Citation:
Electrical energy is energy that comes from moving electric charges. It can be produced through various means such as chemical reactions, like redox reactions, which generate an electric current.
An electrochemical cell is a device that converts chemical energy into electrical energy through redox reactions.
A battery consists of multiple electrochemical cells connected together and provides portable electrical energy.
Also known as a voltaic cell, this type of electrochemical cell uses spontaneous redox reactions to produce electrical energy.