Insights on Flexible Zinc‐Ion Batteries from Lab
Huang et al. even designed a wearable alkaline nickel/cobalt–zinc-based battery in the structure of a yarn-based cable-type battery. This battery delivered an energy density of 8 mWh cm −3 . PVA–KOH gel electrolyte was also employed in the parallel-yarn cable type ZIBs, [ 145 ] where the energy density was 4.6 mWh cm −3 .
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