March 2025

✅It is an electrochemical device that converts the chemical energy of hydrogen and oxygen into electricity through a series of redox reactions. ✅Unlike traditional batteries, which store chemical energy internally, PEM fuel cells require a continuous supply of hydrogen fuel and oxygen (typically from the air) to sustain the chemical reaction and generate electricity. ✅Working Principle: The working principle involves an electrochemical reaction where hydrogen gas is fed into the anode, oxidized to release protons, which then travel through a polymer membrane to the cathode, where they react with oxygen to produce electricity and water. ✅They offer an environmentally friendly solution with high power density in a compact size. ✅They run on hydrogen fuel, which can be stored and transported for refuelling, and require significantly less maintenance than traditional backup power sources. Applications: ✅These fuel cells provide reliable electricity with quick start-up times and operate at relatively low temperatures, making them a viable alternative to diesel generators. ✅An innovative hydrogen fuel cell-based backup power solution for telecom towers, developed using a plug-and-play model can support national renewable energy goals while ensuring seamless connectivity for millions and promoting clean energy in the telecom sector. ✅Portable power: specific applications include laptops, mobile phones, battery chargers and unmanned aerial vehicles.