Effect of the size-selective silver clusters on lithium peroxide morphology in lithium–oxygen batteries
- Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
- Argonne National Lab. (ANL), Argonne, IL (United States). Electron Microscopy Center
- Hanyang Univ., Seoul (Korea, Republic of). Dept. of Energy Engineering
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division. Nanoscience and Technology Division; Yale Univ., New Haven, CT (United States). Dept. of Chemical and Environmental Engineering; Univ. of Chicago, IL (United States). Inst. for Molecular Engineering
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division. Nanoscience and Technology Division
Lithium–oxygen batteries have the potential needed for long-range electric vehicles, but the charge and discharge chemistries are complex and not well understood. The active sites on cathode surfaces and their role in electrochemical reactions in aprotic lithium–oxygen cells are difficult to ascertain because the exact nature of the sites is unknown. In this paper, we report the deposition of subnanometre silver clusters of exact size and number of atoms on passivated carbon to study the discharge process in lithium–oxygen cells. The results reveal dramatically different morphologies of the electrochemically grown lithium peroxide dependent on the size of the clusters. This dependence is found to be due to the influence of the cluster size on the formation mechanism, which also affects the charge process. Finally, the results of this study suggest that precise control of subnanometre surface structure on cathodes can be used as a means to improve the performance of lithium–oxygen cells.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States); Hanyang Univ., Seoul (Korea, Republic of)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Office of Science (SC), Basic Energy Sciences (BES); Ministry of Knowledge Economy (Korea, Republic of); National Research Foundation of Korea (NRF)
- Grant/Contract Number:
- AC02-06CH11357; 20124010203310; 2009-0092780
- OSTI ID:
- 1356644
- Journal Information:
- Nature Communications, Vol. 5; ISSN 2041-1723
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Similar Records
Oxidative decomposition mechanisms of lithium peroxide clusters: an Ab Initio study
Computational study of the adsorption of bimetallic clusters on alumina substrate