How lithium ion battery works | Working principle?

A lithium ion battery is like a backpack that carries energy for your toy car or phone.

Imagine you have two rooms connected by a hallway, one room is lithium, and the other is carbon. When the battery is charging, tiny particles called ions travel from the lithium room through the hallway to the carbon room, bringing along some energy. This makes your toy car ready to zoom!

When you use the toy car, those ions go back, they return from the carbon room to the lithium room, and that’s how the battery gives off its energy.

Think of it like a food truck. When the battery is charging, it's like the food truck is bringing snacks (energy) to your friends in the other room. When you want to play with your toy car, the snacks go back to the food truck so you can eat them, that’s using energy.

These ions are like tiny helpers who move back and forth every time you charge or use your battery!