| 학회 | 한국화학공학회 |
| 학술대회 | 2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 | 25권 1호, p.718 |
| 발표분야 | 재료(Materials) |
| 제목 | Core-shell structured silicon@TiO1-xNy nanoparticles for high performance composite anode in Li-ion batteries |
| 초록 | To improve the performance of silicon (Si) anodes in LIB, a variety of silicon nanostructures and composites are developed, which can effectively minimize the mechanical strains to extend cycle life of Si anodes. However, the fabrications require toxic reagents, advanced techniques which will lead to high costs. As a promising approach, simple surface coating with conductive materials is preferred to reduce unnecessary growth of SEI films and also improve the conductivity of electrodes. Most conductive coating materials, however, do not accommodate the volume expansion. Herein, we report TiO1-xNy for coating materials of Si NP anodes. TiO1-xNy considered to be solid solutions of cubic TiN and TiO with rock-salt structure, which have much larger bulk modulus than TiO2 with acting as buffer layers to effectively suppress the volume change of Si anode. Also nitrogen atom substituted for the oxygen vacancy of TiO1-x phase improves electrical conductivity. This work was supported by the Industrial Core Technology Development Program (10080656). |
| 저자 | 왕성은1, 김도훈2, 강윤찬3, 정대수2 |
| 소속 | 1한국세라믹기술원 / 고려대, 2한국세라믹기술원, 3고려대 |
| 키워드 | 재료 |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
