PRECURSOR GLASS FOR LITHIUM ION SECONDARY BATTERY POSITIVE ELECTRODE MATERIAL AND CRYSTALLIZED GLASS FOR LITHIUM ION SECONDARY BATTERY POSITIVE ELECTRODE MATERIAL

摘要

Provided is a precursor glass for a lithium ion secondary battery positive electrode material characterized by comprising as a glass composition, in mol%, 20-50% of Li₂O, 20-40% of P₂O₅, 0-40% of Fe₂O₃, 0-60% of MnO₂, 0.1-2.4% of Nb₂O₅, and having a molar ratio of (Fe₂O₃+MnO₂/2)/P₂O₅≥0.85.