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Structural and Morphological Tuning of LiCoPO(4) Materials Synthesized by Solvo-Thermal Methods for Li-Cell Applications
Olivine-type lithium metal phosphates (LiMPO(4)) are promising cathode materials for lithium-ion batteries. LiFePO(4) (LFP) is commonly used in commercial Li-ion cells but the Fe(3+)/Fe(2+) couple can be usefully substituted with Mn(3+)/Mn(2+), Co(3+)/Co(2+), or Ni(3+)/Ni(2+), in order to obtain hig...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5304803/ https://www.ncbi.nlm.nih.gov/pubmed/28347117 http://dx.doi.org/10.3390/nano5042212 |
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author | Manzi, Jessica Curcio, Mariangela Brutti, Sergio |
author_facet | Manzi, Jessica Curcio, Mariangela Brutti, Sergio |
author_sort | Manzi, Jessica |
collection | PubMed |
description | Olivine-type lithium metal phosphates (LiMPO(4)) are promising cathode materials for lithium-ion batteries. LiFePO(4) (LFP) is commonly used in commercial Li-ion cells but the Fe(3+)/Fe(2+) couple can be usefully substituted with Mn(3+)/Mn(2+), Co(3+)/Co(2+), or Ni(3+)/Ni(2+), in order to obtain higher redox potentials. In this communication we report a systematic analysis of the synthesis condition of LiCoPO(4) (LCP) using a solvo-thermal route at low temperature, the latter being a valuable candidate to overcome the theoretical performances of LFP. In fact, LCP shows higher working potential (4.8 V vs. 3.6 V) compared to LFP and similar theoretical capacity (167 mAh·g(−1)). Our goal is to show the effect of the synthesis condition of the ability of LCP to reversibly cycle lithium in electrochemical cells. LCP samples have been prepared through a solvo-thermal method in aqueous-non aqueous solvent blends. Different Co(2+) salts have been used to study the effect of the anion on the crystal growth as well as the effect of solution acidity, temperature and reaction time. Materials properties have been characterized by Fast-Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopies. The correlation between structure/morphology and electrochemical performances has been investigated by galvanostatic charge-discharge cycles. |
format | Online Article Text |
id | pubmed-5304803 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-53048032017-03-21 Structural and Morphological Tuning of LiCoPO(4) Materials Synthesized by Solvo-Thermal Methods for Li-Cell Applications Manzi, Jessica Curcio, Mariangela Brutti, Sergio Nanomaterials (Basel) Article Olivine-type lithium metal phosphates (LiMPO(4)) are promising cathode materials for lithium-ion batteries. LiFePO(4) (LFP) is commonly used in commercial Li-ion cells but the Fe(3+)/Fe(2+) couple can be usefully substituted with Mn(3+)/Mn(2+), Co(3+)/Co(2+), or Ni(3+)/Ni(2+), in order to obtain higher redox potentials. In this communication we report a systematic analysis of the synthesis condition of LiCoPO(4) (LCP) using a solvo-thermal route at low temperature, the latter being a valuable candidate to overcome the theoretical performances of LFP. In fact, LCP shows higher working potential (4.8 V vs. 3.6 V) compared to LFP and similar theoretical capacity (167 mAh·g(−1)). Our goal is to show the effect of the synthesis condition of the ability of LCP to reversibly cycle lithium in electrochemical cells. LCP samples have been prepared through a solvo-thermal method in aqueous-non aqueous solvent blends. Different Co(2+) salts have been used to study the effect of the anion on the crystal growth as well as the effect of solution acidity, temperature and reaction time. Materials properties have been characterized by Fast-Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopies. The correlation between structure/morphology and electrochemical performances has been investigated by galvanostatic charge-discharge cycles. MDPI 2015-12-10 /pmc/articles/PMC5304803/ /pubmed/28347117 http://dx.doi.org/10.3390/nano5042212 Text en © 2015 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 license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Manzi, Jessica Curcio, Mariangela Brutti, Sergio Structural and Morphological Tuning of LiCoPO(4) Materials Synthesized by Solvo-Thermal Methods for Li-Cell Applications |
title | Structural and Morphological Tuning of LiCoPO(4) Materials Synthesized by Solvo-Thermal Methods for Li-Cell Applications |
title_full | Structural and Morphological Tuning of LiCoPO(4) Materials Synthesized by Solvo-Thermal Methods for Li-Cell Applications |
title_fullStr | Structural and Morphological Tuning of LiCoPO(4) Materials Synthesized by Solvo-Thermal Methods for Li-Cell Applications |
title_full_unstemmed | Structural and Morphological Tuning of LiCoPO(4) Materials Synthesized by Solvo-Thermal Methods for Li-Cell Applications |
title_short | Structural and Morphological Tuning of LiCoPO(4) Materials Synthesized by Solvo-Thermal Methods for Li-Cell Applications |
title_sort | structural and morphological tuning of licopo(4) materials synthesized by solvo-thermal methods for li-cell applications |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5304803/ https://www.ncbi.nlm.nih.gov/pubmed/28347117 http://dx.doi.org/10.3390/nano5042212 |
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