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Effect of Short-Chain Amine Coatings on the Performance of LiFePO4 Li-Ion Battery Cathodes
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry. (strukturkemi)
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry. (strukturkemi)
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry. (strukturkemi)
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry. (strukturkemi)
2009 (English)In: Electrochemical and solid-state letters, ISSN 1099-0062, E-ISSN 1944-8775, Vol. 12, no 5, A99-A101 p.Article in journal (Refereed) Published
Abstract [en]

Thispaper probes the coating of LiFePO4 (Phostech Lithium) particles bythe self-adsorbance of surfactant molecules. The presence of the short-chainamines: hexadecylamine and polyetheramine [glyceryl poly(oxypropylene)triamine] on the particles isconfirmed qualitatively by X-ray photoelectron spectroscopy analysis, and the Brunauer–Emmett–Tellersurface area of the amine-coated LiFePO4 decreases with increasing amountsof amine on the surface. LiFePO4 with a 1  wt  % polyetheraminecoating exhibits a capacity of ~160  mAh/g, i.e., 13% higher thancould be achieved with the as-received LiFePO4. A small amountof oligomeric coating would thus appear to be capable ofincreasing ion transport close to the particle surface.

Place, publisher, year, edition, pages
The Electrochemical Society , 2009. Vol. 12, no 5, A99-A101 p.
Keyword [en]
coatings, electrochemical electrodes, lithium compounds, secondary cells, surfactants, X-ray photoelectron spectra
National Category
Chemical Sciences
Research subject
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-120125DOI: 10.1149/1.3082040ISI: 000264283100002OAI: oai:DiVA.org:uu-120125DiVA: diva2:302602
Available from: 2010-03-08 Created: 2010-03-08 Last updated: 2017-12-12Bibliographically approved

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Publisher's full texthttp://dx.doi.org/10.1149/1.3082040

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Brandell, DanielGustafsson, Torbjörn

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