India Develops the World's First Iron-Ion Battery Posted by redpillor on Monday August 26, 2019 @11:11AM from the energytrend.com dept. https://www.energytrend.com/news/20190826-15033.html ( 1 comment | 4 points | on HN )
- safer than lithium-ion
- "220 Wh/kilo, which is only around 55-60% of the 350 Wh/kilo of energy density for lithium-ion battery."
- "only capable of 150 cycles of charging and discharging"
Interesting but not there yet.