whose performance was tested afterwards,based on the principle of IPMC energy collection.In this paper,highly ordered Nafion fibrous membranes were prepared by electrospinning technology and the rotary-drum-collecting method.After the micro-morphology and structure of the fibrous membranes being characterized,several important characteristics,such as water uptake potential,ion exchange capacity and proton conductivity were tested Furtherly,the differences of chemical molecular structure between Nafion fibrous membranes and traditional commercial membranes were explored with infrared spectroscopy.Based on the high proton conductivity of Nafion fibrous membranes,an energy collection device,of which the structure design and fabrication process were primarily researched,and the energy collection capacity has been tested,was designed and fabricated by using elastomer to wrap Nafion fibrous membranes.Combined with the pressure output test system,the influence of different pressure loads on the output performance of the device was furtherly studied,so were the output power and power density of the energy collector under different load resistances.Aiming at the limitation that the flaky Nafion fibrous membranes energy collector can only collect mechanical vibration energy in a single direction,a new rod-shaped energy collector structure was proposed to collect multi-directional mechanical vibration energy.The structure design and fabrication process of the rod-shaped energy collector were explored,and the output performance of the rod-shaped energy collector was studied and tested.At the same time,the effects of different direction loads,different forms of loads and different carrier cations on the output performance of the device were furtherly explored.