China's New EV Batteries Promise 932-Mile Range by 2027

Imagine driving from Los Angeles to Seattle without stopping to charge your electric vehicle. That future just moved closer to reality.

Changan Automobile, one of China's largest automakers, announced it will begin testing solid-state batteries in vehicles and robots by September 2026. The company's "Golden Bell" battery boasts an energy density of 400 Wh/kg, enabling a driving range of over 932 miles.

The breakthrough addresses one of the biggest concerns holding back electric vehicle adoption: range anxiety. Current EVs typically travel 250 to 400 miles per charge, requiring careful trip planning and frequent charging stops.

Solid-state batteries replace the liquid electrolytes found in today's lithium-ion batteries with solid materials. This makes them safer, more efficient, and capable of storing significantly more energy in the same space.

Changan isn't alone in this race. Fellow Chinese automaker Dongfeng Motors recently tested a solid-state prototype in extreme cold conditions, achieving ranges over 620 miles. Major players including CATL, BYD, SAIC Motor, and GAC Group have all announced plans to mass-produce similar batteries between 2027 and 2030.

The momentum extends beyond China. Volkswagen, Toyota, Nissan, and Mercedes-Benz are all developing their own solid-state technology. Last September, Mercedes drove a modified EQS over 745 miles without charging using cells from US-based Factorial Energy.

The Ripple Effect

This technology could reshape transportation worldwide. Longer range means electric vehicles become practical for more people, from rural residents to long-haul truckers. Fewer charging stops make EVs more convenient than ever, removing a major barrier to adoption.

The safety improvements matter too. Changan reports its AI-powered battery diagnostics improved safety by 70%, addressing concerns about battery fires that have plagued some electric vehicles.

Meanwhile, Changan is also partnering with CATL on sodium-ion batteries for more affordable EVs. Earlier this month, they launched what they call the world's first mass-production sodium-ion passenger vehicle, offering 186 to 248 miles of range at a lower cost.

The convergence of multiple battery technologies gives consumers more choices. Premium vehicles could offer extreme range with solid-state batteries, while budget-friendly options use sodium-ion technology.

If these timelines hold, drivers in 2027 could choose electric vehicles that travel farther on a single charge than most gas-powered cars can on a full tank.