| 학회 | 한국공업화학회 |
| 학술대회 | 2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 | 24권 1호 |
| 발표분야 | 포스터-전기화학 |
| 제목 | Electrochemical performances of O2 type cathode material in lithium ion battery at extremely high voltage region |
| 초록 | To date, researches on cathode materials in lithium ion battery with high capacity and capable of operating at high voltage are actively conducted. Currently the commercially available cathode material has an oxygen layer arrangement of O3 type, and when charged in the high voltage region, the transition metal moves into the lithium layer and the phase changes irreversibly. It greatly inhibits the reversibility of the structural change of the materials and leads to performance degradation such as voltage decay and hysteresis during charge and discharge. However, when the arrangement of the oxygen layer is changed to the O2 type, the phase transition in the high voltage region is reversibly changed during charge and discharge. So our research discovered new electrochemical behavior in O2 type materials at extremely high voltage region. |
| 저자 | 김지환, 성영은 |
| 소속 | 서울대 |
| 키워드 | |
