Supercapacitor

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United States of America Patent

PATENT NO 9911541
SERIAL NO

14746011

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
THE PENN STATE RESEARCH FOUNDATION304 OLD MAIN UNIVERSITY PARK PA 16802

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Shuru State College, US 30 115
Wang, Donghai State College, US 40 658
Yi, Ran State College, US 18 89

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