Significant extension of zinc battery lifespan to several hundred thousand charge cycles

https://www.eurekalert.org/news-releases/1062911

"addresses dendrites and unwanted hydrogen formation/ corrosion, using porous organic polymer TpBD-2F forms stable, ultra-thin, highly ordered film on zinc anode, allowing zinc ions to flow efficiently through nano-channels while keeping water away from anode... large-scale energy storage... also safer, cheaper,  than lithium... prototype button cell, but scalable"