Articles
  • Effect of the aging voltage on the electrical properties in a LTO battery capacitor

  • Won-Su Lee, Jong-Kyu Lee and Jung-Rag Yoon*

  • R&D Center, SAMWHA CAPACITOR, Yongin, South Korea

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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 2.7 V, 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//Li4Ti5O12 batteries. As this layer makes lithium physisorption (physical adsorption), and capacity, resistance is increased. As changing the aging voltage, electrochemical properties are changed. It indicates that applied aging charge voltage affects the electrical performance of battery capacitor


Keywords: Li-ion battery, Battery capacitor, Li4Ti5O12, Aging voltage

This Article

  • 2023; 24(4): 611-616

    Published on Aug 31, 2023

  • 10.36410/jcpr.2023.24.4.611
  • Received on Feb 2, 2023
  • Revised on Apr 25, 2023
  • Accepted on May 24, 2023

Correspondence to

  • Jung-Rag Yoon

  • R&D Center, SAMWHA CAPACITOR, Yongin, South Korea
    Tel : +82-10-6805-8134

  • E-mail: yoonjungrag@samwha.com