Huawei patents EV battery offering 3,000 km range and ultra-fast five-minute charge

The patent describes a solid-state design with energy densities of 400-500 Wh/kg, two to three times higher than current lithium-ion cells, Car News China reported. The structure aims to improve safety and extend cycle life by reducing degradation at weak points.

Although Huawei does not produce its own vehicles, the company collaborates with automakers to integrate in-house technologies into electric models, including smart systems and potentially batteries, according to Interesting Engineering. The development places Huawei alongside BMW, Mercedes-Benz, Volkswagen, and BYD in the global race to commercialize safer, lighter, and faster-charging solid-state batteries.

Huawei AITO M5 EV model. Photo from Instagram

The Chinese tech giant theorizes its technology could support both a 3,000-kilometer range and 10-80% charging in under five minutes. Experts, however, caution that these figures remain theoretical.

The BBC Top Gear noted that reaching 3,000 kilometers would require a massive 500kWh battery. Even with improved energy density, such a pack would weigh about a tonne, heavier than the battery in Porsche’s Taycan, which delivers only 300 miles of range.

Global battery leaders such as Toyota, Panasonic, and Samsung have been developing solid-state technology for more than a decade. Toyota unveiled a prototype in 2023 that promised a 1,200-kilometer range and 10-minute charging, targeting commercialization within five years.

In China, Fujian-based CATL has announced plans to begin pilot production of a hybrid solid-state battery by 2027. Analysts, however, caution that timelines may stretch longer and performance may not fully meet domestic companies’ claims.