Reactions in the rechargeable Lithium–O2 battery with alkyl carbonate electrolytes

Freunberger SA, Chen Y, Peng Z, Griffin JM, Hardwick LJ, Bardé F, Novák P, Bruce PG. 2011. Reactions in the rechargeable Lithium–O2 battery with alkyl carbonate electrolytes. Journal of the American Chemical Society. 133(20), 8040–8047.

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Journal Article | Published | English
Author
Freunberger, Stefan AlexanderIST Austria ; Chen, Yuhui; Peng, Zhangquan; Griffin, John M.; Hardwick, Laurence J.; Bardé, Fanny; Novák, Petr; Bruce, Peter G.
Abstract
The nonaqueous rechargeable lithium–O2 battery containing an alkyl carbonate electrolyte discharges by formation of C3H6(OCO2Li)2, Li2CO3, HCO2Li, CH3CO2Li, CO2, and H2O at the cathode, due to electrolyte decomposition. Charging involves oxidation of C3H6(OCO2Li)2, Li2CO3, HCO2Li, CH3CO2Li accompanied by CO2 and H2O evolution. Mechanisms are proposed for the reactions on discharge and charge. The different pathways for discharge and charge are consistent with the widely observed voltage gap in Li–O2 cells. Oxidation of C3H6(OCO2Li)2 involves terminal carbonate groups leaving behind the OC3H6O moiety that reacts to form a thick gel on the Li anode. Li2CO3, HCO2Li, CH3CO2Li, and C3H6(OCO2Li)2 accumulate in the cathode on cycling correlating with capacity fading and cell failure. The latter is compounded by continuous consumption of the electrolyte on each discharge.
Publishing Year
Date Published
2011-04-27
Journal Title
Journal of the American Chemical Society
Volume
133
Issue
20
Page
8040-8047
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Freunberger SA, Chen Y, Peng Z, et al. Reactions in the rechargeable Lithium–O2 battery with alkyl carbonate electrolytes. Journal of the American Chemical Society. 2011;133(20):8040-8047. doi:10.1021/ja2021747
Freunberger, S. A., Chen, Y., Peng, Z., Griffin, J. M., Hardwick, L. J., Bardé, F., … Bruce, P. G. (2011). Reactions in the rechargeable Lithium–O2 battery with alkyl carbonate electrolytes. Journal of the American Chemical Society. ACS. https://doi.org/10.1021/ja2021747
Freunberger, Stefan Alexander, Yuhui Chen, Zhangquan Peng, John M. Griffin, Laurence J. Hardwick, Fanny Bardé, Petr Novák, and Peter G. Bruce. “Reactions in the Rechargeable Lithium–O2 Battery with Alkyl Carbonate Electrolytes.” Journal of the American Chemical Society. ACS, 2011. https://doi.org/10.1021/ja2021747.
S. A. Freunberger et al., “Reactions in the rechargeable Lithium–O2 battery with alkyl carbonate electrolytes,” Journal of the American Chemical Society, vol. 133, no. 20. ACS, pp. 8040–8047, 2011.
Freunberger SA, Chen Y, Peng Z, Griffin JM, Hardwick LJ, Bardé F, Novák P, Bruce PG. 2011. Reactions in the rechargeable Lithium–O2 battery with alkyl carbonate electrolytes. Journal of the American Chemical Society. 133(20), 8040–8047.
Freunberger, Stefan Alexander, et al. “Reactions in the Rechargeable Lithium–O2 Battery with Alkyl Carbonate Electrolytes.” Journal of the American Chemical Society, vol. 133, no. 20, ACS, 2011, pp. 8040–47, doi:10.1021/ja2021747.

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