Cell Phone Batteries are Always Running Low? Super Capacitor Could Lead the

Supercapacitors are a new type of capacitors whose capacitance far exceeds the capacitance of traditional capacitors and have ultra-high-energy storage density. By storing opposite charges on two isolated plates, supercapacitors can store large amounts of energy. Unlike traditional capacitors, supercapacitor battery for phone no longer use solid dielectrics but use electrostatic double-layer capacitors and electrochemical pseudocapacitors. Compared with traditional batteries, supercapacitors have higher power density (300W/kg~5000W/kg, about 5~10 times that of batteries), faster charge and discharge speed(charging for 10 seconds to 10 minutes can reach more than 95% of its rated capacity), and more charge-discharge cycles (deep charge and discharge cycles can be used up to 1 to 500,000 times, which means longer service life), and higher storage and discharge efficiency (high current energy cycle efficiency exceeds 90%). Supercapacitors are mainly used in scene...