Supercapacitor

A supercapacitor is an electrical energy storage device that possesses unique characteristics compared to batteries, fuel cells, and conventional capacitors. This device is often referred to as an electrochemical capacitor or ultracapacitor. Structurally, a supercapacitor consists of several main components that interact with each other to achieve optimal energy storage performance. These components include electrodes, separators, electrolytes, and conductive substrates. Supercapacitors can be classified into three main types based on their charge storage mechanisms: electrical double-layer capacitors (EDLCs), pseudocapacitors, and hybrid supercapacitors.