SMM: on October 19, local time, researchers from (Pohang University of Science and Technology) of South Korea's Pohang University of Technology and (Sungkyunkwan University) of Seung Kwan University announced that they have successfully developed a faster and more durable electric vehicle battery charging technology, which can charge electric vehicle batteries to 90% in less than 6 minutes.
Up to now, the main way to accelerate the charge and discharge speed of secondary battery or electric vehicle battery is to reduce the size of the electrode material, but the disadvantage of this method is that it will reduce the energy density of the battery.
As a result, the team proposed a new solution to make the charge and discharge faster without losing the battery's energy density by creating an intermediate phase during the phase change of the battery's charge and discharge. at the same time, there is no need to reduce the size of the electrode particles.
When the battery is charging and discharging, the phase change material will transition to a new phase for the entry and exit of lithium, resulting in phase change.
The secondary battery electrode developed by the research team can be fully charged in 6 minutes and 54% in 18 seconds, providing a better development prospect for secondary batteries with higher output capacity.
