There is no doubt about the development prospect of electric vehicles. The main problems now are endurance, fast charging and safety. The energy density of existing liquid batteries can hardly exceed 300 watt hours / kg. The next generation depends on solid-state batteries.
Chen Liquan, academician of Chinese Academy of engineering, once said at the forum of China electric vehicle 100 people’s Congress (2021): lithium ion battery plays a leading role in electric vehicles with its high energy density, high efficiency and low self discharge rate.
However, lithium-ion batteries contain flammable liquid electrolytes, which can cause fire and explosion, which is easy to cause serious safety problems.
At the same time, its energy density has reached 300 WH / kg, reaching the performance limit of liquid lithium-ion battery.
Therefore, the next step is to develop solid-state batteries, or gradually transition to all solid-state lithium batteries. Solid state battery has the advantages of high safety, no risk of spontaneous combustion and explosion, and its energy density is significantly higher than that of traditional lithium battery.
However, solid state batteries still have a way to go before mass production. Wang Chaoyang, academician of the National Academy of inventors and Sciences, said publicly recently that mass production of all solid state batteries should be after 2030.
According to him, according to current progress, it will take another 10 years for all solid state batteries to reach maturity in science and manufacturing technology.
Of course, if there is a huge scientific breakthrough, it may happen within 10 years.
Reprint indicated source：Spark Global Limited information