"Its multifunctional performance is ten times higher than previous structural battery prototypes." The problem is we don't really know what multifunctional per

"Its multifunctional performance is ten times higher than previous structural battery prototypes." The problem is we don't really know what multifunctional performance means or how it's defined, but maybe this is a common metric in battery technology? edit: I skimmed the actual paper linked in the article and it doesn't mention a 10x improvement. "Structural battery composite materials, exploiting multifunctional constituents, have been realized and demonstrate an energy density of 24 Wh kg−1 and an elastic modulus of 25 GPa. Their combined electrochemical and mechanical properties outperform all previous structural battery materials reported in the literature. "