The unfolding facts about batteries tell us where they came from, and hint at where they are going. They once were handy for portable devices, but now they have matured to power utility grids and electric vehicles. They also bring light to our homes during power interruptions.
The Truth Behind Unfolding Battery Power
All batteries work the same way. This is regardless of whether they are single cells in our flashlights, or multiple cells in container-sized batteries filled with renewable energy. Although the materials inside them do vary, depending on how we use them.
Batteries store and release their electrical energy by moving electrons from one side to the other via their terminals, and vice versa. So a battery or cell needs a negative electrode where it stores electrical energy, and a positive electrode from where it delivers it.
Those fundamentals will remain the same for the batteries we purchase in stores, regardless of the unfolding facts about batteries we mentioned. We can imagine them like the top dams in hydro-power systems, that also store energy but of a different kind.
When an operator opens the sluice gates or valves, the water flows down the hill and releases this energy through turbines. We could later return the water to the top dam by using turbines as pumps. Could we compare this to recharging a battery?
New Roles for Batteries – The Facts
The two electrodes use different materials, and these are evolving too. Battery scientists are constantly testing and tweaking different options to suit various applications. The days of ‘one-size-one-chemistry-fits-all’ are over. Nowadays, we must choose the right battery for our application.
We must decide which battery is best for our particular device. Do we want the most powerful battery regardless of cost? Or do we want safety and reliability we can trust?
Nowadays, there is another factor to also consider. Will someone be able to recycle our battery after we have used it, and is the technology commercially available to do this?
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