TY - JOUR
T1 - Impact of the Crystal Orientation of Positive Electrodes on the Interface Resistance across a Solid Electrolyte and Electrode
AU - Nishio, Kazunori
AU - Nakamura, Naoto
AU - Horiba, Koji
AU - Kitamura, Miho
AU - Kumigashira, Hiroshi
AU - Shimizu, Ryota
AU - Hitosugi, Taro
N1 - Funding Information:
This research was supported by JST-CREST Grant No. JPMJCR1523 and Toyota Motor Corporation. K.N. acknowledges funding from JSPS Kakenhi Grant Nos. 17H06674 and 18 K14314. T.H. acknowledges funding from JKA Grant No. 109 and JSPS Kakenhi Grant No. 18H03876. We thank Toray Research Center, Inc. for the RBS-PIXE measurements. The figures of crystal structures are drawn using the VESTA program. The Raman spectroscopy measurements were performed at the Ookayama Materials Analysis Division, Technical Department, Tokyo Institute of Technology. We would like to thank Editage ( www.editage.jp ) for English language editing.
Publisher Copyright:
Copyright © 2020 American Chemical Society.
PY - 2020/7/27
Y1 - 2020/7/27
N2 - Understanding the origin of the resistance at the interfaces of a solid electrolyte and electrode material is crucial for the design of high-performance all-solid-state lithium batteries. In particular, it is of considerable importance to quantitatively study the impact of the crystal orientations of electrodes on the interface resistance. However, the investigation of the properties of buried interfaces has been challenging because conventional studies are based on granular samples. In this work, we quantitatively examined the resistance at the interface of the solid electrolyte Li3PO4 and LiNi1/3Mn1/3Co1/3O2 (NMC) positive electrode epitaxial thin films. We fabricated thin-film NMC electrodes with two orientations, (001) and (104), and investigated the battery performance. Furthermore, we clarified that when the surfaces of NMC were exposed to the air, the Li3PO4/NMC interface resistances increased drastically, depending on the crystal orientations.
AB - Understanding the origin of the resistance at the interfaces of a solid electrolyte and electrode material is crucial for the design of high-performance all-solid-state lithium batteries. In particular, it is of considerable importance to quantitatively study the impact of the crystal orientations of electrodes on the interface resistance. However, the investigation of the properties of buried interfaces has been challenging because conventional studies are based on granular samples. In this work, we quantitatively examined the resistance at the interface of the solid electrolyte Li3PO4 and LiNi1/3Mn1/3Co1/3O2 (NMC) positive electrode epitaxial thin films. We fabricated thin-film NMC electrodes with two orientations, (001) and (104), and investigated the battery performance. Furthermore, we clarified that when the surfaces of NMC were exposed to the air, the Li3PO4/NMC interface resistances increased drastically, depending on the crystal orientations.
KW - air exposure effect on the interface resistance
KW - crystal orientation dependence of the interface resistance
KW - in vacuo process
KW - LiNiMnCoOepitaxial thin films
KW - pulsed laser deposition
KW - solid electrolyte/electrode interface
KW - solid-state Li batteries
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U2 - 10.1021/acsaem.0c00644
DO - 10.1021/acsaem.0c00644
M3 - Article
AN - SCOPUS:85091091084
SN - 2574-0962
VL - 3
SP - 6416
EP - 6421
JO - ACS Applied Energy Materials
JF - ACS Applied Energy Materials
IS - 7
ER -