Chapter 9 - Electrochemical energy

Abstract

Electrochemical energy concerns electrochemical processes in which charged particles are involved besides neutral molecules. The energy level of a charged particle is expressed by its electrochemical potential, which consists of a chemical potential and an electrostatic potential. The electrode potential frequently used in describing electrochemical energy conversion is a physical intensive variable corresponding to the energy level of electrons or ions in electrodes. This chapter discusses the energy level of charged particles, the electrode potential, the electromotive force, and the equilibrium of charge transfer reactions. It also examines the chemical potential of hydrated ions. Charged particles such as ions and electrons play an important role in what is called electrochemical processes. The chapter briefly discusses the energy level of ions and electrons in an electrochemical system.