A1 Journal article (refereed)
Co‐precipitation of NCM 811 Using Recycled and Purified Manganese : Effect of Impurities on the Battery Cell Performance (2023)


Kauppinen, T., Laine, P., Välikangas, J., Tynjälä, P., Hu, T., Salminen, J., & Lassi, U. (2023). Co‐precipitation of NCM 811 Using Recycled and Purified Manganese : Effect of Impurities on the Battery Cell Performance. ChemElectroChem, 10(17), Article e202300265. https://doi.org/10.1002/celc.202300265


JYU authors or editors


Publication details

All authors or editorsKauppinen, Toni; Laine, Petteri; Välikangas, Juho; Tynjälä, Pekka; Hu, Tao; Salminen, Justin; Lassi, Ulla

Journal or seriesChemElectroChem

ISSN2196-0216

eISSN2196-0216

Publication year2023

Publication date03/08/2023

Volume10

Issue number17

Article numbere202300265

PublisherWiley-VCH Verlag

Publication countryGermany

Publication languageEnglish

DOIhttps://doi.org/10.1002/celc.202300265

Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/88762


Abstract

Co-precipitation of NCM811 precursors and cathodes for lithium-ion batteries was carried out using recycled and purified manganese solution. In this paper, the aim is to study the role of the impurities in the co-precipitation step of NMC811 and further in the battery cell performance. Based on the results, cationic impurities (Ca, Zn, Mg, and Fe) are co-precipitated in the NMC811 precursors, as expected based on the thermodynamic considerations. The presence of these impurities was confirmed by several characterizations. Impurities did not affect the particle morphology or tap density of NMC811. Impurities had surprisingly minor effect on the cell performance. During the cycling, these cells provided good cyclability and high-capacity retention after 1100 cycles compared to reference samples.


Keywordslithium-ion batteriesprecipitation (active)impuritiesmanganeseresidues

Free keywordsanodesludge; cathodematerial; manganese; NCM811; residue


Contributing organizations


Ministry reportingYes

Reporting Year2023

Preliminary JUFO rating1


Last updated on 2024-03-04 at 18:35