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Title: Pseudo-capacitor device for aqueous electrolytes

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:
 [1];  [2];  [3];  [4];  [5]
  1. 3849 NW. 65th Ave., Gainesville, FL 32653
  2. 1763 Cliffside Ct., Naperville, IL 60565
  3. 6224 Middaugh Ave., Downers Grove, IL 60516
  4. 611 Clover Ct., Naperville, IL 60540
  5. 1231 60th Pl., Downers Grove, IL 60516-1856
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
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)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS
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.
Prakash, Jai, Thackeray, Michael M, Dees, Dennis W, Vissers, Donald R, & Myles, Kevin M. Pseudo-capacitor device for aqueous electrolytes. United States.
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.
@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}
}

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Works referenced in this record:

Oxygen Electrocatalysis on Some Oxide Pyrochlores
journal, January 1983