Effect of Electric Properties according to Volume Ratio of Supercapacitor and Battery Capacitor in Hybrid Energy Storage System

The development of technology that combines supercapacitors and lithium-ion batteries by externally connecting them in parallel is ongoing. This study examines the correlation between volume ratio electrical characteristics a cell made internally battery capacitor with Li4Ti5O12 as anode active material supercapacitor parallel. It was found increasing occupied led to increased energy resistance, resulting decreased output characteristics. Conversely, decrease IR drop during discharge temperature when evaluating cycle current 20C. also examined behavior distributed charging discharging process based on capacitor. Analyzing capacitors could potentially lead new type storage device.