TY  - JOUR
AU  - Liu, Yulong
AU  - Sun, Qian
AU  - Zhao, Yang
AU  - Wang, Biqiong
AU  - Kaghazchi, Payam
AU  - Adair, Keegan R.
AU  - Li, Ruying
AU  - Zhang, Cheng
AU  - Liu, Jingru
AU  - Kuo, Liang-Yin
AU  - Hu, Yongfeng
AU  - Sham, Tsun-Kong
AU  - Zhang, Li
AU  - Yang, Rong
AU  - Lu, Shigang
AU  - Song, Xiping
AU  - Sun, Xueliang
TI  - Stabilizing the Interface of NASICON Solid Electrolyte against Li Metal with Atomic Layer Deposition
JO  - ACS applied materials & interfaces
VL  - 10
IS  - 37
SN  - 1944-8252
CY  - Washington, DC
PB  - Soc.
M1  - FZJ-2019-01033
SP  - 31240 - 31248
PY  - 2018
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - pmid:30141900
UR  - <Go to ISI:>//WOS:000445439900034
DO  - DOI:10.1021/acsami.8b06366
UR  - https://juser.fz-juelich.de/record/860249
ER  -