Experts caution that while the performance claims are exciting, they are largely theoretical and depend heavily on the development of appropriate charging infrastructure.

The new solid-state battery is reported to achieve an energy density between 400 and 500 Wh/kg, significantly surpassing current lithium-ion batteries, which typically range from 150-250 Wh/kg.

Huawei has filed for patents for a sulfide-based, all-solid-state electric vehicle battery that claims to offer up to 1,864 miles of range and ultra-fast charging capabilities, allowing for a 10-80% charge in under five minutes.

This move into solid-state battery development places Huawei in a competitive landscape alongside major automotive players like BMW, Mercedes-Benz, and BYD, all of whom are focused on advancing battery technology for electric vehicles.

The patent application boasts an impressive energy density of 180 to 225 Wh/lb, which is two to three times higher than current electric vehicle batteries.

The patent also describes a method of doping sulfide electrolytes with nitrogen to reduce side reactions at the lithium interface, although many technical specifics remain undisclosed.

Despite these ambitious claims, industry experts express skepticism regarding the feasibility of achieving such performance in real-world conditions, citing challenges like energy loss and thermal management.

While companies like CATL are aiming to pilot hybrid solid-state battery production by 2027, analysts believe this timeline may be overly optimistic.

Chinese firms are actively contributing to this innovation, filing over 7,600 patents annually related to solid-state batteries, which accounts for 36.7% of the global total.

If successful, Huawei's battery technology could lead to substantial improvements in battery efficiency, weight reduction, and overall vehicle range.

Some analysts suggest that focusing on smaller, lighter battery packs that provide a more practical range of 500 to 600 miles could be more beneficial than pursuing extreme ranges that may compromise vehicle performance and cost.

China has emerged as a leader in the electric vehicle market, bolstered by government support and advancements in battery infrastructure, yet the transition to solid-state batteries will face significant hurdles in safety validation and mass production.