18650 battery lithium ion 2200mah.Postgraduate student's supercapacitor-related results published in authoritative international journals

　　Recently, Zhang Jingjing, a graduate student at the School of Chemistry and Materials Engineering at Wenzhou University, has made important progress in supercapacitors of new hybrid materials. This research has introduced a simple, direct, environmentally friendly and cost-effective strategy to explore supercapacitors of new composite materials. A very good value. This related research result was published in Advanced Energy Materials (impact factor 21.875), a top international journal in the field of materials and energy, titled "In-Situ Encapsulation of Iron Complex Nanoparticles into Biomass-Derived Heteroatom-Enriched Carbon Nanotubes for High-Performance Supercapacitors" (Iron composite nanoparticles are in-situ encapsulated in biomass-derived carbon nanotubes for high-performance supercapacitors). The results were published by Professor Jin Huile and Professor Wang Shun of Wenzhou University and Lei Lei of the Technical University of Ilmenau in Germany. Completed under the cooperative guidance of Professor Yong.

　　This study adopts in-situ synthesis of iron composite nanoparticles wrapped in biomass-derived N, P co-doped carbon nanotubes, using the natural resource egg yolk as the heteroatom-rich carbon source and potassium ferricyanide as the precursor of the iron compound. body. The synergistic effect of heteroatom doping and FeX nanoparticle composite as well as unique structural features endow the prepared materials with excellent supercapacitive properties. The symmetrical supercapacitor assembled based on FeX@NPCNTs electrodes shows excellent performance at a current density of 0.5·A/g. The specific capacitance (volume capacitance 1312.0Fcm-3), and after 50,000 cycles, there is almost no loss of capacity.

　　It is reported that in recent years, the School of Chemistry and Materials Engineering at the University of Wenzhou has relied on the scientific research advantages of the first-class (Class A) key disciplines of chemistry in Zhejiang Province to continuously deepen the reform of the graduate training system, explore innovative talent training mechanisms, and allow all graduate students to participate in the research of tutors. The spirit and ability of academic innovation have been cultivated in scientific research practice. According to statistics, in the past three years, graduate students have published more than 20 articles in authoritative international journals with impact factors greater than 10, presided over more than 30 scientific research projects of the Zhejiang Provincial New Miao Talent Plan, and have been admitted to well-known domestic and foreign universities such as Tsinghua University and Zhejiang University. There are more than 50 PhD students in scientific research institutions, and they have won the second prize in the "Challenge Cup" National College Student Extracurricular Academic Science and Technology Works Competition.

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