The Daniell cell is perhaps the first practical purpose battery ever. It was an electrochemical cell developed by the English chemist John Daniell in 1836. The cell offered a long-lasting source of power.
Let’s see how the cell works. Daniell cell, consist of a copper pot filled with a copper sulfate solution, in which was immersed an unglazed earthenware container filled with sulfuric acid and a zinc electrode. The earthenware barrier which is porous, allows ions to pass through, but keeps the solutions from mixing.
This cell produces current like a voltaic cell does, but with more efficiency. It soon became the industry standard for use. A voltage of over one volt is produced by a Daniell cell. To get a little more voltage, one has to increase the concentration of the solution in which the electrodes are dipped.
