High-performance self-charging energy storage device combines supercapacitors with solar cells to deliver high energy in real time

https://www.eurekalert.org/news-releases/1069240

"dramatically improves energy (35.5 Wh kg⁻¹)/ power (2555.6 W kg⁻¹), densities, charge/ discharge stability of existing supercapacitors, utilizing electrodes using nickel-based carbonate/ hydroxide composite, and maximizing conductivity/ stability by adding transition metal ions such as Mn, Co, Cu, Fe, Zn... minimal degradation during repeated charge/ discharge... energy storage (63%)/ overall (5.17%) efficiencies... effectively validates potential for commercialization"

Related: P/Mo Co-doped NiCo layered double hydroxides via one-step synthesis: reduced crystallinity induces accelerated electron transport for high-rate supercapacitors
https://pubs.rsc.org/ta/article-abstract/doi/10.1039/d6ta04363a/1296445/P-Mo-Co-doped-NiCo-layered-double-hydroxides-via