{
  "date" : "2010-05-01",
  "identifier_doecontract" : "",
  "subject" : "25 ENERGY STORAGE; ACTIVATED CARBON; ENERGY DENSITY; POWER DENSITY; ELECTRODES; ELECTROLYTES; STABILITY; CAPACITORS; ELECTROCHEMISTRY; LITHIUM SULFATES; LITHIUM OXIDES; MANGANESE OXIDES; Supercapacitor; K{sub 0.27}MnO{sub 2}; K{sup +}; Electrochemical behavior; Aqueous electrolyte",
  "description" : "Studies of the electrochemical behavior of K{sub 0.27}MnO{sub 2}.0.6H{sub 2}O in K{sub 2}SO{sub 4} show the reversible intercalation/deintercalation of K{sup +}-ions in the lattice. An asymmetric supercapacitor activated carbon (AC)/0.5 mol l{sup -1} K{sub 2}SO{sub 4}/K{sub 0.27}MnO{sub 2}.0.6H{sub 2}O was assembled and tested successfully. It shows an energy density of 25.3 Wh kg{sup -1} at a power density of 140 W kg{sup -1}; at the same time it keeps a very good rate behavior with an energy density of 17.6 Wh kg{sup -1} at a power density of 2 kW kg{sup -1} based on the total mass of the active electrode materials, which is higher than that of AC/0.5 mol l{sup -1} Li{sub 2}SO{sub 4}/LiMn{sub 2}O{sub 4}. In addition, this asymmetric supercapacitor shows excellent cycling behavior without the need to remove oxygen from the electrolyte solution. This can be ascribed in part to the stability of the lamellar structure of K{sub 0.27}MnO{sub 2}.0.6H{sub 2}O. This asymmetric aqueous capacitor has great promise for practical applications due to high energy density at high power density. (author)",
  "language" : "English",
  "identifier_report" : "",
  "publisher_sponsor" : "",
  "publisher_country" : "Netherlands",
  "source" : "ECN",
  "purl" : "",
  "title" : "A cheap asymmetric supercapacitor with high energy at high power: Activated carbon//K{sub 0.27}MnO{sub 2}.0.6H{sub 2}O",
  "type" : "Journal Article",
  "subject_related" : "Supercapacitor; K{sub 0.27}MnO{sub 2}; K{sup +}; Electrochemical behavior; Aqueous electrolyte",
  "relation" : "Journal Name: Journal of Power Sources; Journal Volume: 195; Journal Issue: 9; Other Information: Elsevier Ltd. All rights reserved",
  "entry_date" : "2012-12-20",
  "subject_list" : [ "25 ENERGY STORAGE", "ACTIVATED CARBON", "ENERGY DENSITY", "POWER DENSITY", "ELECTRODES", "ELECTROLYTES", "STABILITY", "CAPACITORS", "ELECTROCHEMISTRY", "LITHIUM SULFATES", "LITHIUM OXIDES", "MANGANESE OXIDES", "Supercapacitor", "K{sub 0.27}MnO{sub 2}", "K{sup +}", "Electrochemical behavior", "Aqueous electrolyte" ],
  "publisher_availability" : "Available from: http://dx.doi.org/10.1016/j.jpowsour.2009.10.108",
  "rights" : "",
  "announced_date" : "2010-01-25",
  "type_qualifier" : "",
  "has_fulltext" : false,
  "coverage" : "",
  "identifier" : "",
  "journal_volume" : "195",
  "creator" : "Qu, Qunting; Li, Lei; Tian, Shu; Guo, Wenling; Wu, Yuping [New Energy and Materials Laboratory (NEML), Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (China)]; Holze, Rudolf [Technische Universitaet Chemnitz, Institut fuer Chemie, D-09107 Chemnitz (Germany)]",
  "site_ownership_code" : "ECN",
  "osti_id" : "21253027",
  "journal_issue" : "9",
  "resource_type" : "JOUR",
  "format" : "Medium: X; Size: page(s) 2789-2794",
  "journal_name" : [ ],
  "contributing_organizations" : "",
  "citation_location" : "https://www.osti.gov/etdeweb/biblio/21253027",
  "publication_year" : 2010,
  "subject_list_commas" : "25 ENERGY STORAGE, ACTIVATED CARBON, ENERGY DENSITY, POWER DENSITY, ELECTRODES, ELECTROLYTES, STABILITY, CAPACITORS, ELECTROCHEMISTRY, LITHIUM SULFATES, LITHIUM OXIDES, MANGANESE OXIDES, Supercapacitor, K{sub 0.27}MnO{sub 2}, K{sup +}, Electrochemical behavior, Aqueous electrolyte",
  "publisher" : "",
  "identifier_other" : "Journal ID: ISSN 0378-7753; JPSODZ; TRN: NL10V3218",
  "publisher_research" : "",
  "creators_list" : [ "Qu, Qunting", "Li, Lei", "Tian, Shu", "Guo, Wenling", "Wu, Yuping [New Energy and Materials Laboratory (NEML), Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433 (China)]", "Holze, Rudolf [Technische Universitaet Chemnitz, Institut fuer Chemie, D-09107 Chemnitz (Germany)]" ],
  "doi" : "https://doi.org/10.1016/J.JPOWSOUR.2009.10.108"
}