Can Solid-State EV Batteries Achieve Over 1,800 Miles of Range?

Solid-State EV Batteries with Over 1,800 Miles of Range: Is It Possible?
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Another company has claimed to be developing solid-state electric vehicle (EV) batteries that could provide more than 1,000 miles (3,000 km) of range and support ultra-fast charging in just five minutes. This time, it’s not BYD making the headlines. But is this claim too good to be true?

### Can Solid-State EV Batteries Achieve +1,000 Miles of Range?

Recently, a report emerged stating that BYD was testing solid-state batteries in its Seal sedan, which competes with the Tesla Model 3. However, BYD responded by stating that the details regarding the first model and its specifications have not been officially disclosed.

A new patent filed by Chinese tech giant Huawei reveals a sulfide-based all-solid-state battery that reportedly offers a driving range of up to 3,000 km (over 1,800 miles) and enables ultra-fast charging in just five minutes.

To put this into perspective, the current longest-range electric vehicle available for purchase is the 2025 Lucid Air Grand Touring, which has a WLTP driving range of up to 839 km (521 miles). On the EPA scale, the Lucid Air is rated for a range of up to 512 miles and can achieve fast charging (adding up to 200 miles) in just 12 minutes. This means that Huawei’s new battery could potentially offer more than three times the driving range while significantly reducing charging times.

### Expert Opinions on the Feasibility

Industry experts in South Korea, however, have raised concerns about the feasibility of these claims. Yang Min-ho, a professor of energy engineering at Dankook University, stated, “Even the most advanced lithium-ion batteries, which generally have higher capacity than solid-state prototypes, fall far short of that kind of range.” He noted that while such performance might be achievable under lab conditions, real-world factors like energy loss and thermal management complicate mass production.

The patent outlines a novel approach involving the doping of sulfide electrolytes with nitrogen to enhance stability. A researcher from one of Korea’s major battery manufacturers pointed out that while nitrogen doping can improve interface stability, it typically requires precise conditions that are difficult to replicate on a large scale. They likened it to trying to sprinkle pepper on a sandwich using tweezers—an impractical method for commercial production.

### The Path to Commercialization

Though Huawei’s patent shows promise, it requires further validation from independent third parties to confirm its readiness for production. According to the researcher, major South Korean battery firms, including LG Energy, Samsung SDI, and SK On, are not overly concerned. “We monitor developments in China closely, but this doesn’t look like a game-changer yet,” they stated. Samsung SDI has already sent solid-state battery samples to clients and aims to begin mass production by 2027, while both LG Energy and SK On plan to introduce solid-state technology by 2030.

### The Future of Solid-State EV Batteries

Will solid-state EV batteries deliver the ultra-long driving ranges as promised? It is possible, but it may take several years before they reach the market. As Yang emphasized, “Battery science doesn’t move in leaps. It moves in increments, and those increments take years to scale.”

Several automakers are making strides in solid-state battery technology, promising longer ranges and faster charging times. Earlier this year, Mercedes-Benz tested the first car powered by a lithium-metal solid-state battery in collaboration with Factorial Energy using a modified EQS. Last month, BMW completed its initial on-road tests with Solid Power’s all-solid-state battery cells. Other companies, including CATL, Stellantis, Nissan, and Volkswagen, have also announced plans to launch EVs equipped with solid-state batteries in the coming years.

Will the “holy grail” of EV batteries fulfill its potential? Share your thoughts in the comments below.