Improvement of electrochemical performance of Li[Ni0.8Co0.15Al0.05]O2 cathode materials by AlF3 coating at various temperatures / Byung-Chun Park in Industrial & engineering chemistry research, Vol. 47 n°11 (Juin 2008)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 47 n°11 (Juin 2008) . - p. 3876–3882 Titre : Improvement of electrochemical performance of Li[Ni0.8Co0.15Al0.05]O2 cathode materials by AlF3 coating at various temperatures Type de document : texte imprimé Auteurs : Byung-Chun Park, Auteur ; Hyung-Bae Kim, Auteur ; Hyun Joo Bang, Auteur ; Jai Prakash, Auteur Année de publication : 2008 Article en page(s) : p. 3876–3882 Note générale : Bibliogr. p. 3881-3882 Langues : Anglais (eng) Mots-clés : AlF3 coating  Electrochemical impedance spectroscopy Résumé : A thin AlF3 layer of ∼10 nm was uniformly coated on the particle surface of Li[Ni0.8Co0.15Al0.05]O2. The AlF3 coating improved cycle performance at 55, 30, and –10 °C and improved storage characteristics at 60 °C. In studies of differential capacity (dQ/dV) versus voltage, the AlF3-coated Li[Ni0.8Co0.15Al0.05]O2 showed little variation in redox peaks with cycling. Electrochemical impedance spectroscopy suggested that the AlF3 coating played an important role in stabilizing the interface between the cathode and the electrolyte. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0715308 [article] Improvement of electrochemical performance of Li[Ni0.8Co0.15Al0.05]O2 cathode materials by AlF3 coating at various temperatures [texte imprimé] / Byung-Chun Park, Auteur ; Hyung-Bae Kim, Auteur ; Hyun Joo Bang, Auteur ; Jai Prakash, Auteur . - 2008 . - p. 3876–3882. Bibliogr. p. 3881-3882 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°11 (Juin 2008) . - p. 3876–3882 Mots-clés : AlF3 coating  Electrochemical impedance spectroscopy Résumé : A thin AlF3 layer of ∼10 nm was uniformly coated on the particle surface of Li[Ni0.8Co0.15Al0.05]O2. The AlF3 coating improved cycle performance at 55, 30, and –10 °C and improved storage characteristics at 60 °C. In studies of differential capacity (dQ/dV) versus voltage, the AlF3-coated Li[Ni0.8Co0.15Al0.05]O2 showed little variation in redox peaks with cycling. Electrochemical impedance spectroscopy suggested that the AlF3 coating played an important role in stabilizing the interface between the cathode and the electrolyte. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0715308

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