Innovation ecosystem driving rapid battery advancements By Li Yang | China Daily | Updated: 2026-05-25 22:14 In April, the retail penetration rate of new energy passenger vehicles in China surpassed 60 percent for the first time, reaching 61.4 percent. Internal combustion vehicles are increasingly becoming the minority technology in one of the world's largest automobile markets. This transformation is being driven by simultaneous advances in multiple battery technologies in China. While lithium iron phosphate batteries continue to dominate the sector because of their lower costs and improving safety profile, research is accelerating in solid-state batteries, sodium-ion batteries and iron-based flow batteries for large-scale energy storage. Over the past five years, the unit cost of power batteries in China has decreased by 30 percent, their lifespan has increased by 40 percent, and charging speeds have more than tripled. The country is transforming the battery — the most expensive and technologically sensitive component of an electric vehicle — into a mass-market commodity with rapidly improving performance. It’s a story of scale, chemistry and market selection. China's power battery output reached 310 gigawatt-hours in the first two months of 2026, up 22 percent year-on-year. Lithium iron phosphate batteries alone accounted for nearly 115 gigawatt-hours of production in February, far exceeding ternary lithium batteries. This reflects the emergence of a manufacturing ecosystem capable of relentless innovation and continuous cost compression. Meanwhile, researchers at the Chinese Academy of Sciences recently reported progress in iron-based flow batteries that are capable of more than 6,000 charging cycles without measurable degradation. Because iron is far cheaper and more abundant than lithium, such technologies could become important not only for electric vehicles but also for grid-scale electricity storage as renewable energy capacity expands globally. The consequences for traditional automakers are profound. Many foreign automotive brands have lost their market