Correlation of aluminum doping and lithiation temperature with electrochemical performance of LiNi1-xAlxO2 cathode material
Välikangas, J., Laine, P., Hietaniemi, M., Hu, T., Selent, M., Tynjälä, P., & Lassi, U. (2023). Correlation of aluminum doping and lithiation temperature with electrochemical performance of LiNi1-xAlxO2 cathode material. Journal of Solid State Electrochemistry, 27(3), 641-654. https://doi.org/10.1007/s10008-022-05356-y
Julkaistu sarjassa
Journal of Solid State ElectrochemistryTekijät
Hu, Tao |
Päivämäärä
2023Tekijänoikeudet
© The Author(s) 2022
This article presents a process for producing LiNi1-xAlxO2 (0 < × < 0.05) cathode material with high capacity and enhanced cycle properties of 145 mAh/g after 600 cycles. The LiNi1-xAlxO2 (0 < × < 0.05) cathode material is prepared by mixing coprecipitated Ni(OH)2 with LiOH and Al(OH)3, followed by lithiation at temperature range of 650–710 °C, after which any residual lithium from lithiation is washed from the particle surfaces. Electrochemical performance was studied within full-cell and half-cell application; in addition, different material characterization methods were carried out to explain structure changes when certain amount of aluminum is introduced in the LiNi1-xAlxO2 structure. Surface analyses were carried out to demonstrate how washing process changes the chemical environment of the LiNi1-xAlxO2 secondary particle surface. The results demonstrate how Al doping, lithiation temperature, and the washing process affect the performance of the LiNi1-xAlxO2 cathode material.
Julkaisija
SpringerISSN Hae Julkaisufoorumista
1432-8488Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/164905966
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Lisätietoja rahoituksesta
Open Access funding provided by University of Oulu including Oulu University Hospital. The authors acknowledge Business Finland for research funding 2021–2024 (University of Oulu, BATCircle2.0, No. 44612/31/2020Lisenssi
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