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Research Highlight | Center for Nanoscale Materials

Halide segregation boosts all-solid-state lithium-chalcogen batteries

In a study published in Science, researchers discovered a halide segregation mechanism in lithium-chalcogen batteries, enhancing ion transport and stability, improving efficiency and cost-effectiveness.

Scientific Achievement

Researchers discovered a universal halide segregation mechanism at the interfaces of all-solid-state lithium-chalcogen batteries that enhances ion transport and stabilizes the cathode structure, significantly boosting battery performance.

Significance and Impact

This mechanism can enhance the design and manufacturing of all-solid-state lithium-chalcogen batteries, making them more efficient and cost-effective by improving charge transport and mechanical stability.

Research Details

  • At the CNM, halide segregated interfacial layer between cathode and solid electrolyte was characterized by low dose cryo-TEM.
  • Elemental distribution analysis done at CNM with EDS, EELS.
  • Thermal stability study with in-situ annealing.

DOI: 10.1126/science.adt1882

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The Center for Nanoscale Materials is one of the five DOE Nanoscale Science Research Centers, premier national user facilities for interdisciplinary research at the nanoscale supported by the DOE Office of Science. Together the NSRCs comprise a suite of complementary facilities that provide researchers with state-of-the-art capabilities to fabricate, process, characterize and model nanoscale materials, and constitute the largest infrastructure investment of the National Nanotechnology Initiative. The NSRCs are located at DOE’s Argonne, Brookhaven, Lawrence Berkeley, Oak Ridge, Sandia and Los Alamos National Laboratories. For more information about the DOE NSRCs, please visit https://​sci​ence​.osti​.gov/​U​s​e​r​-​F​a​c​i​l​i​t​i​e​s​/​U​s​e​r​-​F​a​c​i​l​i​t​i​e​s​-​a​t​-​a​-​G​lance.

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