Huawei has attracted attention in the electric vehicle industry with a new patent for its sulfur-based solid-state battery technology. The battery system the company has applied for promises a theoretical driving range of up to 3,000 kilometers and a full charge time of just 5 minutes.

Huawei to receive a new solid-state battery patent

According to the technical data in the patent documents, the new battery can reach an energy density of 400 to 500 Wh/kg. This value means two to three times the energy capacity of currently widely used lithium-ion batteries.

Huawei’s battery architecture aims to suppress side reactions at the lithium interface by adding nitrogen doping to sulfur electrolytes. These reactions are known to be one of the main problems encountered in the transition of sulfur-based batteries to widespread use.

The solution described in the patent aims to extend battery life and increase thermal safety. It is stated that this approach also offers improvements in terms of safety. However, it is said that the commercialization of the high-power charging infrastructure required for the 5-minute charging time will take time.

Although Huawei is not a direct battery manufacturer, it draws attention with its investments in battery technologies and materials. The company, which filed a separate patent application for sulfur-based electrolyte synthesis in early 2025, focuses on the production processes of new generation materials with high conductivity.

In addition to Huawei, companies such as Xiaomi and Nio are also trying to develop their own battery technologies. So what do you think about this? You can share your views with us in the comments section below.