What is the current technical bottleneck of lithium batteries?

What is the technical bottleneck of the lithium battery? The key factors that are unfavorable for the opening of power vehicles in my country are driving, charging speed, and safety performance. These three factors are caused by the inability of power lithium battery technology, so they can also be regarded as the three major technologies of power lithium battery packs. bottleneck. Let me explain for you 1. Short cruising range: With the continuous improvement of technology, the cruising range of lithium battery electric vehicles has increased from less than 100 kilometers at the beginning to about 300 kilometers in the mainstream, and the cruising range of a single model has exceeded 400 kilometers. . But this still has a gap with the mainstream mileage of 500 kilometers of gasoline-powered cars. This problem can be solved by multiple strings of single cells, but the disadvantage is that the size is too large and it is inconvenient to travel by car. Second, the charging speed is slow: and the journey is short, but the charging of the lithium battery pack is slow, and the electric vehicle opens a greater limit. At normal speeds, the lithium power of electric vehicles can fully meet the needs of 4 to 8 hours. There are also sensitive rechargeable lithium batteries, which can be fully charged within 1 to 2 hours, but their negative effects are very large, the service life will be reduced to 1/3 of the original, and the battery function will be significantly reduced. These problems do not exist in the refueling vehicle, and the refueling time does not exceed 5 minutes, and safety and stability can be guaranteed. 3. Safety features need to be improved: Since the birth of lithium batteries, safety issues have been plagued by consumers. From mobile phones and laptop computers to today's electric vehicles, safety accidents occur frequently. Except for the electric vehicles of Nissan and Tesla, there have been no reports of fires. The electric vehicles of Zotye and BYD in my country, General Motors and Fisker in the United States have all been attacked by spontaneous combustion or fire. Maintenance and use of power tool batteries What should be paid attention to in the maintenance and use of power tool batteries? The following is analyzed by professional lithium battery manufacturers 1. Before inserting lithium batteries into power tools, be sure to turn off the power tool switch. Inserting the battery into an opened power tool may cause trouble. 2. Please use the charger specified by the lithium battery manufacturer to charge the battery. A battery charger may cause a fire when charging another battery. 3. Only use the battery specified in the power tool. Using other batteries may cause damage and risk of fire. 4. Keep unused power tool batteries away from work clamps, coins, keys, nails, nuts or other small metal objects that may cause short circuits. Short circuit of the electrode can cause burning or even fire. 5. Improper use of power tool batteries may cause liquid to flow out. Please prevent contact with liquids. Once in contact, rinse immediately with water. If the fluid gets into the eyes, seek medical attention immediately. This liquid may cause skin irritation or burning. 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 post: Analyze how to discharge lithium batteries