Lithium-metal batteries pack more energy in the same weight than lithium-ion batteries, promising lighter electric vehicles, ones able to go longer distances. To prevent issues with them, additives, in this instance nylon, can be used to make the battery interface stable, reduce inefficiency, and increase life span. It can be dissolved into a battery’s electrolyte using mild solvents.
https://www.kaust.edu.sa/en/news/the-future-of-batteries-it’s-in-your-closet