| 학회 | 한국공업화학회 |
| 학술대회 | 2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 | 18권 1호 |
| 발표분야 | 포스터-에너지저장.변환 |
| 제목 | Electrochemical performances of the acid-treated xLi2MnO3•(1-x)LiMn0.60Ni0.25Co0.15O2 cathode materials for Li-ion batteries |
| 초록 | The xLi2MnO3•(1-x)LiMO2 (M=Mn, Co, Ni) have been widely considered as potential cathode materials for Li-ion battery due to the high specific. The chemical activation of xLi2MnO3•(1-x)LiMO2 electrodes are favorable to eliminate the first cycle capacity loss of the electrode. However, the acid-treated electrode is damaged on the surface and it leads to inferior long-term cycling stability and lose capacity more rapidly than untreated electrode. The coating method is generally employed in order to modify the surface of the electrode with other metal oxides. In this work, we have carried out chemical leaching of 0.3Li2MnO3•0.7LiMn0.60Ni0.25Co0.15O2 by using a nitric acid (HNO3) to remove the Li2O which is irreversible capacity loss in initial activation process. The ALD is also employed to coat the uniform Al2O3 thin layer and improve the cycling stability and rate capability of the electrode. |
| 저자 | 김현수, 최만수, 진봉수 |
| 소속 | 한국전기(연) |
| 키워드 | 리튬이온전지; 양극재료; 산처리; 고용량 |
