Nowadays, the electric vehicle battery charging in the market runs 150 kilometers in three or four hours, and the new battery charging efficiency developed by South Polytechnic will be greatly improved. On August 3, the National Symposium on the Construction of Energy-Saving and New Energy Vehicles Specialty was held at Nan-Tech University. The school revealed that the same distance was spent, and the new battery charging time was less than 1/4.
On August 3, on the campus of Polytechnic University, the reporter saw a pure electric bus that looked like an ordinary bus. The bus that powers the bus is the lithium battery that sits underneath its "belly". It occupies a space as big as two suitcases. When it is fully charged, the car can run 250 kilometers to 500 kilometers.
“The current lithium battery on an ordinary pure electric bus can be charged for three to four hours and can run for 150 kilometers.†Hu Wenbin, an associate professor at South China University of Technology, introduced the lithium battery of the pure electric bus developed by his team, which can be quickly recharged for 40 minutes. Running 150 kilometers, 17 to 21 CMBs and small buses can run downtown with one charge.
"The core technology we developed was on the battery cooling system and the smart battery energy management system." Hu Wenbin introduced that the battery pack of a bus is made up of more than 150 batteries connected in series. Before the entire battery was charged, it would not The specific performance of the battery is monitored, and the charging effect is greatly compromised because it is closely related to the battery with the worst performance. The intelligent battery energy management system can monitor the temperature, power and actual charge absorption rate of each battery to adjust the current when charging, so that each battery is evenly charged.
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