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Replacing the volatile and flammable liquid or polymer electrolytes now used in lithium-ion batteries with inorganic solid-state lithium-ionic ceramic conductors could significantly improve both safety and performance of the cells. Solid-state conductors would allow for novel cathode and anode chemistry, prevent the growth of Li-metal dendrites and push miniaturization.Though researchers have investigated several structural families of promising solid-state Li-ion conductors over the past decades, the fact that there are many desired properties--including fast-ionic/superionic diffusion of Li ions, very low electronic mobility, wide electrochemical stability windows, and high mechanical stability--means that no one material has emerged as an ideal candidate for development and so the searc...
发布时间: 2020 - 01 - 22
浏览次数:223
Researchers have developed a new procedure for producing materials that require high hardness and strength.
发布时间: 2019 - 10 - 30
浏览次数:267
Indian State-run National Aluminium Company Limited (Nalco) is facing an acute shortage of coal supplies of up to almost 50% of its daily requirement to fuel its 1 200 MW of captive thermal power plant, risking the closure of its smelting potlines.
发布时间: 2019 - 10 - 25
浏览次数:168
A new glass ceramic material could become a better alternative to use in construction. Miguel Hernández University (UMH)
发布时间: 2019 - 10 - 17
浏览次数:130
All aluminium processing mills in Jiaozuo of Henan province have been closed as of September 24 and aluminium processors in Tianjin are imposed with a 50% output cut from September 25, as cities close to Beijing strengthened environmental curbs before the National Day on October 1.
发布时间: 2019 - 09 - 27
浏览次数:245
Scientists have calculated that a hydrogen-rich compound could conduct electricity without resistance at temperatures up to about 200° Celsius — well above the 100° C boiling point of water. If that prediction is confirmed experimentally, the material would stand in stark contrast to all other known superconductors, which must be cooled below room temperature to work.
发布时间: 2019 - 09 - 18
浏览次数:350
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