Solid-state batteries are shifting from research and development to actual production, well ahead of the anticipated 2027 timeline set by industry giants like Toyota, Samsung, and BYD. These companies aim to revolutionize the market by introducing electric vehicles powered by these advanced cells. Already, we see the emergence of semi solid-state batteries, which incorporate 95% solid electrolyte, in production vehicles.
Initially reserved for luxury models such as the NIO ET9 with its impressive 650-mile range, these batteries were once deemed too costly. NIO, leveraging technology developed with WeLion, rented the expensive 150 kWh batteries to keep costs manageable, utilizing their innovative battery swap system to make long trips convenient.
However, recent advancements and economies of scale have reduced costs significantly, paving the way for more affordable electric vehicles. The upcoming MG4 hatchback, set to be unveiled on August 5, is a prime example. It will be the first economical electric car equipped with a semi solid-state battery, with a price tag around $15,000 in China. The MG4’s 70 kWh battery, developed by QingTao Energy, offers increased safety with only a 5% flammable liquid component and delivers 14% better capacity retention in cold weather. This extends the vehicle’s range in low temperatures and ensures reliability.
Meanwhile, other automotive giants like BMW and Mercedes are also diving into solid-state technology. Subsidiaries of both companies have announced plans for mass production. Svolt will soon begin trial production for BMW’s next-generation Mini, and Farasis Energy, backed by Mercedes, is setting up a pilot line for sulfide solid-state batteries.
Mercedes has already taken the lead by integrating a solid-state battery into its EQS sports sedan, achieving a remarkable 620-mile range thanks to a 25% increase in energy density. While they haven’t disclosed the costs involved, this move positions Mercedes as a pioneer in real-world application.
CATL, the world’s largest battery maker, predicts that true solid-state batteries might not be commonplace in mass-market vehicles until after 2030. However, their potential as a transitional technology is evident as semi solid-state batteries start gaining traction, demonstrated by the introduction of the first affordable electric car featuring this innovative technology.
This evolving landscape promises to reshape the electric vehicle industry, bringing safer and more efficient options to a wider audience sooner than anticipated.
