Keywords: Lithium ion; Battery; Power supply processing; system planning

The power processing system for lithium-ion batteries in electric bicycles is a key system for monitoring and processing lithium-ion battery packs in electric bicycles. It can monitor the voltage, current, temperature and other parameters of the battery pack, control the charging and discharging process, and provide protection functions to ensure the safety and stability of the battery pack. Together, through communication functions, data exchange with the backend processing system can be completed, and real-time monitoring of the condition and charging/discharging status of the battery pack can be achieved. The key to planning the lithium-ion battery power processing system for electric bicycles lies in handling the battery pack, charge and discharge control, temperature treatment, protection methods, and other aspects, all of which have communication functions to achieve monitoring and long-distance control of the battery pack status. Through this plan, useful support will be provided for the safe and reliable operation of electric bicycles. Therefore, there is a need to further increase in-depth research and exploration on the power processing system of lithium-ion batteries for electric bicycles, in order to improve the service life, function, and safety of lithium-ion batteries and promote the development and application of battery technology. Meanwhile, technologies and equipment related to lithium-ion battery power processing systems also have enormous market potential and economic value. Therefore, the planning requirements for lithium-ion battery power processing systems consider multiple aspects such as charging processing, discharging processing, condition monitoring, protection methods, balance control, and defect diagnosis. By reasonable planning and control, the lifespan, energy power, and safety of lithium-ion batteries can be maximized.

Lithium ion batteries for electric bicycles are one of the most commonly used types of batteries, mainly composed of lithium-ion batteries. Lithium ion batteries are widely used in the field of electric vehicles due to their advantages of high energy density, lightweight, and environmental friendliness. A lithium-ion battery is composed of one or more lithium-ion battery cells, each cell consisting of a positive electrode, a negative electrode, an electrolyte, and a separator. Among them, the positive electrode is usually made of materials such as cobalt oxide, nickel oxide, manganese oxide, etc., and the negative electrode is usually made of graphite material. Electrolytes are usually organic solutions or solid polymer electrolytes used for ion transport. The diaphragm plays a role in blocking the positive and negative electrodes, avoiding short circuits. The working principle of lithium-ion batteries is that during the charging and discharging process, the lithium ions in the positive electrode are released from the positive electrode under the effect of the electrolyte, embedded in the negative electrode, and released from the negative electrode during the discharging process. They are then transported back to the positive electrode through the electrolyte ions, completing the conversion and storage of electrical energy.

3、 Planning Plan for Lithium ion Battery Power Processing System

<p vertical-align:baseline; text-indent:28px; color:#333333; background-color:#ffffff; "="" style="overflow-wrap: break-word;  font-family: "sans serif", tahoma, verdana, helvetica;  text-wrap-mode: wrap;  font-size: 14px; The planning requirements for this system include multiple aspects such as charging processing, discharging processing, condition monitoring, protection requirements, balance control, and defect diagnosis. By meeting these requirements, the lifespan, function, and safety of the battery can be improved. Based on the functional analysis of lithium-ion batteries, the planning for this lithium-ion battery power processing system includes voltage input module, battery power supply module, battery module, overvoltage discharge module, overdischarge disconnection module, reaction module, delay module, and charging defect detection module, as shown in Figure 1. The planning for this electric bicycle lithium-ion battery power processing system includes multiple modules that cooperate and work together to effectively process the battery pack.