23:39 17-10-2025

Interwoven silicon EV battery promises up to 2,000 km per charge

A team of South Korean researchers from POSTECH and Sogang University has unveiled a new battery technology that could reshape the electric-vehicle market. Their silicon battery promises up to 2,000 kilometers of driving on a single charge without increasing the size or weight of the pack.

The key, they say, is an interwoven architecture in which the electrode and electrolyte are bonded at both chemical and structural levels. This design addresses the main failure of silicon anodes—cracking as they expand during charging—so the cell keeps its stability and strong performance across many cycles.

According to the researchers, energy density reaches 403.7 Wh/kg, about 60% higher than today’s lithium-ion cells. That figure would put EV range on par with gasoline models without upsizing the battery volume. If it holds up beyond the lab, that kind of endurance could ease one of the last real pain points for potential EV buyers.

If the technology proves itself at industrial scale, the implications are clear: electric cars could become lighter, cheaper, and more efficient. Mass production will still require certification, safety validation, and retooling of manufacturing lines.

Experts estimate that deployment of such batteries could begin in the next decade, opening the door to a new era of e-mobility with up to 2,000 kilometers between charges.