Cargando…

Annealing Optimization of Lithium Cobalt Oxide Thin Film for Use as a Cathode in Lithium-Ion Microbatteries

The microbatteries field is an important direction of energy storage systems, requiring the careful miniaturization of existing materials while maintaining their properties. Over recent decades, LiCoO(2) has attracted considerable attention as cathode materials for lithium-ion batteries due to its p...

Descripción completa

Detalles Bibliográficos
Autores principales: Bekzhanov, Akzhan, Uzakbaiuly, Berik, Mukanova, Aliya, Bakenov, Zhumabay
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268197/
https://www.ncbi.nlm.nih.gov/pubmed/35808024
http://dx.doi.org/10.3390/nano12132188
_version_ 1784743917891092480
author Bekzhanov, Akzhan
Uzakbaiuly, Berik
Mukanova, Aliya
Bakenov, Zhumabay
author_facet Bekzhanov, Akzhan
Uzakbaiuly, Berik
Mukanova, Aliya
Bakenov, Zhumabay
author_sort Bekzhanov, Akzhan
collection PubMed
description The microbatteries field is an important direction of energy storage systems, requiring the careful miniaturization of existing materials while maintaining their properties. Over recent decades, LiCoO(2) has attracted considerable attention as cathode materials for lithium-ion batteries due to its promising electrochemical properties for high-performance batteries. In this work, the thin films of LiCoO(2) were obtained by radio-frequency magnetron sputtering of the corresponding target. In order to obtain the desired crystal structure, the parameters such as annealing time, temperature, and heating rate were varied and found to influence the rhombohedral phase formation. The electrochemical performances of the prepared thin films were examined as a function of annealing time, temperature, and heating rate. The LiCoO(2) thin film cathode annealed at 550 °C for 1 h 20 min demonstrated the best cycling performance with a discharge specific capacity of around 135 mAh g(−1) and volumetric capacity of 50 µAh cm(−2)µm(−1) with a 77% retention at 0.5 C rate.
format Online
Article
Text
id pubmed-9268197
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-92681972022-07-09 Annealing Optimization of Lithium Cobalt Oxide Thin Film for Use as a Cathode in Lithium-Ion Microbatteries Bekzhanov, Akzhan Uzakbaiuly, Berik Mukanova, Aliya Bakenov, Zhumabay Nanomaterials (Basel) Article The microbatteries field is an important direction of energy storage systems, requiring the careful miniaturization of existing materials while maintaining their properties. Over recent decades, LiCoO(2) has attracted considerable attention as cathode materials for lithium-ion batteries due to its promising electrochemical properties for high-performance batteries. In this work, the thin films of LiCoO(2) were obtained by radio-frequency magnetron sputtering of the corresponding target. In order to obtain the desired crystal structure, the parameters such as annealing time, temperature, and heating rate were varied and found to influence the rhombohedral phase formation. The electrochemical performances of the prepared thin films were examined as a function of annealing time, temperature, and heating rate. The LiCoO(2) thin film cathode annealed at 550 °C for 1 h 20 min demonstrated the best cycling performance with a discharge specific capacity of around 135 mAh g(−1) and volumetric capacity of 50 µAh cm(−2)µm(−1) with a 77% retention at 0.5 C rate. MDPI 2022-06-25 /pmc/articles/PMC9268197/ /pubmed/35808024 http://dx.doi.org/10.3390/nano12132188 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bekzhanov, Akzhan
Uzakbaiuly, Berik
Mukanova, Aliya
Bakenov, Zhumabay
Annealing Optimization of Lithium Cobalt Oxide Thin Film for Use as a Cathode in Lithium-Ion Microbatteries
title Annealing Optimization of Lithium Cobalt Oxide Thin Film for Use as a Cathode in Lithium-Ion Microbatteries
title_full Annealing Optimization of Lithium Cobalt Oxide Thin Film for Use as a Cathode in Lithium-Ion Microbatteries
title_fullStr Annealing Optimization of Lithium Cobalt Oxide Thin Film for Use as a Cathode in Lithium-Ion Microbatteries
title_full_unstemmed Annealing Optimization of Lithium Cobalt Oxide Thin Film for Use as a Cathode in Lithium-Ion Microbatteries
title_short Annealing Optimization of Lithium Cobalt Oxide Thin Film for Use as a Cathode in Lithium-Ion Microbatteries
title_sort annealing optimization of lithium cobalt oxide thin film for use as a cathode in lithium-ion microbatteries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268197/
https://www.ncbi.nlm.nih.gov/pubmed/35808024
http://dx.doi.org/10.3390/nano12132188
work_keys_str_mv AT bekzhanovakzhan annealingoptimizationoflithiumcobaltoxidethinfilmforuseasacathodeinlithiumionmicrobatteries
AT uzakbaiulyberik annealingoptimizationoflithiumcobaltoxidethinfilmforuseasacathodeinlithiumionmicrobatteries
AT mukanovaaliya annealingoptimizationoflithiumcobaltoxidethinfilmforuseasacathodeinlithiumionmicrobatteries
AT bakenovzhumabay annealingoptimizationoflithiumcobaltoxidethinfilmforuseasacathodeinlithiumionmicrobatteries