University of Oulu

Välikangas, J.; Laine, P.; Hietaniemi, M.; Hu, T.; Tynjälä, P.; Lassi, U. Precipitation and Calcination of High-Capacity LiNiO₂ Cathode Material for Lithium-Ion Batteries. Appl. Sci. 2020, 10, 8988.

Precipitation and calcination of high-capacity LiNiO₂ cathode material for lithium-ion batteries

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Author: Välikangas, Juho1; Laine, Petteri1; Hietaniemi, Marianna1;
Organizations: 1Research Unit of Sustainable Chemistry, University of Oulu, P.O. Box 4000, FI-90014 Oulu, Finland
2University of Jyvaskyla, Kokkola University Consortium Chydenius, Talonpojankatu 2B, FI-67100 Kokkola, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 8.4 MB)
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Language: English
Published: Multidisciplinary Digital Publishing Institute, 2020
Publish Date: 2021-01-25


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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Series: Applied sciences
ISSN: 2076-3417
ISSN-E: 2076-3417
ISSN-L: 2076-3417
Volume: 10
Issue: 24
Article number: 8988
DOI: 10.3390/app10248988
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
Funding: This research was funded by Business Finland, grant number (University of Oulu, BATCircle, Dnro 5877/31/2018).
Copyright information: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (