2026-06-01T00:04:13Z https://icatplus.esrf.fr/oaipmh/request

oai:icatplus.esrf.fr:inv/2041038386 2025-06-04T16:12:02.981Z

4.2 EI 10.15151/ESRF-ES-2041038386 Oliver AYRE Oliver Ayre William CHEVREMONT William Chevremont 0009-0009-1252-5860 DMITRY KARPOV Dmitry Karpov 0000-0001-5095-7300 DMITRY KARPOV Dmitry Karpov 0000-0001-5095-7300 Tristan MANCHESTER Tristan Manchester 0000-0001-6689-7859 Tristan MANCHESTER Tristan Manchester 0000-0001-6689-7859 Johannes IHLI Johannes Ihli Johannes IHLI Johannes Ihli Johannes IHLI Johannes Ihli Zhao JIANG Zhao Jiang Fabio NUDELMAN Fabio Nudelman 0000-0001-7464-4309 Example Institute 2028 Data from large facility measurement 2025-04-08T06:00:00Z/2025-04-12T06:00:00Z 2025-04-12T06:00:00Z I CC-BY-4.0 The development of high-energy and low-cost cathode materials is one of the most pressing issues in solid-state and Li–ion battery research. Transition metal fluoride conversion-type cathodes, such as CuF2, are an attractive alternative to state-of-the-art intercalation cathodes in this context, offering a three- to five-fold higher theoretical capacity at lower cost and in the absence of scarce metals. Lithium diffusivity and electrolyte instability concerns, as well as a limited knowledge of the growing cathode solid electrolyte interphase (CEI), have so far prevented their more practical pursuit. Here, using ex-situ Ptychographic and XRF Nanotomography, we would like to investigate a nanostructured CuF2 composite cathode, utilized in a solid-state battery (SSB). Tomograms provide a 3D model of the cathode layer spatial arrangement, component connectivity, their evolution, alongside a first insight into the local CEI composition and how it determines battery performance.