Highly-Stable Li₄Ti₅O12 Anodes Obtained by Atomic-Layer-Deposited Al₂O₃.

ABSTRACT: LTO (Li₄Ti₅O12) has been highlighted as anode material for next-generation lithium ion secondary batteries due to advantages such as a high rate capability, excellent cyclic performance, and safety. However, the generation of gases from undesired reactions between the electrode surface and the electrolyte has restricted the application of LTO as a negative electrode in Li-ion batteries in electric vehicles (EVs) and energy storage systems (ESS). As the generation of gases from LTO tends to be accelerated at high temperatures (40⁻60 °C), the thermal stability of LTO should be maintained during battery discharge, especially in EVs. To overcome these technical limitations, a thin layer of Al₂O₃ (~2 nm thickness) was deposited on the LTO electrode surface by atomic layer deposition (ALD), and

SUBMITTER: Yoon JK 

PROVIDER: S-EPMC5978180 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature