KCS 121st General Meeting

Subject Preparation of partially substituted Li3V2-xMx(BO3)3 (M=Al) as a cathode material for Li-ion battery
Code ANAL2.O-7
Time FRI 09 : 35
Area Oral Presentation of Young Analytical Chemists II
Type Oral Presentation
Authors Minsoo Ji, YOUNGIL LEE*
Department of Chemistry, University of Ulsan, Korea
Abstract Aluminum substituted lithium vanadium borate as a cathode material has been prepared by sol-gel route, and its electrochemical properties have been investigated. Commonly, aluminum ions provide a modification of the lithium insertion reaction consistent with increasing alkaline ionic disorder. These phenomena suggest that the substituted phases may offer some improvement their electrochemical properties, such as low polarization, high average potential, low irreversibility, and long cyclability. Galvano-static charge/discharge and cyclic voltammetry (CV) measurements were also measured to study the reversibility of the lithium extraction/insertion processes. As shown in figure, 4% aluminum substituted lithium vanadium borate has better electrochemical performance in high C rates.
E-mail jimindol01@gmail.com