138
China's new iron battery hits 99.4 percent efficiency over 6000 cycles
(interestingengineering.com)
this post was submitted on 29 Apr 2026
138 points (97.9% liked)
Technology
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It usually is at least a decade. New modern technology and manufacturing processes take years to decades to get up to speed because of all the hiccups and surprises they find along the way.