A breakthrough in the development of batteries of the future has long been agitated by the technology community. Compared to lithium-ion batteries, solid-state promises smaller dimensions, more energy efficiency and faster charging speed. Many giants of the industry are engaged in their development, but no one has yet reached commercial designs. In addition to the Chinese startup Qing Tao Energy Development Co.
According to the Chinese state news agency Xinhua, this company was the first in China to launch a production line of solid-state batteries. About $ 144 million was invested in the project. They are going to produce batteries with an energy density of 400 watt-hour per kilogram from the conveyor. Whereas current mass lithium-ion batteries offer a density of 250–300 watt-hour per kilogram, Engadget said .
Chinese media are stingy with details; the technological basis of the production line and devices for which the first batteries come off the conveyor are not specified.