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University of Ulsan (UOU)
Jung's Group
University of Ulsan (UOU)
Li-Air Batteries
Current Li-ion batteries can have an energy density of 250 Wh/kg in favorable cases, but which is not sufficient for offering more than 300 miles of all-electric driving range in EVs. Therefore, we need to develop advanced Li-based rechargeable batteries. Nonaqueous Li-air (O2/CO2) batteries with high theoretical energy density can be a breakthrough, achieved by air-breathing cathode materials, stable Li metal anode, and solid-state electrolytes.
Li-Air (O2/CO2) Batteries Operating in Ambient Air
Nonaqueous Li-air batteries using O2 or CO2 gas have become a research spotlight due to the highest theoretical & practical capacities that are ~4 times more than those of the current Li-ion batteries. In addition to Li-O2 batteries, Li-CO2 batteries have recently emerged as attractive battery technology in terms of eco-friendly CO2 reduction as well as electricity storage. Our ultimate goal is to make Li-air batteries operatable in ambient air containing O2, CO2, N2, and H2O.
Flexible Li-Air Batteries
Flexible Li-air batteries with extremely high energy density have attracted considerable attention as an alternative to flexible Li-ion batteries with low energy density. Although it is widely anticipated that flexible Li-air batteries would be compatible with portable/wearable electronics and Internet-of-Things (IoT), a flexible cathode and electrolytes are the most important constituents in flexible Li-air batteries. Our group is focusing on unlocking the potential of flexible electrode and electrolyte materials.
