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On the Efficacy of Electrocatalysis in Nonaqueous Li–O2 Batteries
Abstract
Heterogeneous electrocatalysis has become a focal point in rechargeable Li-air battery research to reduce overpotentials in both the oxygen reduction (discharge) and especially oxygen evolution (charge) reactions. In this study, we show that past reports of traditional cathode electrocatalysis in nonaqueous Li-O(2) batteries were indeed true, but that gas evolution related to electrolyte solvent decomposition was the dominant process being catalyzed. In dimethoxyethane, where Li(2)O(2) formation is the dominant product of the electrochemistry, no catalytic activity (compared to pure carbon) is observed using the same (Au, Pt, MnO(2)) nanoparticles. Nevertheless, the onset potential of oxygen evolution is only slightly higher than the open circuit potential of the cell, indicating conventional oxygen evolution electrocatalysis may be unnecessary.
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Citations
Cites
Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode
Nørskov, J. K., Rossmeisl, J., Logadottir, A., Lindqvist, L., Kitchin, J. R., Bligaard, T., & Jónsson, H. (2004) · The Journal of Physical Chemistry B · doi:10.1021/jp047349j · Cited by 13,153
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Electrochemical in situ investigations of SEI and dendrite formation on the lithium metal anode
Bieker, G., Winter, M., & Bieker, P. (2015) · Physical Chemistry Chemical Physics · doi:10.1039/c4cp05865h · Cited by 777
Cation-disordered rocksalt-type high-entropy cathodes for Li-ion batteries
Lun, Z., Ouyang, B., Kwon, D.-H., Ha, Y., Foley, E. E., Huang, T.-Y., Cai, Z., Kim, H., Balasubramanian, M., Sun, Y., et al. (2021) · Nature Materials · doi:10.1038/s41563-020-00816-0 · Cited by 689
Self-citationFrom lithium to sodium: Cell chemistry of room temperature sodium–air and sodium–sulfur batteries
Adelhelm, P., Hartmann, P., Bender, C. L., Busche, M., Eufinger, C., & Janek, J. (2015) · Beilstein Journal of Nanotechnology · doi:10.3762/bjnano.6.105 · Cited by 478
Critical Challenges in Rechargeable Aprotic Li–O2 Batteries
Feng, N., He, P., & Zhou, H. (2016) · Advanced Energy Materials · doi:10.1002/aenm.201502303 · Cited by 423
Metadata
- Authors
- McCloskey, B. D., Scheffler, R., Speidel, A., Bethune, D. S., Shelby, R. M., & Luntz, A. C.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-10-21
- Volume
- 133
- Issue
- 45
- Pages
- 18038-18041
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2330360667
- Cited by
- 652
- References
- 1
- FWCI
- 42.78
- Type
- journal article
- Language
- en
- Open access
- closed
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- McCloskey, B. D., Scheffler, R., Speidel, A., Bethune, D. S., Shelby, R. M., & Luntz, A. C. (2011). On the Efficacy of Electrocatalysis in Nonaqueous Li–O2 Batteries. Journal of the American Chemical Society. https://doi.org/10.1021/ja207229n
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