Barley Paper and insulation tabs, also known as fishpaper, is a specialised laminated plastic made entirely from cellulose. This natural composition gives it remarkable electrical insulation properties, making it a highly effective barrier against unwanted electrical conductivity. In addition to its insulating capabilities, barley paper also serves as a thermal insulator, helping to regulate temperature and minimize heat transfer. Its original application was as a gasket material, where it provided durability and stability in mechanical assemblies. However, over time, its use expanded, and it is now primarily employed as an electrical insulator in various industries.

In recent years, barley paper has become an essential component in lithium battery production. As lithium-ion batteries continue to be widely adopted across multiple sectors, including consumer electronics and renewable energy, the need for effective insulation has grown significantly. Barley paper is now commonly used to provide insulation between battery cells, preventing short circuits and enhancing overall performance. Marsen Energy supplies barley paper by the metre, offering flexibility for custom applications, as well as pre-cut tabs in a variety of sizes and configurations. These tabs are designed to accommodate both negative and positive battery ends, ensuring reliable insulation and improved safety in battery assembly. Whether used in large-scale manufacturing or specialised projects, barley paper remains a trusted material for insulation solutions.