CRYOCHEMICAL PROCESSING OF CATHODE MATERIALS FOR LITHIUM-ION BATTERIES

摘要

LiCoO_2 and LiV_3O_8 are perspective cathode materials for lithium-ion batteries. Their electrochemical behavior depends on applied synthesis technique. According to West et al. (1996), LiV_3O_8 prepared by sol-gel technique can accommodate up to 3.5 additional lithium atoms per formula unit contrary to LiV_3O_8 prepared by slow cooling of the melt (3 lithium atoms). Generally soft chemistry techniques allow to improve the electrochemical performance of cathode materials, giving the reasons for the application of freeze drying technique (Tretyakov et al., 1997) to the preparation of aforementioned materials.