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  4. Long-Term Cycling Performance of Aqueous Processed Ni-Rich LiNi0.8Co0.15Al0.05O2 Cathodes
 
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2021
Journal Article
Titel

Long-Term Cycling Performance of Aqueous Processed Ni-Rich LiNi0.8Co0.15Al0.05O2 Cathodes

Abstract
A lithium phosphate surface coating can protect water-sensitive LiNi0.8Co0.15Al0.05O2 (NCA) particles during aqueous electrode manufacturing. Herein, the coating process was performed by using a spray drying process, an easy method for upscaling. The coating provides enhanced protection against water that is reflected in a significantly reduced formation of detrimental water-induced surface species. As a consequence, full cells containing water-based electrodes with coated NCA and graphite anodes demonstrate good long-term 1C cycling performance with a capacity retention of 80% maintained after more than 730 cycles and a remaining capacity of approximately 130 mAh g−1.
Author(s)
Hofmann, Michael
Fraunhofer-Institut für Silicatforschung ISC
Nagler, Felix
Fraunhofer-Institut für Silicatforschung ISC
Guntow, Uwe
Fraunhofer-Institut für Silicatforschung ISC
Sextl, Gerhard
Fraunhofer-Institut für Silicatforschung ISC
Giffin, Guinevere A.
Fraunhofer-Institut für Silicatforschung ISC
Zeitschrift
Journal of the Electrochemical Society
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DOI
10.1149/1945-7111/ac054f
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Language
English
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Fraunhofer-Institut für Silicatforschung ISC
Tags
  • lithium phosphate-coated NCA

  • spray drying process

  • TG-MS analyses

  • long-term cycling performance

  • nickel-rich layered oxide cathode

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