| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
A study in improving of Tin oxide-Barium titanate-Carbon (SnO2-BaTiO3-C) composite as an anode for lithium-ion battery |
| 초록 |
Due to the low specific capacity (372 mAh/g) of Graphite as a Li-ion battery anode, we developed tin oxide-barium titanate-carbon (SnO2-BaTiO3-C) composite as a novel anode exhibiting superior electrochemical performance. The composites were synthesized by barium titanate coating on the surface of tin oxide followed by carbonization at the N2 atmosphere. As-formed composites show reduced irreversible loss of active masses because of the mechanical pressures occurred from high volumetric change of tin oxide during charge/discharge process. The mechanical pressure generates electric fields and piezoelectric potential by leading to polarization of barium titanate particles in charge/discharge process. We can expect the improved electron conductivity by facilitating electron transfer through forming composites with carbon. We used hydrothermal reaction and high temperature structure rearrangement process at N2 atmosphere to enhanced electrochemical performance (increased cycle stability). |
| 저자 |
손희상, 석도형, 정요한
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| 소속 |
광운대 |
| 키워드 |
리튬이온배터리 음극; 압전효과; 요크-쉘 구조; 산화주석; 티탄산바륨
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| E-Mail |
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