This book on Electrochemistry, is consisting of five chapters. This book will be helpful for those students studying the electrochemistry in the introduction level, graduation and post-graduation level in colleges and universities. It is the authors appeal to the students and readers of this book to pick up the useful facts from the books and use it well. Contents:– Introduction; Concept of Ions; Electrodes; Electrolytes and Solvents; Chemical and Electrochemical Cells