Research summary of high frequency ripple of lithium battery

Abstract

High frequency ripple is a common electromagnetic phenomenon in power system, which is caused by the instantaneous switch of power electronic equipment. Nowadays, lithium batteries are widely used, and the high-frequency ripple generated will not only interfere with the power system, but also affect other electronic devices and sensors, greatly increasing the risk of use. This paper studies the high frequency ripple generated in the working circuit of lithium battery. Firstly, the generation and detection methods of high frequency ripple are summarized, and then the filtering circuit for processing high frequency ripple is summarized. In this paper, the high frequency ripple is systematically analyzed, which is helpful for more people to understand the high frequency ripple, solve its problems, expand the research ideas, and provide direction for future research.