Startseite Naturwissenschaften Spray-drying synthesis and characterization of Li4Ti5O12 anode material for lithium ion batteries
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Spray-drying synthesis and characterization of Li4Ti5O12 anode material for lithium ion batteries

  • Chunyang Li , Guojun Li EMAIL logo , Sijing Wen und Ruiming Ren
Veröffentlicht/Copyright: 16. Februar 2017
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Abstract

Spherical and nanostructured Li4Ti5O12 powders were successfully prepared through spray-drying method. Li4Ti5O12 began to be formed after calcining the spray-dried amorphous precursor at approximately 350 °C, and a single phase was obtained at 750 °C. Spherical and porous Li4Ti5O12 particles consisting of polyhedral particles assembled from 21–45 nm grains and 4–24 nm pores. An about 1 nm-thick amorphous layer can also be observed on the surface of the nano-sized grains. The Li4Ti5O12 prepared at 750 °C exhibits the initial discharge capacities of 218 and 211 mAh g−1 and a high retention of 99.90 % and 99.67 % for 50 times at a rate of 1 C or 2 C in the voltage range of 1.0–2.5 V, respectively.

Funding statement: The work was financially supported by Department of Education of Liaoning Province of China.

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Received: 2016-3-28
Revised: 2016-5-21
Accepted: 2016-6-6
Published Online: 2017-2-16
Published in Print: 2017-1-1

© 2017 by Walter De Gruyter GmbH

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