화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center))
권호 24권 1호
발표분야 포스터-무기재료
제목 Piezoelectric material BaTiO3-coated SnO2 microsphere composite for improving electrochemical performance of Li-ion battery anode
초록 BaTiO3-coated SnO2 microsphere composite (SnO2@BTO) was synthesized via a solvothermal reaction with barium titanate (BTO) coating process. Piezoelectric materials such as BTO can produce a local piezoelectric field under a mechanical stress resulting from the volume expansion of a SnO2 electrode. The local piezoelectric field may help enhance the Lithium ion (Li+) mobility, which improves the electrochemical performance. The diffusion coefficient of the Li+ of the SnO2@BTO composite electrode showed higher than that of SnO2 microsphere electrode. Because of the advantages of the piezoelectric material used in the battery system, the SnO2@BTO composite exhibited a good rate performance and good cycling stability.
저자 석도형, 손희상
소속 광운대
키워드 Li-ion anode; piezoelectric material; tin oxide; volume expansion
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