Articles
  • Effects of LiNi0.5Mn1.5O4 cathode thickness on the LiNi0.5Mn1.5O4/Li4Ti5O12 lithium ion batteries
  • Seung-Hwan Leea, Jong-Kyu Leeb, Dong-Hyun Baekc and Jung-Rag Yoonb,*
  • Battery Research Center, Korea Electrotechnology Research Institute, Changwon, South Korea bR&D Center, Samwha Capacitor, Yongin, South Korea cDepartment of Fire & Disaster Protection Engineering, Gachon University, South Korea
Abstract
The lithium ion batteries based on LiNi0.5Mn1.5O4 cathode and Li4Ti5O12 anode are prepared by controlling the cathode thickness to optimize cell balancing. The relationship between N/P ratios (0.58, 0.83 and 1.07) and electrochemical performances are investigated. The capacity, rate performance are proportional to the cathode thickness while cycle performance decrease with increasing cathode thickness. It can be explained by high cycling stability of Li4Ti5O12 anode compared to LiNi0.5Mn1.5O4 cathode. These results clearly indicate that N/P ratio affects the electrochemical performances of lithium ion batteries.

Keywords: Lithium ion batteries, LiNi0.5Mn1.5O4 cathode, Li4Ti5O12 anode, N/P ratios, Electrochemical performances

This Article

  • 2019; 20(1): 69-72

    Published on Feb 28, 2019