New cathode design solves major barrier to better lithium-ion batteries

https://techxplore.com/news/2022-09-cathode-major-barrier-lithium-ion-batteries.html

"boundary-free single crystals... high voltage 25% increase energy storage per unit volume...no loss of performance over 100 cycles... capacity declined by 60% to 88% in NMC cathodes composed of single crystals with many internal boundaries or with coated polycrystals... boundaries more vulnerable towards loss oxygen when battery being charged... boundaries lead to oxygen release high voltage and performance decline... improves cathode safety and stability with cycling"

Related: This Spanish battery for the home has 10 kWh and costs only 2,720 euros with shipping costs

https://ev-riders.com/blog/this-spanish-battery-for-the-home-has-10-kwh-and-costs-only-2720-euros/