This is a most excellent place for technology news and articles.
TNT has 1162 Wh/kg ratio.
These new lithium-ion batteries get to 300-400Wh/kg range.
We are hitting the limit what is doable with energy density. Do you really want to carry 100g of TNT in your pocket or few tons of TNT in vehicle going 100km/h.
Of course things are not directly comparable, but ball parks.
What are you gonna do with your 400 charge cycles?
Charge cycles tend to improve as technology and processes improve. Other sodium ion batteries started out similarly limited in cycles and have since basically matched lithium ion.
I think the real breakthrough will come when we will be able to make powerful microbatteries.
