Temperature controlled parallel balancing

摘要

A method of controlling current in a parallel battery systems includes providing at least two parallel connected batteries, each said battery having an internal resistance and dissipating heat while operating; during operation, measuring at least the temperature and current of each individual battery; and providing instructions to a temperature control system having a temperature control module coupled with each said battery for individually cooling each said battery to adjust temperature of at least one battery in order to maintain the current at a target value.

主权项

1. A system for control of current in a parallel battery system, comprising:
at least two parallel connected batteries, each said battery having an internal resistance and dissipating heat while charging and/or discharging; a temperature controller having a temperature control module coupled with each said battery, each temperature control module capable of independent operation for individually controlling the temperature of each said battery; and a system controller for receiving information from each said battery related to condition and performance of each said battery and for providing an output signal to each temperature control module to independently adjust the temperature of each said battery, wherein the independent adjustment of the temperature of each said battery is selected to maintain a target current value for each battery and for the entire parallel battery system.