A Brief Review on Fuel Cell/Battery Based Hybrid Zero-Emission Power System for Transport: Critical Analysis, Current Challenges and Trends

In the last three years, many research papers have been published in the field of Hybrid Energy Systems based on Fuel Cells/Batteries, which highlight that the Zero Emissions objective for transport can be achieved soon, according to the requirements of transport regulations that have been recently revised relative to the proposed objectives for pollutant emissions, carbon footprint, etc. The main objectives of this paper are to analyze the new Hybrid Energy Systems proposed for vehicles, the new Management Systems proposed for these systems, highlighting their advantages and disadvantages compared to previously proposed solutions, emission reduction, etc. compared to previously proposed solutions. The contribution and novelty of the analysis refers to the critical analysis of the new proposed solutions and the presentation of current solutions and challenges for this field.