Flexible Paper Battery (FPB) Market Size By Type (Thin-film Battery, Printed Battery, Curved Battery, Foldable Battery), By Voltage (Up to 1.5V, 1.6V to 2.0V, 2.1V & Above), By Chargeability (Rechargeable, Single-use), Electrolyte, Material, Application & Forecast 2023 - 2032