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WFRF:(Björefors Fredrik 1971 )
 

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  • Hedman, JonasUppsala universitet,Strukturkemi (author)

Fiber Optic Sensor for Detection of Sodium Plating in Sodium-ion Batteries

  • BookEnglish

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  • LIBRIS-ID:oai:DiVA.org:uu-469920
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-469920URI

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  • Language:English
  • Summary in:English

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  • Subject category:vet swepub-contenttype
  • Subject category:ovr swepub-publicationtype

Notes

  • 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.

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  • Mogensen, RonnieUppsala universitet,Strukturkemi(Swepub:uu)ronmo812 (author)
  • Younesi, RezaUppsala universitet,Strukturkemi(Swepub:uu)rezyo975 (author)
  • Björefors, Fredrik,1971-Uppsala universitet,Strukturkemi(Swepub:uu)fbj01617 (author)
  • Uppsala universitetStrukturkemi (creator_code:org_t)

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