Metal-Air Battery Market by Metal (Aluminum, Iron, Lithium, Zinc, and Others), Voltage (Low (<12V), Medium (12-36V), and High (>36V)), Type of Battery (Primary, and Secondary / Rechargeable), Electrolyte (Liquid-based, Polymer-based, and Solid-based), Application (Electric Vehicles, Electronic Devices, Military Electronics, Stationary Power, and Others), Geographical Regions, and Key Players – Trends and Forecast 2026-2040