Are Solid-State Batteries the Next Step for Autonomous Cars?
The Shift in Autonomous Car Expectations
Over a decade ago, the hype surrounding autonomous car concepts led many to believe that by now, we would be enjoying truly driverless cars with no steering wheels. However, the reality is quite different. The distinction between driver-assistance technology and true autonomy has become clear, and it seems unlikely that cars will ever cross that line. The challenges of legislation and funding are major obstacles to achieving full autonomy.
The Promise of Solid-State Technology
While discussions about autonomous cars have dominated the industry, the idea of solid-state technology for electric vehicle (EV) batteries has been around for even longer. Solid-state batteries have the potential to reduce cost and weight while improving range, power density, and resistance to degradation. The concept of solid-state technology emerged when mass-produced EVs entered the market at the beginning of the last decade.
Car manufacturers such as Toyota, Nissan, Honda, and Volkswagen have recently announced their developments in solid-state technology. Nissan and Toyota have both committed to launching solid-state EVs by 2028. Unlike autonomous cars, the future of solid-state batteries seems promising.
The Uncertainty Surrounding Solid-State Batteries
However, Mercedes-Benz’s technical chief, Markus Schäfer, believes that the complete replacement of liquid lithium-ion batteries with solid-state chemistry in future EVs is not guaranteed. Schäfer highlights the unexpected progress made with liquid electrolyte lithium-ion battery technology, suggesting that it could compete with solid-state technology in terms of cost and energy density.
Additionally, the existing supply and production network for lithium-ion batteries raises questions about the need to build a new infrastructure for solid-state technology. Nissan has suggested that new factories may be necessary for solid-state EVs due to the significant impact on development and manufacturing processes.
The Debate on Battery Technology
The competition between battery-electric and hydrogen-powered cars has already been won by the former. The focus now shifts to determining which battery technology will power electric vehicles. This debate has garnered significant interest, as evidenced by the popularity of Schäfer’s comments on autocar.co.uk.
While opinions differ, Schäfer’s comparison of solid-state technology to the forecasting of autonomous driving suggests his skepticism towards its widespread adoption. The future of solid-state batteries in the automotive industry remains uncertain.