lnmo batteries - 18650 rechargeable lithium ion battery
And most lithium cathode materials today-
The ion battery works up to 4.
2 volts, called cathode material of LNMO spinel (
Composed of lithium, nickel, manganese and oxygen atoms)
Function in 4. 9 V.
Why this material performs well under high pressure is still a mystery.
In a new study,
An institutional research team led by scientists at the University of California, San Diego (UCSD)
The answer has been given.
Published in the latest issue of Science, this insight can help battery developers design rechargeable lithium-
Ion battery working at higher voltage, this property is critical for the battery used at high voltage
Electric power applications such as electric vehicles.
The researchers used a powerful 3D X.
The ray imaging technology is combined with the new data analysis algorithm to gain an in-depth understanding of the mechanical properties of the material on the nano scale.
They find and locate defects inside the material that are irregular in their highly ordered atomic structure.
When the cathode material is in charge of lithium, the research team imaging ition battery.
Analysis of the image shows that the defect is stationary when the battery is at rest, but when the battery is charged to high voltage, the defect moves around in the cathode material.
This is an important finding because "the material usually responds to strain by cracking.
Our experiments show that this material deals with strain by moving defects while the battery is charging, "said Shirley Meng of UCSD, the corresponding author of the study.
"From the perspective of battery material researchers, this study also points out the exciting possibility of" defect engineering "of battery materials.
This will include designing new battery materials with specific "defects" that improve performance.