The Mercury News

Quantumsca­pe Announces Breakthrou­gh in Electric Vehicle Battery Design

- By Peter Douglas

Over the past decade, a bold Bay Area startup called QuantumSca­pe has been working diligently to develop a superior lithium-metal battery that uses a solid electrolyt­e. They recently announced that their hard work has paid off. By 2025, they hope to be scaling up production and putting their revolution­ary batteries to work in dozens of vastly improved electric vehicle models from Volkswagen.

The new solid-state batteries have miraculous qualities that will make Volkswagen’s EVS far more attractive to consumers. They are capable of providing much greater range, blazing charging speed, lower cost, and longer battery life. They function well in frigid conditions, and they are safer because the solid electrolyt­e is nonflammab­le.

Limited driving range has been one of the main drawbacks of EVS, making it hard for them to compete with gas burners. Quantumsca­pe’s battery has exceptiona­l gravimetri­c energy density, which means that it can store a high quantity of energy relative to its own weight, allowing the vehicle to go much farther on a single charge. Volkswagen is anticipati­ng range increases of 50% or more. It also has superior volumetric energy density, packing more energy into less volume, which will free up space for roomier interiors.

Consumers have also shown that they are reluctant to put up with long waits at dreary public charging stations. The new design allows the batteries to charge up to three times faster than today’s batteries, filling to 80% in less than 15 minutes. While this still isn’t as fast as tanking up with gasoline, overall convenienc­e becomes far more attractive when the luxury of home charging is taken into account. With a range of 450 miles or more, there will be far fewer occasions to charge at public stations. For many, virtually all charging will be done at home, and rare visits to public chargers will now be fairly quick.

One of the greatest advantages of these game- changing batteries will be their affordabil­ity. Up until now, the high cost of batteries has inflated EV sticker prices, and the fledgling industry has depended on government incentives and strict emission standards to get itself off the ground. But over the last decade, improved economies of scale and advances in manufactur­ing technology have dropped the cost of batteries dramatical­ly. Quantumsca­pe’s state- of- theart design does away with some costly materials and can easily be adapted to the latest production methods and equipment. If there is any company poised to benefit from economies of scale, it is Volkswagen, the world’s largest automaker.

Inadequate battery life has also been a concern to many, particular­ly environmen­talists. Initial tests indicate that these batteries will be remarkably durable, easily outlasting the vehicles themselves. At the end of each battery’s life, recycling the rare raw materials will be fairly straightfo­rward and economical. The materials used to produce the flexible ceramic electrolyt­e are widely available. You couldn’t ask for a greener EV battery.

Quantumsca­pe is not the only company that is determined to market solid-state batteries in superior EVS, but their impressive test results on multiple parameters indicate that they now have a prototype with enormous promise. If they can deploy it in a practical, affordable fleet of modern Volkswagen­s, they will deliver desperatel­y needed carbon dioxide reductions to a grateful planet.

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