Facile electrochemical synthesis of heterostructured amorphous-Sn@CuxO nanowire anode for Li-ion batteries with high stability and rate-performance.
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| Title: | Facile electrochemical synthesis of heterostructured amorphous-Sn@CuxO nanowire anode for Li-ion batteries with high stability and rate-performance. |
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| Authors: | Kim, Myeongho1 (AUTHOR), Choi, Insoo1 (AUTHOR) ischoi@kangwon.ac.kr, Kim, Jae Jeong1 (AUTHOR) jjkimm@snu.ac.kr |
| Source: | Applied Surface Science. Jun2019, Vol. 479, p225-233. 9p. |
| Subjects: | Lithium-ion batteries, Copper oxide, Anodes, Anodic oxidation of metals, Electric conductivity, Energy density, Construction materials |
| Abstract: | Abstract Herein, we fabricate heterostructured copper oxide nanowires decorated with amorphous Sn by Cu anodization and Sn electrodeposition for a potential application as anode in Li-ion battery. In general, Sn experiences a pulverization caused by the stress from a severe volume change during the reaction with Li-ion. Therefore, the stress should be certainly mitigated. A nanowire with 1-D structure could be a candidate anode material because it accommodates the volume change and enlarges the surface area of electrode. Yet Sn nanowire still suffers the harsh stress, copper oxide is employed as an active anode material as well as a structural framework in the present study. By virtue of the Li-conversion mechanism of copper oxide, the as-prepared Sn-decorated copper oxide nanowire exhibits an improved discharge capacity and maintains it as high as 633.0 mAh g−1 at extended cycles (77.7% of initial capacity at 150th cycle). From a rate capability experiment, the nanowire electrode presents the capacity of 424 mAh g−1 at 16 C, and shows a moderate recovering ability. The 1-D heterogeneous structure and Cu nodes that are intentionally formed during electrochemical fabrication helps realizing a cell configuration without a binder and a conducting agent, which ultimately contributes to increase energy and power density of Li-ion battery. Graphical abstract A hetero-structured a-Sn/Cu x O nanowires electrode that was electrochemically fabricated by Cu anodization and Sn electrodeposition possess a moderate discharge capacity and an excellent cycle retention. Unlabelled Image Highlights • Heterostructured a-Sn/Cu x O nanowire was fabricated electrochemically by Cu anodization. • 1-D nanowire and Cu nodes inside a-Sn/Cu x O increase the electrical conductivity. • The structure prevented nanoparticles from aggregating, maintaining the capacity. • a-Sn/Cu x O nanowire competed with others in discharge capacity and rate capability. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 135977865 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Facile electrochemical synthesis of heterostructured amorphous-Sn@CuxO nanowire anode for Li-ion batteries with high stability and rate-performance. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kim%2C+Myeongho%22">Kim, Myeongho</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Choi%2C+Insoo%22">Choi, Insoo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ischoi@kangwon.ac.kr</i><br /><searchLink fieldCode="AR" term="%22Kim%2C+Jae+Jeong%22">Kim, Jae Jeong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jjkimm@snu.ac.kr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Surface+Science%22">Applied Surface Science</searchLink>. Jun2019, Vol. 479, p225-233. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Lithium-ion+batteries%22">Lithium-ion batteries</searchLink><br /><searchLink fieldCode="DE" term="%22Copper+oxide%22">Copper oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Anodes%22">Anodes</searchLink><br /><searchLink fieldCode="DE" term="%22Anodic+oxidation+of+metals%22">Anodic oxidation of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+conductivity%22">Electric conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+density%22">Energy density</searchLink><br /><searchLink fieldCode="DE" term="%22Construction+materials%22">Construction materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract Herein, we fabricate heterostructured copper oxide nanowires decorated with amorphous Sn by Cu anodization and Sn electrodeposition for a potential application as anode in Li-ion battery. In general, Sn experiences a pulverization caused by the stress from a severe volume change during the reaction with Li-ion. Therefore, the stress should be certainly mitigated. A nanowire with 1-D structure could be a candidate anode material because it accommodates the volume change and enlarges the surface area of electrode. Yet Sn nanowire still suffers the harsh stress, copper oxide is employed as an active anode material as well as a structural framework in the present study. By virtue of the Li-conversion mechanism of copper oxide, the as-prepared Sn-decorated copper oxide nanowire exhibits an improved discharge capacity and maintains it as high as 633.0 mAh g−1 at extended cycles (77.7% of initial capacity at 150th cycle). From a rate capability experiment, the nanowire electrode presents the capacity of 424 mAh g−1 at 16 C, and shows a moderate recovering ability. The 1-D heterogeneous structure and Cu nodes that are intentionally formed during electrochemical fabrication helps realizing a cell configuration without a binder and a conducting agent, which ultimately contributes to increase energy and power density of Li-ion battery. Graphical abstract A hetero-structured a-Sn/Cu x O nanowires electrode that was electrochemically fabricated by Cu anodization and Sn electrodeposition possess a moderate discharge capacity and an excellent cycle retention. Unlabelled Image Highlights • Heterostructured a-Sn/Cu x O nanowire was fabricated electrochemically by Cu anodization. • 1-D nanowire and Cu nodes inside a-Sn/Cu x O increase the electrical conductivity. • The structure prevented nanoparticles from aggregating, maintaining the capacity. • a-Sn/Cu x O nanowire competed with others in discharge capacity and rate capability. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.apsusc.2019.02.081 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 225 Subjects: – SubjectFull: Lithium-ion batteries Type: general – SubjectFull: Copper oxide Type: general – SubjectFull: Anodes Type: general – SubjectFull: Anodic oxidation of metals Type: general – SubjectFull: Electric conductivity Type: general – SubjectFull: Energy density Type: general – SubjectFull: Construction materials Type: general Titles: – TitleFull: Facile electrochemical synthesis of heterostructured amorphous-Sn@CuxO nanowire anode for Li-ion batteries with high stability and rate-performance. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kim, Myeongho – PersonEntity: Name: NameFull: Choi, Insoo – PersonEntity: Name: NameFull: Kim, Jae Jeong IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 06 Text: Jun2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 01694332 Numbering: – Type: volume Value: 479 Titles: – TitleFull: Applied Surface Science Type: main |
| ResultId | 1 |
