What are the factors to consider when designing a lithium battery pack?

Factors to consider in the design of lithium battery pack 1. Explosion-proof: Once the lithium battery pack is thermally out of control, the air pressure in the battery pack will rise sharply. At this time, the battery pack may explode, so the PUW explosion-proof valve becomes a breakthrough, which can be timely and fast Relieve pressure. 2. Maintain the air pressure balance inside and outside the lithium battery pack: Because the temperature of the battery pack changes during the charging and discharging process, the air pressure inside the battery pack changes, and the PUW explosion-proof valve can breathe while not leaking, so it can maintain the air pressure in the bag. Same as the outside world. 3. Consider the design of lithium battery pack PACK management system: overshoot, overdischarge, overtemperature, detection accuracy, battery equalization, etc., to ensure that the battery is safe and reliable must be reasonably designed and verified by the market. 4. Consider the mechanical structure design of energy storage lithium battery packs: strength, earthquake resistance, heat dissipation/heating, waterproof, dustproof, etc. should be considered; electrical design should be considered, safety regulations, EMC safety regulations and other factors should be considered. 5. Waterproof and earthquake-resistant in the structure of the lithium battery pack: After the lithium battery is soaked, the positive and negative electrodes are short-circuited and the continuous discharge will cause damage to the internal structure of the battery. The waterproof and dustproof performance should be considered when designing the battery pack. 6. The influence of temperature on the structure of lithium battery: Thermal factors largely affect the structural design of battery pack PACK. Lithium battery energy storage battery pack is more sensitive to the temperature environment. Too high temperature will seriously affect the charge and discharge performance and many characteristics of the battery Parameters, such as internal resistance, voltage, SOC, available capacity, charge and discharge efficiency, and battery life. 7. Material selection for pack structure of lithium battery pack: High-voltage resistance and insulation performance is one of the most important technical requirements for battery pack structure design. The battery pack structure is loaded with various lithium batteries. The total voltage and total current of the battery pack will be very large. The plastic has good and high-voltage insulation. Generally, nylon with higher strength and plasticity can be used as the raw material. Adding 5% to 45% of glass fiber to strengthen the structure with GF can improve the structural strength and vibration resistance. 8. Shell toughness: The lithium battery shell should have enough mechanical strength to protect the battery from mechanical impact. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to charge to extend the service life of electric vehicle batteries?