A1 Journal article (refereed)
Correlation of aluminum doping and lithiation temperature with electrochemical performance of LiNi1-xAlxO2 cathode material (2023)


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


JYU authors or editors


Publication details

All authors or editorsVälikangas, Juho; Laine, Petteri; Hietaniemi, Marianna; Hu, Tao; Selent, Marcin; Tynjälä, Pekka; Lassi, Ulla

Journal or seriesJournal of Solid State Electrochemistry

ISSN1432-8488

eISSN1433-0768

Publication year2023

Publication date23/12/2022

Volume27

Issue number3

Pages range641-654

PublisherSpringer

Publication countryGermany

Publication languageEnglish

DOIhttps://doi.org/10.1007/s10008-022-05356-y

Publication open accessOpenly available

Publication channel open accessPartially open access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/84785


Abstract

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.


Keywordslithium-ion batteriesaluminium

Free keywordslithium-ion battery; LNO; cathode; lithium-nickel oxide; aluminum


Contributing organizations


Ministry reportingYes

Reporting Year2023

Preliminary JUFO rating1


Last updated on 2024-03-04 at 23:08