电化学知识在中学无机化学基础理论中占有非常重要的地位,它建立在重要的化学反应理论知识之一——氧化还原反应之上,而且涉及到物理中的电学知识,因此综合性比较强,是高中化学的重点、难点之一,也是近年高考化学的必考内容,重现率非常高。自2005～2009年连续5年来,高考化学试题(全国卷 Electrochemical knowledge occupies a very important position in the basic theory of inorganic chemistry in secondary schools. It is based on the redox reaction, one of the important theoretical knowledge of chemical reactions, and involves the knowledge of physics in physics. Therefore, High school chemistry is one of the key, one of the difficulties, but also the college entrance examination in recent years, the compulsory content of chemistry, the recurrence rate is very high. From 2005 to 2009 for 5 years in a row, the college entrance examination chemistry (national volume