Atomic layer deposition of ZnO/TiO₂ nanolaminates as ultra-long life anode material for lithium-ion batteries.

ABSTRACT: In this work, we designed ZnO/TiO₂ nanolaminates by atomic layer deposition (ALD) as anode material for lithium ion batteries. ZnO/TiO₂ nanolaminates were fabricated on copper foil by depositing unit of 26 cycles ZnO/26 cycles TiO₂ repeatedly using ALD. ZnO/TiO₂ nanolaminates are much more stable than pristine ZnO films during electrochemical cycling process. Therefore, ZnO/TiO₂ nanolaminates exhibit excellent lithium storage performance with an improved cycling performance and superior rate capability compared to pristine ZnO films. Moreover, coulombic efficiency (CE) of ZnO/TiO₂ nanolaminates is above 99%, which is much higher than the value of pristine ZnO films. Excellent ultralong-life performance is gained for ZnO/TiO<

SUBMITTER: Cao YQ 

PROVIDER: S-EPMC6687889 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature