Dual BMS for battery management and emergency mode

Secondary batteries are different from the batteries that have been used in recent years, and are easily reusable and have a slight advantage. However, secondary batteries can generate high heat and become dangerous under certain conditions. An additional system is required to use the battery safely and for a long time. The system is called BMS and it detects the battery condition and stops operation before the battery shows any heat or swelling. BMS is used by one MCU and one protection circuit, and the battery can operate stably. If the MCU or protection circuit fails, the battery will operate at risk. We propose to use Dual-BMS to further strengthen stability assurance. When one BMS breaks down, the proposed dual-BMS hands over the command authority, protects the battery, delivers one broken BMS to the user and increases stability.