C/Sn deposition on a helical carbon nanofiber matrix as a high performance anode for lithium-ion batteries. (19th April 2022)

• Record Type: Journal Article
• Authors: Chen, Ge; Jin, Yongzhong; Su, Wei; Li, Yuming; Zhang, Wenjun; Qing, Ting
• Is Part Of: New journal of chemistry. Volume 46:Number 18(2022)
• Page Start: 8765
• Page End: 8772
• Publication Date: 2022-04-19
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d2nj00206j
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : C/Sn/HCNF composites were successfully prepared by solution phase synthesis and carbon thermal reduction. Within the hybrid composite, the HCNFs, Sn and carbon layer show a synergistic effect in improving coulombic efficiency and electrical capacity. Abstract : A simple method for the preparation of carbon/Sn/Helical carbon nanofiber (C/Sn/HCNF) composite by a solution phase synthesis and carbon thermal reduction is introduced, and the composite exhibits good electrochemical performance as an anode for lithium-ion batteries (LIBs). Sn nanoparticles (about 10–15 nm) are grafted onto the surface of HCNFs and coated by a carbon film with a thickness of 10–20 nm. C/Sn/HCNF anode materials can retain a capacity of 610.3 mA h g −1 after 200 cycles at a current density of 200 mA g −1, which is significantly better than 87.2 mA h g −1 by Sn and 241.2 mA h g −1 by Sn/HCNFs at the same rate. The excellent performance and simple preparation method enable the C/Sn/HCNF composite as a potential anode material for LIB application.