Next Article in Journal
Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System
Next Article in Special Issue
Modified Activated Graphene-Based Carbon Electrodes from Rice Husk for Supercapacitor Applications
Previous Article in Journal
An Energy Efficient Message Dissemination Scheme in Platoon-Based Driving Systems
Previous Article in Special Issue
Nickel Salicylaldoxime-Based Coordination Polymer as a Cathode for Lithium-Ion Batteries
Open AccessFeature PaperArticle

Effect of Carbon Additives on the Electrochemical Performance of Li4Ti5O12/C Anodes

1
Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninsky prospekt 31, 119991 Moscow, Russia
2
Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
3
Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky prospekt 31-4, 119071 Moscow, Russia
4
Prokhorov General Physics Institute of the Russian Academy of Sciences, 38, Vavilov Str., 119991 Moscow, Russia
5
Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), 119049 Moscow, Russia
*
Author to whom correspondence should be addressed.
Energies 2020, 13(15), 3941; https://doi.org/10.3390/en13153941
Received: 26 June 2020 / Revised: 25 July 2020 / Accepted: 29 July 2020 / Published: 1 August 2020
(This article belongs to the Special Issue Advanced Nanomaterials for Li- and Na-Ion Batteries)
The Li4Ti5O12/C composites were prepared by a hydrothermal method with in situ carbon addition. The influence of the morphology and content of various carbon materials (conductive carbon black, mesoporous carbon G_157M, and carbon replicas) on the electrochemical performance of the Li4Ti5O12/C composites was investigated. The obtained composites were characterized using X-ray diffraction, scanning electron microsopy, high-resolution transmission electron microscopy, thermogravimetric analysis, Raman spectroscopy, and N2 sorption-desorption isotherms. Morphology of the Li4Ti5O12/C composites depends on the carbon matrix used, while both morphology and the amount of carbon material have a great impact on the rate capability and cycling stability of the obtained composites. At low current densities, the Li4Ti5O12/C composite with 5 wt.% G_157M exhibits the highest discharge capacity, while at high charge-discharge rates, the Li4Ti5O12/carbon black composites show the best electrochemical performance. Thus, at ~0.1C, 5C, and 18C rates, the discharge capacities of the obtained Li4Ti5O12/C composites are 175, 120, and 70 mAh/g for G_157M, 165, 126, and 78 mAh/g for carbon replicas, and 173, 128, and 93 mAh/g for carbon black. After 100 cycles, their capacity retention is no less than 95%, suggesting their promising application perspective. View Full-Text
Keywords: lithium ion battery; Li4Ti5O12; mesoporous carbon; carbon replica lithium ion battery; Li4Ti5O12; mesoporous carbon; carbon replica
Show Figures

Graphical abstract

MDPI and ACS Style

Stenina, I.; Shaydullin, R.; Kulova, T.; Kuz’mina, A.; Tabachkova, N.; Yaroslavtsev, A. Effect of Carbon Additives on the Electrochemical Performance of Li4Ti5O12/C Anodes. Energies 2020, 13, 3941.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop