电化学是研究电能与化学能相互转化的一门学科，主要研究电极与电解液溶液接触形成的界面的基本物理化学性质，特别是通过电流时这一界面上发生的电极过程。电化学应用范围广泛，在国民经济中发挥了巨大的作用。实际应用大致分为：电合成无机物和有机物；电池与电容器；金属的提取与精练；金属的腐蚀和防护；表面精饰；电解加工；电化学分离技术在废水处理方面的应用；电分析测试技术和传感器技术；生命和生理科学技术中的电现象和电化学应用等。本课程主要阐述电解质、“电极/电解质”界面的基本结构和性质、电极过程的基本动力学性质、动力学参数的测定方法、控制步骤及研究方法等，并侧重实际电化学系统的介绍与分析，包括化学电源、工业电解、金属表面处理及防护等。将电化学基本理论与实际应用和器件设计相结合，讨论电化学研究的发展趋势，扩大学生的知识面，并使学生了解电化学的前沿动态和最新进展。

Electrochemistry is concerned with a conversion between electricity energy and chemical energy, encompassing the fields of electrolyte solutions and molten salt electrolytes, as well as electrode process and phenomena at charged interface. Electrochemical technology has wide applications in the daily-life and supplies a support to the present-day industrial economy. Examples are found in the production of chemicals; in primary and secondary batteries and fuel cells; in electrorefining; in corrosion; in electroplating and electromaching. In addition, electrolytic solutions are encountered in desalting water and in biology. The purpose of this course is to present the basic principles of electrode and some of its applications in a simple and concise way, assessing the future trends in research and development and discussing about the many other disciplines which can make use of electrochemistry. The forum is also intended to present electrochemical principles and its applications in a form accessible to students so that they can grasp the basic theory and practices and will be aware of the potentialities of this subject for the future needs of mankind.