Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/132462
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Crystallographic-Site-Specific Structural Engineering Enables Extraordinary Electrochemical Performance of High-Voltage LiNi0.5Mn1.5O4 Spinel Cathodes for Lithium-Ion Batteries |
Other Titles: | Crystallographic-site-specific structural engineering enables extraordinary electrochemical performance of high-voltage LiNi(o).(5)Mn(1).(5) O(4) spinel cathodes for lithium-ion batteries |
Author: | Liang, G. Peterson, V.K. Wu, Z. Zhang, S. Hao, J. Lu, C.-Z. Chuang, C.-H. Lee, J.-F. Liu, J. Leniec, G. Kaczmarek, S.M. D’Angelo, A.M. Johannessen, B. Thomsen, L. Pang, W.K. Guo, Z. |
Citation: | Advanced Materials, 2021; 33(44) |
Publisher: | WILEY-V C H VERLAG GMBH |
Issue Date: | 2021 |
ISSN: | 0935-9648 1521-4095 |
Statement of Responsibility: | Gemeng Liang, Vanessa K. Peterson, Zhibin Wu, Shilin Zhang, Junnan Hao, Cheng-Zhang Lu ... et al. |
Abstract: | The development of reliable and safe high-energy-density lithium-ion batteries is hindered by the structural instability of cathode materials during cycling, arising as a result of detrimental phase transformations occurring at high operating voltages alongside the loss of active materials induced by transition metal dissolution. Originating from the fundamental structure/function relation of battery materials, the authors purposefully perform crystallographic-site-specific structural engineering on electrode material structure, using the high-voltage LiNi<sub>0.5</sub> Mn<sub>1.5</sub> O<sub>4</sub> (LNMO) cathode as a representative, which directly addresses the root source of structural instability of the Fd 3 ¯ m structure. By employing Sb as a dopant to modify the specific issue-involved 16c and 16d sites simultaneously, the authors successfully transform the detrimental two-phase reaction occurring at high-voltage into a preferential solid-solution reaction and significantly suppress the loss of Mn from the LNMO structure. The modified LNMO material delivers an impressive 99% of its theoretical specific capacity at 1 C, and maintains 87.6% and 72.4% of initial capacity after 1500 and 3000 cycles, respectively. The issue-tracing site-specific structural tailoring demonstrated for this material will facilitate the rapid development of high-energy-density materials for lithium-ion batteries. |
Keywords: | crystallographic-site-specific high-voltage spinel cathodes lithium-ion batteries structural engineering structure/function relation of materials |
Description: | First published: 04 September 2021 |
Rights: | © 2021 John Wiley & Sons, Inc. All rights reserved. |
DOI: | 10.1002/adma.202101413 |
Grant ID: | http://purl.org/au-research/grants/arc/FT160100251 http://purl.org/au-research/grants/arc/DP200101862 http://purl.org/au-research/grants/arc/DP210101486 http://purl.org/au-research/grants/arc/FT160100251 http://purl.org/au-research/grants/arc/DP200101862 |
Published version: | http://dx.doi.org/10.1002/adma.202101413 |
Appears in Collections: | 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.