The Ars article linked below seems to indicate about 20x vs competing solid-state products and 2.5x vs liquid electrolyte batteries. "The new material provides

The Ars article linked below seems to indicate about 20x vs competing solid-state products and 2.5x vs liquid electrolyte batteries. "The new material provides an energy density...1,000 watt-hours per liter, which is about 100 times greater than TDK’s current battery in mass production. Since TDK introduced it in 2020, competitors have moved forward, developing small solid-state batteries that offer 50 Wh/l, while rechargeable coin batteries using traditional liquid electrolytes offer about 400 Wh/l, according to the group. "