Macauluy Culkin

How does a battery store and release energy?

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3 Answers

Willie B. good Profile
Willie B. good answered

Batteries don't actually store energy, the space between the electrodes is filled with an electrolyte an iconic liquid that conducts electricity.

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Call me Z
Call me Z commented
It’s actually an ion-charged electrolyte paste, but the answer is spot on.
Ray Dart
Ray Dart commented
You have to be a bit careful with the "storing" bit. If you charge an accumulator (like a car battery) you are certainly placing energy inside it, hence the term "Potential Difference" when referring to voltages generated by a battery. That "Potential" is Potential Energy.
Willie B. good
Willie B. good commented
:)
Darren Wolfgang Profile
Darren Wolfgang answered

“You cannot catch and store electricity, but you can store electrical energy in the chemicals inside a battery.” ... More specifically: During a discharge of electricity, the chemical on the anode releases electrons to the negative terminal and ions in the electrolyte through what's called an oxidation reaction.

https://engineering.mit.edu/engage/ask-an-engineer/how-does-a-battery-work/

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