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
Depending on the volt size of your electric garden tools or mower, there are a half dozen to several dozen of these 18650s used.
“As our transition away from fossil fuels accelerates”
Hmm. I read that world consumption of fossil fuels continues to increase.
Cheaper is nice, but overall the batteries are only ~20% of the car’s price. What is killing the EV is a combination of two issues.
1) Time to recharge. You can fill your car with gas and be on the road in 5-10 minutes, and are good for 300 miles.
2) Weight - your tires only last about half as long, due to the weight of the batteries. Cheaper and lower energy density batteries mean more weight, for the same charge.
To win in this battle, you need Better, Faster and Cheaper. Until you hit all three, you will not win.
Finally! Lithium is just too reactive to water to be safe.
(...snicker...)
Do you have to burn the same amount of Oil/Coal to make these potassium-ion batteries as you do to make lithium batteries ? Carbon Neutral is amazing ,\o/
What is the weight comparison between the two technologies?
Video shows moment dog sets house on fire after chewing on lithium-ion battery