... a new kind of iron button battery---1.5V Li-FeS2 button cell.∴ In 2007, 1.5V Li-FeS2 button cell was finished designing and ... materials: limited silver resource restricts the yield of Zn-Ag button battery. Abundant materials in Li-FeS2 ensure the mass production ... of Li-FeS2 button battery.Application:Digital calipers, calculators, DV, electronic clocks, medical ...