Scientific paper ID 895 : 2013/3

A short analysis of used traction batteries in electric vehicles. Below are the advantages and disadvantages of lithium-ion batteries to lead-acid batteries are still the most commonly used batteries, especially for electric vehicles. Proper electrical and thermal control of a lithium-ion battery consisting of many cells is necessary. During operation, the differences in pressure and temperature in the cells may result in an electrical imbalance of the cell to the cell and cause a decline in the capacity of the entire battery of about 25%. To prevent this imbalance, it is necessary to use a control system of the battery (BMS). Shown is the effect of the two main types - active and passive management system lithium-ion battery, by analyzing their advantages and disadvantages. Conclusions are made for their use in EV / HEV.