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![Miaofeng Chi in her lab Miaofeng Chi in her lab](/sites/default/files/styles/list_page_thumbnail/public/news/images/miaofengchi_lab200.jpeg?itok=qpQu_bEe)
![An ORNL-led research team found the key to fast ion conduction in a solid electrolyte. Tiny features maximize ion transport pathways, represented by red and green. Image credit: Oak Ridge National Laboratory, U.S. Dept. of Energy An ORNL-led research team found the key to fast ion conduction in a solid electrolyte. Tiny features maximize ion transport pathways, represented by red and green. Image credit: Oak Ridge National Laboratory, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/news/images/LLTO%20AEM%20figure.jpg?itok=NWIp-9aa)
In a rechargeable battery, the electrolyte transports lithium ions from the negative to the positive electrode during discharging. The path of ionic flow reverses during recharging.
![Light drives the migration of charge carriers (electrons and holes) at the juncture between semiconductors with mismatched crystal lattices. These heterostructures hold promise for advancing optoelectronics and exploring new physics. Light drives the migration of charge carriers (electrons and holes) at the juncture between semiconductors with mismatched crystal lattices. These heterostructures hold promise for advancing optoelectronics and exploring new physics.](/sites/default/files/styles/list_page_thumbnail/public/news/images/from%20Andy_%20Highlight%20figure%20rev1-xf%20%28resized%29.jpg?itok=pweAjHEE)
Epitaxy, or growing crystalline film layers that are templated by a crystalline substrate, is a mainstay of manufacturing transistors and semiconductors.
![Oak Ridge National Laboratory scientists combined imaging techniques to measure crystallization kinetics of perovskite films following exposure to a mixed halide vapor. Oak Ridge National Laboratory scientists combined imaging techniques to measure crystallization kinetics of perovskite films following exposure to a mixed halide vapor.](/sites/default/files/styles/list_page_thumbnail/public/Perovskite_jacs.jpg?itok=DbSk7_d5)
Researchers at the Department of Energy’s Oak Ridge National Laboratory have found a potential path to further improve solar cell efficiency by understanding the competition among halogen atoms during the synthesis of sunlight-absorbing crystals.
![Researchers used electron microscopy aberrations to create a new method for spectroscopy with atomic-level resolution. Researchers used electron microscopy aberrations to create a new method for spectroscopy with atomic-level resolution.](/sites/default/files/styles/list_page_thumbnail/public/02%20nanoscience%20tip.jpg?itok=st4odjYx)
![ORNL’s tough new plastic is made with 50 percent renewable content from biomass. Image credit: Oak Ridge National Laboratory, U.S. Dept. of Energy; conceptual art by Mark Robbins ORNL’s tough new plastic is made with 50 percent renewable content from biomass. Image credit: Oak Ridge National Laboratory, U.S. Dept. of Energy; conceptual art by Mark Robbins](/sites/default/files/styles/list_page_thumbnail/public/news/images/16-G00184_VerB.jpg?itok=YJlqzCc1)
![Default image of ORNL entry sign](/sites/default/files/styles/list_page_thumbnail/public/2023-09/default-thumbnail.jpg?h=553c93cc&itok=N_Kd1DVR)
![polarization image polarization image](/sites/default/files/styles/list_page_thumbnail/public/polarization_image.jpg?itok=ad3gyhwj)
![When a negative bias is applied to a two-dimensional MXene electrode, Li+ ions from the electrolyte migrate in the material via specific channels to the reaction sites, where the electron transfer occurs. When a negative bias is applied to a two-dimensional MXene electrode, Li+ ions from the electrolyte migrate in the material via specific channels to the reaction sites, where the electron transfer occurs.](/sites/default/files/styles/list_page_thumbnail/public/news/images/JCome_MXene.jpg?itok=Sy9BDx65)
Researchers at the Department of Energy's Oak Ridge National Laboratory have combined advanced in-situ microscopy and theoretical calculations to uncover important clues to the properties of a promising next-generation energy storage material for