Ma Hongyun, male, Ph.D., senior engineer, Tianjin "131" innovative engineering talent, serves as the department director of the basic R&D department of Lishen R&D Center, and the enterprise tutor of graduates of the Institute of Process Engineering of the Chinese Academy of Sciences. The main research fields include the development of cathode, anode, separator, electrolyte, binder and other material of lithium ion battery, the development of high specific energy lithium ion battery and forward-looking battery technology research. The projects he participated and completed are as follow: the national "973" R&D plan project, the national "863" R&D plan project, the "13th Five-Year Plan" major special project of the Ministry of Science and Technology of the People's Republic of China "The Development of High Specific Energy Power Lithium-ion Battery and Industrialization Technology Research", the national key R&D plan "New Energy Vehicle" key special project "High-performance power battery system integration and development technology research" project, the Ministry of Science and Technology key R&D plan of the People's Republic of China "The Research and Application of Key Technology of High Safety and Long-life Bus Power Battery System" project, the National Natural Science Foundation of China project, National High-tech Research and Development Program, Tianjin Science and Technology R&D Program-High Specific Energy Battery R&D and Innovation Center Project. He has published 19 papers in Chinese and English important academic journals, including Electrochemistry, RSC Advances, Energies, Journal of Energy Chemistry, ACS Sustainable Chemistry & Engineering, The Journal of Physical Chemistry Letters, and Advanced Energy Materials, etc., and also applied for or was authorized 17 invention patents.