How batteries work?

An Animated Guide to the Science of Batteries

 
We would like to offer our deepest appreciation to the SaveOnEnergy team for sharing this fascinating article and the animations that they developed. Please visit SaveOnEnergy’s about page for more about their mission or go straight to the original article at SaveOnEnergy®. Full attribution belongs to them.

We would like to offer our deepest appreciation to the SaveOnEnergy team for sharing this fascinating article and the animations that they developed.

Please visit SaveOnEnergy’s about page for more about their mission or go straight to the original article at SaveOnEnergy®.

All content, including graphics are attributed to SaveOnEnergy.com.

Did you know the same battery we use today was invented in 1887? With only minor upgrade, the ‘dry cell’ battery was a scientific victory because they were liquid free and could be used in portable devices. Previously, batteries were large fragile glass containers with metal rods, which made them not the most household-friendly items. That said, old ‘wet cell’ batteries can still be found in modern day industries like automotive or telecommunication—you can even create your own battery at home using items around the house!

From turning on a lamp in your home to running solar panels, batteries play a large role in our everyday lives. The lowly battery is more than just a simple tool—the technology hasn’t changed much for centuries—and we depend on them more than you may think. In the U.S. alone, we throw away three billion batteries annually, which adds up to a lot of power.

Which got us to wondering, how do batteries work? Batteries consist of an anode (the negative end), a cathode (the positive end) and electrolytes. When a battery is plugged in, the electrolytes are provided a circuit to move between the two ends, which creates the power.

Seems simple, right? But can you name other important parts of the process, like oxidation or reduction? What about how a rechargeable battery works? We’ve outlined the entire process below in a helpful animation—so that the next time you’re turning on the television, you can visualize the entire cycle.

 
TEDEd — How Batteries Work

TEDEd — How Batteries Work

 
Joanna Cuttsoxidation, reduction, batteries, chemistry