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Showing 1–9 of 9 results
Advanced filters: Author: Sandrine Lyonnard Clear advanced filters

  • Ultrasound helps detect early Li-ion battery failures, but linking signals to specific phenomena is difficult. Here, authors combine ultrasound with operando X-ray diffraction and nanodilatometry to correlate ultrasound signals with structural changes in battery materials.

    • Corentin Renais
    • Benjamin Mercier-Guyon
    • Claire Villevieille
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-10

  • Although using proton (H+) conductors is attractive for energy applications, practical conductivity at intermediate temperatures (200–400 °C) remains a challenge. A K2NiF4-type Ba–Li oxyhydride is shown to exhibit a temperature-independent hydrogen conductivity of more than 0.01 S cm–1 above 315 °C.

    • Fumitaka Takeiri
    • Akihiro Watanabe
    • Genki Kobayashi
    Research
    Nature Materials
    Volume: 21, P: 325-330

  • Synchrotron techniques can probe battery materials and devices at unprecedented scales of time and space, providing in-depth mechanistic understanding. However, the lack of standardization in synchrotron measurements and analyses can lead to biased interpretations of data and results. Here, we propose possible strategies to address the reliability, representativeness and reproducibility issues of synchrotron characterizations in battery research.

    • Jakub Drnec
    • Sandrine Lyonnard
    Comments & Opinion
    Nature Nanotechnology
    Volume: 20, P: 584-587

  • Batteries equipped with sensors are promising to optimize usage and lifetime. Here, the authors show that an internal optical fiber induces delayed graphite reaction kinetics and conclude that a bulky intrusive sensor might measure a local disrupted behavior rather than the true battery state.

    • Annabel Olgo
    • Sylvie Genies
    • Sandrine Lyonnard
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-11

  • In a lithium-ion battery, anode prelithiation can compensate for the irreversible lithium loss occurring during formation cycles, yet developing an industrially viable method has posed a challenge. Now, a scalable roll-to-roll transfer-printing process is enabling the facile fabrication of anodes with controlled extra lithium, improving battery capacity.

    • Willy Porcher
    • Sandrine Lyonnard
    News & Views
    Nature Energy
    Volume: 8, P: 649-650

  • Semipermeable polymeric anion exchange membranes are essential for separation, filtration and energy conversion technologies such as fuel cells. Quasi-elastic neutron scattering is now used to disentangle water, polymer relaxation and OH− diffusional dynamics in a commercially available membrane.

    • Fabrizia Foglia
    • Quentin Berrod
    • Paul F. McMillan
    Research
    Nature Materials
    Volume: 21, P: 555-563

  • Alloy systems like Si/FeSi2 nano composites have great potential as stable anode materials in Li-ion batteries, but their characterization at different scales and throughout their ageing remains challenging. Here the authors use scattering and 2D/3D imaging techniques combined with modeling to elucidate morphology changes upon cycling of the anode.

    • Thomas Vorauer
    • Praveen Kumar
    • Roland Brunner
    ResearchOpen Access
    Communications Chemistry
    Volume: 3, P: 1-11