TY - JOUR
T1 - Bottom-current-collector-free thin-film batteries using LiNi0.8Co0.2O2 epitaxial thin films
AU - Nishio, Kazunori
AU - Horiba, Koji
AU - Nakamura, Naoto
AU - Kitamura, Miho
AU - Kumigashira, Hiroshi
AU - Shimizu, Ryota
AU - Hitosugi, Taro
N1 - Funding Information:
This research was supported by JST-CREST and TOYOTA MOTOR CORPORATION . K. N. acknowledges funding from JSPS Kakenhi Grant no. 17H06674 , and no. 18K14314 . T. H. acknowledges funding from JKA Grant No. 109 and JSPS Kakenhi Grant No. 18H03876 . We thank Toray Research Center, Inc. for the RBS-NRA measurements. Raman spectroscopy measurements were performed at Ookayama Materials Analysis Division, Technical Department, Tokyo Institute of Technology.
Funding Information:
This research was supported by JST-CREST and TOYOTA MOTOR CORPORATION. K. N. acknowledges funding from JSPS Kakenhi Grant no. 17H06674, and no.18K14314. T. H. acknowledges funding from JKA Grant No. 109 and JSPS Kakenhi Grant No. 18H03876. We thank Toray Research Center, Inc. for the RBS-NRA measurements. Raman spectroscopy measurements were performed at Ookayama Materials Analysis Division, Technical Department, Tokyo Institute of Technology.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/3/15
Y1 - 2019/3/15
N2 - The decrease in the resistance at solid electrolyte and electrode interfaces has become a critical issue in the development of solid-state lithium batteries. To understand the ionic transport properties across solid electrolyte and electrode interfaces, thin-film batteries consisting of flat epitaxial films are of considerable importance. Herein, we report the operation of bottom-current-collector-free thin-film batteries using LiNi0.8Co0.2O2 epitaxial thin films. As the bottom current collector is not inserted between the substrates and LiNi0.8Co0.2O2, the surface of LiNi0.8Co0.2O2 is very flat, with a surface roughness average of approximately 0.44 nm. This study proposes a very flat electrode surface suitable for the investigation of interfacial phenomena at solid electrolyte and electrode interfaces.
AB - The decrease in the resistance at solid electrolyte and electrode interfaces has become a critical issue in the development of solid-state lithium batteries. To understand the ionic transport properties across solid electrolyte and electrode interfaces, thin-film batteries consisting of flat epitaxial films are of considerable importance. Herein, we report the operation of bottom-current-collector-free thin-film batteries using LiNi0.8Co0.2O2 epitaxial thin films. As the bottom current collector is not inserted between the substrates and LiNi0.8Co0.2O2, the surface of LiNi0.8Co0.2O2 is very flat, with a surface roughness average of approximately 0.44 nm. This study proposes a very flat electrode surface suitable for the investigation of interfacial phenomena at solid electrolyte and electrode interfaces.
KW - Epitaxial thin film
KW - Interface resistance
KW - LiNiCoO
KW - Pulsed laser deposition
KW - Solid-state battery
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U2 - 10.1016/j.jpowsour.2019.01.067
DO - 10.1016/j.jpowsour.2019.01.067
M3 - Article
AN - SCOPUS:85060846786
SN - 0378-7753
VL - 416
SP - 56
EP - 61
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -
