Abstract: Faraday's Law describes the quantitative relationship between electronic transfer and matter transformation during electrochemical reaction, which constitutes one of the fundamental theories for the modern electrochemical engineering. Faraday's Law denotes an alternative formation of the charge and mass conservation in electrochemical reaction. Nowadays, it has been used in many advanced and mature industrial fields, including electro-deposition industry, battery manufacture, Coulomb analysis processes and so on. For better understanding Faraday's Law, this paper reviews the background of basic idea of Faraday's experiment and the following proof, since we believe that a historical review will discover some important factors in the past, which can highlight our future research in the electrochemical field.

Key words: Faraday's Law, electrochemistry, electrolysis