Advances in the chemistry and applications of alkali-metal–gas batteries
Name
Gao Gallant_Nature Review Chem_Metal-Gas_revised.pdf
Description
Accepted version
Size
1.69 MB
Format
Adobe PDF
Checksum (MD5)
e812550ee0b9112c2bfdbd5f44d647c4
Author(s)
Gao, Haining
Gallant, Betar M
Date Issued
2020
Journal
Nature Reviews Chemistry
Publisher
Springer Science and Business Media LLC
Citation
Gao, Haining and Gallant, Betar M. 2020. "Advances in the chemistry and applications of alkali-metal–gas batteries." Nature Reviews Chemistry, 4 (11).
Version
Author's final manuscript
Abstract
© 2020, Springer Nature Limited. Rechargeable metal–gas batteries have the promise of exceeding the energy densities of Li-ion batteries. An archetypal metal–gas system is the nonaqueous lithium–oxygen (Li–O2) battery, which was developed with a view to deploying it in electric vehicles. However, operating this battery comes with substantial challenges that include parasitic chemical reactivity and degrees of electrochemical irreversibility, which contribute to poor charging and cycling. To address these challenges, researchers began exploring new nonaqueous metal–gas battery paradigms by manipulating the underlying O2 redox behaviour through electrolyte and materials design, using non-Li-metal anodes to change the nature of the solid discharge phase and improve reversibility, and using other gaseous reactants as the cathode. This Review presents the new understanding of nonaqueous gas-to-solid electrochemistry that has emerged from these concerted efforts, along with new hurdles that have been revealed as cells have gradually been reformulated. The ultimate impact of new metal–gas batteries needs to be re-examined for applications beyond electric vehicles that are more amenable to the individual chemistries and performance characteristics. [Figure not available: see fulltext.].
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1038/S41570-020-00224-7
