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Fiber Optic Sensor ...
Fiber Optic Sensor for Detection of Sodium Plating in Sodium-ion Batteries
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- Hedman, Jonas (författare)
- Uppsala universitet,Strukturkemi
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- Mogensen, Ronnie (författare)
- Uppsala universitet,Strukturkemi
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- Younesi, Reza (författare)
- Uppsala universitet,Strukturkemi
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visa fler...
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- Björefors, Fredrik, 1971- (författare)
- Uppsala universitet,Strukturkemi
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visa färre...
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(creator_code:org_t)
- Engelska.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Optical fiber sensors integrated into sodium-ion batteries could provide a battery management system (BMS) with information to identify early warning signs of plating, preventing catastrophic failure and maintaining safe operation during fast charging. This work shows the possibility to directly detect plating of sodium metal in electrochemical cells by means of operando fiber optic evanescent wave (FOEW) spectroscopy. The results include measurements with FOEW sensors on bare copper substrates as well as on hard carbon anodes during operation in both half- and full-cell configurations. Full-cells using hard carbon anodes and Prussian white cathodes with high areal capacities (>1.5 mAh cm−2) and integrated FOEW sensors are shown to cycle well in pouch cells. The results also include measurements to demonstrate plating on hard carbon during sodiation at different rates.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Evanescent waves
- Fiber optic sensors
- Hard carbon
- Prussian white
- Sodium-ion batteries
- Sodium plating
Publikations- och innehållstyp
- vet (ämneskategori)
- ovr (ämneskategori)