Cargando…

Surfactant-Assisted Synthesis of Micro/Nano-Structured LiFePO(4) Electrode Materials with Improved Electrochemical Performance

As an electrode material, LiFePO(4) has been extensively studied in the field of energy conversion and storage due to its inexpensive cost and excellent safety, as well as good cycling stability. However, it remains a challenge to obtain LiFePO(4) electrode materials with acceptable discharge capaci...

Descripción completa

Detalles Bibliográficos
Autores principales: Qiao, Yuqing, Liu, Ying, Zhu, Jianguo, Jia, Peng, Zhang, Liqiao, Zhou, Wei, Jiao, Tifeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9782772/
https://www.ncbi.nlm.nih.gov/pubmed/36556757
http://dx.doi.org/10.3390/ma15248953
_version_ 1784857418291740672
author Qiao, Yuqing
Liu, Ying
Zhu, Jianguo
Jia, Peng
Zhang, Liqiao
Zhou, Wei
Jiao, Tifeng
author_facet Qiao, Yuqing
Liu, Ying
Zhu, Jianguo
Jia, Peng
Zhang, Liqiao
Zhou, Wei
Jiao, Tifeng
author_sort Qiao, Yuqing
collection PubMed
description As an electrode material, LiFePO(4) has been extensively studied in the field of energy conversion and storage due to its inexpensive cost and excellent safety, as well as good cycling stability. However, it remains a challenge to obtain LiFePO(4) electrode materials with acceptable discharge capacity at low temperature. Here, micro/nano-structured LiFePO(4) electrode materials with grape-like morphology were fabricated via a facile solvothermal approach using ethanol and OA as the co-solvent, the surfactant as well as the carbon source. The structure and electrochemical properties of the LiFePO(4) material were investigated with x-ray diffraction (XRD), field emission scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), and the formation mechanism of the self-assembled micro/nano-structured LiFePO(4) was discussed as well. The micro/nano-structured LiFePO(4) electrode materials exhibited a high discharge capacity (142 mAh·g(−1)) at a low temperature of 0 °C, and retained 102 mAh·g(−1) when the temperature was decreased to −20 °C. This investigation can provide a reference for the design of micro/nano-structured electrode materials with improvement of the electrochemical performance at low temperature.
format Online
Article
Text
id pubmed-9782772
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-97827722022-12-24 Surfactant-Assisted Synthesis of Micro/Nano-Structured LiFePO(4) Electrode Materials with Improved Electrochemical Performance Qiao, Yuqing Liu, Ying Zhu, Jianguo Jia, Peng Zhang, Liqiao Zhou, Wei Jiao, Tifeng Materials (Basel) Article As an electrode material, LiFePO(4) has been extensively studied in the field of energy conversion and storage due to its inexpensive cost and excellent safety, as well as good cycling stability. However, it remains a challenge to obtain LiFePO(4) electrode materials with acceptable discharge capacity at low temperature. Here, micro/nano-structured LiFePO(4) electrode materials with grape-like morphology were fabricated via a facile solvothermal approach using ethanol and OA as the co-solvent, the surfactant as well as the carbon source. The structure and electrochemical properties of the LiFePO(4) material were investigated with x-ray diffraction (XRD), field emission scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), and the formation mechanism of the self-assembled micro/nano-structured LiFePO(4) was discussed as well. The micro/nano-structured LiFePO(4) electrode materials exhibited a high discharge capacity (142 mAh·g(−1)) at a low temperature of 0 °C, and retained 102 mAh·g(−1) when the temperature was decreased to −20 °C. This investigation can provide a reference for the design of micro/nano-structured electrode materials with improvement of the electrochemical performance at low temperature. MDPI 2022-12-14 /pmc/articles/PMC9782772/ /pubmed/36556757 http://dx.doi.org/10.3390/ma15248953 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
Qiao, Yuqing
Liu, Ying
Zhu, Jianguo
Jia, Peng
Zhang, Liqiao
Zhou, Wei
Jiao, Tifeng
Surfactant-Assisted Synthesis of Micro/Nano-Structured LiFePO(4) Electrode Materials with Improved Electrochemical Performance
title Surfactant-Assisted Synthesis of Micro/Nano-Structured LiFePO(4) Electrode Materials with Improved Electrochemical Performance
title_full Surfactant-Assisted Synthesis of Micro/Nano-Structured LiFePO(4) Electrode Materials with Improved Electrochemical Performance
title_fullStr Surfactant-Assisted Synthesis of Micro/Nano-Structured LiFePO(4) Electrode Materials with Improved Electrochemical Performance
title_full_unstemmed Surfactant-Assisted Synthesis of Micro/Nano-Structured LiFePO(4) Electrode Materials with Improved Electrochemical Performance
title_short Surfactant-Assisted Synthesis of Micro/Nano-Structured LiFePO(4) Electrode Materials with Improved Electrochemical Performance
title_sort surfactant-assisted synthesis of micro/nano-structured lifepo(4) electrode materials with improved electrochemical performance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9782772/
https://www.ncbi.nlm.nih.gov/pubmed/36556757
http://dx.doi.org/10.3390/ma15248953
work_keys_str_mv AT qiaoyuqing surfactantassistedsynthesisofmicronanostructuredlifepo4electrodematerialswithimprovedelectrochemicalperformance
AT liuying surfactantassistedsynthesisofmicronanostructuredlifepo4electrodematerialswithimprovedelectrochemicalperformance
AT zhujianguo surfactantassistedsynthesisofmicronanostructuredlifepo4electrodematerialswithimprovedelectrochemicalperformance
AT jiapeng surfactantassistedsynthesisofmicronanostructuredlifepo4electrodematerialswithimprovedelectrochemicalperformance
AT zhangliqiao surfactantassistedsynthesisofmicronanostructuredlifepo4electrodematerialswithimprovedelectrochemicalperformance
AT zhouwei surfactantassistedsynthesisofmicronanostructuredlifepo4electrodematerialswithimprovedelectrochemicalperformance
AT jiaotifeng surfactantassistedsynthesisofmicronanostructuredlifepo4electrodematerialswithimprovedelectrochemicalperformance