Abstract: Hydrogen-powered electric vehicles (FCEVs) have emerged as a transformative solution for sustainable transportation, leveraging the high energy efficiency of electric drivetrains combined with the zero-emission potential of hydrogen fuel. This paper presents a comprehensive review of recent innovations in proton exchange membrane (PEM) fuel cell technologies, advanced system integration approaches, and intelligent energy management strategies that collectively enhance the performance and efficiency of FCEVs. Significant advancements in high-performance catalysts, durable membrane electrode assemblies (MEAs), and next-generation bipolar plates have substantially improved fuel cell durability, energy density, and cost-effectiveness. Concurrently, developments in lightweight composite materials, optimized aerodynamic designs, and vehicle control systems contribute to reduced energy consumption and extended driving ranges. Smart energy management systems incorporating regenerative braking, thermal management, and hybridization with auxiliary battery storage systems further elevate operational efficiency. In addition to technical advancements, this study critically examines persistent challenges including hydrogen production pathways, high-pressure storage solutions, safety concerns, and the limited refuelling infrastructure. It also underscores the importance of robust policy frameworks, strategic investments, and financial incentives aimed at fostering both infrastructure growth and consumer adoption. A coordinated effort among governments, industries, researchers, and consumers is vital to overcome existing barriers and drive large-scale deployment. Future research directions are proposed, focusing on improving hydrogen supply chain sustainability, enhancing fuel cell recycling processes, and integrating FCEVs into smart grid systems. Ultimately, the widespread adoption of hydrogen-powered electric vehicles will depend on continuous innovation, cross-sector collaboration, and a global commitment to achieving carbon-neutral transportation.
Keywords: Hydrogen Fuel Cell Vehicles (FCEVs), Energy Efficiency, Fuel Cell Technology, Sustainable Mobility, Hydrogen Storage, Smart Energy Management, Clean Transportation, Renewable Energy Integration.
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