The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Probing the Reaction Kinetics of the Charge Reactions of Nonaqueous Li–O2 Batteries
Abstract
Understanding the reaction mechanism of nonaqueous oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is key to increase the low round-trip efficiency and power capability of rechargeable Li-air batteries. Here we show that the ORR kinetics are much faster than OER kinetics and OER occurs in two distinct stages upon Li-air battery charging. The first OER stage occurs at low overpotentials (<400 mV) with a slopping voltage profile, whose kinetics are relatively insensitive to charge rates and catalysts. This OER stage could be attributed to the delithiation of the outer part of Li2O2 forming lithium-deficient Li2-xO2, which is chemically disproportionate to evolve O2. The second stage takes place at high overpotentials (400-1200 mV), whose kinetics are sensitive to discharge/charge rates and catalysts, which can be attributed to the oxidation of bulk Li2O2 particles. Our study provides insights into bridging current two schools of thought on the OER mechanism.
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Citations
Cites
CRC Handbook of Chemistry and Physics
(2014) · doi:10.1201/b17118 · Cited by 57,706
Li-O2 and Li-S batteries with high energy storage
Bruce, P. G., Freunberger, S. A., Hardwick, L. J., & Tarascon, J.-M. (2012) · Nature Materials · doi:10.1038/nmat3191 · Cited by 9,479
Cited by
Oxygen electrocatalysts in metal–air batteries: from aqueous to nonaqueous electrolytes
Wang, Z.-L., Xu, D., Xu, J.-J., & Zhang, X.-B. (2014) · Chem. Soc. Rev. · doi:10.1039/c3cs60248f · Cited by 1,447
Lithium–Oxygen Batteries and Related Systems: Potential, Status, and Future
Kwak, W.-J., Rosy, Sharon, D., Xia, C., Kim, H., Johnson, L. R., Bruce, P. G., Nazar, L. F., Sun, Y.-K., Frimer, A. A., et al. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.9b00609 · Cited by 1,009
Lithium–oxygen batteries: bridging mechanistic understanding and battery performance
Lu, Y.-C., Gallant, B. M., Kwabi, D. G., Harding, J. R., Mitchell, R. R., Whittingham, M. S., & Shao-Horn, Y. (2013) · Energy & Environmental Science · doi:10.1039/c3ee23966g · Cited by 927
Self-citationNonaqueous Li–Air Batteries: A Status Report
Luntz, A. C., & McCloskey, B. D. (2014) · Chemical Reviews · doi:10.1021/cr500054y · Cited by 925
Carbon-based electrocatalysts for advanced energy conversion and storage
Zhang, J., Xia, Z., & Dai, L. (2015) · Science Advances · doi:10.1126/sciadv.1500564 · Cited by 735
Metadata
- Authors
- Lu, Y.-C., & Shao-Horn, Y.
- Venue
- The Journal of Physical Chemistry Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-12-18
- Volume
- 4
- Issue
- 1
- Pages
- 93-99
- ISSN
- 1948-7185 (ISSN-L)
- OpenAlex
- W2004811317
- Cited by
- 346
- References
- 2
- FWCI
- 22.18
- Type
- journal article
- Language
- en
- Open access
- closed
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