Nano/micrometer porous conductive network structure Li4Ti5O12@C/CNT microspheres with enhanced sodium-storage capability as an anode material. Issue 41 (21st September 2022)

• Record Type: Journal Article
• Authors: Zhu, Guozhen; Yu, Linhe; Yang, Qihao; Che, Renchao
• Is Part Of: RSC advances. Volume 12:Issue 41(2022)
• Page Start: 26782
• Page End: 26788
• Publication Date: 2022-09-21
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d2ra04977e
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Li4 Ti5 O12 @C/CNT microspheres were prepared by a facile spray drying method, which exhibited long cycling stability (85.45 mA h g −1 after 500 cycles at 500 mA g −1 ) and excellent rate capability (61.16 mA h g −1 after 10 cycles at 1000 mA g −1 ). Abstract : Li4 Ti5 O12 @C/CNT microspheres, wherein CNTs were firmly anchored to Li4 Ti5 O12 @C nanoparticles, were prepared via a facile spray drying method and subsequently annealed in an argon atmosphere, exhibiting long cycling stability (charge/discharge capacities of 85.45/86.18 mA h g −1 after 500 cycles at 500 mA g −1 ) and excellent rate capability (charge capacity of 61.16 mA h g −1 after 10 cycles at 1000 mA g −1 ). The special spherical structure design is not only beneficial to improving the structural stability and reaction kinetics of the electrode materials during the long-term extraction–insertion of sodium ions but also supplies numerous interfacial sites to store more sodium ions.