Precipitation and Calcination of High-Capacity LiNiO2 Cathode Material for Lithium-Ion Batteries
Välikangas, J., Laine, P., Hietaniemi, M., Hu, T., Tynjälä, P., & Lassi, U. (2020). Precipitation and Calcination of High-Capacity LiNiO2 Cathode Material for Lithium-Ion Batteries. Applied Sciences, 10(24), Article 8988. https://doi.org/10.3390/app10248988
Published inApplied Sciences
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
This article presents the electrochemical results that can be achieved for pure LiNiO2 cathode material prepared with a simple, low-cost, and efficient process. The results clarify the roles of the process parameters, precipitation temperature, and lithiation temperature in the performance of high-quality LiNiO2 cathode material. Ni(OH)(2) with a spherical morphology was precipitated at different temperatures and mixed with LiOH to synthesize the LiNiO2 cathode material. The LiNiO2 calcination temperature was optimized to achieve a high initial discharge capacity of 231.7 mAh/g (0.1 C/2.6 V) with a first cycle efficiency of 91.3% and retaining a capacity of 135 mAh/g after 400 cycles. These are among the best results reported so far for pure LiNiO2 cathode material.
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Additional information about fundingThis research was funded by Business Finland, grant number (University of Oulu, BATCircle, Dnro 5877/31/2018).
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