They will not be as good as lithium batteries, because they can’t hold the same amount of energy.
Operating at a nominal voltage of 3.7V, the KIB is on track to achieve a gravimetric energy density of 160-180 Wh/kg, matching the capabilities of LFP-LIB batteries. This breakthrough opens new possibilities for high-performance applications, from portable electronics to electric vehicles.
Lithium-ion are now just over 200 Wh/kg
https://www.techspot.com/news/104110-new-potassium-ion-battery-technology-could-soon-replace.html
I’d be fine with a battery with 75-90% of the capacity, for much lower price.
I’d be more curious about recharge time.
“Lithium-ion are now just over 200 Wh/kg”
Tesla is pushing 300 in production cells.
I have no idea what these smaller cells are.
“Operating at a nominal voltage of 3.7V, the KIB is on track to achieve a gravimetric energy density of 160-180 Wh/kg,”
Non-production cells have been developed with a capacity of 235 Wh/kg.
What does this “gravimetric energy density of 160-180 Wh/kg” specification mean? Is the weight of the battery in kilograms to the output current?