Lithium battery industry is booming, and this fast growth should be supported
by developing industry friendly tools to control the quality of positive and
negative electrode materials. Raman spectroscopy was shown to be a cost
effective and sensitive instrument to study defects and heterogeneities in
lithium titanate, popular negative electrode material for high power
applications, but there are still some points to be clarified. This work
presents a detailed thermal Raman study for lithium titanate and discusses the
difference of the number of predicted and experimentally observed Raman-active
bands. The low temperature study and the analysis of thermal shifts of bands
positions during heating let us to conclude about advantages of the proposed
approach with surplus bands and recommend using shifts of major band to
estimate the sample heating