In 1836, Daniell's modification of the simple electrical cell resulted in a longer-lasting source of power. It is known as the Daniell cell.
Daniell’s setup isolated the copper and zinc ions from each other, preventing polarization from interrupting the flow of electricity. At the same time, it allowed ions in the electrolyte to move between the two metals, necessary to complete the electrical circuit.
Let’s take a look at how this works.