Huawei has sparked major excitement in the electric vehicle (EV) world with its new solid-state battery patent, promising a 3,000-kilometre range and five-minute full charging. This sulfide-based solid-state battery boasts an energy density of 400–500 Wh/kg — double or triple that of traditional lithium-ion cells. The innovation addresses longstanding safety and stability issues by doping the electrolyte with nitrogen, enhancing battery lifespan and safety.

While Huawei isn't yet a battery manufacturer, it’s making bold moves into energy technology, with multiple patents filed to lower production costs and improve electrolyte materials. This reflects a larger trend among Chinese tech firms like Xiaomi and Nio, who aim to reduce dependence on big battery suppliers such as CATL and BYD by developing in-house solutions.

However, experts caution that such battery performance would need advanced charging infrastructure not yet widely available. Despite these challenges, China is leading the global patent race in solid-state batteries, filing over 7,600 annually — 37% of worldwide activity. Japanese and Korean media are already voicing concerns over China’s rapid advancements.

Meanwhile, legacy firms like Toyota and Samsung are still developing their own versions, with Toyota eyeing production by 2028. The battery race is clearly intensifying, as companies prepare for next-gen EVs and even electric air mobility. Huawei’s latest move might not transform the market overnight, but it signals a major shift in the global energy tech landscape.