▎ 摘　　要

NOVELTY - A composite material comprises a matrix formed by carbon aerogel and lithium titanate (I) spinel nanocrystallites dispersed in the matrix. The composite comprises 7-74 wt.% carbon and 25-93 wt.% lithium titanate (I) spinel nanocrystallites, and has specific surface area of 44-426 m2/g, pore volume of 0.03-0.21 cm3/g, and an average pore size of 2-3 nm. USE - Composite material used for manufacturing electrode materials and lithium-ion cells (all claimed). ADVANTAGE - The composite material has improved electrochemical performance compared to pure lithium-titanium oxide, as well as to an LTO/graphene composite, and retained a higher initial capacity after 200 cycles at high speed. The electrode materials have good conductivity and better specific capacity in relation to pure LTO, but they do not show adequate capacity retention (durability). Moreover, during manufacture of the electrode materials, many side phases are formed at the boundaries of LTO grains, which consequently leads to a loss of specific capacity, and results in deformations and stress in the LTO structure due to the process of excessive lithiation. Furthermore, in carbon/LTO composites, insufficient adhesion of the lithium tin oxide spinel to the carbon coatings is problematic, and the limitation of lithium ion permeability (limitation). DETAILED DESCRIPTION - A composite material comprises a matrix formed by carbon aerogel and lithium titanate of formula: Li4Ti5O12(I) spinel nanocrystallites dispersed in the matrix. The composite comprises 7-74 wt.% carbon and 25-93 wt.% lithium titanate (I) spinel nanocrystallites, and has specific surface area of 44-426 m2/g, pore volume of 0.03-0.21 cm3/g, and an average pore size of 2-3 nm. INDEPENDENT CLAIMS are included for the following: production of composite material; and use of the stressed composite material for the manufacture of electrode materials and lithium-ion cells.