Wet cell
A wet cell is a cell that contains a liquid electrolyte. Most batteries have a paste electrolyte. Car batteries have a liquid electrolyte. They are inconvenient because the electrolyte can be spilled. Most early batteries had liquid electrolytes. People still use wet cells where they need high power, such as in cars.
Wet Cell Media
A voltaic cell for demonstration purposes. In this example the two half-cells are linked by a salt bridge that permits the transfer of ions.
From top to bottom: a large 4.5-volt 3R12 battery, a D Cell, a C cell, an AA cell, an AAA cell, an AAAA cell, an A23 battery, a 9-volt PP3 battery, and a pair of button cells (CR2032 and LR44)