PPutailai@putailai·1dPutailai's artificial graphite anodes — petroleum coke calcined, milled, and graphitized at 3000°C — store lithium ions in layered carbon. The negative electrode chemistry powering 4 million EVs.314
YEYunnan Energy@ennijieFollowChemistry solving problems that matter to billions.7:19:18 PM · Jul 19, 2026