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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
25/11/2020 |
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Data da última atualização: |
16/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WOLFF, M.; LOBE, S.; DELLEN, C.; UHLENBRUCK, S.; OLIVEIRA, C. R. de; GUICHARD, X. H.; NIEDERBERGER, M.; MAKVANDI, A.; PETERLECHNER, M.; WILDE, G.; FATTAKHOVA-ROHLFING, D.; GUILLON, O. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
A microwave-based one-pot process for homogeneous surface coating: improved electrochemical performance of Li(Ni1/3Mn1/3Co1/3)O2 with a nano-scaled ZnO:Al layer. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Nano Select, v. 2, n. 1, 2021. |
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Páginas: |
146-157 |
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DOI: |
10.1002/nano.202000079 |
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Idioma: |
Inglês |
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Conteúdo: |
In this article, a versatile process based on microwave-assisted sol–gel synthesis is introduced in order to apply a surface coating on cathode material for lithium-ion batteries. Here, a nano-scaled ZnO:Al (AZO) layer is coated homogeneously onto Li(Ni1/3Mn1/3Co1/3)O2 (NMC111) powder at temperatures below 210°C within a few minutes. In contrast to other wet-chemical coating techniques, the method described here is conducted in a one-pot reaction and does not require a post-annealing step at elevated temperatures. Investigations via high resolution transmission electron microscopy (HR-TEM), scanning transmission electron microscopy (STEM) and inductively-coupled plasma optical emission spectroscopy (ICP-OES) promote a thorough understanding of coating microstructure and quality in dependence of reaction temperature, duration and precursor concentration. The AZO protective coating on NMC111 significantly reduces capacity fading during cycling in the voltage range of 3.0-4.5 V. Furthermore, applying optimal quantities of the coating agent on NMC111 lead to enhanced specific capacities compared to the uncoated material. |
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Palavras-Chave: |
Cathode materials; Lithium-ion batteries; Microwave synthesis; Sol-gel method. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02117naa a2200325 a 4500
001 2127062
005 2022-08-16
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1002/nano.202000079$2DOI
100 1 $aWOLFF, M.
245 $aA microwave-based one-pot process for homogeneous surface coating$bimproved electrochemical performance of Li(Ni1/3Mn1/3Co1/3)O2 with a nano-scaled ZnO:Al layer.$h[electronic resource]
260 $c2021
300 $a146-157
520 $aIn this article, a versatile process based on microwave-assisted sol–gel synthesis is introduced in order to apply a surface coating on cathode material for lithium-ion batteries. Here, a nano-scaled ZnO:Al (AZO) layer is coated homogeneously onto Li(Ni1/3Mn1/3Co1/3)O2 (NMC111) powder at temperatures below 210°C within a few minutes. In contrast to other wet-chemical coating techniques, the method described here is conducted in a one-pot reaction and does not require a post-annealing step at elevated temperatures. Investigations via high resolution transmission electron microscopy (HR-TEM), scanning transmission electron microscopy (STEM) and inductively-coupled plasma optical emission spectroscopy (ICP-OES) promote a thorough understanding of coating microstructure and quality in dependence of reaction temperature, duration and precursor concentration. The AZO protective coating on NMC111 significantly reduces capacity fading during cycling in the voltage range of 3.0-4.5 V. Furthermore, applying optimal quantities of the coating agent on NMC111 lead to enhanced specific capacities compared to the uncoated material.
653 $aCathode materials
653 $aLithium-ion batteries
653 $aMicrowave synthesis
653 $aSol-gel method
700 1 $aLOBE, S.
700 1 $aDELLEN, C.
700 1 $aUHLENBRUCK, S.
700 1 $aOLIVEIRA, C. R. de
700 1 $aGUICHARD, X. H.
700 1 $aNIEDERBERGER, M.
700 1 $aMAKVANDI, A.
700 1 $aPETERLECHNER, M.
700 1 $aWILDE, G.
700 1 $aFATTAKHOVA-ROHLFING, D.
700 1 $aGUILLON, O.
773 $tNano Select$gv. 2, n. 1, 2021.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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