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Showing 1–9 of 9 results
Advanced filters: Author: Piero Pianetta Clear advanced filters

  • The battery performance at the cell level is an integration of contributions from many active particles. Here, the authors present a direct visualization of the active cathode particles that react heterogeneously and asynchronously by using coherent multi-crystal diffraction and optical microscopy.

    • Zhichen Xue
    • Nikhil Sharma
    • Yijin Liu
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • The lattice strain and defects in layered oxides is critical to the intercalation chemistry and battery performance. Here, the authors demonstrate a thermal-healing of lattice defects in single-crystalline cathodes caused by the thermal-induced release of lattice strain and the structure ordering.

    • Shaofeng Li
    • Guannan Qian
    • Yijin Liu
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-10

  • Lithium-rich layered material deserves in-depth understanding because it has large capacity enabled by both cation and anion activities. Here, authors apply 3D spectro-tomography with nano resolution to reveal the multi-layer morphology and depth-dependent transition metal valence distribution associated with oxygen redox.

    • Jin Zhang
    • Qinchao Wang
    • Yijin Liu
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • Here the authors demonstrate a spectroscopic and imaging approach to study redox solid-state phase transformation in lithium ion cathode materials under thermal abuse conditions. The valence curvature of the propagation front alternates as a result of local chemical and structural heterogeneities.

    • Linqin Mu
    • Qingxi Yuan
    • Feng Lin
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • The interplay of surface chemistry and bulk microstructure in layered oxides is critical to battery performance. Here, the authors demonstrate a comprehensive understanding of such a reaction mechanism within an individual cathode particle using integrated synchrotron imaging methods.

    • Shaofeng Li
    • Zhisen Jiang
    • Yijin Liu
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-9

  • The conversion of solar energy into electricity usually occurs either electrically or through thermal conversion. A new mechanism, photon-enhanced thermionic emission, which combines electric as well as thermal conversion mechanisms, is now shown to lead to enhanced conversion efficiencies that potentially could even exceed the theoretical limits of conventional photovoltaic cells.

    • Jared W. Schwede
    • Igor Bargatin
    • Nicholas A. Melosh
    Research
    Nature Materials
    Volume: 9, P: 762-767

  • Integrated approaches with advanced machine learning techniques are becoming necessary to take full advantage of the advanced experimental capabilities of next-generation synchrotrons. Yijin Liu and colleagues discuss the emergence of synergistic machine-and-data intelligence in synchrotron technology, and how it may accelerate scientific discovery.

    • Jizhou Li
    • Xiaobiao Huang
    • Yijin Liu
    Comments & Opinion
    Nature Reviews Physics
    Volume: 3, P: 766-768