Zinc batteries are a more sustainable alternative to lithium-ion batteries due to its components being highly recyclable. With the improvements in the screen printing technology, high quality devices can be printed with at high throughput... more
Zinc batteries are a more sustainable alternative to lithium-ion batteries due to its components being highly recyclable. With the improvements in the screen printing technology, high quality devices can be printed with at high throughput and precision at a lower cost compared to those manufactured using lithographic techniques. In this paper we describe the fabrication and characterization of printed zinc batteries. Different binder materials such as polyvinyl pyrrolidone (PVP) and polyvinyl butyral (PVB), were used to fabricate the electrodes. The electrodes were first evaluated using threeelectrode cyclic voltammetry, x-ray diffraction (XRD), and scanning electron microscopy before being fully assembled and tested using charge-discharge test and two-electrode cyclic voltammetry. The results show that the printed ZnO electrode with PVB as binder performed better than PVP-based ZnO. The XRD data prove that the electro-active materials were successfully transferred to the sample. However, based on the evaluation, the results show that the cathode electrode was dominated by the silver instead of Ni(OH)2, which leads the sample to behave like a silver-zinc battery instead of a nickel-zinc battery. Nevertheless, the printed zinc battery electrodes were successfully evaluated, and more current collector materials for cathode should be explored for printed nickel-zinc batteries.
This study focuses on the preparation of various polymeric nanofibers using new industrial production equipment – a wire electrospinning system. The disadvantages of each polymeric nanofiber were improved by mixing suitable... more
This study focuses on the preparation of various polymeric nanofibers using new industrial production equipment – a wire electrospinning system. The disadvantages of each polymeric nanofiber were improved by mixing suitable polymer/polymer-solvent/solvent systems. A total of 9 types of polymers (polyamide, polyvinylidene fluoride, polyacrylonitrile, polyurethane, polysul-fone, chitosan, cellulose acetate, polyvinyl butyral, and polycaprolactone) and their mixtures were electrospun using a wire electrospinning system. The resultant fiber surface morphology showed that the wire electrospinning method is suitable for the production of various polymers on an industrial scale. Moreover, polymer mixtures changed the adhesion properties, increased productivity and reduced the fiber diameter of nanofibers.
In idea of enhancing UV rays filtering properties in windshield glass in automobiles industries this study was experimented with Nano fillers Silica (SiO2) and Alumina (Al2O3).These two Nano fillers were primarily used as a binding... more
In idea of enhancing UV rays filtering properties in windshield glass in automobiles industries this study was experimented with Nano fillers Silica (SiO2) and Alumina (Al2O3).These two Nano fillers were primarily used as a binding material between PVB (Polyvinyl Butyral) layers of two pairing windshield glass. Nano fillers of SiO2 and Al2O3 weighing 2gms each are manually added to the layer of the glass and this sandwiched glass goes through a heat treatment in a furnace at 65°C-70°C, along with Nip roller pressure maintenance of 0.6 Mpa to 0.7 Mpa with a glass thickness of each 2.5mm, PVB thickness of 1.52 mm, and then the laminated glass rolling out was pressed and later taken into an autoclave glass steam binding process, where the glass can bond with Nano fillers up to 4 hours as a post operation. From the newly fabricated glass, Samples with dimensions of 20x45 mm and a thickness of 5 mm were prepared. To evaluate the UV shielding properties of these Nano filler fabricated glass, these samples were tested for optical clarity and UV penetration with wavelengths ranging from 280nm to 400nm
