Monodisperse tin nanoparticles and hollow tin oxide nanospheres as anode materials for high performance lithium ion batteries. Issue 2 (3rd January 2019)

• Record Type: Journal Article
• Authors: Zhao, Xixia; Wang, Wenhui; Hou, Zhen; Yu, Yikang; Di, Qian; Wu, Xiaotong; Wei, Guijuan; Quan, Zewei; Zhang, Jun
• Is Part Of: Inorganic chemistry frontiers. Volume 6:Issue 2(2019)
• Page Start: 473
• Page End: 476
• Publication Date: 2019-01-03
• Subjects: Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c8qi01143e
• Languages: English
• ISSNs: 2052-1553

Abstract

Abstract : Monodisperse Sn nanoparticles and hollow/amorphous SnO x nanospheres are prepared via a facile colloidal method, and they exhibit good electrochemical performances as anode materials in lithium ion batteries. Abstract : Sn-Based materials are considered as promising anode materials for lithium ion batteries due to their high theoretical capacities; however, aggregation of electrochemically active particles and pulverization resulting from huge volume changes during alloying/dealloying severely limit their performance. To solve these problems, nanosized and hollow structures have been proposed. Herein, uniform solid Sn nanoparticles and hollow/amorphous SnO x nanospheres are prepared accordingly and their electrochemical performances as anode materials in lithium ion batteries have been evaluated. Uniform solid Sn nanoparticles deliver a capacity of 416.4 mA h g −1 for 400 cycles at a current of 500 mA g −1, corresponding to a high capacity retention of 81.1%. Furthermore, hollow/amorphous SnO x nanospheres show a high capacity retention of 81.3% for 400 cycles at a current of 500 mA g −1 and exhibit a good rate capability (retains 58.0% of the capacity at 1000 mA g −1 with respect to 100 mA g −1 ). It is believed that their good electrochemical performances mainly originate from their small sizes (<20 nm) and unique nanoarchitectures.