Energy Devices in Engineering Chemistry

An electrochemical cell is a device that generates electricity from a spontaneous redox reaction or uses electricity to drive a non-spontaneous redox reaction. It consists of two electronic conductors (anode and cathode), an ionic conductor (electrolyte), and a metal wire (electron conductor) to link the electrodes.

The two types of electrochemical cells based on ΔG are galvanic (voltaic) cells and electrolytic cells.

A galvanic cell generates electrical energy from a spontaneous redox reaction, while an electrolytic cell uses electrical energy to drive a non-spontaneous redox reaction.

<p>Three examples of electrode materials used in electrochemical cells are semi-conductors, electrode materials with examples, and metal wires.</p> Signup and view all the answers

<p>Some examples of energy devices discussed in Module 4 are electrochemical and electrolytic cells, Li ion secondary batteries, supercapacitors, fuel cells, and solar cells.</p> Signup and view all the answers