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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:229
The electronics market is growing constantly and so is the demand for increasingly compact and efficient power electronic systems. The predominant electronic components based on silicon will in the foreseeable future no longer be able to meet the increasing industrial requirements. This is why scientists from the university of Freiburg, the Sustainability Center Freiburg and the Fraunhofer-Gesellschaft have joined forces in order to explore a new material structure that may be better suited for future power electronics.
发布时间: 2019 - 02 - 12
浏览次数:161
Riccardo Comin seeks to elucidate the microscopic physics of high-temperature superconducting devices to advance their technological applications, writes Denis Paiste
发布时间: 2019 - 01 - 21
浏览次数:150
Open-cell materials, such as metal and ceramic foams, have been extensively utilized in high-temperature applications due to their light weight, good flow-mixing capability, and ability to cover a large surface area. They are commonly composed of interconnected solid struts and accessible void spaces
发布时间: 2019 - 01 - 14
浏览次数:185
Researchers have developed a ceramic-based mechanical pump able to operate at record temperatures of more than 1,400 degrees Celsius (1,673 Kelvin), opening the door to a new generation of energy conversion and storage systems.
发布时间: 2019 - 01 - 08
浏览次数:192
Printing complex ceramic objects has been made possible thanks to the invention of a new ink.
发布时间: 2019 - 01 - 02
浏览次数:182
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