【#Tech24H】Who would have thought that baking soda, used daily for leavening dough, is now a new raw material for power batteries? When talking about newenergy batteries, lithiumion batteries come to mind first. Yet 75% of China’s lithium resources are imported. This year, the price of lithium carbonate has risen nearly 60%. Compared with lithium batteries, sodiumion batteries have clear advantages: China has abundant sodium reserves, and baking soda, a staple in dough preparation, is one of its raw materials. After mass production, the cost of sodiumion batteries is expected to be 30–40% lower than that of lithium iron phosphate batteries, eliminating the risk of lithium price spikes. Wuhan Tianna Technology and Wuhan Qina New Energy Technology have successfully developed sodiumion batteries. These batteries retain over 85% of their capacity at -20 Celsius degree and can still discharge stably at -45 Celsius degree, making them wellsuited for cold northern winters and highaltitude regions, thereby solving power supply challenges in frigid areas. Moreover, sodiumion batteries offer high safety and are less prone to catching fire. However, their energy density is lower than that of lithium batteries, so they cannot yet support highend, longrange electric vehicles in the near term. Sodiumion batteries are mainly targeted at energy storage, power tools, lowspeed vehicles, and electric vessels.