Electric vehicle battery breakthrough: 6 minutes of charging reaches 85% capacity.

This is seen as an effort to address one of the biggest hurdles facing the electric vehicle industry today: long charging times and the risk of battery degradation from fast charging.

According to a research team from the University of Adelaide (Australia) led by Professor Shi-Zhang Qiao, the new technology uses a method of improving the electrode surface instead of changing the entire electrolyte as in traditional solutions.

Scientists have created sulfur vacancies to attract anions during charging, thereby forming a lithium fluoride-rich protective layer on the battery surface. This layer enhances fast charging while maintaining ion conductivity and battery stability.

A recently announced breakthrough in electric vehicle batteries simultaneously solves two difficult problems: significantly reducing charging times and protecting battery lifespan. **(Photo: VOV)**

Test results showed that the battery could reach 85% capacity after just 6 minutes of charging, while achieving an energy density of approximately 240.4 Wh/kg. After 500 consecutive fast-charging cycles, the battery still retained about 76% of its original capacity. The average Coulomb efficiency reached approximately 99.94%, indicating very low energy loss during the charging and discharging process.

Researchers consider this a significant breakthrough because high-capacity batteries, especially those using silicon or lithium anodes, have long been prone to rapid degradation during high-speed charging. The heat generated during charging also causes batteries to degrade faster and poses potential safety risks.

Professor Qiao stated that achieving a charge level above 90% in less than 10 minutes without affecting battery lifespan has always been a major challenge for the electric vehicle industry.

In reality, most commercial electric vehicles still require anywhere from a few tens of minutes to several hours to fully charge. Some electric car models support fast charging, going from 10% to 70% in about 25 minutes, while many electric motorcycle models need 4-10 hours to fully charge, depending on battery technology and charger capacity.

Experts believe that if the new technology is successfully commercialized, the charging time for electric vehicles could be shortened to almost the same as refueling with traditional gasoline. This would not only improve the user experience but also contribute to the global transition to green transportation.

The research team is currently expanding the testing to real-world conditions before bringing the technology into commercial production. The research results have been published in the journal Nature Energy.

Source: https://baogialai.com.vn/dot-pha-pin-xe-dien-sac-6-phut-dat-85-dung-luong-post588337.html