Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/131948
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Gu, X. | - |
dc.contributor.author | Zhang, L. | - |
dc.contributor.author | Zhang, W. | - |
dc.contributor.author | Liu, S. | - |
dc.contributor.author | Wen, S. | - |
dc.contributor.author | Mao, X. | - |
dc.contributor.author | Dai, P. | - |
dc.contributor.author | Li, L. | - |
dc.contributor.author | Liu, D. | - |
dc.contributor.author | Zhao, X. | - |
dc.contributor.author | Guo, Z. | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Journal of Materials Chemistry A, 2021; 9(18):11397-11404 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.issn | 2050-7496 | - |
dc.identifier.uri | http://hdl.handle.net/2440/131948 | - |
dc.description.abstract | Conversion/alloying materials with high theoretical capacity are promising for potassium-ion batteries, although their development is seriously blocked owing to their volume expansion and ineffective solid-electrolyte interphase (SEI) protection. Herein, it is discovered that the performance of the CoSe anode material could be enhanced through a flexibly designed core–shell structure (denoted as CoSe–C@C) and an inorganic compound-rich SEI. The CoSe–C@C electrode exhibits stable cycling performance (432 mA h g⁻¹ at 200 mA g⁻¹ ) over 1000 cycles and outstanding rate capability (233 mA h g⁻¹ at 10 A g⁻¹ ). A reversible conversion mechanism for the potassiation/depotassiation in CoSe is revealed by ex situ X-ray diffraction patterns and high-resolution transmission electron microscope images, while the SEI on the CoSe–C@C surface is found to be inorganic-rich (KF-), which is favourable for K ion diffusion and charge transfer dynamics. These findings would shed light on nanostructure design strategies and our fundamental understanding of the SEI formation in electrolyte engineering for potassium-ion batteries. | - |
dc.description.statementofresponsibility | Xin Gu, Li Zhang, Wenchao Zhang, Sailin Liu, Sheng Wen, Xinning Mao, Pengcheng Dai, Liangjun Li, Dandan Liu, Xuebo Zhao and Zaiping Guo | - |
dc.language.iso | en | - |
dc.publisher | Royal Society of Chemistry | - |
dc.rights | This journal is © The Royal Society of Chemistry 2021 | - |
dc.source.uri | http://dx.doi.org/10.1039/d1ta01107c | - |
dc.title | A CoSe-C@C core-shell structure with stable potassium storage performance realized by an effective solid electrolyte interphase layer | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1039/d1ta01107c | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Liu, S. [0000-0003-0025-998X] | - |
dc.identifier.orcid | Guo, Z. [0000-0003-3464-5301] | - |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.