| 학회 | 한국재료학회 |
| 학술대회 | 2017년 봄 (05/17 ~ 05/19, 목포 현대호텔) |
| 권호 | 23권 1호 |
| 발표분야 | C. 에너지 재료 분과 |
| 제목 | Development of Rock-Salt Structured for High Energy Density Lithium-Ion Batteries |
| 초록 | Lithium-ion batteries has been highly used for rechargeable power storage. For the mobile devices, electric vehicle, laptop, and energy storage devices, Lithium-ion battery’s market is gradually increasing by 10% every year. There are many studies into increasing lithium-ion battery performance; the energy density, cycle life, stability and cost effectiveness. The main way of increasing the energy density of lithium-ion battery is to use electrode material that exhibit high capacities owing to battery material structure. However, commercial lithium-ion batteries are mostly layered, olivine, and spinel structured, these structures do not allow the maximum lithiation/delithiation of lithium-ions. Recently, layered Li-excess cathode material can deliver much higher capacities compare with traditional layered Li-material through the design of more lithium-ion space. This design notwithstanding a new structure; the rock-salt structure can accommodate more lithium-ions compared to the above mentioned structures. We designed rock-salt structured lithium-ion cathode materials, Li3NbO4, on a nanoscale by sol-gel method. Based on the rock-salt structured material, Li3NbO4 was doped with Ni2+ ions to increase the energy density. We will evaluate Ni-dope Li3NbO4 cathode material by XRD, charge-discharge Test, SEM. |
| 저자 | Soonhyun Hong1, Jihwan Park2, Beomhee Kang1, Hanul Yang2, Chunjoong Kim1, Dojin Kim2, Emmanuel Owusu Afranie1 |
| 소속 | 1Department of Materials Science and Engineering, 2Chungnam National Univ. |
| 키워드 | Cathode Materials; Rock-Salt Structure; Li3NbO4 |
