Enhanced electrochemical performances of LiNi0.5Mn1.5O4 by surface modification with Cu nanoparticles
5V spinel LiNi0.5Mn1.5O4 cathode is prepared by traditional solid-state method and nano-Cu particles were derived from a chemical reduction process. The effect of Cu-coating on the electrochemical performances of LiNi0.5Mn1.5O4 cells, in a wide operation temperature range (-10°C, 25°C, 60°C...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Technical Faculty, Bor
2017-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391600021Z.pdf |
| _version_ | 1811242798141145088 |
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| author | Zhao G. Lin Y. Zhu W. Yang W. Huang Z. |
| author_facet | Zhao G. Lin Y. Zhu W. Yang W. Huang Z. |
| author_sort | Zhao G. |
| collection | DOAJ |
| description | 5V spinel LiNi0.5Mn1.5O4 cathode is prepared by traditional solid-state
method and nano-Cu particles were derived from a chemical reduction process.
The effect of Cu-coating on the electrochemical performances of
LiNi0.5Mn1.5O4 cells, in a wide operation temperature range (-10°C, 25°C, 60°C),
is investigated systematically by the charge/discharge testing, cyclic
voltammograms and impedance spectroscopy, respectively. The results
demonstrate that the modified material exhibits remarkably enhanced
electrochemical reversibility and stability. Cu-coated material has much
lower surface and charge transfer resistances and shows a higher lithium
diffusion rate. The Cu coating layer as a highly efficient lithium ion
conductor, acted as a highly efficient protector to restrain the contact
loss. |
| first_indexed | 2024-04-12T13:56:24Z |
| format | Article |
| id | doaj.art-e96543cd9eb240cd97c1682f3142634c |
| institution | Directory Open Access Journal |
| issn | 1450-5339 2217-7175 |
| language | English |
| last_indexed | 2024-04-12T13:56:24Z |
| publishDate | 2017-01-01 |
| publisher | Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj.art-e96543cd9eb240cd97c1682f3142634c2022-12-22T03:30:21ZengTechnical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752017-01-01531616610.2298/JMMB150906021Z1450-53391600021ZEnhanced electrochemical performances of LiNi0.5Mn1.5O4 by surface modification with Cu nanoparticlesZhao G.0Lin Y.1Zhu W.2Yang W.3Huang Z.4Fujian Normal University, College of Physics and Energy, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, China + Fujian Provincial Collaborative Innovation Center for OptoelectronicFujian Normal University, College of Physics and Energy, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, China + Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient DFujian Normal University, College of Physics and Energy, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, China + Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient DFujian Normal University, College of Physics and Energy, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, China + Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient DFujian Normal University, College of Physics and Energy, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, China + Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient D5V spinel LiNi0.5Mn1.5O4 cathode is prepared by traditional solid-state method and nano-Cu particles were derived from a chemical reduction process. The effect of Cu-coating on the electrochemical performances of LiNi0.5Mn1.5O4 cells, in a wide operation temperature range (-10°C, 25°C, 60°C), is investigated systematically by the charge/discharge testing, cyclic voltammograms and impedance spectroscopy, respectively. The results demonstrate that the modified material exhibits remarkably enhanced electrochemical reversibility and stability. Cu-coated material has much lower surface and charge transfer resistances and shows a higher lithium diffusion rate. The Cu coating layer as a highly efficient lithium ion conductor, acted as a highly efficient protector to restrain the contact loss.http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391600021Z.pdfLithium-ion batteryCathodeSurface modificationLiNi0.5Mn1.5O4 |
| spellingShingle | Zhao G. Lin Y. Zhu W. Yang W. Huang Z. Enhanced electrochemical performances of LiNi0.5Mn1.5O4 by surface modification with Cu nanoparticles Journal of Mining and Metallurgy. Section B: Metallurgy Lithium-ion battery Cathode Surface modification LiNi0.5Mn1.5O4 |
| title | Enhanced electrochemical performances of LiNi0.5Mn1.5O4 by surface modification with Cu nanoparticles |
| title_full | Enhanced electrochemical performances of LiNi0.5Mn1.5O4 by surface modification with Cu nanoparticles |
| title_fullStr | Enhanced electrochemical performances of LiNi0.5Mn1.5O4 by surface modification with Cu nanoparticles |
| title_full_unstemmed | Enhanced electrochemical performances of LiNi0.5Mn1.5O4 by surface modification with Cu nanoparticles |
| title_short | Enhanced electrochemical performances of LiNi0.5Mn1.5O4 by surface modification with Cu nanoparticles |
| title_sort | enhanced electrochemical performances of lini0 5mn1 5o4 by surface modification with cu nanoparticles |
| topic | Lithium-ion battery Cathode Surface modification LiNi0.5Mn1.5O4 |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391600021Z.pdf |
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