Scientists solve high-nickel cathode challenge, reducing residual lithium, enabling high-energy-density lithium-ion batteries

https://techxplore.com/news/2025-05-generation-ev-batteries-scientists-high.html#google_vignette

"reidentified residual Li compound location/ minimized residual lithium content... High-Ni cathode content increases energy density, but leads to gelation, excessive residual lithium compounds not only on surface, but also between internal high-Ni cathode particles... overcome using single-crystal high-Ni having minimal or no grain boundaries between primary particles, preventing interparticle gap formation, eliminating space where residual lithium compounds could crystallize, reducing their levels up to 54%, to below 2K ppm"

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