<i>Operando</i> single-particle imaging reveals that asymmetric ion flux contributes to capacity degradation in aged Ni-rich layered cathodes
Using an operando optical scattering technique, we identify markedly asymmetric Li-ion flux in aged single crystalline NMC cathodes, primarily caused by an uneven growth of rocksalt phase across the particle surface.
Authors
- Caterina Ducati (ORCID: https://orcid.org/0000-0003-3366-6442)
- Zhengyan Lun (ORCID: https://orcid.org/0000-0002-0186-6864)
- Amoghavarsha Mahadevegowda (ORCID: https://orcid.org/0000-0001-5683-5638)
- Christoph Schnedermann (ORCID: https://orcid.org/0000-0002-2841-8586)
- Alice J. Merryweather (ORCID: https://orcid.org/0000-0002-9386-1760)
- V.S. Deshpande (ORCID: https://orcid.org/0000-0003-3899-3573)
- Shrinidhi S. Pandurangi (ORCID: https://orcid.org/0000-0002-9755-4303)
- Simon M. Fairclough (ORCID: https://orcid.org/0000-0003-3781-8212)
- N.A. Fleck (ORCID: https://orcid.org/0000-0003-0224-1804)
- Akshay Rao (ORCID: https://orcid.org/0000-0003-4261-0766)
- Clare P. Grey (ORCID: https://orcid.org/0000-0001-5572-192X)
- Chao Xu (ORCID: https://orcid.org/0009-0009-7672-6039)
Institutions
- Maxwell Technologies (United States) (US)
- University of Cambridge (GB)
- ShanghaiTech University (CN)
- The Faraday Institution (GB)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Energy & Environmental Science
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5ee00267b
- Citations
- 16
- Primary Topic
- Electron and X-Ray Spectroscopy Techniques
- Type
- article
- Field-Weighted Citation Impact
- 10.58
Funders
- Diamond Light Source
- Engineering and Physical Sciences Research Council
- Newnham College, University of Cambridge