The most important part of an electric car is a power battery. Wan Gang, Minister of Science and Technology, said on April 26, 2016 that in the next five years, efforts will be made to double the energy density of the power battery unit and reduce the manufacturing cost by 50%; while reducing the unit battery energy to more than 300 watt hours, the cost will be reduced to 1 Yuan below. “Development on the scale and basic research are the driving force of the power battery.†Wan Gang said at the 2016 China Automotive Forum that in the future China will pay more attention to basic technology research and continue to consolidate in the development of the power battery. Problems, identify scientific solutions, and resolve common key technical issues. It is understood that as China continues to invest in research and development of power batteries, the efficiency of power batteries continues to increase and costs continue to decline. Compared with 2011, the power battery unit energy density has been doubled in 2015, and manufacturing costs have been reduced by 30%. "Whether from the perspectives of energy, environmental protection, or the auto industry itself, the future of the auto industry points to the direction of new energy." Wan Gang said that the adjustment of China's energy structure provides energy security for the development of new energy vehicles; related regulations for the automotive industry The proposed reduction in consumption also promotes the transformation of industries into new energy sources. In recent years, China's new energy automotive industry has developed rapidly. According to data from the China Automobile Association, from January to March this year, the country produced 62,663 new energy vehicles and sold 58,125 vehicles. In 2011, the production and sales of new energy vehicles in China were less than 5,000.
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5 years of car battery energy density increase 1 times 
