Metal-air Batteries for Wearable Electronics

Abstract

Our modern society is a fast-moving society where the growth of wearable electronic devices is rapidly increasing and warrants wearable and durable power sources, particularly, apparel with metal-air batteries, possessing high energy density. Traditional metal-air batteries are oversized and rigid, with no useful components or adaptable cell arrangement, and unable to endure the varied deformable circumstances that are a deciding factor in the fabrication of wearable devices. As a result, this chapter offers a few case studies of metal-air batteries, particularly, zinc-air batteries, lithium-air batteries, and aluminium-air batteries, for wearable electronics describing an overview of various flexible components e.g., flexible electrolyte (gel/polymer electrolytes) and flexible electrodes made up of carbon-based materials, conductive polymers, metals and their oxides, etc. required for their fabrication. Such attire with metal-air batteries can endure various deformable situations including twisting, folding, rolling, bending, and stretching and are the key precondition for producing excellent gear with electronic devices for modern society.