You will find batteries everywhere as the modern world is used to these sources. Every device that is used in daily life runs on these batteries. So if these devices were not invented, the other things we are using in this modern world would not be available for us.
But there is confusion that how these small-sized cells work to run big machines and devices?
From the definition of electricity, we know that it is a flow of electrons that are negative charge through a wire which is called a circuit.
The structure of Batteries:
Batteries are composed of three parts, a cathode, anode and electrolytes, the anode got a negative charge, a cathode positive charge. The cathode and anode are attached to an electric circuit to pass current.
When the chemical reaction starts the electrons are made at anode which causes the difference in electric current between the positive and negative charge. The electron then starts trying to balance this difference and electron start flowing towards the positive charge where the electrons are less.
When the circuit becomes closed, the electron group together at cathode and energy is produced. This is the way through with electron flow start because of potential cause.
The chemicals at anode and cathode are changed to stop the electron flow through the electrochemical processes. Because of this, a limited power is created in the battery.
A solar panel is used while the battery is on recharge mode to alter the direction of electron flow.
The electrodes are made of a conductive material through which current can be passed. The function of these both is different from one another. The cathode is connected with a positive end while the anode at the negative end. When the battery is discharge, the current leaves which is used to charge something.
The anode which is connected to the negative end of the battery during discharge, the electric current enters or the electron leaves its place.
The electrolyte is present between the anode and cathode the electrolyte is in a liquid or gel-like a solution that contains ions or half charge ions. An electric current in the battery is created when the ions are combined with the substance in the solution.
The battery can be rechargeable and non-rechargeable. Means batteries are of two types, a primary battery and secondary. The primary battery can’t be rechargeable means it doesn’t need to recharge after using it while the secondary can be rechargeable.