화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU))
권호 22권 2호
발표분야 전기화학_포스터
제목 Structures and Electrochemical Properties of Li1+xV1-xO2 (0 ≤ x ≤ 0.1) as anode materials for lithium-ion batteries
초록 Li1+xV1-xO2 (0 ≤ x ≤ 0.1) compounds were studied as the anode materials for a lithium-ion battery. The crystal and electronic structures of the prepared materials were correlated with electrical conductivities and electrochemical properties. The electrochemical behaviors were significantly dependent on the composition of Li1+xV1-xO2, and these were resulted from the perturbation of the local electronic structure arising from the increase in lithium contents in Li1+xV1-xO2 rather than from the slight distortion in the crystal structure. The electrical conductivities of Li1+xV1-xO2 increased with the increase in lithium contents in the compounds. Li1.1V0.9O2 and Li1.075V0.925O2 samples exhibit the first discharge capacities of 250 and 241 mAh g-1 at 0.2 C-rate, respectively.
저자 최현철
소속 전남대
키워드 Anode; Lithium ion battery; Electrochemistry
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