| In recent years,wearable electronic products have ushered in tremendous development,and many types of wearable electronic products have appeared in real life.Such as smart bracelets,smart clothing,Bluetooth headsets,etc.That has a large number of applications in communication,health monitoring and other aspects.The functional diversity and convenience of wearable electronics have attracted consumer interest,and the huge potential market in this field has also attracted wide attention of people from all walks of life.At present,one of the development directions of wearable electronic products is miniaturization,and its reduction in volume has brought great convenience to people’s lives,but at the same time it also limits the sustainability of its energy supply system.For traditional batteries,the limitation of volume inevitably causes the low storage capacity of the energy supply system.Accordingly,wearable electronic products have a short battery life during use and require frequent charging or battery replacement,which also brings inconvenience to its use.Hence,solving the problem of continuous energy supply system of wearable electronic products has become a bottleneck in the development of the wearable field.Triboelectric Nanogenerator(TENG)is considered as one of the candidates that can solve this problem.It utilizes frictional electrification and electrostatic induction to convert the mechanical energy of human movement into electrical energy storage and utilization.The properties of material and the size of the effective friction area are mainly factors of TENG output.At present,researchers mainly use etching or corrosion to create a large number of microstructures on the surface of the friction material to increase the effective friction area,thereby increasing the power output of TENG.However,these methods are complicated and costly,which is not conducive to the commercialization of TENG.Electrospinning as a traditional technique for preparing one-dimensional nanomaterials,has the advantages of simple operation,no need for expensive and precise instruments,low cost,and continuous production.The surface of the electrospun nanofiber membrane has a large number of nano-microstructures,soft and has a certain degree of breathability.After some treatment,it can have water washability and durability.These advantages make it integrated into the clothing without affects the daily use and breathability of clothing.Electrospinning technology plays a huge role in the power output and application of TENG.In this subject,the nanofiber membrane is prepared by electrospinning,and then as a friction material to design and manufacture a TENG to improve its output performance,and also has the advantages of durability,washability,etc.,and improve the air permeability of TENG through post-treatment.So that TENG can be worn like clothes.Then,through a special circuit design,it can be integrated into the clothes.The mechanical energy generated by the movement of the human body can be collected and converted into electrical energy to power some microelectronic devices,and it can meet the performance of the clothes such as breathability,washable and durability.The research results of this topic are as follows:(1)Adjust the blending ratio of silk fibroin(SF)and polyurethane(PU)to electrospinning nanofiber membranes with certain mechanical properties,which are breathable and washable.(2)Using electroless deposition(ELD)technology,using polyethylene terephthalate(PET)fabric as substrate material,to fabricate a flexible,stretchable,and breathable conductor by ELD,and take the conductor as the electrode to fabricate TENG.(3)The nano-fiber membrane was used as a friction material,and the flexible conductor was used as an electrode to design and assemble a TENG.After post-treatment,the TENG with good output performance,a certain degree of air permeability and washability was successfully prepared. |
