Experimental Study of Thermal Characteristics of Lithium-Ion Batteries

Abstract

The work gives a detailed description of lithium-ion batteries and methods of their use in technical devices of various purposes. The basic technical characteristics of the main types of industrial lithium batteries are presented and it is shown that lithium-iron-phosphate, lithium-titanate and lithium-carbon-titanate batteries are currently used in autonomous electric vehicles. The work also analyzed the results of bench tests of lithium-titanate and lithium-carbon-titanate batteries in terms of their temperature state at different values of external temperature and different levels of charge-discharge currents. The results of the tests showed the limit values of the battery heating temperature, as well as a change in the charging process at sub-zero ambient temperatures, which requires the necessary measures - cooling or heating - when assembling the traction battery from the tested elements. Bibl. 8, figure, table 12.