“What are batteries?”


We learned about how galvanic cells are able to create a voltage difference through the use of chemistry. But a single galvanic cell can only provide a low voltage, and humanity requires alot of power, so how can we take this concept and expand upon to make it practical for common usage? Well, how about we just simply take  bunch of galvanic cells and hook them up in series? If we do that, then we will create a machine with a title that you are probably very familiar with, a battery. The batteries that we use everyday are simply devices that use chemical differences to create a voltage. Batteries come in two types, disposable and rechargeable. Disposable batteries are batteries that have a limited chemical supply and stop working once depleted, while rechargeables allow a current to flow in the reverse direction when plugged in to regenerate the battery (however, due to the second law of thermodynamics, each recharge will wear down the capacity of the battery)

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