Transition-metal interdiffusion and solid electrolyte poisoning in all-solid-state batteries revealed by cryo-TEM
Zhang, Ruizhuo 1,2; Strauss, Florian 1,2; Jiang, Lin; Casalena, Lee; Li, Letian; Janek, Jürgen 1,2; Kondrakov, Aleksandr 1,2; Brezesinski, Torsten
1,2
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
2 Center for Electrochemical Energy Storage Ulm & Karlsruhe (CELEST), Karlsruher Institut für Technologie (KIT)
1,21 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
2 Center for Electrochemical Energy Storage Ulm & Karlsruhe (CELEST), Karlsruher Institut für Technologie (KIT)
Abstract:
Using scanning transmission electron microscopy, along with electron energy loss spectroscopy, under cryogenic conditions, we demonstrate transition-metal dissolution from a layered Ni-rich oxide cathode material and subsequent diffusion into the bulk of a lithium thiophosphate solid electrolyte during electrochemical cycling. This problem has previously only been considered for liquid-electrolyte-based batteries.
| Zugehörige Institution(en) am KIT | Center for Electrochemical Energy Storage Ulm & Karlsruhe (CELEST) Institut für Nanotechnologie (INT) |
| Publikationstyp | Zeitschriftenaufsatz |
| Publikationsdatum | 13.04.2023 |
| Sprache | Englisch |
| Identifikator | ISSN: 1359-7345, 1364-548X KITopen-ID: 1000160898 |
| HGF-Programm | 38.02.01 (POF IV, LK 01) Fundamentals and Materials |
| Erschienen in | Chemical Communications |
| Verlag | Royal Society of Chemistry (RSC) |
| Band | 59 |
| Heft | 31 |
| Seiten | 4600–4603 |
| Vorab online veröffentlicht am | 10.03.2023 |
| Nachgewiesen in | Dimensions Web of Science Scopus |