Barium titanate (CAS number 12047-27-7), a pyroelectric and piezoelectric material, is applied in a wide range of electronic products, including capacitors, transducers, and optics. Barium titanate powder adopts an ABX3 perovskite structure with polymorphs of cubic (currently available at Ossila), tetragonal, orthorhombic, and rhombohedral crystal structures.
Barium titanate has recently been involved in battery research. It is applied as a cathode and an additive in the electrolyte of Li-ion batteries. Theoretical simulations reveal that barium titanate diminishes the growth and spread of lithium dendrite on the electrode. Barium titanate offers a long cycle life to solid-state batteries, with a reversible capacity of 103.2 mAh/g over 500 cycles at 1C. When used as an additive in the electrolyte, barium titanate boosts ionic conductivity to 1.5 × 10−4 S/cm at 25 °C.
General Information CAS Number 12047-27-7 Chemical Formula BaTiO3 Full Name Barium titanate Molecular Weight 233.19 g/mol Synonyms BTO, Barium titanate (IV), Barium titanium oxide, Barium metatitanate Classification or Family Batteries, Cathode materials, Photonics, Solid-state batteries, Piezoelectric Product Details Product Code M2443A1 Average Particle Size 90 nm Purity 99.95% Crystal Structure Cubic Density 5.90 g/cm3 Specific Surface Area 10.50 m2/g Melting Point 1625 °C Appearance White powder