cobalt(II)-lithium vanadate(V)

Characterization by in situ or operando methods is very important to deeper understand the chemical and electrochemical processes, as well as the degradation processes that occur during the operation of a lithium-ion battery.

This paper discusses the prospects for developing a cathode material based on the cobalt(II)-lithium vanadate(V) (LiCoVO4) for a lithium-ion battery, an approach to its preparation and features of the electrochemical behavior. We obtained LiCoVO4 using solid-phase synthesis technology with preliminary mechanical activation of the mixture of starting materials. The highest specific cathode capacity in the first cycle was demonstrated by the sample obtained by heat treatment at 700°C for 12 hours – 44 mA·h·g −1 .