Search: id:"swepub:oai:research.chalmers.se:100985d2-f6db-4aa4-9bd6-9732d34076ad" >
Operando insights i...
Operando insights into ammonium-mediated lithium metal stabilization: surface morphology modulation and enhanced SEI development
-
- Lacarbonara, Giampaolo (author)
- Universita di Bologna,University of Bologna
-
- Sadd, Matthew, 1994 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Rizell, Josef, 1996 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
show more...
-
- Bargnesi, Luca (author)
- Universita di Bologna,University of Bologna
-
- Matic, Aleksandar, 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Arbizzani, Catia (author)
- Universita di Bologna,University of Bologna
-
show less...
-
(creator_code:org_t)
- 2024
- 2024
- English.
-
In: Journal of Colloid and Interface Science. - 1095-7103 .- 0021-9797. ; 669, s. 699-711
- Related links:
-
https://research.cha... (primary) (free)
-
show more...
-
https://doi.org/10.1...
-
https://research.cha...
-
show less...
Abstract
Subject headings
Close
- Lithium-ion batteries (LiBs) with graphite as an anode and lithiated transition metal oxide as a cathode are approaching their specific energy and power theoretical values. To overcome the limitations of LiBs, lithium metal anode with high specific capacity and low negative redox potential is necessary. However, practical application in rechargeable cells is hindered by uncontrolled lithium deposition manifesting, for instance, as Li dendrite growth which can cause formation of dead Li, short circuits and cell failure. The electrochemical behaviour of a protic additive (NH4PF6) in a carbonate-based electrolyte has been investigated by operando confocal Raman spectroscopy, in situ optical microscopy, and X-ray photoelectron spectroscopy, elucidating its functional mechanism. The ammonium cation promotes a chemical modification of the lithium metal anode-electrolyte interphase by producing an N-rich solid electrolyte interphase and chemically modifying the lithium surface morphology by electrochemical pitting. This novel method results in stable lithium deposition and stripping by a decreasing the local current density on the electrode, thus limiting dendritic deposition.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database