Research output: Contribution to journal › Article › peer-review
In Situ XPS Studies of Solid Electrolyte Electroreduction through Graphene Electrode. / Inozemtseva, Alina I.; Vizgalov, Victor A.; Kapitanova, Olesya O.; Panin, Gennady; Velasco Vélez, Juan J.; Itkis, Daniil M.; Usachov, Dmitry Yu; Yashina, Lada V.
In: Journal of the Electrochemical Society, Vol. 167, No. 11, 110533, 17.07.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - In Situ XPS Studies of Solid Electrolyte Electroreduction through Graphene Electrode
AU - Inozemtseva, Alina I.
AU - Vizgalov, Victor A.
AU - Kapitanova, Olesya O.
AU - Panin, Gennady
AU - Velasco Vélez, Juan J.
AU - Itkis, Daniil M.
AU - Usachov, Dmitry Yu
AU - Yashina, Lada V.
N1 - Publisher Copyright: © 2020 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/7/17
Y1 - 2020/7/17
N2 - The current interest in research and development of solid electrolytes for battery systems dictates a necessity to evaluate their electrochemical stability in a wide potential range. It is supposed that the stability and properties of the interface formed between the electrode and solid electrolyte at the applied potential (the analog of solid electrolyte interphase (SEI) in liquid electrolytes) are of great importance for the battery operation. While the electrochemical techniques can provide the knowledge of a stability window of the solid electrolyte, a direct method, which helps to trace chemical changes, is still missing, due to the difficulty to reach the interface between the solid electrolyte and thick electrode material. In this paper, we propose to use two-layer graphene transferred directly on the solid electrolyte as the electrode transparent for photoelectrons. Such an electrode is thin enough to probe the interface by X-ray photoelectron spectroscopy to trace the occurring chemical changes. To demonstrate this possibility, we have investigated the electrochemical reduction of Li1.5Al0.5Ge1.5(PO4)3 (LAGP) glass-ceramic electrolyte by in situ XPS.
AB - The current interest in research and development of solid electrolytes for battery systems dictates a necessity to evaluate their electrochemical stability in a wide potential range. It is supposed that the stability and properties of the interface formed between the electrode and solid electrolyte at the applied potential (the analog of solid electrolyte interphase (SEI) in liquid electrolytes) are of great importance for the battery operation. While the electrochemical techniques can provide the knowledge of a stability window of the solid electrolyte, a direct method, which helps to trace chemical changes, is still missing, due to the difficulty to reach the interface between the solid electrolyte and thick electrode material. In this paper, we propose to use two-layer graphene transferred directly on the solid electrolyte as the electrode transparent for photoelectrons. Such an electrode is thin enough to probe the interface by X-ray photoelectron spectroscopy to trace the occurring chemical changes. To demonstrate this possibility, we have investigated the electrochemical reduction of Li1.5Al0.5Ge1.5(PO4)3 (LAGP) glass-ceramic electrolyte by in situ XPS.
KW - spectroelectrochemistry
KW - in situ XPS
KW - solid electrolytes
KW - electrochemical stability
KW - advanced lithium batteries
KW - Graphene
KW - LITHIUM
KW - BATTERIES
KW - CONDUCTIVITY
KW - SPECTROSCOPY
KW - OXIDATION
KW - CERAMICS
UR - http://www.scopus.com/inward/record.url?scp=85094323531&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/aab80325-502d-3c58-ba5d-4a6839aa4bc8/
U2 - 10.1149/1945-7111/aba370
DO - 10.1149/1945-7111/aba370
M3 - Article
AN - SCOPUS:85094323531
VL - 167
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 11
M1 - 110533
ER -
ID: 70716337