Propagation topography of redox phase transformations in heterogeneous layered oxide cathode materials
Abstract
© 2018 The Author(s). Redox phase transformations are relevant to a number of metrics pertaining to the electrochemical performance of batteries. These phase transformations deviate from and are more complicated than the conventional theory of phase nucleation and propagation, owing to simultaneous changes of cationic and anionic valence states as well as the polycrystalline nature of battery materials. Herein, we propose an integrative approach of mapping valence states and constructing chemical topographies to investigate the redox phase transformation in polycrystalline layered oxide cathode materials under thermal abuse conditions. We discover that, in addition to the three-dimensional heterogeneous phase transformation, there is a mesoscale evolution of local valence curvatures in valence state topographies. The relative probability of negative and positive local valence curvatures alternates during the layered-to-spinel/rocksalt phase transformation. The implementation of our method can potentially provide a universal approach to study phase transformation behaviors in battery materials and beyond.
- Authors:
-
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Chinese Academy of Sciences (CAS), Beijing (China)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Stanford Univ., Stanford, CA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1463350
- Alternate Identifier(s):
- OSTI ID: 1478360
- Grant/Contract Number:
- AC02-76SF00515; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE
Citation Formats
Mu, Linqin, Yuan, Qingxi, Tian, Chixia, Wei, Chenxi, Zhang, Kai, Liu, Jin, Pianetta, Piero, Doeff, Marca M., Liu, Yijin, and Lin, Feng. Propagation topography of redox phase transformations in heterogeneous layered oxide cathode materials. United States: N. p., 2018.
Web. doi:10.1038/s41467-018-05172-x.
Mu, Linqin, Yuan, Qingxi, Tian, Chixia, Wei, Chenxi, Zhang, Kai, Liu, Jin, Pianetta, Piero, Doeff, Marca M., Liu, Yijin, & Lin, Feng. Propagation topography of redox phase transformations in heterogeneous layered oxide cathode materials. United States. https://doi.org/10.1038/s41467-018-05172-x
Mu, Linqin, Yuan, Qingxi, Tian, Chixia, Wei, Chenxi, Zhang, Kai, Liu, Jin, Pianetta, Piero, Doeff, Marca M., Liu, Yijin, and Lin, Feng. Wed .
"Propagation topography of redox phase transformations in heterogeneous layered oxide cathode materials". United States. https://doi.org/10.1038/s41467-018-05172-x. https://www.osti.gov/servlets/purl/1463350.
@article{osti_1463350,
title = {Propagation topography of redox phase transformations in heterogeneous layered oxide cathode materials},
author = {Mu, Linqin and Yuan, Qingxi and Tian, Chixia and Wei, Chenxi and Zhang, Kai and Liu, Jin and Pianetta, Piero and Doeff, Marca M. and Liu, Yijin and Lin, Feng},
abstractNote = {© 2018 The Author(s). Redox phase transformations are relevant to a number of metrics pertaining to the electrochemical performance of batteries. These phase transformations deviate from and are more complicated than the conventional theory of phase nucleation and propagation, owing to simultaneous changes of cationic and anionic valence states as well as the polycrystalline nature of battery materials. Herein, we propose an integrative approach of mapping valence states and constructing chemical topographies to investigate the redox phase transformation in polycrystalline layered oxide cathode materials under thermal abuse conditions. We discover that, in addition to the three-dimensional heterogeneous phase transformation, there is a mesoscale evolution of local valence curvatures in valence state topographies. The relative probability of negative and positive local valence curvatures alternates during the layered-to-spinel/rocksalt phase transformation. The implementation of our method can potentially provide a universal approach to study phase transformation behaviors in battery materials and beyond.},
doi = {10.1038/s41467-018-05172-x},
journal = {Nature Communications},
number = 1,
volume = 9,
place = {United States},
year = {Wed Jul 18 00:00:00 EDT 2018},
month = {Wed Jul 18 00:00:00 EDT 2018}
}
Web of Science
Figures / Tables:
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Works referencing / citing this record:
Deciphering the Cathode-Electrolyte Interfacial Chemistry in Sodium Layered Cathode Materials
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