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Highly porous Li4Ti5O12 films as high-rate electrodes for fast lithium ion storage.
- Source :
-
Materials Technology . Aug-Sep2020, Vol. 35 Issue 9/10, p635-641. 7p. - Publication Year :
- 2020
-
Abstract
- Li4Ti5O12 (LTO) is one of the most promising high-power anodes for lithium ion batteries, but its large-current performance is still undermined due to relatively poor ion/electron transfer. In this work, we report a powerful hydrothermal method for fabrication of highly porous binder-free Li4Ti5O12 films, which show hierarchical structure composed of interconnected primary nanoparticles of 50-100 nm and secondary nanowalls. The lithium ion storage performance of designed Li4Ti5O12 films is thoroughly studied and demonstrated with excellent high-rate performance. The as-prepared Li4Ti5O12 films exhibit a high specific capacity of 146 mAh g-1 at the current density of 2 C. In view of good structural stability, a notable cycling stability is verified with a specific capacity of 130 mAh g-1 after 5000 cycles at 2 C. Our method provides a novel route for synthesis of other advanced anodes for application in the field of ultrafast energy storage. Highly porous binder-free Li4Ti5O12 films are synthesised via a hydrothermal method and exhibit a noticeable high-rate electrochemical performance as the anode of lithium ion batteries. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10667857
- Volume :
- 35
- Issue :
- 9/10
- Database :
- Academic Search Index
- Journal :
- Materials Technology
- Publication Type :
- Academic Journal
- Accession number :
- 145335606
- Full Text :
- https://doi.org/10.1080/10667857.2020.1734724