eli5: How exactly are recharable batteries recharged?

Question

I know that in a normal battery once the electrons have made their way from the anode to the cathode the battery dies, but rechargeable batteries are able to sort of reset the battery once it’s been put on charge.

Every time I watch a YouTube video on rechargeable batteries all they say is “We do this by forcing the electrons back to the anode” without explaining exactly how that works and its driving me up the goddamn wall.

In: 15

Answer 1

A battery has a specific voltage. To recharge a rechargeable battery, you put a slightly higher voltage on the electrodes. The battery behaves sort of like a resistor while the electrochemical reactions are going in reverse.