Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/94233
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | en_US |
dc.creator | Liu, W | en_US |
dc.creator | Xiang, P | en_US |
dc.creator | Dong, X | en_US |
dc.creator | Yin, H | en_US |
dc.creator | Yu, H | en_US |
dc.creator | Cheng, P | en_US |
dc.creator | Zhang, S | en_US |
dc.creator | Shi, S | en_US |
dc.date.accessioned | 2022-08-11T01:09:29Z | - |
dc.date.available | 2022-08-11T01:09:29Z | - |
dc.identifier.issn | 1359-8368 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/94233 | - |
dc.language.iso | en | en_US |
dc.publisher | Pergamon Press | en_US |
dc.rights | © 2021 Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Liu, W., et al. (2021). "Two advantages by a single move: Core-bishell electrode design for ultrahigh-rate capacity and ultralong-life cyclability of lithium ion batteries." Composites Part B: Engineering 216: 108883 is available at https://dx.doi.org/10.1016/j.compositesb.2021.108883. | en_US |
dc.subject | Core-bishell nanoporous structure | en_US |
dc.subject | Dealloying | en_US |
dc.subject | DFT calculations | en_US |
dc.subject | Lithium ion battery | en_US |
dc.subject | Ultrahigh-rate and ultralong-life anode | en_US |
dc.title | Two advantages by a single move : core-bishell electrode design for ultrahigh-rate capacity and ultralong-life cyclability of lithium ion batteries | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 216 | en_US |
dc.identifier.doi | 10.1016/j.compositesb.2021.108883 | en_US |
dcterms.abstract | Developing efficient electrodes with superior rate performance and superb cyclability are highly desired for meeting urgent demand of high-energy and large-rate lithium ion batteries (LIBs). Electrochemical performance of popular transition metal oxide electrodes is severely restricted by its inferior structure stability and low conductivity, leading to rapid capacity fade at high current density or deep cycling. Herein, a unique 3D core-bishell (3D-CBS) nanoporous electrode with configuration of Cu (NPC) core and bi-layered conformal Cu2O@PANI shells was dedicatedly designed and built by a novel and cost-effective approach combining chemical dealloying with controlled electro-polymerization. The 3D-CBS nanoporous electrodes deliver a large reversible capacity of 349 mAh g−1 at 6000 mA g−1 after 11500 ultralong-cycles with 76% capacity retention, corresponding to only 0.002% capacity fade per cycle. The superb cyclability is related to the unique 3D-CBS electrode design and in-situ formation of Cu2O with exposed most Cu+ (Cu+/O2− = 4/1) and low-energy (111) crystal plane (0.046 eV/Å2) on NPC matrix, as confirmed by physicochemical characterization and DFT calculation. Impressively, the 3D-CBS electrode displays superior rate capability with negligible capacity fade after 5 multistep-rate periods from 2 up to 20 A g−1 and back again to 2 A g−1 repeatedly (over 400 cycles), which is ascribed to the conformal coating of PANI as protective nanolayers with good conductivity on Cu2O, achieving ultrafast Li+ diffusivity (DLi = 2.42 × 10−10 cm2 s−1) and significantly improved electron conductivity (82000 S m−1). We believe that this work provides novel insights for design and synthesis of ultrahigh-rate and ultralong-life nanostructured anodes toward advanced LIBs. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Composites. Part B, Engineering, 1 July 2021, v. 216, 108883 | en_US |
dcterms.isPartOf | Composites. Part B, Engineering | en_US |
dcterms.issued | 2021-07-01 | - |
dc.identifier.scopus | 2-s2.0-85105697969 | - |
dc.identifier.eissn | 1879-1069 | en_US |
dc.identifier.artn | 108883 | en_US |
dc.description.validate | 202208 bchy | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0045 | - |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | the National Natural Science Foundation of China; the National Key Research and Development Program of China; the International S&T Innovation Cooperation Program of Sichuan Province; the Chengdu International S&T Cooperation Funded Project; the “1000 Talents Plan” of Sichuan Province; the Experimental Technology Project of Sichuan University; the Talent Introduction Program of Sichuan University | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 50335423 | - |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Shi_Two_Advantages_Single.pdf | Pre-Published version | 2.54 MB | Adobe PDF | View/Open |
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