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DOE OSTI · 1425465

Supercapacitor

Wang, Donghai·Yi, Ran·Chen, Shuru
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Abstract

Embodiments provide a hybrid supercapacitor exhibiting high energy and power densities enabled by a high-performance lithium-alloy anode coupled with a porous carbon cathode in an electrolyte containing lithium salt. Embodiments include a size reduced silicon oxide anode, a boron-doped silicon oxide anode, and/or a carbon coated silicon oxide anode, which may improve cycling stability and rate performance. Further embodiments include a hybrid supercapacitor system using a Li-active anode in an electrolyte including LiPF6 in a mixture of ethylene carbonate, diethyl carbonate, and dimethyl carbonate (EC:DEC:DMC, 2:1:2 by vol.) and 10 wt % fluoroethylene carbonate (FEC), which may reduce the self-discharge rate.

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BibTeXRIS

Wang, Donghai, Yi, Ran, Chen, Shuru. 2018-03-06. Supercapacitor. https://www.osti.gov/biblio/1425465

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