New lithium battery 10 minutes fast charge life 6-8 years

Hengtong joint micro-power, China Aerospace, Wuhan University, Puyang Electric and other companies, research institutions jointly launched fast-charging pure electric passenger cars, the use of international advanced new lithium batteries, in the positive and negative materials, separators, electrolytes, a lot of Improved and optimized, the battery pack has the advantage of 10 minutes of rapid charging and a service life of 6 to 8 years. This kind of electric bus can be charged at the starting point and the terminal station using the vehicle turnaround time. The whole vehicle can be equipped with about 50 kWh battery to meet the requirements of one-way operation. The weight of the battery is reduced by 50% and the purchase and use costs are greatly reduced.

The fast charging pure electric buses jointly developed by Hengtong and Weihong have been put into demonstration operation in Huzhou, Zhejiang Province, marking a major step for us to reach the goal of new energy vehicles. The past electric cars had difficulties in battery and charging modes, which hindered the promotion of large-scale deployment. First, China's electric vehicle parts and components have low industrialization capacity, small scale and high cost. Taking a 12-meter bus equipped with a 200-kilowatt battery to run 200 kilometers as an example, the battery cost is about 600,000 yuan, and the cost of motors and electronic control systems is 100,000 to 150,000 yuan higher than that of conventional engines. The cost of vehicle purchase is higher than traditional The car is 700,000 to 750,000 yuan high. After deducting the national financial subsidies of 500,000 yuan, the cost of bicycle purchases will increase by 200,000 to 250,000 yuan. Bus companies cannot afford such a high cost. Second, the cycle of battery charging and discharging is small, usually about 1000 times, and the service life is 2 to 3 years. The service life of the electric bus is about 8 years, and the battery needs to be replaced twice in the middle, increasing the cost to over 1 million yuan. Third, there are currently two models for domestic electric vehicle charging. One is that vehicles are directly charged for four to six hours, not only for a long time, but also for a large number of charging equipments, and they occupy a large area; the other is that the replacement of batteries is directly replaced by the construction and replacement of the power station. Although the efficiency is improved, the construction scale of the power station is large. , Big investment. A replacement station requires about 50 million yuan, and it also requires a large number of spare batteries. Fourth, the specific energy of the battery is lower. A 200-watt-hour battery in a 12-meter electric passenger car has increased its own weight, which has seriously affected the number of vehicles carrying heavy loads. These problems make it even more difficult for electric bus passengers to afford them. Urban bus companies using electric buses rely on the support of the national and local government funds, and it is difficult to promote them in a large scale.