Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 2, 2019
Previous Article Next Article

Crystallized lithium titanate nanosheets prepared via spark plasma sintering for ultra-high rate lithium ion batteries

Author affiliations

Abstract

This paper shows that a lithium titanate (LTO) nanosheet material is successfully prepared by the spark plasma sintering (SPS) method at 500 °C within only 5 minutes, using its nanosheet precursor synthesized by hydrothermal reaction. The pulsed electric field induces the phase transition of the precursor at much lower temperature and in a much shorter time during the SPS process. Moreover, the thin layer morphology of the LTO precursor can be well maintained after SPS treatment, which has been changed into nanoparticles during the conventional solid state calcination. The crystalline LTO nanosheets prepared by SPS deliver high specific capacities of 151.2 mA h g−1 and 147.2 mA h g−1 at high current densities of 8 A g−1 (45.7C) and 10 A g−1 (57.1C), respectively. Moreover, the LTO nanosheets display stable capacity retentions of 73.9% and 75.6% after 1000 cycles at 1 A g−1 and 2 A g−1, respectively.

Graphical abstract: Crystallized lithium titanate nanosheets prepared via spark plasma sintering for ultra-high rate lithium ion batteries

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 Nov 2018, accepted on 30 Nov 2018 and first published on 01 Dec 2018


Article type: Communication
DOI: 10.1039/C8TA10680K
Citation: J. Mater. Chem. A, 2019,7, 455-460

  •   Request permissions

    Crystallized lithium titanate nanosheets prepared via spark plasma sintering for ultra-high rate lithium ion batteries

    J. Li, T. Zhang, C. Han, H. Li, R. Shi, J. Tong and B. Li, J. Mater. Chem. A, 2019, 7, 455
    DOI: 10.1039/C8TA10680K

Search articles by author

Spotlight

Advertisements