Startup SolidEnergy Systems has developed a prototype of a lithium metal battery that is half the size for the same capacity.
This development will help reduce the weight of the electric vehicle as part of an agreement between SolidEnergy Solutions (SES) and General Motors. This is a major challenge for automakers looking to build electric vehicles.
A GM spokesman said its next-generation Ultium battery packs will cost 60% less than current batteries by mid-decade, twice the energy density rating.
It is noted that batteries are one of the most important components of an electric vehicle, therefore, the development of new patents and improvement of their properties is a priority among automakers. For example, GM has 49 patents for lithium metal batteries.
GM plans to unveil its first electric vehicles on the Ultium platform later this year, starting with the Cruise Origin minivan, followed by Cadillac, Hummer and other brands.