Battery management system

摘要

The present invention relates to a battery management system for a battery module comprising a plurality of cells connected to one another which each have a positive and a negative terminal. The invention is in particular concerned with a battery management system which is used with accumulators especially lithium ion cells for forming a traction battery or a traction battery module for vehicles with an electrical drive drain. Such battery modules can for example be used in electrical vehicles, hybrid vehicles with combustion engines or hybrid vehicles with fuel cells, can however also be used for other purposes, for example for stationary applications or for small traction applications, such as for example in a wheelchair.

主权项

1. A battery management system for a battery module having a plurality of battery cells which each have positive and negative terminals wherein the battery management system is arranged on a circuit board and the circuit board has a plurality of electrical contacts which can be brought into direct contact with conducting elements of the battery cells, with the conducting elements being formed by at least one of the terminals of the battery cells of the battery module and by conducting spacer elements which are provided between adjacent terminals of the battery cells, wherein circuits are arranged on the circuit board for the monitoring of at least one of temperatures of the battery cells and voltages of the battery cells, and wherein the individual circuits are arranged between the said contacts of the circuit board to the individual battery cells in the region of the circuit board between the terminals and are arranged between the conducting spacer elements of the battery cells.