Is the energy density of all solid-state lithium batteries high?

At this stage, the mass energy density of the battery system used by most car companies is between 130-150Wh/kg, and the highest can reach 160Wh/kg. By 2020, my country's power lithium-ion battery cell specific energy will reach more than 300wh/kg, and strive to achieve 350wh/kg, the system specific energy strive to reach 260wh/kg, and the cost will be reduced to less than 1 yuan/watt-hour. Compared with traditional lithium batteries, all solid-state lithium batteries have the following advantages in addition to higher volumetric energy density: 1. Higher packaging efficiency. The all-solid-state lithium battery design supports serial overlapping arrangement and bipolar structure. The tight arrangement can reduce the volume of ineffective space in the battery pack. 2. More secure. The all-solid lithium battery will not have the hidden danger of electrolyte leakage, and its non-flammable properties and inorganic electrolyte make it more thermally stable. 3. Longer service life. The study found that the electrochemical window of the new all-solid electrolyte membrane can be as high as 4.6V, and the thermal stability temperature of the electrolyte can reach at least 200°C. When this electrolyte is used in an all-solid-state lithium battery, it can still maintain after 1000 long cycles of charge and discharge. 92% capacity. Even when researchers perform corner cutting and nail penetration detection on this solid-state battery, it can still be charged and discharged normally. The successful development of an all-solid polymer electrolyte with high thermal dimensional stability, excellent mechanical strength, wide electrochemical window and high room temperature ionic conductivity will enable lithium battery electrolytes to be seamlessly combined with electrode materials of various morphologies. It is expected to be used in the manufacture of lithium-ion batteries for electric vehicles on a large scale. Moreover, due to this scientific research result that has doubled the energy density of lithium batteries, the range of electric vehicles is expected to increase to over 450 kilometers, and the prospects for use are extremely broad. Its excellent pressure resistance will also greatly promote the development of electric vehicles, spacecraft and deep-submersible vehicles. 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: What are the gaps between domestic and imported lithium battery equipment