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Title: LI4TI5O12-based anode materials for high-power lithium-ion batteries
Keywords: lithium-ion battery; anode; lithium titanate; doping; compositing; hierarchical particle structuring
Issue Date: 8-Apr-2014
Citation: LIN CHUNFU (2014-04-08). LI4TI5O12-based anode materials for high-power lithium-ion batteries. ScholarBank@NUS Repository.
Abstract: Li4Ti5O12 is a promising anode material for lithium-ion batteries owing to its several inherent advantages in terms of high safety and good cyclability. However, it suffers from two main drawbacks of poor conductivity and overly high working potential with associated poor power performance. Here, to improve the power performance, several strategies, including doping (crystal-structure modifying), compositing, hierarchical particle structuring and their combined strategies, have been employed to modify Li4Ti5O12 since these strategies can improve the electronic conductivity and Li+ diffusion coefficient in Li4Ti5O12 particles, enhance the electrical conduction between the Li4Ti5O12 particles, reduce the Li4Ti5O12 particle size, and/or lower the working potential of Li4Ti5O12. The material structures, material properties and electrochemical performances of the prepared Li4Ti5O12-based materials have systematically and intensively been studied. Several promising Li4Ti5O12-based materials with high power density and good cyclability have been obtained, thus may find their practical applications in electrical vehicles and hybrid electrical vehicles.
Appears in Collections:Ph.D Theses (Open)

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