Effects of ultrasound irradiation on Au nanoparticles deposition on carbon-coated LiNi0.5Mn1.5O4 and its performance as a cathode material for Li ion batteries
LiNi0.5Mn1.5O4 (LMNO) has attracted considerable attention as a Li-ion battery cathode material, owing to its high discharge voltage of 4.7 V (vs. Li/Li+) and high energy density. However, the electronic conductivity of LMNO is low, resulting in a low discharge capacity at high current density. To o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Ultrasonics Sonochemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417721004211 |
| _version_ | 1798024706527330304 |
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| author | Yasuyuki Tanaka Hirokazu Okawa Takahiro Kato Katsuyasu Sugawara |
| author_facet | Yasuyuki Tanaka Hirokazu Okawa Takahiro Kato Katsuyasu Sugawara |
| author_sort | Yasuyuki Tanaka |
| collection | DOAJ |
| description | LiNi0.5Mn1.5O4 (LMNO) has attracted considerable attention as a Li-ion battery cathode material, owing to its high discharge voltage of 4.7 V (vs. Li/Li+) and high energy density. However, the electronic conductivity of LMNO is low, resulting in a low discharge capacity at high current density. To overcome this limitation, we deposited Au nanoparticles (NPs), which have a high conductivity and chemical stability at high battery voltages, on carbon-coated LMNO (LMNO/C) using ultrasound irradiation. Consequently, Au NPs that are ∼16 nm in size were deposited on LMNO/C, and ultrasound irradiation was reported to disperse the NPs on LMNO/C more effectively than stirring. Furthermore, the deposition of Au NPs on LMNO/C using ultrasound irradiation improved its electronic conductivity, which is related to an increase in the discharge capacity due to the reduction of Ni4+ to Ni2+ in LMNO/C at a high current density. |
| first_indexed | 2024-04-11T18:06:54Z |
| format | Article |
| id | doaj.art-dd0ff71eb0b94f2ca47e87ff3ffa518d |
| institution | Directory Open Access Journal |
| issn | 1350-4177 |
| language | English |
| last_indexed | 2024-04-11T18:06:54Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj.art-dd0ff71eb0b94f2ca47e87ff3ffa518d2022-12-22T04:10:19ZengElsevierUltrasonics Sonochemistry1350-41772022-01-0182105879Effects of ultrasound irradiation on Au nanoparticles deposition on carbon-coated LiNi0.5Mn1.5O4 and its performance as a cathode material for Li ion batteriesYasuyuki Tanaka0Hirokazu Okawa1Takahiro Kato2Katsuyasu Sugawara3Graduate School of Engineering Science, Akita University, 1-1 Tegatagakuen-machi, Akita, Akita 010-8502, JapanCorresponding author.; Graduate School of Engineering Science, Akita University, 1-1 Tegatagakuen-machi, Akita, Akita 010-8502, JapanGraduate School of Engineering Science, Akita University, 1-1 Tegatagakuen-machi, Akita, Akita 010-8502, JapanGraduate School of Engineering Science, Akita University, 1-1 Tegatagakuen-machi, Akita, Akita 010-8502, JapanLiNi0.5Mn1.5O4 (LMNO) has attracted considerable attention as a Li-ion battery cathode material, owing to its high discharge voltage of 4.7 V (vs. Li/Li+) and high energy density. However, the electronic conductivity of LMNO is low, resulting in a low discharge capacity at high current density. To overcome this limitation, we deposited Au nanoparticles (NPs), which have a high conductivity and chemical stability at high battery voltages, on carbon-coated LMNO (LMNO/C) using ultrasound irradiation. Consequently, Au NPs that are ∼16 nm in size were deposited on LMNO/C, and ultrasound irradiation was reported to disperse the NPs on LMNO/C more effectively than stirring. Furthermore, the deposition of Au NPs on LMNO/C using ultrasound irradiation improved its electronic conductivity, which is related to an increase in the discharge capacity due to the reduction of Ni4+ to Ni2+ in LMNO/C at a high current density.http://www.sciencedirect.com/science/article/pii/S1350417721004211Sonochemical synthesisAu nanoparticlesLiNi0.5Mn1.5O4Carbon coatingLi-ion battery |
| spellingShingle | Yasuyuki Tanaka Hirokazu Okawa Takahiro Kato Katsuyasu Sugawara Effects of ultrasound irradiation on Au nanoparticles deposition on carbon-coated LiNi0.5Mn1.5O4 and its performance as a cathode material for Li ion batteries Ultrasonics Sonochemistry Sonochemical synthesis Au nanoparticles LiNi0.5Mn1.5O4 Carbon coating Li-ion battery |
| title | Effects of ultrasound irradiation on Au nanoparticles deposition on carbon-coated LiNi0.5Mn1.5O4 and its performance as a cathode material for Li ion batteries |
| title_full | Effects of ultrasound irradiation on Au nanoparticles deposition on carbon-coated LiNi0.5Mn1.5O4 and its performance as a cathode material for Li ion batteries |
| title_fullStr | Effects of ultrasound irradiation on Au nanoparticles deposition on carbon-coated LiNi0.5Mn1.5O4 and its performance as a cathode material for Li ion batteries |
| title_full_unstemmed | Effects of ultrasound irradiation on Au nanoparticles deposition on carbon-coated LiNi0.5Mn1.5O4 and its performance as a cathode material for Li ion batteries |
| title_short | Effects of ultrasound irradiation on Au nanoparticles deposition on carbon-coated LiNi0.5Mn1.5O4 and its performance as a cathode material for Li ion batteries |
| title_sort | effects of ultrasound irradiation on au nanoparticles deposition on carbon coated lini0 5mn1 5o4 and its performance as a cathode material for li ion batteries |
| topic | Sonochemical synthesis Au nanoparticles LiNi0.5Mn1.5O4 Carbon coating Li-ion battery |
| url | http://www.sciencedirect.com/science/article/pii/S1350417721004211 |
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