Operando Soft X-ray Absorption Spectroscopic Study of an All-solid-state Lithium-ion Battery Using a NASICON-type Lithium Conductive Glass Ceramic Sheet

An electrochemical cell was developed for operando soft X-ray absorption spectroscopic (XAS) study of an all-solid-state lithium-ion battery. Operando XAS experiments were performed for a battery using LiMn2O4 as a cathode material and a NASICON-type lithium conductive glass ceramic sheet (LICGC) as...

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Bibliographic Details
Published in:Denki kagaku oyobi kōgyō butsuri kagaku 2018/05/05, Vol.86(3), pp.128-133
Main Authors: YAMANAKA, Keisuke, NAKANISHI, Koji, WATANABE, Iwao, OHTA, Toshiaki
Format: Article
Language:English
Subjects:
Absorption
All Solid State Li-ion Battery
Anodes
Electrochemistry
Electrode materials
Glass ceramics
LICGC
LiMn2O4
Lithium
Lithium manganese oxides
Lithium-ion batteries
Operando Soft XAS
Rechargeable batteries
Soft x rays
Solid electrolytes
Solid state
Sorption
Spectra
Spectroscopic analysis
X-ray spectroscopy
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Summary:An electrochemical cell was developed for operando soft X-ray absorption spectroscopic (XAS) study of an all-solid-state lithium-ion battery. Operando XAS experiments were performed for a battery using LiMn2O4 as a cathode material and a NASICON-type lithium conductive glass ceramic sheet (LICGC) as a solid electrolyte. O K-edge, Mn L-edge and Ti L-edge XAS spectra were taken during the charging process up to 2.2 V. Detailed analysis of the XAS spectra revealed that the valence change from Mn3+ to Mn4+ occurred during charge with simultaneous change in the spectrum of O K-pre-edge region. Ti L-edge spectra revealed a partial change from Ti4+ to Ti3+ in the LICGC at the anode side, indicating a rather dispersed anode formation.
ISSN:1344-3542
2186-2451
DOI:10.5796/electrochemistry.17-00068