NDLI: Effect of different carbon sources on the electrochemical properties of rod-like LiMnPO<sub>4</sub>

Content Provider	Royal Society of Chemistry (RSC)
Author	Xu, Huayun Qian, Yitai Liu, Jing Chen, Liang Li, Li-e Yang, Jian
Copyright Year	2013
Abstract	Olivine structured LiMnPO4 nanorods as an emerging cathode material for lithium ion batteries have recently triggered intensive interest. Herein, LiMnPO4 nanorods have been synthesized via a solvothermal route and then coated with a carbon layer from different carbon sources to improve their electrochemical performance. The LiMnPO4–C nanocomposite obtained from beta-cyclodextrin as the carbon source showed a reversible capacity of 153.4 mA h g−1 at a rate of 0.1 C and maintained it at 120 mA h g−1 after 50 cycles, which is much better than that obtained from ascorbic acid, citric acid, glucose and sucrose. This result can be attributed to the smaller electrode impedance in the nanocomposite obtained from beta-cyclodextrin, based on EIS measurements. Correlated to the molecule structure, it is believed that larger molecules with more oxygenous groups are beneficial to their uniform adsorption on the electrodes and then produce a better electron-conductive carbon layer after calcinations. This result would be very helpful in future work related to carbon coating on other electrodes.
Starting Page	6847
Ending Page	6852
Page Count	6
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	3
Issue Number	19
Journal	RSC Advances
DOI	10.1039/c3ra22862b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Olivine Electrode Sucrose Adsorption Electrochemistry Ion Nanocomposite Glucose Carbon EIS Electrical impedance
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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