Browse > Article
http://dx.doi.org/10.5370/JEET.2018.13.1.413

The Electric Properties of Surface Coating with CePO4 and M3(PO4)2 (M=Mg, Zn) on Li4Ti5O12 for Energy Storage Capacitor  

Lee, Jong-Kyu (1 R&D Center, Samwha capacitor)
Yoon, Jung-Rag (1 R&D Center, Samwha capacitor)
Publication Information
Journal of Electrical Engineering and Technology / v.13, no.1, 2018 , pp. 413-417 More about this Journal
Abstract
The $Li_4Ti_5O_{12}$ of anode material for the hybrid capacitor was coated using $CePO_4$, $M_3(PO_4)_2$ (M=Mg, Zn). The capacitance of phosphate coated $Li_4Ti_5O_{12}$ was found to be lower than that of $Li_4Ti_5O_{12}$, whereas the equivalent series resistance was higher than that of $Li_4Ti_5O_{12}$. With an increase in cycle number, the base of cylindrical cell exhibited swelling due to gas generated from the reaction between $Li_4Ti_5O_{12}$ and electrolyte. The swelling cycle number of phosphate coated $Li_4Ti_5O_{12}$ was higher than that of $Li_4Ti_5O_{12}$ due to improvement in electrochemical stability. Based on the results, it is proposed that phosphate coating can be employed as a barrier layer to control the gassing reaction by isolating the $Li_4Ti_5O_{12}$ particle from electrolyte solution.
Keywords
$Li_4Ti_5O_{12}$; surface coating; Hybrid capacitor; Gas generation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Min-Geun Choi, Soo-Bin Kang, Jung Rag Yoon, Byung Gwan Lee, Dae-Yong Jeong, "The Surface Modification of Electrode with Solid Electrolyte Interphase for Hybrid Supercapacitor," Journal of Electrical Engineering and Technology, vol. 10, no. 3, pp. 1102-1106, May 2015.   DOI
2 Lee, Jong-Kyu, Lee, Byung-Gwan, Yoon, Jung-Rag, "Effect of Carbon Coating on $Li_4Ti_5O_{12}$ of Anode Material for Hybrid Capacitor," Journal of Nanoscience and Nanotechnology, vol. 15, no. 11, pp. 8820-8824(5), November 2015.   DOI
3 H.G. Jung, J. Kim, B. Scrosati, Y.K. Sun, "Micronsized, carbon-coated $Li_4Ti_5O_{12}$ as high power anode material for advanced lithium batteries," J. Power Sources, vol. 196, no. 18, pp.7763-7766, September 2011.   DOI
4 L. Cheng, X.L. Li, H.J. Liu, H.M. Xiong, P.W. Zhang, Y.Y. Xia, "Carbon-coated $Li_4Ti_5O_{12}$ as a high rate electrode material for Li-ion intercalation," J. Electrochem. Soc., vol. 154, no. 7, pp. A692-A697, 2007.   DOI
5 Byung gwan Lee, Jung Rag Yoon, "Synthesis of high-performance $Li_4Ti_5O_{12}$ and its application to the asymmetric hybrid capacitor," Electronic Materials Letters, vol. 9, no. 6, pp. 871-873, November 2013.   DOI
6 S.H. Lee, H.K. Kim, Y.S. Yun, J.R. Yoon, S.G. Lee, Y.H. Lee, "A novel high-performance cylindrical hybrid supercapacitor with $Li4-xNaxTi_5O_{12}$/activated carbon electrodes," Int. Hydrogen Energy, vol. 39, no. 29, pp. 16569-16575, 2014.   DOI
7 G.N. Zhu, C.X. Wang, Y.Y. Xia, "A comprehensive study of effects of carbon coating on $Li_4Ti_5O_{12}$ anode material for lithium-ion batteries," J. Electrochem. Soc., vol. 158, no. 2, pp. A102-A109, 2011.   DOI
8 A. Guerfi, S. Sevigny, M. Lagace, P. Hovington, K. Kinoshita, K. Zaghib, "Nanoparticle $Li_4Ti_5O_{12}$ spinel as electrode for electrochemical generators," J. Power Sources, vol. 119-121, pp. 88-94, 2003.   DOI
9 S.H. Lee, S.G. Lee, J.R. Yoon, H.K. Kim, "Novel performance of ultrathin $AlPO_4$ coated $H_2Ti_{12}O_{25}$ exceeding $Li_4Ti_5O_{12}$ in cylindrical hybrid supercapacitor," J. Power Sources, vol. 273, pp. 839-843, Jan. 2015.   DOI
10 Y.B. He, F. Ning, B. Li, Q.S. Song, W. Lv, H. Du, D. Zhai, F. Su, Q.H. Yang, F. Kang, "Carbon coating to suppress the reduction decomposition of electrolyte on the $Li_4Ti_5O_{12}$ electrode," J. Power Sources. Vol. 202, pp. 253-261, March 2012.   DOI
11 Lee, Jong-Kyu; Yoon, Jung-Rag, "Effects of $Li_4Ti_5O_{12}$ Anode Electrode Thickness on the Cell Balancing of Hybrid Super Capacitor," Journal of Nanoscience and Nanotechnology, vol. 15, no. 3, pp. 2586-2589(4), 2015.   DOI
12 Byung gwan Lee, Jung Rag Yoon "Preparation and Characteristics of $Li_4Ti_5O_{12}$ Anode Material for Hybrid Supercapacitor," Journal of Electrical Engineering and Technology, vol. 7, no. 2, pp. 207-211, March 2012.   DOI