Battery
1. A battery is a device that stores chemical energy and converts it to electrical energy.
2. Batteries are a collection of one or more cells whose chemical reactions create a flow of electrons in a circuit.
All batteries are made up of three basic components: an anode (the '-' side), a cathode (the '+' side), and some kind of electrolyte (a substance that chemically reacts with the anode and cathode).
When the anode and cathode of a battery is connected to a circuit, a chemical reaction takes place between the anode and the electrolyte. This reaction causes electrons to flow through the circuit and back into the cathode where another chemical reaction takes place. When the material in the cathode or anode is consumed or no longer able to be used in the reaction, the battery is unable to produce electricity.
Batteries that must be thrown away after use are known as primary batteries. Batteries that can be recharged are called secondary batteries.
Corrosionpedia Dictionary https://www.corrosionpedia.com/
Merriam-Webster's Collegiate® Dictionary, Eleventh Edition https://www.merriam-webster.com/dictionary
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved
Романюк М. О., Крочук А. С., Пашук І. П. Оптика. — Л. : ЛНУ ім. Івана Франка, 2012. 564с.