What are the technical bottlenecks of power lithium battery packs?

1. Short endurance journey: As the skills continue to grow old, the endurance journey of electric cars with lithium batteries as the power source has been increased from less than 100 kilometers initially to about 300 kilometers in the mainstream at that time, and the endurance journey of a single model has broken through 400 kilometers. However, there is still a certain interval compared with the 500 kilometers of the dry-fueled car. This question can be dealt with by multiple strings of single cells, but the negative question brought about is that the volume is too large, which makes it inconvenient for the car to travel. Second, the charging speed is slow: related to the short journey, but the slower charging of the lithium battery pack is a greater restriction for the opening of electric cars. At normal speeds, the power lithium battery of electric cars is fully in demand for 4 to 8 hours. At present, there are also smart rechargeable lithium batteries that can be filled in 1 to 2 hours, but their negative effects are extremely large, the life span will be reduced to 1/3 of the original, and the battery function will be significantly reduced. There are no such doubts for fuel cars, and the refueling time does not exceed 5 minutes, and safety and stability can be guaranteed. 3. The safety function needs to be improved: Since the birth of lithium battery packs, safety questions have always confused customers. From mobile phones and laptops to today's electric cars, safety accidents continue to occur. Except for the electric cars of Nissan and Tesla that have not yet been reported on fire, the electric cars of Zotye and BYD in my country, GM and Fisker in the United States all have spontaneous combustion or fire. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the basic technical indicators of the lithium iron phosphate battery pack?