China’s breakthrough lithium battery could double EV range to 600+ miles, survive -94°F temp

A team of researchers in China developed an all‑weather hydrofluorocarbon‑based electrolyte for lithium batteries.

Batteries using the new electrolyte showed more than twice the energy density of conventional designs at room temperature.

For the same battery mass, room‑temperature energy storage capacity could increase two to three times versus conventional designs.

The chemistry remains stable in extreme environments, with batteries continuing to operate effectively at temperatures as low as −94°F.

The advance could potentially raise EV range from roughly 310–370 miles to about 620 miles, according to a study published last month in Nature.