Fire-extinguishing, recyclable liquefied gas electrolytes for temperature-resilient lithium-metal batteries

Yijie Yin, Yangyuchen Yang (), Diyi Cheng, Matthew Mayer, John Holoubek, Weikang Li, Ganesh Raghavendran, Alex Liu, Bingyu Lu, Daniel M. Davies, Zheng Chen, Oleg Borodin () and Y. Shirley Meng ()
Additional contact information
Yijie Yin: University of California, San Diego
Yangyuchen Yang: University of California, San Diego
Diyi Cheng: University of California, San Diego
Matthew Mayer: University of California, San Diego
John Holoubek: University of California, San Diego
Weikang Li: University of California, San Diego
Ganesh Raghavendran: University of California, San Diego
Alex Liu: University of California, San Diego
Bingyu Lu: University of California, San Diego
Daniel M. Davies: University of California, San Diego
Zheng Chen: University of California, San Diego
Oleg Borodin: US Army Combat Capabilities Development Command Army Research Laboratory
Y. Shirley Meng: University of California, San Diego

Nature Energy, 2022, vol. 7, issue 6, 548-559

Abstract: Abstract High-energy density, improved safety, temperature resilience and sustainability are desirable properties for lithium-battery electrolytes, yet these metrics are rarely achieved simultaneously. Inspired by the compositions of clean fire-extinguishing agents, we demonstrate inherently safe liquefied gas electrolytes based on 1,1,1,2-tetrafluoroethane and pentafluoroethane that maintain >3 mS cm−1 ionic conductivity from −78 to +80 °C. As a result of beneficial solvation chemistry and a fluorine-rich environment, lithium cycling at >99% Coulombic efficiency for over 200 cycles at 3 mA cm−2 and 3 mAh cm−2 was demonstrated in addition to stable cycling of Li/NMC622 full batteries from −60 to +55 °C. In addition, we demonstrate a one-step solvent-recycling process based on the vapour pressure difference at different temperatures of the liquefied gas electrolytes, which promises sustainable operation at scale. This work provides a route to sustainable, temperature-resilient lithium-metal batteries with fire-extinguishing properties that maintain state-of-the-art electrochemical performance.

Date: 2022
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41560-022-01051-4 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natene:v:7:y:2022:i:6:d:10.1038_s41560-022-01051-4

Ordering information: This journal article can be ordered from
https://www.nature.com/nenergy/

DOI: 10.1038/s41560-022-01051-4

Access Statistics for this article

Nature Energy is currently edited by Fouad Khan

More articles in Nature Energy from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().