System And Process For Maintaining Of Working Temperature Of Battery Cells For Starter Accumulators In Vehicles

摘要

A battery management system to maintain cell temperature in automobile starter batteries, containing lithium-ion; lithium-iron-phosphate battery cells mutually connected in series and parallel. Cell temperature management and measurement, and voltage measurement of each individual battery cell and for cell heating management units have a temperature sensor mounted directly on one of the cells. A predefined upper temperature value t2 and a lower temperature value t1 are used to determine whether to activate or deactivate heating of the battery cells. The working temperature of the battery cells is maintained by a heater in the form of foil pasted over the cells, or, in case of flat cells, by a heater in the form of flat foil placed in between the cells or by a shared heater of any form inside the casing.

主权项

1. The battery management system for maintaining the working temperature of the starter battery pack containing more battery cells (8) of the new generation of lithium-ion; lithium-iron-phosphate battery cells mutually connected in series and parallel, where the said system incorporates the unit (14) for cell temperature management and measurement, and voltage measurement of each individual battery cell (8) and for cell (8) heating management, which unit (14) in real time generates the temperature and voltage signals of the battery cells (8), characterized in that the unit (14) incorporates a temperature sensor mounted directly on one of the cells (8); the screen (12) displaying the cell temperature data (43), the total and/or individual cell voltage (44); furthermore, the said system contains data on the predefined upper temperature value t2 and the lower temperature value t1 and the push-button (34) for manual activation or deactivation of cell heating; where the working temperature of the battery cells (8) is kept up by a heater (28, 33) in the form of foil pasted over the cells, or, in case of flat cells (8) by a heater in the form of flat foil placed in between the cells (8) or by a shared heater of any form inside the casing (1).