| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
에너지저장변환 |
| 제목 |
Enhanced Cycling Performance of LiNi0.5Co0.2Mn0.3O2 Cathode by Interfacial Stabilization Using Functional Additive |
| 초록 |
Multi-components cathode active materials of Li(Ni1-x-yCoxMny)O2 are one of the promising cathode active materials for high-energy density Li-ion batteries, and their capacity can increase by increasing the Ni content and the charge cut-off voltage (＞ 4.2 V). However, their high-voltage performance is limited because of anodic instability of conventional electrolyte and structural degradation of cathode material at high-voltages. Interfacial stabilization using a small fraction of functional electrolyte additive as a high-voltage stabilizer is a promising approach to improve high-voltage stability of Ni-rich cathode (e.g., NCM523). Surface analysis results of high-voltage surface film formation and their relation to cycling performance would be discussed. |
| 저자 |
김재희1, 송승완1, 이희열1, 황의형2, 권영길3, 이정규2
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| 소속 |
1충남대, 2Leechem Co., 3Ltd. |
| 키워드 |
Lithium Batteries; High-Voltage Additive; SEI layer
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| E-Mail |
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