In Situ Transmission Electron Microscopy Observations of Electrochemical Oxidation of Li2O2
In this Letter, we report the first in situ transmission electron microscopy observation of electrochemical oxidation of Li2O2, providing insights into the rate limiting processes that govern charge in Li–O2 cells. In these studies, oxidation of electrochemically formed Li2O2 particles, supported on...
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| Veröffentlicht in: | Nano letters 2013-05, Vol.13 (5), p.2209-2214 |
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| container_issue | 5 |
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| container_title | Nano letters |
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| creator | Zhong, Li Mitchell, Robert R Liu, Yang Gallant, Betar M Thompson, Carl V Huang, Jian Yu Mao, Scott X Shao-Horn, Yang |
| description | In this Letter, we report the first in situ transmission electron microscopy observation of electrochemical oxidation of Li2O2, providing insights into the rate limiting processes that govern charge in Li–O2 cells. In these studies, oxidation of electrochemically formed Li2O2 particles, supported on multiwall carbon nanotutubes (MWCNTs), was found to occur preferentially at the MWCNT/Li2O2 interface, suggesting that electron transport in Li2O2 ultimately limits the oxidation kinetics at high rates or overpotentials. |
| doi_str_mv | 10.1021/nl400731w |
| format | Article |
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| ispartof | Nano letters, 2013-05, Vol.13 (5), p.2209-2214 |
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| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Electronic transport in multilayers, nanoscale materials and structures Exact sciences and technology Materials science Nanoscale materials and structures: fabrication and characterization Nanotubes Physics |
| title | In Situ Transmission Electron Microscopy Observations of Electrochemical Oxidation of Li2O2 |
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