No, they don't store electricity. They generate electricity by means of a chemical reaction.
So recharging a battery involves draining the spent chemicals and pouring in new fresh ones?
You can do it that way in batteries that let you replace the electrolyte.
you use electricity to reverse the chemical reaction, then the chemical reaction can repeat itself. Thats all recharging is doing.
Which in essence is "storing" the electricity.
One could say the same about storing data in a computer, when it involves basically changing the state of already existing bits.
If we were overly technical, you could also say that electricity doesn't flow through wires, but rather say that electrons "push" each other around to generate electricity.
You arent storing electricity though you are converting it into chemical energy that gets converted back into electrical energy. It would be the same as using electricity to lift a weight up high then using the weight of that rock later to turn a generator.
If that counts as storing electricity then anything that can create electricity cught to be considered storing it. its valuable to understand how this works because you cant put electricity in a jar like people seem to think, you can use it to create chemical reactions that store energy though.
Good example with "storing" electricity by lifting a weight then later letting it fall and "releasing" the electricity.
I think the disconnect comes from the two views: how it's used, and how it works inside. Even "chemical" energy is just an abstraction for something more fundamental involving quantum states. The energy is being stored by a reconfiguration of the quantum states. From the outside, though, it's a sealed object with two terminals that you either send a current into, or draw from. From the outside it does effectively store electric energy and give it back.
Chemical energy is stored in a battery.
Capacitors store electrostatic energy.
Both can release/create electricity.
Not true. Haven't you ever put your car battery on a charger?
Meh.
Overly complex fuel tanks that return the electricity produced elsewhere
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