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Updated: Sep 25, 2025
Preparation of Graphene Liquid Cells for the Observation of Lithium-ion Battery Material
Published on: February 5, 2019
Two-dimensional layered lithium lanthanum titanium oxide/graphene-like composites as electrodes for lithium-ion
Bo Gu1,2,3, Chenyang Zhan2,3, Bing Heng Liu2,3
1Faculty of Materials Metallurgy and Chemistry, Key Laboratory of Power Batteries and Relative Materials, Jiangxi University of Science and Technology, Ganzhou 341000, China. zhangqian@jxust.edu.cn.
Abstract:
Perovskite-structured (ABO3) lithium lanthanum titanate (LiLa(2-TiO3, LLTO) is widely used in all solid state lithium ion batteries due to its high ionic conductivity. In this study, a two-dimensional LLTO nanosheet/graphene (LLTO/C) nanosheet composite has been designed as an electrode material for lithium-ion batteries (LIBs). LLTO/C not only exhibits the ionic conductivity properties of perovskite-type LLTO, but the graphene between the layers of LLTO nanosheets also endows the material with additional electronic conductivity. Moreover, LLTO@C-600 exhibits an excellent rate capability as the electrode for delithiation with a high specific capacity of 350 mA h g-1 at 20 mA g-1, and 70% of the specific capacity can be maintained at 1.0 A g-1 after 800 cycles. The excellent electrochemical performances can be attributed to the superior interficial capacitive Li+ storage capability.
