Huawei has filed a patent detailing a sulfide-based solid-state battery design with energy densities between 180 and 225 Wh/lb, roughly two to three times higher than today’s typical electric vehicle batteries.
While the Chinese tech giant does not manufacture its own branded vehicles, it works closely with automakers to integrate in-house advanced technologies into electric vehicle models, including smart systems and now potentially its battery innovations.
By pursuing solid-state battery development, Huawei joins a growing list of global automakers and tech companies such as BMW, Mercedes-Benz, Volkswagen, and BYD, all racing to unlock safer, lighter, and faster-charging batteries to transform the future of electric mobility.
Huawei’s patent application reveals that its battery uses a method of doping sulfide electrolytes with nitrogen to reduce side reactions at the lithium interface. However, beyond this detail, the company is keeping most of its technology under wraps as competition intensifies to safely mass-produce solid-state batteries.
Additionally, Huawei theorizes that its battery technology could deliver around 1,864 miles of range and achieve a 10% to 80% charge in under five minutes, which would mark a transformative leap for electric vehicles.
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