article: Original by Dongchedi Cailimei
[Original by Dongchedi Industry] Recently, according to , a study published in the latest issue of "Nature", said that researchers from Penn State University in the United States have developed a breakthrough technology to shorten the charging time of electric vehicle battery to only 10 minutes. It is reported that this is a record-breaking combination between shorter charging time and longer driving mileage.
Picture source: Chinese Academy of Sciences official website
It is understood that this new technology relies on internal thermal modulation, and through active temperature control methods, the battery achieves the best performance as much as possible. The battery operates the most efficiently at a certain temperature, but cannot overheat. Always keeping the battery in a proper temperature is a major challenge for battery designers. In contrast, the battery temperature was adjusted in the past by relying on external heating and cooling systems. But this type of system responds slowly and consumes a lot of energy. And the research team decided to adjust the temperature from the inside of the battery.
According to the introduction, the research team worked with startup EC Power to develop a new battery structure - in addition to the anode, electrolyte and cathode, ultra-thin nickel foil was added as the fourth ingredient. It is reported that since nickel foil can self-regulate the temperature and reactivity of the battery, this technology can achieve 10 minutes fast charging on most electric vehicle batteries.
"This technology relies on internal thermal modulation and is an active temperature control method that requires the best performance of the battery"
The researcher pointed out that if new car sales are to switch to battery-powered electric car , two main disadvantages need to be overcome: too slow charging speed and too large volume.
It is understood that this new fast charging technology, , is suitable for most energy-intensive batteries . The battery capacity of electric vehicles may be reduced from 150 kWh to 50 kWh, which is equivalent to reducing to one-third of the previous one. will not make drivers feel mileage anxiety.
Researchers said that smaller batteries and faster charging rates will greatly reduce the use of key raw materials such as cobalt, graphite , lithium, etc., thereby reducing the cost of batteries. allows electric vehicles with higher cost performance to promote on a large scale.
