Implementing method of charging and discharging of power batteries

Abstract

The invention discloses an implement method of charging and discharging of power batteries. According to the method, an assembled battery pack is used; the assembled battery pack comprises a central current collection plate and power batteries; the power batteries are integrally combined into a whole body, so that positive output and negative output are arranged on two sides of the center; positive electrodes and negative electrodes of the power batteries are consistent in directions; the power batteries are connected with each other in series through a conductor which vertically penetrates through the central current collection plate; the positive electrodes and the negative electrodes of the adjacent other group of power batteries are consistent in directions; positive electrodes and negative electrodes of two adjacent groups of battery packs are connected with each other in parallel through conductors of positive electrode connection ends and negative electrode connection ends of the battery packs, so that lead wires of the positive electrodes and the negative electrodes are located at two sides of the whole central current collection plate. The invention innovatively provides acharging and discharging method capable of firstly connecting power batteries in series and then connecting the power batteries in parallel; the basic functions of charging and discharging can be achieved; the safety is greatly improved; the service life is greatly prolonged; the safety, the service life and the product quality are considered; when one battery pack is out of operation, the overall operation of other battery packs is not influenced; the power batteries of electric vehicles can safely and lastingly operate.

Description

technical field [0001] The invention relates to the technical field of battery equipment, in particular to a charging and discharging method for a power battery. Background technique [0002] An electric vehicle refers to a vehicle powered by a vehicle-mounted power supply, driven by a motor to drive the wheels, and conforming to the requirements of road traffic and safety regulations. It uses electricity stored in the battery to start. Sometimes 12 or 24 batteries are used to power the car, sometimes more. The composition of electric vehicles includes: electric drive and control systems, mechanical systems such as drive force transmission, and working devices to complete established tasks. The electric drive and control system is the core of electric vehicles, and it is also the biggest difference from internal combustion engine vehicles. The electric drive and control system consists of a drive motor, a power supply, and a speed control device for the motor. The rest o...

AI Technical Summary

Problems solved by technology

The connection method of battery packs in parallel first and then in series is adopted. Once a problem is found in a single battery pack in the series circuit (if a single cell has a micro-short circuit, it will affect the entire parallel battery pack), it will cause the entire series circuit to be disconnected. At this time , Electric vehicles will have serious consequences of breaking down, poor safety performance, and low service life

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