The Characteristics of Fine-Sized LiMn(12-X)/6Alx/6O4(0.05≤x≤2) Powders Prepared by Spray Pyrolysis
The series of partially Al-substituted lithium manganese oxides were prepared by spray pyrolysis process from spray solutions with citric acid and ethylene glycol. The as-prepared particles obtained from spray solution with citric acid and ethylene glycol turned to fine-sized LiMn(12- x)/6Alx/6O4(0.05≤x≤2) particles with regular morphology after post-annealing. The discharge capacities of the particles post-annealed at temperature of 800oC changed from 128 to 84 mAh/g when the x of the LiMn(12-x)/6Alx/6O4 particles was changed from 0 to 2. The Al-doped LiMn2O4 fine particles prepared by spray pyrolysis from spray solution with citric acid and ethylene glycol had good cycle properties.
K. Katayama, K. Kato, T. Takenaka, M. Takata and K. Shinozaki
S. H. Ju et al., "The Characteristics of Fine-Sized LiMn(12-X)/6Alx/6O4(0.05≤x≤2) Powders Prepared by Spray Pyrolysis", Key Engineering Materials, Vol. 350, pp. 27-30, 2007