Effect of the aging voltage on the electrical properties in a LTO battery capacitor
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LTO presents the “zero-strain” volume structure and the higher lithiation/delithiation working voltage (about 1.55 V vs. Li+/Li). To improve the LTO battery, formation of artificial SEI layer is one of the strategies. We applied the charging voltage 2.7V, 3.4 V, 3.5 V, and 3.6 V, on the aging step. We reveal that SEI layer is formed higher than 3.4 V in LCO/NCM//Li4Ti5O12batteries. As this layer makes lithium physisorption (physical adsorption), and capacity, resistance is increased. As changingthe aging voltage, electrochemical properties are changed. It indicates that applied aging charge voltage affects the electricalperformance of battery capacitor.
Abstract
LTO presents the “zero-strain” volume structure and the higher lithiation/delithiation working voltage (about 1.55 V vs. Li+/Li). To improve the LTO battery, formation of artificial SEI layer is one of the strategies. We applied the charging voltage 2.7V, 3.4 V, 3.5 V, and 3.6 V, on the aging step. We reveal that SEI layer is formed higher than 3.4 V in LCO/NCM//Li4Ti5O12batteries. As this layer makes lithium physisorption (physical adsorption), and capacity, resistance is increased. As changingthe aging voltage, electrochemical properties are changed. It indicates that applied aging charge voltage affects the electricalperformance of battery capacitor.
참고문헌 (19)
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