Polyaniline is widely used in the electronics industry due to its conductive properties. It is commonly employed in the production of sensors, particularly for detecting gases like ammonia and carbon dioxide. Its ability to change conductivity in response to environmental factors makes it suitable for use in smart packaging and anti-static coatings. In the field of energy storage, polyaniline is utilized in supercapacitors and batteries, enhancing their performance and efficiency. Additionally, it finds applications in corrosion protection coatings for metals, providing a durable and effective barrier against environmental degradation. Its versatility also extends to the development of electrochromic devices, which are used in smart windows and displays.