Article (Scientific journals)
Highly Crystalline Poly(heptazine imide)-Based Carbonaceous Anodes for Ultralong Lifespan and Low-Temperature Sodium-Ion Batteries.
Wang, Ying; Li, Hongguan; Zhai, Boyin et al.
2024In ACS Nano, 18 (4), p. 3456 - 3467
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Keywords :
2D nanosheet; highly crystalline poly(heptazine imide); sodium-ion batteries; Carbonaceous anodes
Abstract :
[en] Carbon nitrides with layered structures and scalable syntheses have emerged as potential anode choices for the commercialization of sodium-ion batteries. However, the low crystallinity of materials synthesized through traditional thermal condensation leads to insufficient conductivity and poor cycling stability, which significantly hamper their practical applications. Herein, a facile salt-covering method was proposed for the synthesis of highly ordered crystalline C3N4-based all-carbon nanocomposites. The sealing environment created by this strategy leads to the formation of poly(heptazine imide) (PHI), the crystalline phase of C3N4, with extended π-conjugation and a fully condensed nanosheet structure. Meanwhile, theoretical calculations reveal the high crystallinity of C3N4 significantly reduces the energy barrier for electron transition and enables the generation of efficient charge transfer channels at the heterogeneous interface between carbon and C3N4. Accordingly, such nanocomposites present ultrastable cycling performances over 5000 cycles, with a high reversible capacity of 245.1 mAh g-1 at 2 A g-1 delivered. More importantly, they also exhibit an outstanding low-temperature capacity of 196.6 mAh g-1 at -20 °C. This work offers opportunities for the energy storage use of C3N4 and provides some clues for developing long-life and high-capacity anodes operated under extreme conditions.
Disciplines :
Chemistry
Author, co-author :
Wang, Ying;  School of Metallurgy, Northeastern University, Shenyang 110819, P. R. China ; State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, P. R. China ; Foshan Graduate School of Innovation, Northeastern University, Foshan 528311, Guangdong, P. R. China
Li, Hongguan;  School of Metallurgy, Northeastern University, Shenyang 110819, P. R. China ; State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, P. R. China ; Foshan Graduate School of Innovation, Northeastern University, Foshan 528311, Guangdong, P. R. China
Zhai, Boyin;  Department of Chemistry, College of Science, Northeastern University, Shenyang 110819, Liaoning, P. R. China
Li, Xinglong;  Department of Chemistry, College of Science, Northeastern University, Shenyang 110819, Liaoning, P. R. China
Niu, Ping ;  School of Metallurgy, Northeastern University, Shenyang 110819, P. R. China ; State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, P. R. China ; Foshan Graduate School of Innovation, Northeastern University, Foshan 528311, Guangdong, P. R. China
ODENT, Jérémy  ;  Université de Mons - UMONS > Faculté des Sciences > Service des Matériaux Polymères et Composites
Wang, Shulan;  Department of Chemistry, College of Science, Northeastern University, Shenyang 110819, Liaoning, P. R. China
Li, Li ;  School of Metallurgy, Northeastern University, Shenyang 110819, P. R. China ; State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, P. R. China ; Foshan Graduate School of Innovation, Northeastern University, Foshan 528311, Guangdong, P. R. China
Language :
English
Title :
Highly Crystalline Poly(heptazine imide)-Based Carbonaceous Anodes for Ultralong Lifespan and Low-Temperature Sodium-Ion Batteries.
Publication date :
30 January 2024
Journal title :
ACS Nano
ISSN :
1936-0851
eISSN :
1936-086X
Publisher :
American Chemical Society, United States
Volume :
18
Issue :
4
Pages :
3456 - 3467
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S816 - Matériaux Polymères et Composites
Research institute :
Matériaux
Funders :
Basic and Applied Basic Research Foundation of Guangdong Province
Fundamental Research Funds for the Central Universities
National Natural Science Foundation of China
Liaoning Province
Funding text :
This work was supported by the National Natural Science Foundation of China (22378055), Applied Basic Research Program of Liaoning (2022JH2/101300200), Guangdong Basic and Applied Basic Research Foundation (2022A1515140188), Fundamental Research Funds for the Central Universities (N2002005, N2125004, N2225044, and N232410019). We also appreciate the instrumental analysis from Analytical and Testing Center, Northeastern University.
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