Vibration-based performance analysis between lithium-ion and lithium-polymer batteries

Abstract

This study aims to determine whether lithium-ion or lithium-polymer batteries are better suited for usage in applications with high levels of vibration, such as electric vehicles, by examining their responses to vibration. Both types of batteries were subjected to vibration testing according to the International Electrotechnical Commission (IEC) 62660-2 standard for a full 24 hours at a frequency range of 10-2000 Hz. Both types of cells were put through a 10-cycle cycling test before and after vibrations, during which they were charged and discharged repeatedly. According to the findings, both types of cells display a rise in Nyquist impedance and a drop in cell capacity. However, these effects were more pronounced in lithium-ion batteries than in lithium-polymer batteries. These results show that lithium-polymer batteries may be more robust to vibrations than lithium-ion batteries, which might have substantial consequences for selecting viable battery types for use in electric vehicles. Overall, the results of this research offer significant new insights into the performance characteristics of these two different types of batteries, and they contribute to the body of information already present in the area of electric vehicle battery technology.