Chinese carmaker Chery plans to begin testing solid state batteries next year. It intends to invest ten billion yuan in the programme over two years and involve around 1,200 engineers.
The development target is an energy density of about 400 watt hours per kilogram, roughly twice the level of common current cells. Greater density could provide more range or allow a smaller and lighter battery pack.
The company chairman has stressed that the technology will not enter vehicles until it is proven safe. The announcement therefore does not mark mass production or confirm a customer model launch date.
Solid state batteries promise gains in safety and energy storage, but manufacturing remains difficult. Long cycle tests, performance across temperatures and affordable large scale production will determine whether the technology is ready.
