China News Service, Shenzhen, May 24th (Zheng Xiaohong and Zhu Zuying) The reporter learned from the Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences on the 24th that a new lithium-ion battery technology developed by the research team of Tang Yongbing's Carbon Neutral Research Institute (in preparation), Large-scale mass production has been completed. It is a battery cell product with wide temperature range, low cost and long life in China.
According to the relevant person in charge of the Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, the researcher team of Tang Yongbing has developed a new lithium-ion battery technology for nearly ten years. can be taken into account at the same time.
It is understood that due to the limitation of key battery materials, lithium-ion batteries cannot be charged at low temperatures below zero, and safety cannot be guaranteed at high temperatures above 50 °C. Automatic shutdown, spontaneous combustion of electric vehicles in summer, etc.
Relevant researchers of the team said that the new aluminum-based anode material developed this time can effectively alleviate the generation of lithium dendrites and improve safety under low temperature and overcharge conditions.
In terms of battery life, the energy density of the battery is 13% to 25% higher than that of traditional lithium-ion batteries, which can achieve long battery life and can be fully charged in 20 minutes.
At the same time, in terms of cost, based on the performance advantages of the aluminum-based composite negative electrode, combined with the developed high-performance electrolyte, low-temperature battery products can get rid of the dependence on expensive nano-scale positive electrode materials, and the battery cost can be reduced by 10% to 30%.
In addition, related research results have formed more than 180 patent pools, including PCT international patents, Chinese invention patents, patents in the United States, Europe, Japan and South Korea, and more than 120 authorized patents.
Arumugam Manthiram, an international expert in energy storage materials and electrochemistry and a professor at the University of Texas at Austin, pointed out that this achievement is the first to propose the concept of a bifunctional aluminum-based anode, matching commercial cathodes such as lithium cobalt oxide, lithium iron phosphate, ternary The long-cycle stability exhibited by the battery makes the aluminum-based battery have great application potential.
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