| 학회 | 한국화학공학회 |
| 학술대회 | 2009년 가을 (10/22 ~ 10/23, 일산 KINTEX) |
| 권호 | 15권 2호, p.2196 |
| 발표분야 | 재료 |
| 제목 | Synthesis of layeredLiNi1/3Co1/3Mn1/3O2 cathode materialsby supercritical water method |
| 초록 | Layered LiNi1/3Co1/3Mn1/3O2 and LiCoO2 cathode materials were synthesized using a supercritical water (SCW) method with a metal salt solution in a batch reactor. These two cathode materials were successfully synthesized in 10-minute reaction without calcination. The physical properties and electrochemical performances of LiNi1/3Co1/3Mn1/3O2 were compared to those of LiCoO2 by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), induced coupling plasma spectroscopy (ICP), and charge/discharge cycling tests. The XRD pattern of LiNi1/3Co1/3Mn1/3O2 was found to be similar to that of LiCoO2, showing clear splitting of the (006)/(102) and (108)/(110) peak pairs as particular characteristics of the layered structure. The LiNi1/3Co1/3Mn1/3O2 electrode delivers a high discharge capacity of 180 mAh/g between 2.5 and 4.5 V at a current density of 0.24 mA/cm2 with excellent cycleability and rate capability while the LiCoO2 electrode delivers a discharge capacity of 149 mAh/g. |
| 저자 | 이재욱1, 이재혁2, 이진영1, 김준수1, 이창하2 |
| 소속 | 1한국지질자원(연), 2연세대 |
| 키워드 | Cathode materials; LiNi1/3Co1/3Mn1/3O2; LiCoO2; Supercritical water; Lithium-ion battery |
| 원문파일 | 초록 보기 |
