Ionic conductors are materials that allow the flow of electric current through the movement of ions. These materials typically include certain salts, acids, and bases when dissolved in water or melted. In ionic conductors, positive and negative ions move freely, enabling the conduction of electricity. Common examples of ionic conductors are sodium chloride (table salt) when dissolved in water and potassium hydroxide in its molten state. These substances are essential in various applications, including batteries and electrolysis, where the movement of ions is crucial for energy transfer and chemical reactions.