Pseudo-capacitor device for aqueous electrolytes

Title: Pseudo-capacitor device for aqueous electrolytes

Full Record
Other Related Research

Abstract

A pseudo-capacitor having a high energy storage capacity develops a double layer capacitance as well as a Faradaic or battery-like redox reaction, also referred to as pseudo-capacitance. The Faradaic reaction gives rise to a capacitance much greater than that of the typical ruthenate oxide ultracapacitor which develops only charge separation-based double layer capacitance. The capacitor employs a lead and/or bismuth/ruthenate and/or iridium system having the formula A.sub.2 ›B.sub.2-x Pb.sub.x !O.sub.7-y, where A=Pb, Bi, and B=Ru, Ir, and O

Inventors:

Prakash, Jai ^[1]; Thackeray, Michael M ^[2]; Dees, Dennis W ^[3]; Vissers, Donald R ^[4]; Myles, Kevin M ^[5]

3849 NW. 65th Ave., Gainesville, FL 32653
1763 Cliffside Ct., Naperville, IL 60565
6224 Middaugh Ave., Downers Grove, IL 60516
611 Clover Ct., Naperville, IL 60540
1231 60th Pl., Downers Grove, IL 60516-1856

Issue Date:: 1998-01-01

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL

OSTI Identifier:: 872002

Patent Number(s):: 5841627

Assignee:: Prakash, Jai (3849 NW. 65th Ave., Gainesville, FL 32653);Thackeray, Michael M. (1763 Cliffside Ct., Naperville, IL 60565);Dees, Dennis W. (6224 Middaugh Ave., Downers Grove, IL 60516);Vissers, Donald R. (611 Clover Ct., Naperville, IL 60540);Myles, Kevin M. (1231 60th Pl., Downers Grove, IL 60516-1856)

DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: pseudo-capacitor; device; aqueous; electrolytes; energy; storage; capacity; develops; double; layer; capacitance; faradaic; battery-like; redox; reaction; referred; pseudo-capacitance; rise; typical; ruthenate; oxide; ultracapacitor; charge; separation-based; capacitor; employs; lead; bismuth; iridium; formula; b; 2-x; pb; 7-y; ru; ltoreq; limits; amount; electrodes; increasing; synthesized; temperatures; 40; degree; -80; form; compound; surface; electronic; conductivity; combination; increased; affords; power; density; expensive; substantially; reduced; content; improving; aqueous electrolyte; redox reaction; substantially reduced; energy storage; double layer; power density; substantially reduce; electronic conductivity; storage capacity; lead content; /361/

Citation Formats


                    Prakash, Jai, Thackeray, Michael M, Dees, Dennis W, Vissers, Donald R, and Myles, Kevin M. Pseudo-capacitor device for aqueous electrolytes.  United States: N. p., 1998. 
        Web.

Copy to clipboard


                    Prakash, Jai, Thackeray, Michael M, Dees, Dennis W, Vissers, Donald R, & Myles, Kevin M. Pseudo-capacitor device for aqueous electrolytes.  United States.

Copy to clipboard


                    Prakash, Jai, Thackeray, Michael M, Dees, Dennis W, Vissers, Donald R, and Myles, Kevin M. Thu .  
        "Pseudo-capacitor device for aqueous electrolytes".  United States.  https://www.osti.gov/servlets/purl/872002.

Copy to clipboard


                    
@article{osti_872002,

  title        = {Pseudo-capacitor device for aqueous electrolytes},

  author       = {Prakash, Jai and Thackeray, Michael M and Dees, Dennis W and Vissers, Donald R and Myles, Kevin M},

  abstractNote = {A pseudo-capacitor having a high energy storage capacity develops a double layer capacitance as well as a Faradaic or battery-like redox reaction, also referred to as pseudo-capacitance. The Faradaic reaction gives rise to a capacitance much greater than that of the typical ruthenate oxide ultracapacitor which develops only charge separation-based double layer capacitance. The capacitor employs a lead and/or bismuth/ruthenate and/or iridium system having the formula A.sub.2 ›B.sub.2-x Pb.sub.x !O.sub.7-y, where A=Pb, Bi, and B=Ru, Ir, and O},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1998},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Pseudo-capacitor device for aqueous electrolytes

Patent Prakash, J; Thackeray, M M; Dees, D W; ...

A pseudo-capacitor having a high energy storage capacity develops a double layer capacitance as well as a Faradaic or battery-like redox reaction, also referred to as pseudo-capacitance. The Faradaic reaction gives rise to a capacitance much greater than that of the typical ruthenate oxide ultracapacitor which develops only charge separation-based double layer capacitance. The capacitor employs a lead and/or bismuth/ruthenate and/or iridium system having the formula A{sub 2}[B{sub 2{minus}x}Pb{sub x}]O{sub 7{minus}y}, where A=Pb, Bi, and B=Ru, Ir, and O<=}1 and O<0.5 and limits the amount of ruthenate and/or iridium in the electrodes while increasing the energy storage capacity. The ruthenatemore »« less
Multi-electrode double layer capacitor having single electrolyte seal and aluminum-impregnated carbon cloth electrodes

Patent Farahmandi, C Joseph [San Diego, CA]; Dispennette, John M [Oceanside, CA]; Blank, Edward [San Diego, CA]; ...

A single cell, multi-electrode high performance double layer capacitor includes first and second flat stacks of electrodes adapted to be housed in a closeable two-part capacitor case which includes only a single electrolyte seal. Each electrode stack has a plurality of electrodes connected in parallel, with the electrodes of one stack being interleaved with the electrodes of the other stack to form an interleaved stack, and with the electrodes of each stack being electrically connected to respective capacitor terminals. A porous separator sleeve is inserted over the electrodes of one stack before interleaving to prevent electrical shorts between the electrodes.more »« less
Full Text Available
Autogenous electrolyte, non-pyrolytically produced solid capacitor structure

Patent Sharp, Donald J [Albuquerque, NM]; Armstrong, Pamela S [Abingdon, MD]; Panitz, Janda Kirk G [Edgewood, NM]

A solid electrolytic capacitor having a solid electrolyte comprising manganese dioxide dispersed in an aromatic polyamide capable of further cure to form polyimide linkages, the solid electrolyte being disposed between a first electrode made of valve metal covered by an anodic oxide film and a second electrode opposite the first electrode. The electrolyte autogenously produces water, oxygen, and hydroxyl groups which act as healing substances and is not itself produced pyrolytically. Reduction of the manganese dioxide and the water molecules released by formation of imide linkages result in substantially improved self-healing of anodic dielectric layer defects.
Full Text Available
Multi-electrode double layer capacitor having single electrolyte seal and aluminum-impregnated carbon cloth electrodes

Patent Farahmandi, C Joseph [San Diego, CA]; Dispennette, John M [Oceanside, CA]; Blank, Edward [San Diego, CA]; ...

A single cell, multi-electrode high performance double layer capacitor includes first and second flat stacks of electrodes adapted to be housed in a closeable two-part capacitor case which includes only a single electrolyte seal. Each electrode stack has a plurality of electrodes connected in parallel, with the electrodes of one stack being interleaved with the electrodes of the other stack to form an interleaved stack, and with the electrodes of each stack being electrically connected to respective capacitor terminals. A porous separator sleeve is inserted over the electrodes of one stack before interleaving to prevent electrical shorts between the electrodes.more »« less
Full Text Available
Method of making a multi-electrode double layer capacitor having single electrolyte seal and aluminum-impregnated carbon cloth electrodes

Patent Farahmandi, C Joseph [San Diego, CA]; Dispennette, John M [Oceanside, CA]; Blank, Edward [San Diego, CA]; ...

A method of making a double layer capacitior includes first and second flat stacks of electrodes adapted to be housed in a closeable two-part capacitor case which includes only a single electrolyte seal. Each electrode stack has a plurality of electrodes connected in parallel, with the electrodes of one stack being interleaved with the electrodes of the other stack to form an interleaved stack, and with the electrodes of each stack being electrically connected to respective capacitor terminals. A porous separator is positioned against the electrodes of one stack before interleaving to prevent electrical shorts between the electrodes. The electrodesmore »« less
Full Text Available

Similar Records