Research Article

|

2021, 14(11): 4336−4346

|

https://doi.org/10.1007/s12274-021-3853-6

Covalent interfacial coupling of vanadium nitride with nitrogenrich carbon textile boosting its lithium storage performance as binder-free anode

Di Zhao1, Jinwen Qin1, Lirong Zheng2, Donglei Guo3, Jie Wang1, and Minhua Cao1 (✉)

View Author's information

1 Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
2 Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100049, China
3 Key Laboratory of Function-oriented Porous Materials, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, 471934, China

Keywords: vanadium nitride, nitrogen-rich carbon textile, covalent interface, Li ion battery, binder-free anode
Full article PDF
Cite this article(Endnote)
Share this article
Metric

views: 30

Citations: 0

  • Abstract
  • References
  • Electronic Supplementary Material
Eliminating the usage of metal current collectors and binders in traditional battery electrode configuration is an effective strategy to significantly improve the capacities of lithium ion batteries (LIBs). Herein, we demonstrate the construction of porous vanadium nitride (VN) nanosheet network in situ grown on nitrogen-rich (N-rich) carbon textile (N-C@P-VN) as lightweight and binder-free anode for LIBs. The N-rich carbon textile is used both as the current collector and host to store Li+, thus improving the specific capacities of binder-free VN anode and meanwhile reducing the inert mass of the whole cell. Moreover, the open spaces in carbon textile and vertically aligned pores in VN nanosheet network can not only provide an expressway for Li+ and e transport, but also afford more active sites. As a result, the binder-free N-C@P-VN anode maintains a specific capacity of 1,040 mAh∙g−1 (or an areal capacity of 2.6 mAh∙cm−2) after 100 cycles at 0.1 mA∙cm−2 in half cell. Moreover, in an assembled N-C@P-VN//LiFePO4 full cell, it exhibits an areal capacity of 1.7 mAh∙cm−2 after 300 cycles at 0.1 C. The synergistic strategy of N-C substrate and porous VN network could be applied to guide rational design of similar N-C@nitride or sulfide hybrid systems with corresponding sulfur-doped carbon textile as the substrate.
Related Article
Cite this article

Covalent interfacial coupling of vanadium nitride with nitrogenrich carbon textile boosting its lithium storage performance as binder-free anode. Nano Res. 2021, 14(11): 4336−4346 https://doi.org/10.1007/s12274-021-3853-6

Download citation