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  • 1.
    Asfaw, Habtom Desta
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Kotronia, Antonia
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Tai, Cheuk-Wai
    Stockholm Univ, Dept Mat & Environm Chem, Arrhenius laboratory, Stockholm, Sweden.
    Nyholm, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Inorganic Chemistry.
    Edström, Kristina
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Tailoring the Microstructure and Electrochemical Performance of 3D Microbattery Electrodes Based on Carbon Foams2019In: Energy Technology, ISSN 0829-7681, E-ISSN 2057-4215, Vol. 7, no 10, article id UNSP 1900797Article in journal (Refereed)
    Abstract [en]

    Three‐dimensional (3D) carbon electrodes with suitable microstructural features and stable electrochemical performance are required for practical applications in 3D lithium (Li)‐ion batteries. Herein, the optimization of the microstructures and electrochemical performances of carbon electrodes derived from emulsion‐templated polymer foams are dealt with. Exploiting the rheological properties of the emulsion precursors, carbon foams with variable void sizes and specific surface areas are obtained. Carbon foams with an average void size of around 3.8 μm are produced, and improvements are observed both in the coulombic efficiency and the cyclability of the carbon foam electrodes synthesized at 2200 °C. A stable areal capacity of up to 1.22 mAh cm−2 (108 mAh g−1) is achieved at a current density of 50 μA cm−2. In addition, the areal capacity remains almost unaltered, i.e., 1.03 mAh cm−2 (91 mAh g−1), although the cycling current density increases to 500 μA cm−2 indicating that the materials are promising for power demanding applications.

  • 2.
    Kotronia, Antonia
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    The multifunctional role of carbon in electrochemical energy storage: Graphitic foams for 3D microbatteries and dual-ion batteries2019Licentiate thesis, comprehensive summary (Other academic)
    List of papers
    1. Tailoring the Microstructure and Electrochemical Performance of 3D Microbattery Electrodes Based on Carbon Foams
    Open this publication in new window or tab >>Tailoring the Microstructure and Electrochemical Performance of 3D Microbattery Electrodes Based on Carbon Foams
    Show others...
    2019 (English)In: Energy Technology, ISSN 0829-7681, E-ISSN 2057-4215, Vol. 7, no 10, article id UNSP 1900797Article in journal (Refereed) Published
    Abstract [en]

    Three‐dimensional (3D) carbon electrodes with suitable microstructural features and stable electrochemical performance are required for practical applications in 3D lithium (Li)‐ion batteries. Herein, the optimization of the microstructures and electrochemical performances of carbon electrodes derived from emulsion‐templated polymer foams are dealt with. Exploiting the rheological properties of the emulsion precursors, carbon foams with variable void sizes and specific surface areas are obtained. Carbon foams with an average void size of around 3.8 μm are produced, and improvements are observed both in the coulombic efficiency and the cyclability of the carbon foam electrodes synthesized at 2200 °C. A stable areal capacity of up to 1.22 mAh cm−2 (108 mAh g−1) is achieved at a current density of 50 μA cm−2. In addition, the areal capacity remains almost unaltered, i.e., 1.03 mAh cm−2 (91 mAh g−1), although the cycling current density increases to 500 μA cm−2 indicating that the materials are promising for power demanding applications.

    Keywords
    carbon foams, emulsions, lithium-ion storage, microbatteries, three-dimensional
    National Category
    Materials Chemistry
    Identifiers
    urn:nbn:se:uu:diva-393356 (URN)10.1002/ente.201900797 (DOI)000481541100001 ()
    Funder
    Swedish Research Council, 2012-4681Swedish Energy AgencyStandUpKnut and Alice Wallenberg Foundation
    Available from: 2019-09-19 Created: 2019-09-19 Last updated: 2019-11-04Bibliographically approved
    2. 3D Electrodes Fabricated from Nano-graphitic Carbon Foams with Enhanced Lithium-ion Storage
    Open this publication in new window or tab >>3D Electrodes Fabricated from Nano-graphitic Carbon Foams with Enhanced Lithium-ion Storage
    Show others...
    (English)Manuscript (preprint) (Other academic)
    National Category
    Materials Chemistry
    Identifiers
    urn:nbn:se:uu:diva-396382 (URN)
    Available from: 2019-11-04 Created: 2019-11-04 Last updated: 2019-11-06Bibliographically approved
    3. The Cathode Electrolyte Interphase on Graphite Positive Electrode in Dual-ion Batteries Probed Using X-ray Photoelectron Spectroscopy
    Open this publication in new window or tab >>The Cathode Electrolyte Interphase on Graphite Positive Electrode in Dual-ion Batteries Probed Using X-ray Photoelectron Spectroscopy
    Show others...
    (English)Manuscript (preprint) (Other academic)
    National Category
    Materials Chemistry
    Identifiers
    urn:nbn:se:uu:diva-396383 (URN)
    Available from: 2019-11-04 Created: 2019-11-04 Last updated: 2019-11-06Bibliographically approved
  • 3.
    Kotronia, Antonia
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Asfaw, Habtom Desta
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Brandell, Daniel
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Edström, Kristina
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    CaS- and MgS-assisted graphitization of porous carbons for energy storage applications2017Conference paper (Other academic)
  • 4.
    Kotronia, Antonia
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Asfaw, Habtom Desta
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Hahlin, Maria
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Brandell, Daniel
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Edström, Kristina
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    The Cathode Electrolyte Interphase on Graphite Positive Electrode in Dual-ion Batteries Probed Using X-ray Photoelectron SpectroscopyManuscript (preprint) (Other academic)
  • 5.
    Kotronia, Antonia
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Asfaw, Habtom Desta
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Tai, Cheuk-Wai
    Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm, Sweden.
    Edström, Kristina
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Brandell, Daniel
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    3D Electrodes Fabricated from Nano-graphitic Carbon Foams with Enhanced Lithium-ion StorageManuscript (preprint) (Other academic)
  • 6.
    Nilsson, Viktor
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry. Chalmers University of Technology.
    Kotronia, Antonia
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Edström, Kristina
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
    Johansson, Patrik
    Department of Physics, Chalmers University of Technology.
    Highly concentrated LiTFSI - EC electrolytes for Li metal batteriesManuscript (preprint) (Other academic)
1 - 6 of 6
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