A study on LiFePO 4 /graphite cells with built-in Li 4 Ti 5 O 12 reference electrodes

In this work, based on the superior electrochemical stability of Li Ti O (LTO) electrodes, LiFePO (LFP)/graphite cells with built-in LTO electrodes as reference electrodes were designed and fabricated. The characteristics of the LTO reference electrodes in the fabricated lithium-ion cells were measu...

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Veröffentlicht in:RSC advances 2018-05, Vol.8 (33), p.18597-18603
Hauptverfasser: Yi, Shouzhong, Wang, Bo, Chen, Ziang, Wang, Rui, Wang, Dianlong
Format: Artikel
Sprache:eng
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Zusammenfassung:In this work, based on the superior electrochemical stability of Li Ti O (LTO) electrodes, LiFePO (LFP)/graphite cells with built-in LTO electrodes as reference electrodes were designed and fabricated. The characteristics of the LTO reference electrodes in the fabricated lithium-ion cells were measured and discussed. The experimental data demonstrated that the LTO built-in reference electrodes were simple to prepare and were feasible options for long-term monitoring of the development of potentials and other electrochemical parameters, such as the Li diffusion coefficient ( ) and electrochemical impedance spectroscopy (EIS) information, for both anodes and cathodes. Moreover, it is believed that the adoption of LTO as a reference electrode could be of great significance for long-term monitoring of the charge and discharge behavior of individual electrodes in other kinds of lithium-ion cells.
ISSN:2046-2069
2046-2069
DOI:10.1039/C8RA03062F