Recently, Professor Huang Hao's Materials and Devices Laboratory, School of Materials Science and Engineering, Dalian University of Technology, published "Nano Energy" (Impact Factor: 11.553), a top international journal on energy, -ion ​​batteries through post-synthesis nitridation "for the title of the research results. In this study, aiming at the bottleneck problem of electrode powdering failure caused by the serious volume expansion of active material in lithium-ion secondary battery during cycling, a carbon-constrained iron nitride nano-shell structure was proposed. The structure not only effectively suppresses the volume change of the internal active material during charging and discharging, but also provides an effective path for the rapid transfer of interfacial charges by the surface multi-defective carbon layer. Experiments show that in 500 cycles the battery can still maintain the working capacity, did not find significant attenuation. Reviewers highly value material design novelties and electrochemical properties. Faculty of Materials Science and Engineering, Institute of Energy Materials and Devices, faces major national needs in energy field and explores key technologies such as macroscopic preparation of nanomaterials, control of nanostructures and high-density storage of electrodes. The use of microwave vapor deposition, hot wire vapor deposition, magnetron sputtering, DC arc, high energy electron beam and other plasma physical methods combined with chemical control modification to complete the fine structure of nano-control and nano-electrodes with complex structure design and manufacture of lithium-ion Batteries, lithium-sulfur batteries, lithium-ion batteries, supercapacitors, fuel cells and other energy efficient storage and long-term service solutions. The laboratory undertakes a number of national and provincial scientific research projects including the National Natural Science Foundation of China and the "13th Five-Year Plan" national key research and development program. The research results provide theoretical basis and technical support for engineering application of nano-energy materials and devices. Nano Energy is a division of the Chinese Academy of Sciences into TOP 1 magazines covering various disciplines of nanomaterials and nanodevices in energy conversion, energy storage, energy harvesting and energy use. The research work was supported by Professor Zhao Jijun, School of Physics and Optoelectronics Engineering, and Professor Cao Guozhong, "Thousand Talents Program" (Washington University in USA). The research work has been jointly funded by the "13th Five-Year" national key research and development program, the National Natural Science Foundation of China and the basic research service fees of the Central Universities.
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