SnSe nanoplates swallowed in carbon nanofibers as the self-standing anode for lithium-ion and sodium batteries with enhanced performance. (8th February 2023)

• Record Type: Journal Article
• Authors: Yin, Hong; Li, Huaiyu; Zhao, Han; Gan, Zongsong; Hou, Zhaohui; Li, Chong; Zhu, Ming-Qiang
• Is Part Of: International journal of hydrogen energy. Volume 48:Number 12(2023)
• Page Start: 4789
• Page End: 4799
• Publication Date: 2023-02-08
• Subjects: SnSe nanoplates -- 3D conductive network -- Electrospinning -- Self-standing -- Electrochemical properties; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2022.10.189
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: SnSe is a promising anode candidate for both lithium-ion and sodium batteries (LIBs and SIBs) with high theoretic capacities, low toxicity and abundant resources. However, it suffers a short cycling life due to the poor conductivity and volume expansion when used as anode material. To improve its Li/Na storage properties, SnSe nanoplates are encapsulated in carbon nanofibers formation a 3D conductive network via a moderate electrostatic spinning and heat treatment. The modified SnSe anode exhibits textile-like feature with extensively mechanical flexibility, and was directly used as anode without and additives for both LIBs and SIBs. It delivers an excellent cycle performance with a high capacity (598 mA h g −1 after 400 cycles for LIBs and 240 mA h g −1 after 250 cycles for SIBs), which are modify enhanced comparing with reported works. The effective strategy can provide an available approach to build self-standing and flexible architecture, which is beneficial for the design of electrode materials for SIBs. Highlights: The SnSe@CNF is used as binder-free anode for LIBs and SIBs. The SnSe@CNF anode can deliver a long cycling life for flexible LIBs and SIBs. The superior performance is the high conductivity and restraining volume.