Design and synthesis of a 3D graphene-enhanced electrode for fast charge/ion transport for lithium storage
- 5 October 2022
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in New Journal of Chemistry
- Vol. 46 (43), 20691-20698
- https://doi.org/10.1039/d2nj04012c
Abstract
Rational design and synthesis processes are very important for giving a product an excellent performance. Sn-based anode materials with a high theoretical capacity and suitable working potential usually suffer from severe capacity fading due to their inferior electronic conductivity and obvious volumetric variations, hindering their practical applications. Herein, hierarchical N doped graphene-supported SnO2/Zn2SnO4 (SnO2/Zn2SnO4-NG) is successfully prepared via a facile approach forming a 3D hierarchical configuration. As an anode for lithium-ion batteries, the SnO2/Zn2SnO4-NG anode can reach a high reversible capacity (837 mA h g−1 after 300 cycles at 0.2 A g−1) and rate capability (403 mA h g−1 at 5 A g−1) but also show extraordinary durability. Furthermore, it exhibits an impressive rate performance and maintains superior cycling stability. Such significantly enhanced electrochemical performances of the SnO2/Zn2SnO4-NG anode can be attributed to the unique structural design, which can not only effectively reduce the stress from the discharging/charging process and maintain the structural stability of the electrode during cycling but also alleviate aggregation of the active materials and facilitate electrolyte/ion transport. Meanwhile, Zn2SnO4 can greatly improve the electrical conductivity (confirmed by DFT calculations), and SnO2/Zn2SnO4 can create more active sites for lithium storage. This work thus verifies the great potential of the SnO2/Zn2SnO4-NG composite for applications as a high-performance anode material in next-generation Li storage.Funding Information
- National Natural Science Foundation of China (21903051)
- Education Department of Shaanxi Province (21JK0338)
This publication has 55 references indexed in Scilit:
- A nanocrystalline structured NiO/MnO2@nitrogen-doped graphene oxide hybrid nanocomposite for high performance supercapacitorsNew Journal of Chemistry, 2017
- Flexible free-standing ternary CoSnO 3 /graphene/carbon nanotubes composite papers as anodes for enhanced performance of lithium-ion batteriesEnergy, 2017
- Zn2SnO4/graphene composites as anode materials for high performance lithium-ion batteriesJournal of Alloys and Compounds, 2016
- Co3S4@polyaniline nanotubes as high-performance anode materials for sodium ion batteriesJournal of Materials Chemistry A, 2016
- In situ and ex situ carbon coated Zn2SnO4 nanoparticles as promising negative electrodes for Li-ion batteriesRSC Advances, 2015
- Facile synthesis of fine Zn 2 SnO 4 nanoparticles/graphene composites with superior lithium storage performanceJournal of Power Sources, 2015
- Formation of core–shell-structured Zn2SnO4–carbon microspheres with superior electrochemical properties by one-pot spray pyrolysisNanoscale, 2014
- A flexible and transparent graphene/ZnO nanorod hybrid structure fabricated by exfoliating a graphite substrateNanoscale, 2014
- Raman spectroscopy to probe residual stress in ZnO nanowireJournal of Raman Spectroscopy, 2011
- Preparation of Graphitic OxideJournal of the American Chemical Society, 1958