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The stability of a field‐emission event, i.e., the stability of the emission current over a long period of time, against thermal effects, etc., is one of the key factors for its application in real devices. Although nanostructures have the advantages of high aspect ratios and faster device turn‐on times, the small masses and large surface areas make them vulnerable to both chemical and physical damages...
A simple gas‐phase‐based method is employed to coat V2O5 on SnO2 nanowires. An electrode made from the SnO2/V2O5 core/shell‐nanowires delivers a high power density of about 60 kW kg−1 while the energy density remains 282 W h kg−1. In addition, the electrode exhibits very‐good cycling stability. Such good performance shows very‐promising potential in the application of a high‐rate lithium battery....
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