期刊
NANO LETTERS
卷 11, 期 8, 页码 3329-3333出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl2017042
关键词
Li ion battery; supercapacitor; hybrid electrochemical device; nanostructures
类别
资金
- Hartley Family Foundation
- Rice University
- National Institute of Health [RO1CA12842]
- Army Research Office
- Multidisciplinary University Research Initiative (MURI)
Hybrid electrochemical energy storage devices combine the advantages of battery and supercapacitors, resulting in systems of high energy and power density. Using LiPF6 electrolyte, the Ni-Sn/PANI electrochemical system, free of Li-based electrodes, works on a hybrid mechanism based on Li intercalation at the anode and PF6- doping at the cathode. Here, we also demonstrate a composite nanostructure electrochemical device with the anode (Ni-Sn) and cathode (polyaniline, PANT) nanowires packaged within conformal polymer core-shell separator. Parallel array of these nanowire devices shows reversible areal capacity of similar to 3 mu Ah/cm(2) at a current rate of 0.03 mA/cm(2). The work shows the ultimate miniaturization possible for energy storage devices where all essential components can be engineered on a single nanowire.
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