Development of Lithium Metal Rechargeable Batteries
- Development Steps
- Li-S Battery Advantage
• Anode material with the highest theoretical capacity among solid cathode materials (1,675mAh/g)
• Relatively low operating voltage, lower cost than conventional cobalt (Co).
• Sulfur is less toxic and more environmentally friendly than conventional material.
• High energy density 2-3 times higher than LIB
- Retained Competence and Development Plan
• Research to improve life characteristics
• Research to the electrode reaction occurring at the solid-liquid interface
(Surface composition of carbon, three-dimensional structure, carbon content in cathode)
• Development of electrolyte solution related to poly sulfide
• Development of cathode structure and binder by volume change of cathode active material
• Research to increase the reversibility of lithium metal
- Patents (related to Li-S battery and Lithium metal-based battery)
- Application
Lithium sulfur batteries (Li-S) have the potential to be used in various applications where high energy density and low cost are required.
| Military | : Safety features and long-lasting power benefits for reserve battery, thermal battery, unmanned vehicles, portable electronics, and other devices |
| Aerospace | : High energy density and low weight benefits for satellites, drones and other unmanned aerial vehicles (UAVs) |
| Portable Electronics | : Smartphones, laptops, and other portable devices, where long battery life and light weight factors |
| Medical Devices | : Long lasting and reliable power sources in critical as pacemakers and other implantable device |
| Electric Vehicles (EVs) | : High energy density than Li-ion batteries for driving ranges of Evs with weight reduction |
| Renewable Energy | : Storage of energy generated by solar panels or wind turbines with cost reduction and efficiency |