The rapid development of electric vehicles, energy storage systems and other fields, power Soft Pack lithium battery as an important energy storage unit, the design of modules is very important. This article will discuss the design points of power Soft Pack lithium battery module from many aspects, in order to provide references for practitioners in related fields.

1. Cell selection and layout

first of all, one of the key design points of power Soft Pack lithium battery module is the selection and layout of cell. In the selection of cell, factors such as energy density, cycle life, safety and cost of cell need to be considered. In addition, for the layout of cell, it is necessary to make rational use of space to maximize the energy density and ensure the heat dissipation and connection reliability between cell.

2. Module casing design

module casing design has an important influence on the safety and stability of power Soft Pack lithium battery. The following key points need to be considered in shell design:

• material Selection: Select lightweight, high temperature resistant and good insulation materials to ensure the safety and durability of the module.
• Structural design: a reasonable structure is designed to improve the vibration resistance and compression resistance of the module and reduce the influence of external impact on the battery.
• Sealing design: ensure that module casing has good sealing, prevent electrolyte leakage and reduce safety risks.

3. Temperature control system design

the temperature management of power Soft Pack lithium battery is very important for battery life and safety. Therefore, module design needs to consider the design points of temperature control system:

• heat dissipation design: design an effective heat dissipation system to reduce the working temperature of the battery and prolong the battery life.
• Temperature Monitoring: integrate temperature sensors to monitor the battery temperature in real time and take timely measures to avoid overheating or supercooling.
• Temperature control: according to the temperature monitoring results, the cooling system is automatically controlled to keep the battery in a safe working temperature range.

4. Security Protection System design

the design of power Soft Pack lithium battery module needs to fully consider the design of safety protection system to ensure that the battery can take protective measures in time under abnormal circumstances to avoid the occurrence of safety accidents. The key design points of the security protection system include:

• overcharge and overdischarge protection: design overcharge and overdischarge protection functions to avoid battery damage or safety accidents.
• Short circuit protection: design short circuit protection function to prevent safety problems caused by short circuit.
• Current overload protection: Design current overload protection function to avoid battery damage in abnormal working condition.

The design points of power Soft Pack lithium battery module involve cell selection and layout, module casing design, temperature control system design, safety protection system design and other aspects. In the future, with the continuous progress of technology and the continuous change of application requirements, the design of power Soft Pack lithium battery module will pay more attention to the improvement of safety, reliability and energy density to meet the requirements of electric vehicles, energy storage systems and other fields require high-performance and high-safety batteries.