| 학회 | 한국화학공학회 |
| 학술대회 | 2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터) |
| 권호 | 27권 2호, p.1775 |
| 발표분야 | 에너지 환경 |
| 제목 | Novel Electrolyte Additive Enabling Performance Improvement of High-Energy Density Lithium-ion Battery Based on SiOx-Graphite Anode |
| 초록 | Development on high-energy density lithium-ion batteries is on strong demand to meet the required long driving range of electric vehicles. The use of nickel-rich NCM layered oxide cathode active materials with 80 % or higher Ni content and/or a further increase of their capacity by charging to higher voltages than conventional 4.2 V suit the needs. Interfacial instability with the electrolyte under high voltages and structural degradation often lead to poor performance. On the other hand, silicon oxide(SiOx)-graphite has been studied as a high capacity anode material to meet the increased capacity of the cathode. The anode possesses severe failures due to large volume change of Si and the interfacial instability with the electrolyte. Herein, we present the designed novel electrolyte additives to stabilize solid electrolyte interphase(SEI) and to improve cycling performance of the SiOx-graphite‖NCM811 full-cell. Analysis of the effects of designed additives on the SEI would be discussed in the meeting. Acknowledgements This research was supported by Hyundai Motor Group and National Research Foundation grant funded by the Korean Ministry of Science and ICT (No. 2019R1A2C1084024). |
| 저자 | 오민근1, 곽세현1, 안기훈1, Thi Hai Yen Tran1, 김고은2, 이윤성2, 송승완1 |
| 소속 | 1충남대, 2현대자동차 |
| 키워드 | 에너지 |
| 원문파일 | 초록 보기 |
