화학공학소재연구정보센터
Applied Chemistry, Vol.2, No.1, 352-355, May, 1998
초음파처리된 리튬이차전지용 LiV3O8의 구조적 특성
The Structural Characteristics of Ultrasonic Treated LiV3O8 for Lithium Secondary Battery System
A new treatment of LiV3O8 has been proposed for improving its electrochemical behavior as a cathode material for secondary lithum batteries. Lithium trivanadate, LiV3O8 can be prepared in a finely dispersed from by dehydration of aqueous lithium trivanadate gels. The ultrasonic treatment method for LiV3O8 has been examined in comparison with LiV3O8 prepared by solution method. The ultrasonically treated products under the water circumstance were characterized by XRD, DSC and SEM. These measurements showed that the ultrasonic treatment process of aqueous LiV3O8 caused a decrease in crytallinity and considerable increased in specific surface area and interlayer spacing, The product, ultrasonically treated for 2hr, specially showed lowest crystallinity, so it can be expected that specific surface area increased. The ultrasonic treated LiV3O8 can not only enlarge the specific capacity, but also improve the cycling behavior.