ALD application for lithium ion batteries

Li4Ti5O12 coated with ultrathin Al-doped ZnO films as an anode material for lithium-ion batteries

Session Notes:


Ye Jin

Missouri University of Science and Technology




Aluminum-doped zinc oxide (AZO) films were coated on the surface of Li4Ti5O12 (LTO) particles via atomic layer deposition (ALD) in a fluidized bed reactor. The electrochemical characterization results indicated that the coating of AZO significantly improved the electrochemical performance of LTO between 0.1 V and 3.0 V. The AZO coating layer with an appropriate thickness not only increased the capacity of LTO by enhancing conductivity but also assisted the LTO electrodes to form a beneficial interface layer to protect the LTO from the continuous attack by harmful components in the electrolyte, especially under extreme conditions, such as high temperature and high current rates.