Liquid metal battery（LMB） is the very promising power storage battery due to such features as large capacity

large charge and discharge current and long service life.In this paper

LMB’ s basic characteristic is analyzed by experiment and its basic feature is analyzed

finding that the LMB has the feature of low operating voltage.According to the feature and comparison of different equalization circuit

the inductance is used as energy transfer media and a kind of equalization circuit proposal meeting the series connection of the liquid metal battery is designed.The simulation model for this circuit is built and the influence of such parameters as inductance

battery voltage and transfer time on equalization is analyzed and the parameters are optimized.The actual circuit with ten LMBs in series is constructed and the equalization circuit is tested.It is shown by the experiment result that the circuit can achieve battery equalization.The effectiveness of the design is proved

which lays a good foundation for the development of management system of subsequent battery.