Synthesis, characterization and electrochemical performance of LiNiVO4 anode material for lithium-ion batteries

Abstract

A rheological phase reaction method was introduced to synthesize LiNiVO 4 powder material. The product was tested using XRD, SEM and electrochemical measurement methods. It was found that single crystal grain LiNiVO 4 is easily prepared with the rheological phase reaction; the intermediate product NiV(IV)O 3 is the electrochemical active center; the product prepared at 700°C for 18 h possess the best morphology of single crystal body and exhibits excellent performance as anode material with a small capacity fade. This indicates that LiNiVO 4 is a good anode material for lithium-ion batteries and the rheological phase reaction is a simple, economical and effective method to synthesize a series of functional materials.

Metal Oxides and Oxysalts as Anode Materials for Li Ion Batteries

“…Subsequently, the group of Tarascon 1098,1099 studied both crystalline and amorphous (hydrated) phases of LiNiVO 4 and found that they show capacity fading from ∼1000 mA•h g −1 to ∼550 mA•h g −1 after 50 cycles. Similar capacity fading in LiNiVO 4 was also reported by Han et al 1100 Shirakawa et al 1101,1102 studied in detail the Li−LiCoVO 4 system to understand the reaction mechanism. They found that at 0.02C and at 5C rates (1C = 350 mA g −1 ), reversible capacities of 980 and 800 mA•h g −1 are obtained.…”