Submicron silica as high−capacity lithium storage material with superior cycling performance
Highlights: • The electrochemical performance of SiO{sub 2} is strongly associated with ball milling. • Submicron silica show superior cycling performance for lithium storage. • Mechanism of electrochemical performance of SiO{sub 2} depended on milling was discussed. - Abstract: Submicron silica (SiO{sub 2}) is prepared via directly milling bulk SiO{sub 2}, which is the major constituent of the abundant sand on the earth. The electrochemical lithium storage performance of SiO{sub 2} is found to be strongly associated with the ball milling treatment. The reversible capacity of SiO{sub 2} gradually increases from 163 to 803 mAh g{sup −1} as the milling time is extended from 0 to 72 h. For the SiO{sub 2} milled for 24 h, it exhibits excellent cycling performance with a discharge capacity of 602 mAh g{sup −1} over 150 cycles, corresponding to the capacity retention of 99.8% relative to the 2nd cycle. The different particle sizes distribution and electrochemical activity of SiO{sub 2} are responsible for the effect of ball milling on its electrochemical lithium storage performance such as reversible capacity, cycling stability, electrode polarization and initial Coulombic efficiency.
- OSTI ID:
- 22730492
- Journal Information:
- Materials Research Bulletin, Vol. 96; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
Similar Records
New High-Performance Pb-Based Nanocomposite Anode Enabled by Wide-Range Pb Redox and Zintl Phase Transition
Facile hydrothermal method synthesis of coralline-like Li{sub 1.2}Mn{sub 0.54}Ni{sub 0.13}Co{sub 0.13}O{sub 2} hierarchical architectures as superior cathode materials for lithium-ion batteries