This book provides readers with a comprehensive understanding of fuel cells, including their fundamental principles, technical features, and practical applications. Fuel cells, as an ideal way of hydrogen utilization, are of great significance in promoting the hydrogen society. The aim of this book is to introduce the basics of various fuel cells and to provide a detailed description of some important research fields in PEMFC, such as catalysts, systems, and degradation. The book is intended for undergraduate and graduate students who are interested in energy conversion technology, researchers investigating hydrogen energy, and engineers working on renewable energy or other energy storage applications.本书为读者提供了对燃料电池的全面了解，包括其基本原理、技术特征和实际应用。燃料电池作为氢气利用的理想方式，在推动氢能社会发展方面具有重要意义。本书旨在介绍各种燃料电池的基础知识，并详细阐述质子交换膜燃料电池（PEMFC）中的一些重要研究领域，如催化剂、系统和退化。本书面向对能量转换技术感兴趣的本科生和研究生、研究氢能的研究人员以及从事可再生能源或其他储能应用的工程师。