Performance and Ageing Robustness of Graphite/NMC Pouch Prototypes Manufactured through Eco-Friendly Materials and Processes

Nicholas Loeffler, Guk.-T. Kim, Stefano Passerini, Cesar Gutierrez, Iosu Cendoya, Iratxe De Meatza, Fabrizio Alessandrini, Giovanni B. Appetecchi

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Abstract

Graphite/lithium nickel-manganese-cobalt oxide (NMC), stacked pouch cells with nominal capacity of 15–18 Ah were designed, developed, and manufactured for automotive applications in the frame of the European Project GREENLION. A natural, water-soluble material was used as the main electrode binder, thus allowing the employment of H2O as the only processing solvent. The electrode formulations were developed, optimized, and upscaled for cell manufacturing. Prolonged cycling and ageing tests revealed excellent capacity retention and robustness toward degradation phenomena. For instance, above 99 % of the initial capacity is retained upon 500 full charge/discharge cycles, corresponding to a fading of 0.004 % per cycle, and about 80 % of the initial capacity is delivered after 8 months ageing at 45 °C. The stacked soft-packaged cells have shown very reproducible characteristics and performance, reflecting the goodness of design and manufacturing.
Original languageEnglish
Pages (from-to)3581 - 3587
Number of pages7
JournalChemSusChem
Volume10
Issue number18
DOIs
Publication statusPublished - 2017

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All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

Cite this

Loeffler, N., Kim, G-T., Passerini, S., Gutierrez, C., Cendoya, I., De Meatza, I., ... Appetecchi, G. B. (2017). Performance and Ageing Robustness of Graphite/NMC Pouch Prototypes Manufactured through Eco-Friendly Materials and Processes. ChemSusChem, 10(18), 3581 - 3587. https://doi.org/10.1002/cssc.201701087