| 학회 | 한국화학공학회 |
| 학술대회 | 2021년 봄 (04/21 ~ 04/23, 부산 BEXCO) |
| 권호 | 27권 1호, p.583 |
| 발표분야 | 에너지 환경 |
| 제목 | Heuristic approach for achieving outstanding cycling stability for High energy density Ni-rich layered cathode materials |
| 초록 | The partial substitution of Ni in Li[Ni0.90Co0.09M0.01]O2 (M: dopant) with different elements results in a wide variety of microstructures, ranging from highly oriented needle-like columnar primary particles to randomly oriented equiaxed primary particles. This enables the precise tailoring of the shape and orientation of the constituent particles of Ni-rich layered cathodes. Based on the survey results of different doping elements (Mn, Al, B, Sb, W, Nb, Mo, and Ta)1,2, it is heuristically determined that Li[Ni0.90Co0.09Ta0.01]O2 cathode exhibits the optimal microstructure and crystal structure conducive to long-term cycling stability (90% retention capacity after 2000 cycles)3-5, while providing a high capacity at full depth of discharge. The capacity and cycling performances exhibited by the Li[Ni0.90Co0.09Ta0.01]O2 cathode with an expected energy density provide a solution for overcoming the inherent hurdle of the Ni-rich layered cathode, meeting the demands for the next generation of electric vehicles. Energy Environ. Sci. 11, 1271 (2018). ACS Energy Lett. 4, 576 (2019). Adv. Energy Mater. 9, 1803902 (2019). Mater. Today 23, 26 (2019). ACS Energy Lett. 4, 1394 (2019). |
| 저자 | 김운혁, 선양국 |
| 소속 | 한양대 |
| 키워드 | 에너지 |
| 원문파일 | 초록 보기 |
