Electrochemical Application For
Advanced Energy System Labortary.
Lithium-ion batteries are made of various metallic compounds(anode and cathode material) and organic compounds(electrolyte), hence, they are not stable and very vulnerable to many types of abuse conditions from outside. If any external abuse condition is applied to a lithium-ion battery, it causes an internal chemical reaction, which leads to a chain reaction and rapid temperature rise. This phenomenon is called as thermal runaway. Once it happens, there are hardly any measures to stop temperature increase and a fire.
Researching various abuse conditions causing thermal runaway of lithium-ion battery
Measuring mass fraction and mass flow rate of vent gases during thermal runaway
Performing charging/discharging experiment to determine electrochemical parameters of lithium-ion battery
Thermal runaway and electrochemical heat generation modeling using CFD through the data of experiments
Energy storage system(ESS) is an efficient means of storing large amount of electricity. It usually consists of lithium-ion batteries, which can be charged/discharged freely. Lithium-ion batteries have many advantages, however, also sometimes cause a dangerous safety problem, which is a fire. The main reason is “thermal runaway”.
To prevent a fire of ESS by analyzing various factors causing thermal runaway
To establish how to manage fire extinguishing facilities to stop a fire spread, and escape safely
To minimize economical loss due to limited operation of ESS(SOC limitation, etc.) by identifying exact reasons of a fire
Fire experiment of lithium-ion battery