Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/130818
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Synchrotron X-Ray Absorption Spectroscopy and Electrochemical Study of Bi2O2Se Electrode for Lithium-/Potassium-Ion Storage |
Other Titles: | Synchrotron X-ray absorption spectroscopy and electrochemical study of Bi(2)O(2)Se electrode for lithium-/potassium-ion storage |
Author: | Wu, Z. Liang, G. Wu, J. Pang, W.K. Yang, F. Chen, L. Johannessen, B. Guo, Z. |
Citation: | Advanced Energy Materials, 2021; 11(17) |
Publisher: | Wiley |
Issue Date: | 2021 |
ISSN: | 1614-6832 1614-6840 |
Statement of Responsibility: | Zhibin Wu, Gemeng Liang, Jingxing Wu, Wei Kong Pang, Fuhua Yang, Libao Chen ... et al. |
Abstract: | <jats:title>Abstract</jats:title><jats:p>Elucidating the battery operating mechanism is important for designing better conversion‐type anodes as it determines the strategies used to improve electrochemical performances. Herein, the authors pioneered the electrochemical study of layered Bi<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>Se as anodes for lithium‐ion batteries (LIBs) and potassium‐ion batteries (PIBs). Surprisingly, the Bi<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>Se/graphite composite electrode shows even better cycle stability for PIBs. The electrochemical reaction mechanisms of the Bi<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>Se/graphite electrode for LIBs and PIBs are investigated by potential‐resolved in situ and ex situ X‐ray absorption spectroscopy based at the Bi L<jats:sub>III</jats:sub>‐edge and Se K‐edge through characterizing the local atomic structure evolution, valence state change, and charge transfer. New insights are gained regarding the electrochemical process of Se<jats:sup>2−</jats:sup> anions in Bi<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>Se, where multiple Li–Se intermediates rather than the traditional single‐phase Li<jats:sub>2</jats:sub>Se are involved in this conversion‐type anode. The advanced understanding of anionic electrochemistry in conversion‐type anodes prompts one to find appropriate ways to suppress side‐reactions and improve the battery performances.</jats:p> |
Rights: | © 2021 Wiley-VCH GmbH |
DOI: | 10.1002/aenm.202100185 |
Grant ID: | http://purl.org/au-research/grants/arc/DP210101486 http://purl.org/au-research/grants/arc/FT160100251 http://purl.org/au-research/grants/arc/DP170102406 |
Published version: | http://dx.doi.org/10.1002/aenm.202100185 |
Appears in Collections: | Aurora harvest 4 Chemistry and Physics 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.