Secondary Lithium Batteries for Vehicles

Abstract

The invention discloses a secondary lithium battery for vehicles, comprising a power storage unit, a charge / discharge relay, a microprocessor, a control module and an electrode terminal group, wherein the power storage unit includes a plurality of series / parallel connections The battery cell, the electrode terminal group includes a positive terminal and a negative terminal, the charging / discharging relay is electrically connected with the storage unit, and the charging / discharging relay is further electrically connected with the electrode terminal group. The DC conversion module and the electrical equipment of the automobile or locomotive are respectively coupled with the electrode terminal group, and the microprocessor is electrically connected with the power storage unit and the charging / discharging relay respectively. The microprocessor includes a charging circuit and a discharging circuit for detecting The voltage of the power storage unit and control the operation of the charging / discharging relay; the control module is electrically connected to the power storage unit and the microprocessor respectively, the control module is further electrically connected to the electrode terminal group, and the microprocessor controls the on / off of the control module .

Description

technical field [0001] The present invention relates to a starting battery of an automobile or a locomotive, more specifically, a secondary lithium battery for a vehicle. Background technique [0002] The power supply system of vehicles such as automobiles or locomotives is mainly composed of a generator, an AC / DC conversion module and a starting battery. The input end of the AC / DC conversion module is electrically connected to the generator, and the output of the AC / DC conversion module The terminal is coupled with the electrode terminal of the starting battery, and the electrical equipment of the automobile or locomotive is coupled with the electrode terminal of the starting battery through the electric wire. [0003] The generator runs to generate alternating current, and the AC / DC conversion module converts the alternating current into direct current to supply the power storage of the starting battery and the power consumption demand of the electrical equipment. The ope...

AI Technical Summary

Problems solved by technology

[0008] However, in actual use, it is found that in some cases, when the secondary lithium battery returns to a full state of storage, the relay is disconnected, and the storage unit stops charging / discharging, the AC / DC conversion module is also disconnected for external discharge. , although the generator keeps running, the electrical equipment cannot effectively obtain the power supply from the generator. After a period of time, the AC / DC conversion module is connected again due to the power demand of the electrical equipment, and resumes external discharge. The equipment gets the power supply from the generator again. Although the aforementioned AC / DC conversion module is disconnected for a very short time, it causes a short-term power shortage during the driving of the car or locomotive, which easily reduces the service life of the electrical equipment. , and during this short power shortage time, the power steering wheel that relies on electric actuation cannot work effectively, which may easily cause safety accidents while the car is running

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