The first was an upgraded version of its Shenxing battery designed to add more range when fast charging. CATL said the battery can now offer 520 kilometers (323 miles) of range from just five minutes of charging time — a marked improvement over BYD’s promise to add 400km (249 miles) of range in the same amount of time.

The world's largest EV battery company also teases two other jaw-dropping technologies, though it's unclear if US consumers will ever get to try them.