Research of lithium ion batteries for the operation of electric vehicles under different temperature conditions.

Annotation. The article examines the issue of evaluating the performance of high-voltage batteries in electrified vehicles at low temperatures. The method of choosing an electrochemical type of batteries for use in regions with a cold climate is presented. This technique includes conducting experiments to obtain charge-discharge characteristics of highvoltage batteries at normal and reduced temperatures, as well as their analytical review. After testing the method, data were obtained that describe the charge-discharge processes of batteries of various electrochemical types (LiMn2O4, LiCoO2, LiNiCoAlO2, ) depending on the ambient temperature. Given the discovery of new electrochemical types of batteries that have increased resistance to hypothermia. The proposed article allows you to evaluate their performance and fully use electric cars in regions with a cold climate. Key words: high-voltage battery, low temperatures, battery operation, battery capacity, electric vehicles. chemical type of battery, LiMn2O4, LiCoO2, LiNiCoAlO2, LiFePO4, discharge curve, load circuit, battery testing, selection method, block diagram.