Abstract—Communication performance of a wireless Li (lithium)-ion battery system was evaluated. The evaluation results showed that in the metal chassis storing the battery modules, the reliability of wireless communication is degraded under the influence of reflection of radio waves. Moreover, it was revealed that the characteristic of radiowave propagation in the battery chassis becomes a Rayleigh distribution. We evaluated the communication performance by using ZigBee radio modems, and we indicated that a packet-error rate of 1.33×10^-5 can be achieved by choosing the frequency channel appropriately, even though the radio modem is inside of closed metal chassis.

Index Terms—Li-ion battery, battery system, wireless communication, monitoring, radio propagation

Cite: Takashi Takeuchi and Takahide Terada, "Evaluation of Wireless Communication Performance in a Li-ion Battery System," Jounal of Automation and Control Engineering, Vol. 2, No. 1, pp. 26-30, March, 2014. doi: 10.12720/joace.2.1.26-30