Lithium battery management system and method

The invention relates to the field of battery management systems, in particular to a lithium battery management system and method. Comprising a master control unit, a slave control unit, a current sensor and a display terminal. The master control unit and the slave control unit are connected by adopting a master-slave distributed redundant bus structure, and the master control unit is connected with the display terminal and the current sensor; the master control unit is used for performing CAN communication with the slave control unit and displaying data on the display terminal after data processing; the slave control unit is based on platform design and is responsible for voltage and temperature acquisition and internal communication and external communication. The current sensor monitors the size and direction of the running current; and the display terminal is used for displaying current, voltage, temperature and fault information and modifying system parameters. The lithium battery management system is st