How Batteries Works

In our daily lives, we are using many types of batteries around us. Such as in our smartphone, laptop, tv remote control, cars etc. However, we may didn't know how do batteries work.

How Batteries Works

Batteries have three parts, an anode (-), a cathode (+), and the electrolyte.  In an alkaline battery, the anode is typically made of zinc, and manganese dioxide acts as the cathode. And the electrolyte between and inside those electrodes contains ions.This is how batteries are made of. 

The cathode and anode (the positive and negative sides at either end of a traditional battery) are hooked up to an electrical circuit. We can see this type of batteries when buying AA or AAA batteries in our local shop. 

The chemical reactions in the battery causes a build up of electrons at the anode. This results in an electrical difference between the anode and the cathode. 

You can try by connecting a wire to the cathode and anode like the picture above, and you can see the bulb lighting. 

This is one way of describing how electrical potential causes electrons to flow through the circuit.

How Does Rechargeable Battery Work

In a rechargeable battery, however, the reaction is reversible. When electrical energy from an outside source is applied to a secondary cell, the negative to positive electron flow that occurs during discharge is reversed, and the cell's charge is restored.