Battery state notifying unit, bus bar module, battery pack, and battery state monitoring system

摘要

A battery state notifying unit, a bus bar module, a battery pack and a battery state monitoring system are provided, and allow for reduction of the number of electric wires guided to a unit monitoring a battery state, and the signal voltage applied to the electric wires. A battery power source system is provided with a battery state notifying unit corresponding to each battery pack. The battery state notifying unit generates battery state information indicating the electrode voltage and temperature of the battery cells 21, and transmits the battery state information to the battery state monitoring unit. The battery state information is based on a cell voltage signal corresponding to electrode voltage outputted from terminal fittings of the battery pack, and a cell temperature signal corresponding to voltage outputted from the temperature sensor.