English

Particles have "fuzzy memory" in solid-state batteries

112
2024-02-18 14:59:02
See translation

When you shoot a laser at a solid-state battery, you find that the particles inside are not thrown into the chaos. This surprised a team of researchers from the United States and the United Kingdom.


The team discovered the persistence of memory in ions that help move electricity around solid-state batteries.
This discovery has improved the understanding of solid-state batteries, which are candidates for the next generation of safer and more powerful batteries.
A paper describing this study was published in the journal Nature.


The team is studying the behavior of ions in solid-state battery electrolytes when a laser emits a sudden voltage through it.
Previously, researchers observed that ions in these electrolytes "jump" from one place to another in a chaotic manner, ultimately causing charges to flow.

But the team found that within one billionth of a second, the ions briefly changed direction and returned to their previous position - then continued their chaotic way.
The main author Andrei Poletayev is a postdoctoral researcher at the University of Oxford, who refers to it as "fuzzy memory.".

"Researchers have been using macroscopic tools to study ion transport for a long time, and they cannot observe what we see in this study," Poletayev said.
Researchers use high-frequency lasers with pulses of only a few trillions of seconds to observe the movement of ions - the light reflected from the electrolyte can tell them what the ions are doing.

"Many strange and unusual things happen during ion hopping," said senior author Aaron Lindenberg, a professor at Stanford University and the SLAC National Accelerator Laboratory in the United States, where experiments were conducted.
When we apply the force of vibrating the electrolyte, ions do not react immediately like most materials.
Ions may sit there for a while, suddenly jump up, and then sit there for a long time. You may need to wait for a while before suddenly experiencing a huge displacement.
Therefore, there are randomness factors in this process, which makes these experiments difficult.

Source: Laser Net

Related Recommendations
  • The scientific research team of Beijing University of Technology opens up a new field of on-chip optics research

    Zhang Jun, an academician team of Beijing University of Technology, pioneered the on chip spectral multiplexing perception architecture, and independently developed the first 100 channel megapixel hyperspectral real-time imaging device in the world, creating the world's highest light energy utilization rate. On November 7, the team's relevant achievements were published in the journal Nature, and ...

    2024-11-08
    See translation
  • Application of Airborne Lidar Calibration Board in Various Fields

    With the rapid development of technology, airborne LiDAR technology has become one of the key technologies in modern surveying, remote sensing, navigation and other fields. As an important component of this technology, the airborne LiDAR calibration board plays a crucial role in ensuring the accuracy and stability of the radar system. This article will explore the application and importance of air...

    2024-04-08
    See translation
  • Changchun Institute of Optics and Mechanics has developed blue-green fluorescent transparent ceramics for laser lighting, laying a key fluorescence material foundation for full color laser lighting

    The project of the National Natural Science Foundation of China (Jilin Province) "Multicolor Transparent Silicate Garnet Fluorescent Ceramics for Laser Lighting" presided over by Zhang Jiahua, a researcher in the State Key Laboratory of Luminescence and Applications of Changchun Institute of Optics and Fine Mechanics, has made breakthrough progress, developed green fluorescent transparent ceramics...

    2023-09-26
    See translation
  • From Colored Glass Windows to Lasers: Nanogold Changes Light

    For a long time, craftsmen have been fascinated by the bright red color produced by gold nanoparticles scattered in colored glass masterpieces. The quantum origin of this optical miracle has always been mysterious, until modern advances in nanoengineering and microscopy revealed the complexity of plasma resonance.Now, researchers are preparing to push nano plasma technology, which was once used fo...

    2024-01-02
    See translation
  • Commitment to achieving 100 times the speed of on-chip lasers

    Although lasers are common in daily life, their applications go far beyond the scope of light shows and barcode reading. They play a crucial role in telecommunications, computer science, and research in biology, chemistry, and physics. In the latter field, lasers that can emit extremely short pulses are particularly useful, approximately one trillionth of a second or less.By operating these lasers...

    2023-11-13
    See translation