Confining SnSe nanobelts in 3D rGO aerogel for achieving stable and fast lithium storage. (July 2019)

• Record Type: Journal Article
• Authors: He, Cui; Wang, Cheng; Li, Feng; Wang, Xiaojun; Zhou, Yiming; Wu, Ping
• Is Part Of: Materials research bulletin. Volume 115(2019)
• Page Start: 80
• Page End: 87
• Publication Date: 2019-07
• Subjects: Tin selenide nanobelts -- rGO aerogel -- Selenization -- Anodes -- Li-ion batteries; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2019.03.013
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: Highlights: In situ selenization from Sn nanorods to SnSe nanobelts within aerogel framework. Uniformly confining SnSe nanobelts within reduced graphene oxide aerogel. Enhanced Li-storage performances in terms of capacity, cycle, and rate capabilities. Abstract: Tin selenide (SnSe) shows great potential as a promising anodic candidate of commercial graphite in Li-ion batteries (LIBs), but its practical application is hampered by huge volume change-induced poor cycle span. Herein, a gel-enabled selenization route has been developed for uniformly confining SnSe nanobelts within reduced graphene oxide aerogel (SnSe NB@rGO framework). These unique structural and compositional features make the SnSe NB@rGO framework electrode to show high revisable capacities (620 mA h g −1 after 200 cycles at 0.1 A g −1 ), high rate capability (626 and 551 mA h g −1 at 0.5 and 1 A g −1, respectively) and ultralong cycle span (412 mA h g −1 after 800 cycles at 1 A g −1 ).