'Hidden galaxies' could be smoking gun in universe riddle
https://phys.org/news/2025-04-hidden-galaxies-gun-universe-riddle.html
phys.org'Hidden galaxies' could be smoking gun in universe riddleAstronomers have peered back in time to find what looks like a population of "hidden" galaxies that could hold the key to unlocking some of the universe's secrets. If their existence is confirmed it would "effectively break current models of galaxy numbers and evolution." The possible galaxies may also provide the missing piece of the puzzle for the energy generation in the universe in infrared light.
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Improving Aluminium-Ion Batteries with Aluminium-Fluoride Salt.![A published paper by Chinese researchers claims to have overcome some of the biggest hurdles. In the paper as published in ACS Central Science by [Ke Guo] et al. the use of solid-state electrolyte, a charge cycle endurance beating LiFePO4 (LFP) and excellent recyclability are claimed.
<https://pubs.acs.org/doi/10.1021/acscentsci.4c01615>
It’s been known for a while that theoretically Al-ion batteries can be superior to Li-ion in terms of energy density, but the difficulty lies in the electrolyte, including its interface with the electrodes.
<https://en.wikipedia.org/wiki/Aluminium-ion_battery>](https://nerdculture.de/system/media_attachments/files/114/307/751/586/922/280/original/72d326c52b19e1f0.jpeg "A published paper by Chinese researchers claims to have overcome some of the biggest hurdles. In the paper as published in ACS Central Science by [Ke Guo] et al. the use of solid-state electrolyte, a charge cycle endurance beating LiFePO4 (LFP) and excellent recyclability are claimed.
<https://pubs.acs.org/doi/10.1021/acscentsci.4c01615>
It’s been known for a while that theoretically Al-ion batteries can be superior to Li-ion in terms of energy density, but the difficulty lies in the electrolyte, including its interface with the electrodes.
<https://en.wikipedia.org/wiki/Aluminium-ion_battery>")
![[ImageSource: ACS Central Science]
The newly developed electrolyte (F-SSAF) uses aluminium-fluoride (AlF3) to provide a reliable interface between the aluminium and carbon electrodes, with the prototype cell demonstrating 10,000 cycles with very little cell degradation. Here the AlF3 provides the framework for the EMIC-AlCl3 electrolyte. FEC (fluoroethylene carbonate) is introduced to resolve electrolyte-electrode interface issues.
A recovery of >80% of the AlF3 during a recycling phase is also claimed, which for a prototype seems to be a good start. Of course, as the authors note in their conclusion, other frameworks than AlF3 are still to be investigated, but this study brings Al-ion batteries a little bit closer to that ever-elusive step of commercialization and dislodging Li-ion.](https://nerdculture.de/system/media_attachments/files/114/307/753/514/699/430/original/1d5b44dcb19485e1.png "[ImageSource: ACS Central Science]
The newly developed electrolyte (F-SSAF) uses aluminium-fluoride (AlF3) to provide a reliable interface between the aluminium and carbon electrodes, with the prototype cell demonstrating 10,000 cycles with very little cell degradation. Here the AlF3 provides the framework for the EMIC-AlCl3 electrolyte. FEC (fluoroethylene carbonate) is introduced to resolve electrolyte-electrode interface issues.
A recovery of >80% of the AlF3 during a recycling phase is also claimed, which for a prototype seems to be a good start. Of course, as the authors note in their conclusion, other frameworks than AlF3 are still to be investigated, but this study brings Al-ion batteries a little bit closer to that ever-elusive step of commercialization and dislodging Li-ion.")
