Search: WFRF:(Erbing Axel) >
Operando ambient pr...
Operando ambient pressure photoelectron spectroscopy of solid/liquid interfaces in Li-ion batteries
-
- Källquist, Ida (author)
- Uppsala universitet,Institutionen för fysik och astronomi
-
- Ericson, Tove, 1983- (author)
- Uppsala universitet,Institutionen för kemi - Ångström
-
- Erbing, Axel (author)
- Department of Physics, Stockholm University
-
show more...
-
- Odelius, Michael (author)
- Department of Physics, Stockholm University
-
- Lindgren, Fredrik (author)
- Uppsala universitet,Institutionen för kemi - Ångström,Energimaterialens fysik
-
- Lee, Ming-Tao (author)
- Uppsala universitet,Strukturkemi
-
- Shavorskiy, Andrey (author)
- MAX IV Laboratory, Lund University
-
- Rensmo, Håkan (author)
- Uppsala universitet,Energimaterialens fysik
-
- Maibach, Julia (author)
- Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT)
-
- Hahlin, Maria (author)
- Uppsala universitet,Institutionen för kemi - Ångström,Institutionen för fysik och astronomi
-
show less...
-
(creator_code:org_t)
- English.
- Related links:
-
https://urn.kb.se/re...
Abstract
Subject headings
Close
- Ambient pressure photoelectron spectroscopy (APPES) is combined with electrochemistry (EC) to investigate the interface between the liquid electrolyte and the solid electrode in Li-ion battery (LIB) cells. The combination of these techniques is promising for further understanding the functionality of LIB interfaces, but it is also associated with several experimental challenges. In this work a functional EC-cell which allows for probing the solid/liquid interface is achieved by the dip-and-pull method. Two systems consisting of a 1M LiClO4 in propylene carbonate electrolyte and a sputter deposited lithium cobalt oxide (LCO) or lithium nickel manganese cobalt oxide (NMC) thin film electrode are investigated. A methodology for combined EC/APPES measurements is proposed, where continuously changing the measurement spot is necessary to avoid accumulation of surface species during X-ray exposure. The APPES spectra from the LCO and NMC electrodes show binding energy (BE) shifts depending on applied voltage. It is argued that this is related to the lithiation of the material, as the BE shifts are found to coincide with expected phase transitions to more conductive phases. The experimental data is compared to results from supercell DFT calculations modelling the bulk material. The opposite trends observed in the experimental and computational approaches indicate the importance of an accurate treatment of the exchange for a proper description of the oxidation states of the Co atoms and their corresponding core-level shifts.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- vet (subject category)
- ovr (subject category)
To the university's database
- By the author/editor
-
Källquist, Ida
-
Ericson, Tove, 1 ...
-
Erbing, Axel
-
Odelius, Michael
-
Lindgren, Fredri ...
-
Lee, Ming-Tao
-
show more...
-
Shavorskiy, Andr ...
-
Rensmo, Håkan
-
Maibach, Julia
-
Hahlin, Maria
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Materials Chemis ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Condensed Matter ...
- By the university
-
Uppsala University