1997 potentials, cells, elements

potentials, cells, elements (inorganic)F 3000

25 - 019Ultrasonically Treated LiV3O8 as a Cathode Material for SecondaryLithium Batteries. — The electrochemical behavior of layered LiV3O8as cathode material for secondary Li batteries is improved by ultrasonictreatment of ground crystalline material followed by heat treatment in air.Upon 3 h ultrasonic treatment and subsequent heat treatment at 250 ◦C for6 h, the product exhibits a discharge capacity of 283 mAh/g as compared to175 mAh/g of the starting material and an excellent cycling behavior. Theultrasonic treatment causes a decrease in crystallinity, a considerable increaseof the specific surface area, and an expansion of the interlayer spacing due tointercalation of water molecules. — (KUMAGAI, N.; YU, A.; J. Electrochem.Soc. 144 (1997) 3, 830-835; Dep. Appl. Chem. Mol. Sci., Fac. Eng., IwateUniv., Morioka 020, Japan; EN)

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