Reimagining Sodium-Ion Batteries with Inexpensive Materials As the race for cheaper, more sustainable energy storage intensifies, researchers are turning to sodium-ion batteries (SIBs) as a practical alternative to lithium-ion systems. A recent development highlights a compelling approach: pairing a low-cost P2-type cathode, Na0.67Mn0.33Ni0.33Fe0.33O2, with a hard carbon anode derived from lavender flowers. This combination aims…