From：CTECHI GROUP Limited Release time：2019-02-15
Overview：The first solid-state lithium battery production line in Jiangsu Province was officially launched in Kunshan on September 19. The battery energy density can reach more than 400 Wh. The product will be mainly used in special power supply, high-end digital and other fields.
The first solid-state lithium battery production line in Jiangsu Province was officially launched in Kunshan on September 19. The battery energy density can reach more than 400 Wh. The product will be mainly used in special power supply, high-end digital and other fields.
As the "heart" of new energy vehicles, power batteries will undoubtedly determine the future of new energy vehicles. According to incomplete statistics, the shipment of lithium-ion batteries in China in 2017 was 39.2 GWh, an increase of 28.5% over the same period last year. Industry insiders predict that by 2030, it will maintain a compound growth rate of more than 25%.
In the future, more power will be needed when buses, planes and ships are switched to batteries. At present, the performance evolution of water-based lithium batteries is slowing down. Therefore, plastic solid-state batteries become the development direction of the next generation of lithium batteries.
Focusing on the research and development of solid-state lithium batteries, Nance Academician Team of Tsinghua University has tackled a series of problems, such as mass production of solid-state electrolyte materials, solid-state electrolyte membrane forming technology, composite positive and negative electrode formulation technology, solid-solid interface between electrodes and electrolyte membranes, and successfully industrialized the research and development achievements of oxide solid-state electrolyte materials and functional ionic conductor ceramic composite diaphragms.
The battery pack with the thickness of nail cap sheared, did not explode, and still could provide normal power supply; Bend 10,000 times, the battery capacity attenuation does not exceed 5%; After needling, the water intake does not burn or explode... The appearance of solid-state lithium batteries with high energy storage and high safety has shocked the battery industry.
Nan Cewen, academician of the Chinese Academy of Sciences, believes that solid-state lithium batteries have stronger driving force, larger energy reserves, and can achieve faster charging and longer duration. At the same time, because the solid electrolyte is non-flammable, non-corrosive, non-volatile, non-leakage, even at high temperature, it will not ignite, so the safety is higher. The automobile with all solid state lithium battery will greatly reduce the probability of spontaneous combustion.
According to reports, the first mass-produced production line mainly produces high-energy density solid-state lithium-ion batteries, large-capacity flexible solid-state batteries and high-security solid-state batteries. Another six production lines are being prepared to meet the needs of automotive enterprises in power batteries by 2020.
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