Supercapacitor with hexacyanometallate cathode, activated carbon anode, and non-aqueous electrolyte

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United States of America Patent

PATENT NO 9159502
APP PUB NO 20130257389A1
SERIAL NO

13603322

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Abstract

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A supercapacitor is provided with a method for fabricating the supercapacitor. The method provides dried hexacyanometallate particles having a chemical formula AmM1xM2y(CN)6.pH2O with a Prussian Blue hexacyanometallate, crystal structure, where A is an alkali or alkaline-earth cation, and M1 and M2 are metals with 2+ or 3+ valance positions. The variable m is in the range of 0.5 to 2, x is in the range of 0.5 to 1.5, y is in the range of 0.5 to 1.5, and p is in the range of 0 to 6. The hexacyanometallate particles are mixed with a binder and electronic conductor powder, to form a cathode comprising AmM1xM2y(CN)6.pH2O. The method also forms an activated carbon anode and a membrane separating the cathode from the anode, permeable to A and A′ cations. Finally, an electrolyte is added with a metal salt including A′ cations. The electrolyte may be aqueous.

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Patent Owner(s)

Patent OwnerAddress
SHARP KABUSHIKI KAISHASAKAI-KU SAKAI CITY OSAKA 590-8522

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kisdarjono, Hidayat Vancouver, US 15 138
Lee, Jong-Jan Camas, US 167 2838
Lu, Yuhao Vancouver, US 63 290
Vail, Sean Andrew Vancouver, US 16 59

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