Co‐precipitation of NCM 811 Using Recycled and Purified Manganese : Effect of Impurities on the Battery Cell Performance
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
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ChemElectroChemAuthors
Hu, Tao |
Date
2023Copyright
© 2023 The Authors. ChemElectroChem published by Wiley-VCH GmbH
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.
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Wiley-VCH VerlagISSN Search the Publication Forum
2196-0216Keywords
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https://converis.jyu.fi/converis/portal/detail/Publication/184143262
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Additional information about funding
Authors acknowledge Busines sFinland for research funding 2021–2024 (Universityof Oulu, BATCircle2.0,No. 44612/31/2020).License
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