TechnologyChina's New Iron Battery Lasts 6,000 Cycles With No Capacity LossResearchers at the Institute of Metal Research built an all-iron flow battery that ran for 6,000 charge cycles — about 16 years of daily use — without measurable capacity decay, using cheap, abundant materials and a water-based electrolyte that cannot explode.
NewsSolar and Wind With Batteries Now Beat Coal and Gas on Cost, IRENA FindsA new report from the International Renewable Energy Agency shows round-the-clock solar and wind paired with battery storage now deliver firm power at $54–$82 per megawatt-hour — undercutting new fossil fuel plants in the best regions.