Abstract
Exploiting fast-kinetics anode materials for lithium-ion batteries shows significant importance for promoting their power density. Herein, we exhibit a rational synthesis strategy of ultrafine spinel Li4Ti5O12 nanocrystals and 3D hierarchical architectured composite by an aerosol process in which homogenous suspension of Li4Ti5O12, carbon black, and graphene oxide are atomized and assembled into spherical LTO/CB-G superstructure. The unique 3D architecture is well characterized, and its formation mechanism is discussed in detail. When applied in battery electrode, LTO/CB-G delivers superior rate performance and long cycling durability. Considering the potential large-scale production of graphene and the scalable aerosol-assisted process, 3D Li4Ti5O12-based nanocomposites hold great promise for high-power anodes in real applications of electric transportations.
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