%0 Journal Article
%A Liu, Yulong
%A Sun, Qian
%A Zhao, Yang
%A Wang, Biqiong
%A Kaghazchi, Payam
%A Adair, Keegan R.
%A Li, Ruying
%A Zhang, Cheng
%A Liu, Jingru
%A Kuo, Liang-Yin
%A Hu, Yongfeng
%A Sham, Tsun-Kong
%A Zhang, Li
%A Yang, Rong
%A Lu, Shigang
%A Song, Xiping
%A Sun, Xueliang
%T Stabilizing the Interface of NASICON Solid Electrolyte against Li Metal with Atomic Layer Deposition
%J ACS applied materials & interfaces
%V 10
%N 37
%@ 1944-8252
%C Washington, DC
%I Soc.
%M FZJ-2019-01033
%P 31240 - 31248
%D 2018
%X Solid-state batteries have been considered as one of the most promising next-generation energy storage systems because of their high safety and energy density. Solid-state electrolytes are the key component of the solid-state battery, which exhibit high ionic conductivity, good chemical stability, and wide electrochemical windows. LATP [Li1.3Al0.3Ti1.7 (PO4)3] solid electrolyte has been widely investigated for its high ionic conductivity. Nevertheless, the chemical instability of LATP against Li metal has hindered its application in solid-state batteries. Here, we propose that atomic layer deposition (ALD) coating on LATP surfaces is able to stabilize the LATP/Li interface by reducing the side reactions. In comparison with bare LATP, the Al2O3-coated LATP by ALD exhibits a stable cycling behavior with smaller voltage hysteresis for 600 h, as well as small resistance. More importantly, on the basis of advanced characterizations such as high-resolution transmission electron spectroscope-electron energy loss spectroscopy, the lithium penetration into the LATP bulk and Ti4+ reduction are significantly limited. The results suggest that ALD is very effective in improving solid-state electrolyte/electrode interface stability.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:30141900
%U <Go to ISI:>//WOS:000445439900034
%R 10.1021/acsami.8b06366
%U https://juser.fz-juelich.de/record/860249