Nice for expensive sports cars where cost doesn't matter. But everything else competes on cost, not weight. These high density batteries are going to be very premium priced for quite some time to come. Plenty of customers willing to pay that premium. High volume production of that things is likely some time away.

Catl also produces some sodium ion batteries. They have even less density than LFP but contain no lithium or other valuable materials. For mass production, cost is king. And with faster charging speeds, range becomes less important.