氢燃料正迅速成为一种清洁能源载体解决方案，有可能使多种行业脱碳，包括或主要是运输行业。燃料电池电动汽车（Fuel cell electric vehicles，FCEV）将储存的氢气与大气中的氧气进行电化学结合，以高效发电，同时只产生水蒸气和少量热量，被认为是一种改变游戏规则的技术。所谓的氢经济有可能取代传统的以化石燃料为基础的经济，交通运输业是氢领域的先行者。

过去十年中，在制氢和燃料电池技术领域取得的技术进步，使目前的汽车应用采用了基于氢的解决方案。成本降低、气候变化和碳税机制正在促使许多政府、制造商和消费者转向氢动力汽车。与其他竞争性清洁能源技术（如电池动力）相比，氢的主要缺点是氢燃料加注和燃料电池电动汽车的成本高。然而，规模经济的应用将进一步降低成本，并在汽车应用中广泛吸收氢。

这是SAE EDGE&trade；研究报告探讨了氢和燃料电池系统在汽车行业的机遇和挑战。在专家贡献者的帮助下，考虑了几个不同的技术、经济和安全方面，以更好地了解这一新兴的氢基汽车行业。虽然电池电动汽车（BEV）和燃料电池电动汽车（FCEV）的支持者之间的争论仍在继续，但本报告讨论了后一种技术中尚未解决的问题，并对汽车行业的氢和燃料电池系统进行了批判性概述。 最后，报告总结了一系列针对行业和政府利益相关者的建议，以实施和推进氢运输项目

注:SAE EDGE&trade；研究报告旨在确定和阐明移动行业感兴趣的新兴但尚未解决的技术中的关键问题。SAE EDGE&trade的目标；研究报告旨在促进讨论和工作，以期促进和加快已确定问题的解决。SAE EDGE&trade；研究报告并不是为了解决他们所发现的问题，也不是为了让任何主题得到进一步的审查。

Hydrogen fuel is rapidly emerging as a clean energy carrier solution that has the potential to decarbonize a variety of industries, including, or predominantly, the transportation industry. Fuel cell electric vehicles (FCEVs), which electrochemically combine stored hydrogen with atmospheric oxygen to efficiently generate electricity while producing only water vapor and small amounts of heat, are heralded to be a game-changing technology. The so-called hydrogen economy has the potential to displace traditional fossil fuel-based economy, with the transportation industry being the first mover in the hydrogen space.

Technological advances made in the last decade in the areas of hydrogen generation and fuel cell technology have enabled the current uptake of hydrogen-based solutions for vehicle applications. Reduced costs, climate change, and carbon tax mechanisms are driving many governments, manufacturers, and consumers toward hydrogen-powered vehicles. The major drawbacks of hydrogen compared to the other competing clean-energy technologies (e.g., battery power), is the high cost of hydrogen refueling and FCEVs. However, application of the economy of scale will enable further cost reduction and broad international uptake of hydrogen in automotive applications.

This SAE EDGE™ Research Report explores the opportunities and challenges of hydrogen and fuel cell systems in the automotive industry. With the help of expert contributors, several different technological, economic, and safety aspects are considered to develop a better understanding of this emerging hydrogen-based automotive industry. While debates between proponents of battery electric vehicles (BEVs) and FCEVs continue, the current report discusses the unsettled issues in the latter technology and presents a critical overview of the hydrogen and fuel cell systems in the automotive industry. Finally, the report concludes with a series of recommendations aimed at the industry and government stakeholders for implementing and advancing hydrogen transportation projects.

NOTE: SAE EDGE™ Research Reports are intended to identify and illuminate critical issues in emerging, but still unsettled, technologies of interest to the mobility industry. The goal of SAE EDGE™ Research Reports is to stimulate discussion and work in the hope of promoting and speeding resolution of identified issues. SAE EDGE™ Research Reports are not intended to resolve the issues they identify or close any topic to further scrutiny.